diff options
| -rw-r--r-- | lib/regextype.h | 27 |
1 files changed, 24 insertions, 3 deletions
diff --git a/lib/regextype.h b/lib/regextype.h index f5855e36..87a97da7 100644 --- a/lib/regextype.h +++ b/lib/regextype.h @@ -1,7 +1,6 @@ -/* regextype.h -- Decode the name of a regular expression syntax into am - option name. +/* regextype.h -- Decode the name of a regular expression syntax. - Copyright 2005, 2010, 2011 Free Software Foundation, Inc. + Copyright 2005, 2010, 2011, 2015 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -19,6 +18,10 @@ /* Written by James Youngman <jay@gnu.org>. */ +/* Translate a regular expression type name into an option mask. + * This could convert "grep" into RE_SYNTAX_GREP, for example. + * Return -1 if there is no match. + */ int get_regex_type(const char *s); enum { @@ -29,7 +32,25 @@ enum { +/* Returns the regex type name corresponding to index IX. + * Indexes start at 0. Returns NULL if IX is too large. + */ const char * get_regex_type_name(unsigned int ix); + + +/* Returns the option mask name corresponding to regular expresion + * type index IX. Indexes start at 0. Behaviour is undefined if IX + * has a value which would cause get_regex_type_name to return NULL. + */ int get_regex_type_flags(unsigned int ix); + +/* If regular expression type IX (which is a regular expression type index) has + * one or more synonyms, return the index of one of them. Otherwise, return -1. + */ int get_regex_type_synonym(unsigned int ix); + +/* Returns one of CONTEXT_FINDUTILS, CONTEXT_GENERIC or CONTEXT_ALL. + * This identifies whether this regular expression type index is relevant for, + * respectively, findutils, general callers, or all callers. + */ unsigned int get_regex_type_context(unsigned int ix); |