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Diffstat (limited to 'src/misc1.c')
| -rw-r--r-- | src/misc1.c | 8455 |
1 files changed, 8455 insertions, 0 deletions
diff --git a/src/misc1.c b/src/misc1.c new file mode 100644 index 000000000..0e0705dbd --- /dev/null +++ b/src/misc1.c @@ -0,0 +1,8455 @@ +/* vi:set ts=8 sts=4 sw=4: + * + * VIM - Vi IMproved by Bram Moolenaar + * + * Do ":help uganda" in Vim to read copying and usage conditions. + * Do ":help credits" in Vim to see a list of people who contributed. + * See README.txt for an overview of the Vim source code. + */ + +/* + * misc1.c: functions that didn't seem to fit elsewhere + */ + +#include "vim.h" +#include "version.h" + +#ifdef HAVE_FCNTL_H +# include <fcntl.h> /* for chdir() */ +#endif + +static char_u *vim_version_dir __ARGS((char_u *vimdir)); +static char_u *remove_tail __ARGS((char_u *p, char_u *pend, char_u *name)); +#if defined(USE_EXE_NAME) && defined(MACOS_X) +static char_u *remove_tail_with_ext __ARGS((char_u *p, char_u *pend, char_u *ext)); +#endif +static int get_indent_str __ARGS((char_u *ptr, int ts)); +static int copy_indent __ARGS((int size, char_u *src)); + +/* + * Count the size (in window cells) of the indent in the current line. + */ + int +get_indent() +{ + return get_indent_str(ml_get_curline(), (int)curbuf->b_p_ts); +} + +/* + * Count the size (in window cells) of the indent in line "lnum". + */ + int +get_indent_lnum(lnum) + linenr_T lnum; +{ + return get_indent_str(ml_get(lnum), (int)curbuf->b_p_ts); +} + +#if defined(FEAT_FOLDING) || defined(PROTO) +/* + * Count the size (in window cells) of the indent in line "lnum" of buffer + * "buf". + */ + int +get_indent_buf(buf, lnum) + buf_T *buf; + linenr_T lnum; +{ + return get_indent_str(ml_get_buf(buf, lnum, FALSE), (int)buf->b_p_ts); +} +#endif + +/* + * count the size (in window cells) of the indent in line "ptr", with + * 'tabstop' at "ts" + */ + static int +get_indent_str(ptr, ts) + char_u *ptr; + int ts; +{ + int count = 0; + + for ( ; *ptr; ++ptr) + { + if (*ptr == TAB) /* count a tab for what it is worth */ + count += ts - (count % ts); + else if (*ptr == ' ') + ++count; /* count a space for one */ + else + break; + } + return (count); +} + +/* + * Set the indent of the current line. + * Leaves the cursor on the first non-blank in the line. + * Caller must take care of undo. + * "flags": + * SIN_CHANGED: call changed_bytes() if the line was changed. + * SIN_INSERT: insert the indent in front of the line. + * SIN_UNDO: save line for undo before changing it. + * Returns TRUE if the line was changed. + */ + int +set_indent(size, flags) + int size; + int flags; +{ + char_u *p; + char_u *newline; + char_u *oldline; + char_u *s; + int todo; + int ind_len; + int line_len; + int doit = FALSE; + int ind_done; + int tab_pad; + + /* + * First check if there is anything to do and compute the number of + * characters needed for the indent. + */ + todo = size; + ind_len = 0; + p = oldline = ml_get_curline(); + + /* Calculate the buffer size for the new indent, and check to see if it + * isn't already set */ + + /* if 'expandtab' isn't set: use TABs */ + if (!curbuf->b_p_et) + { + /* If 'preserveindent' is set then reuse as much as possible of + * the existing indent structure for the new indent */ + if (!(flags & SIN_INSERT) && curbuf->b_p_pi) + { + ind_done = 0; + + /* count as many characters as we can use */ + while (todo > 0 && vim_iswhite(*p)) + { + if (*p == TAB) + { + tab_pad = (int)curbuf->b_p_ts + - (ind_done % (int)curbuf->b_p_ts); + /* stop if this tab will overshoot the target */ + if (todo < tab_pad) + break; + todo -= tab_pad; + ++ind_len; + ind_done += tab_pad; + } + else + { + --todo; + ++ind_len; + ++ind_done; + } + ++p; + } + + /* Fill to next tabstop with a tab, if possible */ + tab_pad = (int)curbuf->b_p_ts - (ind_done % (int)curbuf->b_p_ts); + if (todo >= tab_pad) + { + doit = TRUE; + todo -= tab_pad; + ++ind_len; + /* ind_done += tab_pad; */ + } + } + + /* count tabs required for indent */ + while (todo >= (int)curbuf->b_p_ts) + { + if (*p != TAB) + doit = TRUE; + else + ++p; + todo -= (int)curbuf->b_p_ts; + ++ind_len; + /* ind_done += (int)curbuf->b_p_ts; */ + } + } + /* count spaces required for indent */ + while (todo > 0) + { + if (*p != ' ') + doit = TRUE; + else + ++p; + --todo; + ++ind_len; + /* ++ind_done; */ + } + + /* Return if the indent is OK already. */ + if (!doit && !vim_iswhite(*p) && !(flags & SIN_INSERT)) + return FALSE; + + /* Allocate memory for the new line. */ + if (flags & SIN_INSERT) + p = oldline; + else + p = skipwhite(p); + line_len = (int)STRLEN(p) + 1; + newline = alloc(ind_len + line_len); + if (newline == NULL) + return FALSE; + + /* Put the characters in the new line. */ + s = newline; + todo = size; + /* if 'expandtab' isn't set: use TABs */ + if (!curbuf->b_p_et) + { + /* If 'preserveindent' is set then reuse as much as possible of + * the existing indent structure for the new indent */ + if (!(flags & SIN_INSERT) && curbuf->b_p_pi) + { + p = oldline; + ind_done = 0; + + while (todo > 0 && vim_iswhite(*p)) + { + if (*p == TAB) + { + tab_pad = (int)curbuf->b_p_ts + - (ind_done % (int)curbuf->b_p_ts); + /* stop if this tab will overshoot the target */ + if (todo < tab_pad) + break; + todo -= tab_pad; + ind_done += tab_pad; + } + else + { + --todo; + ++ind_done; + } + *s++ = *p++; + } + + /* Fill to next tabstop with a tab, if possible */ + tab_pad = (int)curbuf->b_p_ts - (ind_done % (int)curbuf->b_p_ts); + if (todo >= tab_pad) + { + *s++ = TAB; + todo -= tab_pad; + } + + p = skipwhite(p); + } + + while (todo >= (int)curbuf->b_p_ts) + { + *s++ = TAB; + todo -= (int)curbuf->b_p_ts; + } + } + while (todo > 0) + { + *s++ = ' '; + --todo; + } + mch_memmove(s, p, (size_t)line_len); + + /* Replace the line (unless undo fails). */ + if (!(flags & SIN_UNDO) || u_savesub(curwin->w_cursor.lnum) == OK) + { + ml_replace(curwin->w_cursor.lnum, newline, FALSE); + if (flags & SIN_CHANGED) + changed_bytes(curwin->w_cursor.lnum, 0); + /* Correct saved cursor position if it's after the indent. */ + if (saved_cursor.lnum == curwin->w_cursor.lnum + && saved_cursor.col >= (colnr_T)(p - oldline)) + saved_cursor.col += ind_len - (p - oldline); + } + else + vim_free(newline); + + curwin->w_cursor.col = ind_len; + return TRUE; +} + +/* + * Copy the indent from ptr to the current line (and fill to size) + * Leaves the cursor on the first non-blank in the line. + * Returns TRUE if the line was changed. + */ + static int +copy_indent(size, src) + int size; + char_u *src; +{ + char_u *p = NULL; + char_u *line = NULL; + char_u *s; + int todo; + int ind_len; + int line_len = 0; + int tab_pad; + int ind_done; + int round; + + /* Round 1: compute the number of characters needed for the indent + * Round 2: copy the characters. */ + for (round = 1; round <= 2; ++round) + { + todo = size; + ind_len = 0; + ind_done = 0; + s = src; + + /* Count/copy the usable portion of the source line */ + while (todo > 0 && vim_iswhite(*s)) + { + if (*s == TAB) + { + tab_pad = (int)curbuf->b_p_ts + - (ind_done % (int)curbuf->b_p_ts); + /* Stop if this tab will overshoot the target */ + if (todo < tab_pad) + break; + todo -= tab_pad; + ind_done += tab_pad; + } + else + { + --todo; + ++ind_done; + } + ++ind_len; + if (round == 2) + *p++ = *s; + ++s; + } + + /* Fill to next tabstop with a tab, if possible */ + tab_pad = (int)curbuf->b_p_ts - (ind_done % (int)curbuf->b_p_ts); + if (todo >= tab_pad) + { + todo -= tab_pad; + ++ind_len; + if (round == 2) + *p++ = TAB; + } + + /* Add tabs required for indent */ + while (todo >= (int)curbuf->b_p_ts) + { + todo -= (int)curbuf->b_p_ts; + ++ind_len; + if (round == 2) + *p++ = TAB; + } + + /* Count/add spaces required for indent */ + while (todo > 0) + { + --todo; + ++ind_len; + if (round == 2) + *p++ = ' '; + } + + if (round == 1) + { + /* Allocate memory for the result: the copied indent, new indent + * and the rest of the line. */ + line_len = (int)STRLEN(ml_get_curline()) + 1; + line = alloc(ind_len + line_len); + if (line == NULL) + return FALSE; + p = line; + } + } + + /* Append the original line */ + mch_memmove(p, ml_get_curline(), (size_t)line_len); + + /* Replace the line */ + ml_replace(curwin->w_cursor.lnum, line, FALSE); + + /* Put the cursor after the indent. */ + curwin->w_cursor.col = ind_len; + return TRUE; +} + +/* + * Return the indent of the current line after a number. Return -1 if no + * number was found. Used for 'n' in 'formatoptions': numbered list. + */ + int +get_number_indent(lnum) + linenr_T lnum; +{ + char_u *line; + char_u *p; + colnr_T col; + pos_T pos; + + if (lnum > curbuf->b_ml.ml_line_count) + return -1; + line = ml_get(lnum); + p = skipwhite(line); + if (!VIM_ISDIGIT(*p)) + return -1; + p = skipdigits(p); + if (vim_strchr((char_u *)":.)]}\t ", *p) == NULL) + return -1; + p = skipwhite(p + 1); + if (*p == NUL) + return -1; + pos.lnum = lnum; + pos.col = (colnr_T)(p - line); + getvcol(curwin, &pos, &col, NULL, NULL); + return (int)col; +} + +#if defined(FEAT_CINDENT) || defined(FEAT_SMARTINDENT) + +static int cin_is_cinword __ARGS((char_u *line)); + +/* + * Return TRUE if the string "line" starts with a word from 'cinwords'. + */ + static int +cin_is_cinword(line) + char_u *line; +{ + char_u *cinw; + char_u *cinw_buf; + int cinw_len; + int retval = FALSE; + int len; + + cinw_len = (int)STRLEN(curbuf->b_p_cinw) + 1; + cinw_buf = alloc((unsigned)cinw_len); + if (cinw_buf != NULL) + { + line = skipwhite(line); + for (cinw = curbuf->b_p_cinw; *cinw; ) + { + len = copy_option_part(&cinw, cinw_buf, cinw_len, ","); + if (STRNCMP(line, cinw_buf, len) == 0 + && (!vim_iswordc(line[len]) || !vim_iswordc(line[len - 1]))) + { + retval = TRUE; + break; + } + } + vim_free(cinw_buf); + } + return retval; +} +#endif + +/* + * open_line: Add a new line below or above the current line. + * + * For VREPLACE mode, we only add a new line when we get to the end of the + * file, otherwise we just start replacing the next line. + * + * Caller must take care of undo. Since VREPLACE may affect any number of + * lines however, it may call u_save_cursor() again when starting to change a + * new line. + * "flags": OPENLINE_DELSPACES delete spaces after cursor + * OPENLINE_DO_COM format comments + * OPENLINE_KEEPTRAIL keep trailing spaces + * OPENLINE_MARKFIX adjust mark positions after the line break + * + * Return TRUE for success, FALSE for failure + */ + int +open_line(dir, flags, old_indent) + int dir; /* FORWARD or BACKWARD */ + int flags; + int old_indent; /* indent for after ^^D in Insert mode */ +{ + char_u *saved_line; /* copy of the original line */ + char_u *next_line = NULL; /* copy of the next line */ + char_u *p_extra = NULL; /* what goes to next line */ + int less_cols = 0; /* less columns for mark in new line */ + int less_cols_off = 0; /* columns to skip for mark adjust */ + pos_T old_cursor; /* old cursor position */ + int newcol = 0; /* new cursor column */ + int newindent = 0; /* auto-indent of the new line */ + int n; + int trunc_line = FALSE; /* truncate current line afterwards */ + int retval = FALSE; /* return value, default is FAIL */ +#ifdef FEAT_COMMENTS + int extra_len = 0; /* length of p_extra string */ + int lead_len; /* length of comment leader */ + char_u *lead_flags; /* position in 'comments' for comment leader */ + char_u *leader = NULL; /* copy of comment leader */ +#endif + char_u *allocated = NULL; /* allocated memory */ +#if defined(FEAT_SMARTINDENT) || defined(FEAT_VREPLACE) || defined(FEAT_LISP) \ + || defined(FEAT_CINDENT) || defined(FEAT_COMMENTS) + char_u *p; +#endif + int saved_char = NUL; /* init for GCC */ +#if defined(FEAT_SMARTINDENT) || defined(FEAT_COMMENTS) + pos_T *pos; +#endif +#ifdef FEAT_SMARTINDENT + int do_si = (!p_paste && curbuf->b_p_si +# ifdef FEAT_CINDENT + && !curbuf->b_p_cin +# endif + ); + int no_si = FALSE; /* reset did_si afterwards */ + int first_char = NUL; /* init for GCC */ +#endif +#if defined(FEAT_VREPLACE) && (defined(FEAT_LISP) || defined(FEAT_CINDENT)) + int vreplace_mode; +#endif + int did_append; /* appended a new line */ + int saved_pi = curbuf->b_p_pi; /* copy of preserveindent setting */ + + /* + * make a copy of the current line so we can mess with it + */ + saved_line = vim_strsave(ml_get_curline()); + if (saved_line == NULL) /* out of memory! */ + return FALSE; + +#ifdef FEAT_VREPLACE + if (State & VREPLACE_FLAG) + { + /* + * With VREPLACE we make a copy of the next line, which we will be + * starting to replace. First make the new line empty and let vim play + * with the indenting and comment leader to its heart's content. Then + * we grab what it ended up putting on the new line, put back the + * original line, and call ins_char() to put each new character onto + * the line, replacing what was there before and pushing the right + * stuff onto the replace stack. -- webb. + */ + if (curwin->w_cursor.lnum < orig_line_count) + next_line = vim_strsave(ml_get(curwin->w_cursor.lnum + 1)); + else + next_line = vim_strsave((char_u *)""); + if (next_line == NULL) /* out of memory! */ + goto theend; + + /* + * In VREPLACE mode, a NL replaces the rest of the line, and starts + * replacing the next line, so push all of the characters left on the + * line onto the replace stack. We'll push any other characters that + * might be replaced at the start of the next line (due to autoindent + * etc) a bit later. + */ + replace_push(NUL); /* Call twice because BS over NL expects it */ + replace_push(NUL); + p = saved_line + curwin->w_cursor.col; + while (*p != NUL) + replace_push(*p++); + saved_line[curwin->w_cursor.col] = NUL; + } +#endif + + if ((State & INSERT) +#ifdef FEAT_VREPLACE + && !(State & VREPLACE_FLAG) +#endif + ) + { + p_extra = saved_line + curwin->w_cursor.col; +#ifdef FEAT_SMARTINDENT + if (do_si) /* need first char after new line break */ + { + p = skipwhite(p_extra); + first_char = *p; + } +#endif +#ifdef FEAT_COMMENTS + extra_len = (int)STRLEN(p_extra); +#endif + saved_char = *p_extra; + *p_extra = NUL; + } + + u_clearline(); /* cannot do "U" command when adding lines */ +#ifdef FEAT_SMARTINDENT + did_si = FALSE; +#endif + ai_col = 0; + + /* + * If we just did an auto-indent, then we didn't type anything on + * the prior line, and it should be truncated. Do this even if 'ai' is not + * set because automatically inserting a comment leader also sets did_ai. + */ + if (dir == FORWARD && did_ai) + trunc_line = TRUE; + + /* + * If 'autoindent' and/or 'smartindent' is set, try to figure out what + * indent to use for the new line. + */ + if (curbuf->b_p_ai +#ifdef FEAT_SMARTINDENT + || do_si +#endif + ) + { + /* + * count white space on current line + */ + newindent = get_indent_str(saved_line, (int)curbuf->b_p_ts); + if (newindent == 0) + newindent = old_indent; /* for ^^D command in insert mode */ + +#ifdef FEAT_SMARTINDENT + /* + * Do smart indenting. + * In insert/replace mode (only when dir == FORWARD) + * we may move some text to the next line. If it starts with '{' + * don't add an indent. Fixes inserting a NL before '{' in line + * "if (condition) {" + */ + if (!trunc_line && do_si && *saved_line != NUL + && (p_extra == NULL || first_char != '{')) + { + char_u *ptr; + char_u last_char; + + old_cursor = curwin->w_cursor; + ptr = saved_line; +# ifdef FEAT_COMMENTS + if (flags & OPENLINE_DO_COM) + lead_len = get_leader_len(ptr, NULL, FALSE); + else + lead_len = 0; +# endif + if (dir == FORWARD) + { + /* + * Skip preprocessor directives, unless they are + * recognised as comments. + */ + if ( +# ifdef FEAT_COMMENTS + lead_len == 0 && +# endif + ptr[0] == '#') + { + while (ptr[0] == '#' && curwin->w_cursor.lnum > 1) + ptr = ml_get(--curwin->w_cursor.lnum); + newindent = get_indent(); + } +# ifdef FEAT_COMMENTS + if (flags & OPENLINE_DO_COM) + lead_len = get_leader_len(ptr, NULL, FALSE); + else + lead_len = 0; + if (lead_len > 0) + { + /* + * This case gets the following right: + * \* + * * A comment (read '\' as '/'). + * *\ + * #define IN_THE_WAY + * This should line up here; + */ + p = skipwhite(ptr); + if (p[0] == '/' && p[1] == '*') + p++; + if (p[0] == '*') + { + for (p++; *p; p++) + { + if (p[0] == '/' && p[-1] == '*') + { + /* + * End of C comment, indent should line up + * with the line containing the start of + * the comment + */ + curwin->w_cursor.col = (colnr_T)(p - ptr); + if ((pos = findmatch(NULL, NUL)) != NULL) + { + curwin->w_cursor.lnum = pos->lnum; + newindent = get_indent(); + } + } + } + } + } + else /* Not a comment line */ +# endif + { + /* Find last non-blank in line */ + p = ptr + STRLEN(ptr) - 1; + while (p > ptr && vim_iswhite(*p)) + --p; + last_char = *p; + + /* + * find the character just before the '{' or ';' + */ + if (last_char == '{' || last_char == ';') + { + if (p > ptr) + --p; + while (p > ptr && vim_iswhite(*p)) + --p; + } + /* + * Try to catch lines that are split over multiple + * lines. eg: + * if (condition && + * condition) { + * Should line up here! + * } + */ + if (*p == ')') + { + curwin->w_cursor.col = (colnr_T)(p - ptr); + if ((pos = findmatch(NULL, '(')) != NULL) + { + curwin->w_cursor.lnum = pos->lnum; + newindent = get_indent(); + ptr = ml_get_curline(); + } + } + /* + * If last character is '{' do indent, without + * checking for "if" and the like. + */ + if (last_char == '{') + { + did_si = TRUE; /* do indent */ + no_si = TRUE; /* don't delete it when '{' typed */ + } + /* + * Look for "if" and the like, use 'cinwords'. + * Don't do this if the previous line ended in ';' or + * '}'. + */ + else if (last_char != ';' && last_char != '}' + && cin_is_cinword(ptr)) + did_si = TRUE; + } + } + else /* dir == BACKWARD */ + { + /* + * Skip preprocessor directives, unless they are + * recognised as comments. + */ + if ( +# ifdef FEAT_COMMENTS + lead_len == 0 && +# endif + ptr[0] == '#') + { + int was_backslashed = FALSE; + + while ((ptr[0] == '#' || was_backslashed) && + curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count) + { + if (*ptr && ptr[STRLEN(ptr) - 1] == '\\') + was_backslashed = TRUE; + else + was_backslashed = FALSE; + ptr = ml_get(++curwin->w_cursor.lnum); + } + if (was_backslashed) + newindent = 0; /* Got to end of file */ + else + newindent = get_indent(); + } + p = skipwhite(ptr); + if (*p == '}') /* if line starts with '}': do indent */ + did_si = TRUE; + else /* can delete indent when '{' typed */ + can_si_back = TRUE; + } + curwin->w_cursor = old_cursor; + } + if (do_si) + can_si = TRUE; +#endif /* FEAT_SMARTINDENT */ + + did_ai = TRUE; + } + +#ifdef FEAT_COMMENTS + /* + * Find out if the current line starts with a comment leader. + * This may then be inserted in front of the new line. + */ + end_comment_pending = NUL; + if (flags & OPENLINE_DO_COM) + lead_len = get_leader_len(saved_line, &lead_flags, dir == BACKWARD); + else + lead_len = 0; + if (lead_len > 0) + { + char_u *lead_repl = NULL; /* replaces comment leader */ + int lead_repl_len = 0; /* length of *lead_repl */ + char_u lead_middle[COM_MAX_LEN]; /* middle-comment string */ + char_u lead_end[COM_MAX_LEN]; /* end-comment string */ + char_u *comment_end = NULL; /* where lead_end has been found */ + int extra_space = FALSE; /* append extra space */ + int current_flag; + int require_blank = FALSE; /* requires blank after middle */ + char_u *p2; + + /* + * If the comment leader has the start, middle or end flag, it may not + * be used or may be replaced with the middle leader. + */ + for (p = lead_flags; *p && *p != ':'; ++p) + { + if (*p == COM_BLANK) + { + require_blank = TRUE; + continue; + } + if (*p == COM_START || *p == COM_MIDDLE) + { + current_flag = *p; + if (*p == COM_START) + { + /* + * Doing "O" on a start of comment does not insert leader. + */ + if (dir == BACKWARD) + { + lead_len = 0; + break; + } + + /* find start of middle part */ + (void)copy_option_part(&p, lead_middle, COM_MAX_LEN, ","); + require_blank = FALSE; + } + + /* + * Isolate the strings of the middle and end leader. + */ + while (*p && p[-1] != ':') /* find end of middle flags */ + { + if (*p == COM_BLANK) + require_blank = TRUE; + ++p; + } + (void)copy_option_part(&p, lead_middle, COM_MAX_LEN, ","); + + while (*p && p[-1] != ':') /* find end of end flags */ + { + /* Check whether we allow automatic ending of comments */ + if (*p == COM_AUTO_END) + end_comment_pending = -1; /* means we want to set it */ + ++p; + } + n = copy_option_part(&p, lead_end, COM_MAX_LEN, ","); + + if (end_comment_pending == -1) /* we can set it now */ + end_comment_pending = lead_end[n - 1]; + + /* + * If the end of the comment is in the same line, don't use + * the comment leader. + */ + if (dir == FORWARD) + { + for (p = saved_line + lead_len; *p; ++p) + if (STRNCMP(p, lead_end, n) == 0) + { + comment_end = p; + lead_len = 0; + break; + } + } + + /* + * Doing "o" on a start of comment inserts the middle leader. + */ + if (lead_len > 0) + { + if (current_flag == COM_START) + { + lead_repl = lead_middle; + lead_repl_len = (int)STRLEN(lead_middle); + } + + /* + * If we have hit RETURN immediately after the start + * comment leader, then put a space after the middle + * comment leader on the next line. + */ + if (!vim_iswhite(saved_line[lead_len - 1]) + && ((p_extra != NULL + && (int)curwin->w_cursor.col == lead_len) + || (p_extra == NULL + && saved_line[lead_len] == NUL) + || require_blank)) + extra_space = TRUE; + } + break; + } + if (*p == COM_END) + { + /* + * Doing "o" on the end of a comment does not insert leader. + * Remember where the end is, might want to use it to find the + * start (for C-comments). + */ + if (dir == FORWARD) + { + comment_end = skipwhite(saved_line); + lead_len = 0; + break; + } + + /* + * Doing "O" on the end of a comment inserts the middle leader. + * Find the string for the middle leader, searching backwards. + */ + while (p > curbuf->b_p_com && *p != ',') + --p; + for (lead_repl = p; lead_repl > curbuf->b_p_com + && lead_repl[-1] != ':'; --lead_repl) + ; + lead_repl_len = (int)(p - lead_repl); + + /* We can probably always add an extra space when doing "O" on + * the comment-end */ + extra_space = TRUE; + + /* Check whether we allow automatic ending of comments */ + for (p2 = p; *p2 && *p2 != ':'; p2++) + { + if (*p2 == COM_AUTO_END) + end_comment_pending = -1; /* means we want to set it */ + } + if (end_comment_pending == -1) + { + /* Find last character in end-comment string */ + while (*p2 && *p2 != ',') + p2++; + end_comment_pending = p2[-1]; + } + break; + } + if (*p == COM_FIRST) + { + /* + * Comment leader for first line only: Don't repeat leader + * when using "O", blank out leader when using "o". + */ + if (dir == BACKWARD) + lead_len = 0; + else + { + lead_repl = (char_u *)""; + lead_repl_len = 0; + } + break; + } + } + if (lead_len) + { + /* allocate buffer (may concatenate p_exta later) */ + leader = alloc(lead_len + lead_repl_len + extra_space + + extra_len + 1); + allocated = leader; /* remember to free it later */ + + if (leader == NULL) + lead_len = 0; + else + { + STRNCPY(leader, saved_line, lead_len); + leader[lead_len] = NUL; + + /* + * Replace leader with lead_repl, right or left adjusted + */ + if (lead_repl != NULL) + { + int c = 0; + int off = 0; + + for (p = lead_flags; *p && *p != ':'; ++p) + { + if (*p == COM_RIGHT || *p == COM_LEFT) + c = *p; + else if (VIM_ISDIGIT(*p) || *p == '-') + off = getdigits(&p); + } + if (c == COM_RIGHT) /* right adjusted leader */ + { + /* find last non-white in the leader to line up with */ + for (p = leader + lead_len - 1; p > leader + && vim_iswhite(*p); --p) + ; + + ++p; + if (p < leader + lead_repl_len) + p = leader; + else + p -= lead_repl_len; + mch_memmove(p, lead_repl, (size_t)lead_repl_len); + if (p + lead_repl_len > leader + lead_len) + p[lead_repl_len] = NUL; + + /* blank-out any other chars from the old leader. */ + while (--p >= leader) + if (!vim_iswhite(*p)) + *p = ' '; + } + else /* left adjusted leader */ + { + p = skipwhite(leader); + mch_memmove(p, lead_repl, (size_t)lead_repl_len); + + /* Replace any remaining non-white chars in the old + * leader by spaces. Keep Tabs, the indent must + * remain the same. */ + for (p += lead_repl_len; p < leader + lead_len; ++p) + if (!vim_iswhite(*p)) + { + /* Don't put a space before a TAB. */ + if (p + 1 < leader + lead_len && p[1] == TAB) + { + --lead_len; + mch_memmove(p, p + 1, + (leader + lead_len) - p); + } + else + *p = ' '; + } + *p = NUL; + } + + /* Recompute the indent, it may have changed. */ + if (curbuf->b_p_ai +#ifdef FEAT_SMARTINDENT + || do_si +#endif + ) + newindent = get_indent_str(leader, (int)curbuf->b_p_ts); + + /* Add the indent offset */ + if (newindent + off < 0) + { + off = -newindent; + newindent = 0; + } + else + newindent += off; + + /* Correct trailing spaces for the shift, so that + * alignment remains equal. */ + while (off > 0 && lead_len > 0 + && leader[lead_len - 1] == ' ') + { + /* Don't do it when there is a tab before the space */ + if (vim_strchr(skipwhite(leader), '\t') != NULL) + break; + --lead_len; + --off; + } + + /* If the leader ends in white space, don't add an + * extra space */ + if (lead_len > 0 && vim_iswhite(leader[lead_len - 1])) + extra_space = FALSE; + leader[lead_len] = NUL; + } + + if (extra_space) + { + leader[lead_len++] = ' '; + leader[lead_len] = NUL; + } + + newcol = lead_len; + + /* + * if a new indent will be set below, remove the indent that + * is in the comment leader + */ + if (newindent +#ifdef FEAT_SMARTINDENT + || did_si +#endif + ) + { + while (lead_len && vim_iswhite(*leader)) + { + --lead_len; + --newcol; + ++leader; + } + } + + } +#ifdef FEAT_SMARTINDENT + did_si = can_si = FALSE; +#endif + } + else if (comment_end != NULL) + { + /* + * We have finished a comment, so we don't use the leader. + * If this was a C-comment and 'ai' or 'si' is set do a normal + * indent to align with the line containing the start of the + * comment. + */ + if (comment_end[0] == '*' && comment_end[1] == '/' && + (curbuf->b_p_ai +#ifdef FEAT_SMARTINDENT + || do_si +#endif + )) + { + old_cursor = curwin->w_cursor; + curwin->w_cursor.col = (colnr_T)(comment_end - saved_line); + if ((pos = findmatch(NULL, NUL)) != NULL) + { + curwin->w_cursor.lnum = pos->lnum; + newindent = get_indent(); + } + curwin->w_cursor = old_cursor; + } + } + } +#endif + + /* (State == INSERT || State == REPLACE), only when dir == FORWARD */ + if (p_extra != NULL) + { + *p_extra = saved_char; /* restore char that NUL replaced */ + + /* + * When 'ai' set or "flags" has OPENLINE_DELSPACES, skip to the first + * non-blank. + * + * When in REPLACE mode, put the deleted blanks on the replace stack, + * preceded by a NUL, so they can be put back when a BS is entered. + */ + if (REPLACE_NORMAL(State)) + replace_push(NUL); /* end of extra blanks */ + if (curbuf->b_p_ai || (flags & OPENLINE_DELSPACES)) + { + while ((*p_extra == ' ' || *p_extra == '\t') +#ifdef FEAT_MBYTE + && (!enc_utf8 + || !utf_iscomposing(utf_ptr2char(p_extra + 1))) +#endif + ) + { + if (REPLACE_NORMAL(State)) + replace_push(*p_extra); + ++p_extra; + ++less_cols_off; + } + } + if (*p_extra != NUL) + did_ai = FALSE; /* append some text, don't truncate now */ + + /* columns for marks adjusted for removed columns */ + less_cols = (int)(p_extra - saved_line); + } + + if (p_extra == NULL) + p_extra = (char_u *)""; /* append empty line */ + +#ifdef FEAT_COMMENTS + /* concatenate leader and p_extra, if there is a leader */ + if (lead_len) + { + STRCAT(leader, p_extra); + p_extra = leader; + did_ai = TRUE; /* So truncating blanks works with comments */ + less_cols -= lead_len; + } + else + end_comment_pending = NUL; /* turns out there was no leader */ +#endif + + old_cursor = curwin->w_cursor; + if (dir == BACKWARD) + --curwin->w_cursor.lnum; +#ifdef FEAT_VREPLACE + if (!(State & VREPLACE_FLAG) || old_cursor.lnum >= orig_line_count) +#endif + { + if (ml_append(curwin->w_cursor.lnum, p_extra, (colnr_T)0, FALSE) + == FAIL) + goto theend; + /* Postpone calling changed_lines(), because it would mess up folding + * with markers. */ + mark_adjust(curwin->w_cursor.lnum + 1, (linenr_T)MAXLNUM, 1L, 0L); + did_append = TRUE; + } +#ifdef FEAT_VREPLACE + else + { + /* + * In VREPLACE mode we are starting to replace the next line. + */ + curwin->w_cursor.lnum++; + if (curwin->w_cursor.lnum >= Insstart.lnum + vr_lines_changed) + { + /* In case we NL to a new line, BS to the previous one, and NL + * again, we don't want to save the new line for undo twice. + */ + (void)u_save_cursor(); /* errors are ignored! */ + vr_lines_changed++; + } + ml_replace(curwin->w_cursor.lnum, p_extra, TRUE); + changed_bytes(curwin->w_cursor.lnum, 0); + curwin->w_cursor.lnum--; + did_append = FALSE; + } +#endif + + if (newindent +#ifdef FEAT_SMARTINDENT + || did_si +#endif + ) + { + ++curwin->w_cursor.lnum; +#ifdef FEAT_SMARTINDENT + if (did_si) + { + if (p_sr) + newindent -= newindent % (int)curbuf->b_p_sw; + newindent += (int)curbuf->b_p_sw; + } +#endif + /* Copy the indent only if expand tab is disabled */ + if (curbuf->b_p_ci && !curbuf->b_p_et) + { + (void)copy_indent(newindent, saved_line); + + /* + * Set the 'preserveindent' option so that any further screwing + * with the line doesn't entirely destroy our efforts to preserve + * it. It gets restored at the function end. + */ + curbuf->b_p_pi = TRUE; + } + else + (void)set_indent(newindent, SIN_INSERT); + less_cols -= curwin->w_cursor.col; + + ai_col = curwin->w_cursor.col; + + /* + * In REPLACE mode, for each character in the new indent, there must + * be a NUL on the replace stack, for when it is deleted with BS + */ + if (REPLACE_NORMAL(State)) + for (n = 0; n < (int)curwin->w_cursor.col; ++n) + replace_push(NUL); + newcol += curwin->w_cursor.col; +#ifdef FEAT_SMARTINDENT + if (no_si) + did_si = FALSE; +#endif + } + +#ifdef FEAT_COMMENTS + /* + * In REPLACE mode, for each character in the extra leader, there must be + * a NUL on the replace stack, for when it is deleted with BS. + */ + if (REPLACE_NORMAL(State)) + while (lead_len-- > 0) + replace_push(NUL); +#endif + + curwin->w_cursor = old_cursor; + + if (dir == FORWARD) + { + if (trunc_line || (State & INSERT)) + { + /* truncate current line at cursor */ + saved_line[curwin->w_cursor.col] = NUL; + /* Remove trailing white space, unless OPENLINE_KEEPTRAIL used. */ + if (trunc_line && !(flags & OPENLINE_KEEPTRAIL)) + truncate_spaces(saved_line); + ml_replace(curwin->w_cursor.lnum, saved_line, FALSE); + saved_line = NULL; + if (did_append) + { + changed_lines(curwin->w_cursor.lnum, curwin->w_cursor.col, + curwin->w_cursor.lnum + 1, 1L); + did_append = FALSE; + + /* Move marks after the line break to the new line. */ + if (flags & OPENLINE_MARKFIX) + mark_col_adjust(curwin->w_cursor.lnum, + curwin->w_cursor.col + less_cols_off, + 1L, (long)-less_cols); + } + else + changed_bytes(curwin->w_cursor.lnum, curwin->w_cursor.col); + } + + /* + * Put the cursor on the new line. Careful: the scrollup() above may + * have moved w_cursor, we must use old_cursor. + */ + curwin->w_cursor.lnum = old_cursor.lnum + 1; + } + if (did_append) + changed_lines(curwin->w_cursor.lnum, 0, curwin->w_cursor.lnum, 1L); + + curwin->w_cursor.col = newcol; +#ifdef FEAT_VIRTUALEDIT + curwin->w_cursor.coladd = 0; +#endif + +#if defined(FEAT_VREPLACE) && (defined(FEAT_LISP) || defined(FEAT_CINDENT)) + /* + * In VREPLACE mode, we are handling the replace stack ourselves, so stop + * fixthisline() from doing it (via change_indent()) by telling it we're in + * normal INSERT mode. + */ + if (State & VREPLACE_FLAG) + { + vreplace_mode = State; /* So we know to put things right later */ + State = INSERT; + } + else + vreplace_mode = 0; +#endif +#ifdef FEAT_LISP + /* + * May do lisp indenting. + */ + if (!p_paste +# ifdef FEAT_COMMENTS + && leader == NULL +# endif + && curbuf->b_p_lisp + && curbuf->b_p_ai) + { + fixthisline(get_lisp_indent); + p = ml_get_curline(); + ai_col = (colnr_T)(skipwhite(p) - p); + } +#endif +#ifdef FEAT_CINDENT + /* + * May do indenting after opening a new line. + */ + if (!p_paste + && (curbuf->b_p_cin +# ifdef FEAT_EVAL + || *curbuf->b_p_inde != NUL +# endif + ) + && in_cinkeys(dir == FORWARD + ? KEY_OPEN_FORW + : KEY_OPEN_BACK, ' ', linewhite(curwin->w_cursor.lnum))) + { + do_c_expr_indent(); + p = ml_get_curline(); + ai_col = (colnr_T)(skipwhite(p) - p); + } +#endif +#if defined(FEAT_VREPLACE) && (defined(FEAT_LISP) || defined(FEAT_CINDENT)) + if (vreplace_mode != 0) + State = vreplace_mode; +#endif + +#ifdef FEAT_VREPLACE + /* + * Finally, VREPLACE gets the stuff on the new line, then puts back the + * original line, and inserts the new stuff char by char, pushing old stuff + * onto the replace stack (via ins_char()). + */ + if (State & VREPLACE_FLAG) + { + /* Put new line in p_extra */ + p_extra = vim_strsave(ml_get_curline()); + if (p_extra == NULL) + goto theend; + + /* Put back original line */ + ml_replace(curwin->w_cursor.lnum, next_line, FALSE); + + /* Insert new stuff into line again */ + curwin->w_cursor.col = 0; +#ifdef FEAT_VIRTUALEDIT + curwin->w_cursor.coladd = 0; +#endif + ins_bytes(p_extra); /* will call changed_bytes() */ + vim_free(p_extra); + next_line = NULL; + } +#endif + + retval = TRUE; /* success! */ +theend: + curbuf->b_p_pi = saved_pi; + vim_free(saved_line); + vim_free(next_line); + vim_free(allocated); + return retval; +} + +#if defined(FEAT_COMMENTS) || defined(PROTO) +/* + * get_leader_len() returns the length of the prefix of the given string + * which introduces a comment. If this string is not a comment then 0 is + * returned. + * When "flags" is not NULL, it is set to point to the flags of the recognized + * comment leader. + * "backward" must be true for the "O" command. + */ + int +get_leader_len(line, flags, backward) + char_u *line; + char_u **flags; + int backward; +{ + int i, j; + int got_com = FALSE; + int found_one; + char_u part_buf[COM_MAX_LEN]; /* buffer for one option part */ + char_u *string; /* pointer to comment string */ + char_u *list; + + i = 0; + while (vim_iswhite(line[i])) /* leading white space is ignored */ + ++i; + + /* + * Repeat to match several nested comment strings. + */ + while (line[i]) + { + /* + * scan through the 'comments' option for a match + */ + found_one = FALSE; + for (list = curbuf->b_p_com; *list; ) + { + /* + * Get one option part into part_buf[]. Advance list to next one. + * put string at start of string. + */ + if (!got_com && flags != NULL) /* remember where flags started */ + *flags = list; + (void)copy_option_part(&list, part_buf, COM_MAX_LEN, ","); + string = vim_strchr(part_buf, ':'); + if (string == NULL) /* missing ':', ignore this part */ + continue; + *string++ = NUL; /* isolate flags from string */ + + /* + * When already found a nested comment, only accept further + * nested comments. + */ + if (got_com && vim_strchr(part_buf, COM_NEST) == NULL) + continue; + + /* When 'O' flag used don't use for "O" command */ + if (backward && vim_strchr(part_buf, COM_NOBACK) != NULL) + continue; + + /* + * Line contents and string must match. + * When string starts with white space, must have some white space + * (but the amount does not need to match, there might be a mix of + * TABs and spaces). + */ + if (vim_iswhite(string[0])) + { + if (i == 0 || !vim_iswhite(line[i - 1])) + continue; + while (vim_iswhite(string[0])) + ++string; + } + for (j = 0; string[j] != NUL && string[j] == line[i + j]; ++j) + ; + if (string[j] != NUL) + continue; + + /* + * When 'b' flag used, there must be white space or an + * end-of-line after the string in the line. + */ + if (vim_strchr(part_buf, COM_BLANK) != NULL + && !vim_iswhite(line[i + j]) && line[i + j] != NUL) + continue; + + /* + * We have found a match, stop searching. + */ + i += j; + got_com = TRUE; + found_one = TRUE; + break; + } + + /* + * No match found, stop scanning. + */ + if (!found_one) + break; + + /* + * Include any trailing white space. + */ + while (vim_iswhite(line[i])) + ++i; + + /* + * If this comment doesn't nest, stop here. + */ + if (vim_strchr(part_buf, COM_NEST) == NULL) + break; + } + return (got_com ? i : 0); +} +#endif + +/* + * Return the number of window lines occupied by buffer line "lnum". + */ + int +plines(lnum) + linenr_T lnum; +{ + return plines_win(curwin, lnum, TRUE); +} + + int +plines_win(wp, lnum, winheight) + win_T *wp; + linenr_T lnum; + int winheight; /* when TRUE limit to window height */ +{ +#if defined(FEAT_DIFF) || defined(PROTO) + /* Check for filler lines above this buffer line. When folded the result + * is one line anyway. */ + return plines_win_nofill(wp, lnum, winheight) + diff_check_fill(wp, lnum); +} + + int +plines_nofill(lnum) + linenr_T lnum; +{ + return plines_win_nofill(curwin, lnum, TRUE); +} + + int +plines_win_nofill(wp, lnum, winheight) + win_T *wp; + linenr_T lnum; + int winheight; /* when TRUE limit to window height */ +{ +#endif + int lines; + + if (!wp->w_p_wrap) + return 1; + +#ifdef FEAT_VERTSPLIT + if (wp->w_width == 0) + return 1; +#endif + +#ifdef FEAT_FOLDING + /* A folded lines is handled just like an empty line. */ + /* NOTE: Caller must handle lines that are MAYBE folded. */ + if (lineFolded(wp, lnum) == TRUE) + return 1; +#endif + + lines = plines_win_nofold(wp, lnum); + if (winheight > 0 && lines > wp->w_height) + return (int)wp->w_height; + return lines; +} + +/* + * Return number of window lines physical line "lnum" will occupy in window + * "wp". Does not care about folding, 'wrap' or 'diff'. + */ + int +plines_win_nofold(wp, lnum) + win_T *wp; + linenr_T lnum; +{ + char_u *s; + long col; + int width; + + s = ml_get_buf(wp->w_buffer, lnum, FALSE); + if (*s == NUL) /* empty line */ + return 1; + col = win_linetabsize(wp, s, (colnr_T)MAXCOL); + + /* + * If list mode is on, then the '$' at the end of the line may take up one + * extra column. + */ + if (wp->w_p_list && lcs_eol != NUL) + col += 1; + + /* + * Add column offset for 'number' and 'foldcolumn'. + */ + width = W_WIDTH(wp) - win_col_off(wp); + if (width <= 0) + return 32000; + if (col <= width) + return 1; + col -= width; + width += win_col_off2(wp); + return (col + (width - 1)) / width + 1; +} + +/* + * Like plines_win(), but only reports the number of physical screen lines + * used from the start of the line to the given column number. + */ + int +plines_win_col(wp, lnum, column) + win_T *wp; + linenr_T lnum; + long column; +{ + long col; + char_u *s; + int lines = 0; + int width; + +#ifdef FEAT_DIFF + /* Check for filler lines above this buffer line. When folded the result + * is one line anyway. */ + lines = diff_check_fill(wp, lnum); +#endif + + if (!wp->w_p_wrap) + return lines + 1; + +#ifdef FEAT_VERTSPLIT + if (wp->w_width == 0) + return lines + 1; +#endif + + s = ml_get_buf(wp->w_buffer, lnum, FALSE); + + col = 0; + while (*s != NUL && --column >= 0) + { + col += win_lbr_chartabsize(wp, s, (colnr_T)col, NULL); +#ifdef FEAT_MBYTE + if (has_mbyte) + s += (*mb_ptr2len_check)(s); + else +#endif + ++s; + } + + /* + * If *s is a TAB, and the TAB is not displayed as ^I, and we're not in + * INSERT mode, then col must be adjusted so that it represents the last + * screen position of the TAB. This only fixes an error when the TAB wraps + * from one screen line to the next (when 'columns' is not a multiple of + * 'ts') -- webb. + */ + if (*s == TAB && (State & NORMAL) && (!wp->w_p_list || lcs_tab1)) + col += win_lbr_chartabsize(wp, s, (colnr_T)col, NULL) - 1; + + /* + * Add column offset for 'number', 'foldcolumn', etc. + */ + width = W_WIDTH(wp) - win_col_off(wp); + if (width > 0) + { + lines += 1; + if (col >= width) + lines += (col - width) / (width + win_col_off2(wp)); + if (lines <= wp->w_height) + return lines; + } + return (int)(wp->w_height); /* maximum length */ +} + + int +plines_m_win(wp, first, last) + win_T *wp; + linenr_T first, last; +{ + int count = 0; + + while (first <= last) + { +#ifdef FEAT_FOLDING + int x; + + /* Check if there are any really folded lines, but also included lines + * that are maybe folded. */ + x = foldedCount(wp, first, NULL); + if (x > 0) + { + ++count; /* count 1 for "+-- folded" line */ + first += x; + } + else +#endif + { +#ifdef FEAT_DIFF + if (first == wp->w_topline) + count += plines_win_nofill(wp, first, TRUE) + wp->w_topfill; + else +#endif + count += plines_win(wp, first, TRUE); + ++first; + } + } + return (count); +} + +#if defined(FEAT_VREPLACE) || defined(FEAT_INS_EXPAND) || defined(PROTO) +/* + * Insert string "p" at the cursor position. Stops at a NUL byte. + * Handles Replace mode and multi-byte characters. + */ + void +ins_bytes(p) + char_u *p; +{ + ins_bytes_len(p, (int)STRLEN(p)); +} +#endif + +#if defined(FEAT_VREPLACE) || defined(FEAT_INS_EXPAND) \ + || defined(FEAT_COMMENTS) || defined(FEAT_MBYTE) || defined(PROTO) +/* + * Insert string "p" with length "len" at the cursor position. + * Handles Replace mode and multi-byte characters. + */ + void +ins_bytes_len(p, len) + char_u *p; + int len; +{ + int i; +# ifdef FEAT_MBYTE + int n; + + for (i = 0; i < len; i += n) + { + n = (*mb_ptr2len_check)(p + i); + ins_char_bytes(p + i, n); + } +# else + for (i = 0; i < len; ++i) + ins_char(p[i]); +# endif +} +#endif + +/* + * Insert or replace a single character at the cursor position. + * When in REPLACE or VREPLACE mode, replace any existing character. + * Caller must have prepared for undo. + * For multi-byte characters we get the whole character, the caller must + * convert bytes to a character. + */ + void +ins_char(c) + int c; +{ +#if defined(FEAT_MBYTE) || defined(PROTO) + char_u buf[MB_MAXBYTES]; + int n; + + n = (*mb_char2bytes)(c, buf); + + /* When "c" is 0x100, 0x200, etc. we don't want to insert a NUL byte. + * Happens for CTRL-Vu9900. */ + if (buf[0] == 0) + buf[0] = '\n'; + + ins_char_bytes(buf, n); +} + + void +ins_char_bytes(buf, charlen) + char_u *buf; + int charlen; +{ + int c = buf[0]; + int l, j; +#endif + int newlen; /* nr of bytes inserted */ + int oldlen; /* nr of bytes deleted (0 when not replacing) */ + char_u *p; + char_u *newp; + char_u *oldp; + int linelen; /* length of old line including NUL */ + colnr_T col; + linenr_T lnum = curwin->w_cursor.lnum; + int i; + +#ifdef FEAT_VIRTUALEDIT + /* Break tabs if needed. */ + if (virtual_active() && curwin->w_cursor.coladd > 0) + coladvance_force(getviscol()); +#endif + + col = curwin->w_cursor.col; + oldp = ml_get(lnum); + linelen = (int)STRLEN(oldp) + 1; + + /* The lengths default to the values for when not replacing. */ + oldlen = 0; +#ifdef FEAT_MBYTE + newlen = charlen; +#else + newlen = 1; +#endif + + if (State & REPLACE_FLAG) + { +#ifdef FEAT_VREPLACE + if (State & VREPLACE_FLAG) + { + colnr_T new_vcol = 0; /* init for GCC */ + colnr_T vcol; + int old_list; +#ifndef FEAT_MBYTE + char_u buf[2]; +#endif + + /* + * Disable 'list' temporarily, unless 'cpo' contains the 'L' flag. + * Returns the old value of list, so when finished, + * curwin->w_p_list should be set back to this. + */ + old_list = curwin->w_p_list; + if (old_list && vim_strchr(p_cpo, CPO_LISTWM) == NULL) + curwin->w_p_list = FALSE; + + /* + * In virtual replace mode each character may replace one or more + * characters (zero if it's a TAB). Count the number of bytes to + * be deleted to make room for the new character, counting screen + * cells. May result in adding spaces to fill a gap. + */ + getvcol(curwin, &curwin->w_cursor, NULL, &vcol, NULL); +#ifndef FEAT_MBYTE + buf[0] = c; + buf[1] = NUL; +#endif + new_vcol = vcol + chartabsize(buf, vcol); + while (oldp[col + oldlen] != NUL && vcol < new_vcol) + { + vcol += chartabsize(oldp + col + oldlen, vcol); + /* Don't need to remove a TAB that takes us to the right + * position. */ + if (vcol > new_vcol && oldp[col + oldlen] == TAB) + break; +#ifdef FEAT_MBYTE + oldlen += (*mb_ptr2len_check)(oldp + col + oldlen); +#else + ++oldlen; +#endif + /* Deleted a bit too much, insert spaces. */ + if (vcol > new_vcol) + newlen += vcol - new_vcol; + } + curwin->w_p_list = old_list; + } + else +#endif + if (oldp[col] != NUL) + { + /* normal replace */ +#ifdef FEAT_MBYTE + oldlen = (*mb_ptr2len_check)(oldp + col); +#else + oldlen = 1; +#endif + } + + + /* Push the replaced bytes onto the replace stack, so that they can be + * put back when BS is used. The bytes of a multi-byte character are + * done the other way around, so that the first byte is popped off + * first (it tells the byte length of the character). */ + replace_push(NUL); + for (i = 0; i < oldlen; ++i) + { +#ifdef FEAT_MBYTE + l = (*mb_ptr2len_check)(oldp + col + i) - 1; + for (j = l; j >= 0; --j) + replace_push(oldp[col + i + j]); + i += l; +#else + replace_push(oldp[col + i]); +#endif + } + } + + newp = alloc_check((unsigned)(linelen + newlen - oldlen)); + if (newp == NULL) + return; + + /* Copy bytes before the cursor. */ + if (col > 0) + mch_memmove(newp, oldp, (size_t)col); + + /* Copy bytes after the changed character(s). */ + p = newp + col; + mch_memmove(p + newlen, oldp + col + oldlen, + (size_t)(linelen - col - oldlen)); + + /* Insert or overwrite the new character. */ +#ifdef FEAT_MBYTE + mch_memmove(p, buf, charlen); + i = charlen; +#else + *p = c; + i = 1; +#endif + + /* Fill with spaces when necessary. */ + while (i < newlen) + p[i++] = ' '; + + /* Replace the line in the buffer. */ + ml_replace(lnum, newp, FALSE); + + /* mark the buffer as changed and prepare for displaying */ + changed_bytes(lnum, col); + + /* + * If we're in Insert or Replace mode and 'showmatch' is set, then briefly + * show the match for right parens and braces. + */ + if (p_sm && (State & INSERT) + && msg_silent == 0 +#ifdef FEAT_MBYTE + && charlen == 1 +#endif + ) + showmatch(c); + +#ifdef FEAT_RIGHTLEFT + if (!p_ri || (State & REPLACE_FLAG)) +#endif + { + /* Normal insert: move cursor right */ +#ifdef FEAT_MBYTE + curwin->w_cursor.col += charlen; +#else + ++curwin->w_cursor.col; +#endif + } + /* + * TODO: should try to update w_row here, to avoid recomputing it later. + */ +} + +/* + * Insert a string at the cursor position. + * Note: Does NOT handle Replace mode. + * Caller must have prepared for undo. + */ + void +ins_str(s) + char_u *s; +{ + char_u *oldp, *newp; + int newlen = (int)STRLEN(s); + int oldlen; + colnr_T col; + linenr_T lnum = curwin->w_cursor.lnum; + +#ifdef FEAT_VIRTUALEDIT + if (virtual_active() && curwin->w_cursor.coladd > 0) + coladvance_force(getviscol()); +#endif + + col = curwin->w_cursor.col; + oldp = ml_get(lnum); + oldlen = (int)STRLEN(oldp); + + newp = alloc_check((unsigned)(oldlen + newlen + 1)); + if (newp == NULL) + return; + if (col > 0) + mch_memmove(newp, oldp, (size_t)col); + mch_memmove(newp + col, s, (size_t)newlen); + mch_memmove(newp + col + newlen, oldp + col, (size_t)(oldlen - col + 1)); + ml_replace(lnum, newp, FALSE); + changed_bytes(lnum, col); + curwin->w_cursor.col += newlen; +} + +/* + * Delete one character under the cursor. + * If "fixpos" is TRUE, don't leave the cursor on the NUL after the line. + * Caller must have prepared for undo. + * + * return FAIL for failure, OK otherwise + */ + int +del_char(fixpos) + int fixpos; +{ +#ifdef FEAT_MBYTE + if (has_mbyte) + { + /* Make sure the cursor is at the start of a character. */ + mb_adjust_cursor(); + if (*ml_get_cursor() == NUL) + return FAIL; + return del_chars(1L, fixpos); + } +#endif + return del_bytes(1L, fixpos); +} + +#if defined(FEAT_MBYTE) || defined(PROTO) +/* + * Like del_bytes(), but delete characters instead of bytes. + */ + int +del_chars(count, fixpos) + long count; + int fixpos; +{ + long bytes = 0; + long i; + char_u *p; + int l; + + p = ml_get_cursor(); + for (i = 0; i < count && *p != NUL; ++i) + { + l = (*mb_ptr2len_check)(p); + bytes += l; + p += l; + } + return del_bytes(bytes, fixpos); +} +#endif + +/* + * Delete "count" bytes under the cursor. + * If "fixpos" is TRUE, don't leave the cursor on the NUL after the line. + * Caller must have prepared for undo. + * + * return FAIL for failure, OK otherwise + */ + int +del_bytes(count, fixpos) + long count; + int fixpos; +{ + char_u *oldp, *newp; + colnr_T oldlen; + linenr_T lnum = curwin->w_cursor.lnum; + colnr_T col = curwin->w_cursor.col; + int was_alloced; + long movelen; + + oldp = ml_get(lnum); + oldlen = (int)STRLEN(oldp); + + /* + * Can't do anything when the cursor is on the NUL after the line. + */ + if (col >= oldlen) + return FAIL; + +#ifdef FEAT_MBYTE + /* If 'delcombine' is set and deleting (less than) one character, only + * delete the last combining character. */ + if (p_deco && enc_utf8 && (*mb_ptr2len_check)(oldp + col) <= count) + { + int c1, c2; + int n; + + (void)utfc_ptr2char(oldp + col, &c1, &c2); + if (c1 != NUL) + { + /* Find the last composing char, there can be several. */ + n = col; + do + { + col = n; + count = utf_ptr2len_check(oldp + n); + n += count; + } while (UTF_COMPOSINGLIKE(oldp + col, oldp + n)); + fixpos = 0; + } + } +#endif + + /* + * When count is too big, reduce it. + */ + movelen = (long)oldlen - (long)col - count + 1; /* includes trailing NUL */ + if (movelen <= 1) + { + /* + * If we just took off the last character of a non-blank line, and + * fixpos is TRUE, we don't want to end up positioned at the NUL. + */ + if (col > 0 && fixpos) + { + --curwin->w_cursor.col; +#ifdef FEAT_VIRTUALEDIT + curwin->w_cursor.coladd = 0; +#endif +#ifdef FEAT_MBYTE + if (has_mbyte) + curwin->w_cursor.col -= + (*mb_head_off)(oldp, oldp + curwin->w_cursor.col); +#endif + } + count = oldlen - col; + movelen = 1; + } + + /* + * If the old line has been allocated the deletion can be done in the + * existing line. Otherwise a new line has to be allocated + */ + was_alloced = ml_line_alloced(); /* check if oldp was allocated */ +#ifdef FEAT_NETBEANS_INTG + if (was_alloced && usingNetbeans) + netbeans_removed(curbuf, lnum, col, count); + /* else is handled by ml_replace() */ +#endif + if (was_alloced) + newp = oldp; /* use same allocated memory */ + else + { /* need to allocate a new line */ + newp = alloc((unsigned)(oldlen + 1 - count)); + if (newp == NULL) + return FAIL; + mch_memmove(newp, oldp, (size_t)col); + } + mch_memmove(newp + col, oldp + col + count, (size_t)movelen); + if (!was_alloced) + ml_replace(lnum, newp, FALSE); + + /* mark the buffer as changed and prepare for displaying */ + changed_bytes(lnum, curwin->w_cursor.col); + + return OK; +} + +/* + * Delete from cursor to end of line. + * Caller must have prepared for undo. + * + * return FAIL for failure, OK otherwise + */ + int +truncate_line(fixpos) + int fixpos; /* if TRUE fix the cursor position when done */ +{ + char_u *newp; + linenr_T lnum = curwin->w_cursor.lnum; + colnr_T col = curwin->w_cursor.col; + + if (col == 0) + newp = vim_strsave((char_u *)""); + else + newp = vim_strnsave(ml_get(lnum), col); + + if (newp == NULL) + return FAIL; + + ml_replace(lnum, newp, FALSE); + + /* mark the buffer as changed and prepare for displaying */ + changed_bytes(lnum, curwin->w_cursor.col); + + /* + * If "fixpos" is TRUE we don't want to end up positioned at the NUL. + */ + if (fixpos && curwin->w_cursor.col > 0) + --curwin->w_cursor.col; + + return OK; +} + +/* + * Delete "nlines" lines at the cursor. + * Saves the lines for undo first if "undo" is TRUE. + */ + void +del_lines(nlines, undo) + long nlines; /* number of lines to delete */ + int undo; /* if TRUE, prepare for undo */ +{ + long n; + + if (nlines <= 0) + return; + + /* save the deleted lines for undo */ + if (undo && u_savedel(curwin->w_cursor.lnum, nlines) == FAIL) + return; + + for (n = 0; n < nlines; ) + { + if (curbuf->b_ml.ml_flags & ML_EMPTY) /* nothing to delete */ + break; + + ml_delete(curwin->w_cursor.lnum, TRUE); + ++n; + + /* If we delete the last line in the file, stop */ + if (curwin->w_cursor.lnum > curbuf->b_ml.ml_line_count) + break; + } + /* adjust marks, mark the buffer as changed and prepare for displaying */ + deleted_lines_mark(curwin->w_cursor.lnum, n); + + curwin->w_cursor.col = 0; + check_cursor_lnum(); +} + + int +gchar_pos(pos) + pos_T *pos; +{ + char_u *ptr = ml_get_pos(pos); + +#ifdef FEAT_MBYTE + if (has_mbyte) + return (*mb_ptr2char)(ptr); +#endif + return (int)*ptr; +} + + int +gchar_cursor() +{ +#ifdef FEAT_MBYTE + if (has_mbyte) + return (*mb_ptr2char)(ml_get_cursor()); +#endif + return (int)*ml_get_cursor(); +} + +/* + * Write a character at the current cursor position. + * It is directly written into the block. + */ + void +pchar_cursor(c) + int c; +{ + *(ml_get_buf(curbuf, curwin->w_cursor.lnum, TRUE) + + curwin->w_cursor.col) = c; +} + +#if 0 /* not used */ +/* + * Put *pos at end of current buffer + */ + void +goto_endofbuf(pos) + pos_T *pos; +{ + char_u *p; + + pos->lnum = curbuf->b_ml.ml_line_count; + pos->col = 0; + p = ml_get(pos->lnum); + while (*p++) + ++pos->col; +} +#endif + +/* + * When extra == 0: Return TRUE if the cursor is before or on the first + * non-blank in the line. + * When extra == 1: Return TRUE if the cursor is before the first non-blank in + * the line. + */ + int +inindent(extra) + int extra; +{ + char_u *ptr; + colnr_T col; + + for (col = 0, ptr = ml_get_curline(); vim_iswhite(*ptr); ++col) + ++ptr; + if (col >= curwin->w_cursor.col + extra) + return TRUE; + else + return FALSE; +} + +/* + * Skip to next part of an option argument: Skip space and comma. + */ + char_u * +skip_to_option_part(p) + char_u *p; +{ + if (*p == ',') + ++p; + while (*p == ' ') + ++p; + return p; +} + +/* + * changed() is called when something in the current buffer is changed. + * + * Most often called through changed_bytes() and changed_lines(), which also + * mark the area of the display to be redrawn. + */ + void +changed() +{ +#if defined(FEAT_XIM) && defined(FEAT_GUI_GTK) + /* The text of the preediting area is inserted, but this doesn't + * mean a change of the buffer yet. That is delayed until the + * text is committed. (this means preedit becomes empty) */ + if (im_is_preediting() && !xim_changed_while_preediting) + return; + xim_changed_while_preediting = FALSE; +#endif + + if (!curbuf->b_changed) + { + int save_msg_scroll = msg_scroll; + + change_warning(0); + /* Create a swap file if that is wanted. + * Don't do this for "nofile" and "nowrite" buffer types. */ + if (curbuf->b_may_swap +#ifdef FEAT_QUICKFIX + && !bt_dontwrite(curbuf) +#endif + ) + { + ml_open_file(curbuf); + + /* The ml_open_file() can cause an ATTENTION message. + * Wait two seconds, to make sure the user reads this unexpected + * message. Since we could be anywhere, call wait_return() now, + * and don't let the emsg() set msg_scroll. */ + if (need_wait_return && emsg_silent == 0) + { + out_flush(); + ui_delay(2000L, TRUE); + wait_return(TRUE); + msg_scroll = save_msg_scroll; + } + } + curbuf->b_changed = TRUE; + ml_setdirty(curbuf, TRUE); +#ifdef FEAT_WINDOWS + check_status(curbuf); +#endif +#ifdef FEAT_TITLE + need_maketitle = TRUE; /* set window title later */ +#endif + } + ++curbuf->b_changedtick; + ++global_changedtick; +} + +static void changedOneline __ARGS((linenr_T lnum)); +static void changed_common __ARGS((linenr_T lnum, colnr_T col, linenr_T lnume, long xtra)); + +/* + * Changed bytes within a single line for the current buffer. + * - marks the windows on this buffer to be redisplayed + * - marks the buffer changed by calling changed() + * - invalidates cached values + */ + void +changed_bytes(lnum, col) + linenr_T lnum; + colnr_T col; +{ + changedOneline(lnum); + changed_common(lnum, col, lnum + 1, 0L); +} + + static void +changedOneline(lnum) + linenr_T lnum; +{ + if (curbuf->b_mod_set) + { + /* find the maximum area that must be redisplayed */ + if (lnum < curbuf->b_mod_top) + curbuf->b_mod_top = lnum; + else if (lnum >= curbuf->b_mod_bot) + curbuf->b_mod_bot = lnum + 1; + } + else + { + /* set the area that must be redisplayed to one line */ + curbuf->b_mod_set = TRUE; + curbuf->b_mod_top = lnum; + curbuf->b_mod_bot = lnum + 1; + curbuf->b_mod_xlines = 0; + } +} + +/* + * Appended "count" lines below line "lnum" in the current buffer. + * Must be called AFTER the change and after mark_adjust(). + * Takes care of marking the buffer to be redrawn and sets the changed flag. + */ + void +appended_lines(lnum, count) + linenr_T lnum; + long count; +{ + changed_lines(lnum + 1, 0, lnum + 1, count); +} + +/* + * Like appended_lines(), but adjust marks first. + */ + void +appended_lines_mark(lnum, count) + linenr_T lnum; + long count; +{ + mark_adjust(lnum + 1, (linenr_T)MAXLNUM, count, 0L); + changed_lines(lnum + 1, 0, lnum + 1, count); +} + +/* + * Deleted "count" lines at line "lnum" in the current buffer. + * Must be called AFTER the change and after mark_adjust(). + * Takes care of marking the buffer to be redrawn and sets the changed flag. + */ + void +deleted_lines(lnum, count) + linenr_T lnum; + long count; +{ + changed_lines(lnum, 0, lnum + count, -count); +} + +/* + * Like deleted_lines(), but adjust marks first. + */ + void +deleted_lines_mark(lnum, count) + linenr_T lnum; + long count; +{ + mark_adjust(lnum, (linenr_T)(lnum + count - 1), (long)MAXLNUM, -count); + changed_lines(lnum, 0, lnum + count, -count); +} + +/* + * Changed lines for the current buffer. + * Must be called AFTER the change and after mark_adjust(). + * - mark the buffer changed by calling changed() + * - mark the windows on this buffer to be redisplayed + * - invalidate cached values + * "lnum" is the first line that needs displaying, "lnume" the first line + * below the changed lines (BEFORE the change). + * When only inserting lines, "lnum" and "lnume" are equal. + * Takes care of calling changed() and updating b_mod_*. + */ + void +changed_lines(lnum, col, lnume, xtra) + linenr_T lnum; /* first line with change */ + colnr_T col; /* column in first line with change */ + linenr_T lnume; /* line below last changed line */ + long xtra; /* number of extra lines (negative when deleting) */ +{ + if (curbuf->b_mod_set) + { + /* find the maximum area that must be redisplayed */ + if (lnum < curbuf->b_mod_top) + curbuf->b_mod_top = lnum; + if (lnum < curbuf->b_mod_bot) + { + /* adjust old bot position for xtra lines */ + curbuf->b_mod_bot += xtra; + if (curbuf->b_mod_bot < lnum) + curbuf->b_mod_bot = lnum; + } + if (lnume + xtra > curbuf->b_mod_bot) + curbuf->b_mod_bot = lnume + xtra; + curbuf->b_mod_xlines += xtra; + } + else + { + /* set the area that must be redisplayed */ + curbuf->b_mod_set = TRUE; + curbuf->b_mod_top = lnum; + curbuf->b_mod_bot = lnume + xtra; + curbuf->b_mod_xlines = xtra; + } + + changed_common(lnum, col, lnume, xtra); +} + + static void +changed_common(lnum, col, lnume, xtra) + linenr_T lnum; + colnr_T col; + linenr_T lnume; + long xtra; +{ + win_T *wp; + int i; +#ifdef FEAT_JUMPLIST + int cols; + pos_T *p; + int add; +#endif + + /* mark the buffer as modified */ + changed(); + + /* set the '. mark */ + if (!cmdmod.keepjumps) + { + curbuf->b_last_change.lnum = lnum; + curbuf->b_last_change.col = col; + +#ifdef FEAT_JUMPLIST + /* Create a new entry if a new undo-able change was started or we + * don't have an entry yet. */ + if (curbuf->b_new_change || curbuf->b_changelistlen == 0) + { + if (curbuf->b_changelistlen == 0) + add = TRUE; + else + { + /* Don't create a new entry when the line number is the same + * as the last one and the column is not too far away. Avoids + * creating many entries for typing "xxxxx". */ + p = &curbuf->b_changelist[curbuf->b_changelistlen - 1]; + if (p->lnum != lnum) + add = TRUE; + else + { + cols = comp_textwidth(FALSE); + if (cols == 0) + cols = 79; + add = (p->col + cols < col || col + cols < p->col); + } + } + if (add) + { + /* This is the first of a new sequence of undo-able changes + * and it's at some distance of the last change. Use a new + * position in the changelist. */ + curbuf->b_new_change = FALSE; + + if (curbuf->b_changelistlen == JUMPLISTSIZE) + { + /* changelist is full: remove oldest entry */ + curbuf->b_changelistlen = JUMPLISTSIZE - 1; + mch_memmove(curbuf->b_changelist, curbuf->b_changelist + 1, + sizeof(pos_T) * (JUMPLISTSIZE - 1)); + FOR_ALL_WINDOWS(wp) + { + /* Correct position in changelist for other windows on + * this buffer. */ + if (wp->w_buffer == curbuf && wp->w_changelistidx > 0) + --wp->w_changelistidx; + } + } + FOR_ALL_WINDOWS(wp) + { + /* For other windows, if the position in the changelist is + * at the end it stays at the end. */ + if (wp->w_buffer == curbuf + && wp->w_changelistidx == curbuf->b_changelistlen) + ++wp->w_changelistidx; + } + ++curbuf->b_changelistlen; + } + } + curbuf->b_changelist[curbuf->b_changelistlen - 1] = + curbuf->b_last_change; + /* The current window is always after the last change, so that "g," + * takes you back to it. */ + curwin->w_changelistidx = curbuf->b_changelistlen; +#endif + } + + FOR_ALL_WINDOWS(wp) + { + if (wp->w_buffer == curbuf) + { + /* Mark this window to be redrawn later. */ + if (wp->w_redr_type < VALID) + wp->w_redr_type = VALID; + + /* Check if a change in the buffer has invalidated the cached + * values for the cursor. */ +#ifdef FEAT_FOLDING + /* + * Update the folds for this window. Can't postpone this, because + * a following operator might work on the whole fold: ">>dd". + */ + foldUpdate(wp, lnum, lnume + xtra - 1); + + /* The change may cause lines above or below the change to become + * included in a fold. Set lnum/lnume to the first/last line that + * might be displayed differently. + * Set w_cline_folded here as an efficient way to update it when + * inserting lines just above a closed fold. */ + i = hasFoldingWin(wp, lnum, &lnum, NULL, FALSE, NULL); + if (wp->w_cursor.lnum == lnum) + wp->w_cline_folded = i; + i = hasFoldingWin(wp, lnume, NULL, &lnume, FALSE, NULL); + if (wp->w_cursor.lnum == lnume) + wp->w_cline_folded = i; + + /* If the changed line is in a range of previously folded lines, + * compare with the first line in that range. */ + if (wp->w_cursor.lnum <= lnum) + { + i = find_wl_entry(wp, lnum); + if (i >= 0 && wp->w_cursor.lnum > wp->w_lines[i].wl_lnum) + changed_line_abv_curs_win(wp); + } +#endif + + if (wp->w_cursor.lnum > lnum) + changed_line_abv_curs_win(wp); + else if (wp->w_cursor.lnum == lnum && wp->w_cursor.col >= col) + changed_cline_bef_curs_win(wp); + if (wp->w_botline >= lnum) + { + /* Assume that botline doesn't change (inserted lines make + * other lines scroll down below botline). */ + approximate_botline_win(wp); + } + + /* Check if any w_lines[] entries have become invalid. + * For entries below the change: Correct the lnums for + * inserted/deleted lines. Makes it possible to stop displaying + * after the change. */ + for (i = 0; i < wp->w_lines_valid; ++i) + if (wp->w_lines[i].wl_valid) + { + if (wp->w_lines[i].wl_lnum >= lnum) + { + if (wp->w_lines[i].wl_lnum < lnume) + { + /* line included in change */ + wp->w_lines[i].wl_valid = FALSE; + } + else if (xtra != 0) + { + /* line below change */ + wp->w_lines[i].wl_lnum += xtra; +#ifdef FEAT_FOLDING + wp->w_lines[i].wl_lastlnum += xtra; +#endif + } + } +#ifdef FEAT_FOLDING + else if (wp->w_lines[i].wl_lastlnum >= lnum) + { + /* change somewhere inside this range of folded lines, + * may need to be redrawn */ + wp->w_lines[i].wl_valid = FALSE; + } +#endif + } + } + } + + /* Call update_screen() later, which checks out what needs to be redrawn, + * since it notices b_mod_set and then uses b_mod_*. */ + if (must_redraw < VALID) + must_redraw = VALID; +} + +/* + * unchanged() is called when the changed flag must be reset for buffer 'buf' + */ + void +unchanged(buf, ff) + buf_T *buf; + int ff; /* also reset 'fileformat' */ +{ + if (buf->b_changed || (ff && file_ff_differs(buf))) + { + buf->b_changed = 0; + ml_setdirty(buf, FALSE); + if (ff) + save_file_ff(buf); +#ifdef FEAT_WINDOWS + check_status(buf); +#endif +#ifdef FEAT_TITLE + need_maketitle = TRUE; /* set window title later */ +#endif + } + ++buf->b_changedtick; + ++global_changedtick; +#ifdef FEAT_NETBEANS_INTG + netbeans_unmodified(buf); +#endif +} + +#if defined(FEAT_WINDOWS) || defined(PROTO) +/* + * check_status: called when the status bars for the buffer 'buf' + * need to be updated + */ + void +check_status(buf) + buf_T *buf; +{ + win_T *wp; + + for (wp = firstwin; wp != NULL; wp = wp->w_next) + if (wp->w_buffer == buf && wp->w_status_height) + { + wp->w_redr_status = TRUE; + if (must_redraw < VALID) + must_redraw = VALID; + } +} +#endif + +/* + * If the file is readonly, give a warning message with the first change. + * Don't do this for autocommands. + * Don't use emsg(), because it flushes the macro buffer. + * If we have undone all changes b_changed will be FALSE, but b_did_warn + * will be TRUE. + */ + void +change_warning(col) + int col; /* column for message; non-zero when in insert + mode and 'showmode' is on */ +{ + if (curbuf->b_did_warn == FALSE + && curbufIsChanged() == 0 +#ifdef FEAT_AUTOCMD + && !autocmd_busy +#endif + && curbuf->b_p_ro) + { +#ifdef FEAT_AUTOCMD + apply_autocmds(EVENT_FILECHANGEDRO, NULL, NULL, FALSE, curbuf); + if (!curbuf->b_p_ro) + return; +#endif + /* + * Do what msg() does, but with a column offset if the warning should + * be after the mode message. + */ + msg_start(); + if (msg_row == Rows - 1) + msg_col = col; + MSG_PUTS_ATTR(_("W10: Warning: Changing a readonly file"), + hl_attr(HLF_W) | MSG_HIST); + msg_clr_eos(); + (void)msg_end(); + if (msg_silent == 0 && !silent_mode) + { + out_flush(); + ui_delay(1000L, TRUE); /* give the user time to think about it */ + } + curbuf->b_did_warn = TRUE; + redraw_cmdline = FALSE; /* don't redraw and erase the message */ + if (msg_row < Rows - 1) + showmode(); + } +} + +/* + * Ask for a reply from the user, a 'y' or a 'n'. + * No other characters are accepted, the message is repeated until a valid + * reply is entered or CTRL-C is hit. + * If direct is TRUE, don't use vgetc() but ui_inchar(), don't get characters + * from any buffers but directly from the user. + * + * return the 'y' or 'n' + */ + int +ask_yesno(str, direct) + char_u *str; + int direct; +{ + int r = ' '; + int save_State = State; + + if (exiting) /* put terminal in raw mode for this question */ + settmode(TMODE_RAW); + ++no_wait_return; +#ifdef USE_ON_FLY_SCROLL + dont_scroll = TRUE; /* disallow scrolling here */ +#endif + State = CONFIRM; /* mouse behaves like with :confirm */ +#ifdef FEAT_MOUSE + setmouse(); /* disables mouse for xterm */ +#endif + ++no_mapping; + ++allow_keys; /* no mapping here, but recognize keys */ + + while (r != 'y' && r != 'n') + { + /* same highlighting as for wait_return */ + smsg_attr(hl_attr(HLF_R), (char_u *)"%s (y/n)?", str); + if (direct) + r = get_keystroke(); + else + r = safe_vgetc(); + if (r == Ctrl_C || r == ESC) + r = 'n'; + msg_putchar(r); /* show what you typed */ + out_flush(); + } + --no_wait_return; + State = save_State; +#ifdef FEAT_MOUSE + setmouse(); +#endif + --no_mapping; + --allow_keys; + + return r; +} + +/* + * Get a key stroke directly from the user. + * Ignores mouse clicks and scrollbar events, except a click for the left + * button (used at the more prompt). + * Doesn't use vgetc(), because it syncs undo and eats mapped characters. + * Disadvantage: typeahead is ignored. + * Translates the interrupt character for unix to ESC. + */ + int +get_keystroke() +{ +#define CBUFLEN 151 + char_u buf[CBUFLEN]; + int len = 0; + int n; + int save_mapped_ctrl_c = mapped_ctrl_c; + + mapped_ctrl_c = FALSE; /* mappings are not used here */ + for (;;) + { + cursor_on(); + out_flush(); + + /* First time: blocking wait. Second time: wait up to 100ms for a + * terminal code to complete. Leave some room for check_termcode() to + * insert a key code into (max 5 chars plus NUL). And + * fix_input_buffer() can triple the number of bytes. */ + n = ui_inchar(buf + len, (CBUFLEN - 6 - len) / 3, + len == 0 ? -1L : 100L, 0); + if (n > 0) + { + /* Replace zero and CSI by a special key code. */ + n = fix_input_buffer(buf + len, n, FALSE); + len += n; + } + + /* incomplete termcode: get more characters */ + if ((n = check_termcode(1, buf, len)) < 0) + continue; + /* found a termcode: adjust length */ + if (n > 0) + len = n; + if (len == 0) /* nothing typed yet */ + continue; + + /* Handle modifier and/or special key code. */ + n = buf[0]; + if (n == K_SPECIAL) + { + n = TO_SPECIAL(buf[1], buf[2]); + if (buf[1] == KS_MODIFIER + || n == K_IGNORE +#ifdef FEAT_MOUSE + || n == K_LEFTMOUSE_NM + || n == K_LEFTDRAG + || n == K_LEFTRELEASE + || n == K_LEFTRELEASE_NM + || n == K_MIDDLEMOUSE + || n == K_MIDDLEDRAG + || n == K_MIDDLERELEASE + || n == K_RIGHTMOUSE + || n == K_RIGHTDRAG + || n == K_RIGHTRELEASE + || n == K_MOUSEDOWN + || n == K_MOUSEUP + || n == K_X1MOUSE + || n == K_X1DRAG + || n == K_X1RELEASE + || n == K_X2MOUSE + || n == K_X2DRAG + || n == K_X2RELEASE +# ifdef FEAT_GUI + || n == K_VER_SCROLLBAR + || n == K_HOR_SCROLLBAR +# endif +#endif + ) + { + if (buf[1] == KS_MODIFIER) + mod_mask = buf[2]; + len -= 3; + if (len > 0) + mch_memmove(buf, buf + 3, (size_t)len); + continue; + } + } +#ifdef FEAT_MBYTE + if (has_mbyte) + { + if (MB_BYTE2LEN(n) > len) + continue; /* more bytes to get */ + buf[len >= CBUFLEN ? CBUFLEN - 1 : len] = NUL; + n = (*mb_ptr2char)(buf); + } +#endif +#ifdef UNIX + if (n == intr_char) + n = ESC; +#endif + break; + } + + mapped_ctrl_c = save_mapped_ctrl_c; + return n; +} + +/* + * get a number from the user + */ + int +get_number(colon) + int colon; /* allow colon to abort */ +{ + int n = 0; + int c; + + /* When not printing messages, the user won't know what to type, return a + * zero (as if CR was hit). */ + if (msg_silent != 0) + return 0; + +#ifdef USE_ON_FLY_SCROLL + dont_scroll = TRUE; /* disallow scrolling here */ +#endif + ++no_mapping; + ++allow_keys; /* no mapping here, but recognize keys */ + for (;;) + { + windgoto(msg_row, msg_col); + c = safe_vgetc(); + if (VIM_ISDIGIT(c)) + { + n = n * 10 + c - '0'; + msg_putchar(c); + } + else if (c == K_DEL || c == K_KDEL || c == K_BS || c == Ctrl_H) + { + n /= 10; + MSG_PUTS("\b \b"); + } + else if (n == 0 && c == ':' && colon) + { + stuffcharReadbuff(':'); + if (!exmode_active) + cmdline_row = msg_row; + skip_redraw = TRUE; /* skip redraw once */ + do_redraw = FALSE; + break; + } + else if (c == CAR || c == NL || c == Ctrl_C || c == ESC) + break; + } + --no_mapping; + --allow_keys; + return n; +} + + void +msgmore(n) + long n; +{ + long pn; + + if (global_busy /* no messages now, wait until global is finished */ + || keep_msg != NULL /* there is a message already, skip this one */ + || !messaging()) /* 'lazyredraw' set, don't do messages now */ + return; + + if (n > 0) + pn = n; + else + pn = -n; + + if (pn > p_report) + { + if (pn == 1) + { + if (n > 0) + STRCPY(msg_buf, _("1 more line")); + else + STRCPY(msg_buf, _("1 line less")); + } + else + { + if (n > 0) + sprintf((char *)msg_buf, _("%ld more lines"), pn); + else + sprintf((char *)msg_buf, _("%ld fewer lines"), pn); + } + if (got_int) + STRCAT(msg_buf, _(" (Interrupted)")); + if (msg(msg_buf)) + { + set_keep_msg(msg_buf); + keep_msg_attr = 0; + } + } +} + +/* + * flush map and typeahead buffers and give a warning for an error + */ + void +beep_flush() +{ + if (emsg_silent == 0) + { + flush_buffers(FALSE); + vim_beep(); + } +} + +/* + * give a warning for an error + */ + void +vim_beep() +{ + if (emsg_silent == 0) + { + if (p_vb +#ifdef FEAT_GUI + /* While the GUI is starting up the termcap is set for the GUI + * but the output still goes to a terminal. */ + && !(gui.in_use && gui.starting) +#endif + ) + { + out_str(T_VB); + } + else + { +#ifdef MSDOS + /* + * The number of beeps outputted is reduced to avoid having to wait + * for all the beeps to finish. This is only a problem on systems + * where the beeps don't overlap. + */ + if (beep_count == 0 || beep_count == 10) + { + out_char(BELL); + beep_count = 1; + } + else + ++beep_count; +#else + out_char(BELL); +#endif + } + } +} + +/* + * To get the "real" home directory: + * - get value of $HOME + * For Unix: + * - go to that directory + * - do mch_dirname() to get the real name of that directory. + * This also works with mounts and links. + * Don't do this for MS-DOS, it will change the "current dir" for a drive. + */ +static char_u *homedir = NULL; + + void +init_homedir() +{ + char_u *var; + +#ifdef VMS + var = mch_getenv((char_u *)"SYS$LOGIN"); +#else + var = mch_getenv((char_u *)"HOME"); +#endif + + if (var != NULL && *var == NUL) /* empty is same as not set */ + var = NULL; + +#ifdef WIN3264 + /* + * Weird but true: $HOME may contain an indirect reference to another + * variable, esp. "%USERPROFILE%". Happens when $USERPROFILE isn't set + * when $HOME is being set. + */ + if (var != NULL && *var == '%') + { + char_u *p; + char_u *exp; + + p = vim_strchr(var + 1, '%'); + if (p != NULL) + { + STRNCPY(NameBuff, var + 1, p - (var + 1)); + NameBuff[p - (var + 1)] = NUL; + exp = mch_getenv(NameBuff); + if (exp != NULL && *exp != NUL + && STRLEN(exp) + STRLEN(p) < MAXPATHL) + { + sprintf((char *)NameBuff, "%s%s", exp, p + 1); + var = NameBuff; + /* Also set $HOME, it's needed for _viminfo. */ + vim_setenv((char_u *)"HOME", NameBuff); + } + } + } + + /* + * Typically, $HOME is not defined on Windows, unless the user has + * specifically defined it for Vim's sake. However, on Windows NT + * platforms, $HOMEDRIVE and $HOMEPATH are automatically defined for + * each user. Try constructing $HOME from these. + */ + if (var == NULL) + { + char_u *homedrive, *homepath; + + homedrive = mch_getenv((char_u *)"HOMEDRIVE"); + homepath = mch_getenv((char_u *)"HOMEPATH"); + if (homedrive != NULL && homepath != NULL + && STRLEN(homedrive) + STRLEN(homepath) < MAXPATHL) + { + sprintf((char *)NameBuff, "%s%s", homedrive, homepath); + if (NameBuff[0] != NUL) + { + var = NameBuff; + /* Also set $HOME, it's needed for _viminfo. */ + vim_setenv((char_u *)"HOME", NameBuff); + } + } + } +#endif + +#if defined(OS2) || defined(MSDOS) || defined(MSWIN) + /* + * Default home dir is C:/ + * Best assumption we can make in such a situation. + */ + if (var == NULL) + var = "C:/"; +#endif + if (var != NULL) + { +#ifdef UNIX + /* + * Change to the directory and get the actual path. This resolves + * links. Don't do it when we can't return. + */ + if (mch_dirname(NameBuff, MAXPATHL) == OK + && mch_chdir((char *)NameBuff) == 0) + { + if (!mch_chdir((char *)var) && mch_dirname(IObuff, IOSIZE) == OK) + var = IObuff; + if (mch_chdir((char *)NameBuff) != 0) + EMSG(_(e_prev_dir)); + } +#endif + homedir = vim_strsave(var); + } +} + +/* + * Expand environment variable with path name. + * "~/" is also expanded, using $HOME. For Unix "~user/" is expanded. + * Skips over "\ ", "\~" and "\$". + * If anything fails no expansion is done and dst equals src. + */ + void +expand_env(src, dst, dstlen) + char_u *src; /* input string e.g. "$HOME/vim.hlp" */ + char_u *dst; /* where to put the result */ + int dstlen; /* maximum length of the result */ +{ + expand_env_esc(src, dst, dstlen, FALSE); +} + + void +expand_env_esc(src, dst, dstlen, esc) + char_u *src; /* input string e.g. "$HOME/vim.hlp" */ + char_u *dst; /* where to put the result */ + int dstlen; /* maximum length of the result */ + int esc; /* escape spaces in expanded variables */ +{ + char_u *tail; + int c; + char_u *var; + int copy_char; + int mustfree; /* var was allocated, need to free it later */ + int at_start = TRUE; /* at start of a name */ + + src = skipwhite(src); + --dstlen; /* leave one char space for "\," */ + while (*src && dstlen > 0) + { + copy_char = TRUE; + if (*src == '$' +#if defined(MSDOS) || defined(MSWIN) || defined(OS2) + || *src == '%' +#endif + || (*src == '~' && at_start)) + { + mustfree = FALSE; + + /* + * The variable name is copied into dst temporarily, because it may + * be a string in read-only memory and a NUL needs to be appended. + */ + if (*src != '~') /* environment var */ + { + tail = src + 1; + var = dst; + c = dstlen - 1; + +#ifdef UNIX + /* Unix has ${var-name} type environment vars */ + if (*tail == '{' && !vim_isIDc('{')) + { + tail++; /* ignore '{' */ + while (c-- > 0 && *tail && *tail != '}') + *var++ = *tail++; + } + else +#endif + { + while (c-- > 0 && *tail != NUL && ((vim_isIDc(*tail)) +#if defined(MSDOS) || defined(MSWIN) || defined(OS2) + || (*src == '%' && *tail != '%') +#endif + )) + { +#ifdef OS2 /* env vars only in uppercase */ + *var++ = TOUPPER_LOC(*tail); + tail++; /* toupper() may be a macro! */ +#else + *var++ = *tail++; +#endif + } + } + +#if defined(MSDOS) || defined(MSWIN) || defined(OS2) || defined(UNIX) +# ifdef UNIX + if (src[1] == '{' && *tail != '}') +# else + if (*src == '%' && *tail != '%') +# endif + var = NULL; + else + { +# ifdef UNIX + if (src[1] == '{') +# else + if (*src == '%') +#endif + ++tail; +#endif + *var = NUL; + var = vim_getenv(dst, &mustfree); +#if defined(MSDOS) || defined(MSWIN) || defined(OS2) || defined(UNIX) + } +#endif + } + /* home directory */ + else if ( src[1] == NUL + || vim_ispathsep(src[1]) + || vim_strchr((char_u *)" ,\t\n", src[1]) != NULL) + { + var = homedir; + tail = src + 1; + } + else /* user directory */ + { +#if defined(UNIX) || (defined(VMS) && defined(USER_HOME)) + /* + * Copy ~user to dst[], so we can put a NUL after it. + */ + tail = src; + var = dst; + c = dstlen - 1; + while ( c-- > 0 + && *tail + && vim_isfilec(*tail) + && !vim_ispathsep(*tail)) + *var++ = *tail++; + *var = NUL; +# ifdef UNIX + /* + * If the system supports getpwnam(), use it. + * Otherwise, or if getpwnam() fails, the shell is used to + * expand ~user. This is slower and may fail if the shell + * does not support ~user (old versions of /bin/sh). + */ +# if defined(HAVE_GETPWNAM) && defined(HAVE_PWD_H) + { + struct passwd *pw; + + pw = getpwnam((char *)dst + 1); + if (pw != NULL) + var = (char_u *)pw->pw_dir; + else + var = NULL; + } + if (var == NULL) +# endif + { + expand_T xpc; + + ExpandInit(&xpc); + xpc.xp_context = EXPAND_FILES; + var = ExpandOne(&xpc, dst, NULL, + WILD_ADD_SLASH|WILD_SILENT, WILD_EXPAND_FREE); + ExpandCleanup(&xpc); + mustfree = TRUE; + } + +# else /* !UNIX, thus VMS */ + /* + * USER_HOME is a comma-separated list of + * directories to search for the user account in. + */ + { + char_u test[MAXPATHL], paths[MAXPATHL]; + char_u *path, *next_path, *ptr; + struct stat st; + + STRCPY(paths, USER_HOME); + next_path = paths; + while (*next_path) + { + for (path = next_path; *next_path && *next_path != ','; + next_path++); + if (*next_path) + *next_path++ = NUL; + STRCPY(test, path); + STRCAT(test, "/"); + STRCAT(test, dst + 1); + if (mch_stat(test, &st) == 0) + { + var = alloc(STRLEN(test) + 1); + STRCPY(var, test); + mustfree = TRUE; + break; + } + } + } +# endif /* UNIX */ +#else + /* cannot expand user's home directory, so don't try */ + var = NULL; + tail = (char_u *)""; /* for gcc */ +#endif /* UNIX || VMS */ + } + +#ifdef BACKSLASH_IN_FILENAME + /* If 'shellslash' is set change backslashes to forward slashes. + * Can't use slash_adjust(), p_ssl may be set temporarily. */ + if (p_ssl && var != NULL && vim_strchr(var, '\\') != NULL) + { + char_u *p = vim_strsave(var); + + if (p != NULL) + { + if (mustfree) + vim_free(var); + var = p; + mustfree = TRUE; + forward_slash(var); + } + } +#endif + + /* If "var" contains white space, escape it with a backslash. + * Required for ":e ~/tt" when $HOME includes a space. */ + if (esc && var != NULL && vim_strpbrk(var, (char_u *)" \t") != NULL) + { + char_u *p = vim_strsave_escaped(var, (char_u *)" \t"); + + if (p != NULL) + { + if (mustfree) + vim_free(var); + var = p; + mustfree = TRUE; + } + } + + if (var != NULL && *var != NUL + && (STRLEN(var) + STRLEN(tail) + 1 < (unsigned)dstlen)) + { + STRCPY(dst, var); + dstlen -= (int)STRLEN(var); + dst += STRLEN(var); + /* if var[] ends in a path separator and tail[] starts + * with it, skip a character */ + if (*var != NUL && vim_ispathsep(dst[-1]) +#if defined(BACKSLASH_IN_FILENAME) || defined(AMIGA) + && dst[-1] != ':' +#endif + && vim_ispathsep(*tail)) + ++tail; + src = tail; + copy_char = FALSE; + } + if (mustfree) + vim_free(var); + } + + if (copy_char) /* copy at least one char */ + { + /* + * Recogize the start of a new name, for '~'. + */ + at_start = FALSE; + if (src[0] == '\\' && src[1] != NUL) + { + *dst++ = *src++; + --dstlen; + } + else if (src[0] == ' ' || src[0] == ',') + at_start = TRUE; + *dst++ = *src++; + --dstlen; + } + } + *dst = NUL; +} + +/* + * Vim's version of getenv(). + * Special handling of $HOME, $VIM and $VIMRUNTIME. + */ + char_u * +vim_getenv(name, mustfree) + char_u *name; + int *mustfree; /* set to TRUE when returned is allocated */ +{ + char_u *p; + char_u *pend; + int vimruntime; + +#if defined(OS2) || defined(MSDOS) || defined(MSWIN) + /* use "C:/" when $HOME is not set */ + if (STRCMP(name, "HOME") == 0) + return homedir; +#endif + + p = mch_getenv(name); + if (p != NULL && *p == NUL) /* empty is the same as not set */ + p = NULL; + + if (p != NULL) + return p; + + vimruntime = (STRCMP(name, "VIMRUNTIME") == 0); + if (!vimruntime && STRCMP(name, "VIM") != 0) + return NULL; + + /* + * When expanding $VIMRUNTIME fails, try using $VIM/vim<version> or $VIM. + * Don't do this when default_vimruntime_dir is non-empty. + */ + if (vimruntime +#ifdef HAVE_PATHDEF + && *default_vimruntime_dir == NUL +#endif + ) + { + p = mch_getenv((char_u *)"VIM"); + if (p != NULL && *p == NUL) /* empty is the same as not set */ + p = NULL; + if (p != NULL) + { + p = vim_version_dir(p); + if (p != NULL) + *mustfree = TRUE; + else + p = mch_getenv((char_u *)"VIM"); + } + } + + /* + * When expanding $VIM or $VIMRUNTIME fails, try using: + * - the directory name from 'helpfile' (unless it contains '$') + * - the executable name from argv[0] + */ + if (p == NULL) + { + if (p_hf != NULL && vim_strchr(p_hf, '$') == NULL) + p = p_hf; +#ifdef USE_EXE_NAME + /* + * Use the name of the executable, obtained from argv[0]. + */ + else + p = exe_name; +#endif + if (p != NULL) + { + /* remove the file name */ + pend = gettail(p); + + /* remove "doc/" from 'helpfile', if present */ + if (p == p_hf) + pend = remove_tail(p, pend, (char_u *)"doc"); + +#ifdef USE_EXE_NAME +# ifdef MACOS_X + /* remove "build/..." from exe_name, if present */ + if (p == exe_name) + { + char_u *pend1; + char_u *pend2; + + pend1 = remove_tail(p, pend, (char_u *)"Contents/MacOS"); + pend2 = remove_tail_with_ext(p, pend1, (char_u *)".app"); + pend = remove_tail(p, pend2, (char_u *)"build"); + /* When runnig from project builder get rid of the + * build/???.app, otherwise keep the ???.app */ + if (pend2 == pend) + pend = pend1; + } +# endif + /* remove "src/" from exe_name, if present */ + if (p == exe_name) + pend = remove_tail(p, pend, (char_u *)"src"); +#endif + + /* for $VIM, remove "runtime/" or "vim54/", if present */ + if (!vimruntime) + { + pend = remove_tail(p, pend, (char_u *)RUNTIME_DIRNAME); + pend = remove_tail(p, pend, (char_u *)VIM_VERSION_NODOT); + } + + /* remove trailing path separator */ +#ifndef MACOS_CLASSIC + /* With MacOS path (with colons) the final colon is required */ + /* to avoid confusion between absoulute and relative path */ + if (pend > p && vim_ispathsep(*(pend - 1))) + --pend; +#endif + + /* check that the result is a directory name */ + p = vim_strnsave(p, (int)(pend - p)); + + if (p != NULL && !mch_isdir(p)) + { + vim_free(p); + p = NULL; + } + else + { +#ifdef USE_EXE_NAME + /* may add "/vim54" or "/runtime" if it exists */ + if (vimruntime && (pend = vim_version_dir(p)) != NULL) + { + vim_free(p); + p = pend; + } +#endif + *mustfree = TRUE; + } + } + } + +#ifdef HAVE_PATHDEF + /* When there is a pathdef.c file we can use default_vim_dir and + * default_vimruntime_dir */ + if (p == NULL) + { + /* Only use default_vimruntime_dir when it is not empty */ + if (vimruntime && *default_vimruntime_dir != NUL) + { + p = default_vimruntime_dir; + *mustfree = FALSE; + } + else if (*default_vim_dir != NUL) + { + if (vimruntime && (p = vim_version_dir(default_vim_dir)) != NULL) + *mustfree = TRUE; + else + { + p = default_vim_dir; + *mustfree = FALSE; + } + } + } +#endif + + /* + * Set the environment variable, so that the new value can be found fast + * next time, and others can also use it (e.g. Perl). + */ + if (p != NULL) + { + if (vimruntime) + { + vim_setenv((char_u *)"VIMRUNTIME", p); + didset_vimruntime = TRUE; +#ifdef FEAT_GETTEXT + { + char_u *buf = alloc((unsigned int)STRLEN(p) + 6); + + if (buf != NULL) + { + STRCPY(buf, p); + STRCAT(buf, "/lang"); + bindtextdomain(VIMPACKAGE, (char *)buf); + vim_free(buf); + } + } +#endif + } + else + { + vim_setenv((char_u *)"VIM", p); + didset_vim = TRUE; + } + } + return p; +} + +/* + * Check if the directory "vimdir/<version>" or "vimdir/runtime" exists. + * Return NULL if not, return its name in allocated memory otherwise. + */ + static char_u * +vim_version_dir(vimdir) + char_u *vimdir; +{ + char_u *p; + + if (vimdir == NULL || *vimdir == NUL) + return NULL; + p = concat_fnames(vimdir, (char_u *)VIM_VERSION_NODOT, TRUE); + if (p != NULL && mch_isdir(p)) + return p; + vim_free(p); + p = concat_fnames(vimdir, (char_u *)RUNTIME_DIRNAME, TRUE); + if (p != NULL && mch_isdir(p)) + return p; + vim_free(p); + return NULL; +} + +/* + * If the string between "p" and "pend" ends in "name/", return "pend" minus + * the length of "name/". Otherwise return "pend". + */ + static char_u * +remove_tail(p, pend, name) + char_u *p; + char_u *pend; + char_u *name; +{ + int len = (int)STRLEN(name) + 1; + char_u *newend = pend - len; + + if (newend >= p + && fnamencmp(newend, name, len - 1) == 0 + && (newend == p || vim_ispathsep(*(newend - 1)))) + return newend; + return pend; +} + +#if defined(USE_EXE_NAME) && defined(MACOS_X) +/* + * If the string between "p" and "pend" ends in "???.ext/", return "pend" + * minus the length of "???.ext/". Otherwise return "pend". + */ + static char_u * +remove_tail_with_ext(p, pend, ext) + char_u *p; + char_u *pend; + char_u *ext; +{ + int len = (int)STRLEN(ext) + 1; + char_u *newend = pend - len; + + if (newend >= p && fnamencmp(newend, ext, len - 1) == 0) + while (newend != p && !vim_ispathsep(*(newend - 1))) + --newend; + if (newend == p || vim_ispathsep(*(newend - 1))) + return newend; + return pend; +} +#endif + +/* + * Call expand_env() and store the result in an allocated string. + * This is not very memory efficient, this expects the result to be freed + * again soon. + */ + char_u * +expand_env_save(src) + char_u *src; +{ + char_u *p; + + p = alloc(MAXPATHL); + if (p != NULL) + expand_env(src, p, MAXPATHL); + return p; +} + +/* + * Our portable version of setenv. + */ + void +vim_setenv(name, val) + char_u *name; + char_u *val; +{ +#ifdef HAVE_SETENV + mch_setenv((char *)name, (char *)val, 1); +#else + char_u *envbuf; + + /* + * Putenv does not copy the string, it has to remain + * valid. The allocated memory will never be freed. + */ + envbuf = alloc((unsigned)(STRLEN(name) + STRLEN(val) + 2)); + if (envbuf != NULL) + { + sprintf((char *)envbuf, "%s=%s", name, val); + putenv((char *)envbuf); + } +#endif +} + +#if defined(FEAT_CMDL_COMPL) || defined(PROTO) +/* + * Function given to ExpandGeneric() to obtain an environment variable name. + */ +/*ARGSUSED*/ + char_u * +get_env_name(xp, idx) + expand_T *xp; + int idx; +{ +# if defined(AMIGA) || defined(__MRC__) || defined(__SC__) + /* + * No environ[] on the Amiga and on the Mac (using MPW). + */ + return NULL; +# else +# ifndef __WIN32__ + /* Borland C++ 5.2 has this in a header file. */ + extern char **environ; +# endif + static char_u name[100]; + char_u *str; + int n; + + str = (char_u *)environ[idx]; + if (str == NULL) + return NULL; + + for (n = 0; n < 99; ++n) + { + if (str[n] == '=' || str[n] == NUL) + break; + name[n] = str[n]; + } + name[n] = NUL; + return name; +# endif +} +#endif + +/* + * Replace home directory by "~" in each space or comma separated file name in + * 'src'. + * If anything fails (except when out of space) dst equals src. + */ + void +home_replace(buf, src, dst, dstlen, one) + buf_T *buf; /* when not NULL, check for help files */ + char_u *src; /* input file name */ + char_u *dst; /* where to put the result */ + int dstlen; /* maximum length of the result */ + int one; /* if TRUE, only replace one file name, include + spaces and commas in the file name. */ +{ + size_t dirlen = 0, envlen = 0; + size_t len; + char_u *homedir_env; + char_u *p; + + if (src == NULL) + { + *dst = NUL; + return; + } + + /* + * If the file is a help file, remove the path completely. + */ + if (buf != NULL && buf->b_help) + { + STRCPY(dst, gettail(src)); + return; + } + + /* + * We check both the value of the $HOME environment variable and the + * "real" home directory. + */ + if (homedir != NULL) + dirlen = STRLEN(homedir); + +#ifdef VMS + homedir_env = mch_getenv((char_u *)"SYS$LOGIN"); +#else + homedir_env = mch_getenv((char_u *)"HOME"); +#endif + + if (homedir_env != NULL && *homedir_env == NUL) + homedir_env = NULL; + if (homedir_env != NULL) + envlen = STRLEN(homedir_env); + + if (!one) + src = skipwhite(src); + while (*src && dstlen > 0) + { + /* + * Here we are at the beginning of a file name. + * First, check to see if the beginning of the file name matches + * $HOME or the "real" home directory. Check that there is a '/' + * after the match (so that if e.g. the file is "/home/pieter/bla", + * and the home directory is "/home/piet", the file does not end up + * as "~er/bla" (which would seem to indicate the file "bla" in user + * er's home directory)). + */ + p = homedir; + len = dirlen; + for (;;) + { + if ( len + && fnamencmp(src, p, len) == 0 + && (vim_ispathsep(src[len]) + || (!one && (src[len] == ',' || src[len] == ' ')) + || src[len] == NUL)) + { + src += len; + if (--dstlen > 0) + *dst++ = '~'; + + /* + * If it's just the home directory, add "/". + */ + if (!vim_ispathsep(src[0]) && --dstlen > 0) + *dst++ = '/'; + break; + } + if (p == homedir_env) + break; + p = homedir_env; + len = envlen; + } + + /* if (!one) skip to separator: space or comma */ + while (*src && (one || (*src != ',' && *src != ' ')) && --dstlen > 0) + *dst++ = *src++; + /* skip separator */ + while ((*src == ' ' || *src == ',') && --dstlen > 0) + *dst++ = *src++; + } + /* if (dstlen == 0) out of space, what to do??? */ + + *dst = NUL; +} + +/* + * Like home_replace, store the replaced string in allocated memory. + * When something fails, NULL is returned. + */ + char_u * +home_replace_save(buf, src) + buf_T *buf; /* when not NULL, check for help files */ + char_u *src; /* input file name */ +{ + char_u *dst; + unsigned len; + + len = 3; /* space for "~/" and trailing NUL */ + if (src != NULL) /* just in case */ + len += (unsigned)STRLEN(src); + dst = alloc(len); + if (dst != NULL) + home_replace(buf, src, dst, len, TRUE); + return dst; +} + +/* + * Compare two file names and return: + * FPC_SAME if they both exist and are the same file. + * FPC_SAMEX if they both don't exist and have the same file name. + * FPC_DIFF if they both exist and are different files. + * FPC_NOTX if they both don't exist. + * FPC_DIFFX if one of them doesn't exist. + * For the first name environment variables are expanded + */ + int +fullpathcmp(s1, s2, checkname) + char_u *s1, *s2; + int checkname; /* when both don't exist, check file names */ +{ +#ifdef UNIX + char_u exp1[MAXPATHL]; + char_u full1[MAXPATHL]; + char_u full2[MAXPATHL]; + struct stat st1, st2; + int r1, r2; + + expand_env(s1, exp1, MAXPATHL); + r1 = mch_stat((char *)exp1, &st1); + r2 = mch_stat((char *)s2, &st2); + if (r1 != 0 && r2 != 0) + { + /* if mch_stat() doesn't work, may compare the names */ + if (checkname) + { + if (fnamecmp(exp1, s2) == 0) + return FPC_SAMEX; + r1 = vim_FullName(exp1, full1, MAXPATHL, FALSE); + r2 = vim_FullName(s2, full2, MAXPATHL, FALSE); + if (r1 == OK && r2 == OK && fnamecmp(full1, full2) == 0) + return FPC_SAMEX; + } + return FPC_NOTX; + } + if (r1 != 0 || r2 != 0) + return FPC_DIFFX; + if (st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino) + return FPC_SAME; + return FPC_DIFF; +#else + char_u *exp1; /* expanded s1 */ + char_u *full1; /* full path of s1 */ + char_u *full2; /* full path of s2 */ + int retval = FPC_DIFF; + int r1, r2; + + /* allocate one buffer to store three paths (alloc()/free() is slow!) */ + if ((exp1 = alloc(MAXPATHL * 3)) != NULL) + { + full1 = exp1 + MAXPATHL; + full2 = full1 + MAXPATHL; + + expand_env(s1, exp1, MAXPATHL); + r1 = vim_FullName(exp1, full1, MAXPATHL, FALSE); + r2 = vim_FullName(s2, full2, MAXPATHL, FALSE); + + /* If vim_FullName() fails, the file probably doesn't exist. */ + if (r1 != OK && r2 != OK) + { + if (checkname && fnamecmp(exp1, s2) == 0) + retval = FPC_SAMEX; + else + retval = FPC_NOTX; + } + else if (r1 != OK || r2 != OK) + retval = FPC_DIFFX; + else if (fnamecmp(full1, full2)) + retval = FPC_DIFF; + else + retval = FPC_SAME; + vim_free(exp1); + } + return retval; +#endif +} + +/* + * get the tail of a path: the file name. + */ + char_u * +gettail(fname) + char_u *fname; +{ + char_u *p1, *p2; + + if (fname == NULL) + return (char_u *)""; + for (p1 = p2 = fname; *p2; ) /* find last part of path */ + { + if (vim_ispathsep(*p2)) + p1 = p2 + 1; +#ifdef FEAT_MBYTE + if (has_mbyte) + p2 += (*mb_ptr2len_check)(p2); + else +#endif + ++p2; + } + return p1; +} + +/* + * get the next path component (just after the next path separator). + */ + char_u * +getnextcomp(fname) + char_u *fname; +{ + while (*fname && !vim_ispathsep(*fname)) + ++fname; + if (*fname) + ++fname; + return fname; +} + +#if defined(FEAT_MODIFY_FNAME) || defined(FEAT_EVAL) \ + || defined(FEAT_SESSION) || defined(MSWIN) \ + || (defined(FEAT_GUI_GTK) \ + && (defined(FEAT_WINDOWS) || defined(FEAT_DND))) \ + || defined(FEAT_SUN_WORKSHOP) || defined(FEAT_NETBEANS_INTG) \ + || defined(PROTO) +/* + * Get a pointer to one character past the head of a path name. + * Unix: after "/"; DOS: after "c:\"; Amiga: after "disk:/"; Mac: no head. + * If there is no head, path is returned. + */ + char_u * +get_past_head(path) + char_u *path; +{ + char_u *retval; + +#if defined(MSDOS) || defined(MSWIN) || defined(OS2) + /* may skip "c:" */ + if (isalpha(path[0]) && path[1] == ':') + retval = path + 2; + else + retval = path; +#else +# if defined(AMIGA) + /* may skip "label:" */ + retval = vim_strchr(path, ':'); + if (retval == NULL) + retval = path; +# else /* Unix */ + retval = path; +# endif +#endif + + while (vim_ispathsep(*retval)) + ++retval; + + return retval; +} +#endif + +/* + * return TRUE if 'c' is a path separator. + */ + int +vim_ispathsep(c) + int c; +{ +#ifdef RISCOS + return (c == '.' || c == ':'); +#else +# ifdef UNIX + return (c == '/'); /* UNIX has ':' inside file names */ +# else +# ifdef BACKSLASH_IN_FILENAME + return (c == ':' || c == '/' || c == '\\'); +# else +# ifdef VMS + /* server"user passwd"::device:[full.path.name]fname.extension;version" */ + return (c == ':' || c == '[' || c == ']' || c == '/' + || c == '<' || c == '>' || c == '"' ); +# else +# ifdef COLON_AS_PATHSEP + return (c == ':'); +# else /* Amiga */ + return (c == ':' || c == '/'); +# endif +# endif /* VMS */ +# endif +# endif +#endif /* RISC OS */ +} + +#if defined(FEAT_SEARCHPATH) || defined(PROTO) +/* + * return TRUE if 'c' is a path list separator. + */ + int +vim_ispathlistsep(c) + int c; +{ +#ifdef UNIX + return (c == ':'); +#else + return (c == ';'); /* might not be rigth for every system... */ +#endif +} +#endif + +#if (defined(CASE_INSENSITIVE_FILENAME) && defined(BACKSLASH_IN_FILENAME)) \ + || defined(PROTO) +/* + * Versions of fnamecmp() and fnamencmp() that handle '/' and '\' equally. + */ + int +vim_fnamecmp(x, y) + char_u *x, *y; +{ + return vim_fnamencmp(x, y, MAXPATHL); +} + + int +vim_fnamencmp(x, y, len) + char_u *x, *y; + size_t len; +{ + while (len > 0 && *x && *y) + { + if (TOLOWER_LOC(*x) != TOLOWER_LOC(*y) + && !(*x == '/' && *y == '\\') + && !(*x == '\\' && *y == '/')) + break; + ++x; + ++y; + --len; + } + if (len == 0) + return 0; + return (*x - *y); +} +#endif + +/* + * Concatenate file names fname1 and fname2 into allocated memory. + * Only add a '/' or '\\' when 'sep' is TRUE and it is neccesary. + */ + char_u * +concat_fnames(fname1, fname2, sep) + char_u *fname1; + char_u *fname2; + int sep; +{ + char_u *dest; + + dest = alloc((unsigned)(STRLEN(fname1) + STRLEN(fname2) + 3)); + if (dest != NULL) + { + STRCPY(dest, fname1); + if (sep) + add_pathsep(dest); + STRCAT(dest, fname2); + } + return dest; +} + +/* + * Add a path separator to a file name, unless it already ends in a path + * separator. + */ + void +add_pathsep(p) + char_u *p; +{ + if (*p != NUL && !vim_ispathsep(*(p + STRLEN(p) - 1))) + STRCAT(p, PATHSEPSTR); +} + +/* + * FullName_save - Make an allocated copy of a full file name. + * Returns NULL when out of memory. + */ + char_u * +FullName_save(fname, force) + char_u *fname; + int force; /* force expansion, even when it already looks + like a full path name */ +{ + char_u *buf; + char_u *new_fname = NULL; + + if (fname == NULL) + return NULL; + + buf = alloc((unsigned)MAXPATHL); + if (buf != NULL) + { + if (vim_FullName(fname, buf, MAXPATHL, force) != FAIL) + new_fname = vim_strsave(buf); + else + new_fname = vim_strsave(fname); + vim_free(buf); + } + return new_fname; +} + +#if defined(FEAT_CINDENT) || defined(FEAT_SYN_HL) + +static char_u *skip_string __ARGS((char_u *p)); + +/* + * Find the start of a comment, not knowing if we are in a comment right now. + * Search starts at w_cursor.lnum and goes backwards. + */ + pos_T * +find_start_comment(ind_maxcomment) /* XXX */ + int ind_maxcomment; +{ + pos_T *pos; + char_u *line; + char_u *p; + + if ((pos = findmatchlimit(NULL, '*', FM_BACKWARD, ind_maxcomment)) == NULL) + return NULL; + + /* + * Check if the comment start we found is inside a string. + */ + line = ml_get(pos->lnum); + for (p = line; *p && (unsigned)(p - line) < pos->col; ++p) + p = skip_string(p); + if ((unsigned)(p - line) > pos->col) + return NULL; + return pos; +} + +/* + * Skip to the end of a "string" and a 'c' character. + * If there is no string or character, return argument unmodified. + */ + static char_u * +skip_string(p) + char_u *p; +{ + int i; + + /* + * We loop, because strings may be concatenated: "date""time". + */ + for ( ; ; ++p) + { + if (p[0] == '\'') /* 'c' or '\n' or '\000' */ + { + if (!p[1]) /* ' at end of line */ + break; + i = 2; + if (p[1] == '\\') /* '\n' or '\000' */ + { + ++i; + while (vim_isdigit(p[i - 1])) /* '\000' */ + ++i; + } + if (p[i] == '\'') /* check for trailing ' */ + { + p += i; + continue; + } + } + else if (p[0] == '"') /* start of string */ + { + for (++p; p[0]; ++p) + { + if (p[0] == '\\' && p[1] != NUL) + ++p; + else if (p[0] == '"') /* end of string */ + break; + } + if (p[0] == '"') + continue; + } + break; /* no string found */ + } + if (!*p) + --p; /* backup from NUL */ + return p; +} +#endif /* FEAT_CINDENT || FEAT_SYN_HL */ + +#if defined(FEAT_CINDENT) || defined(PROTO) + +/* + * Do C or expression indenting on the current line. + */ + void +do_c_expr_indent() +{ +# ifdef FEAT_EVAL + if (*curbuf->b_p_inde != NUL) + fixthisline(get_expr_indent); + else +# endif + fixthisline(get_c_indent); +} + +/* + * Functions for C-indenting. + * Most of this originally comes from Eric Fischer. + */ +/* + * Below "XXX" means that this function may unlock the current line. + */ + +static char_u *cin_skipcomment __ARGS((char_u *)); +static int cin_nocode __ARGS((char_u *)); +static pos_T *find_line_comment __ARGS((void)); +static int cin_islabel_skip __ARGS((char_u **)); +static int cin_isdefault __ARGS((char_u *)); +static char_u *after_label __ARGS((char_u *l)); +static int get_indent_nolabel __ARGS((linenr_T lnum)); +static int skip_label __ARGS((linenr_T, char_u **pp, int ind_maxcomment)); +static int cin_first_id_amount __ARGS((void)); +static int cin_get_equal_amount __ARGS((linenr_T lnum)); +static int cin_ispreproc __ARGS((char_u *)); +static int cin_ispreproc_cont __ARGS((char_u **pp, linenr_T *lnump)); +static int cin_iscomment __ARGS((char_u *)); +static int cin_islinecomment __ARGS((char_u *)); +static int cin_isterminated __ARGS((char_u *, int, int)); +static int cin_isinit __ARGS((void)); +static int cin_isfuncdecl __ARGS((char_u **, linenr_T)); +static int cin_isif __ARGS((char_u *)); +static int cin_iselse __ARGS((char_u *)); +static int cin_isdo __ARGS((char_u *)); +static int cin_iswhileofdo __ARGS((char_u *, linenr_T, int)); +static int cin_isbreak __ARGS((char_u *)); +static int cin_is_cpp_baseclass __ARGS((char_u *line, colnr_T *col)); +static int cin_ends_in __ARGS((char_u *, char_u *, char_u *)); +static int cin_skip2pos __ARGS((pos_T *trypos)); +static pos_T *find_start_brace __ARGS((int)); +static pos_T *find_match_paren __ARGS((int, int)); +static int corr_ind_maxparen __ARGS((int ind_maxparen, pos_T *startpos)); +static int find_last_paren __ARGS((char_u *l, int start, int end)); +static int find_match __ARGS((int lookfor, linenr_T ourscope, int ind_maxparen, int ind_maxcomment)); + +/* + * Skip over white space and C comments within the line. + */ + static char_u * +cin_skipcomment(s) + char_u *s; +{ + while (*s) + { + s = skipwhite(s); + if (*s != '/') + break; + ++s; + if (*s == '/') /* slash-slash comment continues till eol */ + { + s += STRLEN(s); + break; + } + if (*s != '*') + break; + for (++s; *s; ++s) /* skip slash-star comment */ + if (s[0] == '*' && s[1] == '/') + { + s += 2; + break; + } + } + return s; +} + +/* + * Return TRUE if there there is no code at *s. White space and comments are + * not considered code. + */ + static int +cin_nocode(s) + char_u *s; +{ + return *cin_skipcomment(s) == NUL; +} + +/* + * Check previous lines for a "//" line comment, skipping over blank lines. + */ + static pos_T * +find_line_comment() /* XXX */ +{ + static pos_T pos; + char_u *line; + char_u *p; + + pos = curwin->w_cursor; + while (--pos.lnum > 0) + { + line = ml_get(pos.lnum); + p = skipwhite(line); + if (cin_islinecomment(p)) + { + pos.col = (int)(p - line); + return &pos; + } + if (*p != NUL) + break; + } + return NULL; +} + +/* + * Check if string matches "label:"; move to character after ':' if true. + */ + static int +cin_islabel_skip(s) + char_u **s; +{ + if (!vim_isIDc(**s)) /* need at least one ID character */ + return FALSE; + + while (vim_isIDc(**s)) + (*s)++; + + *s = cin_skipcomment(*s); + + /* "::" is not a label, it's C++ */ + return (**s == ':' && *++*s != ':'); +} + +/* + * Recognize a label: "label:". + * Note: curwin->w_cursor must be where we are looking for the label. + */ + int +cin_islabel(ind_maxcomment) /* XXX */ + int ind_maxcomment; +{ + char_u *s; + + s = cin_skipcomment(ml_get_curline()); + + /* + * Exclude "default" from labels, since it should be indented + * like a switch label. Same for C++ scope declarations. + */ + if (cin_isdefault(s)) + return FALSE; + if (cin_isscopedecl(s)) + return FALSE; + + if (cin_islabel_skip(&s)) + { + /* + * Only accept a label if the previous line is terminated or is a case + * label. + */ + pos_T cursor_save; + pos_T *trypos; + char_u *line; + + cursor_save = curwin->w_cursor; + while (curwin->w_cursor.lnum > 1) + { + --curwin->w_cursor.lnum; + + /* + * If we're in a comment now, skip to the start of the comment. + */ + curwin->w_cursor.col = 0; + if ((trypos = find_start_comment(ind_maxcomment)) != NULL) /* XXX */ + curwin->w_cursor = *trypos; + + line = ml_get_curline(); + if (cin_ispreproc(line)) /* ignore #defines, #if, etc. */ + continue; + if (*(line = cin_skipcomment(line)) == NUL) + continue; + + curwin->w_cursor = cursor_save; + if (cin_isterminated(line, TRUE, FALSE) + || cin_isscopedecl(line) + || cin_iscase(line) + || (cin_islabel_skip(&line) && cin_nocode(line))) + return TRUE; + return FALSE; + } + curwin->w_cursor = cursor_save; + return TRUE; /* label at start of file??? */ + } + return FALSE; +} + +/* + * Recognize structure initialization and enumerations. + * Q&D-Implementation: + * check for "=" at end or "[typedef] enum" at beginning of line. + */ + static int +cin_isinit(void) +{ + char_u *s; + + s = cin_skipcomment(ml_get_curline()); + + if (STRNCMP(s, "typedef", 7) == 0 && !vim_isIDc(s[7])) + s = cin_skipcomment(s + 7); + + if (STRNCMP(s, "enum", 4) == 0 && !vim_isIDc(s[4])) + return TRUE; + + if (cin_ends_in(s, (char_u *)"=", (char_u *)"{")) + return TRUE; + + return FALSE; +} + +/* + * Recognize a switch label: "case .*:" or "default:". + */ + int +cin_iscase(s) + char_u *s; +{ + s = cin_skipcomment(s); + if (STRNCMP(s, "case", 4) == 0 && !vim_isIDc(s[4])) + { + for (s += 4; *s; ++s) + { + s = cin_skipcomment(s); + if (*s == ':') + { + if (s[1] == ':') /* skip over "::" for C++ */ + ++s; + else + return TRUE; + } + if (*s == '\'' && s[1] && s[2] == '\'') + s += 2; /* skip over '.' */ + else if (*s == '/' && (s[1] == '*' || s[1] == '/')) + return FALSE; /* stop at comment */ + else if (*s == '"') + return FALSE; /* stop at string */ + } + return FALSE; + } + + if (cin_isdefault(s)) + return TRUE; + return FALSE; +} + +/* + * Recognize a "default" switch label. + */ + static int +cin_isdefault(s) + char_u *s; +{ + return (STRNCMP(s, "default", 7) == 0 + && *(s = cin_skipcomment(s + 7)) == ':' + && s[1] != ':'); +} + +/* + * Recognize a "public/private/proctected" scope declaration label. + */ + int +cin_isscopedecl(s) + char_u *s; +{ + int i; + + s = cin_skipcomment(s); + if (STRNCMP(s, "public", 6) == 0) + i = 6; + else if (STRNCMP(s, "protected", 9) == 0) + i = 9; + else if (STRNCMP(s, "private", 7) == 0) + i = 7; + else + return FALSE; + return (*(s = cin_skipcomment(s + i)) == ':' && s[1] != ':'); +} + +/* + * Return a pointer to the first non-empty non-comment character after a ':'. + * Return NULL if not found. + * case 234: a = b; + * ^ + */ + static char_u * +after_label(l) + char_u *l; +{ + for ( ; *l; ++l) + { + if (*l == ':') + { + if (l[1] == ':') /* skip over "::" for C++ */ + ++l; + else if (!cin_iscase(l + 1)) + break; + } + else if (*l == '\'' && l[1] && l[2] == '\'') + l += 2; /* skip over 'x' */ + } + if (*l == NUL) + return NULL; + l = cin_skipcomment(l + 1); + if (*l == NUL) + return NULL; + return l; +} + +/* + * Get indent of line "lnum", skipping a label. + * Return 0 if there is nothing after the label. + */ + static int +get_indent_nolabel(lnum) /* XXX */ + linenr_T lnum; +{ + char_u *l; + pos_T fp; + colnr_T col; + char_u *p; + + l = ml_get(lnum); + p = after_label(l); + if (p == NULL) + return 0; + + fp.col = (colnr_T)(p - l); + fp.lnum = lnum; + getvcol(curwin, &fp, &col, NULL, NULL); + return (int)col; +} + +/* + * Find indent for line "lnum", ignoring any case or jump label. + * Also return a pointer to the text (after the label). + * label: if (asdf && asdfasdf) + * ^ + */ + static int +skip_label(lnum, pp, ind_maxcomment) + linenr_T lnum; + char_u **pp; + int ind_maxcomment; +{ + char_u *l; + int amount; + pos_T cursor_save; + + cursor_save = curwin->w_cursor; + curwin->w_cursor.lnum = lnum; + l = ml_get_curline(); + /* XXX */ + if (cin_iscase(l) || cin_isscopedecl(l) || cin_islabel(ind_maxcomment)) + { + amount = get_indent_nolabel(lnum); + l = after_label(ml_get_curline()); + if (l == NULL) /* just in case */ + l = ml_get_curline(); + } + else + { + amount = get_indent(); + l = ml_get_curline(); + } + *pp = l; + + curwin->w_cursor = cursor_save; + return amount; +} + +/* + * Return the indent of the first variable name after a type in a declaration. + * int a, indent of "a" + * static struct foo b, indent of "b" + * enum bla c, indent of "c" + * Returns zero when it doesn't look like a declaration. + */ + static int +cin_first_id_amount() +{ + char_u *line, *p, *s; + int len; + pos_T fp; + colnr_T col; + + line = ml_get_curline(); + p = skipwhite(line); + len = skiptowhite(p) - p; + if (len == 6 && STRNCMP(p, "static", 6) == 0) + { + p = skipwhite(p + 6); + len = skiptowhite(p) - p; + } + if (len == 6 && STRNCMP(p, "struct", 6) == 0) + p = skipwhite(p + 6); + else if (len == 4 && STRNCMP(p, "enum", 4) == 0) + p = skipwhite(p + 4); + else if ((len == 8 && STRNCMP(p, "unsigned", 8) == 0) + || (len == 6 && STRNCMP(p, "signed", 6) == 0)) + { + s = skipwhite(p + len); + if ((STRNCMP(s, "int", 3) == 0 && vim_iswhite(s[3])) + || (STRNCMP(s, "long", 4) == 0 && vim_iswhite(s[4])) + || (STRNCMP(s, "short", 5) == 0 && vim_iswhite(s[5])) + || (STRNCMP(s, "char", 4) == 0 && vim_iswhite(s[4]))) + p = s; + } + for (len = 0; vim_isIDc(p[len]); ++len) + ; + if (len == 0 || !vim_iswhite(p[len]) || cin_nocode(p)) + return 0; + + p = skipwhite(p + len); + fp.lnum = curwin->w_cursor.lnum; + fp.col = (colnr_T)(p - line); + getvcol(curwin, &fp, &col, NULL, NULL); + return (int)col; +} + +/* + * Return the indent of the first non-blank after an equal sign. + * char *foo = "here"; + * Return zero if no (useful) equal sign found. + * Return -1 if the line above "lnum" ends in a backslash. + * foo = "asdf\ + * asdf\ + * here"; + */ + static int +cin_get_equal_amount(lnum) + linenr_T lnum; +{ + char_u *line; + char_u *s; + colnr_T col; + pos_T fp; + + if (lnum > 1) + { + line = ml_get(lnum - 1); + if (*line != NUL && line[STRLEN(line) - 1] == '\\') + return -1; + } + + line = s = ml_get(lnum); + while (*s != NUL && vim_strchr((char_u *)"=;{}\"'", *s) == NULL) + { + if (cin_iscomment(s)) /* ignore comments */ + s = cin_skipcomment(s); + else + ++s; + } + if (*s != '=') + return 0; + + s = skipwhite(s + 1); + if (cin_nocode(s)) + return 0; + + if (*s == '"') /* nice alignment for continued strings */ + ++s; + + fp.lnum = lnum; + fp.col = (colnr_T)(s - line); + getvcol(curwin, &fp, &col, NULL, NULL); + return (int)col; +} + +/* + * Recognize a preprocessor statement: Any line that starts with '#'. + */ + static int +cin_ispreproc(s) + char_u *s; +{ + s = skipwhite(s); + if (*s == '#') + return TRUE; + return FALSE; +} + +/* + * Return TRUE if line "*pp" at "*lnump" is a preprocessor statement or a + * continuation line of a preprocessor statement. Decrease "*lnump" to the + * start and return the line in "*pp". + */ + static int +cin_ispreproc_cont(pp, lnump) + char_u **pp; + linenr_T *lnump; +{ + char_u *line = *pp; + linenr_T lnum = *lnump; + int retval = FALSE; + + while (1) + { + if (cin_ispreproc(line)) + { + retval = TRUE; + *lnump = lnum; + break; + } + if (lnum == 1) + break; + line = ml_get(--lnum); + if (*line == NUL || line[STRLEN(line) - 1] != '\\') + break; + } + + if (lnum != *lnump) + *pp = ml_get(*lnump); + return retval; +} + +/* + * Recognize the start of a C or C++ comment. + */ + static int +cin_iscomment(p) + char_u *p; +{ + return (p[0] == '/' && (p[1] == '*' || p[1] == '/')); +} + +/* + * Recognize the start of a "//" comment. + */ + static int +cin_islinecomment(p) + char_u *p; +{ + return (p[0] == '/' && p[1] == '/'); +} + +/* + * Recognize a line that starts with '{' or '}', or ends with ';', '{' or '}'. + * Don't consider "} else" a terminated line. + * Return the character terminating the line (ending char's have precedence if + * both apply in order to determine initializations). + */ + static int +cin_isterminated(s, incl_open, incl_comma) + char_u *s; + int incl_open; /* include '{' at the end as terminator */ + int incl_comma; /* recognize a trailing comma */ +{ + char_u found_start = 0; + + s = cin_skipcomment(s); + + if (*s == '{' || (*s == '}' && !cin_iselse(s))) + found_start = *s; + + while (*s) + { + /* skip over comments, "" strings and 'c'haracters */ + s = skip_string(cin_skipcomment(s)); + if ((*s == ';' || (incl_open && *s == '{') || *s == '}' + || (incl_comma && *s == ',')) + && cin_nocode(s + 1)) + return *s; + + if (*s) + s++; + } + return found_start; +} + +/* + * Recognize the basic picture of a function declaration -- it needs to + * have an open paren somewhere and a close paren at the end of the line and + * no semicolons anywhere. + * When a line ends in a comma we continue looking in the next line. + * "sp" points to a string with the line. When looking at other lines it must + * be restored to the line. When it's NULL fetch lines here. + * "lnum" is where we start looking. + */ + static int +cin_isfuncdecl(sp, first_lnum) + char_u **sp; + linenr_T first_lnum; +{ + char_u *s; + linenr_T lnum = first_lnum; + int retval = FALSE; + + if (sp == NULL) + s = ml_get(lnum); + else + s = *sp; + + while (*s && *s != '(' && *s != ';' && *s != '\'' && *s != '"') + { + if (cin_iscomment(s)) /* ignore comments */ + s = cin_skipcomment(s); + else + ++s; + } + if (*s != '(') + return FALSE; /* ';', ' or " before any () or no '(' */ + + while (*s && *s != ';' && *s != '\'' && *s != '"') + { + if (*s == ')' && cin_nocode(s + 1)) + { + /* ')' at the end: may have found a match + * Check for he previous line not to end in a backslash: + * #if defined(x) && \ + * defined(y) + */ + lnum = first_lnum - 1; + s = ml_get(lnum); + if (*s == NUL || s[STRLEN(s) - 1] != '\\') + retval = TRUE; + goto done; + } + if (*s == ',' && cin_nocode(s + 1)) + { + /* ',' at the end: continue looking in the next line */ + if (lnum >= curbuf->b_ml.ml_line_count) + break; + + s = ml_get(++lnum); + } + else if (cin_iscomment(s)) /* ignore comments */ + s = cin_skipcomment(s); + else + ++s; + } + +done: + if (lnum != first_lnum && sp != NULL) + *sp = ml_get(first_lnum); + + return retval; +} + + static int +cin_isif(p) + char_u *p; +{ + return (STRNCMP(p, "if", 2) == 0 && !vim_isIDc(p[2])); +} + + static int +cin_iselse(p) + char_u *p; +{ + if (*p == '}') /* accept "} else" */ + p = cin_skipcomment(p + 1); + return (STRNCMP(p, "else", 4) == 0 && !vim_isIDc(p[4])); +} + + static int +cin_isdo(p) + char_u *p; +{ + return (STRNCMP(p, "do", 2) == 0 && !vim_isIDc(p[2])); +} + +/* + * Check if this is a "while" that should have a matching "do". + * We only accept a "while (condition) ;", with only white space between the + * ')' and ';'. The condition may be spread over several lines. + */ + static int +cin_iswhileofdo(p, lnum, ind_maxparen) /* XXX */ + char_u *p; + linenr_T lnum; + int ind_maxparen; +{ + pos_T cursor_save; + pos_T *trypos; + int retval = FALSE; + + p = cin_skipcomment(p); + if (*p == '}') /* accept "} while (cond);" */ + p = cin_skipcomment(p + 1); + if (STRNCMP(p, "while", 5) == 0 && !vim_isIDc(p[5])) + { + cursor_save = curwin->w_cursor; + curwin->w_cursor.lnum = lnum; + curwin->w_cursor.col = 0; + p = ml_get_curline(); + while (*p && *p != 'w') /* skip any '}', until the 'w' of the "while" */ + { + ++p; + ++curwin->w_cursor.col; + } + if ((trypos = findmatchlimit(NULL, 0, 0, ind_maxparen)) != NULL + && *cin_skipcomment(ml_get_pos(trypos) + 1) == ';') + retval = TRUE; + curwin->w_cursor = cursor_save; + } + return retval; +} + + static int +cin_isbreak(p) + char_u *p; +{ + return (STRNCMP(p, "break", 5) == 0 && !vim_isIDc(p[5])); +} + +/* Find the position of a C++ base-class declaration or + * constructor-initialization. eg: + * + * class MyClass : + * baseClass <-- here + * class MyClass : public baseClass, + * anotherBaseClass <-- here (should probably lineup ??) + * MyClass::MyClass(...) : + * baseClass(...) <-- here (constructor-initialization) + */ + static int +cin_is_cpp_baseclass(line, col) + char_u *line; + colnr_T *col; +{ + char_u *s; + int class_or_struct, lookfor_ctor_init, cpp_base_class; + + *col = 0; + + s = cin_skipcomment(line); + if (*s == NUL) + return FALSE; + + cpp_base_class = lookfor_ctor_init = class_or_struct = FALSE; + + while(*s != NUL) + { + if (s[0] == ':') + { + if (s[1] == ':') + { + /* skip double colon. It can't be a constructor + * initialization any more */ + lookfor_ctor_init = FALSE; + s = cin_skipcomment(s + 2); + } + else if (lookfor_ctor_init || class_or_struct) + { + /* we have something found, that looks like the start of + * cpp-base-class-declaration or contructor-initialization */ + cpp_base_class = TRUE; + lookfor_ctor_init = class_or_struct = FALSE; + *col = 0; + s = cin_skipcomment(s + 1); + } + else + s = cin_skipcomment(s + 1); + } + else if ((STRNCMP(s, "class", 5) == 0 && !vim_isIDc(s[5])) + || (STRNCMP(s, "struct", 6) == 0 && !vim_isIDc(s[6]))) + { + class_or_struct = TRUE; + lookfor_ctor_init = FALSE; + + if (*s == 'c') + s = cin_skipcomment(s + 5); + else + s = cin_skipcomment(s + 6); + } + else + { + if (s[0] == '{' || s[0] == '}' || s[0] == ';') + { + cpp_base_class = lookfor_ctor_init = class_or_struct = FALSE; + } + else if (s[0] == ')') + { + /* Constructor-initialization is assumed if we come across + * something like "):" */ + class_or_struct = FALSE; + lookfor_ctor_init = TRUE; + } + else if (!vim_isIDc(s[0])) + { + /* if it is not an identifier, we are wrong */ + class_or_struct = FALSE; + lookfor_ctor_init = FALSE; + } + else if (*col == 0) + { + /* it can't be a constructor-initialization any more */ + lookfor_ctor_init = FALSE; + + /* the first statement starts here: lineup with this one... */ + if (cpp_base_class && *col == 0) + *col = (colnr_T)(s - line); + } + + s = cin_skipcomment(s + 1); + } + } + + return cpp_base_class; +} + +/* + * Return TRUE if string "s" ends with the string "find", possibly followed by + * white space and comments. Skip strings and comments. + * Ignore "ignore" after "find" if it's not NULL. + */ + static int +cin_ends_in(s, find, ignore) + char_u *s; + char_u *find; + char_u *ignore; +{ + char_u *p = s; + char_u *r; + int len = (int)STRLEN(find); + + while (*p != NUL) + { + p = cin_skipcomment(p); + if (STRNCMP(p, find, len) == 0) + { + r = skipwhite(p + len); + if (ignore != NULL && STRNCMP(r, ignore, STRLEN(ignore)) == 0) + r = skipwhite(r + STRLEN(ignore)); + if (cin_nocode(r)) + return TRUE; + } + if (*p != NUL) + ++p; + } + return FALSE; +} + +/* + * Skip strings, chars and comments until at or past "trypos". + * Return the column found. + */ + static int +cin_skip2pos(trypos) + pos_T *trypos; +{ + char_u *line; + char_u *p; + + p = line = ml_get(trypos->lnum); + while (*p && (colnr_T)(p - line) < trypos->col) + { + if (cin_iscomment(p)) + p = cin_skipcomment(p); + else + { + p = skip_string(p); + ++p; + } + } + return (int)(p - line); +} + +/* + * Find the '{' at the start of the block we are in. + * Return NULL if no match found. + * Ignore a '{' that is in a comment, makes indenting the next three lines + * work. */ +/* foo() */ +/* { */ +/* } */ + + static pos_T * +find_start_brace(ind_maxcomment) /* XXX */ + int ind_maxcomment; +{ + pos_T cursor_save; + pos_T *trypos; + pos_T *pos; + static pos_T pos_copy; + + cursor_save = curwin->w_cursor; + while ((trypos = findmatchlimit(NULL, '{', FM_BLOCKSTOP, 0)) != NULL) + { + pos_copy = *trypos; /* copy pos_T, next findmatch will change it */ + trypos = &pos_copy; + curwin->w_cursor = *trypos; + pos = NULL; + /* ignore the { if it's in a // comment */ + if ((colnr_T)cin_skip2pos(trypos) == trypos->col + && (pos = find_start_comment(ind_maxcomment)) == NULL) /* XXX */ + break; + if (pos != NULL) + curwin->w_cursor.lnum = pos->lnum; + } + curwin->w_cursor = cursor_save; + return trypos; +} + +/* + * Find the matching '(', failing if it is in a comment. + * Return NULL of no match found. + */ + static pos_T * +find_match_paren(ind_maxparen, ind_maxcomment) /* XXX */ + int ind_maxparen; + int ind_maxcomment; +{ + pos_T cursor_save; + pos_T *trypos; + static pos_T pos_copy; + + cursor_save = curwin->w_cursor; + if ((trypos = findmatchlimit(NULL, '(', 0, ind_maxparen)) != NULL) + { + /* check if the ( is in a // comment */ + if ((colnr_T)cin_skip2pos(trypos) > trypos->col) + trypos = NULL; + else + { + pos_copy = *trypos; /* copy trypos, findmatch will change it */ + trypos = &pos_copy; + curwin->w_cursor = *trypos; + if (find_start_comment(ind_maxcomment) != NULL) /* XXX */ + trypos = NULL; + } + } + curwin->w_cursor = cursor_save; + return trypos; +} + +/* + * Return ind_maxparen corrected for the difference in line number between the + * cursor position and "startpos". This makes sure that searching for a + * matching paren above the cursor line doesn't find a match because of + * looking a few lines further. + */ + static int +corr_ind_maxparen(ind_maxparen, startpos) + int ind_maxparen; + pos_T *startpos; +{ + long n = (long)startpos->lnum - (long)curwin->w_cursor.lnum; + + if (n > 0 && n < ind_maxparen / 2) + return ind_maxparen - (int)n; + return ind_maxparen; +} + +/* + * Set w_cursor.col to the column number of the last unmatched ')' or '{' in + * line "l". + */ + static int +find_last_paren(l, start, end) + char_u *l; + int start, end; +{ + int i; + int retval = FALSE; + int open_count = 0; + + curwin->w_cursor.col = 0; /* default is start of line */ + + for (i = 0; l[i]; i++) + { + i = (int)(cin_skipcomment(l + i) - l); /* ignore parens in comments */ + i = (int)(skip_string(l + i) - l); /* ignore parens in quotes */ + if (l[i] == start) + ++open_count; + else if (l[i] == end) + { + if (open_count > 0) + --open_count; + else + { + curwin->w_cursor.col = i; + retval = TRUE; + } + } + } + return retval; +} + + int +get_c_indent() +{ + /* + * spaces from a block's opening brace the prevailing indent for that + * block should be + */ + int ind_level = curbuf->b_p_sw; + + /* + * spaces from the edge of the line an open brace that's at the end of a + * line is imagined to be. + */ + int ind_open_imag = 0; + + /* + * spaces from the prevailing indent for a line that is not precededof by + * an opening brace. + */ + int ind_no_brace = 0; + + /* + * column where the first { of a function should be located } + */ + int ind_first_open = 0; + + /* + * spaces from the prevailing indent a leftmost open brace should be + * located + */ + int ind_open_extra = 0; + + /* + * spaces from the matching open brace (real location for one at the left + * edge; imaginary location from one that ends a line) the matching close + * brace should be located + */ + int ind_close_extra = 0; + + /* + * spaces from the edge of the line an open brace sitting in the leftmost + * column is imagined to be + */ + int ind_open_left_imag = 0; + + /* + * spaces from the switch() indent a "case xx" label should be located + */ + int ind_case = curbuf->b_p_sw; + + /* + * spaces from the "case xx:" code after a switch() should be located + */ + int ind_case_code = curbuf->b_p_sw; + + /* + * lineup break at end of case in switch() with case label + */ + int ind_case_break = 0; + + /* + * spaces from the class declaration indent a scope declaration label + * should be located + */ + int ind_scopedecl = curbuf->b_p_sw; + + /* + * spaces from the scope declaration label code should be located + */ + int ind_scopedecl_code = curbuf->b_p_sw; + + /* + * amount K&R-style parameters should be indented + */ + int ind_param = curbuf->b_p_sw; + + /* + * amount a function type spec should be indented + */ + int ind_func_type = curbuf->b_p_sw; + + /* + * amount a cpp base class declaration or constructor initialization + * should be indented + */ + int ind_cpp_baseclass = curbuf->b_p_sw; + + /* + * additional spaces beyond the prevailing indent a continuation line + * should be located + */ + int ind_continuation = curbuf->b_p_sw; + + /* + * spaces from the indent of the line with an unclosed parentheses + */ + int ind_unclosed = curbuf->b_p_sw * 2; + + /* + * spaces from the indent of the line with an unclosed parentheses, which + * itself is also unclosed + */ + int ind_unclosed2 = curbuf->b_p_sw; + + /* + * suppress ignoring spaces from the indent of a line starting with an + * unclosed parentheses. + */ + int ind_unclosed_noignore = 0; + + /* + * If the opening paren is the last nonwhite character on the line, and + * ind_unclosed_wrapped is nonzero, use this indent relative to the outer + * context (for very long lines). + */ + int ind_unclosed_wrapped = 0; + + /* + * suppress ignoring white space when lining up with the character after + * an unclosed parentheses. + */ + int ind_unclosed_whiteok = 0; + + /* + * indent a closing parentheses under the line start of the matching + * opening parentheses. + */ + int ind_matching_paren = 0; + + /* + * Extra indent for comments. + */ + int ind_comment = 0; + + /* + * spaces from the comment opener when there is nothing after it. + */ + int ind_in_comment = 3; + + /* + * boolean: if non-zero, use ind_in_comment even if there is something + * after the comment opener. + */ + int ind_in_comment2 = 0; + + /* + * max lines to search for an open paren + */ + int ind_maxparen = 20; + + /* + * max lines to search for an open comment + */ + int ind_maxcomment = 70; + + /* + * handle braces for java code + */ + int ind_java = 0; + + /* + * handle blocked cases correctly + */ + int ind_keep_case_label = 0; + + pos_T cur_curpos; + int amount; + int scope_amount; + int cur_amount; + colnr_T col; + char_u *theline; + char_u *linecopy; + pos_T *trypos; + pos_T *tryposBrace = NULL; + pos_T our_paren_pos; + char_u *start; + int start_brace; +#define BRACE_IN_COL0 1 /* '{' is in comumn 0 */ +#define BRACE_AT_START 2 /* '{' is at start of line */ +#define BRACE_AT_END 3 /* '{' is at end of line */ + linenr_T ourscope; + char_u *l; + char_u *look; + char_u terminated; + int lookfor; +#define LOOKFOR_INITIAL 0 +#define LOOKFOR_IF 1 +#define LOOKFOR_DO 2 +#define LOOKFOR_CASE 3 +#define LOOKFOR_ANY 4 +#define LOOKFOR_TERM 5 +#define LOOKFOR_UNTERM 6 +#define LOOKFOR_SCOPEDECL 7 +#define LOOKFOR_NOBREAK 8 +#define LOOKFOR_CPP_BASECLASS 9 +#define LOOKFOR_ENUM_OR_INIT 10 + + int whilelevel; + linenr_T lnum; + char_u *options; + int fraction = 0; /* init for GCC */ + int divider; + int n; + int iscase; + int lookfor_break; + int cont_amount = 0; /* amount for continuation line */ + + for (options = curbuf->b_p_cino; *options; ) + { + l = options++; + if (*options == '-') + ++options; + n = getdigits(&options); + divider = 0; + if (*options == '.') /* ".5s" means a fraction */ + { + fraction = atol((char *)++options); + while (VIM_ISDIGIT(*options)) + { + ++options; + if (divider) + divider *= 10; + else + divider = 10; + } + } + if (*options == 's') /* "2s" means two times 'shiftwidth' */ + { + if (n == 0 && fraction == 0) + n = curbuf->b_p_sw; /* just "s" is one 'shiftwidth' */ + else + { + n *= curbuf->b_p_sw; + if (divider) + n += (curbuf->b_p_sw * fraction + divider / 2) / divider; + } + ++options; + } + if (l[1] == '-') + n = -n; + /* When adding an entry here, also update the default 'cinoptions' in + * change.txt, and add explanation for it! */ + switch (*l) + { + case '>': ind_level = n; break; + case 'e': ind_open_imag = n; break; + case 'n': ind_no_brace = n; break; + case 'f': ind_first_open = n; break; + case '{': ind_open_extra = n; break; + case '}': ind_close_extra = n; break; + case '^': ind_open_left_imag = n; break; + case ':': ind_case = n; break; + case '=': ind_case_code = n; break; + case 'b': ind_case_break = n; break; + case 'p': ind_param = n; break; + case 't': ind_func_type = n; break; + case '/': ind_comment = n; break; + case 'c': ind_in_comment = n; break; + case 'C': ind_in_comment2 = n; break; + case 'i': ind_cpp_baseclass = n; break; + case '+': ind_continuation = n; break; + case '(': ind_unclosed = n; break; + case 'u': ind_unclosed2 = n; break; + case 'U': ind_unclosed_noignore = n; break; + case 'W': ind_unclosed_wrapped = n; break; + case 'w': ind_unclosed_whiteok = n; break; + case 'm': ind_matching_paren = n; break; + case ')': ind_maxparen = n; break; + case '*': ind_maxcomment = n; break; + case 'g': ind_scopedecl = n; break; + case 'h': ind_scopedecl_code = n; break; + case 'j': ind_java = n; break; + case 'l': ind_keep_case_label = n; break; + } + } + + /* remember where the cursor was when we started */ + cur_curpos = curwin->w_cursor; + + /* Get a copy of the current contents of the line. + * This is required, because only the most recent line obtained with + * ml_get is valid! */ + linecopy = vim_strsave(ml_get(cur_curpos.lnum)); + if (linecopy == NULL) + return 0; + + /* + * In insert mode and the cursor is on a ')' truncate the line at the + * cursor position. We don't want to line up with the matching '(' when + * inserting new stuff. + * For unknown reasons the cursor might be past the end of the line, thus + * check for that. + */ + if ((State & INSERT) + && curwin->w_cursor.col < STRLEN(linecopy) + && linecopy[curwin->w_cursor.col] == ')') + linecopy[curwin->w_cursor.col] = NUL; + + theline = skipwhite(linecopy); + + /* move the cursor to the start of the line */ + + curwin->w_cursor.col = 0; + + /* + * #defines and so on always go at the left when included in 'cinkeys'. + */ + if (*theline == '#' && (*linecopy == '#' || in_cinkeys('#', ' ', TRUE))) + { + amount = 0; + } + + /* + * Is it a non-case label? Then that goes at the left margin too. + */ + else if (cin_islabel(ind_maxcomment)) /* XXX */ + { + amount = 0; + } + + /* + * If we're inside a "//" comment and there is a "//" comment in a + * previous line, lineup with that one. + */ + else if (cin_islinecomment(theline) + && (trypos = find_line_comment()) != NULL) /* XXX */ + { + /* find how indented the line beginning the comment is */ + getvcol(curwin, trypos, &col, NULL, NULL); + amount = col; + } + + /* + * If we're inside a comment and not looking at the start of the + * comment, try using the 'comments' option. + */ + else if (!cin_iscomment(theline) + && (trypos = find_start_comment(ind_maxcomment)) != NULL) /* XXX */ + { + int lead_start_len = 2; + int lead_middle_len = 1; + char_u lead_start[COM_MAX_LEN]; /* start-comment string */ + char_u lead_middle[COM_MAX_LEN]; /* middle-comment string */ + char_u lead_end[COM_MAX_LEN]; /* end-comment string */ + char_u *p; + int start_align = 0; + int start_off = 0; + int done = FALSE; + + /* find how indented the line beginning the comment is */ + getvcol(curwin, trypos, &col, NULL, NULL); + amount = col; + + p = curbuf->b_p_com; + while (*p != NUL) + { + int align = 0; + int off = 0; + int what = 0; + + while (*p != NUL && *p != ':') + { + if (*p == COM_START || *p == COM_END || *p == COM_MIDDLE) + what = *p++; + else if (*p == COM_LEFT || *p == COM_RIGHT) + align = *p++; + else if (VIM_ISDIGIT(*p) || *p == '-') + off = getdigits(&p); + else + ++p; + } + + if (*p == ':') + ++p; + (void)copy_option_part(&p, lead_end, COM_MAX_LEN, ","); + if (what == COM_START) + { + STRCPY(lead_start, lead_end); + lead_start_len = (int)STRLEN(lead_start); + start_off = off; + start_align = align; + } + else if (what == COM_MIDDLE) + { + STRCPY(lead_middle, lead_end); + lead_middle_len = (int)STRLEN(lead_middle); + } + else if (what == COM_END) + { + /* If our line starts with the middle comment string, line it + * up with the comment opener per the 'comments' option. */ + if (STRNCMP(theline, lead_middle, lead_middle_len) == 0 + && STRNCMP(theline, lead_end, STRLEN(lead_end)) != 0) + { + done = TRUE; + if (curwin->w_cursor.lnum > 1) + { + /* If the start comment string matches in the previous + * line, use the indent of that line pluss offset. If + * the middle comment string matches in the previous + * line, use the indent of that line. XXX */ + look = skipwhite(ml_get(curwin->w_cursor.lnum - 1)); + if (STRNCMP(look, lead_start, lead_start_len) == 0) + amount = get_indent_lnum(curwin->w_cursor.lnum - 1); + else if (STRNCMP(look, lead_middle, + lead_middle_len) == 0) + { + amount = get_indent_lnum(curwin->w_cursor.lnum - 1); + break; + } + /* If the start comment string doesn't match with the + * start of the comment, skip this entry. XXX */ + else if (STRNCMP(ml_get(trypos->lnum) + trypos->col, + lead_start, lead_start_len) != 0) + continue; + } + if (start_off != 0) + amount += start_off; + else if (start_align == COM_RIGHT) + amount += lead_start_len - lead_middle_len; + break; + } + + /* If our line starts with the end comment string, line it up + * with the middle comment */ + if (STRNCMP(theline, lead_middle, lead_middle_len) != 0 + && STRNCMP(theline, lead_end, STRLEN(lead_end)) == 0) + { + amount = get_indent_lnum(curwin->w_cursor.lnum - 1); + /* XXX */ + if (off != 0) + amount += off; + else if (align == COM_RIGHT) + amount += lead_start_len - lead_middle_len; + done = TRUE; + break; + } + } + } + + /* If our line starts with an asterisk, line up with the + * asterisk in the comment opener; otherwise, line up + * with the first character of the comment text. + */ + if (done) + ; + else if (theline[0] == '*') + amount += 1; + else + { + /* + * If we are more than one line away from the comment opener, take + * the indent of the previous non-empty line. If 'cino' has "CO" + * and we are just below the comment opener and there are any + * white characters after it line up with the text after it; + * otherwise, add the amount specified by "c" in 'cino' + */ + amount = -1; + for (lnum = cur_curpos.lnum - 1; lnum > trypos->lnum; --lnum) + { + if (linewhite(lnum)) /* skip blank lines */ + continue; + amount = get_indent_lnum(lnum); /* XXX */ + break; + } + if (amount == -1) /* use the comment opener */ + { + if (!ind_in_comment2) + { + start = ml_get(trypos->lnum); + look = start + trypos->col + 2; /* skip / and * */ + if (*look != NUL) /* if something after it */ + trypos->col = (colnr_T)(skipwhite(look) - start); + } + getvcol(curwin, trypos, &col, NULL, NULL); + amount = col; + if (ind_in_comment2 || *look == NUL) + amount += ind_in_comment; + } + } + } + + /* + * Are we inside parentheses or braces? + */ /* XXX */ + else if (((trypos = find_match_paren(ind_maxparen, ind_maxcomment)) != NULL + && ind_java == 0) + || (tryposBrace = find_start_brace(ind_maxcomment)) != NULL + || trypos != NULL) + { + if (trypos != NULL && tryposBrace != NULL) + { + /* Both an unmatched '(' and '{' is found. Use the one which is + * closer to the current cursor position, set the other to NULL. */ + if (trypos->lnum != tryposBrace->lnum + ? trypos->lnum < tryposBrace->lnum + : trypos->col < tryposBrace->col) + trypos = NULL; + else + tryposBrace = NULL; + } + + if (trypos != NULL) + { + /* + * If the matching paren is more than one line away, use the indent of + * a previous non-empty line that matches the same paren. + */ + amount = -1; + cur_amount = MAXCOL; + our_paren_pos = *trypos; + for (lnum = cur_curpos.lnum - 1; lnum > our_paren_pos.lnum; --lnum) + { + l = skipwhite(ml_get(lnum)); + if (cin_nocode(l)) /* skip comment lines */ + continue; + if (cin_ispreproc_cont(&l, &lnum)) /* ignore #defines, #if, etc. */ + continue; + curwin->w_cursor.lnum = lnum; + + /* Skip a comment. XXX */ + if ((trypos = find_start_comment(ind_maxcomment)) != NULL) + { + lnum = trypos->lnum + 1; + continue; + } + + /* XXX */ + if ((trypos = find_match_paren( + corr_ind_maxparen(ind_maxparen, &cur_curpos), + ind_maxcomment)) != NULL + && trypos->lnum == our_paren_pos.lnum + && trypos->col == our_paren_pos.col) + { + amount = get_indent_lnum(lnum); /* XXX */ + + if (theline[0] == ')') + { + if (our_paren_pos.lnum != lnum && cur_amount > amount) + cur_amount = amount; + amount = -1; + } + break; + } + } + + /* + * Line up with line where the matching paren is. XXX + * If the line starts with a '(' or the indent for unclosed + * parentheses is zero, line up with the unclosed parentheses. + */ + if (amount == -1) + { + amount = skip_label(our_paren_pos.lnum, &look, ind_maxcomment); + if (theline[0] == ')' || ind_unclosed == 0 + || (!ind_unclosed_noignore && *skipwhite(look) == '(')) + { + /* + * If we're looking at a close paren, line up right there; + * otherwise, line up with the next (non-white) character. + * When ind_unclosed_wrapped is set and the matching paren is + * the last nonwhite character of the line, use either the + * indent of the current line or the indentation of the next + * outer paren and add ind_unclosed_wrapped (for very long + * lines). + */ + if (theline[0] != ')') + { + cur_amount = MAXCOL; + l = ml_get(our_paren_pos.lnum); + if (ind_unclosed_wrapped + && cin_ends_in(l, (char_u *)"(", NULL)) + { + /* look for opening unmatched paren, indent one level + * for each additional level */ + n = 1; + for (col = 0; col < our_paren_pos.col; ++col) + { + switch (l[col]) + { + case '(': + case '{': ++n; + break; + + case ')': + case '}': if (n > 1) + --n; + break; + } + } + + our_paren_pos.col = 0; + amount += n * ind_unclosed_wrapped; + } + else if (ind_unclosed_whiteok) + our_paren_pos.col++; + else + { + col = our_paren_pos.col + 1; + while (vim_iswhite(l[col])) + col++; + if (l[col] != NUL) /* In case of trailing space */ + our_paren_pos.col = col; + else + our_paren_pos.col++; + } + } + + /* + * Find how indented the paren is, or the character after it + * if we did the above "if". + */ + if (our_paren_pos.col > 0) + { + getvcol(curwin, &our_paren_pos, &col, NULL, NULL); + if (cur_amount > (int)col) + cur_amount = col; + } + } + + if (theline[0] == ')' && ind_matching_paren) + { + /* Line up with the start of the matching paren line. */ + } + else if (ind_unclosed == 0 || (!ind_unclosed_noignore + && *skipwhite(look) == '(')) + { + if (cur_amount != MAXCOL) + amount = cur_amount; + } + else + { + /* add ind_unclosed2 for each '(' before our matching one */ + col = our_paren_pos.col; + while (our_paren_pos.col > 0) + { + --our_paren_pos.col; + switch (*ml_get_pos(&our_paren_pos)) + { + case '(': amount += ind_unclosed2; + col = our_paren_pos.col; + break; + case ')': amount -= ind_unclosed2; + col = MAXCOL; + break; + } + } + + /* Use ind_unclosed once, when the first '(' is not inside + * braces */ + if (col == MAXCOL) + amount += ind_unclosed; + else + { + curwin->w_cursor.lnum = our_paren_pos.lnum; + curwin->w_cursor.col = col; + if ((trypos = find_match_paren(ind_maxparen, + ind_maxcomment)) != NULL) + amount += ind_unclosed2; + else + amount += ind_unclosed; + } + /* + * For a line starting with ')' use the minimum of the two + * positions, to avoid giving it more indent than the previous + * lines: + * func_long_name( if (x + * arg && yy + * ) ^ not here ) ^ not here + */ + if (cur_amount < amount) + amount = cur_amount; + } + } + + /* add extra indent for a comment */ + if (cin_iscomment(theline)) + amount += ind_comment; + } + + /* + * Are we at least inside braces, then? + */ + else + { + trypos = tryposBrace; + + ourscope = trypos->lnum; + start = ml_get(ourscope); + + /* + * Now figure out how indented the line is in general. + * If the brace was at the start of the line, we use that; + * otherwise, check out the indentation of the line as + * a whole and then add the "imaginary indent" to that. + */ + look = skipwhite(start); + if (*look == '{') + { + getvcol(curwin, trypos, &col, NULL, NULL); + amount = col; + if (*start == '{') + start_brace = BRACE_IN_COL0; + else + start_brace = BRACE_AT_START; + } + else + { + /* + * that opening brace might have been on a continuation + * line. if so, find the start of the line. + */ + curwin->w_cursor.lnum = ourscope; + + /* + * position the cursor over the rightmost paren, so that + * matching it will take us back to the start of the line. + */ + lnum = ourscope; + if (find_last_paren(start, '(', ')') + && (trypos = find_match_paren(ind_maxparen, + ind_maxcomment)) != NULL) + lnum = trypos->lnum; + + /* + * It could have been something like + * case 1: if (asdf && + * ldfd) { + * } + */ + if (ind_keep_case_label && cin_iscase(skipwhite(ml_get_curline()))) + amount = get_indent(); + else + amount = skip_label(lnum, &l, ind_maxcomment); + + start_brace = BRACE_AT_END; + } + + /* + * if we're looking at a closing brace, that's where + * we want to be. otherwise, add the amount of room + * that an indent is supposed to be. + */ + if (theline[0] == '}') + { + /* + * they may want closing braces to line up with something + * other than the open brace. indulge them, if so. + */ + amount += ind_close_extra; + } + else + { + /* + * If we're looking at an "else", try to find an "if" + * to match it with. + * If we're looking at a "while", try to find a "do" + * to match it with. + */ + lookfor = LOOKFOR_INITIAL; + if (cin_iselse(theline)) + lookfor = LOOKFOR_IF; + else if (cin_iswhileofdo(theline, cur_curpos.lnum, ind_maxparen)) + /* XXX */ + lookfor = LOOKFOR_DO; + if (lookfor != LOOKFOR_INITIAL) + { + curwin->w_cursor.lnum = cur_curpos.lnum; + if (find_match(lookfor, ourscope, ind_maxparen, + ind_maxcomment) == OK) + { + amount = get_indent(); /* XXX */ + goto theend; + } + } + + /* + * We get here if we are not on an "while-of-do" or "else" (or + * failed to find a matching "if"). + * Search backwards for something to line up with. + * First set amount for when we don't find anything. + */ + + /* + * if the '{' is _really_ at the left margin, use the imaginary + * location of a left-margin brace. Otherwise, correct the + * location for ind_open_extra. + */ + + if (start_brace == BRACE_IN_COL0) /* '{' is in column 0 */ + { + amount = ind_open_left_imag; + } + else + { + if (start_brace == BRACE_AT_END) /* '{' is at end of line */ + amount += ind_open_imag; + else + { + /* Compensate for adding ind_open_extra later. */ + amount -= ind_open_extra; + if (amount < 0) + amount = 0; + } + } + + lookfor_break = FALSE; + + if (cin_iscase(theline)) /* it's a switch() label */ + { + lookfor = LOOKFOR_CASE; /* find a previous switch() label */ + amount += ind_case; + } + else if (cin_isscopedecl(theline)) /* private:, ... */ + { + lookfor = LOOKFOR_SCOPEDECL; /* class decl is this block */ + amount += ind_scopedecl; + } + else + { + if (ind_case_break && cin_isbreak(theline)) /* break; ... */ + lookfor_break = TRUE; + + lookfor = LOOKFOR_INITIAL; + amount += ind_level; /* ind_level from start of block */ + } + scope_amount = amount; + whilelevel = 0; + + /* + * Search backwards. If we find something we recognize, line up + * with that. + * + * if we're looking at an open brace, indent + * the usual amount relative to the conditional + * that opens the block. + */ + curwin->w_cursor = cur_curpos; + for (;;) + { + curwin->w_cursor.lnum--; + curwin->w_cursor.col = 0; + + /* + * If we went all the way back to the start of our scope, line + * up with it. + */ + if (curwin->w_cursor.lnum <= ourscope) + { + /* we reached end of scope: + * if looking for a enum or structure initialization + * go further back: + * if it is an initializer (enum xxx or xxx =), then + * don't add ind_continuation, otherwise it is a variable + * declaration: + * int x, + * here; <-- add ind_continuation + */ + if (lookfor == LOOKFOR_ENUM_OR_INIT) + { + if (curwin->w_cursor.lnum == 0 + || curwin->w_cursor.lnum + < ourscope - ind_maxparen) + { + /* nothing found (abuse ind_maxparen as limit) + * assume terminated line (i.e. a variable + * initialization) */ + if (cont_amount > 0) + amount = cont_amount; + else + amount += ind_continuation; + break; + } + + l = ml_get_curline(); + + /* + * If we're in a comment now, skip to the start of the + * comment. + */ + trypos = find_start_comment(ind_maxcomment); + if (trypos != NULL) + { + curwin->w_cursor.lnum = trypos->lnum + 1; + continue; + } + + /* + * Skip preprocessor directives and blank lines. + */ + if (cin_ispreproc_cont(&l, &curwin->w_cursor.lnum)) + continue; + + if (cin_nocode(l)) + continue; + + terminated = cin_isterminated(l, FALSE, TRUE); + + /* + * If we are at top level and the line looks like a + * function declaration, we are done + * (it's a variable declaration). + */ + if (start_brace != BRACE_IN_COL0 + || !cin_isfuncdecl(&l, curwin->w_cursor.lnum)) + { + /* if the line is terminated with another ',' + * it is a continued variable initialization. + * don't add extra indent. + * TODO: does not work, if a function + * declaration is split over multiple lines: + * cin_isfuncdecl returns FALSE then. + */ + if (terminated == ',') + break; + + /* if it es a enum declaration or an assignment, + * we are done. + */ + if (terminated != ';' && cin_isinit()) + break; + + /* nothing useful found */ + if (terminated == 0 || terminated == '{') + continue; + } + + if (terminated != ';') + { + /* Skip parens and braces. Position the cursor + * over the rightmost paren, so that matching it + * will take us back to the start of the line. + */ /* XXX */ + trypos = NULL; + if (find_last_paren(l, '(', ')')) + trypos = find_match_paren(ind_maxparen, + ind_maxcomment); + + if (trypos == NULL && find_last_paren(l, '{', '}')) + trypos = find_start_brace(ind_maxcomment); + + if (trypos != NULL) + { + curwin->w_cursor.lnum = trypos->lnum + 1; + continue; + } + } + + /* it's a variable declaration, add indentation + * like in + * int a, + * b; + */ + if (cont_amount > 0) + amount = cont_amount; + else + amount += ind_continuation; + } + else if (lookfor == LOOKFOR_UNTERM) + { + if (cont_amount > 0) + amount = cont_amount; + else + amount += ind_continuation; + } + else if (lookfor != LOOKFOR_TERM + && lookfor != LOOKFOR_CPP_BASECLASS) + { + amount = scope_amount; + if (theline[0] == '{') + amount += ind_open_extra; + } + break; + } + + /* + * If we're in a comment now, skip to the start of the comment. + */ /* XXX */ + if ((trypos = find_start_comment(ind_maxcomment)) != NULL) + { + curwin->w_cursor.lnum = trypos->lnum + 1; + continue; + } + + l = ml_get_curline(); + + /* + * If this is a switch() label, may line up relative to that. + * if this is a C++ scope declaration, do the same. + */ + iscase = cin_iscase(l); + if (iscase || cin_isscopedecl(l)) + { + /* we are only looking for cpp base class + * declaration/initialization any longer */ + if (lookfor == LOOKFOR_CPP_BASECLASS) + break; + + /* When looking for a "do" we are not interested in + * labels. */ + if (whilelevel > 0) + continue; + + /* + * case xx: + * c = 99 + <- this indent plus continuation + *-> here; + */ + if (lookfor == LOOKFOR_UNTERM + || lookfor == LOOKFOR_ENUM_OR_INIT) + { + if (cont_amount > 0) + amount = cont_amount; + else + amount += ind_continuation; + break; + } + + /* + * case xx: <- line up with this case + * x = 333; + * case yy: + */ + if ( (iscase && lookfor == LOOKFOR_CASE) + || (iscase && lookfor_break) + || (!iscase && lookfor == LOOKFOR_SCOPEDECL)) + { + /* + * Check that this case label is not for another + * switch() + */ /* XXX */ + if ((trypos = find_start_brace(ind_maxcomment)) == + NULL || trypos->lnum == ourscope) + { + amount = get_indent(); /* XXX */ + break; + } + continue; + } + + n = get_indent_nolabel(curwin->w_cursor.lnum); /* XXX */ + + /* + * case xx: if (cond) <- line up with this if + * y = y + 1; + * -> s = 99; + * + * case xx: + * if (cond) <- line up with this line + * y = y + 1; + * -> s = 99; + */ + if (lookfor == LOOKFOR_TERM) + { + if (n) + amount = n; + + if (!lookfor_break) + break; + } + + /* + * case xx: x = x + 1; <- line up with this x + * -> y = y + 1; + * + * case xx: if (cond) <- line up with this if + * -> y = y + 1; + */ + if (n) + { + amount = n; + l = after_label(ml_get_curline()); + if (l != NULL && cin_is_cinword(l)) + amount += ind_level + ind_no_brace; + break; + } + + /* + * Try to get the indent of a statement before the switch + * label. If nothing is found, line up relative to the + * switch label. + * break; <- may line up with this line + * case xx: + * -> y = 1; + */ + scope_amount = get_indent() + (iscase /* XXX */ + ? ind_case_code : ind_scopedecl_code); + lookfor = ind_case_break ? LOOKFOR_NOBREAK : LOOKFOR_ANY; + continue; + } + + /* + * Looking for a switch() label or C++ scope declaration, + * ignore other lines, skip {}-blocks. + */ + if (lookfor == LOOKFOR_CASE || lookfor == LOOKFOR_SCOPEDECL) + { + if (find_last_paren(l, '{', '}') && (trypos = + find_start_brace(ind_maxcomment)) != NULL) + curwin->w_cursor.lnum = trypos->lnum + 1; + continue; + } + + /* + * Ignore jump labels with nothing after them. + */ + if (cin_islabel(ind_maxcomment)) + { + l = after_label(ml_get_curline()); + if (l == NULL || cin_nocode(l)) + continue; + } + + /* + * Ignore #defines, #if, etc. + * Ignore comment and empty lines. + * (need to get the line again, cin_islabel() may have + * unlocked it) + */ + l = ml_get_curline(); + if (cin_ispreproc_cont(&l, &curwin->w_cursor.lnum) + || cin_nocode(l)) + continue; + + /* + * Are we at the start of a cpp base class declaration or + * constructor initialization? + */ /* XXX */ + if (lookfor != LOOKFOR_TERM && ind_cpp_baseclass + && cin_is_cpp_baseclass(l, &col)) + { + if (lookfor == LOOKFOR_UNTERM) + { + if (cont_amount > 0) + amount = cont_amount; + else + amount += ind_continuation; + } + else if (col == 0 || theline[0] == '{') + { + amount = get_indent(); + if (find_last_paren(l, '(', ')') + && (trypos = find_match_paren(ind_maxparen, + ind_maxcomment)) != NULL) + amount = get_indent_lnum(trypos->lnum); /* XXX */ + if (theline[0] != '{') + amount += ind_cpp_baseclass; + } + else + { + curwin->w_cursor.col = col; + getvcol(curwin, &curwin->w_cursor, &col, NULL, NULL); + amount = (int)col; + } + break; + } + else if (lookfor == LOOKFOR_CPP_BASECLASS) + { + /* only look, whether there is a cpp base class + * declaration or initialization before the opening brace. */ + if (cin_isterminated(l, TRUE, FALSE)) + break; + else + continue; + } + + /* + * What happens next depends on the line being terminated. + * If terminated with a ',' only consider it terminating if + * there is anoter unterminated statement behind, eg: + * 123, + * sizeof + * here + * Otherwise check whether it is a enumeration or structure + * initialisation (not indented) or a variable declaration + * (indented). + */ + terminated = cin_isterminated(l, FALSE, TRUE); + + if (terminated == 0 || (lookfor != LOOKFOR_UNTERM + && terminated == ',')) + { + /* + * if we're in the middle of a paren thing, + * go back to the line that starts it so + * we can get the right prevailing indent + * if ( foo && + * bar ) + */ + /* + * position the cursor over the rightmost paren, so that + * matching it will take us back to the start of the line. + */ + (void)find_last_paren(l, '(', ')'); + trypos = find_match_paren( + corr_ind_maxparen(ind_maxparen, &cur_curpos), + ind_maxcomment); + + /* + * If we are looking for ',', we also look for matching + * braces. + */ + if (trypos == NULL && find_last_paren(l, '{', '}')) + trypos = find_start_brace(ind_maxcomment); + + if (trypos != NULL) + { + /* + * Check if we are on a case label now. This is + * handled above. + * case xx: if ( asdf && + * asdf) + */ + curwin->w_cursor.lnum = trypos->lnum; + l = ml_get_curline(); + if (cin_iscase(l) || cin_isscopedecl(l)) + { + ++curwin->w_cursor.lnum; + continue; + } + } + + /* + * Skip over continuation lines to find the one to get the + * indent from + * char *usethis = "bla\ + * bla", + * here; + */ + if (terminated == ',') + { + while (curwin->w_cursor.lnum > 1) + { + l = ml_get(curwin->w_cursor.lnum - 1); + if (*l == NUL || l[STRLEN(l) - 1] != '\\') + break; + --curwin->w_cursor.lnum; + } + } + + /* + * Get indent and pointer to text for current line, + * ignoring any jump label. XXX + */ + cur_amount = skip_label(curwin->w_cursor.lnum, + &l, ind_maxcomment); + + /* + * If this is just above the line we are indenting, and it + * starts with a '{', line it up with this line. + * while (not) + * -> { + * } + */ + if (terminated != ',' && lookfor != LOOKFOR_TERM + && theline[0] == '{') + { + amount = cur_amount; + /* + * Only add ind_open_extra when the current line + * doesn't start with a '{', which must have a match + * in the same line (scope is the same). Probably: + * { 1, 2 }, + * -> { 3, 4 } + */ + if (*skipwhite(l) != '{') + amount += ind_open_extra; + + if (ind_cpp_baseclass) + { + /* have to look back, whether it is a cpp base + * class declaration or initialization */ + lookfor = LOOKFOR_CPP_BASECLASS; + continue; + } + break; + } + + /* + * Check if we are after an "if", "while", etc. + * Also allow " } else". + */ + if (cin_is_cinword(l) || cin_iselse(skipwhite(l))) + { + /* + * Found an unterminated line after an if (), line up + * with the last one. + * if (cond) + * 100 + + * -> here; + */ + if (lookfor == LOOKFOR_UNTERM + || lookfor == LOOKFOR_ENUM_OR_INIT) + { + if (cont_amount > 0) + amount = cont_amount; + else + amount += ind_continuation; + break; + } + + /* + * If this is just above the line we are indenting, we + * are finished. + * while (not) + * -> here; + * Otherwise this indent can be used when the line + * before this is terminated. + * yyy; + * if (stat) + * while (not) + * xxx; + * -> here; + */ + amount = cur_amount; + if (theline[0] == '{') + amount += ind_open_extra; + if (lookfor != LOOKFOR_TERM) + { + amount += ind_level + ind_no_brace; + break; + } + + /* + * Special trick: when expecting the while () after a + * do, line up with the while() + * do + * x = 1; + * -> here + */ + l = skipwhite(ml_get_curline()); + if (cin_isdo(l)) + { + if (whilelevel == 0) + break; + --whilelevel; + } + + /* + * When searching for a terminated line, don't use the + * one between the "if" and the "else". + * Need to use the scope of this "else". XXX + * If whilelevel != 0 continue looking for a "do {". + */ + if (cin_iselse(l) + && whilelevel == 0 + && ((trypos = find_start_brace(ind_maxcomment)) + == NULL + || find_match(LOOKFOR_IF, trypos->lnum, + ind_maxparen, ind_maxcomment) == FAIL)) + break; + } + + /* + * If we're below an unterminated line that is not an + * "if" or something, we may line up with this line or + * add someting for a continuation line, depending on + * the line before this one. + */ + else + { + /* + * Found two unterminated lines on a row, line up with + * the last one. + * c = 99 + + * 100 + + * -> here; + */ + if (lookfor == LOOKFOR_UNTERM) + { + /* When line ends in a comma add extra indent */ + if (terminated == ',') + amount += ind_continuation; + break; + } + + if (lookfor == LOOKFOR_ENUM_OR_INIT) + { + /* Found two lines ending in ',', lineup with the + * lowest one, but check for cpp base class + * declaration/initialization, if it is an + * opening brace or we are looking just for + * enumerations/initializations. */ + if (terminated == ',') + { + if (ind_cpp_baseclass == 0) + break; + + lookfor = LOOKFOR_CPP_BASECLASS; + continue; + } + + /* Ignore unterminated lines in between, but + * reduce indent. */ + if (amount > cur_amount) + amount = cur_amount; + } + else + { + /* + * Found first unterminated line on a row, may + * line up with this line, remember its indent + * 100 + + * -> here; + */ + amount = cur_amount; + + /* + * If previous line ends in ',', check whether we + * are in an initialization or enum + * struct xxx = + * { + * sizeof a, + * 124 }; + * or a normal possible continuation line. + * but only, of no other statement has been found + * yet. + */ + if (lookfor == LOOKFOR_INITIAL && terminated == ',') + { + lookfor = LOOKFOR_ENUM_OR_INIT; + cont_amount = cin_first_id_amount(); + } + else + { + if (lookfor == LOOKFOR_INITIAL + && *l != NUL + && l[STRLEN(l) - 1] == '\\') + /* XXX */ + cont_amount = cin_get_equal_amount( + curwin->w_cursor.lnum); + if (lookfor != LOOKFOR_TERM) + lookfor = LOOKFOR_UNTERM; + } + } + } + } + + /* + * Check if we are after a while (cond); + * If so: Ignore until the matching "do". + */ + /* XXX */ + else if (cin_iswhileofdo(l, + curwin->w_cursor.lnum, ind_maxparen)) + { + /* + * Found an unterminated line after a while ();, line up + * with the last one. + * while (cond); + * 100 + <- line up with this one + * -> here; + */ + if (lookfor == LOOKFOR_UNTERM + || lookfor == LOOKFOR_ENUM_OR_INIT) + { + if (cont_amount > 0) + amount = cont_amount; + else + amount += ind_continuation; + break; + } + + if (whilelevel == 0) + { + lookfor = LOOKFOR_TERM; + amount = get_indent(); /* XXX */ + if (theline[0] == '{') + amount += ind_open_extra; + } + ++whilelevel; + } + + /* + * We are after a "normal" statement. + * If we had another statement we can stop now and use the + * indent of that other statement. + * Otherwise the indent of the current statement may be used, + * search backwards for the next "normal" statement. + */ + else + { + /* + * Skip single break line, if before a switch label. It + * may be lined up with the case label. + */ + if (lookfor == LOOKFOR_NOBREAK + && cin_isbreak(skipwhite(ml_get_curline()))) + { + lookfor = LOOKFOR_ANY; + continue; + } + + /* + * Handle "do {" line. + */ + if (whilelevel > 0) + { + l = cin_skipcomment(ml_get_curline()); + if (cin_isdo(l)) + { + amount = get_indent(); /* XXX */ + --whilelevel; + continue; + } + } + + /* + * Found a terminated line above an unterminated line. Add + * the amount for a continuation line. + * x = 1; + * y = foo + + * -> here; + * or + * int x = 1; + * int foo, + * -> here; + */ + if (lookfor == LOOKFOR_UNTERM + || lookfor == LOOKFOR_ENUM_OR_INIT) + { + if (cont_amount > 0) + amount = cont_amount; + else + amount += ind_continuation; + break; + } + + /* + * Found a terminated line above a terminated line or "if" + * etc. line. Use the amount of the line below us. + * x = 1; x = 1; + * if (asdf) y = 2; + * while (asdf) ->here; + * here; + * ->foo; + */ + if (lookfor == LOOKFOR_TERM) + { + if (!lookfor_break && whilelevel == 0) + break; + } + + /* + * First line above the one we're indenting is terminated. + * To know what needs to be done look further backward for + * a terminated line. + */ + else + { + /* + * position the cursor over the rightmost paren, so + * that matching it will take us back to the start of + * the line. Helps for: + * func(asdr, + * asdfasdf); + * here; + */ +term_again: + l = ml_get_curline(); + if (find_last_paren(l, '(', ')') + && (trypos = find_match_paren(ind_maxparen, + ind_maxcomment)) != NULL) + { + /* + * Check if we are on a case label now. This is + * handled above. + * case xx: if ( asdf && + * asdf) + */ + curwin->w_cursor.lnum = trypos->lnum; + l = ml_get_curline(); + if (cin_iscase(l) || cin_isscopedecl(l)) + { + ++curwin->w_cursor.lnum; + continue; + } + } + + /* When aligning with the case statement, don't align + * with a statement after it. + * case 1: { <-- don't use this { position + * stat; + * } + * case 2: + * stat; + * } + */ + iscase = (ind_keep_case_label && cin_iscase(l)); + + /* + * Get indent and pointer to text for current line, + * ignoring any jump label. + */ + amount = skip_label(curwin->w_cursor.lnum, + &l, ind_maxcomment); + + if (theline[0] == '{') + amount += ind_open_extra; + /* See remark above: "Only add ind_open_extra.." */ + if (*skipwhite(l) == '{') + amount -= ind_open_extra; + lookfor = iscase ? LOOKFOR_ANY : LOOKFOR_TERM; + + /* + * If we're at the end of a block, skip to the start of + * that block. + */ + curwin->w_cursor.col = 0; + if (*cin_skipcomment(l) == '}' + && (trypos = find_start_brace(ind_maxcomment)) + != NULL) /* XXX */ + { + curwin->w_cursor.lnum = trypos->lnum; + /* if not "else {" check for terminated again */ + /* but skip block for "} else {" */ + l = cin_skipcomment(ml_get_curline()); + if (*l == '}' || !cin_iselse(l)) + goto term_again; + ++curwin->w_cursor.lnum; + } + } + } + } + } + } + + /* add extra indent for a comment */ + if (cin_iscomment(theline)) + amount += ind_comment; + } + + /* + * ok -- we're not inside any sort of structure at all! + * + * this means we're at the top level, and everything should + * basically just match where the previous line is, except + * for the lines immediately following a function declaration, + * which are K&R-style parameters and need to be indented. + */ + else + { + /* + * if our line starts with an open brace, forget about any + * prevailing indent and make sure it looks like the start + * of a function + */ + + if (theline[0] == '{') + { + amount = ind_first_open; + } + + /* + * If the NEXT line is a function declaration, the current + * line needs to be indented as a function type spec. + * Don't do this if the current line looks like a comment + * or if the current line is terminated, ie. ends in ';'. + */ + else if (cur_curpos.lnum < curbuf->b_ml.ml_line_count + && !cin_nocode(theline) + && !cin_ends_in(theline, (char_u *)":", NULL) + && !cin_ends_in(theline, (char_u *)",", NULL) + && cin_isfuncdecl(NULL, cur_curpos.lnum + 1) + && !cin_isterminated(theline, FALSE, TRUE)) + { + amount = ind_func_type; + } + else + { + amount = 0; + curwin->w_cursor = cur_curpos; + + /* search backwards until we find something we recognize */ + + while (curwin->w_cursor.lnum > 1) + { + curwin->w_cursor.lnum--; + curwin->w_cursor.col = 0; + + l = ml_get_curline(); + + /* + * If we're in a comment now, skip to the start of the comment. + */ /* XXX */ + if ((trypos = find_start_comment(ind_maxcomment)) != NULL) + { + curwin->w_cursor.lnum = trypos->lnum + 1; + continue; + } + + /* + * Are we at the start of a cpp base class declaration or constructor + * initialization? + */ /* XXX */ + if (ind_cpp_baseclass != 0 && theline[0] != '{' + && cin_is_cpp_baseclass(l, &col)) + { + if (col == 0) + { + amount = get_indent() + ind_cpp_baseclass; /* XXX */ + if (find_last_paren(l, '(', ')') + && (trypos = find_match_paren(ind_maxparen, + ind_maxcomment)) != NULL) + amount = get_indent_lnum(trypos->lnum) + + ind_cpp_baseclass; /* XXX */ + } + else + { + curwin->w_cursor.col = col; + getvcol(curwin, &curwin->w_cursor, &col, NULL, NULL); + amount = (int)col; + } + break; + } + + /* + * Skip preprocessor directives and blank lines. + */ + if (cin_ispreproc_cont(&l, &curwin->w_cursor.lnum)) + continue; + + if (cin_nocode(l)) + continue; + + /* + * If the previous line ends in ',', use one level of + * indentation: + * int foo, + * bar; + * do this before checking for '}' in case of eg. + * enum foobar + * { + * ... + * } foo, + * bar; + */ + n = 0; + if (cin_ends_in(l, (char_u *)",", NULL) + || (*l != NUL && (n = l[STRLEN(l) - 1]) == '\\')) + { + /* take us back to opening paren */ + if (find_last_paren(l, '(', ')') + && (trypos = find_match_paren(ind_maxparen, + ind_maxcomment)) != NULL) + curwin->w_cursor.lnum = trypos->lnum; + + /* For a line ending in ',' that is a continuation line go + * back to the first line with a backslash: + * char *foo = "bla\ + * bla", + * here; + */ + while (n == 0 && curwin->w_cursor.lnum > 1) + { + l = ml_get(curwin->w_cursor.lnum - 1); + if (*l == NUL || l[STRLEN(l) - 1] != '\\') + break; + --curwin->w_cursor.lnum; + } + + amount = get_indent(); /* XXX */ + + if (amount == 0) + amount = cin_first_id_amount(); + if (amount == 0) + amount = ind_continuation; + break; + } + + /* + * If the line looks like a function declaration, and we're + * not in a comment, put it the left margin. + */ + if (cin_isfuncdecl(NULL, cur_curpos.lnum)) /* XXX */ + break; + l = ml_get_curline(); + + /* + * Finding the closing '}' of a previous function. Put + * current line at the left margin. For when 'cino' has "fs". + */ + if (*skipwhite(l) == '}') + break; + + /* (matching {) + * If the previous line ends on '};' (maybe followed by + * comments) align at column 0. For example: + * char *string_array[] = { "foo", + * / * x * / "b};ar" }; / * foobar * / + */ + if (cin_ends_in(l, (char_u *)"};", NULL)) + break; + + /* + * If the PREVIOUS line is a function declaration, the current + * line (and the ones that follow) needs to be indented as + * parameters. + */ + if (cin_isfuncdecl(&l, curwin->w_cursor.lnum)) + { + amount = ind_param; + break; + } + + /* + * If the previous line ends in ';' and the line before the + * previous line ends in ',' or '\', ident to column zero: + * int foo, + * bar; + * indent_to_0 here; + */ + if (cin_ends_in(l, (char_u*)";", NULL)) + { + l = ml_get(curwin->w_cursor.lnum - 1); + if (cin_ends_in(l, (char_u *)",", NULL) + || (*l != NUL && l[STRLEN(l) - 1] == '\\')) + break; + l = ml_get_curline(); + } + + /* + * Doesn't look like anything interesting -- so just + * use the indent of this line. + * + * Position the cursor over the rightmost paren, so that + * matching it will take us back to the start of the line. + */ + find_last_paren(l, '(', ')'); + + if ((trypos = find_match_paren(ind_maxparen, + ind_maxcomment)) != NULL) + curwin->w_cursor.lnum = trypos->lnum; + amount = get_indent(); /* XXX */ + break; + } + + /* add extra indent for a comment */ + if (cin_iscomment(theline)) + amount += ind_comment; + + /* add extra indent if the previous line ended in a backslash: + * "asdfasdf\ + * here"; + * char *foo = "asdf\ + * here"; + */ + if (cur_curpos.lnum > 1) + { + l = ml_get(cur_curpos.lnum - 1); + if (*l != NUL && l[STRLEN(l) - 1] == '\\') + { + cur_amount = cin_get_equal_amount(cur_curpos.lnum - 1); + if (cur_amount > 0) + amount = cur_amount; + else if (cur_amount == 0) + amount += ind_continuation; + } + } + } + } + +theend: + /* put the cursor back where it belongs */ + curwin->w_cursor = cur_curpos; + + vim_free(linecopy); + + if (amount < 0) + return 0; + return amount; +} + + static int +find_match(lookfor, ourscope, ind_maxparen, ind_maxcomment) + int lookfor; + linenr_T ourscope; + int ind_maxparen; + int ind_maxcomment; +{ + char_u *look; + pos_T *theirscope; + char_u *mightbeif; + int elselevel; + int whilelevel; + + if (lookfor == LOOKFOR_IF) + { + elselevel = 1; + whilelevel = 0; + } + else + { + elselevel = 0; + whilelevel = 1; + } + + curwin->w_cursor.col = 0; + + while (curwin->w_cursor.lnum > ourscope + 1) + { + curwin->w_cursor.lnum--; + curwin->w_cursor.col = 0; + + look = cin_skipcomment(ml_get_curline()); + if (cin_iselse(look) + || cin_isif(look) + || cin_isdo(look) /* XXX */ + || cin_iswhileofdo(look, curwin->w_cursor.lnum, ind_maxparen)) + { + /* + * if we've gone outside the braces entirely, + * we must be out of scope... + */ + theirscope = find_start_brace(ind_maxcomment); /* XXX */ + if (theirscope == NULL) + break; + + /* + * and if the brace enclosing this is further + * back than the one enclosing the else, we're + * out of luck too. + */ + if (theirscope->lnum < ourscope) + break; + + /* + * and if they're enclosed in a *deeper* brace, + * then we can ignore it because it's in a + * different scope... + */ + if (theirscope->lnum > ourscope) + continue; + + /* + * if it was an "else" (that's not an "else if") + * then we need to go back to another if, so + * increment elselevel + */ + look = cin_skipcomment(ml_get_curline()); + if (cin_iselse(look)) + { + mightbeif = cin_skipcomment(look + 4); + if (!cin_isif(mightbeif)) + ++elselevel; + continue; + } + + /* + * if it was a "while" then we need to go back to + * another "do", so increment whilelevel. XXX + */ + if (cin_iswhileofdo(look, curwin->w_cursor.lnum, ind_maxparen)) + { + ++whilelevel; + continue; + } + + /* If it's an "if" decrement elselevel */ + look = cin_skipcomment(ml_get_curline()); + if (cin_isif(look)) + { + elselevel--; + /* + * When looking for an "if" ignore "while"s that + * get in the way. + */ + if (elselevel == 0 && lookfor == LOOKFOR_IF) + whilelevel = 0; + } + + /* If it's a "do" decrement whilelevel */ + if (cin_isdo(look)) + whilelevel--; + + /* + * if we've used up all the elses, then + * this must be the if that we want! + * match the indent level of that if. + */ + if (elselevel <= 0 && whilelevel <= 0) + { + return OK; + } + } + } + return FAIL; +} + +# if defined(FEAT_EVAL) || defined(PROTO) +/* + * Get indent level from 'indentexpr'. + */ + int +get_expr_indent() +{ + int indent; + pos_T pos; + int save_State; + + pos = curwin->w_cursor; + set_vim_var_nr(VV_LNUM, curwin->w_cursor.lnum); + ++sandbox; + indent = eval_to_number(curbuf->b_p_inde); + --sandbox; + + /* Restore the cursor position so that 'indentexpr' doesn't need to. + * Pretend to be in Insert mode, allow cursor past end of line for "o" + * command. */ + save_State = State; + State = INSERT; + curwin->w_cursor = pos; + check_cursor(); + State = save_State; + + /* If there is an error, just keep the current indent. */ + if (indent < 0) + indent = get_indent(); + + return indent; +} +# endif + +#endif /* FEAT_CINDENT */ + +#if defined(FEAT_LISP) || defined(PROTO) + +static int lisp_match __ARGS((char_u *p)); + + static int +lisp_match(p) + char_u *p; +{ + char_u buf[LSIZE]; + int len; + char_u *word = p_lispwords; + + while (*word != NUL) + { + (void)copy_option_part(&word, buf, LSIZE, ","); + len = (int)STRLEN(buf); + if (STRNCMP(buf, p, len) == 0 && p[len] == ' ') + return TRUE; + } + return FALSE; +} + +/* + * When 'p' is present in 'cpoptions, a Vi compatible method is used. + * The incompatible newer method is quite a bit better at indenting + * code in lisp-like languages than the traditional one; it's still + * mostly heuristics however -- Dirk van Deun, dirk@rave.org + * + * TODO: + * Findmatch() should be adapted for lisp, also to make showmatch + * work correctly: now (v5.3) it seems all C/C++ oriented: + * - it does not recognize the #\( and #\) notations as character literals + * - it doesn't know about comments starting with a semicolon + * - it incorrectly interprets '(' as a character literal + * All this messes up get_lisp_indent in some rare cases. + */ + int +get_lisp_indent() +{ + pos_T *pos, realpos; + int amount; + char_u *that; + colnr_T col; + colnr_T firsttry; + int parencount, quotecount; + int vi_lisp; + + /* Set vi_lisp to use the vi-compatible method */ + vi_lisp = (vim_strchr(p_cpo, CPO_LISP) != NULL); + + realpos = curwin->w_cursor; + curwin->w_cursor.col = 0; + + if ((pos = findmatch(NULL, '(')) != NULL) + { + /* Extra trick: Take the indent of the first previous non-white + * line that is at the same () level. */ + amount = -1; + parencount = 0; + + while (--curwin->w_cursor.lnum >= pos->lnum) + { + if (linewhite(curwin->w_cursor.lnum)) + continue; + for (that = ml_get_curline(); *that != NUL; ++that) + { + if (*that == ';') + { + while (*(that + 1) != NUL) + ++that; + continue; + } + if (*that == '\\') + { + if (*(that + 1) != NUL) + ++that; + continue; + } + if (*that == '"' && *(that + 1) != NUL) + { + that++; + while (*that && (*that != '"' || *(that - 1) == '\\')) + ++that; + } + if (*that == '(') + ++parencount; + else if (*that == ')') + --parencount; + } + if (parencount == 0) + { + amount = get_indent(); + break; + } + } + + if (amount == -1) + { + curwin->w_cursor.lnum = pos->lnum; + curwin->w_cursor.col = pos->col; + col = pos->col; + + that = ml_get_curline(); + + if (vi_lisp && get_indent() == 0) + amount = 2; + else + { + amount = 0; + while (*that && col) + { + amount += lbr_chartabsize_adv(&that, (colnr_T)amount); + col--; + } + + /* + * Some keywords require "body" indenting rules (the + * non-standard-lisp ones are Scheme special forms): + * + * (let ((a 1)) instead (let ((a 1)) + * (...)) of (...)) + */ + + if (!vi_lisp && *that == '(' && lisp_match(that + 1)) + amount += 2; + else + { + that++; + amount++; + firsttry = amount; + + while (vim_iswhite(*that)) + { + amount += lbr_chartabsize(that, (colnr_T)amount); + ++that; + } + + if (*that && *that != ';') /* not a comment line */ + { + /* test *that != '(' to accomodate first let/do + * argument if it is more than one line */ + if (!vi_lisp && *that != '(') + firsttry++; + + parencount = 0; + quotecount = 0; + + if (vi_lisp + || (*that != '"' + && *that != '\'' + && *that != '#' + && (*that < '0' || *that > '9'))) + { + while (*that + && (!vim_iswhite(*that) + || quotecount + || parencount) + && (!(*that == '(' + && !quotecount + && !parencount + && vi_lisp))) + { + if (*that == '"') + quotecount = !quotecount; + if (*that == '(' && !quotecount) + ++parencount; + if (*that == ')' && !quotecount) + --parencount; + if (*that == '\\' && *(that+1) != NUL) + amount += lbr_chartabsize_adv(&that, + (colnr_T)amount); + amount += lbr_chartabsize_adv(&that, + (colnr_T)amount); + } + } + while (vim_iswhite(*that)) + { + amount += lbr_chartabsize(that, (colnr_T)amount); + that++; + } + if (!*that || *that == ';') + amount = firsttry; + } + } + } + } + } + else + amount = 0; /* no matching '(' found, use zero indent */ + + curwin->w_cursor = realpos; + + return amount; +} +#endif /* FEAT_LISP */ + + void +prepare_to_exit() +{ +#ifdef FEAT_GUI + if (gui.in_use) + { + gui.dying = TRUE; + out_trash(); /* trash any pending output */ + } + else +#endif + { + windgoto((int)Rows - 1, 0); + + /* + * Switch terminal mode back now, so messages end up on the "normal" + * screen (if there are two screens). + */ + settmode(TMODE_COOK); +#ifdef WIN3264 + if (can_end_termcap_mode(FALSE) == TRUE) +#endif + stoptermcap(); + out_flush(); + } +} + +/* + * Preserve files and exit. + * When called IObuff must contain a message. + */ + void +preserve_exit() +{ + buf_T *buf; + + prepare_to_exit(); + + out_str(IObuff); + screen_start(); /* don't know where cursor is now */ + out_flush(); + + ml_close_notmod(); /* close all not-modified buffers */ + + for (buf = firstbuf; buf != NULL; buf = buf->b_next) + { + if (buf->b_ml.ml_mfp != NULL && buf->b_ml.ml_mfp->mf_fname != NULL) + { + OUT_STR(_("Vim: preserving files...\n")); + screen_start(); /* don't know where cursor is now */ + out_flush(); + ml_sync_all(FALSE, FALSE); /* preserve all swap files */ + break; + } + } + + ml_close_all(FALSE); /* close all memfiles, without deleting */ + + OUT_STR(_("Vim: Finished.\n")); + + getout(1); +} + +/* + * return TRUE if "fname" exists. + */ + int +vim_fexists(fname) + char_u *fname; +{ + struct stat st; + + if (mch_stat((char *)fname, &st)) + return FALSE; + return TRUE; +} + +/* + * Check for CTRL-C pressed, but only once in a while. + * Should be used instead of ui_breakcheck() for functions that check for + * each line in the file. Calling ui_breakcheck() each time takes too much + * time, because it can be a system call. + */ + +#ifndef BREAKCHECK_SKIP +# ifdef FEAT_GUI /* assume the GUI only runs on fast computers */ +# define BREAKCHECK_SKIP 200 +# else +# define BREAKCHECK_SKIP 32 +# endif +#endif + +static int breakcheck_count = 0; + + void +line_breakcheck() +{ + if (++breakcheck_count >= BREAKCHECK_SKIP) + { + breakcheck_count = 0; + ui_breakcheck(); + } +} + +/* + * Like line_breakcheck() but check 10 times less often. + */ + void +fast_breakcheck() +{ + if (++breakcheck_count >= BREAKCHECK_SKIP * 10) + { + breakcheck_count = 0; + ui_breakcheck(); + } +} + +/* + * Expand wildcards. Calls gen_expand_wildcards() and removes files matching + * 'wildignore'. + */ + int +expand_wildcards(num_pat, pat, num_file, file, flags) + int num_pat; /* number of input patterns */ + char_u **pat; /* array of input patterns */ + int *num_file; /* resulting number of files */ + char_u ***file; /* array of resulting files */ + int flags; /* EW_DIR, etc. */ +{ + int retval; + int i, j; + char_u *p; + int non_suf_match; /* number without matching suffix */ + + retval = gen_expand_wildcards(num_pat, pat, num_file, file, flags); + + /* When keeping all matches, return here */ + if (flags & EW_KEEPALL) + return retval; + +#ifdef FEAT_WILDIGN + /* + * Remove names that match 'wildignore'. + */ + if (*p_wig) + { + char_u *ffname; + + /* check all files in (*file)[] */ + for (i = 0; i < *num_file; ++i) + { + ffname = FullName_save((*file)[i], FALSE); + if (ffname == NULL) /* out of memory */ + break; +# ifdef VMS + vms_remove_version(ffname); +# endif + if (match_file_list(p_wig, (*file)[i], ffname)) + { + /* remove this matching file from the list */ + vim_free((*file)[i]); + for (j = i; j + 1 < *num_file; ++j) + (*file)[j] = (*file)[j + 1]; + --*num_file; + --i; + } + vim_free(ffname); + } + } +#endif + + /* + * Move the names where 'suffixes' match to the end. + */ + if (*num_file > 1) + { + non_suf_match = 0; + for (i = 0; i < *num_file; ++i) + { + if (!match_suffix((*file)[i])) + { + /* + * Move the name without matching suffix to the front + * of the list. + */ + p = (*file)[i]; + for (j = i; j > non_suf_match; --j) + (*file)[j] = (*file)[j - 1]; + (*file)[non_suf_match++] = p; + } + } + } + + return retval; +} + +/* + * Return TRUE if "fname" matches with an entry in 'suffixes'. + */ + int +match_suffix(fname) + char_u *fname; +{ + int fnamelen, setsuflen; + char_u *setsuf; +#define MAXSUFLEN 30 /* maximum length of a file suffix */ + char_u suf_buf[MAXSUFLEN]; + + fnamelen = (int)STRLEN(fname); + setsuflen = 0; + for (setsuf = p_su; *setsuf; ) + { + setsuflen = copy_option_part(&setsuf, suf_buf, MAXSUFLEN, ".,"); + if (fnamelen >= setsuflen + && fnamencmp(suf_buf, fname + fnamelen - setsuflen, + (size_t)setsuflen) == 0) + break; + setsuflen = 0; + } + return (setsuflen != 0); +} + +#if !defined(NO_EXPANDPATH) || defined(PROTO) + +# ifdef VIM_BACKTICK +static int vim_backtick __ARGS((char_u *p)); +static int expand_backtick __ARGS((garray_T *gap, char_u *pat, int flags)); +# endif + +# if defined(MSDOS) || defined(FEAT_GUI_W16) || defined(WIN3264) +/* + * File name expansion code for MS-DOS, Win16 and Win32. It's here because + * it's shared between these systems. + */ +# if defined(DJGPP) || defined(PROTO) +# define _cdecl /* DJGPP doesn't have this */ +# else +# ifdef __BORLANDC__ +# define _cdecl _RTLENTRYF +# endif +# endif + +/* + * comparison function for qsort in dos_expandpath() + */ + static int _cdecl +pstrcmp(const void *a, const void *b) +{ + return (pathcmp(*(char **)a, *(char **)b)); +} + +# ifndef WIN3264 + static void +namelowcpy( + char_u *d, + char_u *s) +{ +# ifdef DJGPP + if (USE_LONG_FNAME) /* don't lower case on Windows 95/NT systems */ + while (*s) + *d++ = *s++; + else +# endif + while (*s) + *d++ = TOLOWER_LOC(*s++); + *d = NUL; +} +# endif + +/* + * Recursively build up a list of files in "gap" matching the first wildcard + * in `path'. Called by expand_wildcards(). + * Return the number of matches found. + * "path" has backslashes before chars that are not to be expanded, starting + * at "path[wildoff]". + */ + static int +dos_expandpath( + garray_T *gap, + char_u *path, + int wildoff, + int flags) /* EW_* flags */ +{ + char_u *buf; + char_u *path_end; + char_u *p, *s, *e; + int start_len = gap->ga_len; + int ok; +#ifdef WIN3264 + WIN32_FIND_DATA fb; + HANDLE hFind = (HANDLE)0; +# ifdef FEAT_MBYTE + WIN32_FIND_DATAW wfb; + WCHAR *wn = NULL; /* UCS-2 name, NULL when not used. */ +# endif +#else + struct ffblk fb; +#endif + int matches; + int starts_with_dot; + int len; + char_u *pat; + regmatch_T regmatch; + char_u *matchname; + + /* make room for file name */ + buf = alloc((unsigned int)STRLEN(path) + BASENAMELEN + 5); + if (buf == NULL) + return 0; + + /* + * Find the first part in the path name that contains a wildcard or a ~1. + * Copy it into buf, including the preceding characters. + */ + p = buf; + s = buf; + e = NULL; + path_end = path; + while (*path_end != NUL) + { + /* May ignore a wildcard that has a backslash before it; it will + * be removed by rem_backslash() or file_pat_to_reg_pat() below. */ + if (path_end >= path + wildoff && rem_backslash(path_end)) + *p++ = *path_end++; + else if (*path_end == '\\' || *path_end == ':' || *path_end == '/') + { + if (e != NULL) + break; + s = p + 1; + } + else if (path_end >= path + wildoff + && vim_strchr((char_u *)"*?[~", *path_end) != NULL) + e = p; +#ifdef FEAT_MBYTE + if (has_mbyte) + { + len = (*mb_ptr2len_check)(path_end); + STRNCPY(p, path_end, len); + p += len; + path_end += len; + } + else +#endif + *p++ = *path_end++; + } + e = p; + *e = NUL; + + /* now we have one wildcard component between s and e */ + /* Remove backslashes between "wildoff" and the start of the wildcard + * component. */ + for (p = buf + wildoff; p < s; ++p) + if (rem_backslash(p)) + { + STRCPY(p, p + 1); + --e; + --s; + } + + starts_with_dot = (*s == '.'); + pat = file_pat_to_reg_pat(s, e, NULL, FALSE); + if (pat == NULL) + { + vim_free(buf); + return 0; + } + + /* compile the regexp into a program */ + regmatch.rm_ic = TRUE; /* Always ignore case */ + regmatch.regprog = vim_regcomp(pat, RE_MAGIC); + vim_free(pat); + + if (regmatch.regprog == NULL) + { + vim_free(buf); + return 0; + } + + /* remember the pattern or file name being looked for */ + matchname = vim_strsave(s); + + /* Scan all files in the directory with "dir/ *.*" */ + STRCPY(s, "*.*"); +#ifdef WIN3264 +# ifdef FEAT_MBYTE + if (enc_codepage >= 0 && (int)GetACP() != enc_codepage) + { + /* The active codepage differs from 'encoding'. Attempt using the + * wide function. If it fails because it is not implemented fall back + * to the non-wide version (for Windows 98) */ + wn = enc_to_ucs2(buf, NULL); + if (wn != NULL) + { + hFind = FindFirstFileW(wn, &wfb); + if (hFind == INVALID_HANDLE_VALUE + && GetLastError() == ERROR_CALL_NOT_IMPLEMENTED) + { + vim_free(wn); + wn = NULL; + } + } + } + + if (wn == NULL) +# endif + hFind = FindFirstFile(buf, &fb); + ok = (hFind != INVALID_HANDLE_VALUE); +#else + /* If we are expanding wildcards we try both files and directories */ + ok = (findfirst((char *)buf, &fb, + (*path_end != NUL || (flags & EW_DIR)) ? FA_DIREC : 0) == 0); +#endif + + while (ok) + { +#ifdef WIN3264 +# ifdef FEAT_MBYTE + if (wn != NULL) + p = ucs2_to_enc(wfb.cFileName, NULL); /* p is allocated here */ + else +# endif + p = (char_u *)fb.cFileName; +#else + p = (char_u *)fb.ff_name; +#endif + /* Ignore entries starting with a dot, unless when asked for. Accept + * all entries found with "matchname". */ + if ((p[0] != '.' || starts_with_dot) + && (matchname == NULL + || vim_regexec(®match, p, (colnr_T)0))) + { +#ifdef WIN3264 + STRCPY(s, p); +#else + namelowcpy(s, p); +#endif + len = (int)STRLEN(buf); + STRCPY(buf + len, path_end); + if (mch_has_exp_wildcard(path_end)) + { + /* need to expand another component of the path */ + /* remove backslashes for the remaining components only */ + (void)dos_expandpath(gap, buf, len + 1, flags); + } + else + { + /* no more wildcards, check if there is a match */ + /* remove backslashes for the remaining components only */ + if (*path_end != 0) + backslash_halve(buf + len + 1); + if (mch_getperm(buf) >= 0) /* add existing file */ + addfile(gap, buf, flags); + } + } + +#ifdef WIN3264 +# ifdef FEAT_MBYTE + if (wn != NULL) + { + vim_free(p); + ok = FindNextFileW(hFind, &wfb); + } + else +# endif + ok = FindNextFile(hFind, &fb); +#else + ok = (findnext(&fb) == 0); +#endif + + /* If no more matches and no match was used, try expanding the name + * itself. Finds the long name of a short filename. */ + if (!ok && matchname != NULL && gap->ga_len == start_len) + { + STRCPY(s, matchname); +#ifdef WIN3264 + FindClose(hFind); +# ifdef FEAT_MBYTE + if (wn != NULL) + { + vim_free(wn); + wn = enc_to_ucs2(buf, NULL); + if (wn != NULL) + hFind = FindFirstFileW(wn, &wfb); + } + if (wn == NULL) +# endif + hFind = FindFirstFile(buf, &fb); + ok = (hFind != INVALID_HANDLE_VALUE); +#else + ok = (findfirst((char *)buf, &fb, + (*path_end != NUL || (flags & EW_DIR)) ? FA_DIREC : 0) == 0); +#endif + vim_free(matchname); + matchname = NULL; + } + } + +#ifdef WIN3264 + FindClose(hFind); +# ifdef FEAT_MBYTE + vim_free(wn); +# endif +#endif + vim_free(buf); + vim_free(regmatch.regprog); + vim_free(matchname); + + matches = gap->ga_len - start_len; + if (matches > 0) + qsort(((char_u **)gap->ga_data) + start_len, (size_t)matches, + sizeof(char_u *), pstrcmp); + return matches; +} + + int +mch_expandpath( + garray_T *gap, + char_u *path, + int flags) /* EW_* flags */ +{ + return dos_expandpath(gap, path, 0, flags); +} +# endif /* MSDOS || FEAT_GUI_W16 || WIN3264 */ + +/* + * Generic wildcard expansion code. + * + * Characters in "pat" that should not be expanded must be preceded with a + * backslash. E.g., "/path\ with\ spaces/my\*star*" + * + * Return FAIL when no single file was found. In this case "num_file" is not + * set, and "file" may contain an error message. + * Return OK when some files found. "num_file" is set to the number of + * matches, "file" to the array of matches. Call FreeWild() later. + */ + int +gen_expand_wildcards(num_pat, pat, num_file, file, flags) + int num_pat; /* number of input patterns */ + char_u **pat; /* array of input patterns */ + int *num_file; /* resulting number of files */ + char_u ***file; /* array of resulting files */ + int flags; /* EW_* flags */ +{ + int i; + garray_T ga; + char_u *p; + static int recursive = FALSE; + int add_pat; + + /* + * expand_env() is called to expand things like "~user". If this fails, + * it calls ExpandOne(), which brings us back here. In this case, always + * call the machine specific expansion function, if possible. Otherwise, + * return FAIL. + */ + if (recursive) +#ifdef SPECIAL_WILDCHAR + return mch_expand_wildcards(num_pat, pat, num_file, file, flags); +#else + return FAIL; +#endif + +#ifdef SPECIAL_WILDCHAR + /* + * If there are any special wildcard characters which we cannot handle + * here, call machine specific function for all the expansion. This + * avoids starting the shell for each argument separately. + * For `=expr` do use the internal function. + */ + for (i = 0; i < num_pat; i++) + { + if (vim_strpbrk(pat[i], (char_u *)SPECIAL_WILDCHAR) != NULL +# ifdef VIM_BACKTICK + && !(vim_backtick(pat[i]) && pat[i][1] == '=') +# endif + ) + return mch_expand_wildcards(num_pat, pat, num_file, file, flags); + } +#endif + + recursive = TRUE; + + /* + * The matching file names are stored in a growarray. Init it empty. + */ + ga_init2(&ga, (int)sizeof(char_u *), 30); + + for (i = 0; i < num_pat; ++i) + { + add_pat = -1; + p = pat[i]; + +#ifdef VIM_BACKTICK + if (vim_backtick(p)) + add_pat = expand_backtick(&ga, p, flags); + else +#endif + { + /* + * First expand environment variables, "~/" and "~user/". + */ + if (vim_strpbrk(p, (char_u *)"$~") != NULL) + { + p = expand_env_save(p); + if (p == NULL) + p = pat[i]; +#ifdef UNIX + /* + * On Unix, if expand_env() can't expand an environment + * variable, use the shell to do that. Discard previously + * found file names and start all over again. + */ + else if (vim_strpbrk(p, (char_u *)"$~") != NULL) + { + vim_free(p); + ga_clear(&ga); + i = mch_expand_wildcards(num_pat, pat, num_file, file, + flags); + recursive = FALSE; + return i; + } +#endif + } + + /* + * If there are wildcards: Expand file names and add each match to + * the list. If there is no match, and EW_NOTFOUND is given, add + * the pattern. + * If there are no wildcards: Add the file name if it exists or + * when EW_NOTFOUND is given. + */ + if (mch_has_exp_wildcard(p)) + add_pat = mch_expandpath(&ga, p, flags); + } + + if (add_pat == -1 || (add_pat == 0 && (flags & EW_NOTFOUND))) + { + char_u *t = backslash_halve_save(p); + +#if defined(MACOS_CLASSIC) + slash_to_colon(t); +#endif + /* When EW_NOTFOUND is used, always add files and dirs. Makes + * "vim c:/" work. */ + if (flags & EW_NOTFOUND) + addfile(&ga, t, flags | EW_DIR | EW_FILE); + else if (mch_getperm(t) >= 0) + addfile(&ga, t, flags); + vim_free(t); + } + + if (p != pat[i]) + vim_free(p); + } + + *num_file = ga.ga_len; + *file = (ga.ga_data != NULL) ? (char_u **)ga.ga_data : (char_u **)""; + + recursive = FALSE; + + return (ga.ga_data != NULL) ? OK : FAIL; +} + +# ifdef VIM_BACKTICK + +/* + * Return TRUE if we can expand this backtick thing here. + */ + static int +vim_backtick(p) + char_u *p; +{ + return (*p == '`' && *(p + 1) != NUL && *(p + STRLEN(p) - 1) == '`'); +} + +/* + * Expand an item in `backticks` by executing it as a command. + * Currently only works when pat[] starts and ends with a `. + * Returns number of file names found. + */ + static int +expand_backtick(gap, pat, flags) + garray_T *gap; + char_u *pat; + int flags; /* EW_* flags */ +{ + char_u *p; + char_u *cmd; + char_u *buffer; + int cnt = 0; + int i; + + /* Create the command: lop off the backticks. */ + cmd = vim_strnsave(pat + 1, (int)STRLEN(pat) - 2); + if (cmd == NULL) + return 0; + +#ifdef FEAT_EVAL + if (*cmd == '=') /* `={expr}`: Expand expression */ + buffer = eval_to_string(cmd + 1, &p); + else +#endif + buffer = get_cmd_output(cmd, (flags & EW_SILENT) ? SHELL_SILENT : 0); + vim_free(cmd); + if (buffer == NULL) + return 0; + + cmd = buffer; + while (*cmd != NUL) + { + cmd = skipwhite(cmd); /* skip over white space */ + p = cmd; + while (*p != NUL && *p != '\r' && *p != '\n') /* skip over entry */ + ++p; + /* add an entry if it is not empty */ + if (p > cmd) + { + i = *p; + *p = NUL; + addfile(gap, cmd, flags); + *p = i; + ++cnt; + } + cmd = p; + while (*cmd != NUL && (*cmd == '\r' || *cmd == '\n')) + ++cmd; + } + + vim_free(buffer); + return cnt; +} +# endif /* VIM_BACKTICK */ + +/* + * Add a file to a file list. Accepted flags: + * EW_DIR add directories + * EW_FILE add files + * EW_NOTFOUND add even when it doesn't exist + * EW_ADDSLASH add slash after directory name + */ + void +addfile(gap, f, flags) + garray_T *gap; + char_u *f; /* filename */ + int flags; +{ + char_u *p; + int isdir; + + /* if the file/dir doesn't exist, may not add it */ + if (!(flags & EW_NOTFOUND) && mch_getperm(f) < 0) + return; + +#ifdef FNAME_ILLEGAL + /* if the file/dir contains illegal characters, don't add it */ + if (vim_strpbrk(f, (char_u *)FNAME_ILLEGAL) != NULL) + return; +#endif + + isdir = mch_isdir(f); + if ((isdir && !(flags & EW_DIR)) || (!isdir && !(flags & EW_FILE))) + return; + + /* Make room for another item in the file list. */ + if (ga_grow(gap, 1) == FAIL) + return; + + p = alloc((unsigned)(STRLEN(f) + 1 + isdir)); + if (p == NULL) + return; + + STRCPY(p, f); +#ifdef BACKSLASH_IN_FILENAME + slash_adjust(p); +#endif + /* + * Append a slash or backslash after directory names if none is present. + */ +#ifndef DONT_ADD_PATHSEP_TO_DIR + if (isdir && (flags & EW_ADDSLASH)) + add_pathsep(p); +#endif + ((char_u **)gap->ga_data)[gap->ga_len++] = p; + --gap->ga_room; +} +#endif /* !NO_EXPANDPATH */ + +#if defined(VIM_BACKTICK) || defined(FEAT_EVAL) || defined(PROTO) + +#ifndef SEEK_SET +# define SEEK_SET 0 +#endif +#ifndef SEEK_END +# define SEEK_END 2 +#endif + +/* + * Get the stdout of an external command. + * Returns an allocated string, or NULL for error. + */ + char_u * +get_cmd_output(cmd, flags) + char_u *cmd; + int flags; /* can be SHELL_SILENT */ +{ + char_u *tempname; + char_u *command; + char_u *buffer = NULL; + int len; + int i = 0; + FILE *fd; + + if (check_restricted() || check_secure()) + return NULL; + + /* get a name for the temp file */ + if ((tempname = vim_tempname('o')) == NULL) + { + EMSG(_(e_notmp)); + return NULL; + } + + /* Add the redirection stuff */ + command = make_filter_cmd(cmd, NULL, tempname); + if (command == NULL) + goto done; + + /* + * Call the shell to execute the command (errors are ignored). + * Don't check timestamps here. + */ + ++no_check_timestamps; + call_shell(command, SHELL_DOOUT | SHELL_EXPAND | flags); + --no_check_timestamps; + + vim_free(command); + + /* + * read the names from the file into memory + */ +# ifdef VMS + /* created temporary file is not allways readable as binary */ + fd = mch_fopen((char *)tempname, "r"); +# else + fd = mch_fopen((char *)tempname, READBIN); +# endif + + if (fd == NULL) + { + EMSG2(_(e_notopen), tempname); + goto done; + } + + fseek(fd, 0L, SEEK_END); + len = ftell(fd); /* get size of temp file */ + fseek(fd, 0L, SEEK_SET); + + buffer = alloc(len + 1); + if (buffer != NULL) + i = (int)fread((char *)buffer, (size_t)1, (size_t)len, fd); + fclose(fd); + mch_remove(tempname); + if (buffer == NULL) + goto done; +#ifdef VMS + len = i; /* VMS doesn't give us what we asked for... */ +#endif + if (i != len) + { + EMSG2(_(e_notread), tempname); + vim_free(buffer); + buffer = NULL; + } + else + buffer[len] = '\0'; /* make sure the buffer is terminated */ + +done: + vim_free(tempname); + return buffer; +} +#endif + +/* + * Free the list of files returned by expand_wildcards() or other expansion + * functions. + */ + void +FreeWild(count, files) + int count; + char_u **files; +{ + if (files == NULL || count <= 0) + return; +#if defined(__EMX__) && defined(__ALWAYS_HAS_TRAILING_NULL_POINTER) /* XXX */ + /* + * Is this still OK for when other functions than expand_wildcards() have + * been used??? + */ + _fnexplodefree((char **)files); +#else + while (count--) + vim_free(files[count]); + vim_free(files); +#endif +} + +/* + * return TRUE when need to go to Insert mode because of 'insertmode'. + * Don't do this when still processing a command or a mapping. + * Don't do this when inside a ":normal" command. + */ + int +goto_im() +{ + return (p_im && stuff_empty() && typebuf_typed()); +} |