Description

Padre provides an easy way to build and analyze regular expressions compatible with Perl 5.

The Regex Editor can be used for building and debugging regular expressions.

1. You can open the Regex editor via Tools -> Regex Editor
2. At the top you will see 5 check-boxes for the modifiers of the regex
3. The first window called Regular Expression is where you can type in the regex. By default you will see \w+ in there
4. The Replace with text contains Baz and is interesting when you are trying to build a substitution
5. Original text is the place where you should type in sample strings you'd like to match. By default it contains Foo Bar
6. Matched text is a copy of the Original text with the actual match (in the default case Foo) being red and underline
7. Result from replace contains the result of a substitution. By default it shows. Baz Bar

Tickets

Ticket	Resolution	Summary	Owner	Reporter
#1171		Regex Editor highlighting seems to be broken	szabgab	szabgab
#1170		Add undo to the regex editor		szabgab
#1169		Regex Editor does not understand \Q		szabgab
#1140	fixed	Regex editor reverses flags on insert		markkiteflyer
#1072		Regex editor: help button		zenogantner
#1032	fixed	Regex Editor: Escape sequences don't work in "Result from replace"		dandv
#960		regex editor improvement ideas		jdv79
#926	fixed	Escape key does not work most of the time in the regex editor		zenogantner
#925		(wishlist) offer Regex Editor in context menu when cursor is on a regular expression		zenogantner
#924		(wishlist) user-defined regex library, previously defined regexes, and Regexp::Common in the Regex Editor		zenogantner
#923	fixed	(wishlist) special (tab) characters should be also available in regex editor		zenogantner
#922	fixed	Regex editor keeps first language after language change.		zenogantner
#921	fixed	regex syntax error		leprevost
#899		(wishlist) Preferences: Use regex editor for the TODO regex	azawawi	zenogantner
#760		Clone and Substitution mode of txt2re		kthakore
#542	fixed	regex editor		szabgab

Test Case

The regex editor currently provides a single way to build both regexes and substitutes.

1. Regex \d+ Text: Foo 123 Bar , Expected Match: 123
2. Regex \d* Text: Foo 123 Bar , Expected Match: empty string before F and to give a warning accordingly (in 0.84 this marks the whole string)
3. Regex empty, Text: Foo 123 Bar , Expected Match: nothing (in 0.84 this marks the whole string)
4. Regex (?=b) , Text: abc , Expected to Match the empty string between a and b.

TODO

For ideas install kregexpeditor or regexxer on Linux or try Regex Coach: ​http://weitz.de/regex-coach/ on Windows See also ​http://www.regexbuddy.com/

• Support various versions of the perl 5 regexes (5.8, 5.10, 5.12 etc)
  • There should be an option (a selector on this window) to decide which regex dialect to support
  • (That is, there are certain new features in the regex engine and information about then under the buttons should be displayed along witht the minimum version required)
• Support Perl 6 style regexes
• Probably the regex and substitute part should be separated. At the top should be
  • Regular Expression
  • Original text
  • Matched text
  • checkbox to enable/disable substitution
  • Replace with text window
  • Result from replace window
• Also test the Insert button in both match and substitute
• Allow the user to change the delimiters of the regex from to {} in the editor already