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https://github.com/CLIUtils/CLI11.git
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494a65f812
This mostly is cleanup, with fewer alternative methods and more standard syntax, avoiding the use of the namespace all the time. Validators are simpler and are added through `->check()`. Defaults are automatic, and can be specified with a final arg to the options. Expected arguments and required arguments are now accessed through a pointer to option. Option now can be checked as a bool to see if the argument was passed. Errors have better organisation.
43 lines
1.0 KiB
C++
43 lines
1.0 KiB
C++
#pragma once
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// Distributed under the LGPL version 3.0 license. See accompanying
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// file LICENSE or https://github.com/henryiii/CLI11 for details.
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#include <string>
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// C standard library
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// Only needed for existence checking
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// Could be swapped for filesystem in C++17
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#include <sys/types.h>
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#include <sys/stat.h>
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namespace CLI {
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/// Check for an existing file
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bool ExistingFile(std::string filename) {
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// std::fstream f(name.c_str());
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// return f.good();
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// Fastest way according to http://stackoverflow.com/questions/12774207/fastest-way-to-check-if-a-file-exist-using-standard-c-c11-c
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struct stat buffer;
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return (stat(filename.c_str(), &buffer) == 0);
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}
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/// Check for an existing directory
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bool ExistingDirectory(std::string filename) {
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struct stat buffer;
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if(stat(filename.c_str(), &buffer) == 0 && (buffer.st_mode & S_IFDIR) )
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return true;
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return false;
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}
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/// Check for a non-existing path
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bool NonexistentPath(std::string filename) {
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struct stat buffer;
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return stat(filename.c_str(), &buffer) != 0;
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}
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}
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