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https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#cother-other-default-operation-rules "The compiler is more likely to get the default semantics right and you cannot implement these functions better than the compiler."
53 lines
1.9 KiB
C++
53 lines
1.9 KiB
C++
/*
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* Copyright (c) 2021, ry755 <ryanst755@gmail.com>
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* Copyright (c) 2022, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "FileArgument.h"
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#include <LibCore/File.h>
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#include <LibRegex/Regex.h>
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namespace TextEditor {
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FileArgument::FileArgument(String file_argument)
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{
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m_line = {};
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m_column = {};
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// A file doesn't exist with the full specified name, maybe the user entered line/column coordinates?
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Regex<PosixExtended> re("^(.+?)(:([0-9]+):?([0-9]+)?)?$");
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RegexResult result = match(file_argument, re, PosixFlags::Global | PosixFlags::Multiline | PosixFlags::Ungreedy);
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auto& groups = result.capture_group_matches.at(0);
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// Match 0 group 0: file name
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// Match 0 group 1: line number
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// Match 0 group 2: column number
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if (groups.size() > 3) {
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// Both a line and column number were specified.
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auto filename = groups.at(0).view.to_string();
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auto initial_line_number = groups.at(1).view.to_string().to_int();
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auto initial_column_number = groups.at(2).view.to_string().to_int();
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m_filename = filename;
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if (initial_line_number.has_value() && initial_line_number.value() > 0)
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m_line = initial_line_number.value();
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if (initial_column_number.has_value())
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m_column = initial_column_number.value();
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} else if (groups.size() == 3) {
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// Only a line number was specified.
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auto filename = groups.at(0).view.to_string();
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auto initial_line_number = groups.at(1).view.to_string().to_int();
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m_filename = filename;
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if (initial_line_number.has_value() && initial_line_number.value() > 0)
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m_line = initial_line_number.value();
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} else {
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// A colon was found at the end of the file name but no values were found after it.
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m_filename = groups.at(0).view.to_string();
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}
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}
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}
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