moving markdown.c to cmarkdown.c
adding header a bunch of other stuff. --HG-- rename : markdown.c => cmarkdown.c
This commit is contained in:
gottox@rootkit.lan
parent
10a52a6dbb
commit
689de59fd2
1 changed files with 88 additions and 56 deletions
|
|
@ -1,56 +1,85 @@
|
|||
/* cmarkdown
|
||||
* Copyright (C) <2007> Enno boland <g@s01.de>
|
||||
*
|
||||
* cmarkdown free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Library General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2 of the License, or any later version.
|
||||
*
|
||||
* This library is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Library General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Library General Public
|
||||
* License along with this library; if not, write to the
|
||||
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
* Boston, MA 02111-1307, USA.
|
||||
*
|
||||
* To compile type
|
||||
* gcc -DVERSION=\"`date +%F`\" -o cmarkdown cmarkdown.c
|
||||
*/
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <stdio.h>
|
||||
#include <stdarg.h>
|
||||
#include <string.h>
|
||||
|
||||
struct Tag {
|
||||
char *search;
|
||||
int hasChilds;
|
||||
char *prefix, *suffix;
|
||||
};
|
||||
typedef unsigned int (*Parser)(const char *, const char *);
|
||||
|
||||
#define BUFFERSIZE 1024
|
||||
#define ERRMALLOC eprint("malloc failed\n");
|
||||
#define LENGTH(x) sizeof(x)/sizeof(x[0])
|
||||
|
||||
typedef unsigned int (*Parser)(const char *, const char *);
|
||||
struct Tag {
|
||||
char *search;
|
||||
int process;
|
||||
char *tag;
|
||||
};
|
||||
|
||||
void eprint(const char *errstr, ...); /* Prints error and exits */
|
||||
void process(const char *begin, const char *end);
|
||||
/* Processes range between begin and end with parser (NULL = all parsers) */
|
||||
unsigned int doreplace(const char *begin, const char *end);
|
||||
/* Parser for simple replaces */
|
||||
unsigned int dolineprefix(const char *begin, const char *end);
|
||||
/* Parser for line prefix tags */
|
||||
unsigned int dosurround(const char *begin, const char *end);
|
||||
/* Parser for surrounding tags */
|
||||
unsigned int dounderline(const char *begin, const char *end);
|
||||
/* Parser for underline tags */
|
||||
unsigned int dolink(const char *begin, const char *end);
|
||||
/* Parser for links and images */
|
||||
Parser parsers[] = { dounderline, dolineprefix, dosurround, dolink, doreplace };
|
||||
/* list of parsers */
|
||||
|
||||
FILE *source;
|
||||
unsigned int bsize = 0;
|
||||
struct Tag lineprefix[] = {
|
||||
{ " ", 0, "<pre>", "</pre>" },
|
||||
{ "\t", 0, "<pre>", "</pre>" },
|
||||
{ "> ", 1, "<blockquote>", "</blockquote>" },
|
||||
{ " ", 0, "pre" },
|
||||
{ "\t", 0, "pre" },
|
||||
{ "> ", 1, "blockquote" },
|
||||
};
|
||||
|
||||
struct Tag underline[] = {
|
||||
{ "=", 1, "<h1>", "</h1>" },
|
||||
{ "-", 1, "<h2>", "</h2>" },
|
||||
{ "=", 1, "h1" },
|
||||
{ "-", 1, "h2" },
|
||||
};
|
||||
|
||||
struct Tag surround[] = {
|
||||
{ "_", 1, "<b>", "</b>" },
|
||||
{ "*", 1, "<i>", "</i>" },
|
||||
{ "``", 0, "code" },
|
||||
{ "`", 0, "code" },
|
||||
{ "__", 1, "strong" },
|
||||
{ "**", 1, "strong" },
|
||||
{ "*", 1, "em" },
|
||||
{ "_", 1, "em" },
|
||||
};
|
||||
|
||||
char * replace[][2] = {
|
||||
{ "\n---\n", "\n<hr />\n" },
|
||||
{ "\n\n", "\n<br />\n" },
|
||||
{ "\n\n", "<br />\n<br />\n" },
|
||||
{ "<", "<" },
|
||||
{ ">", ">" },
|
||||
{ "&", "&" },
|
||||
{ "\"", """ },
|
||||
};
|
||||
|
||||
|
||||
void eprint(const char *errstr, ...);
|
||||
void process(const char *begin, const char *end, Parser parser);
|
||||
unsigned int doreplace(const char *begin, const char *end);
|
||||
unsigned int dolineprefix(const char *begin, const char *end);
|
||||
unsigned int dosurround(const char *begin, const char *end);
|
||||
unsigned int dounderline(const char *begin, const char *end);
|
||||
unsigned int dolink(const char *begin, const char *end);
|
||||
Parser parsers[] = { dounderline, dolineprefix, dosurround, dolink, doreplace };
|
||||
|
||||
void
|
||||
eprint(const char *errstr, ...) {
|
||||
va_list ap;
|
||||
|
|
@ -83,16 +112,16 @@ dolink(const char *begin, const char *end) {
|
|||
|
||||
if(img) {
|
||||
fputs("<img src=\"",stdout);
|
||||
process(link,link+linklen, doreplace);
|
||||
process(link,link+linklen);
|
||||
fputs("\" alt=\"",stdout);
|
||||
process(desc,desc+desclen, NULL);
|
||||
process(desc,desc+desclen);
|
||||
fputs("\" />",stdout);
|
||||
}
|
||||
else {
|
||||
fputs("<a href=\"",stdout);
|
||||
process(link,link+linklen, doreplace);
|
||||
process(link,link+linklen);
|
||||
fputs("\">",stdout);
|
||||
process(desc,desc+desclen, NULL);
|
||||
process(desc,desc+desclen);
|
||||
fputs("</a>",stdout);
|
||||
}
|
||||
return p + 1 - begin;
|
||||
|
|
@ -109,12 +138,18 @@ dosurround(const char *begin, const char *end) {
|
|||
continue;
|
||||
for(ps = surround[i].search; *ps == '\n'; ps++);
|
||||
l = strlen(ps);
|
||||
p = strstr(begin + strlen(surround[i].search), ps);
|
||||
p = begin + strlen(surround[i].search) - 1;
|
||||
do {
|
||||
p = strstr(p+1, ps);
|
||||
} while(p && p[-1] == '\\');
|
||||
if(!p || p > end)
|
||||
continue;
|
||||
fputs(surround[i].prefix,stdout);
|
||||
fwrite(begin + strlen(surround[i].search), sizeof(char), p - begin - l, stdout);
|
||||
fputs(surround[i].suffix,stdout);
|
||||
printf("<%s>",surround[i].tag);
|
||||
if(surround[i].process)
|
||||
process(begin + strlen(surround[i].search), p);
|
||||
else
|
||||
fwrite(begin + strlen(surround[i].search), p - begin - l, sizeof(char), stdout);
|
||||
printf("</%s>",surround[i].tag);
|
||||
return p - begin + l;
|
||||
}
|
||||
return 0;
|
||||
|
|
@ -152,7 +187,7 @@ dolineprefix(const char *begin, const char *end) {
|
|||
|
||||
if(!(buffer = malloc(end - begin+1)))
|
||||
ERRMALLOC;
|
||||
fputs(lineprefix[i].prefix, stdout);
|
||||
printf("<%s>",surround[i].tag);
|
||||
for(p = begin, j = 0; p != end; p++, j++) {
|
||||
buffer[j] = *p;
|
||||
if(*p == '\n') {
|
||||
|
|
@ -161,11 +196,11 @@ dolineprefix(const char *begin, const char *end) {
|
|||
p += l;
|
||||
}
|
||||
}
|
||||
if(lineprefix[i].hasChilds)
|
||||
process(buffer,buffer+strlen(buffer), NULL);
|
||||
if(lineprefix[i].process)
|
||||
process(buffer,buffer+strlen(buffer));
|
||||
else
|
||||
fputs(buffer, stdout);
|
||||
fputs(lineprefix[i].suffix, stdout);
|
||||
fwrite(buffer,strlen(buffer), sizeof(char),stdout);
|
||||
printf("</%s>",surround[i].tag);
|
||||
free(buffer);
|
||||
return p - begin;
|
||||
}
|
||||
|
|
@ -180,39 +215,35 @@ dounderline(const char *begin, const char *end) {
|
|||
if(*begin != '\n' && *begin != '\0')
|
||||
return 0;
|
||||
for(p = begin+1,l = 0; p[l] != '\n' && p[l] && p+l != end; l++);
|
||||
p += l+1;
|
||||
p += l + 1;
|
||||
if(l == 0)
|
||||
return 0;
|
||||
for(i = 0; i < LENGTH(underline); i++) {
|
||||
for(j = 0; p[j] != '\n' && p[j] == underline[i].search[0] && p+j != end; j++);
|
||||
if(j >= l) {
|
||||
putchar('\n');
|
||||
fputs(underline[i].prefix,stdout);
|
||||
if(underline[i].hasChilds)
|
||||
process(begin + 1, begin + l + 1, NULL);
|
||||
printf("<%s>",underline[i].tag);
|
||||
if(underline[i].process)
|
||||
process(begin+1, begin + l + 1);
|
||||
else
|
||||
fwrite(begin + 1, l, sizeof(char), stdout);
|
||||
fputs(underline[i].suffix,stdout);
|
||||
fwrite(begin+1,l,sizeof(char),stdout);
|
||||
printf("</%s>",underline[i].tag);
|
||||
return j + l + 2;
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
process(const char *begin, const char *end, Parser parser) {
|
||||
process(const char *begin, const char *end) {
|
||||
const char *p;
|
||||
int affected;
|
||||
unsigned int i;
|
||||
|
||||
for(p = begin; *p && p != end;) {
|
||||
affected = 0;
|
||||
if(parser)
|
||||
affected = parser(p, end);
|
||||
else
|
||||
for(i = 0; i < LENGTH(parsers) && affected == 0; i++)
|
||||
affected = parsers[i](p, end);
|
||||
for(i = 0; i < LENGTH(parsers) && affected == 0; i++)
|
||||
affected = parsers[i](p, end);
|
||||
if(affected == 0) {
|
||||
putchar(*p);
|
||||
p++;
|
||||
|
|
@ -231,12 +262,13 @@ main(int argc, char *argv[]) {
|
|||
if(argc > 1 && strcmp("-v", argv[1]) == 0)
|
||||
eprint("markdown in C "VERSION" (C) Enno Boland\n");
|
||||
else if(argc > 1 && strcmp("-h", argv[1]) == 0)
|
||||
eprint("Usage markdown [file]\n");
|
||||
eprint("Usage %s [file]\n",argv[0]);
|
||||
else if (argc > 1 && strcmp("-", argv[1]) != 0 && !(source = fopen(argv[1],"r")))
|
||||
eprint("Cannot open file `%s`\n",argv[1]);
|
||||
if(!(buffer = malloc(BUFFERSIZE)))
|
||||
ERRMALLOC;
|
||||
bsize = BUFFERSIZE;
|
||||
/* needed to properly process first line */
|
||||
strcpy(buffer,"\n");
|
||||
|
||||
p = buffer+strlen(buffer);
|
||||
|
|
@ -250,6 +282,6 @@ main(int argc, char *argv[]) {
|
|||
}
|
||||
}
|
||||
|
||||
process(buffer,buffer+strlen(buffer), NULL);
|
||||
process(buffer,buffer+strlen(buffer));
|
||||
free(buffer);
|
||||
}
|
||||
Loading…
Add table
Reference in a new issue