txt2regex — The console regular expression wizard
- Author: Aurelio Jargas
- License: GPL
- First release: 2001-02-23
- Website: http://aurelio.net/projects/txt2regex/
Txt2regex is a Regular Expression Wizard that converts human sentences to regexes. In a simple interactive console interface, the user answer questions and the program build the regexes for more than 20 programs, like Vim, Emacs, Perl, PHP, Python, Procmail and OpenOffice.org. It is a Shell Script 100% written with Bash builtin commands. No compilation or extra commands are needed, just download and run.
Install and run
Txt2regex will work in ANY system bash works, because it's a bash-only program. This includes Cygwin and Cygwin XFree also.
After expanding the tarball, simply run the program directly.
But if you want it installed on your system, or in other language besides
english, use the
- Just english: untar and run
- With i18n: untar, make install and run
tar xvzf txt2regex-VERSION.tgz cd txt2regex-VERSION
make install (as root, system install):
make install /usr/bin/txt2regex
make install (as user, local install):
make install BINDIR=. LOCALEDIR=po ./txt2regex
Note 1: Play with BINDIR, LOCALEDIR and DESTDIR variables to change the default install paths.
Note 2: Txt2regex only works in Bash version >= 2.04.
Tested programs versions
All regexes and rules the program knows about were extensively tested by hand or by the test-suite program. When the program can't be reached or executed on my machine, the rules were taken:
- From the program documentation
- Or missing it, from the "Mastering Regular Expressions" O'Reilly book
- Or missing it, from Internet documents (Oh no!)
Programs I've tested here:
- ed: GNU ed version 0.2
- mawk: mawk 1.3.3 Nov 1996
- gawk: GNU Awk 3.0.6
- grep: grep (GNU grep) 2.4.2
- egrep: egrep (GNU grep) 2.4.2
- find: GNU find version 4.1
- mysql: Ver 11.13 Distrib 3.23.36
- ooo: OpenOffice.org 1.1.0
- perl: v5.6.0 built for i386-linux
- php: 4.0.6
- postgres: psql (PostgreSQL) 7.1.2
- procmail: procmail v3.15.1 2001/01/08
- python: Python 2.1
- sed: GNU sed version 3.02.80
- tcl: 8.3
- vi: Nvi 1.79 (10/23/96)
- vim: VIM - Vi IMproved 5.8 (2001 May 31)
"I feel like I could... Like I could... TAKE OVER THE WORLD"
ca catalan Carles (ChAoS) de_DE german Jan Parthey en english Aurelio Jargas es_ES spanish Diego Moya fr_FR french wwp id_ID bahasa indonesian Muhamad Faizal it_IT italian Daniele Pizzolli ja japanese Hajime Dei pl_PL polish Chris Piechowicz pt_BR brazilian portuguese Aurelio Jargas ro_RO romanian Robert Claudiu Gheorghe
A nice way to contribute with the project, is to translate its
messages to your own language. Just get the
file and translate it, on the
msgstr lines. In doubt, ask.
A: To try to make simple regexes less painful for the beginners.
A: To have a reliable source for regexes differences between programs.
A: To have coding fun &:)
Q: Why bash2?
A: Basically, for me to learn the new bash2 concepts as arrays, i18n and advanced variable expansion. They rule!
Q: My screen has more than 25 lines, I'm serious!
Q: Why it only uses 80 columns if my screen has more?
Q: I've changed the xterm window size, why it didn't notice that?
A: The program do use the bash environment variables
$COLUMNS to get the actual screen size. Those MUST be exported
variables, or you'll be stuck at the default 80x25 size. Try:
/bin/bash -c 'echo $COLUMNS $LINES'
If you don't get the screen size, do:
echo export COLUMNS LINES >> ~/.bash_profile
Q: Why my bash version is not recognized correctly?
Q: Here bash --version is >=2.04. Why the program gets other?
A: To find your bash version, the program uses the
environment variable that is available in all bash versions.
If some alien has possessed your machine and your environment don't have this variable, try to set it by hand. Check with
If this variable is ok, but
bash --version returns other
version, check if your bash is really /bin/bash:
If it's not
/bin/bash, you MUST change the first line
of the script to your bash's right path. Suppose you have the
bash binary in your
$HOME because the system's bash is old,
just change the first line of the program to:
Or if you cannot change the program file, call it with bash:
Sux, but worx.
Q: What is that that appears when I choose TAB on the special combination menu?
A: Inside lists , the string is a visual representation of a literal TAB character, for programs which doesn't support [\t].