commit 689de59fd28cf425d3b649cfcc68d01619d88ff5
parent 10a52a6dbb76052e74552b5800c9dd7327767284
Author: gottox@rootkit.lan <gottox@rootkit.lan>
Date: Mon, 10 Dec 2007 04:08:02 +0100
moving markdown.c to cmarkdown.c
adding header
a bunch of other stuff.
--HG--
rename : markdown.c => cmarkdown.c
Diffstat:
| A | cmarkdown.c | | | 287 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| D | markdown.c | | | 255 | ------------------------------------------------------------------------------- |
2 files changed, 287 insertions(+), 255 deletions(-)
diff --git a/cmarkdown.c b/cmarkdown.c
@@ -0,0 +1,287 @@
+/* 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>
+
+#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" },
+ { "\t", 0, "pre" },
+ { "> ", 1, "blockquote" },
+};
+struct Tag underline[] = {
+ { "=", 1, "h1" },
+ { "-", 1, "h2" },
+};
+struct Tag surround[] = {
+ { "``", 0, "code" },
+ { "`", 0, "code" },
+ { "__", 1, "strong" },
+ { "**", 1, "strong" },
+ { "*", 1, "em" },
+ { "_", 1, "em" },
+};
+char * replace[][2] = {
+ { "\n---\n", "\n<hr />\n" },
+ { "\n\n", "<br />\n<br />\n" },
+ { "<", "<" },
+ { ">", ">" },
+ { "&", "&" },
+ { "\"", """ },
+};
+
+void
+eprint(const char *errstr, ...) {
+ va_list ap;
+
+ va_start(ap, errstr);
+ vfprintf(stderr, errstr, ap);
+ va_end(ap);
+ exit(EXIT_FAILURE);
+}
+
+unsigned int
+dolink(const char *begin, const char *end) {
+ int img;
+ const char *desc, *link, *p;
+ unsigned int desclen, linklen;
+
+ if(*begin != '[' && strncmp(begin,"![",2) != 0)
+ return 0;
+ img = 1;
+ if(*begin == '[')
+ img = 0;
+ desc = begin + 1 + img;
+ if(!(p = strstr(desc, "](")) || p > end)
+ return 0;
+ desclen = p - desc;
+ link = p + 2;
+ if(!(p = strstr(link, ")")) || p > end)
+ return 0;
+ linklen = p - link;
+
+ if(img) {
+ fputs("<img src=\"",stdout);
+ process(link,link+linklen);
+ fputs("\" alt=\"",stdout);
+ process(desc,desc+desclen);
+ fputs("\" />",stdout);
+ }
+ else {
+ fputs("<a href=\"",stdout);
+ process(link,link+linklen);
+ fputs("\">",stdout);
+ process(desc,desc+desclen);
+ fputs("</a>",stdout);
+ }
+ return p + 1 - begin;
+}
+
+unsigned int
+dosurround(const char *begin, const char *end) {
+ unsigned int i,l;
+ const char *p,*ps;
+
+ for(i = 0; i < LENGTH(surround); i++) {
+ l = strlen(surround[i].search);
+ if(end - begin < l || strncmp(begin,surround[i].search,l) != 0)
+ continue;
+ for(ps = surround[i].search; *ps == '\n'; ps++);
+ l = strlen(ps);
+ p = begin + strlen(surround[i].search) - 1;
+ do {
+ p = strstr(p+1, ps);
+ } while(p && p[-1] == '\\');
+ if(!p || p > end)
+ continue;
+ 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;
+}
+unsigned int
+doreplace(const char *begin, const char *end) {
+ unsigned int i, l;
+
+ for(i = 0; i < LENGTH(replace); i++) {
+ l = strlen(replace[i][0]);
+ if(end - begin < l)
+ continue;
+ if(strncmp(replace[i][0],begin,l) == 0) {
+ fputs(replace[i][1], stdout);
+ return l;
+ }
+ }
+ return 0;
+}
+
+unsigned int
+dolineprefix(const char *begin, const char *end) {
+ unsigned int i, j, l;
+ char *buffer;
+ const char *p;
+
+ if(*begin != '\n' && *begin != '\0')
+ return 0;
+ for(i = 0; i < LENGTH(lineprefix); i++) {
+ l = strlen(lineprefix[i].search);
+ if(end - begin+1 < l)
+ continue;
+ if(strncmp(lineprefix[i].search,begin+1,l))
+ continue;
+
+ if(!(buffer = malloc(end - begin+1)))
+ ERRMALLOC;
+ printf("<%s>",surround[i].tag);
+ for(p = begin, j = 0; p != end; p++, j++) {
+ buffer[j] = *p;
+ if(*p == '\n') {
+ if(strncmp(lineprefix[i].search,p+1,l) != 0)
+ break;
+ p += l;
+ }
+ }
+ if(lineprefix[i].process)
+ process(buffer,buffer+strlen(buffer));
+ else
+ fwrite(buffer,strlen(buffer), sizeof(char),stdout);
+ printf("</%s>",surround[i].tag);
+ free(buffer);
+ return p - begin;
+ }
+ return 0;
+}
+
+unsigned int
+dounderline(const char *begin, const char *end) {
+ unsigned int i, j, l;
+ const char *p;
+
+ 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;
+ 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');
+ printf("<%s>",underline[i].tag);
+ if(underline[i].process)
+ process(begin+1, begin + l + 1);
+ else
+ 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) {
+ const char *p;
+ int affected;
+ unsigned int i;
+
+ for(p = begin; *p && p != end;) {
+ affected = 0;
+ for(i = 0; i < LENGTH(parsers) && affected == 0; i++)
+ affected = parsers[i](p, end);
+ if(affected == 0) {
+ putchar(*p);
+ p++;
+ }
+ else
+ p += affected;
+ }
+}
+
+int
+main(int argc, char *argv[]) {
+ char *p, *buffer;
+ int s;
+
+ source = stdin;
+ 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 %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);
+ while(s = fread(p, sizeof(char),BUFFERSIZE, source)) {
+ p += s;
+ *p = '\0';
+ if(BUFFERSIZE + strlen(buffer) > bsize) {
+ bsize += BUFFERSIZE;
+ if(!(buffer = realloc(buffer, bsize)))
+ ERRMALLOC;
+ }
+ }
+
+ process(buffer,buffer+strlen(buffer));
+ free(buffer);
+}
diff --git a/markdown.c b/markdown.c
@@ -1,255 +0,0 @@
-#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])
-
-FILE *source;
-unsigned int bsize = 0;
-struct Tag lineprefix[] = {
- { " ", 0, "<pre>", "</pre>" },
- { "\t", 0, "<pre>", "</pre>" },
- { "> ", 1, "<blockquote>", "</blockquote>" },
-};
-
-struct Tag underline[] = {
- { "=", 1, "<h1>", "</h1>" },
- { "-", 1, "<h2>", "</h2>" },
-};
-
-struct Tag surround[] = {
- { "_", 1, "<b>", "</b>" },
- { "*", 1, "<i>", "</i>" },
-};
-
-char * replace[][2] = {
- { "\n---\n", "\n<hr />\n" },
- { "\n\n", "\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;
-
- va_start(ap, errstr);
- vfprintf(stderr, errstr, ap);
- va_end(ap);
- exit(EXIT_FAILURE);
-}
-
-unsigned int
-dolink(const char *begin, const char *end) {
- int img;
- const char *desc, *link, *p;
- unsigned int desclen, linklen;
-
- if(*begin != '[' && strncmp(begin,"![",2) != 0)
- return 0;
- img = 1;
- if(*begin == '[')
- img = 0;
- desc = begin + 1 + img;
- if(!(p = strstr(desc, "](")) || p > end)
- return 0;
- desclen = p - desc;
- link = p + 2;
- if(!(p = strstr(link, ")")) || p > end)
- return 0;
- linklen = p - link;
-
- if(img) {
- fputs("<img src=\"",stdout);
- process(link,link+linklen, doreplace);
- fputs("\" alt=\"",stdout);
- process(desc,desc+desclen, NULL);
- fputs("\" />",stdout);
- }
- else {
- fputs("<a href=\"",stdout);
- process(link,link+linklen, doreplace);
- fputs("\">",stdout);
- process(desc,desc+desclen, NULL);
- fputs("</a>",stdout);
- }
- return p + 1 - begin;
-}
-
-unsigned int
-dosurround(const char *begin, const char *end) {
- unsigned int i,l;
- const char *p,*ps;
-
- for(i = 0; i < LENGTH(surround); i++) {
- l = strlen(surround[i].search);
- if(end - begin < l || strncmp(begin,surround[i].search,l) != 0)
- continue;
- for(ps = surround[i].search; *ps == '\n'; ps++);
- l = strlen(ps);
- p = strstr(begin + strlen(surround[i].search), ps);
- 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);
- return p - begin + l;
- }
- return 0;
-}
-unsigned int
-doreplace(const char *begin, const char *end) {
- unsigned int i, l;
-
- for(i = 0; i < LENGTH(replace); i++) {
- l = strlen(replace[i][0]);
- if(end - begin < l)
- continue;
- if(strncmp(replace[i][0],begin,l) == 0) {
- fputs(replace[i][1], stdout);
- return l;
- }
- }
- return 0;
-}
-
-unsigned int
-dolineprefix(const char *begin, const char *end) {
- unsigned int i, j, l;
- char *buffer;
- const char *p;
-
- if(*begin != '\n' && *begin != '\0')
- return 0;
- for(i = 0; i < LENGTH(lineprefix); i++) {
- l = strlen(lineprefix[i].search);
- if(end - begin+1 < l)
- continue;
- if(strncmp(lineprefix[i].search,begin+1,l))
- continue;
-
- if(!(buffer = malloc(end - begin+1)))
- ERRMALLOC;
- fputs(lineprefix[i].prefix, stdout);
- for(p = begin, j = 0; p != end; p++, j++) {
- buffer[j] = *p;
- if(*p == '\n') {
- if(strncmp(lineprefix[i].search,p+1,l) != 0)
- break;
- p += l;
- }
- }
- if(lineprefix[i].hasChilds)
- process(buffer,buffer+strlen(buffer), NULL);
- else
- fputs(buffer, stdout);
- fputs(lineprefix[i].suffix, stdout);
- free(buffer);
- return p - begin;
- }
- return 0;
-}
-
-unsigned int
-dounderline(const char *begin, const char *end) {
- unsigned int i, j, l;
- const char *p;
-
- 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;
- 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);
- else
- fwrite(begin + 1, l, sizeof(char), stdout);
- fputs(underline[i].suffix,stdout);
- return j + l + 2;
- }
- }
- return 0;
-}
-
-
-void
-process(const char *begin, const char *end, Parser parser) {
- 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);
- if(affected == 0) {
- putchar(*p);
- p++;
- }
- else
- p += affected;
- }
-}
-
-int
-main(int argc, char *argv[]) {
- char *p, *buffer;
- int s;
-
- source = stdin;
- 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");
- 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;
- strcpy(buffer,"\n");
-
- p = buffer+strlen(buffer);
- while(s = fread(p, sizeof(char),BUFFERSIZE, source)) {
- p += s;
- *p = '\0';
- if(BUFFERSIZE + strlen(buffer) > bsize) {
- bsize += BUFFERSIZE;
- if(!(buffer = realloc(buffer, bsize)))
- ERRMALLOC;
- }
- }
-
- process(buffer,buffer+strlen(buffer), NULL);
- free(buffer);
-}
