Tue, 23 Aug 2016 15:07:29 +0200
cleans up formatfile function up to the parser call
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 | */ | |
22
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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" | |
22
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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 | int formatfile( |
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51 | highlighter_t *highlighter, |
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52 | UcxList *in, |
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53 | write_func out, void *stream, |
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54 | int showlineno) { |
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55 | |
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56 | /* compute width of line numbering */ |
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57 | int lnw; |
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58 | if (showlineno) { |
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59 | size_t lines = ucx_list_size(in); |
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60 | lnw = 1; |
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61 | int p = 1; |
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62 | while ((p*=10) < lines) lnw++; |
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63 | } |
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64 | |
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65 | /* allocate line buffer */ |
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66 | UcxBuffer *line = ucx_buffer_new(NULL, 1024, UCX_BUFFER_AUTOEXTEND); |
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67 | if(!line) { |
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68 | return 1; |
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69 | } |
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70 | |
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71 | /* start monospace formatting */ |
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72 | out("<pre>\n", 1, 6, stream); |
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73 | |
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74 | /* process lines */ |
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75 | size_t lineno = 0; |
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76 | UCX_FOREACH(sourceline, in) { |
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77 | /* increase line number and clean line buffer */ |
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78 | lineno++; |
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79 | ucx_buffer_clear(line); |
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80 | |
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81 | /* write line number */ |
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82 | if (showlineno) { |
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83 | ucx_bprintf(line, "<span class=\"c2html-lineno\">" |
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84 | "<a name=\"l%d\" href=\"#l%d\">%*d </a></span> ", |
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85 | lineno, lineno, lnw, lineno); |
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86 | } |
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87 | |
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88 | /* TODO: backwards compatibility: replace line->space in all occasions |
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89 | * and use UcxBuffer functions |
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90 | */ |
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91 | char *buf = line->space + line->pos; |
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92 | if (highlighter) { |
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93 | highlighter->parser(sourceline->data, buf, highlighter); |
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94 | } else { |
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95 | char *c = sourceline->data; |
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96 | size_t dp = 0; |
40 | 97 | while (*c && *c != '\n') { |
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98 | dp = writeescapedchar(buf, dp, *c); |
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99 | c++; |
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100 | } |
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101 | buf[dp++] = '\n'; |
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102 | buf[dp] = '\0'; |
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103 | } |
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104 | line->size = strlen(line->space); |
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105 | |
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106 | /* write code line */ |
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107 | out(line->space, 1, line->size, stream); |
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108 | } |
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109 | |
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110 | /* end monospace formatting */ |
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111 | out("</pre>\n", 1, 7, stream); |
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112 | |
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113 | /* cleanup and return */ |
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114 | ucx_buffer_free(line); |
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115 | return 0; |
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116 | } |
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117 | |
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118 | void init_c_highlighter(highlighter_t *highlighter) { |
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119 | memset(highlighter, 0, sizeof(highlighter_t)); |
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120 | highlighter->isdirective = check_cdirective; |
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121 | highlighter->istype = check_ctype; |
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122 | highlighter->keywords = ckeywords; |
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123 | highlighter->parser = cparseline; |
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124 | } |
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125 | |
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126 | void init_java_highlighter(highlighter_t *highlighter) { |
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127 | memset(highlighter, 0, sizeof(highlighter_t)); |
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128 | highlighter->isdirective = check_jdirective; |
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129 | highlighter->istype = check_jtype; |
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130 | highlighter->keywords = jkeywords; |
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131 | highlighter->parser = jparseline; |
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132 | } |
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133 | |
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134 | #define FILEBUF_SIZE 4096 |
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135 | |
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136 | enum source_type { |
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137 | SOURCE_C, |
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138 | SOURCE_JAVA, |
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139 | SOURCE_PLAIN |
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140 | }; |
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141 | |
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142 | int main(int argc, char** argv) { |
43 | 143 | |
144 | /* Default settings */ | |
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145 | Settings settings; |
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146 | memset(&settings, 0, sizeof(settings)); |
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147 | settings.showlinenumbers = 1; |
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148 | enum source_type sourcetype = SOURCE_C; |
19 | 149 | |
43 | 150 | /* Parse command line */ |
19 | 151 | char optc; |
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152 | while ((optc = getopt(argc, argv, "hljo:pH:F:vV")) != -1) { |
19 | 153 | switch (optc) { |
154 | case 'o': | |
155 | if (!(optarg[0] == '-' && optarg[1] == 0)) { | |
156 | settings.outfilename = optarg; | |
157 | } | |
158 | break; | |
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159 | case 'F': |
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160 | settings.footerfile = optarg; |
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161 | break; |
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162 | case 'H': |
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163 | settings.headerfile = optarg; |
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164 | break; |
19 | 165 | case 'j': |
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166 | sourcetype = SOURCE_JAVA; |
19 | 167 | break; |
168 | case 'p': | |
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169 | sourcetype = SOURCE_PLAIN; |
19 | 170 | break; |
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171 | case 'l': |
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172 | settings.showlinenumbers = 0; |
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173 | break; |
19 | 174 | case 'h': |
175 | printhelp(); | |
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176 | return EXIT_SUCCESS; |
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177 | case 'v': |
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178 | case 'V': |
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179 | #ifdef VERSION_DEVELOP |
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180 | printf("%d.%d (unstable)\n", VERSION_MAJOR, VERSION_MINOR); |
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181 | #else |
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182 | printf("%d.%d\n", VERSION_MAJOR, VERSION_MINOR); |
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183 | #endif |
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184 | return EXIT_SUCCESS; |
19 | 185 | default: |
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186 | return EXIT_FAILURE; |
11 | 187 | } |
19 | 188 | } |
189 | ||
190 | if (optind != argc-1) { | |
11 | 191 | printhelp(); |
43 | 192 | return EXIT_FAILURE; |
19 | 193 | } else { |
43 | 194 | /* Configure highlighter */ |
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195 | highlighter_t highlighter; |
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196 | highlighter_t *hptr = &highlighter; |
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197 | switch (sourcetype) { |
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198 | case SOURCE_C: |
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199 | init_c_highlighter(&highlighter); |
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200 | break; |
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201 | case SOURCE_JAVA: |
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202 | init_java_highlighter(&highlighter); |
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203 | break; |
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204 | case SOURCE_PLAIN: |
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205 | hptr = NULL; |
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206 | break; |
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207 | default: /* should be unreachable */ |
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208 | fprintf(stderr, "error in enum source_type\n"); |
43 | 209 | return EXIT_FAILURE; |
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210 | } |
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211 | |
43 | 212 | /* Open output file */ |
213 | settings.infilename = argv[optind]; | |
214 | FILE *fout; | |
215 | if (settings.outfilename) { | |
216 | fout = fopen(settings.outfilename, "w"); | |
217 | if (!fout) { | |
218 | perror("Error opening output file"); | |
219 | return EXIT_FAILURE; | |
220 | } | |
221 | } else { | |
222 | fout = stdout; | |
223 | } | |
224 | ||
225 | /* Allocate file buffer */ | |
226 | char *filebuf = malloc(FILEBUF_SIZE); | |
227 | if (!filebuf) { | |
228 | perror("Error allocating file buffer"); | |
229 | return EXIT_FAILURE; | |
230 | } | |
231 | ||
232 | /* Prepend header file */ | |
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233 | { |
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234 | FILE *headerfile = fopen(settings.headerfile, "r"); |
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235 | if (!headerfile) { |
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236 | perror("Error opening header file"); |
43 | 237 | if (fout != stdout) { |
238 | fclose(fout); | |
239 | } | |
240 | return EXIT_FAILURE; | |
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241 | } |
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242 | ucx_stream_copy(headerfile, fout, |
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243 | (read_func) fread, (write_func) fwrite, |
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244 | filebuf, FILEBUF_SIZE, (size_t)-1); |
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245 | fclose(headerfile); |
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246 | } |
11 | 247 | |
43 | 248 | /* Process input file */ |
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249 | FILE *inputfile = fopen(settings.infilename, "r"); |
19 | 250 | if (inputfile) { |
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251 | UcxBuffer *content = ucx_buffer_new(NULL, |
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252 | FILEBUF_SIZE*2, UCX_BUFFER_AUTOEXTEND); |
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253 | { |
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254 | ucx_stream_copy(inputfile, content, (read_func) fread, |
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255 | (write_func) ucx_buffer_write, |
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256 | filebuf, FILEBUF_SIZE, (size_t)-1); |
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257 | } |
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258 | fclose(inputfile); |
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259 | |
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260 | UcxList *inputlines = ucx_list_append(NULL, content->space); |
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261 | for (size_t i = 1 ; i < content->size ; i++) { |
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262 | if (content->space[i] == '\r') { |
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263 | content->space[i] = '\n'; i++; |
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264 | } |
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265 | if (content->space[i] == '\n' && i+1 < content->size) { |
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266 | ucx_list_append(inputlines, content->space+i+1); |
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267 | } |
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268 | } |
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269 | |
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270 | formatfile( |
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271 | hptr, |
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272 | inputlines, |
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273 | (write_func) fwrite, |
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274 | fout, |
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275 | settings.showlinenumbers); |
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276 | ucx_buffer_free(content); |
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277 | } else { |
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278 | perror("Error opening input file"); |
43 | 279 | if (fout != stdout) { |
280 | fclose(fout); | |
281 | } | |
282 | return EXIT_FAILURE; | |
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283 | } |
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284 | |
43 | 285 | /* Append footer file */ |
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286 | { |
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287 | FILE *footerfile = fopen(settings.footerfile, "r"); |
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288 | if (!footerfile) { |
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289 | perror("Error opening footer file"); |
43 | 290 | if (fout != stdout) { |
291 | fclose(fout); | |
292 | } | |
293 | return EXIT_FAILURE; | |
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294 | } |
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295 | ucx_stream_copy(footerfile, fout, |
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296 | (read_func) fread, (write_func) fwrite, |
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297 | filebuf, FILEBUF_SIZE, (size_t)-1); |
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298 | fclose(footerfile); |
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299 | } |
43 | 300 | |
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301 | |
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302 | free(filebuf); |
19 | 303 | |
43 | 304 | return EXIT_SUCCESS; |
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305 | } |
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306 | } |
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307 |