/escape\/slash/ /escape \/ slash \/ / /hello/ /hello world/ /\w+\s+(\d+)\s+\w+/ /(.+?): (.+)/ /(?<identifier>[[:alpha:]]\w*) = (?<hex>[0-9A-F]+)/ let p = /hello/ let n = /hello/ + /world/ - /nice/ let q = /hello/ / 2 (/hello/) method(value: /hello/) method(/hello/, world) method(/hello/, /world/) foo(/a, b/) // Will become regex literal '/a, b/' qux(/, !/) // Will become regex literal '/, !/' qux(/,/) // Will become regex literal '/,/' let g = hasSubscript[/]/2 // Will become regex literal '/]/' let h = /0; let f = 1/ // Will become the regex literal '/0; let y = 1/' let i = /^x/ // Will become the regex literal '/^x/' // extended literals #/raw\/slashes/# #/raw \/ slashes \/ /# #/hello/# #/he/llo/# ##/hello/## ##/he/llo/## ###/hello/### ###/he/llo/### ####/hello/#### ####/he/llo/#### #/hello world/# #/\w+\s+(\d+)\s+\w+/# #/(.+?): (.+)/# let p = #/hello/# let n = #/hello/# + /world/ - #/nice/# let q = #/hello/# / 2 (#/hello/#) method(value: #/hello/#) method(#/hello/#, world) method(#/hello/#, #/world/#) #/regex with #not a comment/# // multiline extended literals let regex = #/ # Match a line of the format e.g "DEBIT 03/03/2022 Totally Legit Shell Corp $2,000,000.00" (?<kind> \w+) \s\s+ (?<date> \S+) \s\s+ (?<account> (?: (?!\s\s) . )+) \s\s+ # Note that account names may contain spaces. (?<amount> .*) /# #/ #regex comment # regex comment ## regex comment this is another extended regex literal /this is still in the regex/ 123 12 / 2 (/hello/) backslash escape literal newline\ newline explicit\n nice /# ##/ #regex comment # regex comment #/ regex comment multiline /## ###/ #regex comment # regex comment #/ regex comment multiline /### // whitespace 2 / 2 / 2 // not a regex 2 / 2 / 2 // not a regex 2 /2/ 2 // is a regex 2 /2 / 2 // is a regex 2 / 2/ 2 // not a regex 2 #/ 2 /# 2 // is a regex /\ escaped leading whitespace/ // is a regex x+/y/ // infix operator, not a regex x + /y/ // is a regex x+#/y/# // is a regex // structural struct Planet { var d = /test/ var e = #/test/# var n: Any { /test/ + #/test/# } } // unterminated /something another line /