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Adding rendering code for escape, literal, and "."

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This commit is contained in:
Jeff Avallone
2014-12-07 15:26:45 -05:00
parent f5d1e734f1
commit 9cc23183be
5 changed files with 104 additions and 61 deletions
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src/js/parser/javascript/grammar.peg
+12 -56
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@@ -23,65 +23,21 @@ grammar JavascriptRegexp
charset <- "[" "^"? ( charset_range / charset_terminal )* "]" <Charset>
charset_range <- charset_terminal "-" charset_terminal
charset_terminal <- charset_escape / charset_literal
charset_escape <- ( backspace_esc
/ control_esc
/ digit_esc
/ non_digit_esc
/ form_feed_esc
/ line_feed_esc
/ carriage_return_esc
/ white_space_esc
/ non_white_space_esc
/ tab_esc
/ vertical_tab_esc
/ word_esc
/ non_word_esc
/ octal_esc
/ hex_esc
/ unicode_esc
/ null_esc )
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 <- [^\\\]] / ( "\\" . )
terminal <- any_character <AnyCharacter>
/ escape <Escape>
/ literal <Literal>
any_character <- "."
escape <- ( word_boundary_esc
/ non_word_boundary_esc
/ control_esc
/ digit_esc
/ non_digit_esc
/ form_feed_esc
/ line_feed_esc
/ carriage_return_esc
/ white_space_esc
/ non_white_space_esc
/ tab_esc
/ vertical_tab_esc
/ word_esc
/ non_word_esc
/ back_reference
/ octal_esc
/ hex_esc
/ unicode_esc
/ null_esc )
escape <- "\\" esc:(
code:[bBdDfnrsStvwW1-9] arg:""?
/ code:"c" 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] )
/ code:"0" arg:""? )
literal <- ( ""? literal:[^|\\/.\[\(\)?+*$^] ) / ( "\\" literal:. )
back_reference <- "\\" [1-9]
word_boundary_esc <- "\\b"
non_word_boundary_esc <- "\\B"
backspace_esc <- "\\b"
control_esc <- "\\b" .
digit_esc <- "\\d"
non_digit_esc <- "\\D"
form_feed_esc <- "\\f"
line_feed_esc <- "\\n"
carriage_return_esc <- "\\r"
white_space_esc <- "\\s"
non_white_space_esc <- "\\S"
tab_esc <- "\\t"
vertical_tab_esc <- "\\v"
word_esc <- "\\w"
non_word_esc <- "\\W"
octal_esc <- "\\0" [0-7]+
hex_esc <- "\\x" [0-9a-fA-F] [0-9a-fA-F]
unicode_esc <- "\\u" [0-9a-fA-F] [0-9a-fA-F] [0-9a-fA-F] [0-9a-fA-F]
null_esc <- "\\0"