Interactive Regular Expression Tool

Develop and refine regular expressions in an interactive figure that shows all of REGEXP's outputs.

Finally, new features of UIFIGURE allowed me to write the GUI that I wanted to write 10 years ago...

Features

IREGEXP is a simple interactive tool to help develop regular expressions: IREGEXP lets you write a regular expression and see REGEXP's outputs update in real-time.

IREGEXP consists of just one Mfile which creates a UIFIGURE with three input text-boxes (for the input text, the regular expression, and any optional arguments) and two UITABLES which display all of REGEXP's outputs. Drop-down menus control the EOL character(s) and how space & control characters are displayed.

IREGEXP can be used in two ways (and in any combination of these two ways):

1. interactively by typing directly into the figure's text-boxes, or
2. by calling the function with exactly the same inputs and options as REGEXP itself.

Keep It Simple

IREGEXP is intended to be the simplest interactive regular expression tool on FEX: no highlighting, no links, no colors, no buttons, no java code, no file parsing, no apps to install, no third-party dependencies... just this one Mfile is all you need. IREGEXP aids fast development of a regular expression, especially by allowing editing using only the keyboard (use the TAB key to switch between the text-boxes), to parse short pieces of text.

Examples

>> str = 'bat cat can car coat court CUT ct CAT-scan';
>> rgx = 'c[aeiou]+t';
>> idx = iregexp(str,rgx)
idx = [5,17]

>> str = 'EXTRA! The iregexp function helps you relax.';
>> rgx = '\w*x\w*';
>> mat = iregexp(str,rgx,'match')
mat = {'iregexp','relax'}

MATLAB <R2023b

Click on the "Version History" tab and download version 3.1.1. It does not have all the nice features of UIFIGURE, but works as documented :)