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package g
import (
"strings"
. "github.com/alecthomas/chroma" // nolint
"github.com/alecthomas/chroma/lexers/h"
"github.com/alecthomas/chroma/lexers/internal"
)
// Go lexer.
var Go = internal.Register(MustNewLazyLexer(
&Config{
Name: "Go",
Aliases: []string{"go", "golang"},
Filenames: []string{"*.go"},
MimeTypes: []string{"text/x-gosrc"},
EnsureNL: true,
},
goRules,
).SetAnalyser(func(text string) float32 {
if strings.Contains(text, "fmt.") && strings.Contains(text, "package ") {
return 0.5
}
if strings.Contains(text, "package ") {
return 0.1
}
return 0.0
}))
func goRules() Rules {
return Rules{
"root": {
{`\n`, Text, nil},
{`\s+`, Text, nil},
{`\\\n`, Text, nil},
{`//(.*?)\n`, CommentSingle, nil},
{`/(\\\n)?[*](.|\n)*?[*](\\\n)?/`, CommentMultiline, nil},
{`(import|package)\b`, KeywordNamespace, nil},
{`(var|func|struct|map|chan|type|interface|const)\b`, KeywordDeclaration, nil},
{Words(``, `\b`, `break`, `default`, `select`, `case`, `defer`, `go`, `else`, `goto`, `switch`, `fallthrough`, `if`, `range`, `continue`, `for`, `return`), Keyword, nil},
{`(true|false|iota|nil)\b`, KeywordConstant, nil},
{Words(``, `\b(\()`, `uint`, `uint8`, `uint16`, `uint32`, `uint64`, `int`, `int8`, `int16`, `int32`, `int64`, `float`, `float32`, `float64`, `complex64`, `complex128`, `byte`, `rune`, `string`, `bool`, `error`, `uintptr`, `print`, `println`, `panic`, `recover`, `close`, `complex`, `real`, `imag`, `len`, `cap`, `append`, `copy`, `delete`, `new`, `make`), ByGroups(NameBuiltin, Punctuation), nil},
{Words(``, `\b`, `uint`, `uint8`, `uint16`, `uint32`, `uint64`, `int`, `int8`, `int16`, `int32`, `int64`, `float`, `float32`, `float64`, `complex64`, `complex128`, `byte`, `rune`, `string`, `bool`, `error`, `uintptr`), KeywordType, nil},
{`\d+i`, LiteralNumber, nil},
{`\d+\.\d*([Ee][-+]\d+)?i`, LiteralNumber, nil},
{`\.\d+([Ee][-+]\d+)?i`, LiteralNumber, nil},
{`\d+[Ee][-+]\d+i`, LiteralNumber, nil},
{`\d+(\.\d+[eE][+\-]?\d+|\.\d*|[eE][+\-]?\d+)`, LiteralNumberFloat, nil},
{`\.\d+([eE][+\-]?\d+)?`, LiteralNumberFloat, nil},
{`0[0-7]+`, LiteralNumberOct, nil},
{`0[xX][0-9a-fA-F_]+`, LiteralNumberHex, nil},
{`0b[01_]+`, LiteralNumberBin, nil},
{`(0|[1-9][0-9_]*)`, LiteralNumberInteger, nil},
{`'(\\['"\\abfnrtv]|\\x[0-9a-fA-F]{2}|\\[0-7]{1,3}|\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{8}|[^\\])'`, LiteralStringChar, nil},
{"(`)([^`]*)(`)", ByGroups(LiteralString, Using(TypeRemappingLexer(GoTextTemplate, TypeMapping{{Other, LiteralString, nil}})), LiteralString), nil},
{`"(\\\\|\\"|[^"])*"`, LiteralString, nil},
{`(<<=|>>=|<<|>>|<=|>=|&\^=|&\^|\+=|-=|\*=|/=|%=|&=|\|=|&&|\|\||<-|\+\+|--|==|!=|:=|\.\.\.|[+\-*/%&])`, Operator, nil},
{`([a-zA-Z_]\w*)(\s*)(\()`, ByGroups(NameFunction, UsingSelf("root"), Punctuation), nil},
{`[|^<>=!()\[\]{}.,;:]`, Punctuation, nil},
{`[^\W\d]\w*`, NameOther, nil},
},
}
}
func goTemplateRules() Rules {
return Rules{
"root": {
{`{{(- )?/\*(.|\n)*?\*/( -)?}}`, CommentMultiline, nil},
{`{{[-]?`, CommentPreproc, Push("template")},
{`[^{]+`, Other, nil},
{`{`, Other, nil},
},
"template": {
{`[-]?}}`, CommentPreproc, Pop(1)},
{`(?=}})`, CommentPreproc, Pop(1)}, // Terminate the pipeline
{`\(`, Operator, Push("subexpression")},
{`"(\\\\|\\"|[^"])*"`, LiteralString, nil},
Include("expression"),
},
"subexpression": {
{`\)`, Operator, Pop(1)},
Include("expression"),
},
"expression": {
{`\s+`, Whitespace, nil},
{`\(`, Operator, Push("subexpression")},
{`(range|if|else|while|with|template|end|true|false|nil|and|call|html|index|js|len|not|or|print|printf|println|urlquery|eq|ne|lt|le|gt|ge)\b`, Keyword, nil},
{`\||:?=|,`, Operator, nil},
{`[$]?[^\W\d]\w*`, NameOther, nil},
{`\$|[$]?\.(?:[^\W\d]\w*)?`, NameAttribute, nil},
{`"(\\\\|\\"|[^"])*"`, LiteralString, nil},
{`-?\d+i`, LiteralNumber, nil},
{`-?\d+\.\d*([Ee][-+]\d+)?i`, LiteralNumber, nil},
{`\.\d+([Ee][-+]\d+)?i`, LiteralNumber, nil},
{`-?\d+[Ee][-+]\d+i`, LiteralNumber, nil},
{`-?\d+(\.\d+[eE][+\-]?\d+|\.\d*|[eE][+\-]?\d+)`, LiteralNumberFloat, nil},
{`-?\.\d+([eE][+\-]?\d+)?`, LiteralNumberFloat, nil},
{`-?0[0-7]+`, LiteralNumberOct, nil},
{`-?0[xX][0-9a-fA-F]+`, LiteralNumberHex, nil},
{`-?0b[01_]+`, LiteralNumberBin, nil},
{`-?(0|[1-9][0-9]*)`, LiteralNumberInteger, nil},
{`'(\\['"\\abfnrtv]|\\x[0-9a-fA-F]{2}|\\[0-7]{1,3}|\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{8}|[^\\])'`, LiteralStringChar, nil},
{"`[^`]*`", LiteralString, nil},
},
}
}
var GoHTMLTemplate = internal.Register(DelegatingLexer(h.HTML, MustNewLazyLexer(
&Config{
Name: "Go HTML Template",
Aliases: []string{"go-html-template"},
},
goTemplateRules,
)))
var GoTextTemplate = internal.Register(MustNewLazyLexer(
&Config{
Name: "Go Text Template",
Aliases: []string{"go-text-template"},
},
goTemplateRules,
))
|
