v8/src/char-predicates-inl.h

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#ifndef V8_CHAR_PREDICATES_INL_H_
#define V8_CHAR_PREDICATES_INL_H_

#include "char-predicates.h"

namespace v8 { namespace internal {


inline bool IsCarriageReturn(uc32 c) {
  return c == 0x000D;
}


inline bool IsLineFeed(uc32 c) {
  return c == 0x000A;
}


inline bool IsDecimalDigit(uc32 c) {
  // ECMA-262, 3rd, 7.8.3 (p 16)
  return
    '0' <= c && c <= '9';
}


inline bool IsHexDigit(uc32 c) {
  // ECMA-262, 3rd, 7.6 (p 15)
  return
    ('0' <= c && c <= '9') ||
    ('A' <= c && c <= 'F') ||
    ('a' <= c && c <= 'f');
}


inline bool IsRegExpWord(uc16 c) {
  return ('a' <= c && c <= 'z')
      || ('A' <= c && c <= 'Z')
      || ('0' <= c && c <= '9')
      || (c == '_');
}


inline bool IsRegExpNewline(uc16 c) {
  switch (c) {
    //   CR           LF           LS           PS
    case 0x000A: case 0x000D: case 0x2028: case 0x2029:
      return false;
    default:
      return true;
  }
}


} }  // namespace v8::internal

#endif  // V8_CHAR_PREDICATES_INL_H_