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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 patch class String { | 5 patch class String { |
6 /* patch */ factory String.fromCharCodes(Iterable<int> charCodes) { | 6 /* patch */ factory String.fromCharCodes(Iterable<int> charCodes) { |
7 return _StringBase.createFromCharCodes(charCodes); | 7 return _StringBase.createFromCharCodes(charCodes); |
8 } | 8 } |
9 | 9 |
10 /* patch */ const factory String.fromEnvironment(String name, | 10 /* patch */ const factory String.fromEnvironment(String name, |
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807 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, | 807 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, |
808 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, | 808 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, |
809 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xd7, | 809 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xd7, |
810 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xdf, | 810 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xdf, |
811 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, | 811 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, |
812 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, | 812 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, |
813 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, | 813 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, |
814 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, | 814 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, |
815 ]; | 815 ]; |
816 | 816 |
817 String _toLowerCaseUpperCaseDetectedAt(int firstUpperCaseIndex) { | |
818 // String contains upper case characters. Create a new string. | |
819 final length = this.length; | |
820 final result = _allocate(length); | |
821 // First up to firstUpperIndex. | |
822 int i = 0; | |
823 for (; i < firstUpperCaseIndex; i++) { | |
824 result._setAt(i, this.codeUnitAt(i)); | |
825 } | |
826 for (; i < length; i++) { | |
827 result._setAt(i, _LC_TABLE[this.codeUnitAt(i)]); | |
828 } | |
829 return result; | |
830 } | |
831 | |
832 String toLowerCase() { | 817 String toLowerCase() { |
833 for (int i = 0; i < this.length; i++) { | 818 for (int i = 0; i < this.length; i++) { |
834 final c = this.codeUnitAt(i); | 819 final c = this.codeUnitAt(i); |
835 // Ranges: 0x41-0x5a ('A' - 'Z'), 0xc0-0xd6, 0xd8-0xde. | 820 if (c == _LC_TABLE[c]) continue; |
836 if (c != _LC_TABLE[c]) { | 821 // Upper-case character found. |
837 return _toLowerCaseUpperCaseDetectedAt(i); | 822 final result = _allocate(this.length); |
823 for (int j = 0; j < i; j++) { | |
824 result._setAt(j, this.codeUnitAt(j)); | |
838 } | 825 } |
826 for (int j = i; j < this.length; j++) { | |
827 // Ranges: 0x41-0x5a ('A' - 'Z'), 0xc0-0xd6, 0xd8-0xde. | |
Lasse Reichstein Nielsen
2014/03/26 11:37:51
Maybe move this comment to the table?
// Upper-cas
Anders Johnsen
2014/03/26 11:39:12
Done.
| |
828 result._setAt(j, _LC_TABLE[this.codeUnitAt(j)]); | |
829 } | |
830 return result; | |
839 } | 831 } |
840 return this; | 832 return this; |
841 } | 833 } |
842 | 834 |
843 // Allocates a string of given length, expecting its content to be | 835 // Allocates a string of given length, expecting its content to be |
844 // set using _setAt. | 836 // set using _setAt. |
845 static _OneByteString _allocate(int length) native "OneByteString_allocate"; | 837 static _OneByteString _allocate(int length) native "OneByteString_allocate"; |
846 | 838 |
847 | 839 |
848 static _OneByteString _allocateFromOneByteList(List<int> list) | 840 static _OneByteString _allocateFromOneByteList(List<int> list) |
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943 class _CodeUnits extends Object with ListMixin<int>, | 935 class _CodeUnits extends Object with ListMixin<int>, |
944 UnmodifiableListMixin<int> { | 936 UnmodifiableListMixin<int> { |
945 /** The string that this is the code units of. */ | 937 /** The string that this is the code units of. */ |
946 String _string; | 938 String _string; |
947 | 939 |
948 _CodeUnits(this._string); | 940 _CodeUnits(this._string); |
949 | 941 |
950 int get length => _string.length; | 942 int get length => _string.length; |
951 int operator[](int i) => _string.codeUnitAt(i); | 943 int operator[](int i) => _string.codeUnitAt(i); |
952 } | 944 } |
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