newline = ${ "\n" | "\r" }
space = ${ " "+ }
other = ${ !(string) ~ ANY }
comment = ${ multiline_comment | single_line_comment }
single_line_comment = _{ "/" ~ ("!" | "/")* ~ (!(newline) ~ ANY)* }
multiline_comment = _{ "/*" ~ (!("*/") ~ ANY)* ~ "*/"}
string = ${
PUSH("\"") ~ string_value ~ POP
| "r" ~ PUSH("#"*) ~ "\"" ~ string_value ~ "\"" ~ POP
}
string_value = @{ (!(PEEK) ~ ANY)* }
regexp = ${
( "r\"" ~ (!(newline | "\"") ~ ANY)* ~ "\"" )
}
line = _{ regexp | string | comment | space | other | newline }
item = _{ SOI ~ line* ~ EOI }