74 lines
3.6 KiB
Go
74 lines
3.6 KiB
Go
package v
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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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const vbName = `[_\w][\w]*`
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// VB.Net lexer.
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var VBNet = internal.Register(MustNewLexer(
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&Config{
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Name: "VB.net",
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Aliases: []string{"vb.net", "vbnet"},
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Filenames: []string{"*.vb", "*.bas"},
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MimeTypes: []string{"text/x-vbnet", "text/x-vba"},
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CaseInsensitive: true,
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},
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Rules{
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"root": {
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{`^\s*<.*?>`, NameAttribute, nil},
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{`\s+`, Text, nil},
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{`\n`, Text, nil},
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{`rem\b.*?\n`, Comment, nil},
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{`'.*?\n`, Comment, nil},
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{`#If\s.*?\sThen|#ElseIf\s.*?\sThen|#Else|#End\s+If|#Const|#ExternalSource.*?\n|#End\s+ExternalSource|#Region.*?\n|#End\s+Region|#ExternalChecksum`, CommentPreproc, nil},
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{`[(){}!#,.:]`, Punctuation, nil},
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{`Option\s+(Strict|Explicit|Compare)\s+(On|Off|Binary|Text)`, KeywordDeclaration, nil},
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{Words(`(?<!\.)`, `\b`, `AddHandler`, `Alias`, `ByRef`, `ByVal`, `Call`, `Case`, `Catch`, `CBool`, `CByte`, `CChar`, `CDate`, `CDec`, `CDbl`, `CInt`, `CLng`, `CObj`, `Continue`, `CSByte`, `CShort`, `CSng`, `CStr`, `CType`, `CUInt`, `CULng`, `CUShort`, `Declare`, `Default`, `Delegate`, `DirectCast`, `Do`, `Each`, `Else`, `ElseIf`, `EndIf`, `Erase`, `Error`, `Event`, `Exit`, `False`, `Finally`, `For`, `Friend`, `Get`, `Global`, `GoSub`, `GoTo`, `Handles`, `If`, `Implements`, `Inherits`, `Interface`, `Let`, `Lib`, `Loop`, `Me`, `MustInherit`, `MustOverride`, `MyBase`, `MyClass`, `Narrowing`, `New`, `Next`, `Not`, `Nothing`, `NotInheritable`, `NotOverridable`, `Of`, `On`, `Operator`, `Option`, `Optional`, `Overloads`, `Overridable`, `Overrides`, `ParamArray`, `Partial`, `Private`, `Protected`, `Public`, `RaiseEvent`, `ReadOnly`, `ReDim`, `RemoveHandler`, `Resume`, `Return`, `Select`, `Set`, `Shadows`, `Shared`, `Single`, `Static`, `Step`, `Stop`, `SyncLock`, `Then`, `Throw`, `To`, `True`, `Try`, `TryCast`, `Wend`, `Using`, `When`, `While`, `Widening`, `With`, `WithEvents`, `WriteOnly`), Keyword, nil},
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{`(?<!\.)End\b`, Keyword, Push("end")},
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{`(?<!\.)(Dim|Const)\b`, Keyword, Push("dim")},
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{`(?<!\.)(Function|Sub|Property)(\s+)`, ByGroups(Keyword, Text), Push("funcname")},
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{`(?<!\.)(Class|Structure|Enum)(\s+)`, ByGroups(Keyword, Text), Push("classname")},
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{`(?<!\.)(Module|Namespace|Imports)(\s+)`, ByGroups(Keyword, Text), Push("namespace")},
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{`(?<!\.)(Boolean|Byte|Char|Date|Decimal|Double|Integer|Long|Object|SByte|Short|Single|String|Variant|UInteger|ULong|UShort)\b`, KeywordType, nil},
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{`(?<!\.)(AddressOf|And|AndAlso|As|GetType|In|Is|IsNot|Like|Mod|Or|OrElse|TypeOf|Xor)\b`, OperatorWord, nil},
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{`&=|[*]=|/=|\\=|\^=|\+=|-=|<<=|>>=|<<|>>|:=|<=|>=|<>|[-&*/\\^+=<>\[\]]`, Operator, nil},
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{`"`, LiteralString, Push("string")},
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{`_\n`, Text, nil},
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{vbName, Name, nil},
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{`#.*?#`, LiteralDate, nil},
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{`(\d+\.\d*|\d*\.\d+)(F[+-]?[0-9]+)?`, LiteralNumberFloat, nil},
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{`\d+([SILDFR]|US|UI|UL)?`, LiteralNumberInteger, nil},
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{`&H[0-9a-f]+([SILDFR]|US|UI|UL)?`, LiteralNumberInteger, nil},
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{`&O[0-7]+([SILDFR]|US|UI|UL)?`, LiteralNumberInteger, nil},
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},
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"string": {
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{`""`, LiteralString, nil},
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{`"C?`, LiteralString, Pop(1)},
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{`[^"]+`, LiteralString, nil},
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},
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"dim": {
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{vbName, NameVariable, Pop(1)},
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Default(Pop(1)),
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},
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"funcname": {
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{vbName, NameFunction, Pop(1)},
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},
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"classname": {
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{vbName, NameClass, Pop(1)},
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},
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"namespace": {
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{vbName, NameNamespace, nil},
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{`\.`, NameNamespace, nil},
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Default(Pop(1)),
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},
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"end": {
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{`\s+`, Text, nil},
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{`(Function|Sub|Property|Class|Structure|Enum|Module|Namespace)\b`, Keyword, Pop(1)},
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Default(Pop(1)),
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},
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},
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))
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