valve-kv.pest

WHITESPACE = _{ " " | "\t" | "\r" | "\n" }
COMMENT = { line_comment | block_comment }
line_comment = { "//" ~ (!"\n" ~ ANY)* }
block_comment = { "/*" ~ (!"*/" ~ ANY)* ~ "*/" }
keyvalue = { key ~ (value | section) }
l_brace = { "{" }
r_brace = { "}" }
section = { l_brace ~ keyvalue* ~ r_brace }
key = { string }
value = { string }
string = ${ "\"" ~ inner ~ "\"" }
inner = @{ char* }
char = {
    !("\"" | "\\") ~ ANY
    | "\\" ~ ("\"" | "\\" | "/" | "b" | "f" | "n" | "r" | "t")
    | "\\" ~ ("u" ~ ASCII_HEX_DIGIT{4})
}
start = { SOI ~ keyvalue ~ EOI }