1.1 --- a/src/c2html.c Fri May 24 11:04:56 2013 +0200
1.2 +++ b/src/c2html.c Fri May 24 13:35:06 2013 +0200
1.3 @@ -1,4 +1,146 @@
1.4 -int main(int argc, char** argv) {
1.5 - return 0;
1.6 +/*
1.7 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
1.8 + *
1.9 + * Copyright 2013 Mike Becker. All rights reserved.
1.10 + *
1.11 + * Redistribution and use in source and binary forms, with or without
1.12 + * modification, are permitted provided that the following conditions are met:
1.13 + *
1.14 + * 1. Redistributions of source code must retain the above copyright
1.15 + * notice, this list of conditions and the following disclaimer.
1.16 + *
1.17 + * 2. Redistributions in binary form must reproduce the above copyright
1.18 + * notice, this list of conditions and the following disclaimer in the
1.19 + * documentation and/or other materials provided with the distribution.
1.20 + *
1.21 + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
1.22 + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.23 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.24 + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
1.25 + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.26 + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
1.27 + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
1.28 + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
1.29 + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1.30 + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1.31 + * POSSIBILITY OF SUCH DAMAGE.
1.32 + *
1.33 + */
1.34 +
1.35 +#include <stdio.h>
1.36 +#include <stdlib.h>
1.37 +#include <string.h>
1.38 +#include <fcntl.h>
1.39 +#include <unistd.h>
1.40 +#include "c2html.h"
1.41 +
1.42 +inputfile_t *inputfilebuffer(size_t capacity) {
1.43 + inputfile_t *inputfile = (inputfile_t*) malloc(sizeof(inputfile_t));
1.44 + inputfile->lines = (char**) malloc(capacity * sizeof(char*));
1.45 + inputfile->capacity = capacity;
1.46 + inputfile->count = 0;
1.47 +
1.48 + return inputfile;
1.49 }
1.50
1.51 +void addline(inputfile_t *inputfile, char* line, size_t width) {
1.52 + char *l = (char*) malloc(width+1);
1.53 + memcpy(l, line, width);
1.54 + l[width] = 0;
1.55 + if (inputfile->count >= inputfile->capacity) {
1.56 + inputfile->capacity <<= 1;
1.57 + inputfile->lines = realloc(inputfile->lines, inputfile->capacity);
1.58 + }
1.59 + inputfile->lines[inputfile->count] = l;
1.60 + inputfile->count++;
1.61 +}
1.62 +
1.63 +void freeinputfilebuffer(inputfile_t *inputfile) {
1.64 + for (int i = 0 ; i < inputfile->count ; i++) {
1.65 + free(inputfile->lines[i]);
1.66 + }
1.67 + free(inputfile->lines);
1.68 + free(inputfile);
1.69 +}
1.70 +
1.71 +inputfile_t *readinput(char *filename) {
1.72 +
1.73 + int fd = open(filename, O_RDONLY);
1.74 + if (fd == -1) return NULL;
1.75 +
1.76 + inputfile_t *inputfile = inputfilebuffer(512);
1.77 +
1.78 + const size_t bufsize = 1024;
1.79 + char buf[bufsize];
1.80 + ssize_t r;
1.81 +
1.82 + size_t maxlinewidth = 80;
1.83 + char *line = (char*) malloc(maxlinewidth);
1.84 + size_t col = 0;
1.85 +
1.86 + while ((r = read(fd, buf, bufsize)) > 0) {
1.87 + for (size_t i = 0 ; i < r ; i++) {
1.88 + if (col >= maxlinewidth-4) {
1.89 + maxlinewidth <<= 1;
1.90 + line = realloc(line, maxlinewidth);
1.91 + }
1.92 +
1.93 + if (buf[i] == '\n') {
1.94 + line[col] = 0;
1.95 + addline(inputfile, line, col);
1.96 + col = 0;
1.97 + } else if (buf[i] == '<') {
1.98 + line[col++] = '&'; line[col++] = 'l';
1.99 + line[col++] = 't'; line[col++] = ';';
1.100 + } else if (buf[i] == '>') {
1.101 + line[col++] = '&'; line[col++] = 'g';
1.102 + line[col++] = 't'; line[col++] = ';';
1.103 + } else {
1.104 + line[col++] = buf[i];
1.105 + }
1.106 + }
1.107 + }
1.108 +
1.109 + free(line);
1.110 +
1.111 + close(fd);
1.112 +
1.113 + return inputfile;
1.114 +}
1.115 +
1.116 +void printhelp() {
1.117 + printf("Formats source code using HTML.\n\nUsage:\n"
1.118 + " c2html [FILE...]"
1.119 + "\n");
1.120 +
1.121 +
1.122 +}
1.123 +
1.124 +int lnw(size_t lnc) {
1.125 + int w = 1, p = 1;
1.126 + while ((p*=10) < lnc) w++;
1.127 + return w;
1.128 +}
1.129 +
1.130 +int main(int argc, char** argv) {
1.131 +
1.132 + if (argc == 1) {
1.133 + printhelp();
1.134 + return 0;
1.135 + } else {
1.136 +
1.137 + inputfile_t *inputfile = readinput(argv[1]);
1.138 + if (inputfile) {
1.139 + printf("<pre>\n");
1.140 + for (int i = 0 ; i < inputfile->count ; i++) {
1.141 + printf("%*d: %s\n", lnw(inputfile->count),
1.142 + i, inputfile->lines[i]);
1.143 + }
1.144 + printf("</pre>\n");
1.145 + freeinputfilebuffer(inputfile);
1.146 + }
1.147 +
1.148 + return 0;
1.149 + }
1.150 +}
1.151 +
