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mirror of https://github.com/go-gitea/gitea synced 2024-12-29 12:04:28 +00:00
gitea/vendor/github.com/alecthomas/chroma/lexers/d/d.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

70 lines
3.2 KiB
Go
Vendored

package d
import (
. "github.com/alecthomas/chroma" // nolint
"github.com/alecthomas/chroma/lexers/internal"
)
// D lexer. https://dlang.org/spec/lex.html
var D = internal.Register(MustNewLexer(
&Config{
Name: "D",
Aliases: []string{"d"},
Filenames: []string{"*.d", "*.di"},
MimeTypes: []string{"text/x-d"},
EnsureNL: true,
},
Rules{
"root": {
{`[^\S\n]+`, Text, nil},
// https://dlang.org/spec/lex.html#comment
{`//.*?\n`, CommentSingle, nil},
{`/\*.*?\*/`, CommentMultiline, nil},
{`/\+.*?\+/`, CommentMultiline, nil},
// https://dlang.org/spec/lex.html#keywords
{`(asm|assert|body|break|case|cast|catch|continue|default|debug|delete|deprecated|do|else|finally|for|foreach|foreach_reverse|goto|if|in|invariant|is|macro|mixin|new|out|pragma|return|super|switch|this|throw|try|version|while|with)\b`, Keyword, nil},
{`__(FILE|FILE_FULL_PATH|MODULE|LINE|FUNCTION|PRETTY_FUNCTION|DATE|EOF|TIME|TIMESTAMP|VENDOR|VERSION)__\b`, NameBuiltin, nil},
{`__(traits|vector|parameters)\b`, NameBuiltin, nil},
{`((?:(?:[^\W\d]|\$)[\w.\[\]$<>]*\s+)+?)((?:[^\W\d]|\$)[\w$]*)(\s*)(\()`, ByGroups(UsingSelf("root"), NameFunction, Text, Operator), nil},
// https://dlang.org/spec/attribute.html#uda
{`@[\w.]*`, NameDecorator, nil},
{`(abstract|auto|alias|align|const|delegate|enum|export|final|function|inout|lazy|nothrow|override|package|private|protected|public|pure|static|synchronized|template|volatile|__gshared)\b`, KeywordDeclaration, nil},
// https://dlang.org/spec/type.html#basic-data-types
{`(void|bool|byte|ubyte|short|ushort|int|uint|long|ulong|cent|ucent|float|double|real|ifloat|idouble|ireal|cfloat|cdouble|creal|char|wchar|dchar|string|wstring|dstring)\b`, KeywordType, nil},
{`(module)(\s+)`, ByGroups(KeywordNamespace, Text), Push("import")},
{`(true|false|null)\b`, KeywordConstant, nil},
{`(class|interface|struct|template|union)(\s+)`, ByGroups(KeywordDeclaration, Text), Push("class")},
{`(import)(\s+)`, ByGroups(KeywordNamespace, Text), Push("import")},
// https://dlang.org/spec/lex.html#string_literals
// TODO support delimited strings
{`[qr]?"(\\\\|\\"|[^"])*"[cwd]?`, LiteralString, nil},
{"(`)([^`]*)(`)[cwd]?", LiteralString, nil},
{`'\\.'|'[^\\]'|'\\u[0-9a-fA-F]{4}'`, LiteralStringChar, nil},
{`(\.)((?:[^\W\d]|\$)[\w$]*)`, ByGroups(Operator, NameAttribute), nil},
{`^\s*([^\W\d]|\$)[\w$]*:`, NameLabel, nil},
// https://dlang.org/spec/lex.html#floatliteral
{`([0-9][0-9_]*\.([0-9][0-9_]*)?|\.[0-9][0-9_]*)([eE][+\-]?[0-9][0-9_]*)?[fFL]?i?|[0-9][eE][+\-]?[0-9][0-9_]*[fFL]?|[0-9]([eE][+\-]?[0-9][0-9_]*)?[fFL]|0[xX]([0-9a-fA-F][0-9a-fA-F_]*\.?|([0-9a-fA-F][0-9a-fA-F_]*)?\.[0-9a-fA-F][0-9a-fA-F_]*)[pP][+\-]?[0-9][0-9_]*[fFL]?`, LiteralNumberFloat, nil},
// https://dlang.org/spec/lex.html#integerliteral
{`0[xX][0-9a-fA-F][0-9a-fA-F_]*[lL]?`, LiteralNumberHex, nil},
{`0[bB][01][01_]*[lL]?`, LiteralNumberBin, nil},
{`0[0-7_]+[lL]?`, LiteralNumberOct, nil},
{`0|[1-9][0-9_]*[lL]?`, LiteralNumberInteger, nil},
{`([~^*!%&\[\](){}<>|+=:;,./?-]|q{)`, Operator, nil},
{`([^\W\d]|\$)[\w$]*`, Name, nil},
{`\n`, Text, nil},
},
"class": {
{`([^\W\d]|\$)[\w$]*`, NameClass, Pop(1)},
},
"import": {
{`[\w.]+\*?`, NameNamespace, Pop(1)},
},
},
))