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130 lines
4.4 KiB
Plaintext
130 lines
4.4 KiB
Plaintext
#ifndef __UnicodeInlines_incl_cpp__
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#define __UnicodeInlines_incl_cpp__
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// =================================================================================================
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// Copyright 2002-2007 Adobe Systems Incorporated
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// All Rights Reserved.
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//
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// NOTICE: Adobe permits you to use, modify, and distribute this file in accordance with the terms
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// of the Adobe license agreement accompanying it.
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// =================================================================================================
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#include "UnicodeConversions.hpp"
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// =================================================================================================
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// Inner loop utilities that need to be inlined.
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// =================================================================================================
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static inline XMP_Uns32 GetCodePoint ( const XMP_Uns8 ** utf8Str_io )
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{
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const XMP_Uns8 * u8Ptr = *utf8Str_io;
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XMP_Uns32 cp;
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size_t u8Len;
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CodePoint_from_UTF8 ( u8Ptr, 4, &cp, &u8Len ); // Throws an exception for errors.
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*utf8Str_io = u8Ptr + u8Len;
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return cp;
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}
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// =================================================================================================
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static inline bool IsStartChar_ASCII ( XMP_Uns32 cp )
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{
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// ASCII starting characters for an XML name.
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if ( (('a' <= cp) && (cp <= 'z')) || (('A' <= cp) && (cp <= 'Z')) || (cp == '_') ) return true;
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return false;
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}
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// -------------------------------------------------------------------------------------------------
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static inline bool IsStartChar_NonASCII ( XMP_Uns32 cp )
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{
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// Non-ASCII starting characters for an XML name.
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if ( ((0xC0 <= cp) && (cp <= 0xD6)) || ((0xD8 <= cp) && (cp <= 0xF6)) ) return true;
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if ( ((0xF8 <= cp) && (cp <= 0x2FF)) || ((0x370 <= cp) && (cp <= 0x37D)) ) return true;
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if ( ((0x37F <= cp) && (cp <= 0x1FFF)) || ((0x200C <= cp) && (cp <= 0x200D)) ) return true;
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if ( ((0x2070 <= cp) && (cp <= 0x218F)) || ((0x2C00 <= cp) && (cp <= 0x2FEF)) ) return true;
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if ( ((0x3001 <= cp) && (cp <= 0xD7FF)) || ((0xF900 <= cp) && (cp <= 0xFDCF)) ) return true;
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if ( ((0xFDF0 <= cp) && (cp <= 0xFFFD)) || ((0x10000 <= cp) && (cp <= 0xEFFFF)) ) return true;
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return false;
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}
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// -------------------------------------------------------------------------------------------------
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static inline bool IsOtherChar_ASCII ( XMP_Uns32 cp )
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{
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// ASCII following characters for an XML name.
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if ( (('0' <= cp) && (cp <= '9')) || (cp == '-') || (cp == '.') ) return true;
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return false;
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}
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// -------------------------------------------------------------------------------------------------
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static inline bool IsOtherChar_NonASCII ( XMP_Uns32 cp )
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{
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// Non-ASCII following characters for an XML name.
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if ( (cp == 0xB7) || ((0x300 <= cp) && (cp <= 0x36F)) || ((0x203F <= cp) && (cp <= 0x2040)) ) return true;
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return false;
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}
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// -------------------------------------------------------------------------------------------------
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static inline void VerifyUTF8 ( XMP_StringPtr str )
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{
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const XMP_Uns8 * utf8Str = (XMP_Uns8*)str;
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while ( *utf8Str != 0 ) {
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while ( (*utf8Str != 0) && (*utf8Str < 0x80) ) ++utf8Str;
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if ( *utf8Str >= 0x80 ) (void) GetCodePoint ( &utf8Str ); // Throws for bad UTF-8.
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}
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}
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// -------------------------------------------------------------------------------------------------
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static inline void VerifySimpleXMLName ( XMP_StringPtr _nameStart, XMP_StringPtr _nameEnd )
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{
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const XMP_Uns8 * nameStart = (const XMP_Uns8 *) _nameStart;
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const XMP_Uns8 * nameEnd = (const XMP_Uns8 *) _nameEnd;
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const XMP_Uns8 * namePos = nameStart;
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XMP_Uns32 cp;
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// The first character is more restricted.
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if ( nameStart >= nameEnd ) XMP_Throw ( "Empty XML name", kXMPErr_BadXPath );
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cp = *namePos;
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if ( cp < 0x80 ) {
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++namePos;
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if ( ! IsStartChar_ASCII(cp) ) goto NameError;
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} else {
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cp = GetCodePoint ( &namePos );
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if ( ! IsStartChar_NonASCII(cp) ) goto NameError;
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}
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// Check the rest of the name.
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while ( namePos < nameEnd ) {
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cp = *namePos;
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if ( cp < 0x80 ) {
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++namePos;
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if ( (! IsStartChar_ASCII(cp)) && (! IsOtherChar_ASCII(cp)) ) goto NameError;
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} else {
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cp = GetCodePoint ( &namePos );
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if ( (! IsStartChar_NonASCII(cp)) && (! IsOtherChar_NonASCII(cp)) ) goto NameError;
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}
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}
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return;
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NameError:
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XMP_Throw ( "Bad XML name", kXMPErr_BadXPath );
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} // VerifySimpleXMLName
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// =================================================================================================
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#endif // __UnicodeInlines_incl_cpp__
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