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/* markdown: a C implementation of John Gruber's Markdown markup language.
*
* Copyright (C) 2007 David L Parsons.
* The redistribution terms are provided in the COPYRIGHT file that must
* be distributed with this source code.
*/
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include <time.h>
#include <ctype.h>
#include "config.h"
#include "cstring.h"
#include "markdown.h"
#include "amalloc.h"
/* return the xml version of a character
*/
static char *
mkd_xmlchar(unsigned char c)
{
switch (c) {
case '<': return "<";
case '>': return ">";
case '&': return "&";
case '"': return """;
case '\'': return "'";
default: if ( isascii(c) || (c & 0x80) )
return 0;
return "";
}
}
/* write output in XML format
*/
int
mkd_generatexml(char *p, int size, FILE *out)
{
unsigned char c;
char *entity;
while ( size-- > 0 ) {
c = *p++;
if ( entity = mkd_xmlchar(c) )
DO_OR_DIE( fputs(entity, out) );
else
DO_OR_DIE( fputc(c, out) );
}
return 0;
}
/* build a xml'ed version of a string
*/
int
mkd_xml(char *p, int size, char **res)
{
unsigned char c;
char *entity;
Cstring f;
CREATE(f);
RESERVE(f, 100);
while ( size-- > 0 ) {
c = *p++;
if ( entity = mkd_xmlchar(c) )
Cswrite(&f, entity, strlen(entity));
else
Csputc(c, &f);
}
/* null terminate, strdup() into a free()able memory block,
* and return the size of everything except the null terminator
*/
EXPAND(f) = 0;
*res = strdup(T(f));
return S(f)-1;
}
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