From 8b9b7f669ff86f8a4011dc5f6a7d3cf6e6f4302b Mon Sep 17 00:00:00 2001
From: falsycat <me@falsy.cat>
Date: Sat, 19 Nov 2022 17:09:46 +0900
Subject: [PATCH] add new thirdparty lib, ExprTk

---
 CMakeLists.txt            |  2 ++
 thirdparty/CMakeLists.txt | 16 +++++++++++++++-
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5bf311e..be53fdf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -162,11 +162,13 @@ target_sources(nf7
     file/system_nfile.cc
     file/system_node.cc
     file/value_curve.cc
+    file/value_expr.cc
     file/value_imm.cc
     file/value_plot.cc
 )
 target_link_libraries(nf7
   PRIVATE
+    exprtk
     freetype
     glew
     glfw
diff --git a/thirdparty/CMakeLists.txt b/thirdparty/CMakeLists.txt
index ef655e3..43dda72 100644
--- a/thirdparty/CMakeLists.txt
+++ b/thirdparty/CMakeLists.txt
@@ -10,8 +10,22 @@ else()
 endif()
 
 
+# ---- ExprTk ----
+# repository: https://github.com/ArashPartow/exprtk
+# license   : MIT
+
+FetchContent_Declare(
+  exprtk
+  URL "https://github.com/ArashPartow/exprtk/archive/refs/tags/0.0.1.zip"
+)
+FetchContent_Populate(exprtk)
+
+add_library(exprtk INTERFACE)
+target_include_directories(exprtk SYSTEM INTERFACE "${exprtk_SOURCE_DIR}")
+
+
 # ---- FreeType ----
-# repository:
+# repository: https://gitlab.freedesktop.org/freetype/freetype
 # license   : The FreeType License
 
 FetchContent_Declare(