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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"
/* free a (single) line
*/
void
___mkd_freeLine(Line *ptr)
{
DELETE(ptr->text);
free(ptr);
}
/* free a list of lines
*/
void
___mkd_freeLines(Line *p)
{
if (p->next)
___mkd_freeLines(p->next);
___mkd_freeLine(p);
}
/* bye bye paragraph.
*/
void
___mkd_freeParagraph(Paragraph *p)
{
if (p->next)
___mkd_freeParagraph(p->next);
if (p->down)
___mkd_freeParagraph(p->down);
if (p->text)
___mkd_freeLines(p->text);
if (p->ident)
free(p->ident);
free(p);
}
/* bye bye footnote.
*/
void
___mkd_freefootnote(Footnote *f)
{
DELETE(f->tag);
DELETE(f->link);
DELETE(f->title);
}
/* bye bye footnotes.
*/
void
___mkd_freefootnotes(MMIOT *f)
{
int i;
if ( f->footnotes ) {
for (i=0; i < S(*f->footnotes); i++)
___mkd_freefootnote( &T(*f->footnotes)[i] );
DELETE(*f->footnotes);
free(f->footnotes);
}
}
/* initialize a new MMIOT
*/
void
___mkd_initmmiot(MMIOT *f, void *footnotes)
{
if ( f ) {
memset(f, 0, sizeof *f);
CREATE(f->in);
CREATE(f->out);
CREATE(f->Q);
if ( footnotes )
f->footnotes = footnotes;
else {
f->footnotes = malloc(sizeof f->footnotes[0]);
CREATE(*f->footnotes);
}
}
}
/* free the contents of a MMIOT, but leave the object alone.
*/
void
___mkd_freemmiot(MMIOT *f, void *footnotes)
{
if ( f ) {
DELETE(f->in);
DELETE(f->out);
DELETE(f->Q);
if ( f->footnotes != footnotes )
___mkd_freefootnotes(f);
memset(f, 0, sizeof *f);
}
}
/* free lines up to an barrier.
*/
void
___mkd_freeLineRange(Line *anchor, Line *stop)
{
Line *r = anchor->next;
if ( r != stop ) {
while ( r && (r->next != stop) )
r = r->next;
if ( r ) r->next = 0;
___mkd_freeLines(anchor->next);
}
anchor->next = 0;
}
/* clean up everything allocated in __mkd_compile()
*/
void
mkd_cleanup(Document *doc)
{
if ( doc && (doc->magic == VALID_DOCUMENT) ) {
if ( doc->ctx ) {
___mkd_freemmiot(doc->ctx, 0);
free(doc->ctx);
}
if ( doc->code) ___mkd_freeParagraph(doc->code);
if ( doc->title) ___mkd_freeLine(doc->title);
if ( doc->author) ___mkd_freeLine(doc->author);
if ( doc->date) ___mkd_freeLine(doc->date);
if ( T(doc->content) ) ___mkd_freeLines(T(doc->content));
memset(doc, 0, sizeof doc[0]);
free(doc);
}
}
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