^txt2regex$
^txt2regex$ is a regular expression wizard that leads the user through the construction of a regular expression by asking a series of questions. The regular expression is generated in the notation used by: AWK, ed, egrep, Emacs, expect, find, gawk, grep, lex, lisp, mawk, MySQL, OpenOffice.org, Perl, PHP, Postgres, Procmail, Python, SED, Tcl, VBscript, VI, and Vim. It is a useful tool for users with little or no knowledge of regular expressions.