Hi, Sudheera! On Jul 21, Sudheera Palihakkara wrote: > Hi all, > > I'm replacing the current regular expression library with modern > library(pcre) for mariadb. I need some information about the ways that code > uses the old regex library. The relevant codes are in sql/item_cmpfunc.cc > directory. For exapmle in the function : int Item_func_regex::regcomp(bool > send_error) I can't understand most of the lines, and the code is not > well-commented. In the new library(pcre) uses different way to compile a > regEx so I have to understand this and code for pcre preserving the > functionalists of the class. Is there any documentation for this file or > the way they used to work with old regex library ? thanks.
This class uses four functions of our old regex library - my_regcomp(), my_regerror(), my_regexec(), my_regfree(). If you remove the "my_" prefix, you can google them out, regcomp, regerror, regexec, regfree - they're all pretty standard. I presume pcre has something similar. Regards, Sergei _______________________________________________ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
