Regular expressions: Difference between revisions

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Revision as of 14:11, 14 April 2024 view source Langurmonkey (talk \| contribs) 1,007 edits →‎{{header\|langur}} ← Older edit		Latest revision as of 07:59, 6 July 2024 view source Aartaka (talk \| contribs) 129 edits →‎{{header\|ed}}: Expand on things
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Line 825: If a < 0 then result:= -a; </pre> =={{header\|ed}}== Ed <tt>s</tt> command is using regex for substitution, so the editor has built-in native support for regex. <syntaxhighlight lang="sed"> # by Artyom Bologov H t0 1s/^.string.$/Ends with string/ 2s/ a / another / ,p Q </syntaxhighlight> {{out}} <pre>$ed -s regex.input < regex.ed Newline appended Ends with string This is another string</pre> =={{header\|Elixir}}== Elixir allows pattern matching using the <code>~r</code> sigil. Line 1,396 ⟶ 1,418: Or... <syntaxhighlight lang="langur">if ~~val .~~x, .y = submatch(re/(abc+).+?(def)/, "somestring") { ... }</syntaxhighlight> Or... Line 2,019 ⟶ 2,041: I think that I am Nigel contains I am I think that you are Nigel contains you are </pre> =={{header\|PascalABC.NET}}== <syntaxhighlight lang="delphi"> begin // text in tag (lazy quantification) var s := '<tag>abc</tag> def <tag>ghi</tag>'; foreach var m in s.Matches('(?<=<tag>)(.*?)(?=</tag>)') do Println(m.Value, m.Index); // take words in parentheses s := 'one two three four five'; Regex.Replace(s,'\w+','<$0>').Println; end. </syntaxhighlight> {{out}} <pre> abc 5 ghi 24 <one> <two> <three> <four> <five> </pre>