WebDSL-Lexical.sdf3
pdmosses/webdsl-statix/webdslstatix/syntax/WebDSL-Lexical.sdf3
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module
lexical sorts
TemplateId VarId FAVarId FunId
lexical syntax
= Id
= QId "." Id
TemplateId = Id %% hook for reject rules on templatecall names
VarId = Id
FAVarId = VarId
FunId = Id
= Id
= [a-zA-Z] [a-zA-Z0-9\_]*
= [a-zA-Z] [a-zA-Z0-9\_\-]*
= [a-zA-Z0-9\_\.] [a-zA-Z0-9\-\_\.]*
= ~[\n\r]*
context-free sorts
ModulePart ImportName OptWildcardImport
context-free syntax
ModulePart.ModulePart = <<ExtendedId>>
OptWildcardImport.WildcardImport = "/-"
OptWildcardImport.NoWildcardImport = <>
syntax
-CF.ModuleName = { ModulePart-CF "/"}+
ImportName-CF.ImportName = ModuleName-CF OptWildcardImport-CF
lexical restrictions
Id -/- [a-zA-Z0-9\_]
PageId -/- [a-zA-Z0-9\_\-]
ModuleName -/- [a-zA-Z0-9\/]
lexical sorts
Long ExponentPart
lexical syntax
= "-"? [0-9]+
Long = "-"? [0-9]+ "L"
= "-"? FloatDigits ExponentPart? [fFdD]?
= [0-9]* "." [0-9]+
= [0-9]+
ExponentPart = [eE] SignedInteger
= [\+\-]? [0-9]+
= "-"? [0-9]+ {reject}
= "." {reject}
lexical restrictions
Int -/- [0-9]
Int -/- [L] // to avoid longs getting parsed as an integer followed by a template call
Int -/- [eEfFdD] // to avoid floats getting parsed as an integer followed by a template call
Float -/- [fFdD]
FloatDigits -/- [0-9]
SignedInteger -/- [0-9]
context-free sorts
StringPart
%% Kernel syntax is required here since we do not want LAYOUT to be parsed between
%% the first QMLex and StringLex
syntax
-CF.String = "\"" StringPart-CF* "\""
StringPart-CF.StringValue = StringLex-LEX
StringPart-CF.InterpValue = "~" StringInterpExp-CF
-CF.InterpSimpleExp = SimpleExp-CF
context-free restrictions
StringInterpExp -/- [\.\(]
context-free sorts
OutputShorthand
context-free syntax
%% ~SimpleExp and ~(Exp) shorthand for output template call
OutputShorthand.OutputShorthandSimpleExp = "~" SimpleExp
context-free sorts
context-free syntax
%% SimpleExp: specific commonly occuring expressions allowed directly after '~' inside string
%% allowing all expressions directly after '~' causes too many ambiguities
%% parentheses expression is used as delimiter for inserting any expression
%% allowed after '~': var/fieldaccess/thiscall/call/brackets a, a.b, a(), a.b(), (exp)
%% a '.' after a SimpleExp must be rejected as part of String to avoid amb, e.g. not allowed: "~a."
%% in these cases, use '()' if a '.' is needed as part of the string, e.g. allowed: "~(a)."
.SimpleVar = Id
.SimpleFieldAccess = <<SimpleExp> . <PropertyId>>
lexical sorts
QMLex StringChar
lexical syntax
QMLex = "\""
= StringChar+
StringChar = ~[\"\n\~\\]
StringChar = "\\" [0-9btnfr\'\"\\\~]
= [0-9a-fA-F]
StringChar = "\\u" HexPart HexPart HexPart HexPart
lexical restrictions
StringLex -/- ~[\"\n\~]
lexical sorts
NewLineEOF
lexical syntax
LAYOUT = [\ \t\n\r]
LAYOUT = "//" ~[\n\r]* NewLineEOF
LAYOUT = "/*" * "*/"
= ~[\*]
=
= [\*]
NewLineEOF = [\n\r]
NewLineEOF = EOF
=
lexical restrictions
-/- [\/]
EOF -/- ~[]
context-free restrictions
LAYOUT? -/- [\ \t\n\r]
LAYOUT? -/- [\/].[\/]
LAYOUT? -/- [\/].[\*]
SectionName -/- ~[\n\r]
lexical sorts
lexical syntax
= ~[\ \t\n\r\}]+
lexical restrictions
Word -/- ~[\ \t\n\r\}]
lexical sorts
GenericSortLex
lexical syntax
= [A-Z] [a-zA-Z0-9\_]*
GenericSortLex = Id
GenericSortLex = "Ref" {reject}
lexical restrictions
SimpleSortLex -/- [a-zA-Z0-9\_]
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