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log/src/parser_utils.hpp

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/*
* Copyright Andrey Semashev 2007 - 2013.
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or copy at
* http://www.boost.org/LICENSE_1_0.txt)
*/
/*!
* \file parser_utils.hpp
* \author Andrey Semashev
* \date 31.03.2008
*
* \brief This header is the Boost.Log library implementation, see the library documentation
* at http://www.boost.org/doc/libs/release/libs/log/doc/html/index.html.
*/
#ifndef BOOST_LOG_PARSER_UTILS_HPP_INCLUDED_
#define BOOST_LOG_PARSER_UTILS_HPP_INCLUDED_
#include <string>
#include <iostream>
#include <cctype>
#include <boost/log/detail/config.hpp>
#include <boost/log/detail/header.hpp>
#ifdef BOOST_HAS_PRAGMA_ONCE
#pragma once
#endif
namespace boost {
BOOST_LOG_OPEN_NAMESPACE
namespace aux {
//! Some constants and algorithms needed for parsing
template< typename > struct char_constants;
#ifdef BOOST_LOG_USE_CHAR
template< >
struct char_constants< char >
{
typedef char char_type;
typedef std::basic_string< char_type > string_type;
static const char_type char_comment = '#';
static const char_type char_comma = ',';
static const char_type char_dot = '.';
static const char_type char_quote = '"';
static const char_type char_percent = '%';
static const char_type char_exclamation = '!';
static const char_type char_and = '&';
static const char_type char_or = '|';
static const char_type char_equal = '=';
static const char_type char_greater = '>';
static const char_type char_less = '<';
static const char_type char_underline = '_';
static const char_type char_backslash = '\\';
static const char_type char_section_bracket_left = '[';
static const char_type char_section_bracket_right = ']';
static const char_type char_paren_bracket_left = '(';
static const char_type char_paren_bracket_right = ')';
static const char_type* not_keyword() { return "not"; }
static const char_type* and_keyword() { return "and"; }
static const char_type* or_keyword() { return "or"; }
static const char_type* equal_keyword() { return "="; }
static const char_type* greater_keyword() { return ">"; }
static const char_type* less_keyword() { return "<"; }
static const char_type* not_equal_keyword() { return "!="; }
static const char_type* greater_or_equal_keyword() { return ">="; }
static const char_type* less_or_equal_keyword() { return "<="; }
static const char_type* begins_with_keyword() { return "begins_with"; }
static const char_type* ends_with_keyword() { return "ends_with"; }
static const char_type* contains_keyword() { return "contains"; }
static const char_type* matches_keyword() { return "matches"; }
static const char_type* message_text_keyword() { return "_"; }
static const char_type* true_keyword() { return "true"; }
static const char_type* false_keyword() { return "false"; }
static const char_type* default_level_attribute_name() { return "Severity"; }
static const char_type* core_section_name() { return "Core"; }
static const char_type* sink_section_name_prefix() { return "Sink:"; }
static const char_type* core_disable_logging_param_name() { return "DisableLogging"; }
static const char_type* filter_param_name() { return "Filter"; }
static const char_type* sink_destination_param_name() { return "Destination"; }
static const char_type* file_name_param_name() { return "FileName"; }
static const char_type* rotation_size_param_name() { return "RotationSize"; }
static const char_type* rotation_interval_param_name() { return "RotationInterval"; }
static const char_type* rotation_time_point_param_name() { return "RotationTimePoint"; }
static const char_type* append_param_name() { return "Append"; }
static const char_type* auto_flush_param_name() { return "AutoFlush"; }
static const char_type* asynchronous_param_name() { return "Asynchronous"; }
static const char_type* format_param_name() { return "Format"; }
static const char_type* provider_id_param_name() { return "ProviderID"; }
static const char_type* log_name_param_name() { return "LogName"; }
static const char_type* source_name_param_name() { return "LogSource"; }
static const char_type* registration_param_name() { return "Registration"; }
static const char_type* local_address_param_name() { return "LocalAddress"; }
static const char_type* target_address_param_name() { return "TargetAddress"; }
static const char_type* target_param_name() { return "Target"; }
static const char_type* max_size_param_name() { return "MaxSize"; }
static const char_type* min_free_space_param_name() { return "MinFreeSpace"; }
static const char_type* scan_for_files_param_name() { return "ScanForFiles"; }
static const char_type* scan_method_all() { return "All"; }
static const char_type* scan_method_matching() { return "Matching"; }
static const char_type* registration_never() { return "Never"; }
static const char_type* registration_on_demand() { return "OnDemand"; }
static const char_type* registration_forced() { return "Forced"; }
static const char_type* text_file_destination() { return "TextFile"; }
static const char_type* console_destination() { return "Console"; }
static const char_type* syslog_destination() { return "Syslog"; }
static const char_type* simple_event_log_destination() { return "SimpleEventLog"; }
static const char_type* debugger_destination() { return "Debugger"; }
static const char_type* monday_keyword() { return "Monday"; }
static const char_type* short_monday_keyword() { return "Mon"; }
static const char_type* tuesday_keyword() { return "Tuesday"; }
static const char_type* short_tuesday_keyword() { return "Tue"; }
static const char_type* wednesday_keyword() { return "Wednesday"; }
static const char_type* short_wednesday_keyword() { return "Wed"; }
static const char_type* thursday_keyword() { return "Thursday"; }
static const char_type* short_thursday_keyword() { return "Thu"; }
static const char_type* friday_keyword() { return "Friday"; }
static const char_type* short_friday_keyword() { return "Fri"; }
static const char_type* saturday_keyword() { return "Saturday"; }
static const char_type* short_saturday_keyword() { return "Sat"; }
static const char_type* sunday_keyword() { return "Sunday"; }
static const char_type* short_sunday_keyword() { return "Sun"; }
static std::ostream& get_console_log_stream() { return std::clog; }
static int to_number(char_type c)
{
using namespace std; // to make sure we can use C functions unqualified
int n = 0;
if (isdigit(c))
n = c - '0';
else if (c >= 'a' && c <= 'f')
n = c - 'a' + 10;
else if (c >= 'A' && c <= 'F')
n = c - 'A' + 10;
return n;
}
//! Skips spaces in the beginning of the input
static const char_type* trim_spaces_left(const char_type* begin, const char_type* end);
//! Skips spaces in the end of the input
static const char_type* trim_spaces_right(const char_type* begin, const char_type* end);
//! Scans for the attribute name placeholder in the input
static const char_type* scan_attr_placeholder(const char_type* begin, const char_type* end);
//! Parses an operand string (possibly quoted) from the input
static const char_type* parse_operand(const char_type* begin, const char_type* end, string_type& operand);
//! Converts escape sequences to the corresponding characters
static void translate_escape_sequences(string_type& str);
};
#endif
#ifdef BOOST_LOG_USE_WCHAR_T
template< >
struct char_constants< wchar_t >
{
typedef wchar_t char_type;
typedef std::basic_string< char_type > string_type;
static const char_type char_comment = L'#';
static const char_type char_comma = L',';
static const char_type char_dot = L'.';
static const char_type char_quote = L'"';
static const char_type char_percent = L'%';
static const char_type char_exclamation = L'!';
static const char_type char_and = L'&';
static const char_type char_or = L'|';
static const char_type char_equal = L'=';
static const char_type char_greater = L'>';
static const char_type char_less = L'<';
static const char_type char_underline = L'_';
static const char_type char_backslash = L'\\';
static const char_type char_section_bracket_left = L'[';
static const char_type char_section_bracket_right = L']';
static const char_type char_paren_bracket_left = L'(';
static const char_type char_paren_bracket_right = L')';
static const char_type* not_keyword() { return L"not"; }
static const char_type* and_keyword() { return L"and"; }
static const char_type* or_keyword() { return L"or"; }
static const char_type* equal_keyword() { return L"="; }
static const char_type* greater_keyword() { return L">"; }
static const char_type* less_keyword() { return L"<"; }
static const char_type* not_equal_keyword() { return L"!="; }
static const char_type* greater_or_equal_keyword() { return L">="; }
static const char_type* less_or_equal_keyword() { return L"<="; }
static const char_type* begins_with_keyword() { return L"begins_with"; }
static const char_type* ends_with_keyword() { return L"ends_with"; }
static const char_type* contains_keyword() { return L"contains"; }
static const char_type* matches_keyword() { return L"matches"; }
static const char_type* message_text_keyword() { return L"_"; }
static const char_type* true_keyword() { return L"true"; }
static const char_type* false_keyword() { return L"false"; }
static const char_type* default_level_attribute_name() { return L"Severity"; }
static const char_type* core_section_name() { return L"Core"; }
static const char_type* sink_section_name_prefix() { return L"Sink:"; }
static const char_type* core_disable_logging_param_name() { return L"DisableLogging"; }
static const char_type* filter_param_name() { return L"Filter"; }
static const char_type* sink_destination_param_name() { return L"Destination"; }
static const char_type* file_name_param_name() { return L"FileName"; }
static const char_type* rotation_size_param_name() { return L"RotationSize"; }
static const char_type* rotation_interval_param_name() { return L"RotationInterval"; }
static const char_type* rotation_time_point_param_name() { return L"RotationTimePoint"; }
static const char_type* append_param_name() { return L"Append"; }
static const char_type* auto_flush_param_name() { return L"AutoFlush"; }
static const char_type* asynchronous_param_name() { return L"Asynchronous"; }
static const char_type* format_param_name() { return L"Format"; }
static const char_type* provider_id_param_name() { return L"ProviderID"; }
static const char_type* log_name_param_name() { return L"LogName"; }
static const char_type* source_name_param_name() { return L"LogSource"; }
static const char_type* registration_param_name() { return L"Registration"; }
static const char_type* local_address_param_name() { return L"LocalAddress"; }
static const char_type* target_address_param_name() { return L"TargetAddress"; }
static const char_type* target_param_name() { return L"Target"; }
static const char_type* max_size_param_name() { return L"MaxSize"; }
static const char_type* min_free_space_param_name() { return L"MinFreeSpace"; }
static const char_type* scan_for_files_param_name() { return L"ScanForFiles"; }
static const char_type* scan_method_all() { return L"All"; }
static const char_type* scan_method_matching() { return L"Matching"; }
static const char_type* registration_never() { return L"Never"; }
static const char_type* registration_on_demand() { return L"OnDemand"; }
static const char_type* registration_forced() { return L"Forced"; }
static const char_type* text_file_destination() { return L"TextFile"; }
static const char_type* console_destination() { return L"Console"; }
static const char_type* syslog_destination() { return L"Syslog"; }
static const char_type* simple_event_log_destination() { return L"SimpleEventLog"; }
static const char_type* debugger_destination() { return L"Debugger"; }
static const char_type* monday_keyword() { return L"Monday"; }
static const char_type* short_monday_keyword() { return L"Mon"; }
static const char_type* tuesday_keyword() { return L"Tuesday"; }
static const char_type* short_tuesday_keyword() { return L"Tue"; }
static const char_type* wednesday_keyword() { return L"Wednesday"; }
static const char_type* short_wednesday_keyword() { return L"Wed"; }
static const char_type* thursday_keyword() { return L"Thursday"; }
static const char_type* short_thursday_keyword() { return L"Thu"; }
static const char_type* friday_keyword() { return L"Friday"; }
static const char_type* short_friday_keyword() { return L"Fri"; }
static const char_type* saturday_keyword() { return L"Saturday"; }
static const char_type* short_saturday_keyword() { return L"Sat"; }
static const char_type* sunday_keyword() { return L"Sunday"; }
static const char_type* short_sunday_keyword() { return L"Sun"; }
static std::wostream& get_console_log_stream() { return std::wclog; }
static int to_number(char_type c)
{
int n = 0;
if (c >= L'0' && c <= L'9')
n = c - L'0';
else if (c >= L'a' && c <= L'f')
n = c - L'a' + 10;
else if (c >= L'A' && c <= L'F')
n = c - L'A' + 10;
return n;
}
static bool iswxdigit(char_type c)
{
return (c >= L'0' && c <= L'9') || (c >= L'a' && c <= L'f') || (c >= L'A' && c <= L'F');
}
//! Skips spaces in the beginning of the input
static const char_type* trim_spaces_left(const char_type* begin, const char_type* end);
//! Skips spaces in the end of the input
static const char_type* trim_spaces_right(const char_type* begin, const char_type* end);
//! Scans for the attribute name placeholder in the input
static const char_type* scan_attr_placeholder(const char_type* begin, const char_type* end);
//! Parses an operand string (possibly quoted) from the input
static const char_type* parse_operand(const char_type* begin, const char_type* end, string_type& operand);
//! Converts escape sequences to the corresponding characters
static void translate_escape_sequences(string_type& str);
};
#endif
} // namespace aux
BOOST_LOG_CLOSE_NAMESPACE // namespace log
} // namespace boost
#include <boost/log/detail/footer.hpp>
#endif // BOOST_LOG_PARSER_UTILS_HPP_INCLUDED_