1 // Copyright 2011 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #ifndef V8_CHAR_PREDICATES_INL_H_
6 #define V8_CHAR_PREDICATES_INL_H_
8 #include "char-predicates.h"
14 // If c is in 'A'-'Z' or 'a'-'z', return its lower-case.
15 // Else, return something outside of 'A'-'Z' and 'a'-'z'.
16 // Note: it ignores LOCALE.
17 inline int AsciiAlphaToLower(uc32 c) {
22 inline bool IsCarriageReturn(uc32 c) {
27 inline bool IsLineFeed(uc32 c) {
32 inline bool IsInRange(int value, int lower_limit, int higher_limit) {
33 ASSERT(lower_limit <= higher_limit);
34 return static_cast<unsigned int>(value - lower_limit) <=
35 static_cast<unsigned int>(higher_limit - lower_limit);
39 inline bool IsDecimalDigit(uc32 c) {
40 // ECMA-262, 3rd, 7.8.3 (p 16)
41 return IsInRange(c, '0', '9');
45 inline bool IsHexDigit(uc32 c) {
46 // ECMA-262, 3rd, 7.6 (p 15)
47 return IsDecimalDigit(c) || IsInRange(AsciiAlphaToLower(c), 'a', 'f');
51 inline bool IsOctalDigit(uc32 c) {
52 // ECMA-262, 6th, 7.8.3
53 return IsInRange(c, '0', '7');
57 inline bool IsBinaryDigit(uc32 c) {
58 // ECMA-262, 6th, 7.8.3
59 return c == '0' || c == '1';
63 inline bool IsRegExpWord(uc16 c) {
64 return IsInRange(AsciiAlphaToLower(c), 'a', 'z')
70 inline bool IsRegExpNewline(uc16 c) {
73 case 0x000A: case 0x000D: case 0x2028: case 0x2029:
81 } } // namespace v8::internal
83 #endif // V8_CHAR_PREDICATES_INL_H_