Interactive Regular Expression Tool

Develop and refine regular expressions in an interactive figure showing 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 :)