tttml.c - tttml - converters for a simpler syntax than markdown
HTML git clone git://bitreich.org/tttml git://enlrupgkhuxnvlhsf6lc3fziv5h2hhfrinws65d7roiv6bfj7d652fid.onion/tttml
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tttml.c (1298B)
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1 #include <string.h>
2 #include <stdio.h>
3 #include <ctype.h>
4
5 #define WORD_MAX 1024
6 #define MIN(x, y) ((x) < (y) ? (x) : (y))
7
8 /*
9 * Put the character c to stdout, and if the line is too long, insert
10 * a newline. If c == EOF, flush the last word out of fmtc's static
11 * buffer.
12 *
13 * It preserve the double space after a punctuation mark [.!?] if any.
14 */
15 int
16 fmtc(char c, char *prefix, int max)
17 {
18 static int pos = 0, nspaces = 0, wlen = 0, was_space = 1, was_punct = 0, first = 1;
19 static char word[WORD_MAX], *w = word;
20
21 if (c != ' ' && c != '\n' && c != EOF) {
22 if (wlen + 1 < WORD_MAX) {
23 *w++ = c;
24 wlen++;
25 }
26 was_space = 0;
27 was_punct = !!strchr(".!?", c);
28
29 } else {
30 if (!was_space) {
31 was_space = 1;
32
33 if (pos + nspaces + wlen > max) {
34 pos = strlen(prefix);
35 fputc('\n', stdout);
36 fputs(prefix, stdout);
37 } else if (!first) {
38 pos += nspaces;
39 while (nspaces-- > 0)
40 fputc(' ', stdout);
41 }
42
43 pos += wlen;
44 word[wlen] = '\0';
45 fputs(word, stdout);
46
47 w = word;
48 wlen = 0;
49 nspaces = 1;
50 } else {
51 nspaces = was_punct ? 2 : 1;
52 }
53
54 if (c == EOF)
55 fputc('\n', stdout);
56
57 first = 0;
58 }
59
60 return c;
61 }
62
63 int
64 main(void)
65 {
66 int c;
67 char *prefix;
68
69 prefix = " |";
70
71 fputs(prefix, stdout);
72 while (fmtc(fgetc(stdin), prefix, 80) != EOF);
73 }