Add Oniguruma regular expression library

ReadMe.org

@@ -91,6 +91,7 @@ Here are the known compatibility results, where blank means untested/unknown:
 
 | Module                      | Linux x86_64 | Linux Arm v7 | Windows x64 | macOS |
 |-----------------------------+--------------+--------------+-------------+-------|
+| Allocator.cake              | Yes          | Yes          | Yes         | Yes   |
 | Aubio.cake                  | Yes          | Probably     |             |       |
 | AutoTest.cake               | Yes          | Yes          | Yes         | Yes   |
 | Config_ZigCompile.cake      | Yes          |              |             |       |
@@ -108,6 +109,7 @@ Here are the known compatibility results, where blank means untested/unknown:
 | Math.cake                   | Yes          | Yes          | Yes         | Yes   |
 | Ogre.cake                   | Yes          |              |             |       |
 | OgreInitialize.cake         | Yes          |              |             |       |
+| Oniguruma.cake              | Yes          |              |             |       |
 | OpenGL.cake                 | Yes          | No[1]        | Yes         |       |
 | ProfilerAutoInstrument.cake | Yes          | Yes          | Yes         | Yes   |
 | ProfilerNull.cake           | Yes          | Yes          | Yes         | Yes   |
@@ -136,6 +138,7 @@ The following modules will automatically download their dependencies if missing:
 - Math.cake
 - Ogre.cake
 - OgreInitialize.cake
+- Oniguruma.cake
 - OpenGL.cake
 - Raylib.cake
 - SDL.cake

src/Oniguruma.cake

@@ -0,0 +1,80 @@
+;; Oniguruma: a regular expression engine with multiple encodings supported
+(add-cakelisp-search-directory "Dependencies/cakelisp/runtime")
+(import "CHelpers.cake" "BuildTools.cake" "Dependencies.cake")
+
+(export-and-evaluate
+ (add-c-search-directory-module "cakelisp_cache/OnigurumaInstallDir/include")
+ (c-import "oniguruma.h"))
+
+(comptime-cond
+ ('auto-test
+  (defun test--oniguruma (&return int)
+    (var encodings ([] OnigEncoding) (array ONIG_ENCODING_UTF8))
+    (onig_initialize encodings (array-size encodings))
+    (onig_end)
+    (return 0))))
+
+(defun-comptime build-oniguruma (manager (& ModuleManager) module (* Module) &return bool)
+  ;; Already built?
+  ;; We could enhance this by checking for modifications, but that's pretty rare
+  (when (and (fileExists "cakelisp_cache/OnigurumaInstallDir/lib/libonig.a"))
+    (return true))
+
+  (Log "Oniguruma: Building via Configure and Make\n")
+
+  (var working-dir (* (const char)) "cakelisp_cache/OnigurumaBuildDir")
+  (makeDirectory working-dir)
+
+  (var output-dir (* (const char)) "cakelisp_cache/OnigurumaInstallDir")
+  (makeDirectory output-dir)
+
+  (var configure-output-prefix ([] MAX_PATH_LENGTH char) (array 0))
+  (scope ;; Output must be absolute directory
+   (var absolute-output-path (* (const char))
+     (makeAbsolutePath_Allocated null output-dir))
+
+   (unless absolute-output-path
+     (Logf "error: failed to make Oniguruma output directory '%s'\n" output-dir)
+     (return false))
+
+   (PrintfBuffer configure-output-prefix "--prefix=%s" absolute-output-path)
+   (free (type-cast absolute-output-path (* void))))
+
+  (run-process-sequential-or
+      ("autoreconf" "-vfi" :in-directory "Dependencies/oniguruma")
+    (Log
+     "failed at Oniguruma autoreconf step. This requires autoconf to execute.")
+    (return false))
+
+  (run-process-sequential-or
+      ("sh" "../../Dependencies/oniguruma/configure" configure-output-prefix :in-directory working-dir)
+    (Log
+     "failed at Oniguruma configure step. This requires a sh/bash-style shell to execute.")
+    (return false))
+
+  (run-process-sequential-or
+      ("make" "--jobs=8" :in-directory working-dir)
+    (Log "failed at Oniguruma make. This tool requires Makefile support.")
+    (return false))
+
+  (run-process-sequential-or
+      ("make" "install" :in-directory working-dir)
+    (Log
+     "failed at Oniguruma make install. Was there a configuration issue with --prefix?")
+    (return false))
+
+  ;; One final to check to ensure everything's good to go
+  (unless (fileExists "cakelisp_cache/OnigurumaInstallDir/lib/libonig.a")
+    (Log
+     "error: Raylib build sequence completed, but files are not where expected. Is there an issue
+ with the configuration?\nFile expected:\n\tcakelisp_cache/OnigurumaInstallDir/lib/libonig.a\n")
+    (return false))
+  (return true))
+(add-compile-time-hook-module pre-build build-oniguruma)
+
+(add-static-link-objects "cakelisp_cache/OnigurumaInstallDir/lib/libonig.a")
+
+(add-dependency-git-submodule
+ clone-oniguruma
+ "https://github.com/kkos/oniguruma.git"
+ "Dependencies/oniguruma")

test/src/GameLibTests.cake

@@ -54,7 +54,8 @@
              "../src/AutoTest.cake" "../src/Introspection.cake"
              "../src/Dictionary.cake" "../src/DynamicArray.cake"
              "../src/TaskSystem.cake" "../src/Image.cake" "../src/DataBundle.cake"
-             "../src/TinyCCompiler.cake" "../src/FreeType.cake" "../src/Allocator.cake")))
+             "../src/TinyCCompiler.cake" "../src/FreeType.cake" "../src/Allocator.cake"
+             "../src/Oniguruma.cake")))
 
     (test-opengl-only
      (gamelib-run-test