Last active
June 13, 2021 00:43
-
-
Save douglasduteil/5089187 to your computer and use it in GitHub Desktop.
Here is a start of a regex mode for CodeMirror inspired by [Regex Colorizer](http://stevenlevithan.com/regex/colorizer/)
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| .cm-s-default span.cm-a{background: #aad1f7;} | |
| .cm-s-default span.cm-b{background: #f9ca69;} | |
| .cm-s-default span.cm-c{color: #007a09;} | |
| .cm-s-default span.cm-g1{background: #d2f854;} | |
| .cm-s-default span.cm-g2{background: #9ec70c;} | |
| .cm-s-default span.cm-g3{background: #ecc9f7;} | |
| .cm-s-default span.cm-g4{background: #54b70b;} | |
| .cm-s-default span.cm-g5{background: #b688cf;} | |
| .cm-s-default span.cm-err{background: #ff4300;} |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| CodeMirror.defineMode("regex", function() { | |
| var otherChar = /^[\^\$\.\+\?\*]/; | |
| var g= 0; | |
| var tokenBase = function(stream) { | |
| var ch = stream.next(); | |
| if (ch == "\\" && stream.match(/./, false)) { | |
| if (stream.match(/u\w{4}/)) return "a"; | |
| if (stream.match(/u/)) return "err"; | |
| if (stream.match(/x\w{2}/)) return "a"; | |
| if (stream.match(/x/)) return "err"; | |
| if (stream.match(/./)) return "a"; | |
| return "a"; | |
| } | |
| if (ch == "{"){ | |
| if (stream.match(/(\d|\d,\d?)\}/)) return "a"; | |
| } | |
| if (ch == "[" && stream.match(/[^\]]+\]/)){ | |
| return "b"; | |
| } | |
| if (ch == "|") { | |
| return "g" + g; | |
| } | |
| if (ch == "(") { | |
| stream.match(/[\?\!\:]+/); | |
| return "g" + (++g % 5); | |
| } | |
| if (ch == ")") { | |
| if(g-1 < 0) return "err"; | |
| return "g" + (g-- % 5); | |
| } | |
| if (otherChar.test(ch)) { | |
| return "a"; | |
| } | |
| }; | |
| return { | |
| startState: function(base) { | |
| g= 0; | |
| }, | |
| token: tokenBase | |
| }; | |
| }); | |
| CodeMirror.defineMIME("text/x-regex", "regex"); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Hi,
For those who are still interested in regular expression syntax highlighting for CodeMirror, I have started working on codemirror-mode-pcre
I believe it covers most PCRE features pretty well and next improvements should focus on the CodeMirror side (starting with anything necessary to nest that mode).
Highlighting: