Added utility function to convert strings to PascalCase, now also used by Arduino Library targets to support case-insensitive names given by the user.

Author: MrPointer

cmake/Platform/Targets/ArduinoLibraryTarget.cmake

@@ -97,17 +97,19 @@ endfunction()
 #=============================================================================#
 function(find_arduino_library _target_name _library_name _board_id)
 
-    set(library_path "${ARDUINO_SDK_LIBRARIES_PATH}/${_library_name}")
+    convert_string_to_pascal_case(${_library_name} arduino_compliant_library_name)
+    message("Name: ${arduino_compliant_library_name}")
+    set(library_path "${ARDUINO_SDK_LIBRARIES_PATH}/${arduino_compliant_library_name}")
     set(library_properties_path "${library_path}/library.properties")
 
     if (NOT EXISTS "${library_properties_path}")
-        message(SEND_ERROR "Couldn't find library named ${_library_name}")
+        message(SEND_ERROR "Couldn't find library named ${arduino_compliant_library_name}")
     else () # Library is found
         _get_library_architecture("${library_properties_path}" lib_arch)
         if (lib_arch)
             if ("${lib_arch}" MATCHES "UNSUPPORTED")
                 string(CONCAT error_message
-                        "${_library_name} "
+                        "${arduino_compliant_library_name} "
                         "library isn't supported on the platform's architecture "
                         "${ARDUINO_CMAKE_PLATFORM_ARCHITECTURE}")
                 message(SEND_ERROR ${error_message})
@@ -125,7 +127,8 @@ function(find_arduino_library _target_name _library_name _board_id)
 
             if (NOT library_sources)
                 set(error_message
-                        "${_library_name} doesn't have any source file under the 'src' directory")
+                        "${arduino_compliant_library_name} doesn't have any source files \
+                         under the 'src' directory")
                 message(SEND_ERROR "${error_message}")
             else ()
                 set(sources ${library_headers} ${library_sources})

cmake/Platform/Utilities/StringUtils.cmake

@@ -71,8 +71,34 @@ endfunction()
 # Extracts a name symbol without possible file extension (marked usually by a dot ('.').
 #       _input_string - String containing name symbol and possibly file extension.
 #       _return_var - Name of a CMake variable that will hold the extraction result.
+#       Returns - String containing input name without possible file extension.
 #=============================================================================#
 function(get_name_without_file_extension _input_string _return_var)
+
     string(REGEX MATCH "${ARDUINO_CMAKE_NAME_WE_REGEX_PATTERN}" match "${_input_string}")
     set(${_return_var} ${CMAKE_MATCH_1} PARENT_SCOPE)
+
+endfunction()
+
+#=============================================================================#
+# Converts a given string a PascalCase string, converting 1st letter to upper and remaining to lower.
+#       _input_string - String to convert.
+#       _return_var - Name of a CMake variable that will hold the extraction result.
+#       Returns - PascalCase converted string.
+#=============================================================================#
+function(convert_string_to_pascal_case _input_string _return_var)
+
+    # Convert 1st letter to upper case
+    string(SUBSTRING ${_input_string} 0 1 first_letter)
+    string(TOUPPER ${first_letter} first_letter_upper)
+
+    # Convert remaining letters to lower case
+    string(SUBSTRING ${_input_string} 1 -1 remaining_letters)
+    string(TOLOWER ${remaining_letters} remaining_letters_lower)
+
+    # Combine first letter with remaining letters
+    string(APPEND combined_string ${first_letter_upper} ${remaining_letters_lower})
+
+    set(${_return_var} ${combined_string} PARENT_SCOPE)
+
 endfunction()

examples/arduino-library/CMakeLists.txt

@@ -6,7 +6,7 @@ get_board_id(board_id nano atmega328)
 add_arduino_executable(Arduino_Library ${board_id} test.cpp)
 
 # Find and link the Stepper library
-find_arduino_library(stepper_lib Stepper ${board_id})
+find_arduino_library(stepper_lib stePpEr ${board_id}) # Library name is case-insensitive to the user
 link_arduino_library(Arduino_Library stepper_lib ${board_id})
 
 # Find and link the Servo library - Custom implementation for many architectures,