1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
|
#if !defined(lint) && !defined(DOS)
static char rcsid[] = "$Id: color.c 769 2007-10-24 00:15:40Z hubert@u.washington.edu $";
#endif
/*
* ========================================================================
* Copyright 2013-2020 Eduardo Chappa
* Copyright 2006-2007 University of Washington
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* ========================================================================
*/
#include "../pith/headers.h"
#include "../pith/color.h"
#include "../pith/state.h"
#include "../pith/conf.h"
#include "../pith/filter.h"
char *
color_embed(char *fg, char *bg)
{
static char buf[(2 * RGBLEN) + 5], *p;
p = buf;
if(fg){
if(sizeof(buf)-(p-buf) > 1){
*p++ = TAG_EMBED;
*p++ = TAG_FGCOLOR;
}
sstrncpy(&p, color_to_asciirgb(fg), sizeof(buf)-(p-buf));
}
if(bg){
if(sizeof(buf)-(p-buf) > 1){
*p++ = TAG_EMBED;
*p++ = TAG_BGCOLOR;
}
sstrncpy(&p, color_to_asciirgb(bg), sizeof(buf)-(p-buf));
}
buf[sizeof(buf)-1] = '\0';
return(buf);
}
int
colorcmp(char *color1, char *color2)
{
if(color1 && color2)
return(strcmp(color_to_asciirgb(color1), color_to_asciirgb(color2)));
/* if both NULL they're the same? */
return(!(color1 || color2));
}
struct quote_colors {
COLOR_PAIR *color;
struct quote_colors *next;
};
int
color_a_quote(long int linenum, char *line, LT_INS_S **ins, void *is_flowed_msg)
{
int countem = 0;
struct variable *vars = ps_global->vars;
char *p;
struct quote_colors *colors = NULL, *cp, *next;
COLOR_PAIR *col = NULL;
int is_flowed = is_flowed_msg ? *((int *)is_flowed_msg) : 0;
p = line;
if(!is_flowed)
while(isspace((unsigned char)*p))
p++;
if(p[0] == '>'){
struct quote_colors *c;
/*
* We have a fixed number of quote level colors (3). If there are
* more levels of quoting than are defined, they repeat.
*/
if(VAR_QUOTE1_FORE_COLOR && VAR_QUOTE1_BACK_COLOR &&
(col = new_color_pair(VAR_QUOTE1_FORE_COLOR,
VAR_QUOTE1_BACK_COLOR)) &&
pico_is_good_colorpair(col)){
c = (struct quote_colors *)fs_get(sizeof(*c));
memset(c, 0, sizeof(*c));
c->color = col;
col = NULL;
colors = c;
cp = c;
countem++;
if(VAR_QUOTE2_FORE_COLOR && VAR_QUOTE2_BACK_COLOR &&
(col = new_color_pair(VAR_QUOTE2_FORE_COLOR,
VAR_QUOTE2_BACK_COLOR)) &&
pico_is_good_colorpair(col)){
c = (struct quote_colors *)fs_get(sizeof(*c));
memset(c, 0, sizeof(*c));
c->color = col;
col = NULL;
cp->next = c;
cp = c;
countem++;
if(VAR_QUOTE3_FORE_COLOR && VAR_QUOTE3_BACK_COLOR &&
(col = new_color_pair(VAR_QUOTE3_FORE_COLOR,
VAR_QUOTE3_BACK_COLOR)) &&
pico_is_good_colorpair(col)){
c = (struct quote_colors *)fs_get(sizeof(*cp));
memset(c, 0, sizeof(*c));
c->color = col;
col = NULL;
cp->next = c;
cp = c;
countem++;
}
}
}
}
if(col)
free_color_pair(&col);
cp = NULL;
while(*p == '>'){
cp = (cp && cp->next) ? cp->next : colors;
if(countem > 0)
ins = gf_line_test_new_ins(ins, p,
color_embed(cp->color->fg, cp->color->bg),
(2 * RGBLEN) + 4);
countem = (countem == 1) ? 0 : countem;
p++;
if(!is_flowed)
for(; isspace((unsigned char)*p); p++)
;
}
if(colors){
char fg[RGBLEN + 1], bg[RGBLEN + 1], rgbbuf[RGBLEN + 1];
strncpy(fg, color_to_asciirgb(VAR_NORM_FORE_COLOR), sizeof(fg));
strncpy(bg, color_to_asciirgb(VAR_NORM_BACK_COLOR), sizeof(bg));
fg[sizeof(fg)-1] = '\0';
bg[sizeof(bg)-1] = '\0';
/*
* Loop watching colors, and override with most recent
* quote color whenever the normal foreground and background
* colors are in force.
*/
while(*p)
if(*p++ == TAG_EMBED){
switch(*p++){
case TAG_HANDLE :
p += *p + 1; /* skip handle key */
break;
case TAG_FGCOLOR :
snprintf(rgbbuf, sizeof(rgbbuf), "%s", p);
p += RGBLEN; /* advance past color value */
if(!colorcmp(rgbbuf, VAR_NORM_FORE_COLOR)
&& !colorcmp(bg, VAR_NORM_BACK_COLOR))
ins = gf_line_test_new_ins(ins, p,
color_embed(cp->color->fg,NULL),
RGBLEN + 2);
break;
case TAG_BGCOLOR :
snprintf(rgbbuf, sizeof(rgbbuf), "%s", p);
p += RGBLEN; /* advance past color value */
if(!colorcmp(rgbbuf, VAR_NORM_BACK_COLOR)
&& !colorcmp(fg, VAR_NORM_FORE_COLOR))
ins = gf_line_test_new_ins(ins, p,
color_embed(NULL,cp->color->bg),
RGBLEN + 2);
break;
default :
break;
}
}
ins = gf_line_test_new_ins(ins, line + strlen(line),
color_embed(VAR_NORM_FORE_COLOR,
VAR_NORM_BACK_COLOR),
(2 * RGBLEN) + 4);
for(cp = colors; cp && cp->color; cp = next){
free_color_pair(&cp->color);
next = cp->next;
fs_give((void **)&cp);
}
}
return(0);
}
void
free_spec_colors(SPEC_COLOR_S **colors)
{
if(colors && *colors){
free_spec_colors(&(*colors)->next);
if((*colors)->spec)
fs_give((void **)&(*colors)->spec);
if((*colors)->fg)
fs_give((void **)&(*colors)->fg);
if((*colors)->bg)
fs_give((void **)&(*colors)->bg);
if((*colors)->val)
free_pattern(&(*colors)->val);
fs_give((void **)colors);
}
}
|
