| @ -1,358 +0,0 @@ | |||
| /* | |||
| * The authors of this software are Rob Pike and Ken Thompson. | |||
| * Copyright (c) 2002 by Lucent Technologies. | |||
| * Portions Copyright (c) 2009 The Go Authors. All rights reserved. | |||
| * Permission to use, copy, modify, and distribute this software for any | |||
| * purpose without fee is hereby granted, provided that this entire notice | |||
| * is included in all copies of any software which is or includes a copy | |||
| * or modification of this software and in all copies of the supporting | |||
| * documentation for such software. | |||
| * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED | |||
| * WARRANTY. IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES MAKE ANY | |||
| * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY | |||
| * OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE. | |||
| */ | |||
| #include "phonenumbers/utf/utf.h" | |||
| #include "phonenumbers/utf/utfdef.h" | |||
| enum | |||
| { | |||
| Bit1 = 7, | |||
| Bitx = 6, | |||
| Bit2 = 5, | |||
| Bit3 = 4, | |||
| Bit4 = 3, | |||
| Bit5 = 2, | |||
| T1 = ((1<<(Bit1+1))-1) ^ 0xFF, /* 0000 0000 */ | |||
| Tx = ((1<<(Bitx+1))-1) ^ 0xFF, /* 1000 0000 */ | |||
| T2 = ((1<<(Bit2+1))-1) ^ 0xFF, /* 1100 0000 */ | |||
| T3 = ((1<<(Bit3+1))-1) ^ 0xFF, /* 1110 0000 */ | |||
| T4 = ((1<<(Bit4+1))-1) ^ 0xFF, /* 1111 0000 */ | |||
| T5 = ((1<<(Bit5+1))-1) ^ 0xFF, /* 1111 1000 */ | |||
| Rune1 = (1<<(Bit1+0*Bitx))-1, /* 0000 0000 0111 1111 */ | |||
| Rune2 = (1<<(Bit2+1*Bitx))-1, /* 0000 0111 1111 1111 */ | |||
| Rune3 = (1<<(Bit3+2*Bitx))-1, /* 1111 1111 1111 1111 */ | |||
| Rune4 = (1<<(Bit4+3*Bitx))-1, /* 0001 1111 1111 1111 1111 1111 */ | |||
| Maskx = (1<<Bitx)-1, /* 0011 1111 */ | |||
| Testx = Maskx ^ 0xFF, /* 1100 0000 */ | |||
| SurrogateMin = 0xD800, | |||
| SurrogateMax = 0xDFFF, | |||
| Bad = Runeerror, | |||
| }; | |||
| /* | |||
| * Modified by Wei-Hwa Huang, Google Inc., on 2004-09-24 | |||
| * This is a slower but "safe" version of the old chartorune | |||
| * that works on strings that are not necessarily null-terminated. | |||
| * | |||
| * If you know for sure that your string is null-terminated, | |||
| * chartorune will be a bit faster. | |||
| * | |||
| * It is guaranteed not to attempt to access "length" | |||
| * past the incoming pointer. This is to avoid | |||
| * possible access violations. If the string appears to be | |||
| * well-formed but incomplete (i.e., to get the whole Rune | |||
| * we'd need to read past str+length) then we'll set the Rune | |||
| * to Bad and return 0. | |||
| * | |||
| * Note that if we have decoding problems for other | |||
| * reasons, we return 1 instead of 0. | |||
| */ | |||
| int | |||
| charntorune(Rune *rune, const char *str, int length) | |||
| { | |||
| int c, c1, c2, c3; | |||
| long l; | |||
| /* When we're not allowed to read anything */ | |||
| if(length <= 0) { | |||
| goto badlen; | |||
| } | |||
| /* | |||
| * one character sequence (7-bit value) | |||
| * 00000-0007F => T1 | |||
| */ | |||
| c = *(uchar*)str; | |||
| if(c < Tx) { | |||
| *rune = (Rune)c; | |||
| return 1; | |||
| } | |||
| // If we can't read more than one character we must stop | |||
| if(length <= 1) { | |||
| goto badlen; | |||
| } | |||
| /* | |||
| * two character sequence (11-bit value) | |||
| * 0080-07FF => T2 Tx | |||
| */ | |||
| c1 = *(uchar*)(str+1) ^ Tx; | |||
| if(c1 & Testx) | |||
| goto bad; | |||
| if(c < T3) { | |||
| if(c < T2) | |||
| goto bad; | |||
| l = ((c << Bitx) | c1) & Rune2; | |||
| if(l <= Rune1) | |||
| goto bad; | |||
| *rune = (Rune)l; | |||
| return 2; | |||
| } | |||
| // If we can't read more than two characters we must stop | |||
| if(length <= 2) { | |||
| goto badlen; | |||
| } | |||
| /* | |||
| * three character sequence (16-bit value) | |||
| * 0800-FFFF => T3 Tx Tx | |||
| */ | |||
| c2 = *(uchar*)(str+2) ^ Tx; | |||
| if(c2 & Testx) | |||
| goto bad; | |||
| if(c < T4) { | |||
| l = ((((c << Bitx) | c1) << Bitx) | c2) & Rune3; | |||
| if(l <= Rune2) | |||
| goto bad; | |||
| if (SurrogateMin <= l && l <= SurrogateMax) | |||
| goto bad; | |||
| *rune = (Rune)l; | |||
| return 3; | |||
| } | |||
| if (length <= 3) | |||
| goto badlen; | |||
| /* | |||
| * four character sequence (21-bit value) | |||
| * 10000-1FFFFF => T4 Tx Tx Tx | |||
| */ | |||
| c3 = *(uchar*)(str+3) ^ Tx; | |||
| if (c3 & Testx) | |||
| goto bad; | |||
| if (c < T5) { | |||
| l = ((((((c << Bitx) | c1) << Bitx) | c2) << Bitx) | c3) & Rune4; | |||
| if (l <= Rune3 || l > Runemax) | |||
| goto bad; | |||
| *rune = (Rune)l; | |||
| return 4; | |||
| } | |||
| // Support for 5-byte or longer UTF-8 would go here, but | |||
| // since we don't have that, we'll just fall through to bad. | |||
| /* | |||
| * bad decoding | |||
| */ | |||
| bad: | |||
| *rune = Bad; | |||
| return 1; | |||
| badlen: | |||
| *rune = Bad; | |||
| return 0; | |||
| } | |||
| /* | |||
| * This is the older "unsafe" version, which works fine on | |||
| * null-terminated strings. | |||
| */ | |||
| int | |||
| chartorune(Rune *rune, const char *str) | |||
| { | |||
| int c, c1, c2, c3; | |||
| long l; | |||
| /* | |||
| * one character sequence | |||
| * 00000-0007F => T1 | |||
| */ | |||
| c = *(uchar*)str; | |||
| if(c < Tx) { | |||
| *rune = (Rune)c; | |||
| return 1; | |||
| } | |||
| /* | |||
| * two character sequence | |||
| * 0080-07FF => T2 Tx | |||
| */ | |||
| c1 = *(uchar*)(str+1) ^ Tx; | |||
| if(c1 & Testx) | |||
| goto bad; | |||
| if(c < T3) { | |||
| if(c < T2) | |||
| goto bad; | |||
| l = ((c << Bitx) | c1) & Rune2; | |||
| if(l <= Rune1) | |||
| goto bad; | |||
| *rune = (Rune)l; | |||
| return 2; | |||
| } | |||
| /* | |||
| * three character sequence | |||
| * 0800-FFFF => T3 Tx Tx | |||
| */ | |||
| c2 = *(uchar*)(str+2) ^ Tx; | |||
| if(c2 & Testx) | |||
| goto bad; | |||
| if(c < T4) { | |||
| l = ((((c << Bitx) | c1) << Bitx) | c2) & Rune3; | |||
| if(l <= Rune2) | |||
| goto bad; | |||
| if (SurrogateMin <= l && l <= SurrogateMax) | |||
| goto bad; | |||
| *rune = (Rune)l; | |||
| return 3; | |||
| } | |||
| /* | |||
| * four character sequence (21-bit value) | |||
| * 10000-1FFFFF => T4 Tx Tx Tx | |||
| */ | |||
| c3 = *(uchar*)(str+3) ^ Tx; | |||
| if (c3 & Testx) | |||
| goto bad; | |||
| if (c < T5) { | |||
| l = ((((((c << Bitx) | c1) << Bitx) | c2) << Bitx) | c3) & Rune4; | |||
| if (l <= Rune3 || l > Runemax) | |||
| goto bad; | |||
| *rune = (Rune)l; | |||
| return 4; | |||
| } | |||
| /* | |||
| * Support for 5-byte or longer UTF-8 would go here, but | |||
| * since we don't have that, we'll just fall through to bad. | |||
| */ | |||
| /* | |||
| * bad decoding | |||
| */ | |||
| bad: | |||
| *rune = Bad; | |||
| return 1; | |||
| } | |||
| int | |||
| isvalidcharntorune(const char* str, int length, Rune* rune, int* consumed) | |||
| { | |||
| *consumed = charntorune(rune, str, length); | |||
| return *rune != Runeerror || *consumed == 3; | |||
| } | |||
| int | |||
| runetochar(char *str, const Rune *rune) | |||
| { | |||
| /* Runes are signed, so convert to unsigned for range check. */ | |||
| unsigned long c; | |||
| /* | |||
| * one character sequence | |||
| * 00000-0007F => 00-7F | |||
| */ | |||
| c = *rune; | |||
| if(c <= Rune1) { | |||
| str[0] = (char)c; | |||
| return 1; | |||
| } | |||
| /* | |||
| * two character sequence | |||
| * 0080-07FF => T2 Tx | |||
| */ | |||
| if(c <= Rune2) { | |||
| str[0] = (char)(T2 | (c >> 1*Bitx)); | |||
| str[1] = (char)(Tx | (c & Maskx)); | |||
| return 2; | |||
| } | |||
| /* | |||
| * If the Rune is out of range or a surrogate half, convert it to the error rune. | |||
| * Do this test here because the error rune encodes to three bytes. | |||
| * Doing it earlier would duplicate work, since an out of range | |||
| * Rune wouldn't have fit in one or two bytes. | |||
| */ | |||
| if (c > Runemax) | |||
| c = Runeerror; | |||
| if (SurrogateMin <= c && c <= SurrogateMax) | |||
| c = Runeerror; | |||
| /* | |||
| * three character sequence | |||
| * 0800-FFFF => T3 Tx Tx | |||
| */ | |||
| if (c <= Rune3) { | |||
| str[0] = (char)(T3 | (c >> 2*Bitx)); | |||
| str[1] = (char)(Tx | ((c >> 1*Bitx) & Maskx)); | |||
| str[2] = (char)(Tx | (c & Maskx)); | |||
| return 3; | |||
| } | |||
| /* | |||
| * four character sequence (21-bit value) | |||
| * 10000-1FFFFF => T4 Tx Tx Tx | |||
| */ | |||
| str[0] = (char)(T4 | (c >> 3*Bitx)); | |||
| str[1] = (char)(Tx | ((c >> 2*Bitx) & Maskx)); | |||
| str[2] = (char)(Tx | ((c >> 1*Bitx) & Maskx)); | |||
| str[3] = (char)(Tx | (c & Maskx)); | |||
| return 4; | |||
| } | |||
| int | |||
| runelen(Rune rune) | |||
| { | |||
| char str[10]; | |||
| return runetochar(str, &rune); | |||
| } | |||
| int | |||
| runenlen(const Rune *r, int nrune) | |||
| { | |||
| int nb, c; | |||
| nb = 0; | |||
| while(nrune--) { | |||
| c = (int)*r++; | |||
| if (c <= Rune1) | |||
| nb++; | |||
| else if (c <= Rune2) | |||
| nb += 2; | |||
| else if (c <= Rune3) | |||
| nb += 3; | |||
| else /* assert(c <= Rune4) */ | |||
| nb += 4; | |||
| } | |||
| return nb; | |||
| } | |||
| int | |||
| fullrune(const char *str, int n) | |||
| { | |||
| if (n > 0) { | |||
| int c = *(uchar*)str; | |||
| if (c < Tx) | |||
| return 1; | |||
| if (n > 1) { | |||
| if (c < T3) | |||
| return 1; | |||
| if (n > 2) { | |||
| if (c < T4 || n > 3) | |||
| return 1; | |||
| } | |||
| } | |||
| } | |||
| return 0; | |||
| } | |||
| @ -0,0 +1,325 @@ | |||
| /* | |||
| * The authors of this software are Rob Pike and Ken Thompson. | |||
| * Copyright (c) 2002 by Lucent Technologies. | |||
| * Portions Copyright (c) 2009 The Go Authors. All rights | |||
| * reserved. Permission to use, copy, modify, and distribute this software for | |||
| * any purpose without fee is hereby granted, provided that this entire notice | |||
| * is included in all copies of any software which is or includes a copy | |||
| * or modification of this software and in all copies of the supporting | |||
| * documentation for such software. | |||
| * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED | |||
| * WARRANTY. IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES MAKE | |||
| * ANY REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY OF | |||
| * THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE. | |||
| */ | |||
| #include "phonenumbers/utf/utf.h" | |||
| #include "phonenumbers/utf/utfdef.h" | |||
| namespace i18n { | |||
| namespace phonenumbers { | |||
| enum { | |||
| Bit1 = 7, | |||
| Bitx = 6, | |||
| Bit2 = 5, | |||
| Bit3 = 4, | |||
| Bit4 = 3, | |||
| Bit5 = 2, | |||
| T1 = ((1 << (Bit1 + 1)) - 1) ^ 0xFF, /* 0000 0000 */ | |||
| Tx = ((1 << (Bitx + 1)) - 1) ^ 0xFF, /* 1000 0000 */ | |||
| T2 = ((1 << (Bit2 + 1)) - 1) ^ 0xFF, /* 1100 0000 */ | |||
| T3 = ((1 << (Bit3 + 1)) - 1) ^ 0xFF, /* 1110 0000 */ | |||
| T4 = ((1 << (Bit4 + 1)) - 1) ^ 0xFF, /* 1111 0000 */ | |||
| T5 = ((1 << (Bit5 + 1)) - 1) ^ 0xFF, /* 1111 1000 */ | |||
| Rune1 = (1 << (Bit1 + 0 * Bitx)) - 1, /* 0000 0000 0111 1111 */ | |||
| Rune2 = (1 << (Bit2 + 1 * Bitx)) - 1, /* 0000 0111 1111 1111 */ | |||
| Rune3 = (1 << (Bit3 + 2 * Bitx)) - 1, /* 1111 1111 1111 1111 */ | |||
| Rune4 = (1 << (Bit4 + 3 * Bitx)) - 1, /* 0001 1111 1111 1111 1111 1111 */ | |||
| Maskx = (1 << Bitx) - 1, /* 0011 1111 */ | |||
| Testx = Maskx ^ 0xFF, /* 1100 0000 */ | |||
| SurrogateMin = 0xD800, | |||
| SurrogateMax = 0xDFFF, | |||
| Bad = Runeerror, | |||
| }; | |||
| /* | |||
| * Modified by Wei-Hwa Huang, Google Inc., on 2004-09-24 | |||
| * This is a slower but "safe" version of the old chartorune | |||
| * that works on strings that are not necessarily null-terminated. | |||
| * | |||
| * If you know for sure that your string is null-terminated, | |||
| * chartorune will be a bit faster. | |||
| * | |||
| * It is guaranteed not to attempt to access "length" | |||
| * past the incoming pointer. This is to avoid | |||
| * possible access violations. If the string appears to be | |||
| * well-formed but incomplete (i.e., to get the whole Rune | |||
| * we'd need to read past str+length) then we'll set the Rune | |||
| * to Bad and return 0. | |||
| * | |||
| * Note that if we have decoding problems for other | |||
| * reasons, we return 1 instead of 0. | |||
| */ | |||
| int charntorune(Rune *rune, const char *str, int length) { | |||
| int c, c1, c2, c3; | |||
| long l; | |||
| /* When we're not allowed to read anything */ | |||
| if (length <= 0) { | |||
| goto badlen; | |||
| } | |||
| /* | |||
| * one character sequence (7-bit value) | |||
| * 00000-0007F => T1 | |||
| */ | |||
| c = *(uchar *)str; | |||
| if (c < Tx) { | |||
| *rune = (Rune)c; | |||
| return 1; | |||
| } | |||
| // If we can't read more than one character we must stop | |||
| if (length <= 1) { | |||
| goto badlen; | |||
| } | |||
| /* | |||
| * two character sequence (11-bit value) | |||
| * 0080-07FF => T2 Tx | |||
| */ | |||
| c1 = *(uchar *)(str + 1) ^ Tx; | |||
| if (c1 & Testx) goto bad; | |||
| if (c < T3) { | |||
| if (c < T2) goto bad; | |||
| l = ((c << Bitx) | c1) & Rune2; | |||
| if (l <= Rune1) goto bad; | |||
| *rune = (Rune)l; | |||
| return 2; | |||
| } | |||
| // If we can't read more than two characters we must stop | |||
| if (length <= 2) { | |||
| goto badlen; | |||
| } | |||
| /* | |||
| * three character sequence (16-bit value) | |||
| * 0800-FFFF => T3 Tx Tx | |||
| */ | |||
| c2 = *(uchar *)(str + 2) ^ Tx; | |||
| if (c2 & Testx) goto bad; | |||
| if (c < T4) { | |||
| l = ((((c << Bitx) | c1) << Bitx) | c2) & Rune3; | |||
| if (l <= Rune2) goto bad; | |||
| if (SurrogateMin <= l && l <= SurrogateMax) goto bad; | |||
| *rune = (Rune)l; | |||
| return 3; | |||
| } | |||
| if (length <= 3) goto badlen; | |||
| /* | |||
| * four character sequence (21-bit value) | |||
| * 10000-1FFFFF => T4 Tx Tx Tx | |||
| */ | |||
| c3 = *(uchar *)(str + 3) ^ Tx; | |||
| if (c3 & Testx) goto bad; | |||
| if (c < T5) { | |||
| l = ((((((c << Bitx) | c1) << Bitx) | c2) << Bitx) | c3) & Rune4; | |||
| if (l <= Rune3 || l > Runemax) goto bad; | |||
| *rune = (Rune)l; | |||
| return 4; | |||
| } | |||
| // Support for 5-byte or longer UTF-8 would go here, but | |||
| // since we don't have that, we'll just fall through to bad. | |||
| /* | |||
| * bad decoding | |||
| */ | |||
| bad: | |||
| *rune = Bad; | |||
| return 1; | |||
| badlen: | |||
| *rune = Bad; | |||
| return 0; | |||
| } | |||
| /* | |||
| * This is the older "unsafe" version, which works fine on | |||
| * null-terminated strings. | |||
| */ | |||
| int chartorune(Rune *rune, const char *str) { | |||
| int c, c1, c2, c3; | |||
| long l; | |||
| /* | |||
| * one character sequence | |||
| * 00000-0007F => T1 | |||
| */ | |||
| c = *(uchar *)str; | |||
| if (c < Tx) { | |||
| *rune = (Rune)c; | |||
| return 1; | |||
| } | |||
| /* | |||
| * two character sequence | |||
| * 0080-07FF => T2 Tx | |||
| */ | |||
| c1 = *(uchar *)(str + 1) ^ Tx; | |||
| if (c1 & Testx) goto bad; | |||
| if (c < T3) { | |||
| if (c < T2) goto bad; | |||
| l = ((c << Bitx) | c1) & Rune2; | |||
| if (l <= Rune1) goto bad; | |||
| *rune = (Rune)l; | |||
| return 2; | |||
| } | |||
| /* | |||
| * three character sequence | |||
| * 0800-FFFF => T3 Tx Tx | |||
| */ | |||
| c2 = *(uchar *)(str + 2) ^ Tx; | |||
| if (c2 & Testx) goto bad; | |||
| if (c < T4) { | |||
| l = ((((c << Bitx) | c1) << Bitx) | c2) & Rune3; | |||
| if (l <= Rune2) goto bad; | |||
| if (SurrogateMin <= l && l <= SurrogateMax) goto bad; | |||
| *rune = (Rune)l; | |||
| return 3; | |||
| } | |||
| /* | |||
| * four character sequence (21-bit value) | |||
| * 10000-1FFFFF => T4 Tx Tx Tx | |||
| */ | |||
| c3 = *(uchar *)(str + 3) ^ Tx; | |||
| if (c3 & Testx) goto bad; | |||
| if (c < T5) { | |||
| l = ((((((c << Bitx) | c1) << Bitx) | c2) << Bitx) | c3) & Rune4; | |||
| if (l <= Rune3 || l > Runemax) goto bad; | |||
| *rune = (Rune)l; | |||
| return 4; | |||
| } | |||
| /* | |||
| * Support for 5-byte or longer UTF-8 would go here, but | |||
| * since we don't have that, we'll just fall through to bad. | |||
| */ | |||
| /* | |||
| * bad decoding | |||
| */ | |||
| bad: | |||
| *rune = Bad; | |||
| return 1; | |||
| } | |||
| int isvalidcharntorune(const char *str, int length, Rune *rune, int *consumed) { | |||
| *consumed = charntorune(rune, str, length); | |||
| return *rune != Runeerror || *consumed == 3; | |||
| } | |||
| int runetochar(char *str, const Rune *rune) { | |||
| /* Runes are signed, so convert to unsigned for range check. */ | |||
| unsigned long c; | |||
| /* | |||
| * one character sequence | |||
| * 00000-0007F => 00-7F | |||
| */ | |||
| c = *rune; | |||
| if (c <= Rune1) { | |||
| str[0] = (char)c; | |||
| return 1; | |||
| } | |||
| /* | |||
| * two character sequence | |||
| * 0080-07FF => T2 Tx | |||
| */ | |||
| if (c <= Rune2) { | |||
| str[0] = (char)(T2 | (c >> 1 * Bitx)); | |||
| str[1] = (char)(Tx | (c & Maskx)); | |||
| return 2; | |||
| } | |||
| /* | |||
| * If the Rune is out of range or a surrogate half, convert it to the error | |||
| * rune. Do this test here because the error rune encodes to three bytes. | |||
| * Doing it earlier would duplicate work, since an out of range | |||
| * Rune wouldn't have fit in one or two bytes. | |||
| */ | |||
| if (c > Runemax) c = Runeerror; | |||
| if (SurrogateMin <= c && c <= SurrogateMax) c = Runeerror; | |||
| /* | |||
| * three character sequence | |||
| * 0800-FFFF => T3 Tx Tx | |||
| */ | |||
| if (c <= Rune3) { | |||
| str[0] = (char)(T3 | (c >> 2 * Bitx)); | |||
| str[1] = (char)(Tx | ((c >> 1 * Bitx) & Maskx)); | |||
| str[2] = (char)(Tx | (c & Maskx)); | |||
| return 3; | |||
| } | |||
| /* | |||
| * four character sequence (21-bit value) | |||
| * 10000-1FFFFF => T4 Tx Tx Tx | |||
| */ | |||
| str[0] = (char)(T4 | (c >> 3 * Bitx)); | |||
| str[1] = (char)(Tx | ((c >> 2 * Bitx) & Maskx)); | |||
| str[2] = (char)(Tx | ((c >> 1 * Bitx) & Maskx)); | |||
| str[3] = (char)(Tx | (c & Maskx)); | |||
| return 4; | |||
| } | |||
| int runelen(Rune rune) { | |||
| char str[10]; | |||
| return runetochar(str, &rune); | |||
| } | |||
| int runenlen(const Rune *r, int nrune) { | |||
| int nb, c; | |||
| nb = 0; | |||
| while (nrune--) { | |||
| c = (int)*r++; | |||
| if (c <= Rune1) | |||
| nb++; | |||
| else if (c <= Rune2) | |||
| nb += 2; | |||
| else if (c <= Rune3) | |||
| nb += 3; | |||
| else /* assert(c <= Rune4) */ | |||
| nb += 4; | |||
| } | |||
| return nb; | |||
| } | |||
| int fullrune(const char *str, int n) { | |||
| if (n > 0) { | |||
| int c = *(uchar *)str; | |||
| if (c < Tx) return 1; | |||
| if (n > 1) { | |||
| if (c < T3) return 1; | |||
| if (n > 2) { | |||
| if (c < T4 || n > 3) return 1; | |||
| } | |||
| } | |||
| } | |||
| return 0; | |||
| } | |||
| } // namespace phonenumbers | |||
| } // namespace i18n | |||