mirror of https://github.com/MidnightCommander/mc
119 lines
1.8 KiB
C
119 lines
1.8 KiB
C
/* mfmt: sets bold and underline for mail files */
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/* (c) 1995 miguel de icaza */
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#include <stdio.h>
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enum states {
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header,
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definition,
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plain,
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newline,
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seen_f,
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seen_r,
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seen_o,
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header_new,
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seen_m
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};
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int
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main (void)
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{
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int c;
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int state = newline;
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int space_seen = 0;
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while ((c = getchar ()) != EOF){
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switch (state){
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case plain:
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if (c == '\n')
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state = newline;
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putchar (c);
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break;
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case newline:
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if (c == 'F')
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state = seen_f;
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else if (c == '\n')
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putchar ('\n');
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else {
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state = plain;
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putchar (c);
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}
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break;
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case seen_f:
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if (c == 'r')
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state = seen_r;
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else {
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printf ("F%c", c);
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state = plain;
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}
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break;
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case seen_r:
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if (c == 'o')
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state = seen_o;
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else {
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state = plain;
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printf ("Fr%c", c);
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}
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break;
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case seen_o:
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if (c == 'm'){
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state = seen_m;
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} else {
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state = plain;
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printf ("Fro%c", c);
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}
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break;
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case seen_m:
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if (c == ' '){
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state = definition;
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printf ("_\bF_\br_\bo_\bm ");
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} else {
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state = plain;
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printf ("From%c", c);
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}
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break;
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case header_new:
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space_seen = 0;
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if (c == ' ' || c == '\t') {
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state = definition;
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putchar (c);
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break;
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}
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if (c == '\n'){
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state = plain;
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putchar (c);
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break;
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}
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case header:
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if (c == '\n'){
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putchar (c);
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state = header_new;
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break;
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}
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printf ("_\b%c", c);
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if (c == ' ')
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space_seen = 1;
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if (c == ':' && !space_seen)
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state = definition;
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break;
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case definition:
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if (c == '\n'){
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putchar (c);
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state = header_new;
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break;
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}
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printf ("%c\b%c", c, c);
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break;
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}
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}
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return (0);
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}
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