cmake find module for scintilla

cmake/FindLexilla.cmake

@@ -0,0 +1,76 @@
+# FindLexilla.cmake
+#
+# This module tries to find Lexilla, and if not found, fetches and builds it using FetchContent.
+# It also assumes Scintilla is available (either found or fetched).
+#
+# Once done this will define
+#  Lexilla_FOUND        - True if Lexilla was found
+#  Lexilla_LIBRARIES    - List of libraries to link against (e.g., lexilla)
+#  Lexilla_INCLUDE_DIRS - The Lexilla include directories
+
+# Check if Lexilla is already found or if we are in a NO_MODULE situation
+if(Lexilla_FOUND)
+    return()
+endif()
+
+cmake_minimum_required(VERSION 3.16) # FetchContent requires CMake 3.14+, using 3.16 for consistency
+
+include(FetchContent)
+
+FetchContent_Declare(
+    lexilla
+    URL https://www.scintilla.org/lexilla546.zip
+    URL_HASH SHA256=079857fe786a99d69452a4cbd75b3d7bb5826bf9543bfef2a79b82b599200bd0  # Placeholder, please update with actual SHA256
+)
+
+FetchContent_MakeAvailable(lexilla)
+
+# Lexilla needs Scintilla headers, so ensure Scintilla is found/fetched
+find_package(Scintilla REQUIRED)
+
+add_library(lexilla SHARED)
+
+# Set C++ standard for this target
+target_compile_features(lexilla PUBLIC cxx_std_17)
+
+file(GLOB_RECURSE SRCS CONFIGURE_DEPENDS
+    # main library binding
+    "${lexilla_SOURCE_DIR}/include/Lexilla.h"
+    "${lexilla_SOURCE_DIR}/src/Lexilla.cxx"
+    # lexlib
+    "${lexilla_SOURCE_DIR}/lexlib/*.h"
+    "${lexilla_SOURCE_DIR}/lexlib/*.cxx"
+    # lexers
+    "${lexilla_SOURCE_DIR}/lexers/Lex*.cxx"
+)
+
+target_sources(lexilla
+PRIVATE
+    ${SRCS}
+)
+
+target_include_directories(lexilla
+PUBLIC
+    "${lexilla_SOURCE_DIR}/include"
+    "${lexilla_SOURCE_DIR}/lexlib"
+)
+
+target_link_libraries(lexilla PUBLIC Scintilla::Scintilla)
+
+# Set variables for find_package
+set(Lexilla_FOUND TRUE)
+set(Lexilla_INCLUDE_DIRS
+    "${lexilla_SOURCE_DIR}/include"
+    "${lexilla_SOURCE_DIR}/lexlib"
+)
+
+# Create an ALIAS target for modern CMake consumption
+if(NOT TARGET Lexilla::Lexilla)
+    add_library(Lexilla::Lexilla ALIAS lexilla)
+endif()
+
+# Set variables for find_package (for backward compatibility)
+set(Lexilla_LIBRARIES Lexilla::Lexilla) # Point to the ALIAS target
+
+# Mark as advanced so it doesn't show up in GUI by default
+mark_as_advanced(Lexilla_FOUND Lexilla_LIBRARIES Lexilla_INCLUDE_DIRS)