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author | Li Haoyi <haoyi@dropbox.com> | 2014-12-03 22:46:04 -0800 |
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committer | Li Haoyi <haoyi@dropbox.com> | 2014-12-03 22:46:04 -0800 |
commit | bac53bef685f4e00e7061923dcd57dea4f9e229b (patch) | |
tree | 01f891d69c0535aba2b0ad3baeb9278301e230fc /scalatex/scalaParser/src/main/scala/scalaParser/syntax/Identifiers.scala | |
parent | df33a5cabf8692110f81c9ef60015bea51fbf2dc (diff) | |
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scalatex broken out into separate project which needs to be published separately
Diffstat (limited to 'scalatex/scalaParser/src/main/scala/scalaParser/syntax/Identifiers.scala')
-rw-r--r-- | scalatex/scalaParser/src/main/scala/scalaParser/syntax/Identifiers.scala | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/scalatex/scalaParser/src/main/scala/scalaParser/syntax/Identifiers.scala b/scalatex/scalaParser/src/main/scala/scalaParser/syntax/Identifiers.scala new file mode 100644 index 0000000..4bc972f --- /dev/null +++ b/scalatex/scalaParser/src/main/scala/scalaParser/syntax/Identifiers.scala @@ -0,0 +1,35 @@ +package scalaParser +package syntax +import acyclic.file +import org.parboiled2._ + +trait Identifiers { self: Parser with Basic => + object Identifiers{ + import Basic._ + def Operator = rule(oneOrMore(OperatorChar)) + + def VarId = rule { + !(Keywords ~ (WhitespaceChar | Newline | "//" | "/*")) ~ Lower ~ IdRest + } + def PlainId = rule { Upper ~ IdRest | VarId | !(Keywords ~ (WhitespaceChar | Newline | "//" | "/*")) ~ Operator } + def Id = rule { PlainId | ("`" ~ oneOrMore(noneOf("`")) ~ "`") } + def IdRest = rule { + zeroOrMore(zeroOrMore("_") ~ oneOrMore(!"_" ~ Letter | Digit)) ~ + optional(oneOrMore("_") ~ optional(Operator)) + } + + + def AlphabetKeywords = rule { + "abstract" | "case" | "catch" | "class" | "def" | "do" | "else" | "extends" | "false" | "finally" | "final" | "finally" | "forSome" | "for" | "if" | + "implicit" | "import" | "lazy" | "match" | "new" | "null" | "object" | "override" | "package" | "private" | "protected" | "return" | + "sealed" | "super" | "this" | "throw" | "trait" | "try" | "true" | "type" | "val" | "var" | "while" | "with" | "yield" | "_" + } + def SymbolicKeywords = rule{ + ":" | ";" | "=>" | "=" | "<-" | "<:" | "<%" | ">:" | "#" | "@" | "\u21d2" | "\u2190" + } + def Keywords = rule { + AlphabetKeywords ~ !Letter | SymbolicKeywords ~ !OperatorChar + + } + } +} |