ClickHouse/src/Parsers/CommonParsers.cpp

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#include <Parsers/CommonParsers.h>
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#include <base/find_symbols.h>
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namespace DB
{
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bool ParserKeyword::parseImpl(Pos & pos, [[maybe_unused]] ASTPtr & node, Expected & expected)
{
if (pos->type != TokenType::BareWord)
return false;
const char * current_word = s.begin();
while (true)
{
expected.add(pos, current_word);
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if (pos->type != TokenType::BareWord)
return false;
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const char * const next_whitespace = find_first_symbols<' ', '\0'>(current_word, s.end());
const size_t word_length = next_whitespace - current_word;
if (word_length != pos->size())
return false;
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if (0 != strncasecmp(pos->begin, current_word, word_length))
return false;
++pos;
if (!*next_whitespace)
break;
current_word = next_whitespace + 1;
}
return true;
}
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}