FileHelpers.hpp File Reference

#include <atomic>
#include <filesystem>
#include <fstream>
#include <regex>
#include <string>
#include <sys/inotify.h>
#include <thread>
#include <vector>

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Classes
class	FileMonitor

Typedefs
using	FNotifyCallback = std::function<void(const void *)>
	Callback function for file notifications.

Functions
std::vector< std::string >	findFromFile (const std::string &filePath, const std::string &pattern, std::string &lastWord)
std::vector< std::string >	findFromFile (const std::string &filePath, const std::string &pattern)

Typedef Documentation

FNotifyCallback

using FNotifyCallback = std::function<void(const void *)>

Callback function for file notifications.

Definition at line 60 of file FileHelpers.hpp.

Function Documentation

findFromFile() [1/2]

std::vector< std::string > findFromFile ( const std::string & filePath, const std::string & pattern )

inline

Searches line patterns from a file

Parameters

[in]	filePath	Path to the file
[in]	pattern	Regex search pattern

Returns

std::vector<std::string> Matched lines

Definition at line 53 of file FileHelpers.hpp.

{
    std::string lastWord;
    return findFromFile(filePath, pattern, lastWord);
}

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findFromFile() [2/2]

std::vector< std::string > findFromFile ( const std::string & filePath, const std::string & pattern, std::string & lastWord )

inline

Searches line patterns from a file

Parameters

[in]	filePath	Path to the file
[in]	pattern	Regex search pattern
[out]	lastWord	Last word (space delimiter) of the first found line

Returns

std::vector<std::string> Matched lines

Definition at line 19 of file FileHelpers.hpp.

{
    const std::regex regExp(pattern);
    std::ifstream inFile(filePath);
    std::vector<std::string> matchedLines;
 
    std::string readLine;
    while (getline(inFile, readLine))
    {
        if (std::regex_search(readLine, regExp))
        {
            matchedLines.push_back(readLine);
        }
    }
 
    if (!matchedLines.empty())
    {
        auto pos = matchedLines.front().find_last_of(' ');
        if (pos != std::string::npos && pos != matchedLines.front().size())
        {
            lastWord = matchedLines.front().substr(pos + 1);
        }
    }
 
    return matchedLines;
}

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