src/c2html.c@f86f0b054464
src/c2html.c
Tue, 23 Aug 2016 17:31:15 +0200
- author
- Mike Becker <universe@uap-core.de>
- date
- Tue, 23 Aug 2016 17:31:15 +0200
- changeset 49
- f86f0b054464
- parent 48
- b2724c711203
- child 50
- 17408c3607ce
- permissions
- -rw-r--r--
cleans up includes
1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2016 Mike Becker. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 *
28 */
29 #include "c2html.h"
31 #include "ucx/list.h"
33 void printhelp() {
34 printf("Formats source code using HTML.\n\nUsage:\n"
35 " c2html [Options] FILE\n\n"
36 " Options:\n"
37 " -h Prints this help message\n"
38 " -j Highlight Java instead of C source code\n"
39 " -o <output> Output file (stdout, if not specified)\n"
40 " -H <header> Prepend header file\n"
41 " -F <footer> Append footer file\n"
42 " -p Disable highlighting (plain text)\n"
43 " -l Disable line numbers\n"
44 " -V, -v Prints version and exits\n"
45 "\n");
46 }
48 static void plain_highlighter(char *src, UcxBuffer *dest, int* x) {
49 while (*src && *src != '\n') {
50 put_htmlescaped(dest, *src);
51 src++;
52 }
53 ucx_buffer_putc(dest, '\n');
54 }
56 int formatlines(highlighter_func highlighter,
57 UcxList *in, write_func out, void *stream, int showlineno) {
59 /* compute width of line numbering */
60 int lnw;
61 if (showlineno) {
62 size_t lines = ucx_list_size(in);
63 lnw = 1;
64 int p = 1;
65 while ((p*=10) < lines) lnw++;
66 }
68 /* allocate line buffer */
69 UcxBuffer *line = ucx_buffer_new(NULL, 1024, UCX_BUFFER_AUTOEXTEND);
70 if(!line) {
71 return 1;
72 }
74 /* start monospace formatting */
75 out("<pre>\n", 1, 6, stream);
77 /* process lines */
78 size_t lineno = 0;
79 int multiline_comment = 0;
81 UCX_FOREACH(sourceline, in) {
82 /* increase line number and clean line buffer */
83 lineno++;
84 ucx_buffer_clear(line);
86 /* write line number */
87 if (showlineno) {
88 ucx_bprintf(line, "<span class=\"c2html-lineno\">"
89 "<a name=\"l%d\" href=\"#l%d\">%*d </a></span> ",
90 lineno, lineno, lnw, lineno);
91 }
93 /* process code line */
94 highlighter(sourceline->data, line, &multiline_comment);
96 /* write code line and reset buffer */
97 out(line->space, 1, line->size, stream);
98 }
100 /* end monospace formatting */
101 out("</pre>\n", 1, 7, stream);
103 /* cleanup and return */
104 ucx_buffer_free(line);
105 return 0;
106 }
108 #define FILEBUF_SIZE 4096
110 enum source_type {
111 SOURCE_C,
112 SOURCE_JAVA,
113 SOURCE_PLAIN
114 };
116 int main(int argc, char** argv) {
118 /* Default settings */
119 Settings settings;
120 memset(&settings, 0, sizeof(settings));
121 settings.showlinenumbers = 1;
122 enum source_type sourcetype = SOURCE_C;
124 /* Parse command line */
125 char optc;
126 while ((optc = getopt(argc, argv, "hljo:pH:F:vV")) != -1) {
127 switch (optc) {
128 case 'o':
129 if (!(optarg[0] == '-' && optarg[1] == 0)) {
130 settings.outfilename = optarg;
131 }
132 break;
133 case 'F':
134 settings.footerfile = optarg;
135 break;
136 case 'H':
137 settings.headerfile = optarg;
138 break;
139 case 'j':
140 sourcetype = SOURCE_JAVA;
141 break;
142 case 'p':
143 sourcetype = SOURCE_PLAIN;
144 break;
145 case 'l':
146 settings.showlinenumbers = 0;
147 break;
148 case 'h':
149 printhelp();
150 return EXIT_SUCCESS;
151 case 'v':
152 case 'V':
153 #ifdef VERSION_DEVELOP
154 printf("%d.%d (unstable)\n", VERSION_MAJOR, VERSION_MINOR);
155 #else
156 printf("%d.%d\n", VERSION_MAJOR, VERSION_MINOR);
157 #endif
158 return EXIT_SUCCESS;
159 default:
160 return EXIT_FAILURE;
161 }
162 }
164 if (optind != argc-1) {
165 printhelp();
166 return EXIT_FAILURE;
167 } else {
168 /* Choose highlighter */
169 highlighter_func hltr = NULL;
170 switch (sourcetype) {
171 case SOURCE_C:
172 hltr = c_highlighter;
173 break;
174 case SOURCE_JAVA:
175 hltr = java_highlighter;
176 break;
177 case SOURCE_PLAIN:
178 hltr = plain_highlighter;
179 break;
180 default: /* should be unreachable */
181 fprintf(stderr, "error in enum source_type\n");
182 return EXIT_FAILURE;
183 }
185 /* Open output file */
186 settings.infilename = argv[optind];
187 FILE *fout;
188 if (settings.outfilename) {
189 fout = fopen(settings.outfilename, "w");
190 if (!fout) {
191 perror("Error opening output file");
192 return EXIT_FAILURE;
193 }
194 } else {
195 fout = stdout;
196 }
198 /* Allocate file buffer */
199 char *filebuf = malloc(FILEBUF_SIZE);
200 if (!filebuf) {
201 perror("Error allocating file buffer");
202 return EXIT_FAILURE;
203 }
205 /* Prepend header file */
206 {
207 FILE *headerfile = fopen(settings.headerfile, "r");
208 if (!headerfile) {
209 perror("Error opening header file");
210 if (fout != stdout) {
211 fclose(fout);
212 }
213 return EXIT_FAILURE;
214 }
215 ucx_stream_copy(headerfile, fout,
216 (read_func) fread, (write_func) fwrite,
217 filebuf, FILEBUF_SIZE, (size_t)-1);
218 fclose(headerfile);
219 }
221 /* Process input file */
222 FILE *inputfile = fopen(settings.infilename, "r");
223 if (inputfile) {
224 UcxBuffer *content = ucx_buffer_new(NULL,
225 FILEBUF_SIZE*2, UCX_BUFFER_AUTOEXTEND);
226 {
227 ucx_stream_copy(inputfile, content, (read_func) fread,
228 (write_func) ucx_buffer_write,
229 filebuf, FILEBUF_SIZE, (size_t)-1);
230 }
231 fclose(inputfile);
233 UcxList *inputlines = ucx_list_append(NULL, content->space);
234 for (size_t i = 1 ; i < content->size ; i++) {
235 if (content->space[i] == '\r') {
236 content->space[i] = '\n'; i++;
237 }
238 if (content->space[i] == '\n' && i+1 < content->size) {
239 ucx_list_append(inputlines, content->space+i+1);
240 }
241 }
243 formatlines(hltr, inputlines,
244 (write_func) fwrite, fout, settings.showlinenumbers);
246 ucx_buffer_free(content);
247 } else {
248 perror("Error opening input file");
249 if (fout != stdout) {
250 fclose(fout);
251 }
252 return EXIT_FAILURE;
253 }
255 /* Append footer file */
256 {
257 FILE *footerfile = fopen(settings.footerfile, "r");
258 if (!footerfile) {
259 perror("Error opening footer file");
260 if (fout != stdout) {
261 fclose(fout);
262 }
263 return EXIT_FAILURE;
264 }
265 ucx_stream_copy(footerfile, fout,
266 (read_func) fread, (write_func) fwrite,
267 filebuf, FILEBUF_SIZE, (size_t)-1);
268 fclose(footerfile);
269 }
272 free(filebuf);
274 return EXIT_SUCCESS;
275 }
276 }
