This section, and the next, employ some very brittle techniques for evaluting strings of Perl code. Look for updates to this document soon. Arguably, this is the only routine you'll ever need to execute snippets of Perl code from within your C program. All of those strange functions with sv in their names help convert Perl scalars to C types. They're described in the perlguts manpage .
Text contains the word 'quarter'.
Text doesn't contain the word 'eighth'. 139 substitutions made. H fmbls thrgh hs rd sqzy chngprs nd gvs th by thr xtr pnns wth hs dllr, hpng tht h mght lck nt th crrct mnt. No substitution made. They're described in the perlguts manpage .