Extracted StrUtils to a separate target and replaced remaining boost code

CBot/CMakeLists.txt

@@ -166,7 +166,9 @@ target_sources(CBot PRIVATE
 )
 
 target_include_directories(CBot PUBLIC src)
-target_link_libraries(CBot PRIVATE Boost::headers)
+target_link_libraries(CBot PRIVATE
+    Colobot-Common
+)
 
 if(COLOBOT_LINT_BUILD)
     add_fake_header_sources("src/CBot" CBot)

CBot/src/CBot/stdlib/StringFunctions.cpp

@@ -23,7 +23,7 @@
 
 #include "CBot/CBotUtils.h"
 
-#include <boost/algorithm/string.hpp>
+#include <common/stringutils.h>
 
 namespace CBot
 {
@@ -253,8 +253,7 @@ bool rStrUpper( CBotVar* pVar, CBotVar* pResult, int& ex, void* pUser )
     // but no second parameter
     if ( pVar->GetNext() != nullptr ){ ex = CBotErrOverParam ; return true; }
 
-
-    boost::to_upper(s);
+    s = StrUtils::ToUpper(s);
 
     // puts the value on the stack
     pResult->SetValString( s );
@@ -276,8 +275,7 @@ bool rStrLower( CBotVar* pVar, CBotVar* pResult, int& ex, void* pUser )
     // but no second parameter
     if ( pVar->GetNext() != nullptr ){ ex = CBotErrOverParam ; return true; }
 
-
-    boost::to_lower(s);
+    s = StrUtils::ToLower(s);
 
     // puts the value on the stack
     pResult->SetValString( s );

CMakeLists.txt

@@ -443,6 +443,9 @@ else()
     set(COLOBOT_I18N_DIR ${COLOBOT_INSTALL_I18N_DIR})
 endif()
 
+# Subdirectory with common implementation
+add_subdirectory(colobot-common)
+
 # Add CBot
 add_subdirectory(CBot)
 

colobot-common/CMakeLists.txt

@@ -0,0 +1,10 @@
+add_library(Colobot-Common STATIC)
+
+target_sources(Colobot-Common PRIVATE
+    src/common/stringutils.cpp
+    src/common/stringutils.h
+)
+
+target_include_directories(Colobot-Common PUBLIC
+    $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>
+)

src/CMakeLists.txt

@@ -89,8 +89,6 @@ add_library(colobotbase STATIC
     common/settings.cpp
     common/settings.h
     common/singleton.h
-    common/stringutils.cpp
-    common/stringutils.h
     common/timeutils.cpp
     common/timeutils.h
     common/thread/worker_thread.h
@@ -495,6 +493,7 @@ target_include_directories(colobotbase PUBLIC
 # Main libraries
 target_link_libraries(colobotbase PUBLIC
     CBot
+    Colobot-Common
     localename
     SDL2::Core
     SDL2::Image