41 lines
1.3 KiB
C++
41 lines
1.3 KiB
C++
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#include "npcommon.h"
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/* In a DBCS build, the Win32 CharUpper API will uppercase double-byte
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* Romanji characters, but many low-level network components such as
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* IFSMGR (and NetWare servers!) do not uppercase any double-byte
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* characters. So we have to have our own function which avoids them.
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*
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* This could be implemented by just calling CharUpper on each character,
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* but the NLS APIs have a fair amount of overhead to them, so calling
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* into the NLS subsystem as few times as possible is desirable.
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*/
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LPSTR WINAPI struprf(LPSTR lpString)
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{
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if (!::fDBCSEnabled)
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return CharUpper(lpString);
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LPSTR pchStart = lpString;
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while (*pchStart != '\0') {
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// Skip any double-byte characters that may be here.
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// Don't need to check for end of string in the loop because
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// the null terminator is not a DBCS lead byte.
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while (IsDBCSLeadByte(*pchStart))
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pchStart += 2; /* skip double-byte chars */
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if (*pchStart == '\0')
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break; /* no more SBCs to uppercase */
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// Find the end of this range of single-byte characters, and
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// uppercase them.
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LPSTR pchEnd = pchStart + 1;
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while (*pchEnd && !IsDBCSLeadByte(*pchEnd))
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pchEnd++; /* count single-byte chars */
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CharUpperBuff(pchStart, (int)(pchEnd-pchStart));
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pchStart = pchEnd;
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}
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return lpString;
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}
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