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forgejo/vendor/github.com/alecthomas/chroma/lexers/c/chaiscript.go
mrsdizzie af7ffaa279
Server-side syntax highlighting for all code (#12047)
* Server-side syntax hilighting for all code

This PR does a few things:

* Remove all traces of highlight.js
* Use chroma library to provide fast syntax hilighting directly on the server
* Provide syntax hilighting for diffs
* Re-style both unified and split diffs views
* Add custom syntax hilighting styling for both regular and arc-green

Fixes #7729
Fixes #10157
Fixes #11825
Fixes #7728
Fixes #3872
Fixes #3682

And perhaps gets closer to #9553

* fix line marker

* fix repo search

* Fix single line select

* properly load settings

* npm uninstall highlight.js

* review suggestion

* code review

* forgot to call function

* fix test

* Apply suggestions from code review

suggestions from @silverwind thanks

Co-authored-by: silverwind <me@silverwind.io>

* code review

* copy/paste error

* Use const for highlight size limit

* Update web_src/less/_repository.less

Co-authored-by: Lauris BH <lauris@nix.lv>

* update size limit to 1MB and other styling tweaks

* fix highlighting for certain diff sections

* fix test

* add worker back as suggested

Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: Lauris BH <lauris@nix.lv>
2020-07-01 00:34:03 +03:00

63 lines
2 KiB
Go

package c
import (
. "github.com/alecthomas/chroma" // nolint
"github.com/alecthomas/chroma/lexers/internal"
)
// Chaiscript lexer.
var Chaiscript = internal.Register(MustNewLexer(
&Config{
Name: "ChaiScript",
Aliases: []string{"chai", "chaiscript"},
Filenames: []string{"*.chai"},
MimeTypes: []string{"text/x-chaiscript", "application/x-chaiscript"},
DotAll: true,
},
Rules{
"commentsandwhitespace": {
{`\s+`, Text, nil},
{`//.*?\n`, CommentSingle, nil},
{`/\*.*?\*/`, CommentMultiline, nil},
{`^\#.*?\n`, CommentSingle, nil},
},
"slashstartsregex": {
Include("commentsandwhitespace"),
{`/(\\.|[^[/\\\n]|\[(\\.|[^\]\\\n])*])+/([gim]+\b|\B)`, LiteralStringRegex, Pop(1)},
{`(?=/)`, Text, Push("#pop", "badregex")},
Default(Pop(1)),
},
"badregex": {
{`\n`, Text, Pop(1)},
},
"root": {
Include("commentsandwhitespace"),
{`\n`, Text, nil},
{`[^\S\n]+`, Text, nil},
{`\+\+|--|~|&&|\?|:|\|\||\\(?=\n)|\.\.(<<|>>>?|==?|!=?|[-<>+*%&|^/])=?`, Operator, Push("slashstartsregex")},
{`[{(\[;,]`, Punctuation, Push("slashstartsregex")},
{`[})\].]`, Punctuation, nil},
{`[=+\-*/]`, Operator, nil},
{`(for|in|while|do|break|return|continue|if|else|throw|try|catch)\b`, Keyword, Push("slashstartsregex")},
{`(var)\b`, KeywordDeclaration, Push("slashstartsregex")},
{`(attr|def|fun)\b`, KeywordReserved, nil},
{`(true|false)\b`, KeywordConstant, nil},
{`(eval|throw)\b`, NameBuiltin, nil},
{"`\\S+`", NameBuiltin, nil},
{`[$a-zA-Z_]\w*`, NameOther, nil},
{`[0-9][0-9]*\.[0-9]+([eE][0-9]+)?[fd]?`, LiteralNumberFloat, nil},
{`0x[0-9a-fA-F]+`, LiteralNumberHex, nil},
{`[0-9]+`, LiteralNumberInteger, nil},
{`"`, LiteralStringDouble, Push("dqstring")},
{`'(\\\\|\\'|[^'])*'`, LiteralStringSingle, nil},
},
"dqstring": {
{`\$\{[^"}]+?\}`, LiteralStringInterpol, nil},
{`\$`, LiteralStringDouble, nil},
{`\\\\`, LiteralStringDouble, nil},
{`\\"`, LiteralStringDouble, nil},
{`[^\\"$]+`, LiteralStringDouble, nil},
{`"`, LiteralStringDouble, Pop(1)},
},
},
))