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#include <stdio.h>
#include <string.h>
#define BUFSIZE 4096
#define html(s) fputs(s,stdout)
#define getbuf() fgets(buf,BUFSIZE,stdin)
#define xmlput(n)\
for(pos = n; buf[pos] != '\n'; pos++) {\
switch(buf[pos]) {\
default: putchar(buf[pos]); break;\
case '>' : html(">"); break;\
case '<' : html("<"); break;\
case '&' : html("&"); break;\
case '\'': html("'"); break;\
case '"' : html("""); break;\
}\
}
int main(void)
{
char buf[BUFSIZE];
int pos, list_state = 0;
html(
"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
"<!DOCTYPE html PUBLIC ""\"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\n"
"<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" lang=\"en\">\n"
"<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\"/>\n"
"<link rel=\"stylesheet\" type=\"text/css\" href=\"/style.css\"/>\n"
"<title></title></head><body>\n"
);
while (getbuf() != NULL)
{
if (!strncmp(buf,"###",3)) {
html("<h3>"); xmlput(4); html("</h3>");
} else if (!strncmp(buf,"##",2)) {
html("<h2>"); xmlput(3); html("</h2>");
} else if (buf[0] == '#') {
html("<h1>"); xmlput(2); html("</h1>");
}
else if (buf[0] == '>') {
fputs("<p><blockquote>",stdout); xmlput(2);
fputs("</blockquote></p>\n",stdout);
}
else if (buf[0] == '*') {
if (list_state == 0) html("<ul>\n");
html("<li>"); xmlput(2); html("</li>\n");
list_state = 1;
} else if (list_state == 1) {
html("</ul>\n");
list_state = 0;
}
else if (!strncmp(buf,"=>",2)) {
html("<p><a href=\"");
for (pos = 3; buf[pos] != '.' && buf[pos] != ' ';)
putchar(buf[pos++]);
if (buf[pos] == '.') {
int i = 0; char suffix[12];
while (buf[pos] != ' ')
suffix[i++] = buf[pos++];
suffix[i] = '\0';
if (!strncmp(suffix,".gmi",4)) html(".html");
else html(suffix);
} html("\">"); xmlput(pos+1); html("</a></p>\n");
}
else if (!strncmp(buf,"```",3)) {
getbuf(); html("<pre><code>");
while (strncmp(buf,"```",3)) {
xmlput(0); putchar('\n'); getbuf();
} html("</code></pre>\n");
} else { html("<p>"); xmlput(0); html("</p>\n"); }
} html("</body>"); html("</html>");
}
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