diff options
Diffstat (limited to 'src/buffer.h')
| -rw-r--r-- | src/buffer.h | 52 |
1 files changed, 26 insertions, 26 deletions
diff --git a/src/buffer.h b/src/buffer.h index 890cabe24ec..7dd1e967afd 100644 --- a/src/buffer.h +++ b/src/buffer.h @@ -25,52 +25,52 @@ Boston, MA 02111-1307, USA. */ /* These macros come in pairs, one for the char position and one for the byte position. */ -/* Position of beginning of buffer. */ +/* Position of beginning of buffer. */ #define BEG (1) #define BEG_BYTE (1) -/* Position of beginning of accessible range of buffer. */ +/* Position of beginning of accessible range of buffer. */ #define BEGV (current_buffer->begv) #define BEGV_BYTE (current_buffer->begv_byte) /* Position of point in buffer. The "+ 0" makes this - not an l-value, so you can't assign to it. Use SET_PT instead. */ + not an l-value, so you can't assign to it. Use SET_PT instead. */ #define PT (current_buffer->pt + 0) #define PT_BYTE (current_buffer->pt_byte + 0) -/* Position of gap in buffer. */ +/* Position of gap in buffer. */ #define GPT (current_buffer->text->gpt) #define GPT_BYTE (current_buffer->text->gpt_byte) -/* Position of end of accessible range of buffer. */ +/* Position of end of accessible range of buffer. */ #define ZV (current_buffer->zv) #define ZV_BYTE (current_buffer->zv_byte) -/* Position of end of buffer. */ +/* Position of end of buffer. */ #define Z (current_buffer->text->z) #define Z_BYTE (current_buffer->text->z_byte) /* Macros for the addresses of places in the buffer. */ -/* Address of beginning of buffer. */ +/* Address of beginning of buffer. */ #define BEG_ADDR (current_buffer->text->beg) -/* Address of beginning of accessible range of buffer. */ +/* Address of beginning of accessible range of buffer. */ #define BEGV_ADDR (BYTE_POS_ADDR (current_buffer->begv_byte)) -/* Address of point in buffer. */ +/* Address of point in buffer. */ #define PT_ADDR (BYTE_POS_ADDR (current_buffer->pt_byte)) -/* Address of beginning of gap in buffer. */ +/* Address of beginning of gap in buffer. */ #define GPT_ADDR (current_buffer->text->beg + current_buffer->text->gpt_byte - 1) /* Address of end of gap in buffer. */ #define GAP_END_ADDR (current_buffer->text->beg + current_buffer->text->gpt_byte + current_buffer->text->gap_size - 1) -/* Address of end of accessible range of buffer. */ +/* Address of end of accessible range of buffer. */ #define ZV_ADDR (BYTE_POS_ADDR (current_buffer->zv_byte)) -/* Address of end of buffer. */ +/* Address of end of buffer. */ #define Z_ADDR (current_buffer->text->beg + current_buffer->text->gap_size + current_buffer->text->z_byte - 1) /* Size of gap. */ @@ -101,27 +101,27 @@ Boston, MA 02111-1307, USA. */ /* Similar macros to operate on a specified buffer. Note that many of these evaluate the buffer argument more than once. */ -/* Position of beginning of buffer. */ +/* Position of beginning of buffer. */ #define BUF_BEG(buf) (1) #define BUF_BEG_BYTE(buf) (1) -/* Position of beginning of accessible range of buffer. */ +/* Position of beginning of accessible range of buffer. */ #define BUF_BEGV(buf) ((buf)->begv) #define BUF_BEGV_BYTE(buf) ((buf)->begv_byte) -/* Position of point in buffer. */ +/* Position of point in buffer. */ #define BUF_PT(buf) ((buf)->pt) #define BUF_PT_BYTE(buf) ((buf)->pt_byte) -/* Position of gap in buffer. */ +/* Position of gap in buffer. */ #define BUF_GPT(buf) ((buf)->text->gpt) #define BUF_GPT_BYTE(buf) ((buf)->text->gpt_byte) -/* Position of end of accessible range of buffer. */ +/* Position of end of accessible range of buffer. */ #define BUF_ZV(buf) ((buf)->zv) #define BUF_ZV_BYTE(buf) ((buf)->zv_byte) -/* Position of end of buffer. */ +/* Position of end of buffer. */ #define BUF_Z(buf) ((buf)->text->z) #define BUF_Z_BYTE(buf) ((buf)->text->z_byte) @@ -197,7 +197,7 @@ Boston, MA 02111-1307, USA. */ } \ } \ while (0) - + /* Macros to set PT in the current buffer, or another buffer. */ @@ -336,14 +336,14 @@ extern int _fetch_multibyte_char_len; or converting between byte positions and addresses, in a specified buffer. */ -/* Return the address of character at byte position POS in buffer BUF. +/* Return the address of character at byte position POS in buffer BUF. Note that both arguments can be computed more than once. */ #define BUF_BYTE_ADDRESS(buf, pos) \ ((buf)->text->beg + (pos) - 1 \ + ((pos) >= (buf)->text->gpt_byte ? (buf)->text->gap_size : 0)) -/* Return the address of character at char position POS in buffer BUF. +/* Return the address of character at char position POS in buffer BUF. Note that both arguments can be computed more than once. */ #define BUF_CHAR_ADDRESS(buf, pos) \ @@ -396,7 +396,7 @@ struct buffer_text e.g. happen when malloc is called. So, don't pass a pointer into a buffer's text to functions that malloc. */ unsigned char *beg; - + int gpt; /* Char pos of gap in buffer. */ int z; /* Char pos of end of buffer. */ int gpt_byte; /* Byte pos of gap in buffer. */ @@ -487,7 +487,7 @@ struct buffer this means the variable is always local in all buffers. */ #define MAX_PER_BUFFER_VARS 50 char local_flags[MAX_PER_BUFFER_VARS]; - + /* Set to the modtime of the visited file when read or written. -1 means visited file was nonexistent. 0 means visited file modtime unknown; in no case complain @@ -579,7 +579,7 @@ struct buffer So we copy it around in set_buffer_internal. This comes before `name' because it is marked in a special way. */ Lisp_Object undo_list; - + /* Analogous to mode_line_format for the line displayed at the top of windows. Nil means don't display that line. */ Lisp_Object header_line_format; @@ -712,7 +712,7 @@ struct buffer /* Incremented each time the buffer is displayed in a window. */ Lisp_Object display_count; - + /* Widths of left and right marginal areas for windows displaying this buffer. */ Lisp_Object left_margin_width, right_margin_width; @@ -729,7 +729,7 @@ struct buffer that point ends up this number of lines from the top of the window. Nil means that scrolling method isn't used. */ Lisp_Object scroll_up_aggressively; - + /* If scrolling the display because point is above the top of a window showing this buffer, try to choose a window start so that point ends up this number of lines from the bottom of the |