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color.c
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/**
* @file
* Color and attribute parsing
*
* @authors
* Copyright (C) 1996-2002,2012 Michael R. Elkins <[email protected]>
*
* @copyright
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation, either version 2 of the License, or (at your option) any later
* version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <regex.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "mutt/mutt.h"
#include "email/lib.h"
#include "mutt.h"
#include "color.h"
#include "context.h"
#include "globals.h"
#include "keymap.h"
#include "mailbox.h"
#include "menu.h"
#include "mutt_curses.h"
#include "options.h"
#include "pattern.h"
/* globals */
int *ColorQuote = NULL;
int ColorQuoteUsed;
int ColorDefs[MT_COLOR_MAX];
struct ColorLineHead ColorAttachList = STAILQ_HEAD_INITIALIZER(ColorAttachList);
struct ColorLineHead ColorBodyList = STAILQ_HEAD_INITIALIZER(ColorBodyList);
struct ColorLineHead ColorHdrList = STAILQ_HEAD_INITIALIZER(ColorHdrList);
struct ColorLineHead ColorIndexAuthorList = STAILQ_HEAD_INITIALIZER(ColorIndexAuthorList);
struct ColorLineHead ColorIndexFlagsList = STAILQ_HEAD_INITIALIZER(ColorIndexFlagsList);
struct ColorLineHead ColorIndexList = STAILQ_HEAD_INITIALIZER(ColorIndexList);
struct ColorLineHead ColorIndexSubjectList = STAILQ_HEAD_INITIALIZER(ColorIndexSubjectList);
struct ColorLineHead ColorIndexTagList = STAILQ_HEAD_INITIALIZER(ColorIndexTagList);
struct ColorLineHead ColorStatusList = STAILQ_HEAD_INITIALIZER(ColorStatusList);
/* local to this file */
static int ColorQuoteSize;
#ifdef HAVE_COLOR
#define COLOR_DEFAULT (-2)
/**
* struct ColorList - A set of colors
*/
struct ColorList
{
short fg;
short bg;
short index;
short count;
struct ColorList *next;
};
static struct ColorList *ColorList = NULL;
static int UserColors = 0;
static const struct Mapping Colors[] = {
{ "black", COLOR_BLACK },
{ "blue", COLOR_BLUE },
{ "cyan", COLOR_CYAN },
{ "green", COLOR_GREEN },
{ "magenta", COLOR_MAGENTA },
{ "red", COLOR_RED },
{ "white", COLOR_WHITE },
{ "yellow", COLOR_YELLOW },
#if defined(USE_SLANG_CURSES) || defined(HAVE_USE_DEFAULT_COLORS)
{ "default", COLOR_DEFAULT },
#endif
{ 0, 0 },
};
#endif /* HAVE_COLOR */
static const struct Mapping Fields[] = {
{ "attachment", MT_COLOR_ATTACHMENT },
{ "attach_headers", MT_COLOR_ATTACH_HEADERS },
{ "body", MT_COLOR_BODY },
{ "bold", MT_COLOR_BOLD },
{ "error", MT_COLOR_ERROR },
{ "hdrdefault", MT_COLOR_HDEFAULT },
{ "header", MT_COLOR_HEADER },
{ "index", MT_COLOR_INDEX },
{ "index_author", MT_COLOR_INDEX_AUTHOR },
{ "index_collapsed", MT_COLOR_INDEX_COLLAPSED },
{ "index_date", MT_COLOR_INDEX_DATE },
{ "index_flags", MT_COLOR_INDEX_FLAGS },
{ "index_label", MT_COLOR_INDEX_LABEL },
{ "index_number", MT_COLOR_INDEX_NUMBER },
{ "index_size", MT_COLOR_INDEX_SIZE },
{ "index_subject", MT_COLOR_INDEX_SUBJECT },
{ "index_tag", MT_COLOR_INDEX_TAG },
{ "index_tags", MT_COLOR_INDEX_TAGS },
{ "indicator", MT_COLOR_INDICATOR },
{ "markers", MT_COLOR_MARKERS },
{ "message", MT_COLOR_MESSAGE },
{ "normal", MT_COLOR_NORMAL },
{ "progress", MT_COLOR_PROGRESS },
{ "prompt", MT_COLOR_PROMPT },
{ "quoted", MT_COLOR_QUOTED },
{ "search", MT_COLOR_SEARCH },
#ifdef USE_SIDEBAR
{ "sidebar_divider", MT_COLOR_DIVIDER },
{ "sidebar_flagged", MT_COLOR_FLAGGED },
{ "sidebar_highlight", MT_COLOR_HIGHLIGHT },
{ "sidebar_indicator", MT_COLOR_SB_INDICATOR },
{ "sidebar_new", MT_COLOR_NEW },
{ "sidebar_ordinary", MT_COLOR_ORDINARY },
{ "sidebar_spoolfile", MT_COLOR_SB_SPOOLFILE },
#endif
{ "signature", MT_COLOR_SIGNATURE },
{ "status", MT_COLOR_STATUS },
{ "tilde", MT_COLOR_TILDE },
{ "tree", MT_COLOR_TREE },
{ "underline", MT_COLOR_UNDERLINE },
{ NULL, 0 },
};
static const struct Mapping ComposeFields[] = {
{ "header", MT_COLOR_COMPOSE_HEADER },
{ "security_encrypt", MT_COLOR_COMPOSE_SECURITY_ENCRYPT },
{ "security_sign", MT_COLOR_COMPOSE_SECURITY_SIGN },
{ "security_both", MT_COLOR_COMPOSE_SECURITY_BOTH },
{ "security_none", MT_COLOR_COMPOSE_SECURITY_NONE },
{ NULL, 0 }
};
#define COLOR_QUOTE_INIT 8
/**
* new_color_line - Create a new ColorLine
* @retval ptr Newly allocated ColorLine
*/
static struct ColorLine *new_color_line(void)
{
struct ColorLine *p = mutt_mem_calloc(1, sizeof(struct ColorLine));
p->fg = -1;
p->bg = -1;
return p;
}
/**
* free_color_line - Free a ColorLine
* @param tmp ColorLine to free
* @param free_colors If true, free its colours too
*/
static void free_color_line(struct ColorLine *tmp, bool free_colors)
{
if (!tmp)
return;
#ifdef HAVE_COLOR
if (free_colors && (tmp->fg != -1) && (tmp->bg != -1))
mutt_free_color(tmp->fg, tmp->bg);
#endif
/* we should really introduce a container
* type for regular expressions.
*/
regfree(&tmp->regex);
mutt_pattern_free(&tmp->color_pattern);
FREE(&tmp->pattern);
FREE(&tmp);
}
/**
* ci_start_color - Set up the default colours
*/
void ci_start_color(void)
{
memset(ColorDefs, A_NORMAL, sizeof(int) * MT_COLOR_MAX);
ColorQuote = mutt_mem_malloc(COLOR_QUOTE_INIT * sizeof(int));
memset(ColorQuote, A_NORMAL, sizeof(int) * COLOR_QUOTE_INIT);
ColorQuoteSize = COLOR_QUOTE_INIT;
ColorQuoteUsed = 0;
/* set some defaults */
ColorDefs[MT_COLOR_STATUS] = A_REVERSE;
ColorDefs[MT_COLOR_INDICATOR] = A_REVERSE;
ColorDefs[MT_COLOR_SEARCH] = A_REVERSE;
ColorDefs[MT_COLOR_MARKERS] = A_REVERSE;
#ifdef USE_SIDEBAR
ColorDefs[MT_COLOR_HIGHLIGHT] = A_UNDERLINE;
#endif
/* special meaning: toggle the relevant attribute */
ColorDefs[MT_COLOR_BOLD] = 0;
ColorDefs[MT_COLOR_UNDERLINE] = 0;
#ifdef HAVE_COLOR
start_color();
#endif
}
#ifdef HAVE_COLOR
#ifdef USE_SLANG_CURSES
/**
* get_color_name - Get a colour's name from its ID
* @param dest Buffer for the result
* @param destlen Length of buffer
* @param val Colour ID to look up
* @retval ptr Pointer to the results buffer
*/
static char *get_color_name(char *dest, size_t destlen, int val)
{
static const char *const missing[3] = { "brown", "lightgray", "default" };
switch (val)
{
case COLOR_YELLOW:
mutt_str_strfcpy(dest, missing[0], destlen);
return dest;
case COLOR_WHITE:
mutt_str_strfcpy(dest, missing[1], destlen);
return dest;
case COLOR_DEFAULT:
mutt_str_strfcpy(dest, missing[2], destlen);
return dest;
}
for (int i = 0; Colors[i].name; i++)
{
if (Colors[i].value == val)
{
mutt_str_strfcpy(dest, Colors[i].name, destlen);
return dest;
}
}
/* Sigh. If we got this far, the color is of the form 'colorN'
* Slang can handle this itself, so just return 'colorN'
*/
snprintf(dest, destlen, "color%d", val);
return dest;
}
#endif
/**
* mutt_alloc_color - Allocate a colour pair
* @param fg Foreground colour ID
* @param bg Background colour ID
* @retval num Combined colour pair
*/
int mutt_alloc_color(int fg, int bg)
{
struct ColorList *p = ColorList;
int i;
/* check to see if this color is already allocated to save space */
while (p)
{
if (p->fg == fg && p->bg == bg)
{
(p->count)++;
return COLOR_PAIR(p->index);
}
p = p->next;
}
/* check to see if there are colors left */
if (++UserColors > COLOR_PAIRS)
return A_NORMAL;
/* find the smallest available index (object) */
i = 1;
while (true)
{
p = ColorList;
while (p)
{
if (p->index == i)
break;
p = p->next;
}
if (!p)
break;
i++;
}
p = mutt_mem_malloc(sizeof(struct ColorList));
p->next = ColorList;
ColorList = p;
p->index = i;
p->count = 1;
p->bg = bg;
p->fg = fg;
#ifdef USE_SLANG_CURSES
if (fg == COLOR_DEFAULT || bg == COLOR_DEFAULT)
{
char fgc[SHORT_STRING], bgc[SHORT_STRING];
SLtt_set_color(i, NULL, get_color_name(fgc, sizeof(fgc), fg),
get_color_name(bgc, sizeof(bgc), bg));
}
else
#elif defined(HAVE_USE_DEFAULT_COLORS)
if (fg == COLOR_DEFAULT)
fg = -1;
if (bg == COLOR_DEFAULT)
bg = -1;
#endif
init_pair(i, fg, bg);
mutt_debug(3, "Color pairs used so far: %d\n", UserColors);
return COLOR_PAIR(p->index);
}
/**
* mutt_lookup_color - Get the colours from a colour pair
* @param[in] pair Colour pair
* @param[out] fg Foreground colour (OPTIONAL)
* @param[out] bg Background colour (OPTIONAL)
* @retval 0 Success
* @retval -1 Error
*/
static int mutt_lookup_color(short pair, short *fg, short *bg)
{
struct ColorList *p = ColorList;
while (p)
{
if (COLOR_PAIR(p->index) == pair)
{
if (fg)
*fg = p->fg;
if (bg)
*bg = p->bg;
return 0;
}
p = p->next;
}
return -1;
}
/**
* mutt_combine_color - Combine two colours
* @param fg_attr Colour pair of foreground to use
* @param bg_attr Colour pair of background to use
* @retval num Colour pair of combined colour
*/
int mutt_combine_color(int fg_attr, int bg_attr)
{
short fg = COLOR_DEFAULT;
short bg = COLOR_DEFAULT;
mutt_lookup_color(fg_attr, &fg, NULL);
mutt_lookup_color(bg_attr, NULL, &bg);
if ((fg == COLOR_DEFAULT) && (bg == COLOR_DEFAULT))
return A_NORMAL;
return mutt_alloc_color(fg, bg);
}
/**
* mutt_free_color - Free a colour
* @param fg Foreground colour ID
* @param bg Background colour ID
*
* If there are no more users, the resource will be freed.
*/
void mutt_free_color(int fg, int bg)
{
struct ColorList *q = NULL;
struct ColorList *p = ColorList;
while (p)
{
if (p->fg == fg && p->bg == bg)
{
(p->count)--;
if (p->count > 0)
return;
UserColors--;
mutt_debug(1, "Color pairs used so far: %d\n", UserColors);
if (p == ColorList)
{
ColorList = ColorList->next;
FREE(&p);
return;
}
q = ColorList;
while (q)
{
if (q->next == p)
{
q->next = p->next;
FREE(&p);
return;
}
q = q->next;
}
/* can't get here */
}
p = p->next;
}
}
#endif /* HAVE_COLOR */
#ifdef HAVE_COLOR
/**
* parse_color_name - Parse a colour name
* @param[in] s String to parse
* @param[out] col Number for 'colorNNN' colours
* @param[out] attr Attribute flags, e.g. A_BOLD
* @param[in] is_fg true if this is a foreground colour
* @param[out] err Buffer for error messages
* @retval 0 Success
* @retval -1 Error
*
* Parse a colour name, such as "red", "brightgreen", "color123".
*/
static int parse_color_name(const char *s, int *col, int *attr, bool is_fg, struct Buffer *err)
{
char *eptr = NULL;
int is_alert = 0, is_bright = 0;
if (mutt_str_strncasecmp(s, "bright", 6) == 0)
{
is_bright = 1;
s += 6;
}
else if (mutt_str_strncasecmp(s, "alert", 5) == 0)
{
is_alert = 1;
is_bright = 1;
s += 5;
}
/* allow aliases for xterm color resources */
if (mutt_str_strncasecmp(s, "color", 5) == 0)
{
s += 5;
*col = strtol(s, &eptr, 10);
if (!*s || *eptr || *col < 0 || (*col >= COLORS && !OptNoCurses && has_colors()))
{
mutt_buffer_printf(err, _("%s: color not supported by term"), s);
return -1;
}
}
else if ((*col = mutt_map_get_value(s, Colors)) == -1)
{
mutt_buffer_printf(err, _("%s: no such color"), s);
return -1;
}
if (is_bright)
{
if (is_alert)
{
*attr |= A_BOLD;
*attr |= A_BLINK;
}
else if (is_fg)
{
*attr |= A_BOLD;
}
else if (COLORS < 16)
{
/* A_BLINK turns the background color brite on some terms */
*attr |= A_BLINK;
}
else
{
/* Advance the color by 8 to get the bright version */
*col += 8;
}
}
return 0;
}
#endif
/**
* do_uncolor - Parse the "uncolor" or "unmono" command
* @param[in] buf Buffer for temporary storage
* @param[in] s Buffer containing the uncolor command
* @param[in] cl List of existing colours
* @param[in,out] do_cache Set to true if colours were freed
* @param[in] parse_uncolor If true, 'uncolor', else 'unmono'
*/
static void do_uncolor(struct Buffer *buf, struct Buffer *s,
struct ColorLineHead *cl, bool *do_cache, bool parse_uncolor)
{
struct ColorLine *np = NULL, *tmp = NULL;
do
{
mutt_extract_token(buf, s, 0);
if (mutt_str_strcmp("*", buf->data) == 0)
{
np = STAILQ_FIRST(cl);
while (np)
{
tmp = STAILQ_NEXT(np, entries);
if (!*do_cache)
{
*do_cache = true;
}
free_color_line(np, parse_uncolor);
np = tmp;
}
STAILQ_INIT(cl);
return;
}
else
{
tmp = NULL;
STAILQ_FOREACH(np, cl, entries)
{
if (mutt_str_strcmp(buf->data, np->pattern) == 0)
{
if (!*do_cache)
{
*do_cache = true;
}
mutt_debug(1, "Freeing pattern \"%s\" from ColorList\n", buf->data);
if (tmp)
STAILQ_REMOVE_AFTER(cl, tmp, entries);
else
STAILQ_REMOVE_HEAD(cl, entries);
free_color_line(np, parse_uncolor);
break;
}
tmp = np;
}
}
} while (MoreArgs(s));
}
/**
* parse_uncolor - Parse an 'uncolor' command
* @param buf Temporary Buffer space
* @param s Buffer containing string to be parsed
* @param data Flags associated with the command
* @param err Buffer for error messages
* @param parse_uncolor If true, 'uncolor', else 'unmono'
* @retval 0 Success
* @retval -1 Error
*
* usage:
* * uncolor index pattern [pattern...]
* * unmono index pattern [pattern...]
*/
static int parse_uncolor(struct Buffer *buf, struct Buffer *s, unsigned long data,
struct Buffer *err, bool parse_uncolor)
{
int object = 0;
bool do_cache = false;
mutt_extract_token(buf, s, 0);
object = mutt_map_get_value(buf->data, Fields);
if (object == -1)
{
mutt_buffer_printf(err, _("%s: no such object"), buf->data);
return -1;
}
if (object > MT_COLOR_INDEX_SUBJECT)
{ /* uncolor index column */
ColorDefs[object] = 0;
mutt_menu_set_redraw_full(MENU_MAIN);
return 0;
}
if ((mutt_str_strncmp(buf->data, "body", 4) != 0) &&
(mutt_str_strncmp(buf->data, "header", 6) != 0) &&
(mutt_str_strncmp(buf->data, "index", 5) != 0))
{
mutt_buffer_printf(err, _("%s: command valid only for index, body, header objects"),
parse_uncolor ? "uncolor" : "unmono");
return -1;
}
if (!MoreArgs(s))
{
mutt_buffer_printf(err, _("%s: too few arguments"), parse_uncolor ? "uncolor" : "unmono");
return -1;
}
if (
#ifdef HAVE_COLOR
/* we're running without curses */
OptNoCurses || /* we're parsing an uncolor command, and have no colors */
(parse_uncolor && !has_colors())
/* we're parsing an unmono command, and have colors */
|| (!parse_uncolor && has_colors())
#else
/* We don't even have colors compiled in */
parse_uncolor
#endif
)
{
/* just eat the command, but don't do anything real about it */
do
mutt_extract_token(buf, s, 0);
while (MoreArgs(s));
return 0;
}
if (object == MT_COLOR_BODY)
do_uncolor(buf, s, &ColorBodyList, &do_cache, parse_uncolor);
else if (object == MT_COLOR_HEADER)
do_uncolor(buf, s, &ColorHdrList, &do_cache, parse_uncolor);
else if (object == MT_COLOR_ATTACH_HEADERS)
do_uncolor(buf, s, &ColorAttachList, &do_cache, parse_uncolor);
else if (object == MT_COLOR_INDEX)
do_uncolor(buf, s, &ColorIndexList, &do_cache, parse_uncolor);
else if (object == MT_COLOR_INDEX_AUTHOR)
do_uncolor(buf, s, &ColorIndexAuthorList, &do_cache, parse_uncolor);
else if (object == MT_COLOR_INDEX_FLAGS)
do_uncolor(buf, s, &ColorIndexFlagsList, &do_cache, parse_uncolor);
else if (object == MT_COLOR_INDEX_SUBJECT)
do_uncolor(buf, s, &ColorIndexSubjectList, &do_cache, parse_uncolor);
else if (object == MT_COLOR_INDEX_TAG)
do_uncolor(buf, s, &ColorIndexTagList, &do_cache, parse_uncolor);
bool is_index = ((object == MT_COLOR_INDEX) || (object == MT_COLOR_INDEX_AUTHOR) ||
(object == MT_COLOR_INDEX_FLAGS) || (object == MT_COLOR_INDEX_SUBJECT) ||
(object == MT_COLOR_INDEX_TAG));
if (is_index && do_cache && !OptNoCurses)
{
mutt_menu_set_redraw_full(MENU_MAIN);
/* force re-caching of index colors */
for (int i = 0; Context && i < Context->mailbox->msg_count; i++)
Context->mailbox->hdrs[i]->pair = 0;
}
return 0;
}
#ifdef HAVE_COLOR
/**
* mutt_parse_uncolor - Parse the 'uncolor' command
* @param buf Temporary Buffer space
* @param s Buffer containing string to be parsed
* @param data Flags associated with the command
* @param err Buffer for error messages
* @retval 0 Success
* @retval -1 Error
*/
int mutt_parse_uncolor(struct Buffer *buf, struct Buffer *s, unsigned long data,
struct Buffer *err)
{
return parse_uncolor(buf, s, data, err, true);
}
#endif
/**
* mutt_parse_unmono - Parse the 'unmono' command
* @param buf Temporary Buffer space
* @param s Buffer containing string to be parsed
* @param data Flags associated with the command
* @param err Buffer for error messages
* @retval 0 Success
* @retval -1 Error
*/
int mutt_parse_unmono(struct Buffer *buf, struct Buffer *s, unsigned long data,
struct Buffer *err)
{
return parse_uncolor(buf, s, data, err, false);
}
/**
* add_pattern - Associate a colour to a pattern
* @param top List of existing colours
* @param s String to match
* @param sensitive true if the pattern case-sensitive
* @param fg Foreground colour ID
* @param bg Background colour ID
* @param attr Attribute flags, e.g. A_BOLD
* @param err Buffer for error messages
* @param is_index true of this is for the index
* @param match Number of regex subexpression to match (0 for entire pattern)
* @retval 0 Success
* @retval -1 Error
*/
static int add_pattern(struct ColorLineHead *top, const char *s, bool sensitive, int fg,
int bg, int attr, struct Buffer *err, bool is_index, int match)
{
/* is_index used to store compiled pattern
* only for `index' color object
* when called from mutt_parse_color() */
struct ColorLine *tmp = NULL;
STAILQ_FOREACH(tmp, top, entries)
{
if (sensitive)
{
if (mutt_str_strcmp(s, tmp->pattern) == 0)
break;
}
else
{
if (mutt_str_strcasecmp(s, tmp->pattern) == 0)
break;
}
}
if (tmp)
{
#ifdef HAVE_COLOR
if (fg != -1 && bg != -1)
{
if (tmp->fg != fg || tmp->bg != bg)
{
mutt_free_color(tmp->fg, tmp->bg);
tmp->fg = fg;
tmp->bg = bg;
attr |= mutt_alloc_color(fg, bg);
}
else
attr |= (tmp->pair & ~A_BOLD);
}
#endif /* HAVE_COLOR */
tmp->pair = attr;
}
else
{
tmp = new_color_line();
if (is_index)
{
char buf[LONG_STRING];
mutt_str_strfcpy(buf, s, sizeof(buf));
mutt_check_simple(buf, sizeof(buf), NONULL(SimpleSearch));
tmp->color_pattern = mutt_pattern_comp(buf, MUTT_FULL_MSG, err);
if (!tmp->color_pattern)
{
free_color_line(tmp, true);
return -1;
}
}
else
{
int flags = 0;
if (sensitive)
flags = mutt_mb_is_lower(s) ? REG_ICASE : 0;
else
flags = REG_ICASE;
const int r = REGCOMP(&tmp->regex, s, flags);
if (r != 0)
{
regerror(r, &tmp->regex, err->data, err->dsize);
free_color_line(tmp, true);
return -1;
}
}
tmp->pattern = mutt_str_strdup(s);
tmp->match = match;
#ifdef HAVE_COLOR
if (fg != -1 && bg != -1)
{
tmp->fg = fg;
tmp->bg = bg;
attr |= mutt_alloc_color(fg, bg);
}
#endif
tmp->pair = attr;
STAILQ_INSERT_HEAD(top, tmp, entries);
}
/* force re-caching of index colors */
if (is_index)
{
for (int i = 0; Context && i < Context->mailbox->msg_count; i++)
Context->mailbox->hdrs[i]->pair = 0;
}
return 0;
}
/**
* parse_object - Parse a colour config line
* @param[in] buf Temporary Buffer space
* @param[in] s Buffer containing string to be parsed
* @param[out] o Index into the fields map
* @param[out] ql Quote level
* @param[out] err Buffer for error messages
* @retval 0 Success
* @retval -1 Error
*/
static int parse_object(struct Buffer *buf, struct Buffer *s, int *o, int *ql,
struct Buffer *err)
{
if (!MoreArgs(s))
{
mutt_buffer_printf(err, _("%s: too few arguments"), "color");
return -1;
}
mutt_extract_token(buf, s, 0);
if (mutt_str_strncmp(buf->data, "quoted", 6) == 0)
{
if (buf->data[6])
{
char *eptr = NULL;
*ql = strtol(buf->data + 6, &eptr, 10);
if (*eptr || *ql < 0)
{
mutt_buffer_printf(err, _("%s: no such object"), buf->data);
return -1;
}
}
else
*ql = 0;
*o = MT_COLOR_QUOTED;
}
else if (mutt_str_strcasecmp(buf->data, "compose") == 0)
{
if (!MoreArgs(s))
{
mutt_buffer_printf(err, _("%s: too few arguments"), "color");
return -1;
}
mutt_extract_token(buf, s, 0);
*o = mutt_map_get_value(buf->data, ComposeFields);
if (*o == -1)
{
mutt_buffer_printf(err, _("%s: no such object"), buf->data);
return -1;
}
}
else if ((*o = mutt_map_get_value(buf->data, Fields)) == -1)
{
mutt_buffer_printf(err, _("%s: no such object"), buf->data);
return -1;
}
return 0;
}
/**
* typedef parser_callback_t - Prototype for a function to parse color config
* @param[in] buf Temporary Buffer space
* @param[in] s Buffer containing string to be parsed
* @param[out] fg Foreground colour (set to -1)
* @param[out] bg Background colour (set to -1)
* @param[out] attr Attribute flags
* @param[out] err Buffer for error messages
* @retval 0 Success
* @retval -1 Error
*/
typedef int (*parser_callback_t)(struct Buffer *buf, struct Buffer *s, int *fg,
int *bg, int *attr, struct Buffer *err);
#ifdef HAVE_COLOR
/**
* parse_color_pair - Parse a pair of colours - Implements ::parser_callback_t
*/
static int parse_color_pair(struct Buffer *buf, struct Buffer *s, int *fg,
int *bg, int *attr, struct Buffer *err)
{
if (!MoreArgs(s))
{
mutt_buffer_printf(err, _("%s: too few arguments"), "color");
return -1;
}
mutt_extract_token(buf, s, 0);
if (parse_color_name(buf->data, fg, attr, true, err) != 0)
return -1;
if (!MoreArgs(s))
{
mutt_buffer_printf(err, _("%s: too few arguments"), "color");
return -1;
}
mutt_extract_token(buf, s, 0);
if (parse_color_name(buf->data, bg, attr, false, err) != 0)
return -1;
return 0;
}
#endif
/**
* parse_attr_spec - Parse an attribute description - Implements ::parser_callback_t
*/
static int parse_attr_spec(struct Buffer *buf, struct Buffer *s, int *fg,
int *bg, int *attr, struct Buffer *err)
{
if (fg)
*fg = -1;
if (bg)
*bg = -1;
if (!MoreArgs(s))
{
mutt_buffer_printf(err, _("%s: too few arguments"), "mono");
return -1;
}
mutt_extract_token(buf, s, 0);
if (mutt_str_strcasecmp("bold", buf->data) == 0)
*attr |= A_BOLD;
else if (mutt_str_strcasecmp("underline", buf->data) == 0)
*attr |= A_UNDERLINE;
else if (mutt_str_strcasecmp("none", buf->data) == 0)
*attr = A_NORMAL;
else if (mutt_str_strcasecmp("reverse", buf->data) == 0)
*attr |= A_REVERSE;
else if (mutt_str_strcasecmp("standout", buf->data) == 0)
*attr |= A_STANDOUT;
else if (mutt_str_strcasecmp("normal", buf->data) == 0)
*attr = A_NORMAL; /* needs use = instead of |= to clear other bits */
else
{
mutt_buffer_printf(err, _("%s: no such attribute"), buf->data);
return -1;
}
return 0;
}
/**
* fgbgattr_to_color - Convert a foreground, background, attribute triplet into a colour
* @param fg Foreground colour ID
* @param bg Background colour ID
* @param attr Attribute flags, e.g. A_BOLD
* @retval num Combined colour pair
*/
static int fgbgattr_to_color(int fg, int bg, int attr)
{
#ifdef HAVE_COLOR
if (fg != -1 && bg != -1)
return attr | mutt_alloc_color(fg, bg);
else
#endif
return attr;
}
/**
* parse_color - Parse a "color" command
* @param buf Temporary Buffer space
* @param s Buffer containing string to be parsed
* @param err Buffer for error messages
* @param callback Function to handle command - Implements ::parser_callback_t
* @param dry_run If true, test the command, but don't apply it
* @param color If true "color", else "mono"
* @retval 0 Success
* @retval -1 Error
*
* usage: color OBJECT FG BG [ REGEX ]
* mono OBJECT ATTR [ REGEX ]
*/
static int parse_color(struct Buffer *buf, struct Buffer *s, struct Buffer *err,
parser_callback_t callback, bool dry_run, bool color)
{
int object = 0, attr = 0, fg = 0, bg = 0, q_level = 0;
int r = 0, match = 0;
if (parse_object(buf, s, &object, &q_level, err) == -1)
return -1;