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#include <ctype.h>
#include <err.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <wchar.h>
#include "util.h"
static time_t comparetime;
static char *line;
static size_t linesize;
/* format `len' columns of characters. If string is shorter pad the rest
* with characters `pad`. */
int
utf8pad(char *buf, size_t bufsiz, const char *s, size_t len, int pad)
{
wchar_t w;
size_t col = 0, i, slen, siz = 0;
int rl, wc;
if (!len)
return -1;
slen = strlen(s);
for (i = 0; i < slen && col < len + 1; i += rl) {
if ((rl = mbtowc(&w, &s[i], slen - i < 4 ? slen - i : 4)) <= 0)
break;
if ((wc = wcwidth(w)) == -1)
wc = 1;
col += wc;
if (col >= len && s[i + rl]) {
if (siz + 4 >= bufsiz)
return -1;
memcpy(&buf[siz], "\xe2\x80\xa6", 4);
return 0;
}
if (siz + rl + 1 >= bufsiz)
return -1;
memcpy(&buf[siz], &s[i], rl);
siz += rl;
buf[siz] = '\0';
}
len -= col;
if (siz + len + 1 >= bufsiz)
return -1;
memset(&buf[siz], pad, len);
siz += len;
buf[siz] = '\0';
return 0;
}
/* Escape characters in links in geomyidae .gph format */
void
gphlink(FILE *fp, const char *s, size_t len)
{
size_t i;
for (i = 0; *s && i < len; i++) {
switch (s[i]) {
case '\r': /* ignore CR */
case '\n': /* ignore LF */
break;
case '\t':
fputs(" ", fp);
break;
case '|': /* escape separators */
fputs("\\|", fp);
break;
default:
fputc(s[i], fp);
break;
}
}
}
static void
printfeed(FILE *fp, const char *feedname)
{
char *fields[FieldLast], buf[1024];
struct tm *tm;
time_t parsedtime;
ssize_t linelen;
size_t lc;
for (lc = 0; (linelen = getline(&line, &linesize, fp)) > 0; lc++) {
if (line[linelen - 1] == '\n')
line[--linelen] = '\0';
if (!parseline(line, fields))
break;
parsedtime = 0;
if (strtotime(fields[FieldUnixTimestamp], &parsedtime))
continue;
if (!(tm = localtime(&parsedtime)))
err(1, "localtime");
if (lc == 0 && feedname[0]) {
fputs("\n ", stdout);
utf8pad(buf, sizeof(buf), feedname, 77, ' ');
gphlink(stdout, buf, strlen(buf));
fputs("\n ", stdout);
memset(buf, '=', 77);
buf[78] = '\0';
puts(buf);
}
fputs("[h|", stdout);
if (parsedtime >= comparetime)
fputs("N ", stdout);
else
fputs(" ", stdout);
fprintf(stdout, "%04d-%02d-%02d %02d:%02d ",
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
tm->tm_hour, tm->tm_min);
utf8pad(buf, sizeof(buf), fields[FieldTitle], 59, ' ');
gphlink(stdout, buf, strlen(buf));
fputs("|URL:", stdout);
gphlink(stdout, fields[FieldLink], strlen(fields[FieldLink]));
fputs("|server|port]\n", stdout);
}
}
int
main(int argc, char *argv[])
{
FILE *fp;
char *name;
int i;
if (pledge("stdio rpath", NULL) == -1)
err(1, "pledge");
setlocale(LC_CTYPE, "");
if (pledge(argc == 1 ? "stdio" : "stdio rpath", NULL) == -1)
err(1, "pledge");
if ((comparetime = time(NULL)) == -1)
err(1, "time");
/* 1 day is old news */
comparetime -= 86400;
if (argc == 1) {
printfeed(stdin, "");
} else {
for (i = 1; i < argc; i++) {
if (!(fp = fopen(argv[i], "r")))
err(1, "fopen: %s", argv[i]);
name = ((name = strrchr(argv[i], '/'))) ? name + 1 : argv[i];
printfeed(fp, name);
if (ferror(fp))
err(1, "ferror: %s", argv[i]);
fclose(fp);
}
}
return 0;
}
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