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Error string re-work

This commit is contained in:
Lee Thomason 2017-09-19 17:54:31 -07:00
parent 3a37e64113
commit aa1883928b
2 changed files with 46 additions and 50 deletions
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82
tinyxml2.cpp
View File

@ -165,6 +165,7 @@ void StrPair::TransferTo( StrPair* other )
_end = 0; _end = 0;
} }
void StrPair::Reset() void StrPair::Reset()
{ {
if ( _flags & NEEDS_DELETE ) { if ( _flags & NEEDS_DELETE ) {
@ -1018,7 +1019,7 @@ char* XMLNode::ParseDeep( char* p, StrPair* parentEndTag, int* curLineNumPtr )
if ( !p ) { if ( !p ) {
DeleteNode( node ); DeleteNode( node );
if ( !_document->Error() ) { if ( !_document->Error() ) {
_document->SetError( XML_ERROR_PARSING, 0, 0, initialLineNum); _document->SetError( XML_ERROR_PARSING, initialLineNum, 0);
} }
break; break;
} }
@ -1038,7 +1039,7 @@ char* XMLNode::ParseDeep( char* p, StrPair* parentEndTag, int* curLineNumPtr )
} }
} }
if ( !wellLocated ) { if ( !wellLocated ) {
_document->SetError( XML_ERROR_PARSING_DECLARATION, decl->Value(), 0, initialLineNum); _document->SetError( XML_ERROR_PARSING_DECLARATION, initialLineNum, "value: %s", decl->Value());
DeleteNode( node ); DeleteNode( node );
break; break;
} }
@ -1073,7 +1074,7 @@ char* XMLNode::ParseDeep( char* p, StrPair* parentEndTag, int* curLineNumPtr )
} }
} }
if ( mismatch ) { if ( mismatch ) {
_document->SetError( XML_ERROR_MISMATCHED_ELEMENT, ele->Name(), 0, initialLineNum); _document->SetError( XML_ERROR_MISMATCHED_ELEMENT, initialLineNum, "name=%s", ele->Name());
DeleteNode( node ); DeleteNode( node );
break; break;
} }
@ -1134,7 +1135,7 @@ char* XMLText::ParseDeep( char* p, StrPair*, int* curLineNumPtr )
if ( this->CData() ) { if ( this->CData() ) {
p = _value.ParseText( p, "]]>", StrPair::NEEDS_NEWLINE_NORMALIZATION, curLineNumPtr ); p = _value.ParseText( p, "]]>", StrPair::NEEDS_NEWLINE_NORMALIZATION, curLineNumPtr );
if ( !p ) { if ( !p ) {
_document->SetError( XML_ERROR_PARSING_CDATA, start, 0, _parseLineNum ); _document->SetError( XML_ERROR_PARSING_CDATA, _parseLineNum, 0 );
} }
return p; return p;
} }
@ -1149,7 +1150,7 @@ char* XMLText::ParseDeep( char* p, StrPair*, int* curLineNumPtr )
return p-1; return p-1;
} }
if ( !p ) { if ( !p ) {
_document->SetError( XML_ERROR_PARSING_TEXT, start, 0, _parseLineNum ); _document->SetError( XML_ERROR_PARSING_TEXT, _parseLineNum, 0 );
} }
} }
return 0; return 0;
@ -1200,7 +1201,7 @@ char* XMLComment::ParseDeep( char* p, StrPair*, int* curLineNumPtr )
const char* start = p; const char* start = p;
p = _value.ParseText( p, "-->", StrPair::COMMENT, curLineNumPtr ); p = _value.ParseText( p, "-->", StrPair::COMMENT, curLineNumPtr );
if ( p == 0 ) { if ( p == 0 ) {
_document->SetError( XML_ERROR_PARSING_COMMENT, start, 0, _parseLineNum ); _document->SetError( XML_ERROR_PARSING_COMMENT, _parseLineNum, 0 );
} }
return p; return p;
} }
@ -1250,7 +1251,7 @@ char* XMLDeclaration::ParseDeep( char* p, StrPair*, int* curLineNumPtr )
const char* start = p; const char* start = p;
p = _value.ParseText( p, "?>", StrPair::NEEDS_NEWLINE_NORMALIZATION, curLineNumPtr ); p = _value.ParseText( p, "?>", StrPair::NEEDS_NEWLINE_NORMALIZATION, curLineNumPtr );
if ( p == 0 ) { if ( p == 0 ) {
_document->SetError( XML_ERROR_PARSING_DECLARATION, start, 0, _parseLineNum ); _document->SetError( XML_ERROR_PARSING_DECLARATION, _parseLineNum, 0 );
} }
return p; return p;
} }
@ -1300,7 +1301,7 @@ char* XMLUnknown::ParseDeep( char* p, StrPair*, int* curLineNumPtr )
p = _value.ParseText( p, ">", StrPair::NEEDS_NEWLINE_NORMALIZATION, curLineNumPtr ); p = _value.ParseText( p, ">", StrPair::NEEDS_NEWLINE_NORMALIZATION, curLineNumPtr );
if ( !p ) { if ( !p ) {
_document->SetError( XML_ERROR_PARSING_UNKNOWN, start, 0, _parseLineNum ); _document->SetError( XML_ERROR_PARSING_UNKNOWN, _parseLineNum, 0 );
} }
return p; return p;
} }
@ -1810,7 +1811,7 @@ char* XMLElement::ParseAttributes( char* p, int* curLineNumPtr )
while( p ) { while( p ) {
p = XMLUtil::SkipWhiteSpace( p, curLineNumPtr ); p = XMLUtil::SkipWhiteSpace( p, curLineNumPtr );
if ( !(*p) ) { if ( !(*p) ) {
_document->SetError( XML_ERROR_PARSING_ELEMENT, start, Name(), _parseLineNum ); _document->SetError( XML_ERROR_PARSING_ELEMENT, _parseLineNum, "element name=%s", Name() );
return 0; return 0;
} }
@ -1825,7 +1826,7 @@ char* XMLElement::ParseAttributes( char* p, int* curLineNumPtr )
p = attrib->ParseDeep( p, _document->ProcessEntities(), curLineNumPtr ); p = attrib->ParseDeep( p, _document->ProcessEntities(), curLineNumPtr );
if ( !p || Attribute( attrib->Name() ) ) { if ( !p || Attribute( attrib->Name() ) ) {
DeleteAttribute( attrib ); DeleteAttribute( attrib );
_document->SetError( XML_ERROR_PARSING_ATTRIBUTE, start, p, attrLineNum ); _document->SetError( XML_ERROR_PARSING_ATTRIBUTE, attrLineNum, "element name=%s", Name() );
return 0; return 0;
} }
// There is a minor bug here: if the attribute in the source xml // There is a minor bug here: if the attribute in the source xml
@ -1854,7 +1855,7 @@ char* XMLElement::ParseAttributes( char* p, int* curLineNumPtr )
return p+2; // done; sealed element. return p+2; // done; sealed element.
} }
else { else {
_document->SetError( XML_ERROR_PARSING_ELEMENT, start, p, _parseLineNum ); _document->SetError( XML_ERROR_PARSING_ELEMENT, _parseLineNum, 0 );
return 0; return 0;
} }
} }
@ -2152,7 +2153,7 @@ XMLError XMLDocument::LoadFile( const char* filename )
Clear(); Clear();
FILE* fp = callfopen( filename, "rb" ); FILE* fp = callfopen( filename, "rb" );
if ( !fp ) { if ( !fp ) {
SetError( XML_ERROR_FILE_NOT_FOUND, filename, 0, 0 ); SetError( XML_ERROR_FILE_NOT_FOUND, 0, "filename=%s", filename );
return _errorID; return _errorID;
} }
LoadFile( fp ); LoadFile( fp );
@ -2189,7 +2190,7 @@ XMLError XMLDocument::LoadFile( FILE* fp )
fseek( fp, 0, SEEK_SET ); fseek( fp, 0, SEEK_SET );
if ( fgetc( fp ) == EOF && ferror( fp ) != 0 ) { if ( fgetc( fp ) == EOF && ferror( fp ) != 0 ) {
SetError( XML_ERROR_FILE_READ_ERROR, 0, 0, 0 ); SetError( XML_ERROR_FILE_READ_ERROR, 0, 0 );
return _errorID; return _errorID;
} }
@ -2197,19 +2198,19 @@ XMLError XMLDocument::LoadFile( FILE* fp )
const long filelength = ftell( fp ); const long filelength = ftell( fp );
fseek( fp, 0, SEEK_SET ); fseek( fp, 0, SEEK_SET );
if ( filelength == -1L ) { if ( filelength == -1L ) {
SetError( XML_ERROR_FILE_READ_ERROR, 0, 0, 0 ); SetError( XML_ERROR_FILE_READ_ERROR, 0, 0 );
return _errorID; return _errorID;
} }
TIXMLASSERT( filelength >= 0 ); TIXMLASSERT( filelength >= 0 );
if ( !LongFitsIntoSizeTMinusOne<>::Fits( filelength ) ) { if ( !LongFitsIntoSizeTMinusOne<>::Fits( filelength ) ) {
// Cannot handle files which won't fit in buffer together with null terminator // Cannot handle files which won't fit in buffer together with null terminator
SetError( XML_ERROR_FILE_READ_ERROR, 0, 0, 0 ); SetError( XML_ERROR_FILE_READ_ERROR, 0, 0 );
return _errorID; return _errorID;
} }
if ( filelength == 0 ) { if ( filelength == 0 ) {
SetError( XML_ERROR_EMPTY_DOCUMENT, 0, 0, 0 ); SetError( XML_ERROR_EMPTY_DOCUMENT, 0, 0 );
return _errorID; return _errorID;
} }
@ -2218,7 +2219,7 @@ XMLError XMLDocument::LoadFile( FILE* fp )
_charBuffer = new char[size+1]; _charBuffer = new char[size+1];
size_t read = fread( _charBuffer, 1, size, fp ); size_t read = fread( _charBuffer, 1, size, fp );
if ( read != size ) { if ( read != size ) {
SetError( XML_ERROR_FILE_READ_ERROR, 0, 0, 0 ); SetError( XML_ERROR_FILE_READ_ERROR, 0, 0 );
return _errorID; return _errorID;
} }
@ -2233,7 +2234,7 @@ XMLError XMLDocument::SaveFile( const char* filename, bool compact )
{ {
FILE* fp = callfopen( filename, "w" ); FILE* fp = callfopen( filename, "w" );
if ( !fp ) { if ( !fp ) {
SetError( XML_ERROR_FILE_COULD_NOT_BE_OPENED, filename, 0, 0 ); SetError( XML_ERROR_FILE_COULD_NOT_BE_OPENED, 0, "filename=%s", filename );
return _errorID; return _errorID;
} }
SaveFile(fp, compact); SaveFile(fp, compact);
@ -2258,7 +2259,7 @@ XMLError XMLDocument::Parse( const char* p, size_t len )
Clear(); Clear();
if ( len == 0 || !p || !*p ) { if ( len == 0 || !p || !*p ) {
SetError( XML_ERROR_EMPTY_DOCUMENT, 0, 0, 0 ); SetError( XML_ERROR_EMPTY_DOCUMENT, 0, 0 );
return _errorID; return _errorID;
} }
if ( len == (size_t)(-1) ) { if ( len == (size_t)(-1) ) {
@ -2296,21 +2297,29 @@ void XMLDocument::Print( XMLPrinter* streamer ) const
} }
void XMLDocument::SetError( XMLError error, const char* str1, const char* str2, int lineNum ) void XMLDocument::SetError( XMLError error, int lineNum, const char* format, ... )
{ {
TIXMLASSERT( error >= 0 && error < XML_ERROR_COUNT ); TIXMLASSERT( error >= 0 && error < XML_ERROR_COUNT );
_errorID = error; _errorID = error;
_errorStr.Reset();
_errorStr1.Reset(); if (format) {
_errorStr2.Reset(); size_t BUFFER_SIZE = 1000;
_errorLineNum = lineNum; char* buffer = new char[BUFFER_SIZE];
TIXML_SNPRINTF(buffer, BUFFER_SIZE, "Error=%s ErrorID=%d line=%d ", ErrorIDToName(error), int(error), lineNum);
size_t len = strlen(buffer);
if (str1) va_list va;
_errorStr1.SetStr(str1); va_start( va, format );
if (str2) int result = TIXML_VSNPRINTF( buffer + len, BUFFER_SIZE - len, format, va );
_errorStr2.SetStr(str2); va_end( va );
_errorStr.SetStr(buffer);
delete [] buffer;
}
} }
/*static*/ const char* XMLDocument::ErrorIDToName(XMLError errorID) /*static*/ const char* XMLDocument::ErrorIDToName(XMLError errorID)
{ {
TIXMLASSERT( errorID >= 0 && errorID < XML_ERROR_COUNT ); TIXMLASSERT( errorID >= 0 && errorID < XML_ERROR_COUNT );
@ -2319,14 +2328,9 @@ void XMLDocument::SetError( XMLError error, const char* str1, const char* str2,
return errorName; return errorName;
} }
const char* XMLDocument::GetErrorStr1() const const char* XMLDocument::GetErrorStr() const
{ {
return _errorStr1.GetStr(); return _errorStr.Empty() ? "" : _errorStr.GetStr();
}
const char* XMLDocument::GetErrorStr2() const
{
return _errorStr2.GetStr();
} }
const char* XMLDocument::ErrorName() const const char* XMLDocument::ErrorName() const
@ -2341,13 +2345,9 @@ void XMLDocument::PrintError() const
char buf1[LEN] = { 0 }; char buf1[LEN] = { 0 };
char buf2[LEN] = { 0 }; char buf2[LEN] = { 0 };
if ( !_errorStr1.Empty() ) { if ( !_errorStr.Empty() ) {
TIXML_SNPRINTF( buf1, LEN, "%s", _errorStr1.GetStr() ); TIXML_SNPRINTF( buf1, LEN, "%s", _errorStr.GetStr() );
} }
if ( !_errorStr2.Empty() ) {
TIXML_SNPRINTF( buf2, LEN, "%s", _errorStr2.GetStr() );
}
// Should check INT_MIN <= _errorID && _errorId <= INT_MAX, but that // Should check INT_MIN <= _errorID && _errorId <= INT_MAX, but that
// causes a clang "always true" -Wtautological-constant-out-of-range-compare warning // causes a clang "always true" -Wtautological-constant-out-of-range-compare warning
TIXMLASSERT( 0 <= _errorID && XML_ERROR_COUNT - 1 <= INT_MAX ); TIXMLASSERT( 0 <= _errorID && XML_ERROR_COUNT - 1 <= INT_MAX );
@ -2366,7 +2366,7 @@ void XMLDocument::Parse()
p = XMLUtil::SkipWhiteSpace( p, &_parseCurLineNum ); p = XMLUtil::SkipWhiteSpace( p, &_parseCurLineNum );
p = const_cast<char*>( XMLUtil::ReadBOM( p, &_writeBOM ) ); p = const_cast<char*>( XMLUtil::ReadBOM( p, &_writeBOM ) );
if ( !*p ) { if ( !*p ) {
SetError( XML_ERROR_EMPTY_DOCUMENT, 0, 0, 0 ); SetError( XML_ERROR_EMPTY_DOCUMENT, 0, 0 );
return; return;
} }
ParseDeep(p, 0, &_parseCurLineNum ); ParseDeep(p, 0, &_parseCurLineNum );

12
tinyxml2.h
View File

@ -1785,10 +1785,10 @@ public:
*/ */
void DeleteNode( XMLNode* node ); void DeleteNode( XMLNode* node );
void SetError( XMLError error, const char* str1, const char* str2, int lineNum ); void SetError( XMLError error, int lineNum, const char* format, ... );
void ClearError() { void ClearError() {
SetError(XML_SUCCESS, 0, 0, 0); SetError(XML_SUCCESS, 0, 0);
} }
/// Return true if there was an error parsing the document. /// Return true if there was an error parsing the document.
@ -1803,10 +1803,7 @@ public:
static const char* ErrorIDToName(XMLError errorID); static const char* ErrorIDToName(XMLError errorID);
/// Return a possibly helpful diagnostic location or string. /// Return a possibly helpful diagnostic location or string.
const char* GetErrorStr1() const; const char* GetErrorStr() const;
/// Return a possibly helpful secondary diagnostic location or string.
const char* GetErrorStr2() const;
/// Return the line where the error occured, or zero if unknown. /// Return the line where the error occured, or zero if unknown.
int GetErrorLineNum() const int GetErrorLineNum() const
@ -1849,8 +1846,7 @@ private:
bool _processEntities; bool _processEntities;
XMLError _errorID; XMLError _errorID;
Whitespace _whitespaceMode; Whitespace _whitespaceMode;
mutable StrPair _errorStr1; mutable StrPair _errorStr;
mutable StrPair _errorStr2;
int _errorLineNum; int _errorLineNum;
char* _charBuffer; char* _charBuffer;
int _parseCurLineNum; int _parseCurLineNum;