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bace79a571
about spacing in style_parse.
205 lines
4.7 KiB
C
205 lines
4.7 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
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* Copyright (c) 2014 Tiago Cunha <tcunha@users.sourceforge.net>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/types.h>
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#include <string.h>
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#include "tmux.h"
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/* Mask for bits not included in style. */
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#define STYLE_ATTR_MASK (~GRID_ATTR_CHARSET)
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/* Default style. */
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static struct style style_default = {
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{ 0, 0, 8, 8, { { ' ' }, 0, 1, 1 } }
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};
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/*
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* Parse an embedded style of the form "fg=colour,bg=colour,bright,...".
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* Note that this adds onto the given style, so it must have been initialized
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* alredy.
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*/
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int
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style_parse(struct style *sy, const struct grid_cell *base, const char *in)
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{
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struct style saved;
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const char delimiters[] = " ,";
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char tmp[32];
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int value;
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size_t end;
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if (*in == '\0')
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return (0);
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style_copy(&saved, sy);
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do {
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while (*in != '\0' && strchr(delimiters, *in) != NULL) {
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in++;
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end--;
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}
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if (*in == '\0')
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break;
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end = strcspn(in, delimiters);
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if (end > (sizeof tmp) - 1)
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goto error;
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memcpy(tmp, in, end);
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tmp[end] = '\0';
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if (strcasecmp(tmp, "default") == 0) {
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sy->gc.fg = base->fg;
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sy->gc.bg = base->bg;
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sy->gc.attr = base->attr;
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sy->gc.flags = base->flags;
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} else if (end > 3 && strncasecmp(tmp + 1, "g=", 2) == 0) {
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if ((value = colour_fromstring(tmp + 3)) == -1)
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goto error;
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if (*in == 'f' || *in == 'F') {
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if (value != 8)
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sy->gc.fg = value;
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else
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sy->gc.fg = base->fg;
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} else if (*in == 'b' || *in == 'B') {
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if (value != 8)
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sy->gc.bg = value;
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else
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sy->gc.bg = base->bg;
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} else
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goto error;
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} else if (strcasecmp(tmp, "none") == 0)
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sy->gc.attr = 0;
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else if (end > 2 && strncasecmp(tmp, "no", 2) == 0) {
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if ((value = attributes_fromstring(tmp + 2)) == -1)
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goto error;
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sy->gc.attr &= ~value;
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} else {
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if ((value = attributes_fromstring(tmp)) == -1)
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goto error;
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sy->gc.attr |= value;
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}
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in += end + strspn(in + end, delimiters);
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} while (*in != '\0');
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return (0);
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error:
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style_copy(sy, &saved);
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return (-1);
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}
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/* Convert style to a string. */
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const char *
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style_tostring(struct style *sy)
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{
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struct grid_cell *gc = &sy->gc;
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int off = 0;
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const char *comma = "";
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static char s[256];
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*s = '\0';
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if (gc->fg != 8) {
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off += xsnprintf(s + off, sizeof s - off, "%sfg=%s", comma,
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colour_tostring(gc->fg));
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comma = ",";
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}
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if (gc->bg != 8) {
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off += xsnprintf(s + off, sizeof s - off, "%sbg=%s", comma,
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colour_tostring(gc->bg));
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comma = ",";
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}
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if (gc->attr != 0 && gc->attr != GRID_ATTR_CHARSET) {
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xsnprintf(s + off, sizeof s - off, "%s%s", comma,
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attributes_tostring(gc->attr));
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comma = ",";
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}
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if (*s == '\0')
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return ("default");
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return (s);
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}
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/* Apply a style. */
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void
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style_apply(struct grid_cell *gc, struct options *oo, const char *name)
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{
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struct style *sy;
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memcpy(gc, &grid_default_cell, sizeof *gc);
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sy = options_get_style(oo, name);
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gc->fg = sy->gc.fg;
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gc->bg = sy->gc.bg;
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gc->attr |= sy->gc.attr;
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}
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/* Apply a style, updating if default. */
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void
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style_apply_update(struct grid_cell *gc, struct options *oo, const char *name)
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{
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struct style *sy;
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sy = options_get_style(oo, name);
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if (sy->gc.fg != 8)
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gc->fg = sy->gc.fg;
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if (sy->gc.bg != 8)
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gc->bg = sy->gc.bg;
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if (sy->gc.attr != 0)
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gc->attr |= sy->gc.attr;
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}
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/* Initialize style from cell. */
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void
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style_set(struct style *sy, const struct grid_cell *gc)
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{
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memcpy(sy, &style_default, sizeof *sy);
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memcpy(&sy->gc, gc, sizeof sy->gc);
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}
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/* Copy style. */
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void
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style_copy(struct style *dst, struct style *src)
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{
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memcpy(dst, src, sizeof *dst);
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}
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/* Check if two styles are the same. */
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int
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style_equal(struct style *sy1, struct style *sy2)
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{
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struct grid_cell *gc1 = &sy1->gc;
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struct grid_cell *gc2 = &sy2->gc;
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if (gc1->fg != gc2->fg)
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return (0);
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if (gc1->bg != gc2->bg)
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return (0);
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if ((gc1->attr & STYLE_ATTR_MASK) != (gc2->attr & STYLE_ATTR_MASK))
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return (0);
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return (1);
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}
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/* Is this style default? */
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int
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style_is_default(struct style *sy)
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{
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return (style_equal(sy, &style_default));
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}
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