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Diffstat (limited to 'src/vi.c')
| -rw-r--r-- | src/vi.c | 1158 |
1 files changed, 1158 insertions, 0 deletions
diff --git a/src/vi.c b/src/vi.c new file mode 100644 index 0000000..c918acc --- /dev/null +++ b/src/vi.c @@ -0,0 +1,1158 @@ +/* $NetBSD: vi.c,v 1.43 2012/01/16 14:57:45 christos Exp $ */ + +/*- + * Copyright (c) 1992, 1993 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Christos Zoulas of Cornell University. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "config.h" +#include <stdlib.h> +#include <unistd.h> +#include <limits.h> +#include <sys/wait.h> + +#if !defined(lint) && !defined(SCCSID) +#if 0 +static char sccsid[] = "@(#)vi.c 8.1 (Berkeley) 6/4/93"; +#else +__RCSID("$NetBSD: vi.c,v 1.43 2012/01/16 14:57:45 christos Exp $"); +#endif +#endif /* not lint && not SCCSID */ + +/* + * vi.c: Vi mode commands. + */ +#include "el.h" + +private el_action_t cv_action(EditLine *, Int); +private el_action_t cv_paste(EditLine *, Int); + +/* cv_action(): + * Handle vi actions. + */ +private el_action_t +cv_action(EditLine *el, Int c) +{ + + if (el->el_chared.c_vcmd.action != NOP) { + /* 'cc', 'dd' and (possibly) friends */ + if (c != (Int)el->el_chared.c_vcmd.action) + return CC_ERROR; + + if (!(c & YANK)) + cv_undo(el); + cv_yank(el, el->el_line.buffer, + (int)(el->el_line.lastchar - el->el_line.buffer)); + el->el_chared.c_vcmd.action = NOP; + el->el_chared.c_vcmd.pos = 0; + if (!(c & YANK)) { + el->el_line.lastchar = el->el_line.buffer; + el->el_line.cursor = el->el_line.buffer; + } + if (c & INSERT) + el->el_map.current = el->el_map.key; + + return CC_REFRESH; + } + el->el_chared.c_vcmd.pos = el->el_line.cursor; + el->el_chared.c_vcmd.action = c; + return CC_ARGHACK; +} + +/* cv_paste(): + * Paste previous deletion before or after the cursor + */ +private el_action_t +cv_paste(EditLine *el, Int c) +{ + c_kill_t *k = &el->el_chared.c_kill; + size_t len = (size_t)(k->last - k->buf); + + if (k->buf == NULL || len == 0) + return CC_ERROR; +#ifdef DEBUG_PASTE + (void) fprintf(el->el_errfile, "Paste: \"%.*s\"\n", (int)len, k->buf); +#endif + + cv_undo(el); + + if (!c && el->el_line.cursor < el->el_line.lastchar) + el->el_line.cursor++; + + c_insert(el, (int)len); + if (el->el_line.cursor + len > el->el_line.lastchar) + return CC_ERROR; + (void) memcpy(el->el_line.cursor, k->buf, len * + sizeof(*el->el_line.cursor)); + + return CC_REFRESH; +} + + +/* vi_paste_next(): + * Vi paste previous deletion to the right of the cursor + * [p] + */ +protected el_action_t +/*ARGSUSED*/ +vi_paste_next(EditLine *el, Int c __attribute__((__unused__))) +{ + + return cv_paste(el, 0); +} + + +/* vi_paste_prev(): + * Vi paste previous deletion to the left of the cursor + * [P] + */ +protected el_action_t +/*ARGSUSED*/ +vi_paste_prev(EditLine *el, Int c __attribute__((__unused__))) +{ + + return cv_paste(el, 1); +} + + +/* vi_prev_big_word(): + * Vi move to the previous space delimited word + * [B] + */ +protected el_action_t +/*ARGSUSED*/ +vi_prev_big_word(EditLine *el, Int c __attribute__((__unused__))) +{ + + if (el->el_line.cursor == el->el_line.buffer) + return CC_ERROR; + + el->el_line.cursor = cv_prev_word(el->el_line.cursor, + el->el_line.buffer, + el->el_state.argument, + cv__isWord); + + if (el->el_chared.c_vcmd.action != NOP) { + cv_delfini(el); + return CC_REFRESH; + } + return CC_CURSOR; +} + + +/* vi_prev_word(): + * Vi move to the previous word + * [b] + */ +protected el_action_t +/*ARGSUSED*/ +vi_prev_word(EditLine *el, Int c __attribute__((__unused__))) +{ + + if (el->el_line.cursor == el->el_line.buffer) + return CC_ERROR; + + el->el_line.cursor = cv_prev_word(el->el_line.cursor, + el->el_line.buffer, + el->el_state.argument, + cv__isword); + + if (el->el_chared.c_vcmd.action != NOP) { + cv_delfini(el); + return CC_REFRESH; + } + return CC_CURSOR; +} + + +/* vi_next_big_word(): + * Vi move to the next space delimited word + * [W] + */ +protected el_action_t +/*ARGSUSED*/ +vi_next_big_word(EditLine *el, Int c __attribute__((__unused__))) +{ + + if (el->el_line.cursor >= el->el_line.lastchar - 1) + return CC_ERROR; + + el->el_line.cursor = cv_next_word(el, el->el_line.cursor, + el->el_line.lastchar, el->el_state.argument, cv__isWord); + + if (el->el_map.type == MAP_VI) + if (el->el_chared.c_vcmd.action != NOP) { + cv_delfini(el); + return CC_REFRESH; + } + return CC_CURSOR; +} + + +/* vi_next_word(): + * Vi move to the next word + * [w] + */ +protected el_action_t +/*ARGSUSED*/ +vi_next_word(EditLine *el, Int c __attribute__((__unused__))) +{ + + if (el->el_line.cursor >= el->el_line.lastchar - 1) + return CC_ERROR; + + el->el_line.cursor = cv_next_word(el, el->el_line.cursor, + el->el_line.lastchar, el->el_state.argument, cv__isword); + + if (el->el_map.type == MAP_VI) + if (el->el_chared.c_vcmd.action != NOP) { + cv_delfini(el); + return CC_REFRESH; + } + return CC_CURSOR; +} + + +/* vi_change_case(): + * Vi change case of character under the cursor and advance one character + * [~] + */ +protected el_action_t +vi_change_case(EditLine *el, Int c) +{ + int i; + + if (el->el_line.cursor >= el->el_line.lastchar) + return CC_ERROR; + cv_undo(el); + for (i = 0; i < el->el_state.argument; i++) { + + c = *el->el_line.cursor; + if (Isupper(c)) + *el->el_line.cursor = Tolower(c); + else if (Islower(c)) + *el->el_line.cursor = Toupper(c); + + if (++el->el_line.cursor >= el->el_line.lastchar) { + el->el_line.cursor--; + re_fastaddc(el); + break; + } + re_fastaddc(el); + } + return CC_NORM; +} + + +/* vi_change_meta(): + * Vi change prefix command + * [c] + */ +protected el_action_t +/*ARGSUSED*/ +vi_change_meta(EditLine *el, Int c __attribute__((__unused__))) +{ + + /* + * Delete with insert == change: first we delete and then we leave in + * insert mode. + */ + return cv_action(el, DELETE | INSERT); +} + + +/* vi_insert_at_bol(): + * Vi enter insert mode at the beginning of line + * [I] + */ +protected el_action_t +/*ARGSUSED*/ +vi_insert_at_bol(EditLine *el, Int c __attribute__((__unused__))) +{ + + el->el_line.cursor = el->el_line.buffer; + cv_undo(el); + el->el_map.current = el->el_map.key; + return CC_CURSOR; +} + + +/* vi_replace_char(): + * Vi replace character under the cursor with the next character typed + * [r] + */ +protected el_action_t +/*ARGSUSED*/ +vi_replace_char(EditLine *el, Int c __attribute__((__unused__))) +{ + + if (el->el_line.cursor >= el->el_line.lastchar) + return CC_ERROR; + + el->el_map.current = el->el_map.key; + el->el_state.inputmode = MODE_REPLACE_1; + cv_undo(el); + return CC_ARGHACK; +} + + +/* vi_replace_mode(): + * Vi enter replace mode + * [R] + */ +protected el_action_t +/*ARGSUSED*/ +vi_replace_mode(EditLine *el, Int c __attribute__((__unused__))) +{ + + el->el_map.current = el->el_map.key; + el->el_state.inputmode = MODE_REPLACE; + cv_undo(el); + return CC_NORM; +} + + +/* vi_substitute_char(): + * Vi replace character under the cursor and enter insert mode + * [s] + */ +protected el_action_t +/*ARGSUSED*/ +vi_substitute_char(EditLine *el, Int c __attribute__((__unused__))) +{ + + c_delafter(el, el->el_state.argument); + el->el_map.current = el->el_map.key; + return CC_REFRESH; +} + + +/* vi_substitute_line(): + * Vi substitute entire line + * [S] + */ +protected el_action_t +/*ARGSUSED*/ +vi_substitute_line(EditLine *el, Int c __attribute__((__unused__))) +{ + + cv_undo(el); + cv_yank(el, el->el_line.buffer, + (int)(el->el_line.lastchar - el->el_line.buffer)); + (void) em_kill_line(el, 0); + el->el_map.current = el->el_map.key; + return CC_REFRESH; +} + + +/* vi_change_to_eol(): + * Vi change to end of line + * [C] + */ +protected el_action_t +/*ARGSUSED*/ +vi_change_to_eol(EditLine *el, Int c __attribute__((__unused__))) +{ + + cv_undo(el); + cv_yank(el, el->el_line.cursor, + (int)(el->el_line.lastchar - el->el_line.cursor)); + (void) ed_kill_line(el, 0); + el->el_map.current = el->el_map.key; + return CC_REFRESH; +} + + +/* vi_insert(): + * Vi enter insert mode + * [i] + */ +protected el_action_t +/*ARGSUSED*/ +vi_insert(EditLine *el, Int c __attribute__((__unused__))) +{ + + el->el_map.current = el->el_map.key; + cv_undo(el); + return CC_NORM; +} + + +/* vi_add(): + * Vi enter insert mode after the cursor + * [a] + */ +protected el_action_t +/*ARGSUSED*/ +vi_add(EditLine *el, Int c __attribute__((__unused__))) +{ + int ret; + + el->el_map.current = el->el_map.key; + if (el->el_line.cursor < el->el_line.lastchar) { + el->el_line.cursor++; + if (el->el_line.cursor > el->el_line.lastchar) + el->el_line.cursor = el->el_line.lastchar; + ret = CC_CURSOR; + } else + ret = CC_NORM; + + cv_undo(el); + + return (el_action_t)ret; +} + + +/* vi_add_at_eol(): + * Vi enter insert mode at end of line + * [A] + */ +protected el_action_t +/*ARGSUSED*/ +vi_add_at_eol(EditLine *el, Int c __attribute__((__unused__))) +{ + + el->el_map.current = el->el_map.key; + el->el_line.cursor = el->el_line.lastchar; + cv_undo(el); + return CC_CURSOR; +} + + +/* vi_delete_meta(): + * Vi delete prefix command + * [d] + */ +protected el_action_t +/*ARGSUSED*/ +vi_delete_meta(EditLine *el, Int c __attribute__((__unused__))) +{ + + return cv_action(el, DELETE); +} + + +/* vi_end_big_word(): + * Vi move to the end of the current space delimited word + * [E] + */ +protected el_action_t +/*ARGSUSED*/ +vi_end_big_word(EditLine *el, Int c __attribute__((__unused__))) +{ + + if (el->el_line.cursor == el->el_line.lastchar) + return CC_ERROR; + + el->el_line.cursor = cv__endword(el->el_line.cursor, + el->el_line.lastchar, el->el_state.argument, cv__isWord); + + if (el->el_chared.c_vcmd.action != NOP) { + el->el_line.cursor++; + cv_delfini(el); + return CC_REFRESH; + } + return CC_CURSOR; +} + + +/* vi_end_word(): + * Vi move to the end of the current word + * [e] + */ +protected el_action_t +/*ARGSUSED*/ +vi_end_word(EditLine *el, Int c __attribute__((__unused__))) +{ + + if (el->el_line.cursor == el->el_line.lastchar) + return CC_ERROR; + + el->el_line.cursor = cv__endword(el->el_line.cursor, + el->el_line.lastchar, el->el_state.argument, cv__isword); + + if (el->el_chared.c_vcmd.action != NOP) { + el->el_line.cursor++; + cv_delfini(el); + return CC_REFRESH; + } + return CC_CURSOR; +} + + +/* vi_undo(): + * Vi undo last change + * [u] + */ +protected el_action_t +/*ARGSUSED*/ +vi_undo(EditLine *el, Int c __attribute__((__unused__))) +{ + c_undo_t un = el->el_chared.c_undo; + + if (un.len == -1) + return CC_ERROR; + + /* switch line buffer and undo buffer */ + el->el_chared.c_undo.buf = el->el_line.buffer; + el->el_chared.c_undo.len = el->el_line.lastchar - el->el_line.buffer; + el->el_chared.c_undo.cursor = + (int)(el->el_line.cursor - el->el_line.buffer); + el->el_line.limit = un.buf + (el->el_line.limit - el->el_line.buffer); + el->el_line.buffer = un.buf; + el->el_line.cursor = un.buf + un.cursor; + el->el_line.lastchar = un.buf + un.len; + + return CC_REFRESH; +} + + +/* vi_command_mode(): + * Vi enter command mode (use alternative key bindings) + * [<ESC>] + */ +protected el_action_t +/*ARGSUSED*/ +vi_command_mode(EditLine *el, Int c __attribute__((__unused__))) +{ + + /* [Esc] cancels pending action */ + el->el_chared.c_vcmd.action = NOP; + el->el_chared.c_vcmd.pos = 0; + + el->el_state.doingarg = 0; + + el->el_state.inputmode = MODE_INSERT; + el->el_map.current = el->el_map.alt; +#ifdef VI_MOVE + if (el->el_line.cursor > el->el_line.buffer) + el->el_line.cursor--; +#endif + return CC_CURSOR; +} + + +/* vi_zero(): + * Vi move to the beginning of line + * [0] + */ +protected el_action_t +vi_zero(EditLine *el, Int c) +{ + + if (el->el_state.doingarg) + return ed_argument_digit(el, c); + + el->el_line.cursor = el->el_line.buffer; + if (el->el_chared.c_vcmd.action != NOP) { + cv_delfini(el); + return CC_REFRESH; + } + return CC_CURSOR; +} + + +/* vi_delete_prev_char(): + * Vi move to previous character (backspace) + * [^H] in insert mode only + */ +protected el_action_t +/*ARGSUSED*/ +vi_delete_prev_char(EditLine *el, Int c __attribute__((__unused__))) +{ + + if (el->el_line.cursor <= el->el_line.buffer) + return CC_ERROR; + + c_delbefore1(el); + el->el_line.cursor--; + return CC_REFRESH; +} + + +/* vi_list_or_eof(): + * Vi list choices for completion or indicate end of file if empty line + * [^D] + */ +protected el_action_t +/*ARGSUSED*/ +vi_list_or_eof(EditLine *el, Int c) +{ + + if (el->el_line.cursor == el->el_line.lastchar) { + if (el->el_line.cursor == el->el_line.buffer) { + terminal_writec(el, c); /* then do a EOF */ + return CC_EOF; + } else { + /* + * Here we could list completions, but it is an + * error right now + */ + terminal_beep(el); + return CC_ERROR; + } + } else { +#ifdef notyet + re_goto_bottom(el); + *el->el_line.lastchar = '\0'; /* just in case */ + return CC_LIST_CHOICES; +#else + /* + * Just complain for now. + */ + terminal_beep(el); + return CC_ERROR; +#endif + } +} + + +/* vi_kill_line_prev(): + * Vi cut from beginning of line to cursor + * [^U] + */ +protected el_action_t +/*ARGSUSED*/ +vi_kill_line_prev(EditLine *el, Int c __attribute__((__unused__))) +{ + Char *kp, *cp; + + cp = el->el_line.buffer; + kp = el->el_chared.c_kill.buf; + while (cp < el->el_line.cursor) + *kp++ = *cp++; /* copy it */ + el->el_chared.c_kill.last = kp; + c_delbefore(el, (int)(el->el_line.cursor - el->el_line.buffer)); + el->el_line.cursor = el->el_line.buffer; /* zap! */ + return CC_REFRESH; +} + + +/* vi_search_prev(): + * Vi search history previous + * [?] + */ +protected el_action_t +/*ARGSUSED*/ +vi_search_prev(EditLine *el, Int c __attribute__((__unused__))) +{ + + return cv_search(el, ED_SEARCH_PREV_HISTORY); +} + + +/* vi_search_next(): + * Vi search history next + * [/] + */ +protected el_action_t +/*ARGSUSED*/ +vi_search_next(EditLine *el, Int c __attribute__((__unused__))) +{ + + return cv_search(el, ED_SEARCH_NEXT_HISTORY); +} + + +/* vi_repeat_search_next(): + * Vi repeat current search in the same search direction + * [n] + */ +protected el_action_t +/*ARGSUSED*/ +vi_repeat_search_next(EditLine *el, Int c __attribute__((__unused__))) +{ + + if (el->el_search.patlen == 0) + return CC_ERROR; + else + return cv_repeat_srch(el, el->el_search.patdir); +} + + +/* vi_repeat_search_prev(): + * Vi repeat current search in the opposite search direction + * [N] + */ +/*ARGSUSED*/ +protected el_action_t +vi_repeat_search_prev(EditLine *el, Int c __attribute__((__unused__))) +{ + + if (el->el_search.patlen == 0) + return CC_ERROR; + else + return (cv_repeat_srch(el, + el->el_search.patdir == ED_SEARCH_PREV_HISTORY ? + ED_SEARCH_NEXT_HISTORY : ED_SEARCH_PREV_HISTORY)); +} + + +/* vi_next_char(): + * Vi move to the character specified next + * [f] + */ +protected el_action_t +/*ARGSUSED*/ +vi_next_char(EditLine *el, Int c __attribute__((__unused__))) +{ + return cv_csearch(el, CHAR_FWD, -1, el->el_state.argument, 0); +} + + +/* vi_prev_char(): + * Vi move to the character specified previous + * [F] + */ +protected el_action_t +/*ARGSUSED*/ +vi_prev_char(EditLine *el, Int c __attribute__((__unused__))) +{ + return cv_csearch(el, CHAR_BACK, -1, el->el_state.argument, 0); +} + + +/* vi_to_next_char(): + * Vi move up to the character specified next + * [t] + */ +protected el_action_t +/*ARGSUSED*/ +vi_to_next_char(EditLine *el, Int c __attribute__((__unused__))) +{ + return cv_csearch(el, CHAR_FWD, -1, el->el_state.argument, 1); +} + + +/* vi_to_prev_char(): + * Vi move up to the character specified previous + * [T] + */ +protected el_action_t +/*ARGSUSED*/ +vi_to_prev_char(EditLine *el, Int c __attribute__((__unused__))) +{ + return cv_csearch(el, CHAR_BACK, -1, el->el_state.argument, 1); +} + + +/* vi_repeat_next_char(): + * Vi repeat current character search in the same search direction + * [;] + */ +protected el_action_t +/*ARGSUSED*/ +vi_repeat_next_char(EditLine *el, Int c __attribute__((__unused__))) +{ + + return cv_csearch(el, el->el_search.chadir, el->el_search.chacha, + el->el_state.argument, el->el_search.chatflg); +} + + +/* vi_repeat_prev_char(): + * Vi repeat current character search in the opposite search direction + * [,] + */ +protected el_action_t +/*ARGSUSED*/ +vi_repeat_prev_char(EditLine *el, Int c __attribute__((__unused__))) +{ + el_action_t r; + int dir = el->el_search.chadir; + + r = cv_csearch(el, -dir, el->el_search.chacha, + el->el_state.argument, el->el_search.chatflg); + el->el_search.chadir = dir; + return r; +} + + +/* vi_match(): + * Vi go to matching () {} or [] + * [%] + */ +protected el_action_t +/*ARGSUSED*/ +vi_match(EditLine *el, Int c __attribute__((__unused__))) +{ + const Char match_chars[] = STR("()[]{}"); + Char *cp; + size_t delta, i, count; + Char o_ch, c_ch; + + *el->el_line.lastchar = '\0'; /* just in case */ + + i = Strcspn(el->el_line.cursor, match_chars); + o_ch = el->el_line.cursor[i]; + if (o_ch == 0) + return CC_ERROR; + delta = (size_t)(Strchr(match_chars, o_ch) - match_chars); + c_ch = match_chars[delta ^ 1]; + count = 1; + delta = 1 - (delta & 1) * 2; + + for (cp = &el->el_line.cursor[i]; count; ) { + cp += delta; + if (cp < el->el_line.buffer || cp >= el->el_line.lastchar) + return CC_ERROR; + if (*cp == o_ch) + count++; + else if (*cp == c_ch) + count--; + } + + el->el_line.cursor = cp; + + if (el->el_chared.c_vcmd.action != NOP) { + /* NB posix says char under cursor should NOT be deleted + for -ve delta - this is different to netbsd vi. */ + if (delta > 0) + el->el_line.cursor++; + cv_delfini(el); + return CC_REFRESH; + } + return CC_CURSOR; +} + +/* vi_undo_line(): + * Vi undo all changes to line + * [U] + */ +protected el_action_t +/*ARGSUSED*/ +vi_undo_line(EditLine *el, Int c __attribute__((__unused__))) +{ + + cv_undo(el); + return hist_get(el); +} + +/* vi_to_column(): + * Vi go to specified column + * [|] + * NB netbsd vi goes to screen column 'n', posix says nth character + */ +protected el_action_t +/*ARGSUSED*/ +vi_to_column(EditLine *el, Int c __attribute__((__unused__))) +{ + + el->el_line.cursor = el->el_line.buffer; + el->el_state.argument--; + return ed_next_char(el, 0); +} + +/* vi_yank_end(): + * Vi yank to end of line + * [Y] + */ +protected el_action_t +/*ARGSUSED*/ +vi_yank_end(EditLine *el, Int c __attribute__((__unused__))) +{ + + cv_yank(el, el->el_line.cursor, + (int)(el->el_line.lastchar - el->el_line.cursor)); + return CC_REFRESH; +} + +/* vi_yank(): + * Vi yank + * [y] + */ +protected el_action_t +/*ARGSUSED*/ +vi_yank(EditLine *el, Int c __attribute__((__unused__))) +{ + + return cv_action(el, YANK); +} + +/* vi_comment_out(): + * Vi comment out current command + * [#] + */ +protected el_action_t +/*ARGSUSED*/ +vi_comment_out(EditLine *el, Int c __attribute__((__unused__))) +{ + + el->el_line.cursor = el->el_line.buffer; + c_insert(el, 1); + *el->el_line.cursor = '#'; + re_refresh(el); + return ed_newline(el, 0); +} + +/* vi_alias(): + * Vi include shell alias + * [@] + * NB: posix implies that we should enter insert mode, however + * this is against historical precedent... + */ +#ifdef __weak_reference +__weakref_visible char *my_get_alias_text(const char *) + __weak_reference(get_alias_text); +#endif +protected el_action_t +/*ARGSUSED*/ +vi_alias(EditLine *el __attribute__((__unused__)), Int c __attribute__((__unused__))) +{ +#ifdef __weak_reference + char alias_name[3]; + char *alias_text; + + if (my_get_alias_text == 0) { + return CC_ERROR; + } + + alias_name[0] = '_'; + alias_name[2] = 0; + if (el_getc(el, &alias_name[1]) != 1) + return CC_ERROR; + + alias_text = my_get_alias_text(alias_name); + if (alias_text != NULL) + FUN(el,push)(el, ct_decode_string(alias_text, &el->el_scratch)); + return CC_NORM; +#else + return CC_ERROR; +#endif +} + +/* vi_to_history_line(): + * Vi go to specified history file line. + * [G] + */ +protected el_action_t +/*ARGSUSED*/ +vi_to_history_line(EditLine *el, Int c __attribute__((__unused__))) +{ + int sv_event_no = el->el_history.eventno; + el_action_t rval; + + + if (el->el_history.eventno == 0) { + (void) Strncpy(el->el_history.buf, el->el_line.buffer, + EL_BUFSIZ); + el->el_history.last = el->el_history.buf + + (el->el_line.lastchar - el->el_line.buffer); + } + + /* Lack of a 'count' means oldest, not 1 */ + if (!el->el_state.doingarg) { + el->el_history.eventno = 0x7fffffff; + hist_get(el); + } else { + /* This is brain dead, all the rest of this code counts + * upwards going into the past. Here we need count in the + * other direction (to match the output of fc -l). + * I could change the world, but this seems to suffice. + */ + el->el_history.eventno = 1; + if (hist_get(el) == CC_ERROR) + return CC_ERROR; + el->el_history.eventno = 1 + el->el_history.ev.num + - el->el_state.argument; + if (el->el_history.eventno < 0) { + el->el_history.eventno = sv_event_no; + return CC_ERROR; + } + } + rval = hist_get(el); + if (rval == CC_ERROR) + el->el_history.eventno = sv_event_no; + return rval; +} + +/* vi_histedit(): + * Vi edit history line with vi + * [v] + */ +protected el_action_t +/*ARGSUSED*/ +vi_histedit(EditLine *el, Int c __attribute__((__unused__))) +{ + int fd; + pid_t pid; + ssize_t st; + int status; + char tempfile[] = "/tmp/histedit.XXXXXXXXXX"; + char *cp = NULL; + size_t len; + Char *line = NULL; + + if (el->el_state.doingarg) { + if (vi_to_history_line(el, 0) == CC_ERROR) + return CC_ERROR; + } + + fd = mkstemp(tempfile); + if (fd < 0) + return CC_ERROR; + len = (size_t)(el->el_line.lastchar - el->el_line.buffer); +#define TMP_BUFSIZ (EL_BUFSIZ * MB_LEN_MAX) + cp = el_malloc(TMP_BUFSIZ * sizeof(*cp)); + if (cp == NULL) + goto error; + line = el_malloc(len * sizeof(*line) + 1); + if (line == NULL) + goto error; + Strncpy(line, el->el_line.buffer, len); + line[len] = '\0'; + ct_wcstombs(cp, line, TMP_BUFSIZ - 1); + cp[TMP_BUFSIZ - 1] = '\0'; + len = strlen(cp); + write(fd, cp, len); + write(fd, "\n", (size_t)1); + pid = fork(); + switch (pid) { + case -1: + goto error; + case 0: + close(fd); + execlp("vi", "vi", tempfile, (char *)NULL); + exit(0); + /*NOTREACHED*/ + default: + while (waitpid(pid, &status, 0) != pid) + continue; + lseek(fd, (off_t)0, SEEK_SET); + st = read(fd, cp, TMP_BUFSIZ); + if (st > 0) { + len = (size_t)(el->el_line.lastchar - + el->el_line.buffer); + len = ct_mbstowcs(el->el_line.buffer, cp, len); + if (len > 0 && el->el_line.buffer[len -1] == '\n') + --len; + } + else + len = 0; + el->el_line.cursor = el->el_line.buffer; + el->el_line.lastchar = el->el_line.buffer + len; + el_free(cp); + el_free(line); + break; + } + + close(fd); + unlink(tempfile); + /* return CC_REFRESH; */ + return ed_newline(el, 0); +error: + el_free(line); + el_free(cp); + close(fd); + unlink(tempfile); + return CC_ERROR; +} + +/* vi_history_word(): + * Vi append word from previous input line + * [_] + * Who knows where this one came from! + * '_' in vi means 'entire current line', so 'cc' is a synonym for 'c_' + */ +protected el_action_t +/*ARGSUSED*/ +vi_history_word(EditLine *el, Int c __attribute__((__unused__))) +{ + const Char *wp = HIST_FIRST(el); + const Char *wep, *wsp; + int len; + Char *cp; + const Char *lim; + + if (wp == NULL) + return CC_ERROR; + + wep = wsp = 0; + do { + while (Isspace(*wp)) + wp++; + if (*wp == 0) + break; + wsp = wp; + while (*wp && !Isspace(*wp)) + wp++; + wep = wp; + } while ((!el->el_state.doingarg || --el->el_state.argument > 0) + && *wp != 0); + + if (wsp == 0 || (el->el_state.doingarg && el->el_state.argument != 0)) + return CC_ERROR; + + cv_undo(el); + len = (int)(wep - wsp); + if (el->el_line.cursor < el->el_line.lastchar) + el->el_line.cursor++; + c_insert(el, len + 1); + cp = el->el_line.cursor; + lim = el->el_line.limit; + if (cp < lim) + *cp++ = ' '; + while (wsp < wep && cp < lim) + *cp++ = *wsp++; + el->el_line.cursor = cp; + + el->el_map.current = el->el_map.key; + return CC_REFRESH; +} + +/* vi_redo(): + * Vi redo last non-motion command + * [.] + */ +protected el_action_t +/*ARGSUSED*/ +vi_redo(EditLine *el, Int c __attribute__((__unused__))) +{ + c_redo_t *r = &el->el_chared.c_redo; + + if (!el->el_state.doingarg && r->count) { + el->el_state.doingarg = 1; + el->el_state.argument = r->count; + } + + el->el_chared.c_vcmd.pos = el->el_line.cursor; + el->el_chared.c_vcmd.action = r->action; + if (r->pos != r->buf) { + if (r->pos + 1 > r->lim) + /* sanity */ + r->pos = r->lim - 1; + r->pos[0] = 0; + FUN(el,push)(el, r->buf); + } + + el->el_state.thiscmd = r->cmd; + el->el_state.thisch = r->ch; + return (*el->el_map.func[r->cmd])(el, r->ch); +} |