c2html: src/frontend.c@5da2cb5aea6b (annotated)

src/frontend.c@5da2cb5aea6b (annotated)

src/frontend.c

Mon, 24 Apr 2023 21:01:41 +0200

author: Mike Becker <universe@uap-core.de>
date: Mon, 24 Apr 2023 21:01:41 +0200
changeset 67: 5da2cb5aea6b
parent 66: 1b12cf799fee
parent 61: 47a5fc33590a
child 70: 60cecca5e484
permissions: -rw-r--r--

merge upstream changes

 /*
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
  *
  * Copyright 2016 Mike Becker. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *   1. Redistributions of source code must retain the above copyright
  *      notice, this list of conditions and the following disclaimer.
  *
  *   2. Redistributions in binary form must reproduce the above copyright
  *      notice, this list of conditions and the following disclaimer in the
  *      documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  *
  */
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
 #include <string.h>
 #include "c2html.h"
 #include <cx/utils.h>
 typedef struct {
     char* outfilename;
     char* headerfile;
     char* footerfile;
     char* infilename;
     int showlinenumbers;
 } Settings;
 static int appendfile(const char *filename, FILE *fout, const char *errmsg) {
     FILE *fin = fopen(filename, "r");
     if (!fin) {
         perror(errmsg);
         if (fout != stdout) {
             fclose(fout);
         }
         return 1;
     }
     cx_stream_copy(fin, fout, (cx_read_func) fread, (cx_write_func) fwrite);
     fclose(fin);
     return 0;
 }
 static void printhelp() {
     printf("Formats source code using HTML.\n\nUsage:\n"
         "  c2html [Options] FILE\n\n"
         " Options:\n"
         "  -h                    Prints this help message\n"
         "  -j                    Highlight Java instead of C source code\n"
         "  -o <output>           Output file (stdout, if not specified)\n"
         "  -H <header>           Prepend header file\n"
         "  -F <footer>           Append footer file\n"
         "  -p                    Disable highlighting (plain text)\n"
         "  -l                    Disable line numbers\n"
         "  -V, -v                Prints version and exits\n"
         "\n");
 }
 int main(int argc, char** argv) {
     /* Default settings */
     Settings settings;
     memset(&settings, 0, sizeof(settings));
     settings.showlinenumbers = 1;
     c2html_highlighter_func hltr = c2html_c_highlighter;
     /* Parse command line */
     int optc;
     while ((optc = getopt(argc, argv, "hljo:pH:F:vV")) != -1) {
         switch (optc) {
             case 'o':
                 if (!(optarg[0] == '-' && optarg[1] == 0)) {
                     settings.outfilename = optarg;
                 }
                 break;
             case 'F':
                 settings.footerfile = optarg;
                 break;
             case 'H':
                 settings.headerfile = optarg;
                 break;
             case 'j':
                 hltr = c2html_java_highlighter;
                 break;
             case 'p':
                 hltr = c2html_plain_highlighter;
                 break;
             case 'l':
                 settings.showlinenumbers = 0;
                 break;
             case 'h':
                 printhelp();
                 return EXIT_SUCCESS;
             case 'v':
             case 'V':
 #ifdef VERSION_DEVELOP
                 printf("%d.%d (unstable)\n", VERSION_MAJOR, VERSION_MINOR);
 #else
                 printf("%d.%d\n", VERSION_MAJOR, VERSION_MINOR);
 #endif
                 return EXIT_SUCCESS;
             default:
                 return EXIT_FAILURE;
         }
     }
     if (optind != argc-1) {
         printhelp();
         return EXIT_FAILURE;
     } else {
         /* Open output file */
         settings.infilename = argv[optind];
         FILE *fout;
         if (settings.outfilename) {
             fout = fopen(settings.outfilename, "w");
             if (!fout) {
                 perror("Error opening output file");
                 return EXIT_FAILURE;
             }
         } else {
             fout = stdout;
         }
         /* Prepend header file */
         if (appendfile(settings.headerfile, fout,
                 "Error opening header file")) {
             return EXIT_FAILURE;
         }
         /* Process input file */
         FILE *inputfile = fopen(settings.infilename, "r");
         if (inputfile) {
             CxBuffer fbuf;
             cxBufferInit(&fbuf, NULL, 4096, NULL, CX_BUFFER_AUTO_EXTEND);
             cx_stream_copy(inputfile, &fbuf, (cx_read_func) fread,
                            (cx_write_func) cxBufferWrite);
             fclose(inputfile);
             c2html_bformat(
                     fbuf.space, fbuf.size,
                     fout, (cx_write_func ) fwrite, hltr,
                     settings.showlinenumbers
             );
             cxBufferDestroy(&fbuf);
         } else {
             perror("Error opening input file");
             if (fout != stdout) {
                 fclose(fout);
             }
             return EXIT_FAILURE;
         }
         /* Append footer file */
         if (appendfile(settings.footerfile, fout,
                 "Error opening footer file")) {
             return EXIT_FAILURE;
         }
         return EXIT_SUCCESS;
     }
 }

Mercurial > hg > c2html / annotate

src/frontend.c@5da2cb5aea6b (annotated)

src/frontend.c