101 lines
1.7 KiB
C++
101 lines
1.7 KiB
C++
|
/* Copyright (C) Microsoft Corporation, 1998. All rights reserved. */
|
||
|
|
|
||
|
|
#include "precomp.h"
|
||
|
|
#include "utils.h"
|
||
|
|
|
||
|
|
|
||
|
|
LPSTR My_strdup ( LPCSTR pszSrc )
|
||
|
|
{
|
||
|
|
LPSTR pszDst = NULL;
|
||
|
|
if (NULL != pszSrc)
|
||
|
|
{
|
||
|
|
UINT cch = ::strlen(pszSrc) + 1;
|
||
|
|
if (NULL != (pszDst = new char[cch]))
|
||
|
|
{
|
||
|
|
::CopyMemory(pszDst, pszSrc, cch);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return pszDst;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
const LPSTR c_apszKeywords[] =
|
||
|
|
{
|
||
|
|
"ANY",
|
||
|
|
"AUTOMATIC",
|
||
|
|
"BEGIN",
|
||
|
|
"BIT",
|
||
|
|
"BMPString",
|
||
|
|
"BY",
|
||
|
|
"CHOICE",
|
||
|
|
"COMPONENT",
|
||
|
|
"CONSTRAINED",
|
||
|
|
"DEFINITIONS",
|
||
|
|
"END",
|
||
|
|
"FROM",
|
||
|
|
"IDENTIFIER",
|
||
|
|
"IMPORTS",
|
||
|
|
"INTEGER",
|
||
|
|
"IV8",
|
||
|
|
"NULL",
|
||
|
|
"OBJECT",
|
||
|
|
"OCTET",
|
||
|
|
"OPTIONAL",
|
||
|
|
"SEQUENCE",
|
||
|
|
"SIZE",
|
||
|
|
"STRING",
|
||
|
|
"SYNTAX",
|
||
|
|
"TAGS",
|
||
|
|
"WITH",
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
BOOL IsKeyword ( LPSTR pszSymbol )
|
||
|
|
{
|
||
|
|
return (BOOL) BinarySearch_Str(pszSymbol, &c_apszKeywords[0], ARRAY_SIZE(c_apszKeywords));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
LPSTR BinarySearch_Str ( LPSTR pszKey, const LPSTR aKeyTbl[], UINT cKeys )
|
||
|
|
{
|
||
|
|
UINT lo = 0;
|
||
|
|
UINT hi = cKeys - 1;
|
||
|
|
UINT num = cKeys;
|
||
|
|
UINT mid, half;
|
||
|
|
int result;
|
||
|
|
|
||
|
|
while (lo <= hi)
|
||
|
|
{
|
||
|
|
if (0 != (half = num >> 1))
|
||
|
|
{
|
||
|
|
mid = lo + ((num - 1) >> 1);
|
||
|
|
if (0 == (result = ::strcmp(pszKey, aKeyTbl[mid])))
|
||
|
|
{
|
||
|
|
return aKeyTbl[mid];
|
||
|
|
}
|
||
|
|
else if (result < 0)
|
||
|
|
{
|
||
|
|
hi = mid - 1;
|
||
|
|
num = (num - 1) >> 1;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
lo = mid + 1;
|
||
|
|
num = half;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else if (num)
|
||
|
|
{
|
||
|
|
return (::strcmp(pszKey, aKeyTbl[lo]) ? NULL : aKeyTbl[lo]);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
|