Thu, 23 Jan 2014 09:19:37 +0100
structured source code
universe@1 | 1 | /* |
universe@1 | 2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
universe@1 | 3 | * |
universe@21 | 4 | * Copyright 2014 Mike Becker. All rights reserved. |
universe@1 | 5 | * |
universe@1 | 6 | * Redistribution and use in source and binary forms, with or without |
universe@1 | 7 | * modification, are permitted provided that the following conditions are met: |
universe@1 | 8 | * |
universe@1 | 9 | * 1. Redistributions of source code must retain the above copyright |
universe@1 | 10 | * notice, this list of conditions and the following disclaimer. |
universe@1 | 11 | * |
universe@1 | 12 | * 2. Redistributions in binary form must reproduce the above copyright |
universe@1 | 13 | * notice, this list of conditions and the following disclaimer in the |
universe@1 | 14 | * documentation and/or other materials provided with the distribution. |
universe@1 | 15 | * |
universe@1 | 16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
universe@1 | 17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
universe@1 | 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
universe@1 | 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
universe@1 | 20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
universe@1 | 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
universe@1 | 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
universe@1 | 23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
universe@1 | 24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
universe@1 | 25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
universe@1 | 26 | * POSSIBILITY OF SUCH DAMAGE. |
universe@1 | 27 | * |
universe@1 | 28 | */ |
universe@1 | 29 | |
universe@1 | 30 | #include <stdio.h> |
universe@1 | 31 | #include <stdlib.h> |
universe@1 | 32 | #include <string.h> |
universe@1 | 33 | #include <fcntl.h> |
universe@1 | 34 | #include <unistd.h> |
universe@4 | 35 | #include <ctype.h> |
universe@4 | 36 | |
universe@21 | 37 | #include "javacodegen.h" |
universe@21 | 38 | #include "ccodegen.h" |
universe@21 | 39 | |
universe@4 | 40 | #define INPUTBUF_SIZE 2048 |
universe@16 | 41 | |
universe@11 | 42 | typedef struct { |
universe@19 | 43 | char* outfilename; |
universe@19 | 44 | char* infilename; |
universe@19 | 45 | int highlight; |
universe@11 | 46 | } settings_t; |
universe@4 | 47 | |
universe@4 | 48 | typedef struct { |
universe@19 | 49 | size_t count; |
universe@19 | 50 | size_t capacity; |
universe@19 | 51 | size_t maxlinewidth; |
universe@19 | 52 | char** lines; |
universe@4 | 53 | } inputfile_t; |
universe@1 | 54 | |
universe@1 | 55 | inputfile_t *inputfilebuffer(size_t capacity) { |
universe@19 | 56 | inputfile_t *inputfile = (inputfile_t*) malloc(sizeof(inputfile_t)); |
universe@19 | 57 | inputfile->lines = (char**) malloc(capacity * sizeof(char*)); |
universe@19 | 58 | inputfile->capacity = capacity; |
universe@19 | 59 | inputfile->count = 0; |
universe@19 | 60 | inputfile->maxlinewidth = 0; |
universe@19 | 61 | |
universe@19 | 62 | return inputfile; |
universe@0 | 63 | } |
universe@0 | 64 | |
universe@1 | 65 | void addline(inputfile_t *inputfile, char* line, size_t width) { |
universe@19 | 66 | char *l = (char*) malloc(width+1); |
universe@19 | 67 | memcpy(l, line, width); |
universe@19 | 68 | l[width] = 0; |
universe@19 | 69 | if (inputfile->count >= inputfile->capacity) { |
universe@19 | 70 | inputfile->capacity <<= 1; |
universe@19 | 71 | inputfile->lines = realloc(inputfile->lines, inputfile->capacity); |
universe@19 | 72 | } |
universe@19 | 73 | inputfile->lines[inputfile->count] = l; |
universe@19 | 74 | inputfile->maxlinewidth = |
universe@19 | 75 | width > inputfile->maxlinewidth ? width : inputfile->maxlinewidth; |
universe@19 | 76 | inputfile->count++; |
universe@1 | 77 | } |
universe@1 | 78 | |
universe@1 | 79 | void freeinputfilebuffer(inputfile_t *inputfile) { |
universe@19 | 80 | for (int i = 0 ; i < inputfile->count ; i++) { |
universe@19 | 81 | free(inputfile->lines[i]); |
universe@19 | 82 | } |
universe@19 | 83 | free(inputfile->lines); |
universe@19 | 84 | free(inputfile); |
universe@1 | 85 | } |
universe@1 | 86 | |
universe@1 | 87 | inputfile_t *readinput(char *filename) { |
universe@1 | 88 | |
universe@19 | 89 | int fd = open(filename, O_RDONLY); |
universe@19 | 90 | if (fd == -1) return NULL; |
universe@1 | 91 | |
universe@19 | 92 | inputfile_t *inputfile = inputfilebuffer(512); |
universe@19 | 93 | |
universe@19 | 94 | char buf[INPUTBUF_SIZE]; |
universe@19 | 95 | ssize_t r; |
universe@19 | 96 | |
universe@19 | 97 | size_t maxlinewidth = 256; |
universe@19 | 98 | char *line = (char*) malloc(maxlinewidth); |
universe@19 | 99 | size_t col = 0; |
universe@19 | 100 | |
universe@19 | 101 | while ((r = read(fd, buf, INPUTBUF_SIZE)) > 0) { |
universe@19 | 102 | for (size_t i = 0 ; i < r ; i++) { |
universe@19 | 103 | if (col >= maxlinewidth-4) { |
universe@19 | 104 | maxlinewidth <<= 1; |
universe@19 | 105 | line = realloc(line, maxlinewidth); |
universe@19 | 106 | } |
universe@19 | 107 | |
universe@19 | 108 | if (buf[i] == '\n') { |
universe@19 | 109 | line[col++] = '\n'; |
universe@19 | 110 | line[col] = 0; |
universe@19 | 111 | addline(inputfile, line, col); |
universe@19 | 112 | col = 0; |
universe@19 | 113 | } else { |
universe@19 | 114 | line[col++] = buf[i]; |
universe@19 | 115 | } |
universe@19 | 116 | } |
universe@1 | 117 | } |
universe@19 | 118 | |
universe@19 | 119 | free(line); |
universe@19 | 120 | |
universe@19 | 121 | close(fd); |
universe@19 | 122 | |
universe@19 | 123 | return inputfile; |
universe@1 | 124 | } |
universe@1 | 125 | |
universe@1 | 126 | void printhelp() { |
universe@19 | 127 | printf("Formats source code using HTML.\n\nUsage:\n" |
universe@19 | 128 | " c2html [Options] FILE\n\n" |
universe@19 | 129 | " Options:\n" |
universe@19 | 130 | " -h Prints this help message\n" |
universe@19 | 131 | " -j Highlight Java instead of C source code\n" |
universe@19 | 132 | " -o <output> Output file (stdout, if not specified)\n" |
universe@19 | 133 | " -p Disable highlighting (plain text)\n" |
universe@19 | 134 | "\n"); |
universe@19 | 135 | |
universe@19 | 136 | |
universe@1 | 137 | } |
universe@1 | 138 | |
universe@4 | 139 | int lnint(size_t lnc) { |
universe@19 | 140 | int w = 1, p = 1; |
universe@19 | 141 | while ((p*=10) < lnc) w++; |
universe@19 | 142 | return w; |
universe@1 | 143 | } |
universe@1 | 144 | |
universe@1 | 145 | int main(int argc, char** argv) { |
universe@19 | 146 | settings_t settings; |
universe@19 | 147 | settings.outfilename = NULL; |
universe@19 | 148 | settings.highlight = 1; |
universe@19 | 149 | |
universe@19 | 150 | highlighter_t highlighter; |
universe@20 | 151 | memset(&highlighter, 0, sizeof(highlighter)); |
universe@19 | 152 | highlighter.isdirective = iscdirective; |
universe@19 | 153 | highlighter.istype = isctype; |
universe@19 | 154 | highlighter.keywords = ckeywords; |
universe@21 | 155 | highlighter.parser = cparseline; |
universe@19 | 156 | |
universe@19 | 157 | char optc; |
universe@19 | 158 | while ((optc = getopt(argc, argv, "hjo:p")) != -1) { |
universe@19 | 159 | switch (optc) { |
universe@19 | 160 | case 'o': |
universe@19 | 161 | if (!(optarg[0] == '-' && optarg[1] == 0)) { |
universe@19 | 162 | settings.outfilename = optarg; |
universe@19 | 163 | } |
universe@19 | 164 | break; |
universe@19 | 165 | case 'j': |
universe@19 | 166 | highlighter.isdirective = isjdirective; |
universe@19 | 167 | highlighter.istype = isjtype; |
universe@19 | 168 | highlighter.keywords = jkeywords; |
universe@21 | 169 | highlighter.parser = jparseline; |
universe@19 | 170 | break; |
universe@19 | 171 | case 'p': |
universe@19 | 172 | settings.highlight = 0; |
universe@19 | 173 | break; |
universe@19 | 174 | case 'h': |
universe@19 | 175 | printhelp(); |
universe@19 | 176 | return 0; |
universe@19 | 177 | default: |
universe@19 | 178 | return 1; |
universe@11 | 179 | } |
universe@19 | 180 | } |
universe@19 | 181 | |
universe@19 | 182 | if (optind != argc-1) { |
universe@11 | 183 | printhelp(); |
universe@19 | 184 | return 1; |
universe@19 | 185 | } else { |
universe@19 | 186 | settings.infilename = argv[optind]; |
universe@19 | 187 | |
universe@19 | 188 | inputfile_t *inputfile = readinput(settings.infilename); |
universe@19 | 189 | if (inputfile) { |
universe@19 | 190 | FILE *fout; |
universe@19 | 191 | char *line; |
universe@19 | 192 | if (settings.highlight) { |
universe@19 | 193 | line = (char*) malloc(inputfile->maxlinewidth*64); |
universe@19 | 194 | } else { |
universe@19 | 195 | line = NULL; |
universe@19 | 196 | } |
universe@19 | 197 | if (settings.outfilename) { |
universe@19 | 198 | fout = fopen(settings.outfilename, "w"); |
universe@19 | 199 | } else { |
universe@19 | 200 | fout = stdout; |
universe@19 | 201 | } |
universe@19 | 202 | fprintf(fout, "<pre>\n"); |
universe@19 | 203 | int lnw = lnint(inputfile->count); |
universe@19 | 204 | for (int i = 0 ; i < inputfile->count ; i++) { |
universe@19 | 205 | if (settings.highlight) { |
universe@21 | 206 | highlighter.parser(inputfile->lines[i], line, &highlighter); |
universe@19 | 207 | } else { |
universe@19 | 208 | line = inputfile->lines[i]; |
universe@19 | 209 | } |
universe@19 | 210 | fprintf(fout, "<span class=\"c2html-lineno\">%*d:</span> %s", |
universe@19 | 211 | lnw, i+1, line); |
universe@19 | 212 | } |
universe@19 | 213 | if (settings.highlight) { |
universe@19 | 214 | free(line); |
universe@19 | 215 | } |
universe@19 | 216 | fprintf(fout, "</pre>\n"); |
universe@19 | 217 | |
universe@19 | 218 | if (fout != stdout) { |
universe@19 | 219 | fclose(fout); |
universe@19 | 220 | } |
universe@19 | 221 | |
universe@19 | 222 | freeinputfilebuffer(inputfile); |
universe@19 | 223 | } |
universe@19 | 224 | |
universe@11 | 225 | return 0; |
universe@11 | 226 | } |
universe@1 | 227 | } |
universe@1 | 228 |