/* This file contains functions for compiling a regular expression. See
* also regexec.c which funnily enough, contains functions for executing
* a regular expression.
+ *
+ * This file is also copied at build time to ext/re/re_comp.c, where
+ * it's built with -DPERL_EXT_RE_BUILD -DPERL_EXT_RE_DEBUG -DPERL_EXT.
+ * This causes the main functions to be compiled under new names and with
+ * debugging support added, which makes "use re 'debug'" work.
*/
/* NOTE: this is derived from Henry Spencer's regexp code, and should not