tenno/scq
1
0
Fork 0
Code Issues Releases 2 Activity

rewriting dohtml, adding docomment, rewriting arg-loop.

Browse source
This commit is contained in:
Enno Boland (Gottox) 2008-07-01 22:01:33 +02:00
parent 3584331433
commit 5fff5fdbe8
2 changed files with 108 additions and 95 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

195
smu.c
View file

@ -7,10 +7,10 @@
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include <ctype.h>
#define BUFFERSIZE 512
#define LENGTH(x) sizeof(x)/sizeof(x[0]) #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] #define ADDC(b,i) if(i % BUFSIZ == 0) { b = realloc(b, (i + BUFSIZ) * sizeof(b)); if(!b) eprint("Malloc failed."); } b[i]
typedef int (*Parser)(const char *, const char *, int); typedef int (*Parser)(const char *, const char *, int);
typedef struct { typedef struct {
@ -20,6 +20,7 @@ typedef struct {
} Tag; } Tag;
static int doamp(const char *begin, const char *end, int newblock); /* Parser for & */ static int doamp(const char *begin, const char *end, int newblock); /* Parser for & */
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 dogtlt(const char *begin, const char *end, int newblock); /* Parser for < and > */
static int dohtml(const char *begin, const char *end, int newblock); /* Parser for html */ static int dohtml(const char *begin, const char *end, int newblock); /* Parser for html */
static int dolineprefix(const char *begin, const char *end, int newblock);/* Parser for line prefix tags */ static int dolineprefix(const char *begin, const char *end, int newblock);/* Parser for line prefix tags */
@ -32,14 +33,12 @@ static int dosurround(const char *begin, const char *end, int newblock); /* Par
static int dounderline(const char *begin, const char *end, int newblock); /* Parser for underline tags */ static int dounderline(const char *begin, const char *end, int newblock); /* Parser for underline tags */
static void hprint(const char *begin, const char *end); /* escapes HTML and prints it to output */ static void hprint(const char *begin, const char *end); /* escapes HTML and prints it to output */
static void process(const char *begin, const char *end, int isblock); /* Processes range between begin and end. */ static void process(const char *begin, const char *end, int isblock); /* Processes range between begin and end. */
static int convert(FILE *out, FILE *in, int suppresshtml);
/* list of parsers */ /* list of parsers */
static Parser parsers[] = { dounderline, dohtml, dolineprefix, dolist, static Parser parsers[] = { dounderline, dohtml, docomment, dolineprefix,
doparagraph, dogtlt, dosurround, dolink, dolist, doparagraph, dogtlt, dosurround, dolink,
doshortlink, doamp, doreplace }; doshortlink, doamp, doreplace };
static FILE *output; static int nohtml = 0;
static int nohtml = 1;
static Tag lineprefix[] = { static Tag lineprefix[] = {
{ " ", 0, "<pre><code>", "</code></pre>" }, { " ", 0, "<pre><code>", "</code></pre>" },
@ -113,7 +112,7 @@ doamp(const char *begin, const char *end, int newblock) {
if(p == end || *p == ';') if(p == end || *p == ';')
return 0; return 0;
} }
fputs("&amp;", output); fputs("&amp;", stdout);
return 1; return 1;
} }
@ -129,41 +128,59 @@ dogtlt(const char *begin, const char *end, int newblock) {
return 0; return 0;
c = begin[brpos ? 0 : 1]; c = begin[brpos ? 0 : 1];
if(!brpos && (c < 'a' || c > 'z') && (c < 'A' || c > 'Z')) { if(!brpos && (c < 'a' || c > 'z') && (c < 'A' || c > 'Z')) {
fputs("&lt;", output); 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(output, "%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) {
char *p;
if(strncmp("<!--", begin, 4))
return 0;
p = strstr(begin, "-->");
if(!p || p + 3 >= end)
return 0;
return (p + 3 - begin) * (newblock ? -1 : 1);
}
int int
dohtml(const char *begin, const char *end, int newblock) { dohtml(const char *begin, const char *end, int newblock) {
const char *p, *tag, *tagend; const char *p, *tag, *tagend;
if(nohtml || !newblock || *begin == '\n' || begin + 2 >= end) if(nohtml || begin + 2 >= end)
return 0; return 0;
p = begin; p = begin;
if(p[1] == '\n') if(p[0] != '<' || !isalpha(p[1]))
p++; return 0;
if(p[1] != '<' || strchr(" /\n\t\\", p[2])) p++;
tag = p;
for(; isalnum(*p) && p < end; p++);
if(p > end || tag == tagend)
return 0; return 0;
tag = p + 2;
p += 2;
for(; !strchr(" >", *p); p++);
tagend = p; tagend = p;
while((p = strstr(p, "\n</")) && p < end) { while((p = strstr(p, "</")) && p < end) {
p += 3; p += 2;
if(strncmp(p, tag, tagend - tag) == 0 && p[tagend - tag] == '>') { if(strncmp(p, tag, tagend - tag) == 0 && p[tagend - tag] == '>') {
p++; p++;
fwrite(begin, sizeof(char), p - begin + tagend - tag, output); fwrite(begin, sizeof(char), p - begin + tagend - tag + 1, stdout);
puts("\n"); return p - begin + tagend - tag + 1;
return -(p - begin + tagend - tag);
} }
} }
return 0; p = strchr(tagend, '>');
if(p) {
fwrite(begin, sizeof(char), p - begin + 2, stdout);
return p - begin + 2;
}
else
return 0;
} }
int int
@ -185,13 +202,13 @@ dolineprefix(const char *begin, const char *end, int newblock) {
if(strncmp(lineprefix[i].search, p, l)) if(strncmp(lineprefix[i].search, p, l))
continue; continue;
if(*begin == '\n') if(*begin == '\n')
fputc('\n', output); fputc('\n', stdout);
fputs(lineprefix[i].before, output); fputs(lineprefix[i].before, stdout);
if(lineprefix[i].search[l-1] == '\n') { if(lineprefix[i].search[l-1] == '\n') {
fputc('\n', output); fputc('\n', stdout);
return l; return l;
} }
if(!(buffer = malloc(BUFFERSIZE))) if(!(buffer = malloc(BUFSIZ)))
eprint("Malloc failed."); eprint("Malloc failed.");
buffer[0] = '\0'; buffer[0] = '\0';
for(j = 0, p += l; p < end; p++, j++) { for(j = 0, p += l; p < end; p++, j++) {
@ -237,18 +254,18 @@ dolink(const char *begin, const char *end, int newblock) {
return 0; return 0;
linkend = p; linkend = p;
if(img) { if(img) {
fputs("<img src=\"", output); fputs("<img src=\"", stdout);
hprint(link, linkend); hprint(link, linkend);
fputs("\" alt=\"", output); fputs("\" alt=\"", stdout);
hprint(desc, descend); hprint(desc, descend);
fputs("\" />", output); fputs("\" />", stdout);
} }
else { else {
fputs("<a href=\"", output); fputs("<a href=\"", stdout);
hprint(link, linkend); hprint(link, linkend);
fputs("\">", output); fputs("\">", stdout);
process(desc, descend, 0); process(desc, descend, 0);
fputs("</a>", output); fputs("</a>", stdout);
} }
return p + 1 - begin; return p + 1 - begin;
} }
@ -280,11 +297,11 @@ dolist(const char *begin, const char *end, int newblock) {
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;
if(!(buffer = malloc(BUFFERSIZE))) if(!(buffer = malloc(BUFSIZ)))
eprint("Malloc failed."); eprint("Malloc failed.");
if(!newblock) if(!newblock)
fputc('\n', output); fputc('\n', stdout);
fputs(ul ? "<ul>\n" : "<ol>\n", output); fputs(ul ? "<ul>\n" : "<ol>\n", stdout);
run = 1; run = 1;
for(; p < end && run; p++) { for(; p < end && run; p++) {
for(i = 0; p < end && run; p++, i++) { for(i = 0; p < end && run; p++, i++) {
@ -327,11 +344,11 @@ dolist(const char *begin, const char *end, int newblock) {
ADDC(buffer, i) = *p; ADDC(buffer, i) = *p;
} }
ADDC(buffer, i) = '\0'; ADDC(buffer, i) = '\0';
fputs("<li>", output); fputs("<li>", stdout);
process(buffer, buffer + i, isblock > 1 || (isblock == 1 && run)); process(buffer, buffer + i, isblock > 1 || (isblock == 1 && run));
fputs("</li>\n", output); fputs("</li>\n", stdout);
} }
fputs(ul ? "</ul>\n" : "</ol>\n", output); fputs(ul ? "</ul>\n" : "</ol>\n", stdout);
free(buffer); free(buffer);
p--; p--;
while(*(--p) == '\n'); while(*(--p) == '\n');
@ -349,9 +366,9 @@ doparagraph(const char *begin, const char *end, int newblock) {
p = end; p = end;
if(p - begin <= 1) if(p - begin <= 1)
return 0; return 0;
fputs("<p>\n", output); fputs("<p>\n", stdout);
process(begin, p, 0); process(begin, p, 0);
fputs("</p>\n", output); fputs("</p>\n", stdout);
return -(p - begin); return -(p - begin);
} }
@ -361,13 +378,13 @@ doreplace(const char *begin, const char *end, int newblock) {
for(i = 0; i < LENGTH(insert); i++) for(i = 0; i < LENGTH(insert); i++)
if(strncmp(insert[i][0], begin, strlen(insert[i][0])) == 0) if(strncmp(insert[i][0], begin, strlen(insert[i][0])) == 0)
fputs(insert[i][1], output); fputs(insert[i][1], stdout);
for(i = 0; i < LENGTH(replace); i++) { for(i = 0; i < LENGTH(replace); i++) {
l = strlen(replace[i][0]); l = strlen(replace[i][0]);
if(end - begin < l) if(end - begin < l)
continue; continue;
if(strncmp(replace[i][0], begin, l) == 0) { if(strncmp(replace[i][0], begin, l) == 0) {
fputs(replace[i][1], output); fputs(replace[i][1], stdout);
return l; return l;
} }
} }
@ -398,22 +415,22 @@ doshortlink(const char *begin, const char *end, int newblock) {
case '>': case '>':
if(ismail == 0) if(ismail == 0)
return 0; return 0;
fputs("<a href=\"", output); fputs("<a href=\"", stdout);
if(ismail == 1) { if(ismail == 1) {
/* mailto: */ /* mailto: */
fputs("&#x6D;&#x61;i&#x6C;&#x74;&#x6F;:", output); fputs("&#x6D;&#x61;i&#x6C;&#x74;&#x6F;:", stdout);
for(c = begin + 1; *c != '>'; c++) for(c = begin + 1; *c != '>'; c++)
fprintf(output, "&#%u;", *c); fprintf(stdout, "&#%u;", *c);
fputs("\">", output); fputs("\">", stdout);
for(c = begin + 1; *c != '>'; c++) for(c = begin + 1; *c != '>'; c++)
fprintf(output, "&#%u;", *c); fprintf(stdout, "&#%u;", *c);
} }
else { else {
hprint(begin + 1, p); hprint(begin + 1, p);
fputs("\">", output); fputs("\">", stdout);
hprint(begin + 1, p); hprint(begin + 1, p);
} }
fputs("</a>", output); fputs("</a>", stdout);
return p - begin + 1; return p - begin + 1;
} }
} }
@ -437,12 +454,12 @@ dosurround(const char *begin, const char *end, int newblock) {
if(!p || p >= end || if(!p || p >= end ||
!(stop = strstr(start, surround[i].search)) || stop >= end) !(stop = strstr(start, surround[i].search)) || stop >= end)
continue; continue;
fputs(surround[i].before, output); fputs(surround[i].before, stdout);
if(surround[i].process) if(surround[i].process)
process(start, stop, 0); process(start, stop, 0);
else else
hprint(start, stop); hprint(start, stop);
fputs(surround[i].after, output); fputs(surround[i].after, stdout);
return stop - begin + l; return stop - begin + l;
} }
return 0; return 0;
@ -463,12 +480,12 @@ dounderline(const char *begin, const char *end, int newblock) {
for(i = 0; i < LENGTH(underline); i++) { for(i = 0; i < LENGTH(underline); i++) {
for(j = 0; p + j != end && p[j] != '\n' && p[j] == underline[i].search[0]; j++); for(j = 0; p + j != end && p[j] != '\n' && p[j] == underline[i].search[0]; j++);
if(j >= l) { if(j >= l) {
fputs(underline[i].before, output); fputs(underline[i].before, stdout);
if(underline[i].process) if(underline[i].process)
process(begin, begin + l, 0); process(begin, begin + l, 0);
else else
hprint(begin, begin + l); hprint(begin, begin + l);
fputs(underline[i].after, output); fputs(underline[i].after, stdout);
return -(j + p - begin); return -(j + p - begin);
} }
} }
@ -481,15 +498,15 @@ hprint(const char *begin, const char *end) {
for(p = begin; p != end; p++) { for(p = begin; p != end; p++) {
if(*p == '&') if(*p == '&')
fputs("&amp;", output); fputs("&amp;", stdout);
else if(*p == '"') else if(*p == '"')
fputs("&quot;", output); fputs("&quot;", stdout);
else if(*p == '>') else if(*p == '>')
fputs("&gt;", output); fputs("&gt;", stdout);
else if(*p == '<') else if(*p == '<')
fputs("&lt;", output); fputs("&lt;", stdout);
else else
fputc(*p, output); fputc(*p, stdout);
} }
} }
@ -512,7 +529,7 @@ process(const char *begin, const char *end, int newblock) {
if(nohtml) if(nohtml)
hprint(p, p + 1); hprint(p, p + 1);
else else
fputc(*p, output); fputc(*p, stdout);
p++; p++;
} }
for(q = p; q != end && *q == '\n'; q++); for(q = p; q != end && *q == '\n'; q++);
@ -526,53 +543,43 @@ process(const char *begin, const char *end, int newblock) {
} }
int int
convert(FILE *out, FILE *in, int suppresshtml) { main(int argc, char *argv[]) {
char *buffer; char *buffer;
int s; int s, i;
unsigned long len, bsize; unsigned long len, bsize;
FILE *source = stdin;
nohtml = suppresshtml; for(i = 1; i < argc; i++) {
output = out; if(!strcmp("-v", argv[i]))
eprint("simple markup %s (C) Enno Boland\n",VERSION);
bsize = 2 * BUFFERSIZE; else if(!strcmp("-n", argv[i]))
nohtml = 1;
else if(argv[i][0] != '-')
break;
else if(!strcmp("--", argv[i])) {
i++;
break;
}
else
eprint("Usage %s [-n] [file]\n -n escape html strictly\n", argv[0]);
}
if(i < argc && !(source = fopen(argv[i], "r")))
eprint("Cannot open file `%s`\n",argv[i]);
bsize = 2 * BUFSIZ;
if(!(buffer = malloc(bsize))) if(!(buffer = malloc(bsize)))
eprint("Malloc failed."); eprint("Malloc failed.");
len = 0; len = 0;
while((s = fread(buffer + len, 1, BUFFERSIZE, in))) { while((s = fread(buffer + len, 1, BUFSIZ, source))) {
len += s; len += s;
if(BUFFERSIZE + len + 1 > bsize) { if(BUFSIZ + len + 1 > bsize) {
bsize += BUFFERSIZE; bsize += BUFSIZ;
if(!(buffer = realloc(buffer, bsize))) if(!(buffer = realloc(buffer, bsize)))
eprint("Malloc failed."); eprint("Malloc failed.");
} }
} }
buffer[len] = '\0'; buffer[len] = '\0';
process(buffer, buffer + len, 1); process(buffer, buffer + len, 1);
fclose(source);
free(buffer); free(buffer);
return EXIT_SUCCESS; return EXIT_SUCCESS;
} }
int
main(int argc, char *argv[]) {
int i, no = 0;
FILE *in = stdin;
/* command line args */
for(i = 1; i < argc; i++)
if(!strcmp(argv[i], "-v"))
eprint("simple markup %s (C) Enno Boland\n",VERSION);
else if(!strcmp(argv[i], "-n"))
no = !no;
else if(argv[i][0] == '-')
eprint("Usage %s [-n] [file ...]\n -n toggle escape html strictly\n", argv[0]);
else {
if(!(in = fopen(argv[i], "r")))
eprint("Cannot open file `%s`\n",argv[i]);
convert(stdout, in, no);
fclose(in);
}
if(in == stdin)
convert(stdout, in, no);
return EXIT_SUCCESS;
}

6
testdoc
View file

@ -52,3 +52,9 @@ links
[suckless](http://suckless.org) [suckless](http://suckless.org)
inline html
-----------
<center>
ABC
</center>