GoaLitiuM/FlaxEngine
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add function for parsing command-line arguments into argument list

Browse Source
This commit is contained in:
Ari Vuollet
2025-12-18 21:01:42 +02:00
parent 608353b996
commit ef89501111
3 changed files with 152 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

61
Source/Engine/Engine/CommandLine.cpp
View File

@@ -3,6 +3,7 @@
#include "CommandLine.h"
#include "Engine/Core/Collections/Array.h"
#include "Engine/Core/Utilities.h"
#include "Engine/Core/Types/StringView.h"
#include <iostream>
CommandLine::OptionsData CommandLine::Options;
@@ -170,3 +171,63 @@ bool CommandLine::Parse(const Char* cmdLine)
return false;
}
bool CommandLine::ParseArguments(const StringView& cmdLine, Array<StringAnsi>& arguments)
{
int32 start = 0;
int32 quotesStart = -1;
int32 length = cmdLine.Length();
for (int32 i = 0; i < length; i++)
{
if (cmdLine[i] == ' ' && quotesStart == -1)
{
int32 count = i - start;
if (count > 0)
arguments.Add(StringAnsi(cmdLine.Substring(start, count)));
start = i + 1;
}
else if (cmdLine[i] == '\"')
{
if (quotesStart >= 0)
{
if (i + 1 < length && cmdLine[i + 1] != ' ')
{
// End quotes are in the middle of the current word,
// continue until the end of the current word.
}
else
{
int32 offset = 1;
if (quotesStart == start && cmdLine[start] == '\"')
{
// Word starts and ends with quotes, only include the quoted content.
quotesStart++;
offset--;
}
else if (quotesStart != start)
{
// Start quotes in the middle of the word, include the whole word.
quotesStart = start;
}
int32 count = i - quotesStart + offset;
if (count > 0)
arguments.Add(StringAnsi(cmdLine.Substring(quotesStart, count)));
start = i + 1;
}
quotesStart = -1;
}
else
{
quotesStart = i;
}
}
}
const int32 count = length - start;
if (count > 0)
arguments.Add(StringAnsi(cmdLine.Substring(start, count)));
if (quotesStart >= 0)
return true; // Missing last closing quote
return false;
}

9
Source/Engine/Engine/CommandLine.h
View File

@@ -4,6 +4,7 @@
#include "Engine/Core/Types/String.h"
#include "Engine/Core/Types/Nullable.h"
#include "Engine/Core/Collections/Array.h"
/// <summary>
/// Command line options helper.
@@ -219,4 +220,12 @@ public:
/// <param name="cmdLine">The command line.</param>
/// <returns>True if failed, otherwise false.</returns>
static bool Parse(const Char* cmdLine);
/// <summary>
/// Parses the command line arguments string into string list of arguments.
/// </summary>
/// <param name="cmdLine">The command line.</param>
/// <param name="arguments">The parsed arguments</param>
/// <returns>True if failed, otherwise false.</returns>
static bool ParseArguments(const StringView& cmdLine, Array<StringAnsi>& arguments);
};

82
Source/Engine/Tests/TestCommandLine.cpp Normal file
View File

@@ -0,0 +1,82 @@
// Copyright (c) Wojciech Figat. All rights reserved.
#include "Engine/Engine/CommandLine.h"
#include "Engine/Core/Types/StringView.h"
#include "Engine/Core/Collections/Array.h"
#include <ThirdParty/catch2/catch.hpp>
TEST_CASE("CommandLine")
{
SECTION("Test Argument Parser")
{
SECTION("Single quoted word")
{
String input("\"word\"");
Array<StringAnsi> arguments;
CHECK(!CommandLine::ParseArguments(input, arguments));
CHECK(arguments.Count() == 1);
CHECK(arguments[0].Compare(StringAnsi("word")) == 0);
}
SECTION("Quotes at the beginning of the word")
{
String input("start\"word\"");
Array<StringAnsi> arguments;
CHECK(!CommandLine::ParseArguments(input, arguments));
CHECK(arguments.Count() == 1);
CHECK(arguments[0].Compare(StringAnsi("start\"word\"")) == 0);
}
SECTION("Quotes in the middle of the word")
{
String input("start\"word\"end");
Array<StringAnsi> arguments;
CHECK(!CommandLine::ParseArguments(input, arguments));
CHECK(arguments.Count() == 1);
CHECK(arguments[0].Compare(StringAnsi("start\"word\"end")) == 0);
}
SECTION("Quotes at the end of the word")
{
String input("\"word\"end");
Array<StringAnsi> arguments;
CHECK(!CommandLine::ParseArguments(input, arguments));
CHECK(arguments.Count() == 1);
CHECK(arguments[0].Compare(StringAnsi("\"word\"end")) == 0);
}
SECTION("Multiple words")
{
String input("The quick brown fox");
Array<StringAnsi> arguments;
CHECK(!CommandLine::ParseArguments(input, arguments));
CHECK(arguments.Count() == 4);
CHECK(arguments[0].Compare(StringAnsi("The")) == 0);
CHECK(arguments[1].Compare(StringAnsi("quick")) == 0);
CHECK(arguments[2].Compare(StringAnsi("brown")) == 0);
CHECK(arguments[3].Compare(StringAnsi("fox")) == 0);
}
SECTION("Multiple words with quotes")
{
String input("The \"quick brown fox\" jumps over the \"lazy\" dog");
Array<StringAnsi> arguments;
CHECK(!CommandLine::ParseArguments(input, arguments));
CHECK(arguments.Count() == 7);
CHECK(arguments[0].Compare(StringAnsi("The")) == 0);
CHECK(arguments[1].Compare(StringAnsi("quick brown fox")) == 0);
CHECK(arguments[2].Compare(StringAnsi("jumps")) == 0);
CHECK(arguments[3].Compare(StringAnsi("over")) == 0);
CHECK(arguments[4].Compare(StringAnsi("the")) == 0);
CHECK(arguments[5].Compare(StringAnsi("lazy")) == 0);
CHECK(arguments[6].Compare(StringAnsi("dog")) == 0);
}
SECTION("Flax.Build sample parameters")
{
String input("-log -mutex -workspace=\"C:\\path with spaces/to/FlaxEngine/\" -configuration=Debug -hotreload=\".HotReload.1\"");
Array<StringAnsi> arguments;
CHECK(!CommandLine::ParseArguments(input, arguments));
CHECK(arguments.Count() == 5);
CHECK(arguments[0].Compare(StringAnsi("-log")) == 0);
CHECK(arguments[1].Compare(StringAnsi("-mutex")) == 0);
CHECK(arguments[2].Compare(StringAnsi("-workspace=\"C:\\path with spaces/to/FlaxEngine/\"")) == 0);
CHECK(arguments[3].Compare(StringAnsi("-configuration=Debug")) == 0);
CHECK(arguments[4].Compare(StringAnsi("-hotreload=\".HotReload.1\"")) == 0);
}
}
}