1/* html.c: helper functions for html output
  2 *
  3 * Copyright (C) 2006 Lars Hjemli
  4 *
  5 * Licensed under GNU General Public License v2
  6 *   (see COPYING for full license text)
  7 */
  8
  9#include "cgit.h"
 10
 11char *fmt(const char *format, ...)
 12{
 13	static char buf[8][1024];
 14	static int bufidx;
 15	int len;
 16	va_list args;
 17
 18	bufidx++;
 19	bufidx &= 7;
 20
 21	va_start(args, format);
 22	len = vsnprintf(buf[bufidx], sizeof(buf[bufidx]), format, args);
 23	va_end(args);
 24	if (len>sizeof(buf[bufidx]))
 25		die("[html.c] string truncated: %s", format);
 26	return buf[bufidx];
 27}
 28
 29void html(const char *txt)
 30{
 31	write(htmlfd, txt, strlen(txt));
 32}
 33
 34void htmlf(const char *format, ...)
 35{
 36	static char buf[65536];
 37	va_list args;
 38
 39	va_start(args, format);
 40	vsnprintf(buf, sizeof(buf), format, args);
 41	va_end(args);
 42	html(buf);
 43}
 44
 45void html_txt(char *txt)
 46{
 47	char *t = txt;
 48	while(*t){
 49		int c = *t;
 50		if (c=='<' || c=='>' || c=='&') {
 51			*t = '\0';
 52			html(txt);
 53			*t = c;
 54			if (c=='>')
 55				html("&gt;");
 56			else if (c=='<')
 57				html("&lt;");
 58			else if (c=='&')
 59				html("&amp;");
 60			txt = t+1;
 61		}
 62		t++;
 63	}
 64	if (t!=txt)
 65		html(txt);
 66}
 67
 68
 69void html_attr(char *txt)
 70{
 71	char *t = txt;
 72	while(*t){
 73		int c = *t;
 74		if (c=='<' || c=='>' || c=='\'') {
 75			*t = '\0';
 76			html(txt);
 77			*t = c;
 78			if (c=='>')
 79				html("&gt;");
 80			else if (c=='<')
 81				html("&lt;");
 82			else if (c=='\'')
 83				html("&quote;");
 84			txt = t+1;
 85		}
 86		t++;
 87	}
 88	if (t!=txt)
 89		html(txt);
 90}
 91
 92void html_link_open(char *url, char *title, char *class)
 93{
 94	html("<a href='");
 95	html_attr(url);
 96	if (title) {
 97		html("' title='");
 98		html_attr(title);
 99	}
100	if (class) {
101		html("' class='");
102		html_attr(class);
103	}
104	html("'>");
105}
106
107void html_link_close(void)
108{
109	html("</a>");
110}