Add language binding: tree-sitter-zig

.gitmodules

@@ -139,6 +139,9 @@
 [submodule "tree-sitter-yaml"]
 	path = tree-sitter-yaml
 	url = https://github.com/ikatyang/tree-sitter-yaml.git
+[submodule "tree-sitter-zig"]
+	path = tree-sitter-zig
+	url = https://github.com/maxxnino/tree-sitter-zig
 [submodule "tree-sitter-pascal"]
 	path = tree-sitter-pascal
 	url = https://github.com/Isopod/tree-sitter-pascal.git

lib/ch_usi_si_seart_treesitter.h

@@ -392,6 +392,9 @@ TSLanguage* tree_sitter_typescript();
 #ifdef TS_LANGUAGE_YAML
 TSLanguage* tree_sitter_yaml();
 #endif
+#ifdef TS_LANGUAGE_ZIG
+TSLanguage* tree_sitter_zig();
+#endif
 
 #ifdef __cplusplus
 }

lib/ch_usi_si_seart_treesitter_Language.cc

@@ -427,6 +427,15 @@ JNIEXPORT jlong JNICALL Java_ch_usi_si_seart_treesitter_Language_yaml(
 #endif
 }
 
+JNIEXPORT jlong JNICALL Java_ch_usi_si_seart_treesitter_Language_zig(
+  JNIEnv* env, jclass self) {
+#ifdef TS_LANGUAGE_ZIG
+  return (jlong)tree_sitter_zig();
+#else
+  return (jlong)ch_usi_si_seart_treesitter_Language_INVALID;
+#endif
+}
+
 JNIEXPORT jint JNICALL Java_ch_usi_si_seart_treesitter_Language_version(
   JNIEnv* env, jclass self, jlong id) {
   return (jint)ts_language_version((const TSLanguage *)id);

src/main/java/ch/usi/si/seart/treesitter/Language.java

@@ -372,7 +372,14 @@ public enum Language {
      *
      * @see <a href="https://github.com/ikatyang/tree-sitter-yaml">tree-sitter-yaml</a>
      */
-    YAML(yaml(), "yaml", "yml");
+    YAML(yaml(), "yaml", "yml"),
+
+    /**
+     * Zig programming language.
+     *
+     * @see <a href="https://github.com/maxxnino/tree-sitter-zig">tree-sitter-zig</a>
+     */
+    ZIG(zig(), "zig");
 
     private static native long ada();
     private static native long bash();
@@ -421,6 +428,7 @@ public enum Language {
     private static native long tsx();
     private static native long typescript();
     private static native long yaml();
+    private static native long zig();
 
     /**
      * Validates an enum value to ensure it is not null and has a valid (nonzero) identifier.
@@ -563,6 +571,7 @@ public String toString() {
             case SCHEME:
             case SVELTE:
             case SWIFT:
+            case ZIG:
                 return capitalize(name());
             /*
              * Space-Delimited Capital Case