comparison: src/frontend.c
src/frontend.c
- changeset 55
- bf54085ce341
- child 57
- eba880c1705c
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| 54:b3f24e23bc25 | 55:bf54085ce341 |
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| 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 | |
| 30 #include <stdio.h> | |
| 31 #include <stdlib.h> | |
| 32 #include <unistd.h> | |
| 33 #include <string.h> | |
| 34 | |
| 35 #include "c2html.h" | |
| 36 #include "ucx/utils.h" | |
| 37 | |
| 38 #define FILEBUF_SIZE 4096 | |
| 39 | |
| 40 typedef struct { | |
| 41 char* outfilename; | |
| 42 char* headerfile; | |
| 43 char* footerfile; | |
| 44 char* infilename; | |
| 45 int showlinenumbers; | |
| 46 } Settings; | |
| 47 | |
| 48 static int appendfile(const char *filename, FILE *fout, | |
| 49 char *copybuf, size_t copybuflen, const char *errmsg) { | |
| 50 FILE *headerfile = fopen(filename, "r"); | |
| 51 if (!headerfile) { | |
| 52 perror(errmsg); | |
| 53 if (fout != stdout) { | |
| 54 fclose(fout); | |
| 55 } | |
| 56 return 1; | |
| 57 } | |
| 58 ucx_stream_copy(headerfile, fout, | |
| 59 (read_func) fread, (write_func) fwrite, | |
| 60 copybuf, copybuflen, (size_t)-1); | |
| 61 fclose(headerfile); | |
| 62 return 0; | |
| 63 } | |
| 64 | |
| 65 static void printhelp() { | |
| 66 printf("Formats source code using HTML.\n\nUsage:\n" | |
| 67 " c2html [Options] FILE\n\n" | |
| 68 " Options:\n" | |
| 69 " -h Prints this help message\n" | |
| 70 " -j Highlight Java instead of C source code\n" | |
| 71 " -o <output> Output file (stdout, if not specified)\n" | |
| 72 " -H <header> Prepend header file\n" | |
| 73 " -F <footer> Append footer file\n" | |
| 74 " -p Disable highlighting (plain text)\n" | |
| 75 " -l Disable line numbers\n" | |
| 76 " -V, -v Prints version and exits\n" | |
| 77 "\n"); | |
| 78 } | |
| 79 | |
| 80 int main(int argc, char** argv) { | |
| 81 | |
| 82 /* Default settings */ | |
| 83 Settings settings; | |
| 84 memset(&settings, 0, sizeof(settings)); | |
| 85 settings.showlinenumbers = 1; | |
| 86 c2html_highlighter_func hltr = c2html_c_highlighter; | |
| 87 | |
| 88 /* Parse command line */ | |
| 89 char optc; | |
| 90 while ((optc = getopt(argc, argv, "hljo:pH:F:vV")) != -1) { | |
| 91 switch (optc) { | |
| 92 case 'o': | |
| 93 if (!(optarg[0] == '-' && optarg[1] == 0)) { | |
| 94 settings.outfilename = optarg; | |
| 95 } | |
| 96 break; | |
| 97 case 'F': | |
| 98 settings.footerfile = optarg; | |
| 99 break; | |
| 100 case 'H': | |
| 101 settings.headerfile = optarg; | |
| 102 break; | |
| 103 case 'j': | |
| 104 hltr = c2html_java_highlighter; | |
| 105 break; | |
| 106 case 'p': | |
| 107 hltr = c2html_plain_highlighter; | |
| 108 break; | |
| 109 case 'l': | |
| 110 settings.showlinenumbers = 0; | |
| 111 break; | |
| 112 case 'h': | |
| 113 printhelp(); | |
| 114 return EXIT_SUCCESS; | |
| 115 case 'v': | |
| 116 case 'V': | |
| 117 #ifdef VERSION_DEVELOP | |
| 118 printf("%d.%d (unstable)\n", VERSION_MAJOR, VERSION_MINOR); | |
| 119 #else | |
| 120 printf("%d.%d\n", VERSION_MAJOR, VERSION_MINOR); | |
| 121 #endif | |
| 122 return EXIT_SUCCESS; | |
| 123 default: | |
| 124 return EXIT_FAILURE; | |
| 125 } | |
| 126 } | |
| 127 | |
| 128 if (optind != argc-1) { | |
| 129 printhelp(); | |
| 130 return EXIT_FAILURE; | |
| 131 } else { | |
| 132 /* Open output file */ | |
| 133 settings.infilename = argv[optind]; | |
| 134 FILE *fout; | |
| 135 if (settings.outfilename) { | |
| 136 fout = fopen(settings.outfilename, "w"); | |
| 137 if (!fout) { | |
| 138 perror("Error opening output file"); | |
| 139 return EXIT_FAILURE; | |
| 140 } | |
| 141 } else { | |
| 142 fout = stdout; | |
| 143 } | |
| 144 | |
| 145 /* Allocate file buffer */ | |
| 146 char *filebuf = malloc(FILEBUF_SIZE); | |
| 147 if (!filebuf) { | |
| 148 perror("Error allocating file buffer"); | |
| 149 return EXIT_FAILURE; | |
| 150 } | |
| 151 | |
| 152 /* Prepend header file */ | |
| 153 if (appendfile(settings.headerfile, fout, filebuf, FILEBUF_SIZE, | |
| 154 "Error opening header file")) { | |
| 155 return EXIT_FAILURE; | |
| 156 } | |
| 157 | |
| 158 /* Process input file */ | |
| 159 FILE *inputfile = fopen(settings.infilename, "r"); | |
| 160 if (inputfile) { | |
| 161 c2html_fformat_file( | |
| 162 inputfile, filebuf, FILEBUF_SIZE, | |
| 163 fout, hltr, settings.showlinenumbers | |
| 164 ); | |
| 165 fclose(inputfile); | |
| 166 } else { | |
| 167 perror("Error opening input file"); | |
| 168 if (fout != stdout) { | |
| 169 fclose(fout); | |
| 170 } | |
| 171 return EXIT_FAILURE; | |
| 172 } | |
| 173 | |
| 174 /* Append footer file */ | |
| 175 if (appendfile(settings.footerfile, fout, filebuf, FILEBUF_SIZE, | |
| 176 "Error opening footer file")) { | |
| 177 return EXIT_FAILURE; | |
| 178 } | |
| 179 | |
| 180 free(filebuf); | |
| 181 | |
| 182 return EXIT_SUCCESS; | |
| 183 } | |
| 184 } | |
| 185 |
