cheat/vendor/github.com/alecthomas/chroma/lexers/v/vb.go

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package v
import (
. "github.com/alecthomas/chroma" // nolint
"github.com/alecthomas/chroma/lexers/internal"
)
const vbName = `[_\w][\w]*`
// VB.Net lexer.
var VBNet = internal.Register(MustNewLazyLexer(
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&Config{
Name: "VB.net",
Aliases: []string{"vb.net", "vbnet"},
Filenames: []string{"*.vb", "*.bas"},
MimeTypes: []string{"text/x-vbnet", "text/x-vba"},
CaseInsensitive: true,
},
vbNetRules,
))
func vbNetRules() Rules {
return Rules{
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"root": {
{`^\s*<.*?>`, NameAttribute, nil},
{`\s+`, Text, nil},
{`\n`, Text, nil},
{`rem\b.*?\n`, Comment, nil},
{`'.*?\n`, Comment, nil},
{`#If\s.*?\sThen|#ElseIf\s.*?\sThen|#Else|#End\s+If|#Const|#ExternalSource.*?\n|#End\s+ExternalSource|#Region.*?\n|#End\s+Region|#ExternalChecksum`, CommentPreproc, nil},
{`[(){}!#,.:]`, Punctuation, nil},
{`Option\s+(Strict|Explicit|Compare)\s+(On|Off|Binary|Text)`, KeywordDeclaration, nil},
{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},
{`(?<!\.)End\b`, Keyword, Push("end")},
{`(?<!\.)(Dim|Const)\b`, Keyword, Push("dim")},
{`(?<!\.)(Function|Sub|Property)(\s+)`, ByGroups(Keyword, Text), Push("funcname")},
{`(?<!\.)(Class|Structure|Enum)(\s+)`, ByGroups(Keyword, Text), Push("classname")},
{`(?<!\.)(Module|Namespace|Imports)(\s+)`, ByGroups(Keyword, Text), Push("namespace")},
{`(?<!\.)(Boolean|Byte|Char|Date|Decimal|Double|Integer|Long|Object|SByte|Short|Single|String|Variant|UInteger|ULong|UShort)\b`, KeywordType, nil},
{`(?<!\.)(AddressOf|And|AndAlso|As|GetType|In|Is|IsNot|Like|Mod|Or|OrElse|TypeOf|Xor)\b`, OperatorWord, nil},
{`&=|[*]=|/=|\\=|\^=|\+=|-=|<<=|>>=|<<|>>|:=|<=|>=|<>|[-&*/\\^+=<>\[\]]`, Operator, nil},
{`"`, LiteralString, Push("string")},
{`_\n`, Text, nil},
{vbName, Name, nil},
{`#.*?#`, LiteralDate, nil},
{`(\d+\.\d*|\d*\.\d+)(F[+-]?[0-9]+)?`, LiteralNumberFloat, nil},
{`\d+([SILDFR]|US|UI|UL)?`, LiteralNumberInteger, nil},
{`&H[0-9a-f]+([SILDFR]|US|UI|UL)?`, LiteralNumberInteger, nil},
{`&O[0-7]+([SILDFR]|US|UI|UL)?`, LiteralNumberInteger, nil},
},
"string": {
{`""`, LiteralString, nil},
{`"C?`, LiteralString, Pop(1)},
{`[^"]+`, LiteralString, nil},
},
"dim": {
{vbName, NameVariable, Pop(1)},
Default(Pop(1)),
},
"funcname": {
{vbName, NameFunction, Pop(1)},
},
"classname": {
{vbName, NameClass, Pop(1)},
},
"namespace": {
{vbName, NameNamespace, nil},
{`\.`, NameNamespace, nil},
Default(Pop(1)),
},
"end": {
{`\s+`, Text, nil},
{`(Function|Sub|Property|Class|Structure|Enum|Module|Namespace)\b`, Keyword, Pop(1)},
Default(Pop(1)),
},
}
}