diff options
Diffstat (limited to 'mandoc.c')
| -rw-r--r-- | mandoc.c | 212 |
1 files changed, 62 insertions, 150 deletions
@@ -1,6 +1,6 @@ /* $Id$ */ /* - * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@bsd.lv> + * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv> * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -31,187 +31,99 @@ #include "libmandoc.h" static int a2time(time_t *, const char *, const char *); -static int spec_norm(char *, int); - - -/* - * "Normalise" a special string by converting its ASCII_HYPH entries - * into actual hyphens. - */ -static int -spec_norm(char *p, int sz) -{ - int i; - - for (i = 0; i < sz; i++) - if (ASCII_HYPH == p[i]) - p[i] = '-'; - - return(sz); -} int mandoc_special(char *p) { - int terminator; /* Terminator for \s. */ - int lim; /* Limit for N in \s. */ - int c, i; + int len, i; + char term; char *sv; + len = 0; + term = '\0'; sv = p; - if ('\\' != *p++) - return(spec_norm(sv, 0)); + assert('\\' == *p); + p++; - switch (*p) { - case ('\''): - /* FALLTHROUGH */ - case ('`'): - /* FALLTHROUGH */ - case ('q'): - /* FALLTHROUGH */ - case (ASCII_HYPH): - /* FALLTHROUGH */ - case ('-'): - /* FALLTHROUGH */ - case ('~'): - /* FALLTHROUGH */ - case ('^'): - /* FALLTHROUGH */ - case ('%'): - /* FALLTHROUGH */ - case ('0'): - /* FALLTHROUGH */ - case (' '): - /* FALLTHROUGH */ - case ('}'): - /* FALLTHROUGH */ - case ('|'): - /* FALLTHROUGH */ - case ('&'): - /* FALLTHROUGH */ - case ('.'): - /* FALLTHROUGH */ - case (':'): - /* FALLTHROUGH */ - case ('c'): - /* FALLTHROUGH */ - case ('e'): - return(spec_norm(sv, 2)); + switch (*p++) { case ('s'): - if ('\0' == *++p) - return(spec_norm(sv, 2)); - - c = 2; - terminator = 0; - lim = 1; - - if (*p == '\'') { - lim = 0; - terminator = 1; - ++p; - ++c; - } else if (*p == '[') { - lim = 0; - terminator = 2; - ++p; - ++c; - } else if (*p == '(') { - lim = 2; - terminator = 3; - ++p; - ++c; - } + if (ASCII_HYPH == *p) + *p = '-'; + if ('+' == *p || '-' == *p) + p++; - if (*p == '+' || *p == '-') { - ++p; - ++c; - } - - if (*p == '\'') { - if (terminator) - return(spec_norm(sv, 0)); - lim = 0; - terminator = 1; - ++p; - ++c; - } else if (*p == '[') { - if (terminator) - return(spec_norm(sv, 0)); - lim = 0; - terminator = 2; - ++p; - ++c; - } else if (*p == '(') { - if (terminator) - return(spec_norm(sv, 0)); - lim = 2; - terminator = 3; - ++p; - ++c; - } - - /* TODO: needs to handle floating point. */ - - if ( ! isdigit((u_char)*p)) - return(spec_norm(sv, 0)); - - for (i = 0; isdigit((u_char)*p); i++) { - if (lim && i >= lim) - break; - ++p; - ++c; - } + i = ('s' != *(p - 1)); - if (terminator && terminator < 3) { - if (1 == terminator && *p != '\'') - return(spec_norm(sv, 0)); - if (2 == terminator && *p != ']') - return(spec_norm(sv, 0)); - ++p; - ++c; + switch (*p++) { + case ('('): + len = 2; + break; + case ('['): + term = ']'; + break; + case ('\''): + term = '\''; + break; + default: + len = 1; + p--; + break; } - return(spec_norm(sv, c)); + if (ASCII_HYPH == *p) + *p = '-'; + if ('+' == *p || '-' == *p) { + if (i++) + return(0); + p++; + } + + if (0 == i) + return(0); + break; case ('f'): /* FALLTHROUGH */ case ('F'): /* FALLTHROUGH */ case ('*'): - if ('\0' == *++p || isspace((u_char)*p)) - return(spec_norm(sv, 0)); - switch (*p) { + switch (*p++) { case ('('): - if ('\0' == *++p || isspace((u_char)*p)) - return(spec_norm(sv, 0)); - return(spec_norm(sv, 4)); + len = 2; + break; case ('['): - for (c = 3, p++; *p && ']' != *p; p++, c++) - if (isspace((u_char)*p)) - break; - return(spec_norm(sv, *p == ']' ? c : 0)); + term = ']'; + break; default: + len = 1; + p--; break; } - return(spec_norm(sv, 3)); + break; case ('('): - if ('\0' == *++p || isspace((u_char)*p)) - return(spec_norm(sv, 0)); - if ('\0' == *++p || isspace((u_char)*p)) - return(spec_norm(sv, 0)); - return(spec_norm(sv, 4)); + len = 2; + break; case ('['): + term = ']'; break; default: - return(spec_norm(sv, 0)); + len = 1; + p--; + break; } - for (c = 3, p++; *p && ']' != *p; p++, c++) - if (isspace((u_char)*p)) - break; + if (term) { + for ( ; *p && term != *p; p++) + if (ASCII_HYPH == *p) + *p = '-'; + return(*p ? p - sv : 0); + } - return(spec_norm(sv, *p == ']' ? c : 0)); + for (i = 0; *p && i < len; i++, p++) + if (ASCII_HYPH == *p) + *p = '-'; + return(i == len ? p - sv : 0); } |