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169 lines
2.9 KiB
169 lines
2.9 KiB
/* markdown: a C implementation of John Gruber's Markdown markup language.
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*
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* Copyright (C) 2007 David L Parsons.
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* The redistribution terms are provided in the COPYRIGHT file that must
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* be distributed with this source code.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <time.h>
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#include <ctype.h>
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#include "config.h"
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#include "cstring.h"
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#include "markdown.h"
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#include "amalloc.h"
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/* free a (single) line
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*/
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void
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___mkd_freeLine(Line *ptr)
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{
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DELETE(ptr->text);
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free(ptr);
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}
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/* free a list of lines
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*/
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void
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___mkd_freeLines(Line *p)
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{
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if (p->next)
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___mkd_freeLines(p->next);
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___mkd_freeLine(p);
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}
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/* bye bye paragraph.
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*/
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void
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___mkd_freeParagraph(Paragraph *p)
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{
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if (p->next)
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___mkd_freeParagraph(p->next);
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if (p->down)
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___mkd_freeParagraph(p->down);
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if (p->text)
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___mkd_freeLines(p->text);
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if (p->ident)
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free(p->ident);
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free(p);
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}
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/* bye bye footnotes.
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*/
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void
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___mkd_freefootnotes(MMIOT *f)
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{
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int i;
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if ( f->footnotes ) {
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for (i=0; i < S(*f->footnotes); i++) {
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DELETE(T(*f->footnotes)[i].tag);
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DELETE(T(*f->footnotes)[i].link);
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DELETE(T(*f->footnotes)[i].title);
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}
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DELETE(*f->footnotes);
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free(f->footnotes);
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}
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}
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/* initialize a new MMIOT
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*/
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void
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___mkd_initmmiot(MMIOT *f, void *footnotes)
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{
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if ( f ) {
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memset(f, 0, sizeof *f);
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CREATE(f->in);
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CREATE(f->out);
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CREATE(f->Q);
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if ( footnotes )
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f->footnotes = footnotes;
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else {
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f->footnotes = malloc(sizeof f->footnotes[0]);
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CREATE(*f->footnotes);
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}
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}
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}
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/* free the contents of a MMIOT, but leave the object alone.
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*/
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void
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___mkd_freemmiot(MMIOT *f, void *footnotes)
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{
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if ( f ) {
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DELETE(f->in);
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DELETE(f->out);
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DELETE(f->Q);
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if ( f->footnotes != footnotes )
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___mkd_freefootnotes(f);
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memset(f, 0, sizeof *f);
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}
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}
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/* free lines up to an barrier.
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*/
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void
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___mkd_freeLineRange(Line *anchor, Line *stop)
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{
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Line *r = anchor->next;
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if ( r != stop ) {
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while ( r && (r->next != stop) )
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r = r->next;
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if ( r ) r->next = 0;
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___mkd_freeLines(anchor->next);
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}
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anchor->next = 0;
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}
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/* clean up everything allocated in __mkd_compile()
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*/
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void
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mkd_cleanup(Document *doc)
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{
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if ( doc ) {
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if ( doc->ctx ) {
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___mkd_freemmiot(doc->ctx, 0);
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free(doc->ctx);
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}
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if ( doc->code) ___mkd_freeParagraph(doc->code);
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if ( doc->headers ) ___mkd_freeLines(doc->headers);
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if ( T(doc->content) ) ___mkd_freeLines(T(doc->content));
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memset(doc, 0, sizeof doc[0]);
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free(doc);
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}
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}
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/* write output in XML format
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*/
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void
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___mkd_xml(char *p, int size, FILE *out)
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{
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char c;
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while ( size-- > 0 ) {
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if ( !isascii(c = *p++) )
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continue;
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switch (c) {
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case '<': fputs("<", out); break;
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case '>': fputs(">", out); break;
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case '&': fputs("&", out); break;
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case '"': fputs(""", out); break;
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case '\'':fputs("'", out); break;
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default: putc(c,out); break;
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}
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}
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}
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