Numerical Methods at work

Disclaimer:
Permission to use, copy, and distribute this software, and It’s documentation for any non-commercial purpose is hereby granted without fee, provided: THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL Henrik Vestermark, BE LIABLE FOR ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

Regular expression testing App

This app allows you to test regular expressions before using them, ensuring they provide the desired outcomes. Simply enter your regular expression in the input field, specify any modifiers, and input the text you want to test for matches. You can also enter a second regular expression to test simultaneously against the same text. Press the 'Match' button to execute, and the Matching Results section will list any matches found. This dual-testing feature allows for more thorough validation of your regular expressions.Version 1.9 includes optimization and analytics of regular expressions. Furtherdown under Additional resouces is the download section for three papers on regular expressions.

Additional resources

Below is three additonal documents that I wrote about regular expression.

A tool for Optimizing regular expressions. Read more ...
A tool for decomposing regular expressions. Read more ...
Exploring Regular Expressions Through Practical Examples. Read more ...
ParseRegex.js User Manual. Read more ...
ParseRegex.js JavaScript code. Read more ...

Corrections:
6-Feb-2025 Vs 1.10 Disable autocapitalization, autocorrection and spellcheck for the input fields.
23-Nov-2024 Vs 1.9 Added statictal information for executing regular expression.
30-Sep-2024 Vs 1.8 Improved Optimizer.
17-Sep-2024 Vs 1.7 Improved decomposition analysis and added optimization suggestion in a new button and tab called Optimize.
25-Aug-2024 Vs 1.6 Added an optional second regular expression line to be tested simultaneously plus updated the help section.
17-Aug-2024 Vs 1.5 Added more samples and introduce decomposing of regular expression.
19-Nov-2020 Vs 1.4 Added multiline matching.
17-Nov-2020 Vs 1.3 Fix a bug in reporting illegal regular expressions.
23-Dec-2019 Vs 1.2 Fix a bug in retrieving the history of regular expressions.
28-Oct-2019 Vs 1.1 Redesign the GUI Interface.
25-Apr-2018 Vs 1 Initial release.