Start working on parsing/scanning.

Too many changes to list them all individually.

1 files changed, 70 insertions, 0 deletions

diff --git a/lib/free_eval_context.c b/lib/free_eval_context.c
new file mode 100644
index 0000000..5af5220
--- /dev/null
+++ b/lib/free_eval_context.c
@@ -0,0 +1,70 @@
+/* Aplwc - A Programming Language With Constraints
+ *
+ * Copyright (C) 2026 Peter Mikkelsen <petermikkelsen10@gmail.com>
+ *
+ * This file is part of aplwc.
+ *
+ * Aplwc is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Aplwc is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with aplwc.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include <aplwc.h>
+#include "aplwc_internal.h"
+
+static void free_token(struct aplwc_eval_context *, struct aplwc_token *);
+static void free_ast(struct aplwc_eval_context *, struct aplwc_ast *);
+
+void
+aplwc_free_eval_context(struct aplwc_eval_context *context)
+{
+	context->aplwc->free(context->text);
+	for(size_t i = 0; i < context->n_tokens; i++)
+		free_token(context, context->tokens[i]);
+	free_ast(context, context->ast);
+	context->aplwc->free(context->tokens);
+	context->aplwc->free(context);
+}
+
+static void
+free_token(struct aplwc_eval_context *context, struct aplwc_token *tok)
+{
+	if(tok == NULL)
+		return;
+	
+	switch(tok->tag){
+	case APLWC_TOKEN_SYSCMD:
+		break;
+	case APLWC_TOKEN_SYSCMD_ARGS:
+		break;
+	case APLWC_TOKEN_ERROR:
+		break;
+	}
+
+	context->aplwc->free(tok);
+}
+
+static void
+free_ast(struct aplwc_eval_context *context, struct aplwc_ast *ast)
+{
+	if(ast == NULL)
+		return;
+	
+	switch(ast->tag){
+	case APLWC_AST_SYSCMD:
+		break;
+	case APLWC_AST_ERROR:
+		break;
+	}
+
+	context->aplwc->free(ast);
+}