renamed project to smu - simple markup - smu - smu - simple markup (Markdown) processor (fork, fixes + features)
(HTM) git clone git://git.codemadness.org/smu
(DIR) Log
(DIR) Files
(DIR) Refs
(DIR) README
(DIR) LICENSE
---
(DIR) commit 4f419311ff164306ae138bb363dbffa5797fbd12
(DIR) parent d5058298da1fef8596066d1822a67d6a0eaff614
(HTM) Author: gottox@rootkit.lan <gottox@rootkit.lan>
Date: Tue, 1 Jan 2008 14:52:08 +0100
renamed project to smu - simple markup
--HG--
rename : cmarkdown.1 => smu.1
rename : cmarkdown.c => smu.c
Diffstat:
M Makefile | 34 ++++++++++++++++----------------
D cmarkdown.1 | 23 -----------------------
D cmarkdown.c | 537 -------------------------------
M config.mk | 2 +-
A smu.1 | 23 +++++++++++++++++++++++
A smu.c | 537 +++++++++++++++++++++++++++++++
6 files changed, 578 insertions(+), 578 deletions(-)
---
(DIR) diff --git a/Makefile b/Makefile
@@ -1,15 +1,15 @@
-# cmarkdown
+# smu - simple markup
# (c) 2007 Enno Boland
include config.mk
-SRC = cmarkdown.c
+SRC = smu.c
OBJ = ${SRC:.c=.o}
-all: options cmarkdown
+all: options smu
options:
- @echo cmarkdown build options:
+ @echo smu build options:
@echo "CFLAGS = ${CFLAGS}"
@echo "LDFLAGS = ${LDFLAGS}"
@echo "CC = ${CC}"
@@ -20,37 +20,37 @@ options:
${OBJ}: config.mk
-cmarkdown: ${OBJ}
+smu: ${OBJ}
@echo LD $@
@${CC} -o $@ ${OBJ} ${LDFLAGS}
clean:
@echo cleaning
- @rm -f cmarkdown ${OBJ} cmarkdown-${VERSION}.tar.gz
+ @rm -f smu ${OBJ} smu-${VERSION}.tar.gz
dist: clean
@echo creating dist tarball
- @mkdir -p cmarkdown-${VERSION}
+ @mkdir -p smu-${VERSION}
@cp -R LICENSE Makefile config.mk \
- cmarkdown.1 ${SRC} cmarkdown-${VERSION}
- @tar -cf cmarkdown-${VERSION}.tar cmarkdown-${VERSION}
- @gzip cmarkdown-${VERSION}.tar
- @rm -rf cmarkdown-${VERSION}
+ smu.1 ${SRC} smu-${VERSION}
+ @tar -cf smu-${VERSION}.tar smu-${VERSION}
+ @gzip smu-${VERSION}.tar
+ @rm -rf smu-${VERSION}
install: all
@echo installing executable file to ${DESTDIR}${PREFIX}/bin
@mkdir -p ${DESTDIR}${PREFIX}/bin
- @cp -f cmarkdown ${DESTDIR}${PREFIX}/bin
- @chmod 755 ${DESTDIR}${PREFIX}/bin/cmarkdown
+ @cp -f smu ${DESTDIR}${PREFIX}/bin
+ @chmod 755 ${DESTDIR}${PREFIX}/bin/smu
@echo installing manual page to ${DESTDIR}${MANPREFIX}/man1
@mkdir -p ${DESTDIR}${MANPREFIX}/man1
- @sed "s/VERSION/${VERSION}/g" < cmarkdown.1 > ${DESTDIR}${MANPREFIX}/man1/cmarkdown.1
- @chmod 644 ${DESTDIR}${MANPREFIX}/man1/cmarkdown.1
+ @sed "s/VERSION/${VERSION}/g" < smu.1 > ${DESTDIR}${MANPREFIX}/man1/smu.1
+ @chmod 644 ${DESTDIR}${MANPREFIX}/man1/smu.1
uninstall:
@echo removing executable file from ${DESTDIR}${PREFIX}/bin
- @rm -f ${DESTDIR}${PREFIX}/bin/cmarkdown
+ @rm -f ${DESTDIR}${PREFIX}/bin/smu
@echo removing manual page from ${DESTDIR}${MANPREFIX}/man1
- @rm -f ${DESTDIR}${MANPREFIX}/man1/cmarkdown.1
+ @rm -f ${DESTDIR}${MANPREFIX}/man1/smu.1
.PHONY: all options clean dist install uninstall
(DIR) diff --git a/cmarkdown.1 b/cmarkdown.1
@@ -1,23 +0,0 @@
-.TH cmarkdown 1 cmarkdown\-VERSION
-.SH NAME
-cmarkdown \- Markdown interpreter in C
-.SH SYNOPSIS
-.B cmarkdown
-.RB [ \-h ]
-.RB [ \-v ]
-.RB [ \-n ]
-.RB [ file ]
-.SH DESCRIPTION
-cmarkdown is a simple interpreter for the markdown syntax.
-.SH OPTIONS
-.TP
-.B \-v
-prints version information to standard error, then exits.
-.TP
-.B \-h
-prints usage information to standard error, then exits.
-.TP
-.B \-n
-escapes all HTML Tags.
-.SH BUGS
-Markdown may never be fully supported.
(DIR) diff --git a/cmarkdown.c b/cmarkdown.c
@@ -1,537 +0,0 @@
-/* cmarkdown
- * Copyright (C) <2007> Enno boland <g s01 de>
- *
- * See LICENSE for further informations
- */
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <string.h>
-
-#define BUFFERSIZE 512
-#define LENGTH(x) sizeof(x)/sizeof(x[0])
-#define ADDC(b,i) if(i % BUFFERSIZE == 0) \
- { b = realloc(b,(i + BUFFERSIZE) * sizeof(b)); if(!b) eprint("Malloc failed."); }; b[i]
-
-
-typedef unsigned int (*Parser)(const char *, const char *, int);
-struct Tag {
- char *search;
- int process;
- char *before, *after;
-};
-
-
-void eprint(const char *format, ...); /* Prints error and exits */
-unsigned int doamp(const char *begin, const char *end, int newblock);
- /* Parser for & */
-unsigned int dohtml(const char *begin, const char *end, int newblock);
- /* Parser for html */
-unsigned int dolineprefix(const char *begin, const char *end, int newblock);
- /* Parser for line prefix tags */
-unsigned int dolink(const char *begin, const char *end, int newblock);
- /* Parser for links and images */
-unsigned int dolist(const char *begin, const char *end, int newblock);
- /* Parser for lists */
-unsigned int doparagraph(const char *begin, const char *end, int newblock);
- /* Parser for paragraphs */
-unsigned int doreplace(const char *begin, const char *end, int newblock);
- /* Parser for simple replaces */
-unsigned int doshortlink(const char *begin, const char *end, int newblock);
- /* Parser for links and images */
-unsigned int dosurround(const char *begin, const char *end, int newblock);
- /* Parser for surrounding tags */
-unsigned int dounderline(const char *begin, const char *end, int newblock);
- /* Parser for underline tags */
-void hprint(const char *begin, const char *end); /* escapes HTML and prints it to stdout*/
-void process(const char *begin, const char *end, int isblock);
- /* Processes range between begin and end. */
-
-Parser parsers[] = { dounderline, dohtml, dolineprefix, dolist, doparagraph,
- dosurround, dolink, doshortlink, doamp, doreplace }; /* list of parsers */
-FILE *source;
-unsigned int bsize = 0, nohtml = 0;
-struct Tag lineprefix[] = {
- { " ", 0, "<pre><code>", "</code></pre>" },
- { "\t", 0, "<pre><code>", "</code></pre>" },
- { "> ", 2, "<blockquote>", "</blockquote>" },
- { "###### ", 1, "<h6>", "</h6>" },
- { "##### ", 1, "<h5>", "</h5>" },
- { "#### ", 1, "<h4>", "</h4>" },
- { "### ", 1, "<h3>", "</h3>" },
- { "## ", 1, "<h2>", "</h2>" },
- { "# ", 1, "<h1>", "</h1>" },
-};
-struct Tag underline[] = {
- { "=", 1, "<h1>", "</h1>\n" },
- { "-", 1, "<h2>", "</h2>\n" },
-};
-struct Tag surround[] = {
- { "``", 0, "<code>", "</code>" },
- { "`", 0, "<code>", "</code>" },
- { "__", 1, "<strong>", "</strong>" },
- { "**", 1, "<strong>", "</strong>" },
- { "*", 1, "<em>", "</em>" },
- { "_", 1, "<em>", "</em>" },
-};
-char * replace[][2] = {
- { "\n- - -\n", "\n<hr />\n" },
- { "\n- - - \n", "\n<hr />\n" },
- { " ######\n", "\n" },
- { " #####\n", "\n" },
- { " ####\n", "\n" },
- { " ###\n", "\n" },
- { " ##\n", "\n" },
- { " #\n", "\n" },
- { " >", ">" },
- { "< ", "<" },
- { "\\\\", "\\" },
- { "\\`", "`" },
- { "\\*", "*" },
- { "\\_", "_" },
- { "\\{", "{" },
- { "\\}", "}" },
- { "\\[", "[" },
- { "\\]", "]" },
- { "\\(", "(" },
- { "\\)", ")" },
- { "\\#", "#" },
- { "\\+", "+" },
- { "\\-", "-" },
- { "\\.", "." },
- { "\\!", "!" },
-};
-char * insert[][2] = {
- { " \n", "<br />" },
-};
-
-void
-eprint(const char *format, ...) {
- va_list ap;
-
- va_start(ap, format);
- vfprintf(stderr, format, ap);
- va_end(ap);
- exit(EXIT_FAILURE);
-}
-
-unsigned int
-doamp(const char *begin, const char *end, int newblock) {
- const char *p;
-
- if(*begin != '&')
- return 0;
- if(!nohtml) {
- for(p = begin + 1; !strchr("; \\\n\t",*p); p++);
- if(*p == ';')
- return 0;
- }
- fputs("&",stdout);
- return 1;
-}
-
-unsigned int
-dohtml(const char *begin, const char *end, int newblock) {
- const char *p, *tag, *tagend;
-
- if(nohtml || !newblock || *begin == '\n')
- return 0;
- p = begin;
- if(p[1] == '\n')
- p++;
- if(p[1] != '<' || strchr(" /\n\t\\",p[2]))
- return 0;
- tag = p + 2;
- p += 2;
- for(; !strchr(" >",*p);p++);
- tagend = p;
- while((p = strstr(p,"\n</")) && p < end) {
- p+=3;
- if(strncmp(p, tag, tagend-tag) == 0 && p[tagend-tag] == '>') {
- p++;
- fwrite(begin, sizeof(char), p - begin + tagend - tag,stdout);
- puts("\n");
- return -(p - begin + tagend - tag);
- }
- }
- return 0;
-}
-
-unsigned int
-dolineprefix(const char *begin, const char *end, int newblock) {
- unsigned int i, j, l;
- char *buffer;
- const char *p;
-
- if(!newblock)
- return 0;
- p = begin;
- for(i = 0; i < LENGTH(lineprefix); i++) {
- l = strlen(lineprefix[i].search);
- if(end - p < l)
- continue;
- if(strncmp(lineprefix[i].search,p,l))
- continue;
- if(!(buffer = malloc(BUFFERSIZE)))
- eprint("Malloc failed.");
- buffer[0] = '\0';
- fputs(lineprefix[i].before,stdout);
- for(j = 0, p += l; p != end; p++, j++) {
- ADDC(buffer,j) = *p;
- if(*p == '\n') {
- if(strncmp(lineprefix[i].search,p+1,l) != 0)
- break;
- p += l;
- }
- }
- ADDC(buffer,j) = '\0';
- if(lineprefix[i].process)
- process(buffer,buffer+strlen(buffer), lineprefix[i].process >= 2);
- else
- hprint(buffer,buffer+strlen(buffer));
- puts(lineprefix[i].after);
- free(buffer);
- return -(p - begin);
- }
- return 0;
-}
-
-unsigned int
-dolink(const char *begin, const char *end, int newblock) {
- int img;
- const char *desc, *link, *p, *q, *descend, *linkend;
-
- if(*begin == '[')
- img = 0;
- else if(strncmp(begin,"![",2) == 0)
- img = 1;
- else
- return 0;
- p = desc = begin + 1 + img;
- if(!(p = strstr(desc, "](")) || p > end)
- return 0;
- for(q = strstr(desc, "!["); q && q < end && q < p; q = strstr(q+1,"!["))
- if(!(p = strstr(p+1, "](")) || p > end)
- return 0;
- descend = p;
- link = p + 2;
- if(!(p = strstr(link, ")")) || p > end)
- return 0;
- linkend = p;
- if(img) {
- fputs("<img src=\"",stdout);
- hprint(link,linkend);
- fputs("\" alt=\"",stdout);
- hprint(desc,descend);
- fputs("\" />",stdout);
- }
- else {
- fputs("<a href=\"",stdout);
- hprint(link,linkend);
- fputs("\">",stdout);
- process(desc,descend,0);
- fputs("</a>",stdout);
- }
- return p + 1 - begin;
-}
-
-unsigned int
-dolist(const char *begin, const char *end, int newblock) {
- unsigned int i, j, indent, run, ul, isblock;
- const char *p, *q;
- char *buffer;
-
- isblock = 0;
- if(newblock)
- p = begin;
- else if(*begin == '\n')
- p = begin + 1;
- else
- return 0;
- q = p;
- if(*p == '-' || *p == '*' || *p == '+')
- ul = 1;
- else {
- ul = 0;
- for(; *p && p != end && *p >= '0' && *p <= '9';p++);
- if(!*p || p[0] != '.')
- return 0;
- }
- if(p[1] != ' ' && p[1] != '\t')
- return 0;
- for(p++; *p && p != end && (*p == ' ' || *p == '\t'); p++);
- indent = p - q;
- if(!(buffer = malloc(BUFFERSIZE)))
- eprint("Malloc failed.");
- if(!newblock)
- putchar('\n');
- fputs(ul ? "<ul>\n" : "<ol>\n",stdout);
- run = 1;
- for(i = 0; *p && p < end && run; p++) {
- buffer[0] = '\0';
- for(i = 0; *p && p < end && run; p++,i++) {
- if(*p == '\n') {
- if(p[1] == '\n') {
- p++;
- ADDC(buffer,i) = '\n';
- i++;
- run = 0;
- isblock++;
- }
- q = p + 1;
- j = 0;
- if(ul && (*q == '-' || *q == '*' || *q == '+'))
- j = 1;
- else if(!ul) {
- for(; q[j] >= '0' && q[j] <= '9' && j < indent; j++);
- if(j > 0 && q[j] == '.')
- j++;
- else
- j = 0;
- }
- for(;(q[j] == ' ' || *q == '\t') && j < indent; j++);
- if(j == indent) {
- ADDC(buffer,i) = '\n';
- i++;
- p += indent;
- run = 1;
- if(*q == ' ' || *q == '\t')
- p++;
- else
- break;
- }
- }
- ADDC(buffer,i) = *p;
- }
- ADDC(buffer,i) = '\0';
- fputs("<li>",stdout);
- process(buffer,buffer+i,isblock > 1 || (isblock == 1 && run));
- fputs("</li>\n",stdout);
- }
- fputs(ul ? "</ul>\n" : "</ol>\n",stdout);
- free(buffer);
- p--;
- while(*(--p) == '\n');
- return -(p - begin + 1);
-}
-
-unsigned int
-doparagraph(const char *begin, const char *end, int newblock) {
- const char *p, *q;
-
- if(!newblock)
- return 0;
- p = begin;
- q = strstr(p, "\n\n");
- if(!q || q > end)
- q = end;
- if(q - begin <= 1)
- return 0;
- fputs("<p>\n",stdout);
- process(p,q,0);
- fputs("\n</p>\n",stdout);
- return -(q - begin);
-}
-
-unsigned int
-doreplace(const char *begin, const char *end, int newblock) {
- unsigned int i, l;
-
- for(i = 0; i < LENGTH(insert); i++)
- if(strncmp(insert[i][0],begin,strlen(insert[i][0])) == 0)
- fputs(insert[i][1], stdout);
- 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
-doshortlink(const char *begin, const char *end, int newblock) {
- const char *p, *c;
- int ismail = 0;
-
- if(*begin != '<')
- return 0;
- for(p = begin+1; p && p != end && !strchr(" \t\n",*p); p++) {
- switch(*p) {
- case '#':
- case ':':
- ismail = -1;
- break;
- case '@':
- if(ismail == 0)
- ismail = 1;
- break;
- case '>':
- if(ismail == 0)
- return 0;
- fputs("<a href=\"",stdout);
- if(ismail == 1) {
- /* mailto: */
- fputs("mailto:",stdout);
- for(c = begin+1; *c != '>'; c++) {
- printf("&#%u;",*c);
- }
- fputs("\">",stdout);
- for(c = begin+1; *c != '>'; c++) {
- printf("&#%u;",*c);
- }
- }
- else {
- hprint(begin+1,p);
- fputs("\">",stdout);
- hprint(begin+1,p);
- }
- fputs("</a>",stdout);
- return p - begin + 1;
- }
- }
- return 0;
-}
-
-unsigned int
-dosurround(const char *begin, const char *end, int newblock) {
- unsigned int i,l;
- const char *p, *ps, *q, *qend;
-
- 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;
- fputs(surround[i].before,stdout);
- for(q = begin + strlen(surround[i].search); *q == ' '; q++);
- for(qend = p-1; *qend == ' '; qend--);
- if(surround[i].process)
- process(q, qend+1,0);
- else
- hprint(q, qend+1);
- fputs(surround[i].after,stdout);
- return p - begin + l;
- }
- return 0;
-}
-
-unsigned int
-dounderline(const char *begin, const char *end, int newblock) {
- unsigned int i, j, l;
- const char *p;
-
- if(!newblock)
- return 0;
- p = begin;
- for(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) {
- fputs(underline[i].before,stdout);
- if(underline[i].process)
- process(begin, begin + l, 0);
- else
- hprint(begin, begin + l);
- fputs(underline[i].after,stdout);
- return -(j + p - begin);
- }
- }
- return 0;
-}
-
-void
-hprint(const char *begin, const char *end) {
- const char *p;
-
- for(p = begin; p && p != end; p++) {
- if(*p == '&')
- fputs("&",stdout);
- else if(*p == '"')
- fputs(""",stdout);
- else if(*p == '>')
- fputs(">",stdout);
- else if(*p == '<')
- fputs("<",stdout);
- else
- putchar(*p);
- }
-}
-
-void
-process(const char *begin, const char *end, int newblock) {
- const char *p, *q;
- int affected;
- unsigned int i;
-
- for(p = begin; *p && p < end;) {
- if(newblock)
- while(*p == '\n') p++;
- affected = 0;
- for(i = 0; i < LENGTH(parsers) && affected == 0; i++)
- affected = parsers[i](p, end, newblock);
- p += abs(affected);
- if(!affected) {
- if(nohtml)
- hprint(p,p+1);
- else
- putchar(*p);
- p++;
- }
- for(q = p; *q == '\n' && q < end; q++);
- if(q == end)
- return;
- else if(p[0] == '\n' && p[1] == '\n')
- newblock = 1;
- else
- newblock = affected < 0;
- }
-}
-
-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 %s (C) Enno Boland\n",VERSION);
- else if(argc > 1 && strcmp("-h", argv[1]) == 0)
- eprint("Usage %s [-n] [file]\n -n escape html strictly\n",argv[0]);
- if(argc > 1 && strcmp("-n", argv[1]) == 0)
- nohtml = 1;
- if(argc > 1 + nohtml && strcmp("-", argv[1 + nohtml]) != 0
- && !(source = fopen(argv[1 + nohtml],"r")))
- eprint("Cannot open file `%s`\n",argv[1 + nohtml]);
- if(!(buffer = malloc(BUFFERSIZE)))
- eprint("Malloc failed.");
- bsize = BUFFERSIZE;
- buffer[0] = '\0';
- 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)))
- eprint("Malloc failed.");
- }
- }
- process(buffer,buffer+strlen(buffer),1);
- free(buffer);
- return EXIT_SUCCESS;
-}
(DIR) diff --git a/config.mk b/config.mk
@@ -1,4 +1,4 @@
-# cmarkdown version
+# smu version
VERSION = 0.9
# paths
(DIR) diff --git a/smu.1 b/smu.1
@@ -0,0 +1,23 @@
+.TH smu 1 smu\-VERSION
+.SH NAME
+smu \- simple markup
+.SH SYNOPSIS
+.B smu
+.RB [ \-h ]
+.RB [ \-v ]
+.RB [ \-n ]
+.RB [ file ]
+.SH DESCRIPTION
+smu is a simple interpreter for a simplified markdown dialect.
+.SH OPTIONS
+.TP
+.B \-v
+prints version information to standard error, then exits.
+.TP
+.B \-h
+prints usage information to standard error, then exits.
+.TP
+.B \-n
+escapes all HTML Tags.
+.SH BUGS
+Please report any Bugs!
(DIR) diff --git a/smu.c b/smu.c
@@ -0,0 +1,537 @@
+/* smu - simple markup
+ * Copyright (C) <2007> Enno boland <g s01 de>
+ *
+ * See LICENSE for further informations
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdarg.h>
+#include <string.h>
+
+#define BUFFERSIZE 512
+#define LENGTH(x) sizeof(x)/sizeof(x[0])
+#define ADDC(b,i) if(i % BUFFERSIZE == 0) \
+ { b = realloc(b,(i + BUFFERSIZE) * sizeof(b)); if(!b) eprint("Malloc failed."); }; b[i]
+
+
+typedef unsigned int (*Parser)(const char *, const char *, int);
+struct Tag {
+ char *search;
+ int process;
+ char *before, *after;
+};
+
+
+void eprint(const char *format, ...); /* Prints error and exits */
+unsigned int doamp(const char *begin, const char *end, int newblock);
+ /* Parser for & */
+unsigned int dohtml(const char *begin, const char *end, int newblock);
+ /* Parser for html */
+unsigned int dolineprefix(const char *begin, const char *end, int newblock);
+ /* Parser for line prefix tags */
+unsigned int dolink(const char *begin, const char *end, int newblock);
+ /* Parser for links and images */
+unsigned int dolist(const char *begin, const char *end, int newblock);
+ /* Parser for lists */
+unsigned int doparagraph(const char *begin, const char *end, int newblock);
+ /* Parser for paragraphs */
+unsigned int doreplace(const char *begin, const char *end, int newblock);
+ /* Parser for simple replaces */
+unsigned int doshortlink(const char *begin, const char *end, int newblock);
+ /* Parser for links and images */
+unsigned int dosurround(const char *begin, const char *end, int newblock);
+ /* Parser for surrounding tags */
+unsigned int dounderline(const char *begin, const char *end, int newblock);
+ /* Parser for underline tags */
+void hprint(const char *begin, const char *end); /* escapes HTML and prints it to stdout*/
+void process(const char *begin, const char *end, int isblock);
+ /* Processes range between begin and end. */
+
+Parser parsers[] = { dounderline, dohtml, dolineprefix, dolist, doparagraph,
+ dosurround, dolink, doshortlink, doamp, doreplace }; /* list of parsers */
+FILE *source;
+unsigned int bsize = 0, nohtml = 0;
+struct Tag lineprefix[] = {
+ { " ", 0, "<pre><code>", "</code></pre>" },
+ { "\t", 0, "<pre><code>", "</code></pre>" },
+ { "> ", 2, "<blockquote>", "</blockquote>" },
+ { "###### ", 1, "<h6>", "</h6>" },
+ { "##### ", 1, "<h5>", "</h5>" },
+ { "#### ", 1, "<h4>", "</h4>" },
+ { "### ", 1, "<h3>", "</h3>" },
+ { "## ", 1, "<h2>", "</h2>" },
+ { "# ", 1, "<h1>", "</h1>" },
+};
+struct Tag underline[] = {
+ { "=", 1, "<h1>", "</h1>\n" },
+ { "-", 1, "<h2>", "</h2>\n" },
+};
+struct Tag surround[] = {
+ { "``", 0, "<code>", "</code>" },
+ { "`", 0, "<code>", "</code>" },
+ { "__", 1, "<strong>", "</strong>" },
+ { "**", 1, "<strong>", "</strong>" },
+ { "*", 1, "<em>", "</em>" },
+ { "_", 1, "<em>", "</em>" },
+};
+char * replace[][2] = {
+ { "\n- - -\n", "\n<hr />\n" },
+ { "\n- - - \n", "\n<hr />\n" },
+ { " ######\n", "\n" },
+ { " #####\n", "\n" },
+ { " ####\n", "\n" },
+ { " ###\n", "\n" },
+ { " ##\n", "\n" },
+ { " #\n", "\n" },
+ { " >", ">" },
+ { "< ", "<" },
+ { "\\\\", "\\" },
+ { "\\`", "`" },
+ { "\\*", "*" },
+ { "\\_", "_" },
+ { "\\{", "{" },
+ { "\\}", "}" },
+ { "\\[", "[" },
+ { "\\]", "]" },
+ { "\\(", "(" },
+ { "\\)", ")" },
+ { "\\#", "#" },
+ { "\\+", "+" },
+ { "\\-", "-" },
+ { "\\.", "." },
+ { "\\!", "!" },
+};
+char * insert[][2] = {
+ { " \n", "<br />" },
+};
+
+void
+eprint(const char *format, ...) {
+ va_list ap;
+
+ va_start(ap, format);
+ vfprintf(stderr, format, ap);
+ va_end(ap);
+ exit(EXIT_FAILURE);
+}
+
+unsigned int
+doamp(const char *begin, const char *end, int newblock) {
+ const char *p;
+
+ if(*begin != '&')
+ return 0;
+ if(!nohtml) {
+ for(p = begin + 1; !strchr("; \\\n\t",*p); p++);
+ if(*p == ';')
+ return 0;
+ }
+ fputs("&",stdout);
+ return 1;
+}
+
+unsigned int
+dohtml(const char *begin, const char *end, int newblock) {
+ const char *p, *tag, *tagend;
+
+ if(nohtml || !newblock || *begin == '\n')
+ return 0;
+ p = begin;
+ if(p[1] == '\n')
+ p++;
+ if(p[1] != '<' || strchr(" /\n\t\\",p[2]))
+ return 0;
+ tag = p + 2;
+ p += 2;
+ for(; !strchr(" >",*p);p++);
+ tagend = p;
+ while((p = strstr(p,"\n</")) && p < end) {
+ p+=3;
+ if(strncmp(p, tag, tagend-tag) == 0 && p[tagend-tag] == '>') {
+ p++;
+ fwrite(begin, sizeof(char), p - begin + tagend - tag,stdout);
+ puts("\n");
+ return -(p - begin + tagend - tag);
+ }
+ }
+ return 0;
+}
+
+unsigned int
+dolineprefix(const char *begin, const char *end, int newblock) {
+ unsigned int i, j, l;
+ char *buffer;
+ const char *p;
+
+ if(!newblock)
+ return 0;
+ p = begin;
+ for(i = 0; i < LENGTH(lineprefix); i++) {
+ l = strlen(lineprefix[i].search);
+ if(end - p < l)
+ continue;
+ if(strncmp(lineprefix[i].search,p,l))
+ continue;
+ if(!(buffer = malloc(BUFFERSIZE)))
+ eprint("Malloc failed.");
+ buffer[0] = '\0';
+ fputs(lineprefix[i].before,stdout);
+ for(j = 0, p += l; p != end; p++, j++) {
+ ADDC(buffer,j) = *p;
+ if(*p == '\n') {
+ if(strncmp(lineprefix[i].search,p+1,l) != 0)
+ break;
+ p += l;
+ }
+ }
+ ADDC(buffer,j) = '\0';
+ if(lineprefix[i].process)
+ process(buffer,buffer+strlen(buffer), lineprefix[i].process >= 2);
+ else
+ hprint(buffer,buffer+strlen(buffer));
+ puts(lineprefix[i].after);
+ free(buffer);
+ return -(p - begin);
+ }
+ return 0;
+}
+
+unsigned int
+dolink(const char *begin, const char *end, int newblock) {
+ int img;
+ const char *desc, *link, *p, *q, *descend, *linkend;
+
+ if(*begin == '[')
+ img = 0;
+ else if(strncmp(begin,"![",2) == 0)
+ img = 1;
+ else
+ return 0;
+ p = desc = begin + 1 + img;
+ if(!(p = strstr(desc, "](")) || p > end)
+ return 0;
+ for(q = strstr(desc, "!["); q && q < end && q < p; q = strstr(q+1,"!["))
+ if(!(p = strstr(p+1, "](")) || p > end)
+ return 0;
+ descend = p;
+ link = p + 2;
+ if(!(p = strstr(link, ")")) || p > end)
+ return 0;
+ linkend = p;
+ if(img) {
+ fputs("<img src=\"",stdout);
+ hprint(link,linkend);
+ fputs("\" alt=\"",stdout);
+ hprint(desc,descend);
+ fputs("\" />",stdout);
+ }
+ else {
+ fputs("<a href=\"",stdout);
+ hprint(link,linkend);
+ fputs("\">",stdout);
+ process(desc,descend,0);
+ fputs("</a>",stdout);
+ }
+ return p + 1 - begin;
+}
+
+unsigned int
+dolist(const char *begin, const char *end, int newblock) {
+ unsigned int i, j, indent, run, ul, isblock;
+ const char *p, *q;
+ char *buffer;
+
+ isblock = 0;
+ if(newblock)
+ p = begin;
+ else if(*begin == '\n')
+ p = begin + 1;
+ else
+ return 0;
+ q = p;
+ if(*p == '-' || *p == '*' || *p == '+')
+ ul = 1;
+ else {
+ ul = 0;
+ for(; *p && p != end && *p >= '0' && *p <= '9';p++);
+ if(!*p || p[0] != '.')
+ return 0;
+ }
+ if(p[1] != ' ' && p[1] != '\t')
+ return 0;
+ for(p++; *p && p != end && (*p == ' ' || *p == '\t'); p++);
+ indent = p - q;
+ if(!(buffer = malloc(BUFFERSIZE)))
+ eprint("Malloc failed.");
+ if(!newblock)
+ putchar('\n');
+ fputs(ul ? "<ul>\n" : "<ol>\n",stdout);
+ run = 1;
+ for(i = 0; *p && p < end && run; p++) {
+ buffer[0] = '\0';
+ for(i = 0; *p && p < end && run; p++,i++) {
+ if(*p == '\n') {
+ if(p[1] == '\n') {
+ p++;
+ ADDC(buffer,i) = '\n';
+ i++;
+ run = 0;
+ isblock++;
+ }
+ q = p + 1;
+ j = 0;
+ if(ul && (*q == '-' || *q == '*' || *q == '+'))
+ j = 1;
+ else if(!ul) {
+ for(; q[j] >= '0' && q[j] <= '9' && j < indent; j++);
+ if(j > 0 && q[j] == '.')
+ j++;
+ else
+ j = 0;
+ }
+ for(;(q[j] == ' ' || *q == '\t') && j < indent; j++);
+ if(j == indent) {
+ ADDC(buffer,i) = '\n';
+ i++;
+ p += indent;
+ run = 1;
+ if(*q == ' ' || *q == '\t')
+ p++;
+ else
+ break;
+ }
+ }
+ ADDC(buffer,i) = *p;
+ }
+ ADDC(buffer,i) = '\0';
+ fputs("<li>",stdout);
+ process(buffer,buffer+i,isblock > 1 || (isblock == 1 && run));
+ fputs("</li>\n",stdout);
+ }
+ fputs(ul ? "</ul>\n" : "</ol>\n",stdout);
+ free(buffer);
+ p--;
+ while(*(--p) == '\n');
+ return -(p - begin + 1);
+}
+
+unsigned int
+doparagraph(const char *begin, const char *end, int newblock) {
+ const char *p, *q;
+
+ if(!newblock)
+ return 0;
+ p = begin;
+ q = strstr(p, "\n\n");
+ if(!q || q > end)
+ q = end;
+ if(q - begin <= 1)
+ return 0;
+ fputs("<p>\n",stdout);
+ process(p,q,0);
+ fputs("\n</p>\n",stdout);
+ return -(q - begin);
+}
+
+unsigned int
+doreplace(const char *begin, const char *end, int newblock) {
+ unsigned int i, l;
+
+ for(i = 0; i < LENGTH(insert); i++)
+ if(strncmp(insert[i][0],begin,strlen(insert[i][0])) == 0)
+ fputs(insert[i][1], stdout);
+ 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
+doshortlink(const char *begin, const char *end, int newblock) {
+ const char *p, *c;
+ int ismail = 0;
+
+ if(*begin != '<')
+ return 0;
+ for(p = begin+1; p && p != end && !strchr(" \t\n",*p); p++) {
+ switch(*p) {
+ case '#':
+ case ':':
+ ismail = -1;
+ break;
+ case '@':
+ if(ismail == 0)
+ ismail = 1;
+ break;
+ case '>':
+ if(ismail == 0)
+ return 0;
+ fputs("<a href=\"",stdout);
+ if(ismail == 1) {
+ /* mailto: */
+ fputs("mailto:",stdout);
+ for(c = begin+1; *c != '>'; c++) {
+ printf("&#%u;",*c);
+ }
+ fputs("\">",stdout);
+ for(c = begin+1; *c != '>'; c++) {
+ printf("&#%u;",*c);
+ }
+ }
+ else {
+ hprint(begin+1,p);
+ fputs("\">",stdout);
+ hprint(begin+1,p);
+ }
+ fputs("</a>",stdout);
+ return p - begin + 1;
+ }
+ }
+ return 0;
+}
+
+unsigned int
+dosurround(const char *begin, const char *end, int newblock) {
+ unsigned int i,l;
+ const char *p, *ps, *q, *qend;
+
+ 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;
+ fputs(surround[i].before,stdout);
+ for(q = begin + strlen(surround[i].search); *q == ' '; q++);
+ for(qend = p-1; *qend == ' '; qend--);
+ if(surround[i].process)
+ process(q, qend+1,0);
+ else
+ hprint(q, qend+1);
+ fputs(surround[i].after,stdout);
+ return p - begin + l;
+ }
+ return 0;
+}
+
+unsigned int
+dounderline(const char *begin, const char *end, int newblock) {
+ unsigned int i, j, l;
+ const char *p;
+
+ if(!newblock)
+ return 0;
+ p = begin;
+ for(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) {
+ fputs(underline[i].before,stdout);
+ if(underline[i].process)
+ process(begin, begin + l, 0);
+ else
+ hprint(begin, begin + l);
+ fputs(underline[i].after,stdout);
+ return -(j + p - begin);
+ }
+ }
+ return 0;
+}
+
+void
+hprint(const char *begin, const char *end) {
+ const char *p;
+
+ for(p = begin; p && p != end; p++) {
+ if(*p == '&')
+ fputs("&",stdout);
+ else if(*p == '"')
+ fputs(""",stdout);
+ else if(*p == '>')
+ fputs(">",stdout);
+ else if(*p == '<')
+ fputs("<",stdout);
+ else
+ putchar(*p);
+ }
+}
+
+void
+process(const char *begin, const char *end, int newblock) {
+ const char *p, *q;
+ int affected;
+ unsigned int i;
+
+ for(p = begin; *p && p < end;) {
+ if(newblock)
+ while(*p == '\n') p++;
+ affected = 0;
+ for(i = 0; i < LENGTH(parsers) && affected == 0; i++)
+ affected = parsers[i](p, end, newblock);
+ p += abs(affected);
+ if(!affected) {
+ if(nohtml)
+ hprint(p,p+1);
+ else
+ putchar(*p);
+ p++;
+ }
+ for(q = p; *q == '\n' && q < end; q++);
+ if(q == end)
+ return;
+ else if(p[0] == '\n' && p[1] == '\n')
+ newblock = 1;
+ else
+ newblock = affected < 0;
+ }
+}
+
+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 %s (C) Enno Boland\n",VERSION);
+ else if(argc > 1 && strcmp("-h", argv[1]) == 0)
+ eprint("Usage %s [-n] [file]\n -n escape html strictly\n",argv[0]);
+ if(argc > 1 && strcmp("-n", argv[1]) == 0)
+ nohtml = 1;
+ if(argc > 1 + nohtml && strcmp("-", argv[1 + nohtml]) != 0
+ && !(source = fopen(argv[1 + nohtml],"r")))
+ eprint("Cannot open file `%s`\n",argv[1 + nohtml]);
+ if(!(buffer = malloc(BUFFERSIZE)))
+ eprint("Malloc failed.");
+ bsize = BUFFERSIZE;
+ buffer[0] = '\0';
+ 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)))
+ eprint("Malloc failed.");
+ }
+ }
+ process(buffer,buffer+strlen(buffer),1);
+ free(buffer);
+ return EXIT_SUCCESS;
+}