Rewrite md2point in c and add minimal manpage

Signed-off-by: Christoph Lohmann <20h@r-36.net>
master
Anders Damsgaard 4 years ago committed by Christoph Lohmann
parent fd83f17fab
commit d8eed1a767

@ -1,11 +1,25 @@
PREFIX= /usr/local
bin/md2point: md2point.o
${CC} -o $@ md2point.o ${LDFLAGS}
.c.o:
${CC} -c ${CFLAGS} $<
install:
install -m755 bin/dir2point $(PREFIX)/bin/dir2point
install -m755 bin/md2point $(PREFIX)/bin/md2point
install -m755 bin/point2pdf $(PREFIX)/bin/point2pdf
install -m644 md2point.1 $(PREFIX)/share/man/man1/md2point.1
uninstall:
rm -f $(PREFIX)/bin/dir2point
rm -f $(PREFIX)/bin/md2point
rm -f $(PREFIX)/bin/point2pdf
rm -f $(PREFIX)/share/man/man1/md2point.1
clean:
rm -f bin/md2point
rm -f md2point.o
.PHONY: install uninstall clean

@ -0,0 +1,42 @@
.Dd $Mdocdate$
.Dt MD2POINT 1
.Os
.Sh NAME
.Nm md2point
.Nd converts markdown into catpoint presentation files
.Sh SYNOPSIS
.Nm
.Sh DESCRIPTION
The
.Nm
utility reads markdown from stdin and writes formatted text files
to the current directory. The output text files are intended for
use with catpoint. The output files are named in a consecutive
manner with the title in the file name.
.Sh MARKDOWN FORMAT
.Pp
Lines beginning with
.Em ##
are treated as slide titles, and serve as delimiters between output
slides.
.Pp
Lines beginning with
.Em %
are treated as comments, and are not reproduced in the output.
.Pp
Lines beginning with
.Em #pause
denote breaks within slides.
.Pp
Any other text and formatting is reproduced exactly in the output.
.Sh EXIT STATUS
.Nm
exits with 0 on success, and >0 if a a runtime error occurs.
.Sh SEE ALSO
.Xr catpoint
.Xr dir2point
.Sh AUTHORS
.An Anders Damsgaard Aq Mt anders@adamsgaard.dk ,
and
.An Christoph Lohmann Aq Mt 20h@r-36.net
(original implementation).

@ -0,0 +1,164 @@
#include <stdio.h>
#include <stdlib.h>
#include <err.h>
#include <string.h>
#define PATH_MAX 128
char buf[PATH_MAX];
/* from git://bitreich.org/utf8expr */
size_t
utf8strlen(char *s)
{
size_t i;
i = 0;
for (; s[0]; s++) {
if ((s[0] & 0xc0) != 0x80)
i++;
}
return i;
}
void
fprintunderline(FILE *fp, char *str, size_t linelen)
{
size_t i;
fprintf(fp, "\n %s\n ", str);
for (i=0; i<=utf8strlen(str); ++i)
fputs("=", fp);
fputs("\n\n", fp);
}
void
escapechars(char *s, size_t linelen)
{
size_t i;
for (i=0; i<linelen && *s != '\0'; (void)*s++, i++)
switch (*s) {
case '#':
case ' ':
case ' ':
case ':':
case '.':
case '(':
case ')':
case '/':
*s = '_';
break;
case '\n':
*s = '\0';
return;
default:
break;
}
}
void
fprintesc(FILE *fp, char *s, ssize_t len)
{
ssize_t i;
int intext;
intext = 0;
fputs(" ", fp);
for (i=0; i<len && s[i] != '\0'; i++)
switch (s[i]) {
case ' ':
fputc(' ', fp);
break;
case '\t':
fprintf(fp, " ");
break;
case '*':
if (!intext) {
fputc('o', fp);
break;
}
default:
intext = 1;
fputc(s[i], fp);
break;
}
fputs("\n", fp);
}
void
mkfilename(char *fname, char *str, size_t len, int i)
{
strlcpy(buf, str, len);
escapechars(buf, len);
snprintf(fname, len, "%.4d-%s.txt", i, buf);
}
void
copyfile(char *dst, char *src)
{
char c;
FILE *fsrc, *fdst;
if (strlen(src) < 1 || strlen(dst) < 1 ||
!(fsrc = fopen(src, "r")) || !(fdst = fopen(dst, "w")))
err(1, "copyfile: %s -> %s", src, dst);
while ((c = fgetc(fsrc)) != EOF)
fputc(c, fdst);
fclose(fsrc);
fclose(fdst);
}
int
main(int argc, char* argv[])
{
int i;
static char *line;
static size_t linesize;
ssize_t linelen;
char title[PATH_MAX], fname[PATH_MAX], fname_old[PATH_MAX];
FILE *fp;
fp = NULL;
title[0] = fname[0] = fname_old[0] = '\0';
i = 0;
while ((linelen = getline(&line, &linesize, stdin)) > 0) {
if (line[linelen-1] == '\n')
line[--linelen] = '\0';
if (linelen > 1 && line[0] == '#' && line[1] == '#') {
if (fp)
fclose(fp);
strlcpy(title, line+2, PATH_MAX);
mkfilename(fname, title, PATH_MAX, i++);
if (!(fp = fopen(fname, "w")))
err(1, "fopen: %s", fname);
if (linelen == 2)
fputs("\n", fp);
else
fprintunderline(fp, title, linelen);
} else if (linelen > 0 && line[0] == '%') {
continue;
} else if (linelen > 5 && !strncmp(line, "#pause", linelen)) {
if (fp)
fclose(fp);
strlcpy(fname_old, fname, PATH_MAX);
mkfilename(fname, title, PATH_MAX, i++);
copyfile(fname, fname_old);
if (strlen(fname) > 0 && !(fp = fopen(fname, "a")))
err(1, "fopen: %s", fname);
} else {
/* ignore text before first header */
if (fp)
fprintesc(fp, line, linelen);
}
}
free(line);
return 0;
}
Loading…
Cancel
Save