diff options
Diffstat (limited to 'vendor/github.com/naoina/toml/parse.peg')
-rw-r--r-- | vendor/github.com/naoina/toml/parse.peg | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/vendor/github.com/naoina/toml/parse.peg b/vendor/github.com/naoina/toml/parse.peg new file mode 100644 index 000000000..da31dae30 --- /dev/null +++ b/vendor/github.com/naoina/toml/parse.peg @@ -0,0 +1,145 @@ +package toml + +type tomlParser Peg { + toml +} + +TOML <- Expression (newline Expression)* newline? !. { _ = buffer } + +Expression <- ( + <ws table ws comment? (wsnl keyval ws comment?)*> { p.SetTableString(begin, end) } + / ws keyval ws comment? + / ws comment? + / ws +) + +newline <- <[\r\n]+> { p.AddLineCount(end - begin) } + +ws <- [ \t]* +wsnl <- ( + [ \t] + / <[\r\n]> { p.AddLineCount(end - begin) } +)* + +comment <- '#' <[\t -\0x10FFFF]*> + +keyval <- key ws '=' ws val { p.AddKeyValue() } + +key <- bareKey / quotedKey + +bareKey <- <[0-9A-Za-z\-_]+> { p.SetKey(p.buffer, begin, end) } + +quotedKey <- '"' <basicChar+> '"' { p.SetKey(p.buffer, begin-1, end+1) } + +val <- ( + <datetime> { p.SetTime(begin, end) } + / <float> { p.SetFloat64(begin, end) } + / <integer> { p.SetInt64(begin, end) } + / <string> { p.SetString(begin, end) } + / <boolean> { p.SetBool(begin, end) } + / <array> { p.SetArray(begin, end) } + / inlineTable +) + +table <- stdTable / arrayTable + +stdTable <- '[' ws <tableKey> ws ']' { p.SetTable(p.buffer, begin, end) } + +arrayTable <- '[[' ws <tableKey> ws ']]' { p.SetArrayTable(p.buffer, begin, end) } + +inlineTable <- ( + '{' { p.StartInlineTable() } + ws inlineTableKeyValues ws + '}' { p.EndInlineTable() } +) + +inlineTableKeyValues <- (keyval inlineTableValSep?)* + +tableKey <- key (tableKeySep key)* + +tableKeySep <- ws '.' ws + +inlineTableValSep <- ws ',' ws + +integer <- [\-+]? int +int <- [1-9] (digit / '_' digit)+ / digit + +float <- integer (frac exp? / frac? exp) +frac <- '.' digit (digit / '_' digit)* +exp <- [eE] [\-+]? digit (digit / '_' digit)* + +string <- ( + mlLiteralString + / literalString + / mlBasicString + / basicString +) + +basicString <- <'"' basicChar* '"'> { p.SetBasicString(p.buffer, begin, end) } + +basicChar <- basicUnescaped / escaped +escaped <- escape ([btnfr"/\\] / 'u' hexQuad / 'U' hexQuad hexQuad) + +basicUnescaped <- [ -!#-\[\]-\0x10FFFF] + +escape <- '\\' + +mlBasicString <- '"""' mlBasicBody '"""' { p.SetMultilineString() } + +mlBasicBody <- ( + <basicChar / newline> { p.AddMultilineBasicBody(p.buffer, begin, end) } + / escape newline wsnl +)* + +literalString <- "'" <literalChar*> "'" { p.SetLiteralString(p.buffer, begin, end) } + +literalChar <- [\t -&(-\0x10FFFF] + +mlLiteralString <- "'''" <mlLiteralBody> "'''" { p.SetMultilineLiteralString(p.buffer, begin, end) } + +mlLiteralBody <- (!"'''" (mlLiteralChar / newline))* + +mlLiteralChar <- [\t -\0x10FFFF] + +hexdigit <- [0-9A-Fa-f] +hexQuad <- hexdigit hexdigit hexdigit hexdigit + +boolean <- 'true' / 'false' + +dateFullYear <- digitQuad +dateMonth <- digitDual +dateMDay <- digitDual +timeHour <- digitDual +timeMinute <- digitDual +timeSecond <- digitDual +timeSecfrac <- '.' digit+ +timeNumoffset <- [\-+] timeHour ':' timeMinute +timeOffset <- 'Z' / timeNumoffset +partialTime <- timeHour ':' timeMinute ':' timeSecond timeSecfrac? +fullDate <- dateFullYear '-' dateMonth '-' dateMDay +fullTime <- partialTime timeOffset +datetime <- (fullDate ('T' fullTime)?) / partialTime + +digit <- [0-9] +digitDual <- digit digit +digitQuad <- digitDual digitDual + +array <- ( + '[' { p.StartArray() } + wsnl arrayValues? wsnl + ']' +) + +arrayValues <- ( + val { p.AddArrayVal() } + ( + wsnl comment? + wsnl arraySep + wsnl comment? + wsnl val { p.AddArrayVal() } + )* + wsnl arraySep? + wsnl comment? +) + +arraySep <- ',' |