module languages/php/common/literals/singleQuotedStringLiterals

rules
// The main printer for strings
  php-to-box :
    SingleQuoted(parts) -> H([SOpt(HS(), "0")], [ S("'") | [ str | [ S("'") ] ] ])
H hs=0 [ "'" ~str "'" ]
       where <lit-of-esc-to-string> parts => str