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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef ImportCharSet_h___
#define ImportCharSet_h___
#include "nscore.h"
// Some useful ASCII values
// 'A' = 65, 0x41
// 'Z' = 90, 0x5a
// '_' = 95, 0x5f
// 'a' = 97, 0x61
// 'z' = 122, 0x7a
// '0' = 48, 0x30
// '1' = 49, 0x31
// '9' = 57, 0x39
// ' ' = 32, 0x20
// whitespace, 10, 13, 32, 9 (linefeed, cr, space, tab) - 0x0a, 0x0d, 0x20, 0x09
// ':' = 58, 0x3a
// a typedef enum would be nicer but some compilers still have trouble with treating
// enum's as plain numbers when needed
class ImportCharSet {
public:
enum {
cTabChar = 9,
cLinefeedChar = 10,
cCRChar = 13,
cSpaceChar = 32,
cUpperAChar = 65,
cUpperZChar = 90,
cUnderscoreChar = 95,
cLowerAChar = 97,
cLowerZChar = 122,
cZeroChar = 48,
cNineChar = 57,
cAlphaNumChar = 1,
cAlphaChar = 2,
cWhiteSpaceChar = 4,
cDigitChar = 8,
c822SpecialChar = 16
};
static char m_upperCaseMap[256];
static char m_Ascii[256];
inline static bool IsUSAscii(uint8_t ch) { return (((ch & (uint8_t)0x80) == 0));}
inline static bool Is822CtlChar(uint8_t ch) { return (ch < 32);}
inline static bool Is822SpecialChar(uint8_t ch) { return ((m_Ascii[ch] & c822SpecialChar) == c822SpecialChar);}
inline static bool IsWhiteSpace(uint8_t ch) { return ((m_Ascii[ch] & cWhiteSpaceChar) == cWhiteSpaceChar); }
inline static bool IsAlphaNum(uint8_t ch) { return ((m_Ascii[ch] & cAlphaNumChar) == cAlphaNumChar); }
inline static bool IsDigit(uint8_t ch) { return ((m_Ascii[ch] & cDigitChar) == cDigitChar); }
inline static uint8_t ToLower(uint8_t ch) { if ((m_Ascii[ch] & cAlphaChar) == cAlphaChar) { return cLowerAChar + (m_upperCaseMap[ch] - cUpperAChar); } else return ch; }
inline static long AsciiToLong(const uint8_t * pChar, uint32_t len) {
long num = 0;
while (len) {
if ((m_Ascii[*pChar] & cDigitChar) == 0)
return num;
num *= 10;
num += (*pChar - cZeroChar);
len--;
pChar++;
}
return num;
}
inline static void ByteToHex(uint8_t byte, uint8_t * pHex) {
uint8_t val = byte;
val /= 16;
if (val < 10)
*pHex = '0' + val;
else
*pHex = 'A' + (val - 10);
pHex++;
val = byte;
val &= 0x0F;
if (val < 10)
*pHex = '0' + val;
else
*pHex = 'A' + (val - 10);
}
inline static void LongToHexBytes(uint32_t type, uint8_t * pStr) {
ByteToHex((uint8_t) (type >> 24), pStr);
pStr += 2;
ByteToHex((uint8_t) ((type >> 16) & 0x0FF), pStr);
pStr += 2;
ByteToHex((uint8_t) ((type >> 8) & 0x0FF), pStr);
pStr += 2;
ByteToHex((uint8_t) (type & 0x0FF), pStr);
}
inline static void SkipWhiteSpace(const uint8_t * & pChar, uint32_t & pos, uint32_t max) {
while ((pos < max) && (IsWhiteSpace(*pChar))) {
pos++; pChar++;
}
}
inline static void SkipSpaceTab(const uint8_t * & pChar, uint32_t& pos, uint32_t max) {
while ((pos < max) && ((*pChar == (uint8_t)cSpaceChar) || (*pChar == (uint8_t)cTabChar))) {
pos++; pChar++;
}
}
inline static void SkipTilSpaceTab(const uint8_t * & pChar, uint32_t& pos, uint32_t max) {
while ((pos < max) && (*pChar != (uint8_t)cSpaceChar) && (*pChar != (uint8_t)cTabChar)) {
pos++;
pChar++;
}
}
inline static bool StrNICmp(const uint8_t * pChar, const uint8_t * pSrc, uint32_t len) {
while (len && (m_upperCaseMap[*pChar] == m_upperCaseMap[*pSrc])) {
pChar++; pSrc++; len--;
}
return len == 0;
}
inline static bool StrNCmp(const uint8_t * pChar, const uint8_t *pSrc, uint32_t len) {
while (len && (*pChar == *pSrc)) {
pChar++; pSrc++; len--;
}
return len == 0;
}
inline static int FindChar(const uint8_t * pChar, uint8_t ch, uint32_t max) {
uint32_t pos = 0;
while ((pos < max) && (*pChar != ch)) {
pos++; pChar++;
}
if (pos < max)
return (int) pos;
else
return -1;
}
inline static bool NextChar(const uint8_t * & pChar, uint8_t ch, uint32_t& pos, uint32_t max) {
if ((pos < max) && (*pChar == ch)) {
pos++;
pChar++;
return true;
}
return false;
}
inline static int32_t strcmp(const char * pS1, const char * pS2) {
while (*pS1 && *pS2 && (*pS1 == *pS2)) {
pS1++;
pS2++;
}
return *pS1 - *pS2;
}
inline static int32_t stricmp(const char * pS1, const char * pS2) {
while (*pS1 && *pS2 && (m_upperCaseMap[uint8_t(*pS1)] == m_upperCaseMap[uint8_t(*pS2)])) {
pS1++;
pS2++;
}
return m_upperCaseMap[uint8_t(*pS1)] - m_upperCaseMap[uint8_t(*pS2)];
}
};
#endif /* ImportCharSet_h__ */
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