1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/src/frontend.c Wed Aug 31 14:41:56 2016 +0200
1.3 @@ -0,0 +1,185 @@
1.4 +/*
1.5 + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
1.6 + *
1.7 + * Copyright 2016 Mike Becker. All rights reserved.
1.8 + *
1.9 + * Redistribution and use in source and binary forms, with or without
1.10 + * modification, are permitted provided that the following conditions are met:
1.11 + *
1.12 + * 1. Redistributions of source code must retain the above copyright
1.13 + * notice, this list of conditions and the following disclaimer.
1.14 + *
1.15 + * 2. Redistributions in binary form must reproduce the above copyright
1.16 + * notice, this list of conditions and the following disclaimer in the
1.17 + * documentation and/or other materials provided with the distribution.
1.18 + *
1.19 + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
1.20 + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.21 + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
1.22 + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
1.23 + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
1.24 + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
1.25 + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
1.26 + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
1.27 + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
1.28 + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
1.29 + * POSSIBILITY OF SUCH DAMAGE.
1.30 + *
1.31 + */
1.32 +
1.33 +#include <stdio.h>
1.34 +#include <stdlib.h>
1.35 +#include <unistd.h>
1.36 +#include <string.h>
1.37 +
1.38 +#include "c2html.h"
1.39 +#include "ucx/utils.h"
1.40 +
1.41 +#define FILEBUF_SIZE 4096
1.42 +
1.43 +typedef struct {
1.44 + char* outfilename;
1.45 + char* headerfile;
1.46 + char* footerfile;
1.47 + char* infilename;
1.48 + int showlinenumbers;
1.49 +} Settings;
1.50 +
1.51 +static int appendfile(const char *filename, FILE *fout,
1.52 + char *copybuf, size_t copybuflen, const char *errmsg) {
1.53 + FILE *headerfile = fopen(filename, "r");
1.54 + if (!headerfile) {
1.55 + perror(errmsg);
1.56 + if (fout != stdout) {
1.57 + fclose(fout);
1.58 + }
1.59 + return 1;
1.60 + }
1.61 + ucx_stream_copy(headerfile, fout,
1.62 + (read_func) fread, (write_func) fwrite,
1.63 + copybuf, copybuflen, (size_t)-1);
1.64 + fclose(headerfile);
1.65 + return 0;
1.66 +}
1.67 +
1.68 +static void printhelp() {
1.69 + printf("Formats source code using HTML.\n\nUsage:\n"
1.70 + " c2html [Options] FILE\n\n"
1.71 + " Options:\n"
1.72 + " -h Prints this help message\n"
1.73 + " -j Highlight Java instead of C source code\n"
1.74 + " -o <output> Output file (stdout, if not specified)\n"
1.75 + " -H <header> Prepend header file\n"
1.76 + " -F <footer> Append footer file\n"
1.77 + " -p Disable highlighting (plain text)\n"
1.78 + " -l Disable line numbers\n"
1.79 + " -V, -v Prints version and exits\n"
1.80 + "\n");
1.81 +}
1.82 +
1.83 +int main(int argc, char** argv) {
1.84 +
1.85 + /* Default settings */
1.86 + Settings settings;
1.87 + memset(&settings, 0, sizeof(settings));
1.88 + settings.showlinenumbers = 1;
1.89 + c2html_highlighter_func hltr = c2html_c_highlighter;
1.90 +
1.91 + /* Parse command line */
1.92 + char optc;
1.93 + while ((optc = getopt(argc, argv, "hljo:pH:F:vV")) != -1) {
1.94 + switch (optc) {
1.95 + case 'o':
1.96 + if (!(optarg[0] == '-' && optarg[1] == 0)) {
1.97 + settings.outfilename = optarg;
1.98 + }
1.99 + break;
1.100 + case 'F':
1.101 + settings.footerfile = optarg;
1.102 + break;
1.103 + case 'H':
1.104 + settings.headerfile = optarg;
1.105 + break;
1.106 + case 'j':
1.107 + hltr = c2html_java_highlighter;
1.108 + break;
1.109 + case 'p':
1.110 + hltr = c2html_plain_highlighter;
1.111 + break;
1.112 + case 'l':
1.113 + settings.showlinenumbers = 0;
1.114 + break;
1.115 + case 'h':
1.116 + printhelp();
1.117 + return EXIT_SUCCESS;
1.118 + case 'v':
1.119 + case 'V':
1.120 +#ifdef VERSION_DEVELOP
1.121 + printf("%d.%d (unstable)\n", VERSION_MAJOR, VERSION_MINOR);
1.122 +#else
1.123 + printf("%d.%d\n", VERSION_MAJOR, VERSION_MINOR);
1.124 +#endif
1.125 + return EXIT_SUCCESS;
1.126 + default:
1.127 + return EXIT_FAILURE;
1.128 + }
1.129 + }
1.130 +
1.131 + if (optind != argc-1) {
1.132 + printhelp();
1.133 + return EXIT_FAILURE;
1.134 + } else {
1.135 + /* Open output file */
1.136 + settings.infilename = argv[optind];
1.137 + FILE *fout;
1.138 + if (settings.outfilename) {
1.139 + fout = fopen(settings.outfilename, "w");
1.140 + if (!fout) {
1.141 + perror("Error opening output file");
1.142 + return EXIT_FAILURE;
1.143 + }
1.144 + } else {
1.145 + fout = stdout;
1.146 + }
1.147 +
1.148 + /* Allocate file buffer */
1.149 + char *filebuf = malloc(FILEBUF_SIZE);
1.150 + if (!filebuf) {
1.151 + perror("Error allocating file buffer");
1.152 + return EXIT_FAILURE;
1.153 + }
1.154 +
1.155 + /* Prepend header file */
1.156 + if (appendfile(settings.headerfile, fout, filebuf, FILEBUF_SIZE,
1.157 + "Error opening header file")) {
1.158 + return EXIT_FAILURE;
1.159 + }
1.160 +
1.161 + /* Process input file */
1.162 + FILE *inputfile = fopen(settings.infilename, "r");
1.163 + if (inputfile) {
1.164 + c2html_fformat_file(
1.165 + inputfile, filebuf, FILEBUF_SIZE,
1.166 + fout, hltr, settings.showlinenumbers
1.167 + );
1.168 + fclose(inputfile);
1.169 + } else {
1.170 + perror("Error opening input file");
1.171 + if (fout != stdout) {
1.172 + fclose(fout);
1.173 + }
1.174 + return EXIT_FAILURE;
1.175 + }
1.176 +
1.177 + /* Append footer file */
1.178 + if (appendfile(settings.footerfile, fout, filebuf, FILEBUF_SIZE,
1.179 + "Error opening footer file")) {
1.180 + return EXIT_FAILURE;
1.181 + }
1.182 +
1.183 + free(filebuf);
1.184 +
1.185 + return EXIT_SUCCESS;
1.186 + }
1.187 +}
1.188 +
