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
|
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include "config.h"
#include "memory.h"
#include "cmark.h"
#include "node.h"
#if defined(__OpenBSD__)
# include <sys/param.h>
# if OpenBSD >= 201605
# define USE_PLEDGE
# include <unistd.h>
# endif
#endif
#if defined(_WIN32) && !defined(__CYGWIN__)
#include <io.h>
#include <fcntl.h>
#endif
typedef enum {
FORMAT_NONE,
FORMAT_HTML,
FORMAT_XML,
FORMAT_MAN,
FORMAT_COMMONMARK,
FORMAT_LATEX
} writer_format;
void print_usage() {
printf("Usage: cmark [FILE*]\n");
printf("Options:\n");
printf(" --to, -t FORMAT Specify output format (html, xml, man, "
"commonmark, latex)\n");
printf(" --width WIDTH Specify wrap width (default 0 = nowrap)\n");
printf(" --sourcepos Include source position attribute\n");
printf(" --hardbreaks Treat newlines as hard line breaks\n");
printf(" --nobreaks Render soft line breaks as spaces\n");
printf(" --safe Suppress raw HTML and dangerous URLs\n");
printf(" --smart Use smart punctuation\n");
printf(" --validate-utf8 Replace UTF-8 invalid sequences with U+FFFD\n");
printf(" --help, -h Print usage information\n");
printf(" --version Print version\n");
}
static void print_document(cmark_node *document, writer_format writer,
int options, int width) {
char *result;
switch (writer) {
case FORMAT_HTML:
result = cmark_render_html(document, options);
break;
case FORMAT_XML:
result = cmark_render_xml(document, options);
break;
case FORMAT_MAN:
result = cmark_render_man(document, options, width);
break;
case FORMAT_COMMONMARK:
result = cmark_render_commonmark(document, options, width);
break;
case FORMAT_LATEX:
result = cmark_render_latex(document, options, width);
break;
default:
fprintf(stderr, "Unknown format %d\n", writer);
exit(1);
}
printf("%s", result);
cmark_node_mem(document)->free(result);
}
int main(int argc, char *argv[]) {
int i, numfps = 0;
int *files;
char buffer[4096];
cmark_parser *parser;
size_t bytes;
cmark_node *document;
int width = 0;
char *unparsed;
writer_format writer = FORMAT_HTML;
int options = CMARK_OPT_DEFAULT;
#ifdef USE_PLEDGE
if (pledge("stdio rpath", NULL) != 0) {
perror("pledge");
return 1;
}
#endif
#if defined(_WIN32) && !defined(__CYGWIN__)
_setmode(_fileno(stdin), _O_BINARY);
_setmode(_fileno(stdout), _O_BINARY);
#endif
files = (int *)calloc(argc, sizeof(*files));
for (i = 1; i < argc; i++) {
if (strcmp(argv[i], "--version") == 0) {
printf("cmark %s", CMARK_VERSION_STRING);
printf(" - CommonMark converter\n(C) 2014-2016 John MacFarlane\n");
exit(0);
} else if (strcmp(argv[i], "--sourcepos") == 0) {
options |= CMARK_OPT_SOURCEPOS;
} else if (strcmp(argv[i], "--hardbreaks") == 0) {
options |= CMARK_OPT_HARDBREAKS;
} else if (strcmp(argv[i], "--nobreaks") == 0) {
options |= CMARK_OPT_NOBREAKS;
} else if (strcmp(argv[i], "--smart") == 0) {
options |= CMARK_OPT_SMART;
} else if (strcmp(argv[i], "--safe") == 0) {
options |= CMARK_OPT_SAFE;
} else if (strcmp(argv[i], "--validate-utf8") == 0) {
options |= CMARK_OPT_VALIDATE_UTF8;
} else if ((strcmp(argv[i], "--help") == 0) ||
(strcmp(argv[i], "-h") == 0)) {
print_usage();
exit(0);
} else if (strcmp(argv[i], "--width") == 0) {
i += 1;
if (i < argc) {
width = (int)strtol(argv[i], &unparsed, 10);
if (unparsed && strlen(unparsed) > 0) {
fprintf(stderr, "failed parsing width '%s' at '%s'\n", argv[i],
unparsed);
exit(1);
}
} else {
fprintf(stderr, "--width requires an argument\n");
exit(1);
}
} else if ((strcmp(argv[i], "-t") == 0) || (strcmp(argv[i], "--to") == 0)) {
i += 1;
if (i < argc) {
if (strcmp(argv[i], "man") == 0) {
writer = FORMAT_MAN;
} else if (strcmp(argv[i], "html") == 0) {
writer = FORMAT_HTML;
} else if (strcmp(argv[i], "xml") == 0) {
writer = FORMAT_XML;
} else if (strcmp(argv[i], "commonmark") == 0) {
writer = FORMAT_COMMONMARK;
} else if (strcmp(argv[i], "latex") == 0) {
writer = FORMAT_LATEX;
} else {
fprintf(stderr, "Unknown format %s\n", argv[i]);
exit(1);
}
} else {
fprintf(stderr, "No argument provided for %s\n", argv[i - 1]);
exit(1);
}
} else if (*argv[i] == '-') {
print_usage();
exit(1);
} else { // treat as file argument
files[numfps++] = i;
}
}
parser = cmark_parser_new(options);
for (i = 0; i < numfps; i++) {
FILE *fp = fopen(argv[files[i]], "rb");
if (fp == NULL) {
fprintf(stderr, "Error opening file %s: %s\n", argv[files[i]],
strerror(errno));
exit(1);
}
while ((bytes = fread(buffer, 1, sizeof(buffer), fp)) > 0) {
cmark_parser_feed(parser, buffer, bytes);
if (bytes < sizeof(buffer)) {
break;
}
}
fclose(fp);
}
if (numfps == 0) {
while ((bytes = fread(buffer, 1, sizeof(buffer), stdin)) > 0) {
cmark_parser_feed(parser, buffer, bytes);
if (bytes < sizeof(buffer)) {
break;
}
}
}
#ifdef USE_PLEDGE
if (pledge("stdio", NULL) != 0) {
perror("pledge");
return 1;
}
#endif
document = cmark_parser_finish(parser);
cmark_parser_free(parser);
print_document(document, writer, options, width);
cmark_node_free(document);
free(files);
return 0;
}
|
