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Adding code to render charsets

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This commit is contained in:
Jeff Avallone
2014-12-07 17:38:24 -05:00
parent 9cc23183be
commit fadfaee440
8 changed files with 103 additions and 6 deletions
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src/js/parser/javascript/grammar.peg
+5 -4
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@@ -20,15 +20,16 @@ grammar JavascriptRegexp
subexp_no_capture <- "?:"
subexp_positive_lookahead <- "?="
subexp_negative_lookahead <- "?!"
charset <- "[" "^"? ( charset_range / charset_terminal )* "]" <Charset>
charset_range <- charset_terminal "-" charset_terminal
charset_terminal <- charset_escape / charset_literal
charset <- "[" _invert:"^"? parts:( charset_range / charset_terminal )* "]" <Charset>
charset_range <- first:charset_terminal "-" last:charset_terminal <CharsetRange>
charset_terminal <- charset_escape <CharsetEscape>
/ charset_literal <CharsetLiteral>
charset_escape <- "\\" esc:(
code:[bdDfnrsStvwW] arg:""?
/ code:"0" arg:[0-7]+
/ code:"x" arg:( [0-9a-fA-F] [0-9a-fA-F] )
/ code:"u" arg:( [0-9a-fA-F] [0-9a-fA-F] [0-9a-fA-F] [0-9a-fA-F] ) )
charset_literal <- [^\\\]] / ( "\\" . )
charset_literal <- ( ""? literal:[^\\\]] ) / ( "\\" literal:. )
terminal <- any_character <AnyCharacter>
/ escape <Escape>
/ literal <Literal>