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6 changed files with 322 additions and 435 deletions

View file

@ -1,17 +1,12 @@
# libsmu - simple markup # libsmu - simple markup
# (c) 2007, 2008 Enno Boland # (c) 2007, 2008 Enno Boland
VERSION = 1.5 include config.mk
PREFIX ?= /usr/local
MANPREFIX ?= ${PREFIX}/share/man
CFLAGS += -DVERSION=\"${VERSION}\"
PGO_GEN = ${CFLAGS} -fprofile-generate
PGO_USE = ${CFLAGS} -fprofile-use -fprofile-correction
LDFLAGS ?=
CC ?= cc
SRC = smu.c
all: smu SRC = smu.c
OBJ = ${SRC:.c=.o}
all: options smu
options: options:
@echo smu build options: @echo smu build options:
@ -19,51 +14,42 @@ options:
@echo "LDFLAGS = ${LDFLAGS}" @echo "LDFLAGS = ${LDFLAGS}"
@echo "CC = ${CC}" @echo "CC = ${CC}"
smu: ${SRC} .c.o:
@echo CC $@ @echo CC $<
@${CC} -o $@ ${SRC} ${CFLAGS} ${LDFLAGS} @${CC} -c ${CFLAGS} $<
pgo-build: ${SRC} ${OBJ}: config.mk
@echo CC smu
@${CC} -o smu ${SRC} ${PGO_GEN} ${LDFLAGS}
@echo Generating pgo data
@printf .
@./smu testdoc > /dev/null
@printf .
@cat testdoc | ./smu > /dev/null
@printf .
@./smu -n testdoc > /dev/null
@printf .
@cat testdoc | ./smu -n > /dev/null
@printf .
@rm smu
@printf '\n'
@echo Recompiling with pgo data
@echo CC smu
@${CC} -o smu ${SRC} ${PGO_USE} ${LDFLAGS}
@rm smu.gcda
smu: ${OBJ}
@echo LD $@
@${CC} -o $@ ${OBJ} ${LDFLAGS}
clean: clean:
rm -f smu ${OBJ} ${LIBOBJ} smu-${VERSION}.tar.gz @echo cleaning
@rm -f smu ${OBJ} ${LIBOBJ} smu-${VERSION}.tar.gz
dist: clean dist: clean
mkdir -p smu-${VERSION} @echo creating dist tarball
cp -R LICENSE Makefile config.mk smu.1 ${SRC} smu-${VERSION} @mkdir -p smu-${VERSION}
tar -cf smu-${VERSION}.tar smu-${VERSION} @cp -R LICENSE Makefile config.mk smu.1 ${SRC} smu-${VERSION}
gzip smu-${VERSION}.tar @tar -cf smu-${VERSION}.tar smu-${VERSION}
rm -rf smu-${VERSION} @gzip smu-${VERSION}.tar
@rm -rf smu-${VERSION}
install: all install: all
mkdir -p ${DESTDIR}${PREFIX}/bin @echo installing executable file to ${DESTDIR}${PREFIX}/bin
cp -f smu ${DESTDIR}${PREFIX}/bin @mkdir -p ${DESTDIR}${PREFIX}/bin
chmod 755 ${DESTDIR}${PREFIX}/bin/smu @cp -f smu ${DESTDIR}${PREFIX}/bin
mkdir -p ${DESTDIR}${MANPREFIX}/man1 @chmod 755 ${DESTDIR}${PREFIX}/bin/smu
sed "s/VERSION/${VERSION}/g" < smu.1 > ${DESTDIR}${MANPREFIX}/man1/smu.1 @echo installing manual page to ${DESTDIR}${MANPREFIX}/man1
chmod 644 ${DESTDIR}${MANPREFIX}/man1/smu.1 @mkdir -p ${DESTDIR}${MANPREFIX}/man1
@sed "s/VERSION/${VERSION}/g" < smu.1 > ${DESTDIR}${MANPREFIX}/man1/smu.1
@chmod 644 ${DESTDIR}${MANPREFIX}/man1/smu.1
uninstall: uninstall:
rm -f ${DESTDIR}${PREFIX}/bin/smu @echo removing executable file from ${DESTDIR}${PREFIX}/bin
rm -f ${DESTDIR}${MANPREFIX}/man1/smu.1 @rm -f ${DESTDIR}${PREFIX}/bin/smu
@echo removing manual page from ${DESTDIR}${MANPREFIX}/man1
@rm -f ${DESTDIR}${MANPREFIX}/man1/smu.1
.PHONY: all options clean dist install uninstall pgo-build .PHONY: all options clean dist install uninstall

20
config.mk Normal file
View file

@ -0,0 +1,20 @@
# smu version
VERSION = 1.5
# paths
PREFIX = /usr/local
MANPREFIX = ${PREFIX}/share/man
# includes and libs
INCS = -I. -I/usr/include
LIBS = -L/usr/lib
# flags
CFLAGS = -g -O0 -Wall -Werror -ansi ${INCS} -DVERSION=\"${VERSION}\"
#CFLAGS = -fprofile-arcs -ftest-coverage -pg -g -O0 -Wall -Werror -ansi ${INCS} -DVERSION=\"${VERSION}\"
#CFLAGS = -Os -Wall -Werror -ansi ${INCS} -DVERSION=\"${VERSION}\"
#LDFLAGS = -fprofile-arcs -ftest-coverage -pg ${LIBS}
LDFLAGS = ${LIBS}
# compiler
CC = cc

2
smu.1
View file

@ -20,4 +20,4 @@ prints usage information to standard error, then exits.
.B \-n .B \-n
escapes all HTML Tags. escapes all HTML Tags.
.SH BUGS .SH BUGS
Report any bugs to tenno+smu@suij.in Please report any Bugs to https://github.com/Gottox/smu/issues or via mail.

386
smu.c
View file

@ -1,78 +1,48 @@
/* smu - simple markup /* smu - simple markup
* Copyright (C) <2007, 2008> Enno Boland <g s01 de> * Copyright (C) <2007, 2008> Enno Boland <g s01 de>
* Copyright (C) 2025 Enno Tensing <tenno+smu@suij.in>
* *
* See LICENSE for further informations * See LICENSE for further informations
*/ */
#define _LARGEFILE64_SOURCE
#include <stdarg.h> #include <stdarg.h>
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include <ctype.h> #include <ctype.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
#include <errno.h>
#ifndef PACKAGE
#define PACKAGE "smu"
#endif
#ifndef VERSION
#define VERSION "0.0"
#endif
#define CHARWIDTH 4
#define LENGTH(x) sizeof(x)/sizeof(x[0]) #define LENGTH(x) sizeof(x)/sizeof(x[0])
#define ADDC(b, i, a) \ #define ADDC(b,i) if(i % BUFSIZ == 0) { b = realloc(b, (i + BUFSIZ) * sizeof(char)); if(!b) eprint("Malloc failed."); } b[i]
do { \
if (i % BUFSIZ == 0) { \
b = realloc(b, (i + BUFSIZ) * sizeof(char)); \
if (!b) { \
eprint("Malloc failed."); \
return -1; \
} \
} \
b[i] = a; \
} while (0)
typedef int (*Parser)(const char *, const char *, int); typedef int (*Parser)(const char *, const char *, int);
struct tag { typedef struct {
char *search; char *search;
int process; int process;
char *before; char *before, *after;
char *after; } Tag;
};
off64_t get_file_size(const char *); static int doamp(const char *begin, const char *end, int newblock); /* Parser for & */
char *read_file(const char *, off64_t); static int docomment(const char *begin, const char *end, int newblock); /* Parser for html-comments */
static int dogtlt(const char *begin, const char *end, int newblock); /* Parser for < and > */
static int doamp(const char *begin, const char *end, int newblock); static int dohtml(const char *begin, const char *end, int newblock); /* Parser for html */
static int docomment(const char *begin, const char *end, int newblock); static int dolineprefix(const char *begin, const char *end, int newblock);/* Parser for line prefix tags */
static int dogtlt(const char *begin, const char *end, int newblock); static int dolink(const char *begin, const char *end, int newblock); /* Parser for links and images */
static int dohtml(const char *begin, const char *end, int newblock); static int dolist(const char *begin, const char *end, int newblock); /* Parser for lists */
static int dolineprefix(const char *begin, const char *end, int newblock); static int doparagraph(const char *begin, const char *end, int newblock); /* Parser for paragraphs */
static int dolink(const char *begin, const char *end, int newblock); static int doreplace(const char *begin, const char *end, int newblock); /* Parser for simple replaces */
static int dolist(const char *begin, const char *end, int newblock); static int doshortlink(const char *begin, const char *end, int newblock); /* Parser for links and images */
static int doparagraph(const char *begin, const char *end, int newblock); static int dosurround(const char *begin, const char *end, int newblock); /* Parser for surrounding tags */
static int doreplace(const char *begin, const char *end, int newblock); static int dounderline(const char *begin, const char *end, int newblock); /* Parser for underline tags */
static int doshortlink(const char *begin, const char *end, int newblock);
static int dosurround(const char *begin, const char *end, int newblock);
static int dounderline(const char *begin, const char *end, int newblock);
static void *ereallocz(void *p, size_t size); static void *ereallocz(void *p, size_t size);
static void eprint(const char *format, ...); static void eprint(const char *format, ...);
static void hprint(const char *begin, const char *end); static void hprint(const char *begin, const char *end); /* escapes HTML and prints it to output */
static int process(const char *begin, const char *end, int isblock); static void process(const char *begin, const char *end, int isblock); /* Processes range between begin and end. */
/* list of parsers */ /* list of parsers */
static Parser parsers[] = { dounderline, docomment, dolineprefix, dolist, static Parser parsers[] = { dounderline, docomment, dolineprefix,
doparagraph, dogtlt, dosurround, dolink, dolist, doparagraph, dogtlt, dosurround, dolink,
doshortlink, dohtml, doamp, doreplace }; doshortlink, dohtml, doamp, doreplace };
static int nohtml = 0; static int nohtml = 0;
static struct tag lineprefix[] = { static Tag lineprefix[] = {
{ " ", 0, "<pre><code>", "\n</code></pre>" }, { " ", 0, "<pre><code>", "\n</code></pre>" },
{ "\t", 0, "<pre><code>", "\n</code></pre>" }, { "\t", 0, "<pre><code>", "\n</code></pre>" },
{ ">", 2, "<blockquote>", "</blockquote>" }, { ">", 2, "<blockquote>", "</blockquote>" },
@ -85,13 +55,12 @@ static struct tag lineprefix[] = {
{ "- - -\n", 1, "<hr />", ""}, { "- - -\n", 1, "<hr />", ""},
}; };
static struct tag underline[] = { static Tag underline[] = {
{ "=", 1, "<h1>", "</h1>\n" }, { "=", 1, "<h1>", "</h1>\n" },
{ "-", 1, "<h2>", "</h2>\n" }, { "-", 1, "<h2>", "</h2>\n" },
}; };
static struct tag surround[] = { static Tag surround[] = {
{ "```", 0, "<code>", "</code>" },
{ "``", 0, "<code>", "</code>" }, { "``", 0, "<code>", "</code>" },
{ "`", 0, "<code>", "</code>" }, { "`", 0, "<code>", "</code>" },
{ "___", 1, "<strong><em>", "</em></strong>" }, { "___", 1, "<strong><em>", "</em></strong>" },
@ -103,70 +72,45 @@ static struct tag surround[] = {
}; };
static const char *replace[][2] = { static const char *replace[][2] = {
{ "\\\\", "\\" }, { "\\`", "`" }, { "\\*", "*" }, { "\\_", "_" }, { "\\\\", "\\" },
{ "\\{", "{" }, { "\\}", "}" }, { "\\[", "[" }, { "\\]", "]" }, { "\\`", "`" },
{ "\\(", "(" }, { "\\)", ")" }, { "\\#", "#" }, { "\\+", "+" }, { "\\*", "*" },
{ "\\-", "-" }, { "\\.", "." }, { "\\!", "!" }, { "\\_", "_" },
{ "\\{", "{" },
{ "\\}", "}" },
{ "\\[", "[" },
{ "\\]", "]" },
{ "\\(", "(" },
{ "\\)", ")" },
{ "\\#", "#" },
{ "\\+", "+" },
{ "\\-", "-" },
{ "\\.", "." },
{ "\\!", "!" },
}; };
static const char *insert[][2] = { static const char *insert[][2] = {
{ " \n", "<br />" }, { " \n", "<br />" },
}; };
off64_t get_file_size(const char *path) void
{ eprint(const char *format, ...) {
struct stat st;
if (stat(path, &st) == 0)
return st.st_size;
return -1;
}
char *read_file(const char *path, off64_t file_size)
{
int fd = open(path, O_LARGEFILE | O_NONBLOCK);
ssize_t bytes;
char *buf = calloc(file_size + CHARWIDTH, sizeof(char));
if (!buf) {
perror(PACKAGE);
close(fd);
return NULL;
}
bytes = read(fd, buf, file_size);
if (bytes != file_size) {
perror(PACKAGE);
close(fd);
free(buf);
return NULL;
}
close(fd);
return buf;
}
void eprint(const char *format, ...)
{
va_list ap; va_list ap;
va_start(ap, format); va_start(ap, format);
vfprintf(stderr, format, ap); vfprintf(stderr, format, ap);
va_end(ap); va_end(ap);
exit(EXIT_FAILURE);
} }
int doamp(const char *begin, const char *end, int newblock) int
{ doamp(const char *begin, const char *end, int newblock) {
const char *p; const char *p;
if(*begin != '&') if(*begin != '&')
return 0; return 0;
if(!nohtml) { if(!nohtml) {
for (p = begin + 1; p != end && !strchr("; \\\n\t", *p); p++) for(p = begin + 1; p != end && !strchr("; \\\n\t", *p); p++);
;
if(p == end || *p == ';') if(p == end || *p == ';')
return 0; return 0;
} }
@ -174,8 +118,8 @@ int doamp(const char *begin, const char *end, int newblock)
return 1; return 1;
} }
int dogtlt(const char *begin, const char *end, int newblock) int
{ dogtlt(const char *begin, const char *end, int newblock) {
int brpos; int brpos;
char c; char c;
@ -188,16 +132,16 @@ int dogtlt(const char *begin, const char *end, int newblock)
if(!brpos && (c < 'a' || c > 'z') && (c < 'A' || c > 'Z')) { if(!brpos && (c < 'a' || c > 'z') && (c < 'A' || c > 'Z')) {
fputs("&lt;", stdout); fputs("&lt;", stdout);
return 1; return 1;
} else if (brpos && (c < 'a' || c > 'z') && (c < 'A' || c > 'Z') && }
!strchr("/\"'", c)) { else if(brpos && (c < 'a' || c > 'z') && (c < 'A' || c > 'Z') && !strchr("/\"'",c)) {
fprintf(stdout, "%c&gt;",c); fprintf(stdout, "%c&gt;",c);
return 2; return 2;
} }
return 0; return 0;
} }
int docomment(const char *begin, const char *end, int newblock) int
{ docomment(const char *begin, const char *end, int newblock) {
char *p; char *p;
if(nohtml || strncmp("<!--", begin, 4)) if(nohtml || strncmp("<!--", begin, 4))
@ -209,8 +153,8 @@ int docomment(const char *begin, const char *end, int newblock)
return (p + 3 - begin) * (newblock ? -1 : 1); return (p + 3 - begin) * (newblock ? -1 : 1);
} }
int dohtml(const char *begin, const char *end, int newblock) int
{ dohtml(const char *begin, const char *end, int newblock) {
const char *p, *tag, *tagend; const char *p, *tag, *tagend;
if(nohtml || begin + 2 >= end) if(nohtml || begin + 2 >= end)
@ -220,18 +164,15 @@ int dohtml(const char *begin, const char *end, int newblock)
return 0; return 0;
p++; p++;
tag = p; tag = p;
for (; isalnum(*p) && p < end; p++) for(; isalnum(*p) && p < end; p++);
;
tagend = p; tagend = p;
if(p > end || tag == tagend) if(p > end || tag == tagend)
return 0; return 0;
while((p = strstr(p, "</")) && p < end) { while((p = strstr(p, "</")) && p < end) {
p += 2; p += 2;
if (strncmp(p, tag, tagend - tag) == 0 && if(strncmp(p, tag, tagend - tag) == 0 && p[tagend - tag] == '>') {
p[tagend - tag] == '>') {
p++; p++;
fwrite(begin, sizeof(char), fwrite(begin, sizeof(char), p - begin + tagend - tag - 1, stdout);
p - begin + tagend - tag - 1, stdout);
return p - begin + tagend - tag - 1; return p - begin + tagend - tag - 1;
} }
} }
@ -239,12 +180,13 @@ int dohtml(const char *begin, const char *end, int newblock)
if(p) { if(p) {
fwrite(begin, sizeof(char), p - begin + 1, stdout); fwrite(begin, sizeof(char), p - begin + 1, stdout);
return p - begin + 1; return p - begin + 1;
} else }
else
return 0; return 0;
} }
int dolineprefix(const char *begin, const char *end, int newblock) int
{ dolineprefix(const char *begin, const char *end, int newblock) {
unsigned int i, j, l; unsigned int i, j, l;
char *buffer; char *buffer;
const char *p; const char *p;
@ -274,8 +216,7 @@ int dolineprefix(const char *begin, const char *end, int newblock)
/* Collect lines into buffer while they start with the prefix */ /* Collect lines into buffer while they start with the prefix */
j = 0; j = 0;
while ((strncmp(lineprefix[i].search, p, l) == 0) && while((strncmp(lineprefix[i].search, p, l) == 0) && p + l < end) {
p + l < end) {
p += l; p += l;
/* Special case for blockquotes: optional space after > */ /* Special case for blockquotes: optional space after > */
@ -284,7 +225,7 @@ int dolineprefix(const char *begin, const char *end, int newblock)
} }
while(p < end) { while(p < end) {
ADDC(buffer, j, *p); ADDC(buffer, j) = *p;
j++; j++;
if(*(p++) == '\n') if(*(p++) == '\n')
break; break;
@ -296,10 +237,9 @@ int dolineprefix(const char *begin, const char *end, int newblock)
j--; j--;
} }
ADDC(buffer, j, '\0'); ADDC(buffer, j) = '\0';
if(lineprefix[i].process) if(lineprefix[i].process)
process(buffer, buffer + strlen(buffer), process(buffer, buffer + strlen(buffer), lineprefix[i].process >= 2);
lineprefix[i].process >= 2);
else else
hprint(buffer, buffer + strlen(buffer)); hprint(buffer, buffer + strlen(buffer));
puts(lineprefix[i].after); puts(lineprefix[i].after);
@ -309,8 +249,8 @@ int dolineprefix(const char *begin, const char *end, int newblock)
return 0; return 0;
} }
int dolink(const char *begin, const char *end, int newblock) int
{ dolink(const char *begin, const char *end, int newblock) {
int img, len, sep, parens_depth = 1; int img, len, sep, parens_depth = 1;
const char *desc, *link, *p, *q, *descend, *linkend; const char *desc, *link, *p, *q, *descend, *linkend;
const char *title = NULL, *titleend = NULL; const char *title = NULL, *titleend = NULL;
@ -324,8 +264,7 @@ int dolink(const char *begin, const char *end, int newblock)
p = desc = begin + 1 + img; p = desc = begin + 1 + img;
if(!(p = strstr(desc, "](")) || p > end) if(!(p = strstr(desc, "](")) || p > end)
return 0; return 0;
for (q = strstr(desc, "!["); q && q < end && q < p; for(q = strstr(desc, "!["); q && q < end && q < p; q = strstr(q + 1, "!["))
q = strstr(q + 1, "!["))
if(!(p = strstr(p + 1, "](")) || p > end) if(!(p = strstr(p + 1, "](")) || p > end)
return 0; return 0;
descend = p; descend = p;
@ -348,16 +287,13 @@ int dolink(const char *begin, const char *end, int newblock)
sep = p[0]; /* separator: can be " or ' */ sep = p[0]; /* separator: can be " or ' */
title = p + 1; title = p + 1;
/* strip trailing whitespace */ /* strip trailing whitespace */
for (linkend = p; linkend > link && isspace(*(linkend - 1)); for(linkend = p; linkend > link && isspace(*(linkend - 1)); linkend--);
linkend--) for(titleend = q - 1; titleend > title && isspace(*(titleend)); titleend--);
;
for (titleend = q - 1; titleend > title && isspace(*(titleend));
titleend--)
;
if(*titleend != sep) { if(*titleend != sep) {
return 0; return 0;
} }
} else { }
else {
linkend = q; linkend = q;
} }
@ -380,7 +316,8 @@ int dolink(const char *begin, const char *end, int newblock)
fputs("\" ", stdout); fputs("\" ", stdout);
} }
fputs("/>", stdout); fputs("/>", stdout);
} else { }
else {
fputs("<a href=\"", stdout); fputs("<a href=\"", stdout);
hprint(link, linkend); hprint(link, linkend);
fputs("\"", stdout); fputs("\"", stdout);
@ -396,8 +333,8 @@ int dolink(const char *begin, const char *end, int newblock)
return len; return len;
} }
int dolist(const char *begin, const char *end, int newblock) int
{ dolist(const char *begin, const char *end, int newblock) {
unsigned int i, j, indent, run, ul, isblock; unsigned int i, j, indent, run, ul, isblock;
const char *p, *q; const char *p, *q;
char *buffer = NULL; char *buffer = NULL;
@ -416,16 +353,14 @@ int dolist(const char *begin, const char *end, int newblock)
marker = *p; marker = *p;
} else { } else {
ul = 0; ul = 0;
for (; p < end && *p >= '0' && *p <= '9'; p++) for(; p < end && *p >= '0' && *p <= '9'; p++);
;
if(p >= end || *p != '.') if(p >= end || *p != '.')
return 0; return 0;
} }
p++; p++;
if(p >= end || !(*p == ' ' || *p == '\t')) if(p >= end || !(*p == ' ' || *p == '\t'))
return 0; return 0;
for (p++; p != end && (*p == ' ' || *p == '\t'); p++) for(p++; p != end && (*p == ' ' || *p == '\t'); p++);
;
indent = p - q; indent = p - q;
buffer = ereallocz(buffer, BUFSIZ); buffer = ereallocz(buffer, BUFSIZ);
if(!newblock) if(!newblock)
@ -439,13 +374,9 @@ int dolist(const char *begin, const char *end, int newblock)
break; break;
else { else {
/* Handle empty lines */ /* Handle empty lines */
for (q = p + 1; for(q = p + 1; (*q == ' ' || *q == '\t') && q < end; q++);
(*q == ' ' || *q == '\t') &&
q < end;
q++)
;
if(*q == '\n') { if(*q == '\n') {
ADDC(buffer, i, '\0'); ADDC(buffer, i) = '\n';
i++; i++;
run = 0; run = 0;
isblock++; isblock++;
@ -457,10 +388,7 @@ int dolist(const char *begin, const char *end, int newblock)
if(ul && *q == marker) if(ul && *q == marker)
j = 1; j = 1;
else if(!ul) { else if(!ul) {
for (; q + j != end && q[j] >= '0' && for(; q + j != end && q[j] >= '0' && q[j] <= '9' && j < indent; j++);
q[j] <= '9' && j < indent;
j++)
;
if(q + j == end) if(q + j == end)
break; break;
if(j > 0 && q[j] == '.') if(j > 0 && q[j] == '.')
@ -469,12 +397,9 @@ int dolist(const char *begin, const char *end, int newblock)
j = 0; j = 0;
} }
if(q + indent < end) if(q + indent < end)
for (; (q[j] == ' ' || q[j] == '\t') && for(; (q[j] == ' ' || q[j] == '\t') && j < indent; j++);
j < indent;
j++)
;
if(j == indent) { if(j == indent) {
ADDC(buffer, i, '\n'); ADDC(buffer, i) = '\n';
i++; i++;
p += indent; p += indent;
run = 1; run = 1;
@ -482,27 +407,26 @@ int dolist(const char *begin, const char *end, int newblock)
p++; p++;
else else
break; break;
} else if (j < indent) }
else if (j < indent)
run = 0; run = 0;
} }
ADDC(buffer, i, *p); ADDC(buffer, i) = *p;
} }
ADDC(buffer, i, '\0'); ADDC(buffer, i) = '\0';
fputs("<li>", stdout); fputs("<li>", stdout);
process(buffer, buffer + i, process(buffer, buffer + i, isblock > 1 || (isblock == 1 && run));
isblock > 1 || (isblock == 1 && run));
fputs("</li>\n", stdout); fputs("</li>\n", stdout);
} }
fputs(ul ? "</ul>\n" : "</ol>\n", stdout); fputs(ul ? "</ul>\n" : "</ol>\n", stdout);
free(buffer); free(buffer);
p--; p--;
while (*(--p) == '\n') while(*(--p) == '\n');
;
return -(p - begin + 1); return -(p - begin + 1);
} }
int doparagraph(const char *begin, const char *end, int newblock) int
{ doparagraph(const char *begin, const char *end, int newblock) {
const char *p; const char *p;
if(!newblock) if(!newblock)
@ -518,8 +442,8 @@ int doparagraph(const char *begin, const char *end, int newblock)
return -(p - begin); return -(p - begin);
} }
int doreplace(const char *begin, const char *end, int newblock) int
{ doreplace(const char *begin, const char *end, int newblock) {
unsigned int i, l; unsigned int i, l;
for(i = 0; i < LENGTH(insert); i++) for(i = 0; i < LENGTH(insert); i++)
@ -537,8 +461,8 @@ int doreplace(const char *begin, const char *end, int newblock)
return 0; return 0;
} }
int doshortlink(const char *begin, const char *end, int newblock) int
{ doshortlink(const char *begin, const char *end, int newblock) {
const char *p, *c; const char *p, *c;
int ismail = 0; int ismail = 0;
@ -564,14 +488,14 @@ int doshortlink(const char *begin, const char *end, int newblock)
fputs("<a href=\"", stdout); fputs("<a href=\"", stdout);
if(ismail == 1) { if(ismail == 1) {
/* mailto: */ /* mailto: */
fputs("&#x6D;&#x61;i&#x6C;&#x74;&#x6F;:", fputs("&#x6D;&#x61;i&#x6C;&#x74;&#x6F;:", stdout);
stdout);
for(c = begin + 1; *c != '>'; c++) for(c = begin + 1; *c != '>'; c++)
fprintf(stdout, "&#%u;", *c); fprintf(stdout, "&#%u;", *c);
fputs("\">", stdout); fputs("\">", stdout);
for(c = begin + 1; *c != '>'; c++) for(c = begin + 1; *c != '>'; c++)
fprintf(stdout, "&#%u;", *c); fprintf(stdout, "&#%u;", *c);
} else { }
else {
hprint(begin + 1, p); hprint(begin + 1, p);
fputs("\">", stdout); fputs("\">", stdout);
hprint(begin + 1, p); hprint(begin + 1, p);
@ -583,15 +507,14 @@ int doshortlink(const char *begin, const char *end, int newblock)
return 0; return 0;
} }
int dosurround(const char *begin, const char *end, int newblock) int
{ dosurround(const char *begin, const char *end, int newblock) {
unsigned int i, l; unsigned int i, l;
const char *p, *start, *stop; const char *p, *start, *stop;
for(i = 0; i < LENGTH(surround); i++) { for(i = 0; i < LENGTH(surround); i++) {
l = strlen(surround[i].search); l = strlen(surround[i].search);
if (end - begin < 2 * l || if(end - begin < 2*l || strncmp(begin, surround[i].search, l) != 0)
strncmp(begin, surround[i].search, l) != 0)
continue; continue;
start = begin + l; start = begin + l;
p = start - 1; p = start - 1;
@ -622,24 +545,20 @@ int dosurround(const char *begin, const char *end, int newblock)
return 0; return 0;
} }
int dounderline(const char *begin, const char *end, int newblock) int
{ dounderline(const char *begin, const char *end, int newblock) {
unsigned int i, j, l; unsigned int i, j, l;
const char *p; const char *p;
if(!newblock) if(!newblock)
return 0; return 0;
p = begin; p = begin;
for (l = 0; p + l + 1 != end && p[l] != '\n'; l++) for(l = 0; p + l + 1 != end && p[l] != '\n'; l++);
;
p += l + 1; p += l + 1;
if(l == 0) if(l == 0)
return 0; return 0;
for(i = 0; i < LENGTH(underline); i++) { for(i = 0; i < LENGTH(underline); i++) {
for (j = 0; p + j != end && p[j] != '\n' && for(j = 0; p + j != end && p[j] != '\n' && p[j] == underline[i].search[0]; j++);
p[j] == underline[i].search[0];
j++)
;
if(j >= l) { if(j >= l) {
fputs(underline[i].before, stdout); fputs(underline[i].before, stdout);
if(underline[i].process) if(underline[i].process)
@ -653,8 +572,8 @@ int dounderline(const char *begin, const char *end, int newblock)
return 0; return 0;
} }
void *ereallocz(void *p, size_t size) void *
{ ereallocz(void *p, size_t size) {
void *res; void *res;
if(p) if(p)
res = realloc(p , size); res = realloc(p , size);
@ -666,8 +585,8 @@ void *ereallocz(void *p, size_t size)
return res; return res;
} }
void hprint(const char *begin, const char *end) void
{ hprint(const char *begin, const char *end) {
const char *p; const char *p;
for(p = begin; p != end; p++) { for(p = begin; p != end; p++) {
@ -684,10 +603,9 @@ void hprint(const char *begin, const char *end)
} }
} }
int process(const char *begin, const char *end, int newblock) void
{ process(const char *begin, const char *end, int newblock) {
const char *q; const char *p, *q;
const char *p;
int affected; int affected;
unsigned int i; unsigned int i;
@ -695,13 +613,11 @@ int process(const char *begin, const char *end, int newblock)
if(newblock) if(newblock)
while(*p == '\n') while(*p == '\n')
if(++p == end) if(++p == end)
return 1; return;
affected = 0; affected = 0;
for(i = 0; i < LENGTH(parsers) && !affected; i++) for(i = 0; i < LENGTH(parsers) && !affected; i++)
affected = parsers[i](p, end, newblock); affected = parsers[i](p, end, newblock);
p += abs(affected); p += abs(affected);
if (affected == -1)
return 0;
if(!affected) { if(!affected) {
if(nohtml) if(nohtml)
hprint(p, p + 1); hprint(p, p + 1);
@ -709,24 +625,22 @@ int process(const char *begin, const char *end, int newblock)
fputc(*p, stdout); fputc(*p, stdout);
p++; p++;
} }
for (q = p; q != end && *q == '\n'; q++) for(q = p; q != end && *q == '\n'; q++);
;
if(q == end) if(q == end)
return 1; return;
else if(p[0] == '\n' && p + 1 != end && p[1] == '\n') else if(p[0] == '\n' && p + 1 != end && p[1] == '\n')
newblock = 1; newblock = 1;
else else
newblock = affected < 0; newblock = affected < 0;
} }
return 1;
} }
int main(int argc, char *argv[]) int
{ main(int argc, char *argv[]) {
char *buffer = NULL; char *buffer = NULL;
const char *path = "STDIN"; int s, i;
int i; unsigned long len, bsize;
int ret = EXIT_SUCCESS; FILE *source = stdin;
for(i = 1; i < argc; i++) { for(i = 1; i < argc; i++) {
if(!strcmp("-v", argv[i])) if(!strcmp("-v", argv[i]))
@ -738,58 +652,26 @@ int main(int argc, char *argv[])
else if(!strcmp("--", argv[i])) { else if(!strcmp("--", argv[i])) {
i++; i++;
break; break;
} else
eprint("Usage %s [-n] [file]\n -n escape html strictly\n",
argv[0]);
} }
else
if (i < argc) { eprint("Usage %s [-n] [file]\n -n escape html strictly\n", argv[0]);
path = argv[i]; }
if(i < argc && !(source = fopen(argv[i], "r")))
off64_t len = get_file_size(path); eprint("Cannot open file `%s`\n",argv[i]);
if (len == -1) { bsize = 2 * BUFSIZ;
eprint("%s: %s: %s\n", argv[0], path, strerror(errno)); buffer = ereallocz(buffer, bsize);
ret = EXIT_FAILURE; len = 0;
goto exit; while((s = fread(buffer + len, 1, BUFSIZ, source))) {
len += s;
if(BUFSIZ + len + 1 > bsize) {
bsize += BUFSIZ;
if(!(buffer = realloc(buffer, bsize)))
eprint("realloc failed.");
} }
buffer = read_file(path, len);
if (!buffer) {
perror(PACKAGE);
ret = EXIT_FAILURE;
goto exit;
} }
buffer[len] = '\0'; buffer[len] = '\0';
process(buffer, buffer + len, 1); process(buffer, buffer + len, 1);
fclose(source);
free(buffer); free(buffer);
} else { return EXIT_SUCCESS;
size_t buffer_size = 1024 * CHARWIDTH;
buffer = calloc(buffer_size + CHARWIDTH, sizeof(char));
if (!buffer) {
perror(PACKAGE);
ret = EXIT_FAILURE;
goto exit;
}
size_t read_bytes;
while (1) {
read_bytes = read(STDIN_FILENO, buffer, buffer_size);
if (read_bytes <= 0) {
if (errno) {
perror(PACKAGE);
ret = EXIT_FAILURE;
}
free(buffer);
break;
}
buffer[read_bytes] = '\0';
if (!process(buffer, buffer + read_bytes, 1)) {
ret = EXIT_FAILURE;
free(buffer);
break;
}
}
}
exit:
return ret;
} }

1
smu.h
View file

@ -16,3 +16,4 @@ int smu_convert(FILE *out, FILE *in, int suppresshtml);
/** utility */ /** utility */
void eprint(const char *format, ...); void eprint(const char *format, ...);

View file

@ -47,11 +47,9 @@ list in list:
entity: &, <, > entity: &, <, >
code: code:
```
int powerof2(unsigned int n) { int powerof2(unsigned int n) {
return !((n - 1) & n) && n > 0; return !((n - 1) & n) && n > 0;
} }
```
links links
----- -----