diff --git a/Cargo.lock b/Cargo.lock
index c34dd9d..eba15e3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,5 +1,13 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+[[package]]
+name = "aho-corasick"
+version = "0.7.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "arrayref"
 version = "0.3.6"
@@ -112,10 +120,11 @@ name = "lang-evolve-core"
 version = "0.1.0"
 dependencies = [
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex 1.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.105 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 1.0.48 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 1.0.50 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_yaml 0.7.5 (registry+https://github.com/rust-lang/crates.io-index)",
- "simplelog 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "simplelog 0.7.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -148,6 +157,11 @@ dependencies = [
  "cfg-if 0.1.10 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "memchr"
+version = "2.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "num-integer"
 version = "0.1.42"
@@ -196,6 +210,22 @@ dependencies = [
  "rust-argon2 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "regex"
+version = "1.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "aho-corasick 0.7.10 (registry+https://github.com/rust-lang/crates.io-index)",
+ "memchr 2.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "regex-syntax 0.6.17 (registry+https://github.com/rust-lang/crates.io-index)",
+ "thread_local 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.6.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "rust-argon2"
 version = "0.7.0"
@@ -232,7 +262,7 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.48"
+version = "1.0.50"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "itoa 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -253,7 +283,7 @@ dependencies = [
 
 [[package]]
 name = "simplelog"
-version = "0.7.4"
+version = "0.7.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "chrono 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -280,6 +310,14 @@ dependencies = [
  "winapi 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "thread_local"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+dependencies = [
+ "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "time"
 version = "0.1.42"
@@ -328,6 +366,7 @@ dependencies = [
 ]
 
 [metadata]
+"checksum aho-corasick 0.7.10 (registry+https://github.com/rust-lang/crates.io-index)" = "8716408b8bc624ed7f65d223ddb9ac2d044c0547b6fa4b0d554f3a9540496ada"
 "checksum arrayref 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "a4c527152e37cf757a3f78aae5a06fbeefdb07ccc535c980a3208ee3060dd544"
 "checksum arrayvec 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cff77d8686867eceff3105329d4698d96c2391c176d5d03adc90c7389162b5b8"
 "checksum autocfg 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "f8aac770f1885fd7e387acedd76065302551364496e46b3dd00860b2f8359b9d"
@@ -346,21 +385,25 @@ dependencies = [
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diff --git a/lang-evolve-core b/lang-evolve-core
index 8642067..6be0f7e 160000
--- a/lang-evolve-core
+++ b/lang-evolve-core
@@ -1 +1 @@
-Subproject commit 8642067eb389aeb4d134a38b3344f1786687e8b6
+Subproject commit 6be0f7e8f6e512cdd77f2a6f76654b1dd18e4874