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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2014 Attila Molnar <attilamolnar@hush.com>
* Copyright (C) 2013, 2019 Sadie Powell <sadie@witchery.services>
*
* This file is part of InspIRCd. InspIRCd is free software: you can
* redistribute it and/or modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation, version 2.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
/** Represents the position within a file. */
class CoreExport FilePosition
{
public:
/** The name of the file that the position points to. */
std::string name;
/** The line of the file that this position points to. */
unsigned int line;
/** The column of the file that this position points to. */
unsigned int column;
/** Initialises a new file position with the specified name, line, and column.
* @param name The name of the file that the position points to.
* @param line The line of the file that this position points to.
* @param column The column of the file that this position points to.
*/
FilePosition(const std::string& Name, unsigned int Line, unsigned int Column);
/** Returns a string that represents this file position. */
std::string str() const;
};
/** Provides an easy method of reading a text file into memory. */
class CoreExport FileReader
{
/** The lines of text in the file. */
std::vector<std::string> lines;
/** File size in bytes. */
unsigned long totalSize = 0;
public:
/** Initializes a new file reader. */
FileReader() = default;
/** Initializes a new file reader and reads the specified file.
* @param filename The file to read into memory.
*/
FileReader(const std::string& filename);
/** Loads a text file from disk.
* @param filename The file to read into memory.
* @throw CoreException The file can not be loaded.
*/
void Load(const std::string& filename);
/** Retrieves the entire contents of the file cache as a single string. */
std::string GetString() const;
/** Retrieves the entire contents of the file cache as a vector of strings. */
const std::vector<std::string>& GetVector() const { return lines; }
/** Retrieves the total size in bytes of the file. */
unsigned long TotalSize() const { return totalSize; }
};
/** Implements methods for file system access */
class CoreExport FileSystem
{
private:
FileSystem() = delete;
public:
/** Expands a path fragment to a full path.
* @param base The base path to expand from
* @param fragment The path fragment to expand on top of base.
*/
static std::string ExpandPath(const std::string& base, const std::string& fragment);
/**
* Checks whether a file with the specified name exists on the filesystem.
* @param path The path to a file.
* @return True if the file exists; otherwise, false.
*/
static bool FileExists(const std::string& path);
/** Gets the file name segment of a path.
* @param path The path to extract the file name from.
* @return The file name segment of a path.
*/
static std::string GetFileName(const std::string& path);
/** Determines whether the given path starts with a Windows drive letter.
* @param path The path to validate.
* @returns True if the path begins with a Windows drive letter; otherwise, false.
*/
static bool StartsWithWindowsDriveLetter(const std::string& path);
};
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