String QueryParseError::lexicalError(bool EOFSeen, int32_t lexState, int32_t errorLine, int32_t errorColumn,
const String& errorAfter, wchar_t curChar)
{
StringStream buffer;
buffer << L"Lexical error at line " << errorLine << L", column " << errorColumn + L". Encountered:";
if (EOFSeen)
buffer << L"<EOF>";
else
buffer << L"\"" << addEscapes(String(1, curChar)) << L"\"";
buffer << L" (" + (int32_t)curChar << L"), after : \"" << addEscapes(errorAfter) + L"\"";
return buffer.str();
}
String quoteIfNeeded(const String& str, bool forceQuote)
{
static String specialChars(" \"\\'");
for (unsigned i = 0; !forceQuote && i < str.length(); i++)
forceQuote |= (specialChars.find_first_of(str[i]) != string::npos);
if (forceQuote)
return "\"" + addEscapes(str, "\"") + "\"";
else
return str;
}
String QueryParseError::parseError(QueryParserTokenPtr currentToken, Collection< Collection<int32_t> > expectedTokenSequences,
Collection<String> tokenImage)
{
StringStream expected;
int32_t maxSize = 0;
for (int32_t i = 0; i < expectedTokenSequences.size(); ++i)
{
if (maxSize < expectedTokenSequences[i].size())
maxSize = expectedTokenSequences[i].size();
for (int32_t j = 0; j < expectedTokenSequences[i].size(); ++j)
expected << tokenImage[expectedTokenSequences[i][j]] << L" ";
if (expectedTokenSequences[i][expectedTokenSequences[i].size() - 1] != 0)
expected << L"...";
expected << L"\n ";
}
StringStream retval;
retval << L"Encountered \"";
QueryParserTokenPtr token(currentToken->next);
for (int32_t i = 0; i < maxSize; ++i)
{
if (i != 0)
retval << L" ";
if (token->kind == 0)
{
retval << tokenImage[0];
break;
}
retval << L" " << tokenImage[token->kind] << L" \"" << addEscapes(token->image) << L" \"";
token = token->next;
}
retval << L"\" at line " << currentToken->next->beginLine << L", column " << currentToken->next->beginColumn;
retval << L".\n";
if (expectedTokenSequences.size() == 1)
retval << L"Was expecting:\n ";
else
retval << L"Was expecting one of:\n ";
retval << expected.str();
return retval.str();
}
