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author | 2025-03-09 17:47:56 +0100 | |
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committer | 2025-03-10 01:59:49 +0100 | |
commit | 3ac1ee16f377d31a0fb80c8dae28b6239ac4229e (patch) | |
tree | f61faa581feaaeaba2542b9f2b8234a590684413 /vendor/github.com/pelletier/go-toml/v2/decode.go | |
parent | [chore] update URLs to forked source (diff) | |
download | gotosocial-3ac1ee16f377d31a0fb80c8dae28b6239ac4229e.tar.xz |
[chore] remove vendor
Diffstat (limited to 'vendor/github.com/pelletier/go-toml/v2/decode.go')
-rw-r--r-- | vendor/github.com/pelletier/go-toml/v2/decode.go | 550 |
1 files changed, 0 insertions, 550 deletions
diff --git a/vendor/github.com/pelletier/go-toml/v2/decode.go b/vendor/github.com/pelletier/go-toml/v2/decode.go deleted file mode 100644 index f0ec3b170..000000000 --- a/vendor/github.com/pelletier/go-toml/v2/decode.go +++ /dev/null @@ -1,550 +0,0 @@ -package toml - -import ( - "fmt" - "math" - "strconv" - "time" - - "github.com/pelletier/go-toml/v2/unstable" -) - -func parseInteger(b []byte) (int64, error) { - if len(b) > 2 && b[0] == '0' { - switch b[1] { - case 'x': - return parseIntHex(b) - case 'b': - return parseIntBin(b) - case 'o': - return parseIntOct(b) - default: - panic(fmt.Errorf("invalid base '%c', should have been checked by scanIntOrFloat", b[1])) - } - } - - return parseIntDec(b) -} - -func parseLocalDate(b []byte) (LocalDate, error) { - // full-date = date-fullyear "-" date-month "-" date-mday - // date-fullyear = 4DIGIT - // date-month = 2DIGIT ; 01-12 - // date-mday = 2DIGIT ; 01-28, 01-29, 01-30, 01-31 based on month/year - var date LocalDate - - if len(b) != 10 || b[4] != '-' || b[7] != '-' { - return date, unstable.NewParserError(b, "dates are expected to have the format YYYY-MM-DD") - } - - var err error - - date.Year, err = parseDecimalDigits(b[0:4]) - if err != nil { - return LocalDate{}, err - } - - date.Month, err = parseDecimalDigits(b[5:7]) - if err != nil { - return LocalDate{}, err - } - - date.Day, err = parseDecimalDigits(b[8:10]) - if err != nil { - return LocalDate{}, err - } - - if !isValidDate(date.Year, date.Month, date.Day) { - return LocalDate{}, unstable.NewParserError(b, "impossible date") - } - - return date, nil -} - -func parseDecimalDigits(b []byte) (int, error) { - v := 0 - - for i, c := range b { - if c < '0' || c > '9' { - return 0, unstable.NewParserError(b[i:i+1], "expected digit (0-9)") - } - v *= 10 - v += int(c - '0') - } - - return v, nil -} - -func parseDateTime(b []byte) (time.Time, error) { - // offset-date-time = full-date time-delim full-time - // full-time = partial-time time-offset - // time-offset = "Z" / time-numoffset - // time-numoffset = ( "+" / "-" ) time-hour ":" time-minute - - dt, b, err := parseLocalDateTime(b) - if err != nil { - return time.Time{}, err - } - - var zone *time.Location - - if len(b) == 0 { - // parser should have checked that when assigning the date time node - panic("date time should have a timezone") - } - - if b[0] == 'Z' || b[0] == 'z' { - b = b[1:] - zone = time.UTC - } else { - const dateTimeByteLen = 6 - if len(b) != dateTimeByteLen { - return time.Time{}, unstable.NewParserError(b, "invalid date-time timezone") - } - var direction int - switch b[0] { - case '-': - direction = -1 - case '+': - direction = +1 - default: - return time.Time{}, unstable.NewParserError(b[:1], "invalid timezone offset character") - } - - if b[3] != ':' { - return time.Time{}, unstable.NewParserError(b[3:4], "expected a : separator") - } - - hours, err := parseDecimalDigits(b[1:3]) - if err != nil { - return time.Time{}, err - } - if hours > 23 { - return time.Time{}, unstable.NewParserError(b[:1], "invalid timezone offset hours") - } - - minutes, err := parseDecimalDigits(b[4:6]) - if err != nil { - return time.Time{}, err - } - if minutes > 59 { - return time.Time{}, unstable.NewParserError(b[:1], "invalid timezone offset minutes") - } - - seconds := direction * (hours*3600 + minutes*60) - if seconds == 0 { - zone = time.UTC - } else { - zone = time.FixedZone("", seconds) - } - b = b[dateTimeByteLen:] - } - - if len(b) > 0 { - return time.Time{}, unstable.NewParserError(b, "extra bytes at the end of the timezone") - } - - t := time.Date( - dt.Year, - time.Month(dt.Month), - dt.Day, - dt.Hour, - dt.Minute, - dt.Second, - dt.Nanosecond, - zone) - - return t, nil -} - -func parseLocalDateTime(b []byte) (LocalDateTime, []byte, error) { - var dt LocalDateTime - - const localDateTimeByteMinLen = 11 - if len(b) < localDateTimeByteMinLen { - return dt, nil, unstable.NewParserError(b, "local datetimes are expected to have the format YYYY-MM-DDTHH:MM:SS[.NNNNNNNNN]") - } - - date, err := parseLocalDate(b[:10]) - if err != nil { - return dt, nil, err - } - dt.LocalDate = date - - sep := b[10] - if sep != 'T' && sep != ' ' && sep != 't' { - return dt, nil, unstable.NewParserError(b[10:11], "datetime separator is expected to be T or a space") - } - - t, rest, err := parseLocalTime(b[11:]) - if err != nil { - return dt, nil, err - } - dt.LocalTime = t - - return dt, rest, nil -} - -// parseLocalTime is a bit different because it also returns the remaining -// []byte that is didn't need. This is to allow parseDateTime to parse those -// remaining bytes as a timezone. -func parseLocalTime(b []byte) (LocalTime, []byte, error) { - var ( - nspow = [10]int{0, 1e8, 1e7, 1e6, 1e5, 1e4, 1e3, 1e2, 1e1, 1e0} - t LocalTime - ) - - // check if b matches to have expected format HH:MM:SS[.NNNNNN] - const localTimeByteLen = 8 - if len(b) < localTimeByteLen { - return t, nil, unstable.NewParserError(b, "times are expected to have the format HH:MM:SS[.NNNNNN]") - } - - var err error - - t.Hour, err = parseDecimalDigits(b[0:2]) - if err != nil { - return t, nil, err - } - - if t.Hour > 23 { - return t, nil, unstable.NewParserError(b[0:2], "hour cannot be greater 23") - } - if b[2] != ':' { - return t, nil, unstable.NewParserError(b[2:3], "expecting colon between hours and minutes") - } - - t.Minute, err = parseDecimalDigits(b[3:5]) - if err != nil { - return t, nil, err - } - if t.Minute > 59 { - return t, nil, unstable.NewParserError(b[3:5], "minutes cannot be greater 59") - } - if b[5] != ':' { - return t, nil, unstable.NewParserError(b[5:6], "expecting colon between minutes and seconds") - } - - t.Second, err = parseDecimalDigits(b[6:8]) - if err != nil { - return t, nil, err - } - - if t.Second > 60 { - return t, nil, unstable.NewParserError(b[6:8], "seconds cannot be greater 60") - } - - b = b[8:] - - if len(b) >= 1 && b[0] == '.' { - frac := 0 - precision := 0 - digits := 0 - - for i, c := range b[1:] { - if !isDigit(c) { - if i == 0 { - return t, nil, unstable.NewParserError(b[0:1], "need at least one digit after fraction point") - } - break - } - digits++ - - const maxFracPrecision = 9 - if i >= maxFracPrecision { - // go-toml allows decoding fractional seconds - // beyond the supported precision of 9 - // digits. It truncates the fractional component - // to the supported precision and ignores the - // remaining digits. - // - // https://github.com/pelletier/go-toml/discussions/707 - continue - } - - frac *= 10 - frac += int(c - '0') - precision++ - } - - if precision == 0 { - return t, nil, unstable.NewParserError(b[:1], "nanoseconds need at least one digit") - } - - t.Nanosecond = frac * nspow[precision] - t.Precision = precision - - return t, b[1+digits:], nil - } - return t, b, nil -} - -//nolint:cyclop -func parseFloat(b []byte) (float64, error) { - if len(b) == 4 && (b[0] == '+' || b[0] == '-') && b[1] == 'n' && b[2] == 'a' && b[3] == 'n' { - return math.NaN(), nil - } - - cleaned, err := checkAndRemoveUnderscoresFloats(b) - if err != nil { - return 0, err - } - - if cleaned[0] == '.' { - return 0, unstable.NewParserError(b, "float cannot start with a dot") - } - - if cleaned[len(cleaned)-1] == '.' { - return 0, unstable.NewParserError(b, "float cannot end with a dot") - } - - dotAlreadySeen := false - for i, c := range cleaned { - if c == '.' { - if dotAlreadySeen { - return 0, unstable.NewParserError(b[i:i+1], "float can have at most one decimal point") - } - if !isDigit(cleaned[i-1]) { - return 0, unstable.NewParserError(b[i-1:i+1], "float decimal point must be preceded by a digit") - } - if !isDigit(cleaned[i+1]) { - return 0, unstable.NewParserError(b[i:i+2], "float decimal point must be followed by a digit") - } - dotAlreadySeen = true - } - } - - start := 0 - if cleaned[0] == '+' || cleaned[0] == '-' { - start = 1 - } - if cleaned[start] == '0' && len(cleaned) > start+1 && isDigit(cleaned[start+1]) { - return 0, unstable.NewParserError(b, "float integer part cannot have leading zeroes") - } - - f, err := strconv.ParseFloat(string(cleaned), 64) - if err != nil { - return 0, unstable.NewParserError(b, "unable to parse float: %w", err) - } - - return f, nil -} - -func parseIntHex(b []byte) (int64, error) { - cleaned, err := checkAndRemoveUnderscoresIntegers(b[2:]) - if err != nil { - return 0, err - } - - i, err := strconv.ParseInt(string(cleaned), 16, 64) - if err != nil { - return 0, unstable.NewParserError(b, "couldn't parse hexadecimal number: %w", err) - } - - return i, nil -} - -func parseIntOct(b []byte) (int64, error) { - cleaned, err := checkAndRemoveUnderscoresIntegers(b[2:]) - if err != nil { - return 0, err - } - - i, err := strconv.ParseInt(string(cleaned), 8, 64) - if err != nil { - return 0, unstable.NewParserError(b, "couldn't parse octal number: %w", err) - } - - return i, nil -} - -func parseIntBin(b []byte) (int64, error) { - cleaned, err := checkAndRemoveUnderscoresIntegers(b[2:]) - if err != nil { - return 0, err - } - - i, err := strconv.ParseInt(string(cleaned), 2, 64) - if err != nil { - return 0, unstable.NewParserError(b, "couldn't parse binary number: %w", err) - } - - return i, nil -} - -func isSign(b byte) bool { - return b == '+' || b == '-' -} - -func parseIntDec(b []byte) (int64, error) { - cleaned, err := checkAndRemoveUnderscoresIntegers(b) - if err != nil { - return 0, err - } - - startIdx := 0 - - if isSign(cleaned[0]) { - startIdx++ - } - - if len(cleaned) > startIdx+1 && cleaned[startIdx] == '0' { - return 0, unstable.NewParserError(b, "leading zero not allowed on decimal number") - } - - i, err := strconv.ParseInt(string(cleaned), 10, 64) - if err != nil { - return 0, unstable.NewParserError(b, "couldn't parse decimal number: %w", err) - } - - return i, nil -} - -func checkAndRemoveUnderscoresIntegers(b []byte) ([]byte, error) { - start := 0 - if b[start] == '+' || b[start] == '-' { - start++ - } - - if len(b) == start { - return b, nil - } - - if b[start] == '_' { - return nil, unstable.NewParserError(b[start:start+1], "number cannot start with underscore") - } - - if b[len(b)-1] == '_' { - return nil, unstable.NewParserError(b[len(b)-1:], "number cannot end with underscore") - } - - // fast path - i := 0 - for ; i < len(b); i++ { - if b[i] == '_' { - break - } - } - if i == len(b) { - return b, nil - } - - before := false - cleaned := make([]byte, i, len(b)) - copy(cleaned, b) - - for i++; i < len(b); i++ { - c := b[i] - if c == '_' { - if !before { - return nil, unstable.NewParserError(b[i-1:i+1], "number must have at least one digit between underscores") - } - before = false - } else { - before = true - cleaned = append(cleaned, c) - } - } - - return cleaned, nil -} - -func checkAndRemoveUnderscoresFloats(b []byte) ([]byte, error) { - if b[0] == '_' { - return nil, unstable.NewParserError(b[0:1], "number cannot start with underscore") - } - - if b[len(b)-1] == '_' { - return nil, unstable.NewParserError(b[len(b)-1:], "number cannot end with underscore") - } - - // fast path - i := 0 - for ; i < len(b); i++ { - if b[i] == '_' { - break - } - } - if i == len(b) { - return b, nil - } - - before := false - cleaned := make([]byte, 0, len(b)) - - for i := 0; i < len(b); i++ { - c := b[i] - - switch c { - case '_': - if !before { - return nil, unstable.NewParserError(b[i-1:i+1], "number must have at least one digit between underscores") - } - if i < len(b)-1 && (b[i+1] == 'e' || b[i+1] == 'E') { - return nil, unstable.NewParserError(b[i+1:i+2], "cannot have underscore before exponent") - } - before = false - case '+', '-': - // signed exponents - cleaned = append(cleaned, c) - before = false - case 'e', 'E': - if i < len(b)-1 && b[i+1] == '_' { - return nil, unstable.NewParserError(b[i+1:i+2], "cannot have underscore after exponent") - } - cleaned = append(cleaned, c) - case '.': - if i < len(b)-1 && b[i+1] == '_' { - return nil, unstable.NewParserError(b[i+1:i+2], "cannot have underscore after decimal point") - } - if i > 0 && b[i-1] == '_' { - return nil, unstable.NewParserError(b[i-1:i], "cannot have underscore before decimal point") - } - cleaned = append(cleaned, c) - default: - before = true - cleaned = append(cleaned, c) - } - } - - return cleaned, nil -} - -// isValidDate checks if a provided date is a date that exists. -func isValidDate(year int, month int, day int) bool { - return month > 0 && month < 13 && day > 0 && day <= daysIn(month, year) -} - -// daysBefore[m] counts the number of days in a non-leap year -// before month m begins. There is an entry for m=12, counting -// the number of days before January of next year (365). -var daysBefore = [...]int32{ - 0, - 31, - 31 + 28, - 31 + 28 + 31, - 31 + 28 + 31 + 30, - 31 + 28 + 31 + 30 + 31, - 31 + 28 + 31 + 30 + 31 + 30, - 31 + 28 + 31 + 30 + 31 + 30 + 31, - 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31, - 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30, - 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31, - 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30, - 31 + 28 + 31 + 30 + 31 + 30 + 31 + 31 + 30 + 31 + 30 + 31, -} - -func daysIn(m int, year int) int { - if m == 2 && isLeap(year) { - return 29 - } - return int(daysBefore[m] - daysBefore[m-1]) -} - -func isLeap(year int) bool { - return year%4 == 0 && (year%100 != 0 || year%400 == 0) -} - -func isDigit(r byte) bool { - return r >= '0' && r <= '9' -} |