From 99bf50cd4e3a6f0984baf37bc7ffcbb3284a86cc Mon Sep 17 00:00:00 2001
From: Vladislav Belov <vladislavbelovdev@gmail.com>
Date: Thu, 16 Oct 2025 09:17:05 +0200
Subject: [PATCH] Reduces boost usage for strings

---
 source/graphics/ColladaManager.cpp |  3 +--
 source/i18n/L10n.cpp               |  3 +--
 source/ps/ArchiveBuilder.cpp       | 13 +++++--------
 source/ps/ConfigDB.cpp             |  5 ++---
 source/ps/ModIo.cpp                |  5 ++---
 5 files changed, 11 insertions(+), 18 deletions(-)

diff --git a/source/graphics/ColladaManager.cpp b/source/graphics/ColladaManager.cpp
index e4788dd07b..7854e20c27 100644
--- a/source/graphics/ColladaManager.cpp
+++ b/source/graphics/ColladaManager.cpp
@@ -35,7 +35,6 @@
 #include "ps/Filesystem.h"
 
 #include <algorithm>
-#include <boost/algorithm/string/predicate.hpp>
 #include <cstddef>
 #include <string>
 #include <vector>
@@ -93,7 +92,7 @@ public:
 	Status ReloadChangedFile(const VfsPath& path)
 	{
 		// Ignore files that aren't in the right path
-		if (!boost::algorithm::starts_with(path.string(), L"art/skeletons/"))
+		if (!path.string().starts_with(L"art/skeletons/"))
 			return INFO::OK;
 
 		if (path.Extension() != L".xml")
diff --git a/source/i18n/L10n.cpp b/source/i18n/L10n.cpp
index 2032459a6d..af2313ee47 100644
--- a/source/i18n/L10n.cpp
+++ b/source/i18n/L10n.cpp
@@ -39,7 +39,6 @@
 #include "scriptinterface/ScriptInterface.h"
 
 #include <algorithm>
-#include <boost/algorithm/string/predicate.hpp>
 #include <cstdint>
 #include <cstring>
 #include <exception>
@@ -518,7 +517,7 @@ VfsPath L10n::LocalizePath(const VfsPath& sourcePath) const
 
 Status L10n::ReloadChangedFile(const VfsPath& path)
 {
-	if (!boost::algorithm::starts_with(path.string(), L"l10n/"))
+	if (!path.string().starts_with(L"l10n/"))
 		return INFO::OK;
 
 	if (path.Extension() != L".po")
diff --git a/source/ps/ArchiveBuilder.cpp b/source/ps/ArchiveBuilder.cpp
index 978eff2ff8..138ea59b25 100644
--- a/source/ps/ArchiveBuilder.cpp
+++ b/source/ps/ArchiveBuilder.cpp
@@ -32,7 +32,6 @@
 #include "ps/XML/Xeromyces.h"
 #include "renderer/backend/dummy/Device.h"
 
-#include <boost/algorithm/string/predicate.hpp>
 #include <string>
 
 CArchiveBuilder::CArchiveBuilder(const OsPath& mod, const OsPath& tempdir) :
@@ -98,13 +97,11 @@ void CArchiveBuilder::Build(const OsPath& archive, bool compress)
 		ENSURE(ret == INFO::OK);
 
 		// Compress textures and store the new cached version instead of the original
-		if ((boost::algorithm::starts_with(path.string(), L"art/textures/") ||
-			 boost::algorithm::starts_with(path.string(), L"fonts/")
-			) &&
+		if ((path.string().starts_with(L"art/textures/") || path.string().starts_with(L"fonts/")) &&
 			tex_is_known_extension(path) &&
 			// Skip some subdirectories where the engine doesn't use CTextureManager yet:
-			!boost::algorithm::starts_with(path.string(), L"art/textures/cursors/") &&
-			!boost::algorithm::starts_with(path.string(), L"art/textures/terrain/alphamaps/")
+			!path.string().starts_with(L"art/textures/cursors/") &&
+			!path.string().starts_with(L"art/textures/terrain/alphamaps/")
 		)
 		{
 			VfsPath cachedPath;
@@ -128,9 +125,9 @@ void CArchiveBuilder::Build(const OsPath& archive, bool compress)
 		{
 			CColladaManager::FileType type;
 
-			if (boost::algorithm::starts_with(path.string(), L"art/meshes/"))
+			if (path.string().starts_with(L"art/meshes/"))
 				type = CColladaManager::PMD;
-			else if (boost::algorithm::starts_with(path.string(), L"art/animation/"))
+			else if (path.string().starts_with(L"art/animation/"))
 				type = CColladaManager::PSA;
 			else
 			{
diff --git a/source/ps/ConfigDB.cpp b/source/ps/ConfigDB.cpp
index 95ac817358..512cf42ed7 100644
--- a/source/ps/ConfigDB.cpp
+++ b/source/ps/ConfigDB.cpp
@@ -33,7 +33,6 @@
 #include "ps/Profiler2.h"
 
 #include <algorithm>
-#include <boost/algorithm/string/predicate.hpp>
 #include <cstddef>
 #include <mutex>
 #include <unordered_set>
@@ -239,11 +238,11 @@ std::map<CStr, CConfigValueSet> CConfigDB::GetValuesWithPrefix(EConfigNamespace
 	// values in earlier namespaces
 	for (int search_ns = 0; search_ns <= ns; ++search_ns)
 		for (const std::pair<const CStr, CConfigValueSet>& p : m_Map[search_ns])
-			if (boost::algorithm::starts_with(p.first, prefix))
+			if (p.first.starts_with(prefix))
 				ret[p.first] = p.second;
 
 	for (const std::pair<const CStr, CConfigValueSet>& p : m_Map[CFG_COMMAND])
-		if (boost::algorithm::starts_with(p.first, prefix))
+		if (p.first.starts_with(prefix))
 			ret[p.first] = p.second;
 
 	return ret;
diff --git a/source/ps/ModIo.cpp b/source/ps/ModIo.cpp
index f372c6af4e..950727bc8e 100644
--- a/source/ps/ModIo.cpp
+++ b/source/ps/ModIo.cpp
@@ -46,7 +46,6 @@
 
 #include <algorithm>
 #include <boost/algorithm/string/classification.hpp>
-#include <boost/algorithm/string/predicate.hpp>
 #include <boost/algorithm/string/split.hpp>
 #include <cstdio>
 #include <cstring>
@@ -826,9 +825,9 @@ bool ModIo::ParseSignature(const std::vector<std::string>& minisigs, SigStruct&
 		// because that is easy.
 		const std::string untrusted_comment_prefix = "untrusted comment: ";
 		const std::string trusted_comment_prefix = "trusted comment: ";
-		if (!boost::algorithm::starts_with(sig_lines[0], untrusted_comment_prefix))
+		if (!sig_lines[0].starts_with(untrusted_comment_prefix))
 			FAIL("Malformed untrusted comment.");
-		if (!boost::algorithm::starts_with(sig_lines[2], trusted_comment_prefix))
+		if (!sig_lines[2].starts_with(trusted_comment_prefix))
 			FAIL("Malformed trusted comment.");
 
 		// We only _really_ care about the second line which is the signature of the file (b64-encoded)