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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "parser.h"
#include "parser_limits.h"
#include "scanner.h"
#include <vespa/document/base/exceptions.h>
#include <vespa/document/util/stringutil.h>
#include <vespa/vespalib/util/stringfmt.h>
#include <sstream>
namespace document::select {
namespace {
void verify_expression_not_too_large(const std::string& expr) {
if (expr.size() > ParserLimits::MaxSelectionByteSize) {
throw ParsingFailedException(vespalib::make_string(
"expression is too large to be parsed (max %zu bytes, got %zu)",
ParserLimits::MaxSelectionByteSize, expr.size()));
}
}
}
std::unique_ptr<Node> Parser::parse(const std::string& str) const {
verify_expression_not_too_large(str);
try {
std::istringstream ss(str);
DocSelScanner scanner(&ss);
std::unique_ptr<Node> root;
DocSelParser parser(scanner, _bucket_id_factory, _doc_type_repo, root);
if (parser.parse() != 0) {
throw ParsingFailedException(
vespalib::make_string("Unknown parse failure while parsing selection '%s'", str.c_str()),
VESPA_STRLOC);
}
return root;
} catch (const DocSelParser::syntax_error& err) {
throw ParsingFailedException(
vespalib::make_string("%s at column %u when parsing selection '%s'",
err.what(), err.location.begin.column, str.c_str()),
VESPA_STRLOC);
}
}
}
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