Question 1

How to use TRegExpr in a Delphi project?

Accepted Answer

Download the source code from GitHub, add the regexpr.pas file to your project, and include it in the uses clause. The pure Pascal implementation means no external DLLs are needed.

Question 2

TRegExpr vs PCRE for Pascal – which should I choose?

Accepted Answer

TRegExpr is better for dependency-free, native Pascal integration and is included in Free Pascal, while PCRE offers more features and performance but requires external libraries. Choose based on your project's need for simplicity versus advanced capabilities.

Question 3

Does TRegExpr support Unicode text matching?

Accepted Answer

The README doesn't explicitly state Unicode support, but since Free Pascal supports Unicode, it likely does. Check the documentation at regex.sorokin.engineer for specific encoding details.

Question 4

What regex syntax does TRegExpr implement?

Accepted Answer

TRegExpr uses its own regex syntax, which is similar to Perl but may have limitations. Refer to the multi-language documentation for exact syntax rules and supported patterns.

Question 5

Is TRegExpr actively maintained and updated?

Accepted Answer

Yes, the GitHub repository shows continuous integration with workflow badges, and its inclusion in Free Pascal suggests ongoing support. Check the commit history for recent updates and bug fixes.

Question 6

Can TRegExpr handle complex regex patterns like lookahead?

Accepted Answer

It may support basic lookahead, but for advanced features, verify the documentation. As a Pascal-focused engine, it might not include all constructs from other regex libraries.

TRegExpr

What is TRegExpr?

Overview

Use Cases

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Pros & Cons

Pros

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Frequently Asked Questions