diff options
Diffstat (limited to 'Godeps/_workspace/src/github.com/obscuren/otto/builtin.go')
-rw-r--r-- | Godeps/_workspace/src/github.com/obscuren/otto/builtin.go | 393 |
1 files changed, 0 insertions, 393 deletions
diff --git a/Godeps/_workspace/src/github.com/obscuren/otto/builtin.go b/Godeps/_workspace/src/github.com/obscuren/otto/builtin.go deleted file mode 100644 index b4cdf9d21..000000000 --- a/Godeps/_workspace/src/github.com/obscuren/otto/builtin.go +++ /dev/null @@ -1,393 +0,0 @@ -package otto - -import ( - "encoding/hex" - "fmt" - "math" - "net/url" - "regexp" - "strconv" - "strings" - "unicode/utf16" - "unicode/utf8" -) - -// Global -func builtinGlobal_eval(call FunctionCall) Value { - src := call.Argument(0) - if !src.IsString() { - return src - } - runtime := call.runtime - program := runtime.cmpl_parseOrThrow(toString(src)) - if call.evalHint { - runtime.EnterEvalExecutionContext(call) - defer runtime.LeaveExecutionContext() - } - returnValue := runtime.cmpl_evaluate_nodeProgram(program) - if returnValue.isEmpty() { - return UndefinedValue() - } - return returnValue -} - -func builtinGlobal_isNaN(call FunctionCall) Value { - value := toFloat(call.Argument(0)) - return toValue_bool(math.IsNaN(value)) -} - -func builtinGlobal_isFinite(call FunctionCall) Value { - value := toFloat(call.Argument(0)) - return toValue_bool(!math.IsNaN(value) && !math.IsInf(value, 0)) -} - -// radix 3 => 2 (ASCII 50) +47 -// radix 11 => A/a (ASCII 65/97) +54/+86 -var parseInt_alphabetTable = func() []string { - table := []string{"", "", "01"} - for radix := 3; radix <= 36; radix += 1 { - alphabet := table[radix-1] - if radix <= 10 { - alphabet += string(radix + 47) - } else { - alphabet += string(radix+54) + string(radix+86) - } - table = append(table, alphabet) - } - return table -}() - -func digitValue(chr rune) int { - switch { - case '0' <= chr && chr <= '9': - return int(chr - '0') - case 'a' <= chr && chr <= 'z': - return int(chr - 'a' + 10) - case 'A' <= chr && chr <= 'Z': - return int(chr - 'A' + 10) - } - return 36 // Larger than any legal digit value -} - -func builtinGlobal_parseInt(call FunctionCall) Value { - input := strings.TrimSpace(toString(call.Argument(0))) - if len(input) == 0 { - return NaNValue() - } - - radix := int(toInt32(call.Argument(1))) - - negative := false - switch input[0] { - case '+': - input = input[1:] - case '-': - negative = true - input = input[1:] - } - - strip := true - if radix == 0 { - radix = 10 - } else { - if radix < 2 || radix > 36 { - return NaNValue() - } else if radix != 16 { - strip = false - } - } - - switch len(input) { - case 0: - return NaNValue() - case 1: - default: - if strip { - if input[0] == '0' && (input[1] == 'x' || input[1] == 'X') { - input = input[2:] - radix = 16 - } - } - } - - base := radix - index := 0 - for ; index < len(input); index++ { - digit := digitValue(rune(input[index])) // If not ASCII, then an error anyway - if digit >= base { - break - } - } - input = input[0:index] - - value, err := strconv.ParseInt(input, radix, 64) - if err != nil { - if err.(*strconv.NumError).Err == strconv.ErrRange { - base := float64(base) - // Could just be a very large number (e.g. 0x8000000000000000) - var value float64 - for _, chr := range input { - digit := float64(digitValue(chr)) - if digit >= base { - goto error - } - value = value*base + digit - } - if negative { - value *= -1 - } - return toValue_float64(value) - } - error: - return NaNValue() - } - if negative { - value *= -1 - } - - return toValue_int64(value) -} - -var parseFloat_matchBadSpecial = regexp.MustCompile(`[\+\-]?(?:[Ii]nf$|infinity)`) -var parseFloat_matchValid = regexp.MustCompile(`[0-9eE\+\-\.]|Infinity`) - -func builtinGlobal_parseFloat(call FunctionCall) Value { - // Caveat emptor: This implementation does NOT match the specification - input := strings.TrimSpace(toString(call.Argument(0))) - if parseFloat_matchBadSpecial.MatchString(input) { - return NaNValue() - } - value, err := strconv.ParseFloat(input, 64) - if err != nil { - for end := len(input); end > 0; end -= 1 { - input := input[0:end] - if !parseFloat_matchValid.MatchString(input) { - return NaNValue() - } - value, err = strconv.ParseFloat(input, 64) - if err == nil { - break - } - } - if err != nil { - return NaNValue() - } - } - return toValue_float64(value) -} - -// encodeURI/decodeURI - -func _builtinGlobal_encodeURI(call FunctionCall, escape *regexp.Regexp) Value { - value := call.Argument(0) - var input []uint16 - switch vl := value.value.(type) { - case []uint16: - input = vl - default: - input = utf16.Encode([]rune(toString(value))) - } - if len(input) == 0 { - return toValue_string("") - } - output := []byte{} - length := len(input) - encode := make([]byte, 4) - for index := 0; index < length; { - value := input[index] - decode := utf16.Decode(input[index : index+1]) - if value >= 0xDC00 && value <= 0xDFFF { - panic(newURIError("URI malformed")) - } - if value >= 0xD800 && value <= 0xDBFF { - index += 1 - if index >= length { - panic(newURIError("URI malformed")) - } - // input = ..., value, value1, ... - value = value - value1 := input[index] - if value1 < 0xDC00 || value1 > 0xDFFF { - panic(newURIError("URI malformed")) - } - decode = []rune{((rune(value) - 0xD800) * 0x400) + (rune(value1) - 0xDC00) + 0x10000} - } - index += 1 - size := utf8.EncodeRune(encode, decode[0]) - encode := encode[0:size] - output = append(output, encode...) - } - { - value := escape.ReplaceAllFunc(output, func(target []byte) []byte { - // Probably a better way of doing this - if target[0] == ' ' { - return []byte("%20") - } - return []byte(url.QueryEscape(string(target))) - }) - return toValue_string(string(value)) - } -} - -var encodeURI_Regexp = regexp.MustCompile(`([^~!@#$&*()=:/,;?+'])`) - -func builtinGlobal_encodeURI(call FunctionCall) Value { - return _builtinGlobal_encodeURI(call, encodeURI_Regexp) -} - -var encodeURIComponent_Regexp = regexp.MustCompile(`([^~!*()'])`) - -func builtinGlobal_encodeURIComponent(call FunctionCall) Value { - return _builtinGlobal_encodeURI(call, encodeURIComponent_Regexp) -} - -// 3B/2F/3F/3A/40/26/3D/2B/24/2C/23 -var decodeURI_guard = regexp.MustCompile(`(?i)(?:%)(3B|2F|3F|3A|40|26|3D|2B|24|2C|23)`) - -func _decodeURI(input string, reserve bool) (string, bool) { - if reserve { - input = decodeURI_guard.ReplaceAllString(input, "%25$1") - } - input = strings.Replace(input, "+", "%2B", -1) // Ugly hack to make QueryUnescape work with our use case - output, err := url.QueryUnescape(input) - if err != nil || !utf8.ValidString(output) { - return "", true - } - return output, false -} - -func builtinGlobal_decodeURI(call FunctionCall) Value { - output, err := _decodeURI(toString(call.Argument(0)), true) - if err { - panic(newURIError("URI malformed")) - } - return toValue_string(output) -} - -func builtinGlobal_decodeURIComponent(call FunctionCall) Value { - output, err := _decodeURI(toString(call.Argument(0)), false) - if err { - panic(newURIError("URI malformed")) - } - return toValue_string(output) -} - -// escape/unescape - -func builtin_shouldEscape(chr byte) bool { - if 'A' <= chr && chr <= 'Z' || 'a' <= chr && chr <= 'z' || '0' <= chr && chr <= '9' { - return false - } - return !strings.ContainsRune("*_+-./", rune(chr)) -} - -const escapeBase16 = "0123456789ABCDEF" - -func builtin_escape(input string) string { - output := make([]byte, 0, len(input)) - length := len(input) - for index := 0; index < length; { - if builtin_shouldEscape(input[index]) { - chr, width := utf8.DecodeRuneInString(input[index:]) - chr16 := utf16.Encode([]rune{chr})[0] - if 256 > chr16 { - output = append(output, '%', - escapeBase16[chr16>>4], - escapeBase16[chr16&15], - ) - } else { - output = append(output, '%', 'u', - escapeBase16[chr16>>12], - escapeBase16[(chr16>>8)&15], - escapeBase16[(chr16>>4)&15], - escapeBase16[chr16&15], - ) - } - index += width - - } else { - output = append(output, input[index]) - index += 1 - } - } - return string(output) -} - -func builtin_unescape(input string) string { - output := make([]rune, 0, len(input)) - length := len(input) - for index := 0; index < length; { - if input[index] == '%' { - if index <= length-6 && input[index+1] == 'u' { - byte16, err := hex.DecodeString(input[index+2 : index+6]) - if err == nil { - value := uint16(byte16[0])<<8 + uint16(byte16[1]) - chr := utf16.Decode([]uint16{value})[0] - output = append(output, chr) - index += 6 - continue - } - } - if index <= length-3 { - byte8, err := hex.DecodeString(input[index+1 : index+3]) - if err == nil { - value := uint16(byte8[0]) - chr := utf16.Decode([]uint16{value})[0] - output = append(output, chr) - index += 3 - continue - } - } - } - output = append(output, rune(input[index])) - index += 1 - } - return string(output) -} - -func builtinGlobal_escape(call FunctionCall) Value { - return toValue_string(builtin_escape(toString(call.Argument(0)))) -} - -func builtinGlobal_unescape(call FunctionCall) Value { - return toValue_string(builtin_unescape(toString(call.Argument(0)))) -} - -// Error - -func builtinError(call FunctionCall) Value { - return toValue_object(call.runtime.newError("", call.Argument(0))) -} - -func builtinNewError(self *_object, _ Value, argumentList []Value) Value { - return toValue_object(self.runtime.newError("", valueOfArrayIndex(argumentList, 0))) -} - -func builtinError_toString(call FunctionCall) Value { - thisObject := call.thisObject() - if thisObject == nil { - panic(newTypeError()) - } - - name := "Error" - nameValue := thisObject.get("name") - if nameValue.IsDefined() { - name = toString(nameValue) - } - - message := "" - messageValue := thisObject.get("message") - if messageValue.IsDefined() { - message = toString(messageValue) - } - - if len(name) == 0 { - return toValue_string(message) - } - - if len(message) == 0 { - return toValue_string(name) - } - - return toValue_string(fmt.Sprintf("%s: %s", name, message)) -} |