regexper-static/src/js/parser/javascript/grammar.peg

grammar JavascriptRegexp
  root <- ( ( "/" regexp "/" _flags:[igm]* ) / regexp ""? ) <Root>
  regexp <- _match:match _alternates:( "|" match )* <Regexp>
  match <- _anchor_start:anchor_start?
           (!repeat) _parts:match_fragment*
           _anchor_end:anchor_end? <Match>
  match_fragment <- _content:( subexp / charset / terminal ) _repeat:repeat? <MatchFragment>
  anchor_start <- "^"
  anchor_end <- "$"
  repeat <- _spec:( repeat_any / repeat_required / repeat_optional / repeat_spec ) _greedy:repeat_greedy? <Repeat>
  repeat_any <- "*" <RepeatAny>
  repeat_required <- "+" <RepeatRequired>
  repeat_optional <- "?" <RepeatOptional>
  repeat_spec <- ( "{" _min:[0-9]+ "," _max:[0-9]+ "}"
                 / "{" _min:[0-9]+ ",}"
                 / "{" _exact:[0-9]+ "}" ) <RepeatSpec>
  repeat_greedy <- "?"
  subexp <- "(" _capture:( subexp_no_capture / subexp_positive_lookahead / subexp_negative_lookahead )? regexp ")" <Subexp>
  subexp_no_capture <- "?:"
  subexp_positive_lookahead <- "?="
  subexp_negative_lookahead <- "?!"
  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 <- ( ""? literal:[^\\\]] ) / ( "\\" literal:. )
  terminal <- any_character <AnyCharacter>
            / escape <Escape>
            / literal <Literal>
  any_character <- "."
  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:[^|\\/.\[\(\)?+*$^] ) / ( "\\" literal:. )
Adding initial cut of JS regexp parser 2014-11-26 00:37:54 +00:00			`grammar JavascriptRegexp`
Changing names of grammar elements. Starting with an "_" will prevent collisions with extensions 2014-12-03 00:59:10 +00:00			`root <- ( ( "/" regexp "/" _flags:[igm]* ) / regexp ""? ) <Root>`
			`regexp <- _match:match _alternates:( "\|" match )* <Regexp>`
			`match <- _anchor_start:anchor_start?`
Adding code to render loop and skip paths for repetitions This currently breaks the rendering and will need more work. Also need to add labels for {a,b} syntax 2014-12-06 17:34:00 +00:00			`(!repeat) _parts:match_fragment*`
Changing names of grammar elements. Starting with an "_" will prevent collisions with extensions 2014-12-03 00:59:10 +00:00			`_anchor_end:anchor_end? <Match>`
Adding code to render loop and skip paths for repetitions This currently breaks the rendering and will need more work. Also need to add labels for {a,b} syntax 2014-12-06 17:34:00 +00:00			`match_fragment <- _content:( subexp / charset / terminal ) _repeat:repeat? <MatchFragment>`
Adding initial cut of JS regexp parser 2014-11-26 00:37:54 +00:00			`anchor_start <- "^"`
			`anchor_end <- "$"`
Adding code to render loop and skip paths for repetitions This currently breaks the rendering and will need more work. Also need to add labels for {a,b} syntax 2014-12-06 17:34:00 +00:00			`repeat <- _spec:( repeat_any / repeat_required / repeat_optional / repeat_spec ) _greedy:repeat_greedy? <Repeat>`
			`repeat_any <- "*" <RepeatAny>`
			`repeat_required <- "+" <RepeatRequired>`
			`repeat_optional <- "?" <RepeatOptional>`
			`repeat_spec <- ( "{" _min:[0-9]+ "," _max:[0-9]+ "}"`
			`/ "{" _min:[0-9]+ ",}"`
			`/ "{" _exact:[0-9]+ "}" ) <RepeatSpec>`
Adding initial cut of JS regexp parser 2014-11-26 00:37:54 +00:00			`repeat_greedy <- "?"`
Adding rendering for Subexp 2014-12-08 02:16:23 +00:00			`subexp <- "(" _capture:( subexp_no_capture / subexp_positive_lookahead / subexp_negative_lookahead )? regexp ")" <Subexp>`
Adding initial cut of JS regexp parser 2014-11-26 00:37:54 +00:00			`subexp_no_capture <- "?:"`
			`subexp_positive_lookahead <- "?="`
			`subexp_negative_lookahead <- "?!"`
Adding code to render charsets 2014-12-07 22:38:24 +00:00			`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>`
Adding rendering code for escape, literal, and "." 2014-12-07 20:26:45 +00:00			`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] ) )`
Adding code to render charsets 2014-12-07 22:38:24 +00:00			`charset_literal <- ( ""? literal:[^\\\]] ) / ( "\\" literal:. )`
Removing Terminal type and replacing with Literal, Escape, and AnyChar This is to eventually simplify the combining of Literals together (and to actually make it work correctly, since terminals should not have been merged) 2014-12-06 21:03:58 +00:00			`terminal <- any_character <AnyCharacter>`
			`/ escape <Escape>`
			`/ literal <Literal>`
Adding initial cut of JS regexp parser 2014-11-26 00:37:54 +00:00			`any_character <- "."`
Adding rendering code for escape, literal, and "." 2014-12-07 20:26:45 +00:00			`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:""? )`
Removing Terminal type and replacing with Literal, Escape, and AnyChar This is to eventually simplify the combining of Literals together (and to actually make it work correctly, since terminals should not have been merged) 2014-12-06 21:03:58 +00:00			`literal <- ( ""? literal:[^\|\\/.\[\(\)?+*$^] ) / ( "\\" literal:. )`