1 files changed, 43 insertions, 0 deletions
diff --git a/42sh/src/helper.c b/42sh/src/helper.c
new file mode 100644
index 0000000..7f936fc
--- /dev/null
+++ b/42sh/src/helper.c
@@ -0,0 +1,43 @@
+#include "helper.h"
+
+int _process_input(struct string *input)
+{
+    struct lexer *lexer = lexer_new(input);
+    if (!lexer)
+    {
+        errx(BAD_GRAMMAR, "main: unable to create lexer.");
+    }
+
+    enum parser_state status = OK;
+
+    struct ast *ast = NULL;
+    int r = SHELL_TRUE;
+    do
+    {
+        ast_free(ast);
+        ast = parse(lexer, &status);
+
+        if (status == ERROR)
+        {
+            errx(BAD_GRAMMAR, "main: parse failed.");
+        }
+
+        if (env_get("PRETTY_PRINT") != NULL)
+        {
+            pretty_print(ast);
+        }
+        if (ast)
+        {
+            r = eval_ast(ast);
+        }
+    } while (ast != NULL && status != ERROR);
+    if (status == ERROR)
+    {
+        ast_free(ast);
+    }
+
+    string_free(lexer->input);
+    lexer_free(lexer);
+
+    return r;
+}