c2html: src/c2html.c@bf54085ce341 (annotated)

src/c2html.c@bf54085ce341 (annotated)

src/c2html.c

Wed, 31 Aug 2016 14:41:56 +0200

author: Mike Becker <universe@uap-core.de>
date: Wed, 31 Aug 2016 14:41:56 +0200
changeset 55: bf54085ce341
parent 53: 5e47a26a16f0
child 57: eba880c1705c
permissions: -rw-r--r--

adds appropriate public API

 /*
  * 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 "c2html.h"
 #include "ucx/list.h"
 #include "ucx/utils.h"
 #define try_write(wfnc, str, n, buf, written, maxlen) \
     {                                              \
         size_t m = maxlen-written;                    \
         written += wfnc(str, 1, n > m ? m : n, buf);  \
     }
 static size_t formatlines(c2html_highlighter_func highlighter, UcxList *in,
         void *outbuf, write_func wfnc, size_t maxlen, int showlineno) {
     /* total written bytes */
     size_t written = 0;
     /* compute width of line numbering */
     int lnw = 0;
     if (showlineno) {
         size_t lines = ucx_list_size(in);
         for (size_t p = 1; p < lines ; p*=10) lnw++;
     }
     /* start monospace formatting */
     try_write(wfnc, "<pre>\n", 6, outbuf, written, maxlen);
     /* process lines */
     size_t lineno = 0;
     c2html_highlighter_data* hd = malloc(sizeof(c2html_highlighter_data));
     hd->multiline_comment = 0;
     hd->primary_buffer = ucx_buffer_new(NULL, 256, UCX_BUFFER_AUTOEXTEND);
     hd->secondary_buffer = ucx_buffer_new(NULL, 32, UCX_BUFFER_AUTOEXTEND);
     UcxBuffer *line = ucx_buffer_new(NULL, 1024, UCX_BUFFER_AUTOEXTEND);
     UCX_FOREACH(sourceline, in) {
         /* increase line number and clean line buffer */
         lineno++;
         ucx_buffer_clear(line);
         /* write line number */
         if (showlineno) {
             ucx_bprintf(line, "<span class=\"c2html-lineno\">"
                     "<a name=\"l%d\" href=\"#l%d\">%*d </a></span> ",
                     lineno, lineno, lnw, lineno);
         }
         /* process code line */
         highlighter(sourceline->data, line, hd);
         /* write code line */
         try_write(wfnc, line->space, line->size, outbuf, written, maxlen);
         if (written == maxlen) break;
     }
     /* end monospace formatting */
     try_write(wfnc, "</pre>\n", 7, outbuf, written, maxlen);
     /* cleanup and return */
     ucx_buffer_free(hd->primary_buffer);
     ucx_buffer_free(hd->secondary_buffer);
     free(hd);
     ucx_buffer_free(line);
     return written;
 }
 size_t c2html_formatn(void* inputbuffer, read_func rfnc,
         char* ibuf, size_t ibuflen, void* outputbuffer, write_func wfnc,
         size_t maxlen, c2html_highlighter_func hltr, int showln) {
     UcxBuffer *content = ucx_buffer_new(NULL, ibuflen*2, UCX_BUFFER_AUTOEXTEND);
     ucx_stream_copy(inputbuffer, content, rfnc, (write_func) ucx_buffer_write,
             ibuf, ibuflen, (size_t)-1);
     UcxList *lines = ucx_list_append(NULL, content->space);
     for (size_t i = 1 ; i < content->size ; i++) {
         if (content->space[i] == '\r') {
             content->space[i] = '\n'; i++;
         }
         if (content->space[i] == '\n' && i+1 < content->size) {
             ucx_list_append(lines, content->space+i+1);
         }
     }
     size_t n = formatlines(hltr, lines, outputbuffer, wfnc, maxlen, showln);
     ucx_buffer_free(content);
     return n;
 }
 size_t c2html_format(void* inputbuffer, read_func rfnc,
         char* ibuf, size_t ibuflen, void* outputbuffer, write_func wfnc,
         c2html_highlighter_func hltr, int showln) {
     return c2html_formatn(inputbuffer, rfnc, ibuf, ibuflen,
             outputbuffer, wfnc, (size_t)-1, hltr, showln);
 }
 size_t c2html_format_file(FILE* inputfile, char *ibuf, size_t ibuflen,
         void* outputbuffer, write_func wfnc,
         c2html_highlighter_func hltr, int showln) {
     return c2html_format(inputfile, (read_func) fread, ibuf, ibuflen,
             outputbuffer, wfnc, hltr, showln);
 }
 void c2html_fformat_file(FILE *inputfile, char *ibuf, size_t ibuflen,
         FILE* outputfile, c2html_highlighter_func hltr, int showln) {
     c2html_format(inputfile, (read_func) fread, ibuf, ibuflen,
             outputfile, (write_func) fwrite, hltr, showln);
 }

Mercurial > hg > c2html / annotate

src/c2html.c@bf54085ce341 (annotated)

src/c2html.c