diff options
| -rw-r--r-- | out.c | 192 | ||||
| -rw-r--r-- | out.h | 12 |
2 files changed, 204 insertions, 0 deletions
@@ -166,3 +166,195 @@ time2a(time_t t, char *dst, size_t sz) (void)strftime(p, sz, "%Y", &tm); } + +/* Returns length of parsed string. */ +int +a2roffdeco(enum roffdeco *d, + const char **word, size_t *sz) +{ + int j, type, sv, t, lim; + const char *wp; + + *d = DECO_NONE; + + wp = *word; + type = 1; + + switch (*wp) { + case ('\0'): + return(0); + + case ('('): + wp++; + if ('\0' == *wp) + return(1); + if ('\0' == *(wp + 1)) + return(2); + + *d = DECO_SPECIAL; + *sz = 2; + *word = wp; + return(3); + + case ('*'): + wp++; + + switch (*wp) { + case ('\0'): + return(1); + + case ('('): + wp++; + if ('\0' == *wp) + return(2); + if ('\0' == *(wp + 1)) + return(3); + + *d = DECO_RESERVED; + *sz = 2; + *word = wp; + return(4); + + case ('['): + type = 0; + break; + + default: + *d = DECO_RESERVED; + *sz = 1; + *word = wp; + return(3); + } + break; + +#if 0 + case ('s'): + wp++; + + /* This closely follows mandoc_special(). */ + if ('\0' == *wp) + return(1); + + t = 0; + lim = 1; + + if (*wp == '\'') { + lim = 0; + t = 1; + ++wp; + } else if (*wp == '[') { + lim = 0; + t = 2; + ++wp; + } else if (*wp == '(') { + lim = 2; + t = 3; + ++wp; + } + + if (*wp == '+' || *wp == '-') + ++wp; + + if (*wp == '\'') { + if (t) { + *word = wp; + return; + } + lim = 0; + t = 1; + ++wp; + } else if (*wp == '[') { + if (t) { + *word = wp; + return; + } + lim = 0; + t = 2; + ++wp; + } else if (*wp == '(') { + if (t) { + *word = wp; + return; + } + lim = 2; + t = 3; + ++wp; + } + + if ( ! isdigit((u_char)*wp)) { + *word = --wp; + return; + } + + for (j = 0; isdigit((u_char)*wp); j++) { + if (lim && j >= lim) + break; + ++wp; + } + + if (t && t < 3) { + if (1 == t && *wp != '\'') { + *word = --wp; + return; + } + if (2 == t && *wp != ']') { + *word = --wp; + return; + } + ++wp; + } + *word = --wp; + return; +#endif + + case ('f'): + wp++; + + switch (*wp) { + case ('\0'): + return(1); + case ('3'): + /* FALLTHROUGH */ + case ('B'): + *d = DECO_BOLD; + break; + case ('2'): + /* FALLTHROUGH */ + case ('I'): + *d = DECO_ITALIC; + break; + case ('P'): + *d = DECO_PREVIOUS; + break; + case ('1'): + /* FALLTHROUGH */ + case ('R'): + *d = DECO_ROMAN; + break; + default: + break; + } + + return(2); + + case ('['): + break; + + default: + *d = DECO_SPECIAL; + *word = wp; + *sz = 1; + return(1); + } + + *word = ++wp; + for (j = 0; *wp && ']' != *wp; wp++, j++) + /* Loop... */ ; + + if ('\0' == *wp) + return(j + 1); + + *d = type ? DECO_SPECIAL : DECO_RESERVED; + *sz = j; + return (j + 2); +} @@ -35,6 +35,17 @@ enum roffscale { SCALE_MAX }; +enum roffdeco { + DECO_NONE, + DECO_SPECIAL, + DECO_RESERVED, + DECO_BOLD, + DECO_ITALIC, + DECO_ROMAN, + DECO_PREVIOUS, + DECO_MAX +}; + struct roffsu { enum roffscale unit; double scale; @@ -54,6 +65,7 @@ struct roffsu { int a2roffsu(const char *, struct roffsu *, enum roffscale); +int a2roffdeco(enum roffdeco *, const char **, size_t *); void time2a(time_t, char *, size_t); __END_DECLS |