/*
* mdp -- A command-line based markdown presentation tool.
- * Copyright (C) 2014 Michael Goehler
+ * Copyright (C) 2015 Michael Goehler
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
#include <errno.h>
#include <getopt.h>
+#include <locale.h> // setlocale
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void usage() {
fprintf(stderr, "%s", "Usage: mdp [OPTION]... [FILE]\n");
fprintf(stderr, "%s", "A command-line based markdown presentation tool.\n\n");
- fprintf(stderr, "%s", " -d, --debug enable debug messages on STDERR\n");
- fprintf(stderr, "%s", " add it multiple times to increases debug level\n");
- fprintf(stderr, "%s", " -f, --nofade disable color fading in 256 color mode\n");
- fprintf(stderr, "%s", " -h, --help display this help and exit\n");
- fprintf(stderr, "%s", " -i, --invert swap black and white color\n");
- fprintf(stderr, "%s", " -t, --notrans disable transparency in transparent terminal\n");
+ fprintf(stderr, "%s", " -d, --debug enable debug messages on STDERR\n");
+ fprintf(stderr, "%s", " add it multiple times to increases debug level\n");
+ fprintf(stderr, "%s", " -f, --nofade disable color fading in 256 color mode\n");
+ fprintf(stderr, "%s", " -h, --help display this help and exit\n");
+ fprintf(stderr, "%s", " -i, --invert swap black and white color\n");
+ fprintf(stderr, "%s", " -t, --notrans disable transparency in transparent terminal\n");
+ fprintf(stderr, "%s", " -s, --noslidenum do not show slide number at the bottom\n");
+ fprintf(stderr, "%s", " -v, --version display the version number and license\n");
+ fprintf(stderr, "%s", " -x, --noslidemax show slide number, but not total number of slides\n");
fprintf(stderr, "%s", "\nWith no FILE, or when FILE is -, read standard input.\n\n");
exit(EXIT_FAILURE);
}
void version() {
printf("mdp %d.%d.%d\n", MDP_VER_MAJOR, MDP_VER_MINOR, MDP_VER_REVISION);
- printf("Copyright (C) 2014 Michael Goehler\n");
+ printf("Copyright (C) 2015 Michael Goehler\n");
printf("License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.\n");
printf("This is free software: you are free to change and redistribute it.\n");
printf("There is NO WARRANTY, to the extent permitted by law.\n");
}
int main(int argc, char *argv[]) {
- int notrans = 0;
- int nofade = 0;
- int invert = 0;
+ int notrans = 0; // disable transparency
+ int nofade = 0; // disable fading
+ int invert = 0; // invert color (black on white)
+ int reload = 0; // reload page N (0 means no reload)
+ int noreload = 1; // reload disabled until we know input is a file
+ int slidenum = 2; // 0:don't show; 1:show #; 2:show #/#
// define command-line options
struct option longopts[] = {
{ "invert", no_argument, 0, 'i' },
{ "notrans", no_argument, 0, 't' },
{ "version", no_argument, 0, 'v' },
+ { "noslidenum", no_argument, 0, 's' },
+ { "noslidemax", no_argument, 0, 'x' },
{ 0, 0, 0, 0 }
};
// parse command-line options
int opt, debug = 0;
- while ((opt = getopt_long(argc, argv, ":dfhitv", longopts, NULL)) != -1) {
+ while ((opt = getopt_long(argc, argv, ":dfhitvsx", longopts, NULL)) != -1) {
switch(opt) {
case 'd': debug += 1; break;
case 'f': nofade = 1; break;
case 'i': invert = 1; break;
case 't': notrans = 1; break;
case 'v': version(); break;
+ case 's': slidenum = 0; break;
+ case 'x': slidenum = 1; break;
case ':': fprintf(stderr, "%s: '%c' requires an argument\n", argv[0], optopt); usage(); break;
case '?':
default : fprintf(stderr, "%s: option '%c' is invalid\n", argv[0], optopt); usage(); break;
}
}
+ // set locale to that of the environment, so that ncurses properly renders
+ // UTF-8 characters if the system supports it
+ setlocale(LC_CTYPE, "");
+
// open file or set input to STDIN
- char *file;
+ char *file = NULL;
FILE *input;
if (optind < argc) {
do {
fprintf(stderr, "%s: %s: %s\n", argv[0], file, strerror(errno));
exit(EXIT_FAILURE);
}
+ // enable reload because input is a file
+ noreload = 0;
}
} else {
input = stdin;
}
- // load deck object from input
- deck_t *deck;
- deck = markdown_load(input);
+ // reload loop
+ do {
+
+ // reopen input file on reload
+ if(noreload == 0 && reload > 0) {
+ if(file) {
+ input = fopen(file,"r");
+ if(!input) {
+ fprintf(stderr, "%s: %s: %s\n", argv[0], file, strerror(errno));
+ exit(EXIT_FAILURE);
+ }
+ } else {
+ fprintf(stderr, "%s: %s\n", argv[0], "no input file");
+ exit(EXIT_FAILURE);
+ }
+ }
+
+ // load deck object from input
+ deck_t *deck;
+ deck = markdown_load(input);
+
+ // close file
+ fclose(input);
- // close file
- fclose(input);
+ // replace stdin with current tty if input was a pipe
+ // if input was a pipe reload is disabled, so we simply check that
+ if(noreload == 1) {
+ input = freopen("/dev/tty", "rw", stdin);
+ if(!input) {
+ fprintf(stderr, "%s: %s: %s\n", argv[0], "/dev/tty", strerror(errno));
+ exit(EXIT_FAILURE);
+ }
+ }
- // replace stdin with current tty if input was a pipe
- if(input == stdin) {
- input = freopen("/dev/tty", "rw", stdin);
- if(!input) {
- fprintf(stderr, "%s: %s: %s\n", argv[0], "/dev/tty", strerror(errno));
- exit(EXIT_FAILURE);
+ if(debug > 0) {
+ markdown_debug(deck, debug);
}
- }
- if(debug > 0) {
- markdown_debug(deck, debug);
- }
+ reload = ncurses_display(deck, notrans, nofade, invert, reload, noreload, slidenum);
+
+ free_deck(deck);
- ncurses_display(deck, notrans, nofade, invert);
+ // reload if supported and requested
+ } while(noreload == 0 && reload > 0);
- return(EXIT_SUCCESS);
+ return EXIT_SUCCESS;
}
