2 * mdp -- A command-line based markdown presentation tool.
3 * Copyright (C) 2014 Michael Goehler
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
22 #include <locale.h> // setlocale
30 fprintf(stderr, "%s", "Usage: mdp [OPTION]... [FILE]\n");
31 fprintf(stderr, "%s", "A command-line based markdown presentation tool.\n\n");
32 fprintf(stderr, "%s", " -d, --debug enable debug messages on STDERR\n");
33 fprintf(stderr, "%s", " add it multiple times to increases debug level\n");
34 fprintf(stderr, "%s", " -f, --nofade disable color fading in 256 color mode\n");
35 fprintf(stderr, "%s", " -h, --help display this help and exit\n");
36 fprintf(stderr, "%s", " -i, --invert swap black and white color\n");
37 fprintf(stderr, "%s", " -t, --notrans disable transparency in transparent terminal\n");
38 fprintf(stderr, "%s", "\nWith no FILE, or when FILE is -, read standard input.\n\n");
43 printf("mdp %d.%d.%d\n", MDP_VER_MAJOR, MDP_VER_MINOR, MDP_VER_REVISION);
44 printf("Copyright (C) 2014 Michael Goehler\n");
45 printf("License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.\n");
46 printf("This is free software: you are free to change and redistribute it.\n");
47 printf("There is NO WARRANTY, to the extent permitted by law.\n");
48 printf("\nWritten by Michael Goehler and others, see <https://github.com/visit1985/mdp/blob/master/AUTHORS>.\n");
52 int main(int argc, char *argv[]) {
53 int notrans = 0; // disable transparency
54 int nofade = 0; // disable fading
55 int invert = 0; // invert color (black on white)
56 int reload = 0; // reload page N (0 means no reload)
57 int noreload = 1; // reload disabled until we know input is a file
59 // define command-line options
60 struct option longopts[] = {
61 { "debug", no_argument, 0, 'd' },
62 { "nofade", no_argument, 0, 'f' },
63 { "help", no_argument, 0, 'h' },
64 { "invert", no_argument, 0, 'i' },
65 { "notrans", no_argument, 0, 't' },
66 { "version", no_argument, 0, 'v' },
70 // parse command-line options
72 while ((opt = getopt_long(argc, argv, ":dfhitv", longopts, NULL)) != -1) {
74 case 'd': debug += 1; break;
75 case 'f': nofade = 1; break;
76 case 'h': usage(); break;
77 case 'i': invert = 1; break;
78 case 't': notrans = 1; break;
79 case 'v': version(); break;
80 case ':': fprintf(stderr, "%s: '%c' requires an argument\n", argv[0], optopt); usage(); break;
82 default : fprintf(stderr, "%s: option '%c' is invalid\n", argv[0], optopt); usage(); break;
86 // set locale to read and display UTF-8 correctly in ncurses
87 setlocale(LC_CTYPE, "en_US.UTF8");
89 // open file or set input to STDIN
95 } while(++optind < argc);
97 if(!strcmp(file, "-")) {
100 input = fopen(file,"r");
102 fprintf(stderr, "%s: %s: %s\n", argv[0], file, strerror(errno));
105 // enable reload because input is a file
115 // reopen input file on reload
116 if(noreload == 0 && reload > 0) {
118 input = fopen(file,"r");
120 fprintf(stderr, "%s: %s: %s\n", argv[0], file, strerror(errno));
124 fprintf(stderr, "%s: %s\n", argv[0], "no input file");
129 // load deck object from input
131 deck = markdown_load(input);
136 // replace stdin with current tty if input was a pipe
137 // if input was a pipe reload is disabled, so we simply check that
139 input = freopen("/dev/tty", "rw", stdin);
141 fprintf(stderr, "%s: %s: %s\n", argv[0], "/dev/tty", strerror(errno));
147 markdown_debug(deck, debug);
150 reload = ncurses_display(deck, notrans, nofade, invert, reload, noreload);
154 // reload if supported and requested
155 } while(noreload == 0 && reload > 0);