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49 lines
2.6 KiB
Go
49 lines
2.6 KiB
Go
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package b
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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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// Blitzbasic lexer.
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var Blitzbasic = internal.Register(MustNewLexer(
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&Config{
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Name: "BlitzBasic",
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Aliases: []string{"blitzbasic", "b3d", "bplus"},
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Filenames: []string{"*.bb", "*.decls"},
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MimeTypes: []string{"text/x-bb"},
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CaseInsensitive: true,
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},
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Rules{
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"root": {
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{`[ \t]+`, Text, nil},
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{`;.*?\n`, CommentSingle, nil},
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{`"`, LiteralStringDouble, Push("string")},
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{`[0-9]+\.[0-9]*(?!\.)`, LiteralNumberFloat, nil},
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{`\.[0-9]+(?!\.)`, LiteralNumberFloat, nil},
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{`[0-9]+`, LiteralNumberInteger, nil},
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{`\$[0-9a-f]+`, LiteralNumberHex, nil},
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{`\%[10]+`, LiteralNumberBin, nil},
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{Words(`\b`, `\b`, `Shl`, `Shr`, `Sar`, `Mod`, `Or`, `And`, `Not`, `Abs`, `Sgn`, `Handle`, `Int`, `Float`, `Str`, `First`, `Last`, `Before`, `After`), Operator, nil},
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{`([+\-*/~=<>^])`, Operator, nil},
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{`[(),:\[\]\\]`, Punctuation, nil},
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{`\.([ \t]*)([a-z]\w*)`, NameLabel, nil},
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{`\b(New)\b([ \t]+)([a-z]\w*)`, ByGroups(KeywordReserved, Text, NameClass), nil},
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{`\b(Gosub|Goto)\b([ \t]+)([a-z]\w*)`, ByGroups(KeywordReserved, Text, NameLabel), nil},
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{`\b(Object)\b([ \t]*)([.])([ \t]*)([a-z]\w*)\b`, ByGroups(Operator, Text, Punctuation, Text, NameClass), nil},
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{`\b([a-z]\w*)(?:([ \t]*)(@{1,2}|[#$%])|([ \t]*)([.])([ \t]*)(?:([a-z]\w*)))?\b([ \t]*)(\()`, ByGroups(NameFunction, Text, KeywordType, Text, Punctuation, Text, NameClass, Text, Punctuation), nil},
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{`\b(Function)\b([ \t]+)([a-z]\w*)(?:([ \t]*)(@{1,2}|[#$%])|([ \t]*)([.])([ \t]*)(?:([a-z]\w*)))?`, ByGroups(KeywordReserved, Text, NameFunction, Text, KeywordType, Text, Punctuation, Text, NameClass), nil},
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{`\b(Type)([ \t]+)([a-z]\w*)`, ByGroups(KeywordReserved, Text, NameClass), nil},
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{`\b(Pi|True|False|Null)\b`, KeywordConstant, nil},
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{`\b(Local|Global|Const|Field|Dim)\b`, KeywordDeclaration, nil},
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{Words(`\b`, `\b`, `End`, `Return`, `Exit`, `Chr`, `Len`, `Asc`, `New`, `Delete`, `Insert`, `Include`, `Function`, `Type`, `If`, `Then`, `Else`, `ElseIf`, `EndIf`, `For`, `To`, `Next`, `Step`, `Each`, `While`, `Wend`, `Repeat`, `Until`, `Forever`, `Select`, `Case`, `Default`, `Goto`, `Gosub`, `Data`, `Read`, `Restore`), KeywordReserved, nil},
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{`([a-z]\w*)(?:([ \t]*)(@{1,2}|[#$%])|([ \t]*)([.])([ \t]*)(?:([a-z]\w*)))?`, ByGroups(NameVariable, Text, KeywordType, Text, Punctuation, Text, NameClass), nil},
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},
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"string": {
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{`""`, LiteralStringDouble, nil},
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{`"C?`, LiteralStringDouble, Pop(1)},
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{`[^"]+`, LiteralStringDouble, nil},
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},
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},
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))
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