universe@23: /*
universe@23:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
universe@23:  *
universe@35:  * Copyright 2016 Mike Becker. All rights reserved.
universe@23:  *
universe@23:  * Redistribution and use in source and binary forms, with or without
universe@23:  * modification, are permitted provided that the following conditions are met:
universe@23:  *
universe@23:  *   1. Redistributions of source code must retain the above copyright
universe@23:  *      notice, this list of conditions and the following disclaimer.
universe@23:  *
universe@23:  *   2. Redistributions in binary form must reproduce the above copyright
universe@23:  *      notice, this list of conditions and the following disclaimer in the
universe@23:  *      documentation and/or other materials provided with the distribution.
universe@23:  *
universe@23:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
universe@23:  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
universe@23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
universe@23:  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
universe@23:  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
universe@23:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
universe@23:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
universe@23:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
universe@23:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
universe@23:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
universe@23:  * POSSIBILITY OF SUCH DAMAGE.
universe@23:  *
universe@23:  */
universe@52: 
universe@22: #include "c2html.h"
universe@1: 
universe@66: #include <cx/array_list.h>
universe@66: #include <cx/printf.h>
universe@70: #include <string.h>
universe@1: 
universe@66: size_t c2html_format(
universe@66:         CxList const *lines,
universe@66:         void *outbuf,
universe@66:         cx_write_func wfnc,
universe@66:         c2html_highlighter_func highlighter,
universe@66:         int showln
universe@66: ) {
universe@66:     /* total written bytes */
universe@66:     size_t written = 0;
universe@66: 
universe@66:     /* compute width of line numbering */
universe@66:     int lnw = 0;
universe@66:     if (showln) {
universe@66:         size_t no_lines = cxListSize(lines);
universe@66:         for (size_t p = 1; p < no_lines; p *= 10) lnw++;
universe@53:     }
universe@53: 
universe@66:     /* start code formatting */
universe@66:     written += wfnc("<div class=\"c2html-code\">\n", 1, 26, outbuf);
universe@39: 
universe@44:     /* process lines */
universe@66:     int lineno = 0;
universe@66:     c2html_highlighter_data hd;
universe@66:     hd.multiline_comment = 0;
universe@66:     cxBufferInit(&hd.primary_buffer, NULL, 256, NULL, CX_BUFFER_AUTO_EXTEND);
universe@66:     cxBufferInit(&hd.secondary_buffer, NULL, 32, NULL, CX_BUFFER_AUTO_EXTEND);
universe@66:     CxBuffer out_line;
universe@66:     cxBufferInit(&out_line, NULL, 128, NULL, CX_BUFFER_AUTO_EXTEND);
universe@66: 
universe@66:     CxIterator in_lines = cxListIterator(lines);
universe@66:     cx_foreach(char*, in_line, in_lines) {
universe@44:         /* increase line number and clean line buffer */
universe@39:         lineno++;
universe@66:         cxBufferClear(&out_line);
universe@66: 
universe@44:         /* write line number */
universe@66:         if (showln) {
universe@66:             cx_bprintf(&out_line, "<a class=\"c2html-lineno\" name=\"l%d\" "
universe@66:                                   "href=\"#l%d\">%*d </a>",
universe@66:                        lineno, lineno, lnw, lineno);
universe@44:         }
universe@66: 
universe@45:         /* process code line */
universe@66:         highlighter(in_line, &out_line, &hd);
universe@66: 
universe@50:         /* write code line */
universe@66:         written += wfnc(out_line.space, 1, out_line.size, outbuf);
olaf@24:     }
universe@66: 
universe@66:     /* end code formatting */
universe@66:     written += wfnc("</div>\n", 1, 7, outbuf);
universe@66: 
universe@44:     /* cleanup and return */
universe@66:     cxBufferDestroy(&hd.primary_buffer);
universe@66:     cxBufferDestroy(&hd.secondary_buffer);
universe@66:     cxBufferDestroy(&out_line);
universe@66: 
universe@55:     return written;
olaf@24: }
olaf@24: 
universe@70: size_t c2html_textformat(
universe@66:         char const *inputbuffer,
universe@66:         void *outbuf,
universe@66:         cx_write_func wfnc,
universe@66:         c2html_highlighter_func highlighter,
universe@66:         int showln
universe@66: ) {
universe@66:     /* a rough estimate for the number of lines */
universe@70:     size_t inputbuflen = strlen(inputbuffer);
universe@66:     size_t est_cap = 16 + inputbuflen / 40;
universe@42: 
universe@66:     /* create the line pointer array */
universe@66:     CxList *lines = cxArrayListCreateSimple(CX_STORE_POINTERS, est_cap);
universe@66:     cxListAdd(lines, inputbuffer);
universe@71:     for (size_t i = 0; i < inputbuflen; i++) {
universe@66:         if (inputbuffer[i] == '\n' && i + 1 < inputbuflen) {
universe@66:             cxListAdd(lines, inputbuffer + i + 1);
universe@57:         }
universe@57:     }
universe@66: 
universe@66:     /* invoke the other function */
universe@66:     size_t n = c2html_format(lines, outbuf, wfnc, highlighter, showln);
universe@66: 
universe@66:     /* cleanup and return */
universe@66:     cxListDestroy(lines);
universe@57:     return n;
universe@66: }