forgejo/vendor/github.com/alecthomas/chroma/lexers/f/fsharp.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

95 lines
4.1 KiB
Go
Vendored

package f
import (
. "github.com/alecthomas/chroma" // nolint
"github.com/alecthomas/chroma/lexers/internal"
)
// Fsharp lexer.
var Fsharp = internal.Register(MustNewLexer(
&Config{
Name: "FSharp",
Aliases: []string{"fsharp"},
Filenames: []string{"*.fs", "*.fsi"},
MimeTypes: []string{"text/x-fsharp"},
},
Rules{
"escape-sequence": {
{`\\[\\"\'ntbrafv]`, LiteralStringEscape, nil},
{`\\[0-9]{3}`, LiteralStringEscape, nil},
{`\\u[0-9a-fA-F]{4}`, LiteralStringEscape, nil},
{`\\U[0-9a-fA-F]{8}`, LiteralStringEscape, nil},
},
"root": {
{`\s+`, Text, nil},
{`\(\)|\[\]`, NameBuiltinPseudo, nil},
{`\b(?<!\.)([A-Z][\w\']*)(?=\s*\.)`, NameNamespace, Push("dotted")},
{`\b([A-Z][\w\']*)`, Name, nil},
{`///.*?\n`, LiteralStringDoc, nil},
{`//.*?\n`, CommentSingle, nil},
{`\(\*(?!\))`, Comment, Push("comment")},
{`@"`, LiteralString, Push("lstring")},
{`"""`, LiteralString, Push("tqs")},
{`"`, LiteralString, Push("string")},
{`\b(open|module)(\s+)([\w.]+)`, ByGroups(Keyword, Text, NameNamespace), nil},
{`\b(let!?)(\s+)(\w+)`, ByGroups(Keyword, Text, NameVariable), nil},
{`\b(type)(\s+)(\w+)`, ByGroups(Keyword, Text, NameClass), nil},
{`\b(member|override)(\s+)(\w+)(\.)(\w+)`, ByGroups(Keyword, Text, Name, Punctuation, NameFunction), nil},
{`\b(abstract|as|assert|base|begin|class|default|delegate|do!|do|done|downcast|downto|elif|else|end|exception|extern|false|finally|for|function|fun|global|if|inherit|inline|interface|internal|in|lazy|let!|let|match|member|module|mutable|namespace|new|null|of|open|override|private|public|rec|return!|return|select|static|struct|then|to|true|try|type|upcast|use!|use|val|void|when|while|with|yield!|yield|atomic|break|checked|component|const|constraint|constructor|continue|eager|event|external|fixed|functor|include|method|mixin|object|parallel|process|protected|pure|sealed|tailcall|trait|virtual|volatile)\b`, Keyword, nil},
{"``([^`\\n\\r\\t]|`[^`\\n\\r\\t])+``", Name, nil},
{"(!=|#|&&|&|\\(|\\)|\\*|\\+|,|-\\.|->|-|\\.\\.|\\.|::|:=|:>|:|;;|;|<-|<\\]|<|>\\]|>|\\?\\?|\\?|\\[<|\\[\\||\\[|\\]|_|`|\\{|\\|\\]|\\||\\}|~|<@@|<@|=|@>|@@>)", Operator, nil},
{`([=<>@^|&+\*/$%-]|[!?~])?[!$%&*+\./:<=>?@^|~-]`, Operator, nil},
{`\b(and|or|not)\b`, OperatorWord, nil},
{`\b(sbyte|byte|char|nativeint|unativeint|float32|single|float|double|int8|uint8|int16|uint16|int32|uint32|int64|uint64|decimal|unit|bool|string|list|exn|obj|enum)\b`, KeywordType, nil},
{`#[ \t]*(if|endif|else|line|nowarn|light|\d+)\b.*?\n`, CommentPreproc, nil},
{`[^\W\d][\w']*`, Name, nil},
{`\d[\d_]*[uU]?[yslLnQRZINGmM]?`, LiteralNumberInteger, nil},
{`0[xX][\da-fA-F][\da-fA-F_]*[uU]?[yslLn]?[fF]?`, LiteralNumberHex, nil},
{`0[oO][0-7][0-7_]*[uU]?[yslLn]?`, LiteralNumberOct, nil},
{`0[bB][01][01_]*[uU]?[yslLn]?`, LiteralNumberBin, nil},
{`-?\d[\d_]*(.[\d_]*)?([eE][+\-]?\d[\d_]*)[fFmM]?`, LiteralNumberFloat, nil},
{`'(?:(\\[\\\"'ntbr ])|(\\[0-9]{3})|(\\x[0-9a-fA-F]{2}))'B?`, LiteralStringChar, nil},
{`'.'`, LiteralStringChar, nil},
{`'`, Keyword, nil},
{`@?"`, LiteralStringDouble, Push("string")},
{`[~?][a-z][\w\']*:`, NameVariable, nil},
},
"dotted": {
{`\s+`, Text, nil},
{`\.`, Punctuation, nil},
{`[A-Z][\w\']*(?=\s*\.)`, NameNamespace, nil},
{`[A-Z][\w\']*`, Name, Pop(1)},
{`[a-z_][\w\']*`, Name, Pop(1)},
Default(Pop(1)),
},
"comment": {
{`[^(*)@"]+`, Comment, nil},
{`\(\*`, Comment, Push()},
{`\*\)`, Comment, Pop(1)},
{`@"`, LiteralString, Push("lstring")},
{`"""`, LiteralString, Push("tqs")},
{`"`, LiteralString, Push("string")},
{`[(*)@]`, Comment, nil},
},
"string": {
{`[^\\"]+`, LiteralString, nil},
Include("escape-sequence"),
{`\\\n`, LiteralString, nil},
{`\n`, LiteralString, nil},
{`"B?`, LiteralString, Pop(1)},
},
"lstring": {
{`[^"]+`, LiteralString, nil},
{`\n`, LiteralString, nil},
{`""`, LiteralString, nil},
{`"B?`, LiteralString, Pop(1)},
},
"tqs": {
{`[^"]+`, LiteralString, nil},
{`\n`, LiteralString, nil},
{`"""B?`, LiteralString, Pop(1)},
{`"`, LiteralString, nil},
},
},
))