Tue, 23 Aug 2016 16:34:02 +0200
words (token) are now stored as sstr_t
23 | 1 | /* |
2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
3 | * | |
35 | 4 | * Copyright 2016 Mike Becker. All rights reserved. |
23 | 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 | */ | |
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29 | #include "c2html.h" |
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30 | |
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31 | #include "ucx/buffer.h" |
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32 | #include "ucx/list.h" |
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33 | #include "ucx/utils.h" |
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34 | |
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35 | void printhelp() { |
19 | 36 | printf("Formats source code using HTML.\n\nUsage:\n" |
37 | " c2html [Options] FILE\n\n" | |
38 | " Options:\n" | |
39 | " -h Prints this help message\n" | |
40 | " -j Highlight Java instead of C source code\n" | |
41 | " -o <output> Output file (stdout, if not specified)\n" | |
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42 | " -H <header> Prepend header file\n" |
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43 | " -F <footer> Append footer file\n" |
19 | 44 | " -p Disable highlighting (plain text)\n" |
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45 | " -l Disable line numbers\n" |
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46 | " -V, -v Prints version and exits\n" |
19 | 47 | "\n"); |
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48 | } |
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49 | |
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50 | /* TODO: remove this workaround after refactoring highlighter structure */ |
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51 | static void plainparseline(char *src, UcxBuffer *dest, int* x) { |
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52 | size_t dp = 0; |
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53 | char *buf = dest->space + dest->pos; |
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54 | while (*src && *src != '\n') { |
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55 | dp = writeescapedchar(buf, dp, *src); |
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56 | src++; |
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57 | } |
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58 | buf[dp++] = '\n'; |
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59 | buf[dp] = '\0'; |
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60 | dest->pos += dp; |
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61 | dest->size += dp; |
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62 | } |
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63 | |
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64 | int formatlines(highlighter_func highlighter, |
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65 | UcxList *in, write_func out, void *stream, int showlineno) { |
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66 | |
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67 | /* compute width of line numbering */ |
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68 | int lnw; |
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69 | if (showlineno) { |
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70 | size_t lines = ucx_list_size(in); |
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71 | lnw = 1; |
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72 | int p = 1; |
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73 | while ((p*=10) < lines) lnw++; |
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74 | } |
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75 | |
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76 | /* allocate line buffer */ |
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77 | UcxBuffer *line = ucx_buffer_new(NULL, 1024, UCX_BUFFER_AUTOEXTEND); |
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78 | if(!line) { |
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79 | return 1; |
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80 | } |
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81 | |
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82 | /* start monospace formatting */ |
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83 | out("<pre>\n", 1, 6, stream); |
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84 | |
44
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85 | /* process lines */ |
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86 | size_t lineno = 0; |
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87 | int multiline_comment = 0; |
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88 | |
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89 | UCX_FOREACH(sourceline, in) { |
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90 | /* increase line number and clean line buffer */ |
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91 | lineno++; |
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92 | ucx_buffer_clear(line); |
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93 | |
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94 | /* write line number */ |
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95 | if (showlineno) { |
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96 | ucx_bprintf(line, "<span class=\"c2html-lineno\">" |
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97 | "<a name=\"l%d\" href=\"#l%d\">%*d </a></span> ", |
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98 | lineno, lineno, lnw, lineno); |
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99 | } |
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100 | |
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101 | /* process code line */ |
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102 | highlighter(sourceline->data, line, &multiline_comment); |
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103 | |
44
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104 | /* write code line */ |
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105 | out(line->space, 1, line->size, stream); |
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106 | } |
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107 | |
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108 | /* end monospace formatting */ |
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109 | out("</pre>\n", 1, 7, stream); |
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110 | |
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111 | /* cleanup and return */ |
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112 | ucx_buffer_free(line); |
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113 | return 0; |
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114 | } |
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115 | |
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116 | #define FILEBUF_SIZE 4096 |
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117 | |
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118 | enum source_type { |
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119 | SOURCE_C, |
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120 | SOURCE_JAVA, |
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121 | SOURCE_PLAIN |
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122 | }; |
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123 | |
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124 | int main(int argc, char** argv) { |
43 | 125 | |
126 | /* Default settings */ | |
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127 | Settings settings; |
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128 | memset(&settings, 0, sizeof(settings)); |
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129 | settings.showlinenumbers = 1; |
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130 | enum source_type sourcetype = SOURCE_C; |
19 | 131 | |
43 | 132 | /* Parse command line */ |
19 | 133 | char optc; |
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134 | while ((optc = getopt(argc, argv, "hljo:pH:F:vV")) != -1) { |
19 | 135 | switch (optc) { |
136 | case 'o': | |
137 | if (!(optarg[0] == '-' && optarg[1] == 0)) { | |
138 | settings.outfilename = optarg; | |
139 | } | |
140 | break; | |
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141 | case 'F': |
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142 | settings.footerfile = optarg; |
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143 | break; |
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144 | case 'H': |
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145 | settings.headerfile = optarg; |
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146 | break; |
19 | 147 | case 'j': |
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148 | sourcetype = SOURCE_JAVA; |
19 | 149 | break; |
150 | case 'p': | |
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151 | sourcetype = SOURCE_PLAIN; |
19 | 152 | break; |
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153 | case 'l': |
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154 | settings.showlinenumbers = 0; |
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155 | break; |
19 | 156 | case 'h': |
157 | printhelp(); | |
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158 | return EXIT_SUCCESS; |
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159 | case 'v': |
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160 | case 'V': |
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161 | #ifdef VERSION_DEVELOP |
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162 | printf("%d.%d (unstable)\n", VERSION_MAJOR, VERSION_MINOR); |
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163 | #else |
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164 | printf("%d.%d\n", VERSION_MAJOR, VERSION_MINOR); |
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165 | #endif |
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166 | return EXIT_SUCCESS; |
19 | 167 | default: |
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168 | return EXIT_FAILURE; |
11 | 169 | } |
19 | 170 | } |
171 | ||
172 | if (optind != argc-1) { | |
11 | 173 | printhelp(); |
43 | 174 | return EXIT_FAILURE; |
19 | 175 | } else { |
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176 | /* Choose highlighter */ |
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177 | highlighter_func hltr = NULL; |
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178 | switch (sourcetype) { |
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179 | case SOURCE_C: |
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180 | hltr = cparseline; |
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181 | break; |
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182 | case SOURCE_JAVA: |
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183 | hltr = jparseline; |
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184 | break; |
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185 | case SOURCE_PLAIN: |
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186 | hltr = plainparseline; |
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187 | break; |
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188 | default: /* should be unreachable */ |
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189 | fprintf(stderr, "error in enum source_type\n"); |
43 | 190 | return EXIT_FAILURE; |
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191 | } |
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192 | |
43 | 193 | /* Open output file */ |
194 | settings.infilename = argv[optind]; | |
195 | FILE *fout; | |
196 | if (settings.outfilename) { | |
197 | fout = fopen(settings.outfilename, "w"); | |
198 | if (!fout) { | |
199 | perror("Error opening output file"); | |
200 | return EXIT_FAILURE; | |
201 | } | |
202 | } else { | |
203 | fout = stdout; | |
204 | } | |
205 | ||
206 | /* Allocate file buffer */ | |
207 | char *filebuf = malloc(FILEBUF_SIZE); | |
208 | if (!filebuf) { | |
209 | perror("Error allocating file buffer"); | |
210 | return EXIT_FAILURE; | |
211 | } | |
212 | ||
213 | /* Prepend header file */ | |
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214 | { |
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215 | FILE *headerfile = fopen(settings.headerfile, "r"); |
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216 | if (!headerfile) { |
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217 | perror("Error opening header file"); |
43 | 218 | if (fout != stdout) { |
219 | fclose(fout); | |
220 | } | |
221 | return EXIT_FAILURE; | |
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222 | } |
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223 | ucx_stream_copy(headerfile, fout, |
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224 | (read_func) fread, (write_func) fwrite, |
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225 | filebuf, FILEBUF_SIZE, (size_t)-1); |
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226 | fclose(headerfile); |
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227 | } |
11 | 228 | |
43 | 229 | /* Process input file */ |
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230 | FILE *inputfile = fopen(settings.infilename, "r"); |
19 | 231 | if (inputfile) { |
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232 | UcxBuffer *content = ucx_buffer_new(NULL, |
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233 | FILEBUF_SIZE*2, UCX_BUFFER_AUTOEXTEND); |
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234 | { |
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235 | ucx_stream_copy(inputfile, content, (read_func) fread, |
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236 | (write_func) ucx_buffer_write, |
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237 | filebuf, FILEBUF_SIZE, (size_t)-1); |
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238 | } |
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239 | fclose(inputfile); |
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240 | |
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241 | UcxList *inputlines = ucx_list_append(NULL, content->space); |
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242 | for (size_t i = 1 ; i < content->size ; i++) { |
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243 | if (content->space[i] == '\r') { |
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244 | content->space[i] = '\n'; i++; |
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245 | } |
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246 | if (content->space[i] == '\n' && i+1 < content->size) { |
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247 | ucx_list_append(inputlines, content->space+i+1); |
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248 | } |
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249 | } |
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250 | |
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251 | formatlines(hltr, inputlines, |
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252 | (write_func) fwrite, fout, settings.showlinenumbers); |
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253 | |
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254 | ucx_buffer_free(content); |
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255 | } else { |
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256 | perror("Error opening input file"); |
43 | 257 | if (fout != stdout) { |
258 | fclose(fout); | |
259 | } | |
260 | return EXIT_FAILURE; | |
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261 | } |
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262 | |
43 | 263 | /* Append footer file */ |
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264 | { |
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265 | FILE *footerfile = fopen(settings.footerfile, "r"); |
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266 | if (!footerfile) { |
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267 | perror("Error opening footer file"); |
43 | 268 | if (fout != stdout) { |
269 | fclose(fout); | |
270 | } | |
271 | return EXIT_FAILURE; | |
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272 | } |
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273 | ucx_stream_copy(footerfile, fout, |
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274 | (read_func) fread, (write_func) fwrite, |
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275 | filebuf, FILEBUF_SIZE, (size_t)-1); |
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276 | fclose(footerfile); |
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277 | } |
43 | 278 | |
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279 | |
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280 | free(filebuf); |
19 | 281 | |
43 | 282 | return EXIT_SUCCESS; |
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283 | } |
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284 | } |
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285 |