On 09/18/2010 04:05 PM, Bruno Haible wrote:
/* regex_quote converts a literal string to a regular expression that will look for this literal string. cflags can be 0 or REG_EXTENDED. If it is 0, the result is a Basic Regular Expression (BRE) <http://www.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap09.html#tag_09_03>. If it is REG_EXTENDED, the result is an Extended Regular Expression (ERE) <http://www.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap09.html#tag_09_04>. The result is not anchored; if you want it to match only complete lines, you need to add "^" at the beginning of the result and "$" at the end of the result. *//* Returns the number of bytes needed for the quoted string. */ extern size_t regex_quote_length (const char *string, int cflags);
Since we're already passing a flag, can we add another flag that adds the ^ and $ anchors? It's more convenient to do just one malloc (via the regex_quote) that also adds the anchors, than it is to have to manually call regex_quote_length, increment the result, malloc the space, insert the anchors, then call regex_quote_copy.
-- Eric Blake ebl...@redhat.com +1-801-349-2682 Libvirt virtualization library http://libvirt.org
