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52 lines
2.3 KiB
52 lines
2.3 KiB
4 years ago
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package j
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import (
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. "github.com/alecthomas/chroma" // nolint
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"github.com/alecthomas/chroma/lexers/internal"
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)
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// Java lexer.
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var Java = internal.Register(MustNewLexer(
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&Config{
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Name: "Java",
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Aliases: []string{"java"},
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Filenames: []string{"*.java"},
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MimeTypes: []string{"text/x-java"},
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DotAll: true,
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},
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Rules{
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"root": {
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{`[^\S\n]+`, Text, nil},
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{`//.*?\n`, CommentSingle, nil},
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{`/\*.*?\*/`, CommentMultiline, nil},
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{`(assert|break|case|catch|continue|default|do|else|finally|for|if|goto|instanceof|new|return|switch|this|throw|try|while)\b`, Keyword, nil},
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{`((?:(?:[^\W\d]|\$)[\w.\[\]$<>]*\s+)+?)((?:[^\W\d]|\$)[\w$]*)(\s*)(\()`, ByGroups(UsingSelf("root"), NameFunction, Text, Operator), nil},
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{`@[^\W\d][\w.]*`, NameDecorator, nil},
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{`(abstract|const|enum|extends|final|implements|native|private|protected|public|static|strictfp|super|synchronized|throws|transient|volatile)\b`, KeywordDeclaration, nil},
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{`(boolean|byte|char|double|float|int|long|short|void)\b`, KeywordType, nil},
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{`(package)(\s+)`, ByGroups(KeywordNamespace, Text), Push("import")},
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{`(true|false|null)\b`, KeywordConstant, nil},
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{`(class|interface)(\s+)`, ByGroups(KeywordDeclaration, Text), Push("class")},
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{`(import(?:\s+static)?)(\s+)`, ByGroups(KeywordNamespace, Text), Push("import")},
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{`"(\\\\|\\"|[^"])*"`, LiteralString, nil},
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{`'\\.'|'[^\\]'|'\\u[0-9a-fA-F]{4}'`, LiteralStringChar, nil},
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{`(\.)((?:[^\W\d]|\$)[\w$]*)`, ByGroups(Operator, NameAttribute), nil},
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{`^\s*([^\W\d]|\$)[\w$]*:`, NameLabel, nil},
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{`([^\W\d]|\$)[\w$]*`, Name, nil},
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{`([0-9][0-9_]*\.([0-9][0-9_]*)?|\.[0-9][0-9_]*)([eE][+\-]?[0-9][0-9_]*)?[fFdD]?|[0-9][eE][+\-]?[0-9][0-9_]*[fFdD]?|[0-9]([eE][+\-]?[0-9][0-9_]*)?[fFdD]|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_]*[fFdD]?`, LiteralNumberFloat, nil},
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{`0[xX][0-9a-fA-F][0-9a-fA-F_]*[lL]?`, LiteralNumberHex, nil},
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{`0[bB][01][01_]*[lL]?`, LiteralNumberBin, nil},
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{`0[0-7_]+[lL]?`, LiteralNumberOct, nil},
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{`0|[1-9][0-9_]*[lL]?`, LiteralNumberInteger, nil},
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{`[~^*!%&\[\](){}<>|+=:;,./?-]`, Operator, nil},
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{`\n`, Text, nil},
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},
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"class": {
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{`([^\W\d]|\$)[\w$]*`, NameClass, Pop(1)},
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},
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"import": {
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{`[\w.]+\*?`, NameNamespace, Pop(1)},
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},
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},
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))
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