From a545cbab33e7ecc9ea36ad479fc32ec29a106e99 Mon Sep 17 00:00:00 2001
From: Daniel Weipert <git@mail.dweipert.de>
Date: Mon, 8 Jul 2024 16:23:17 +0200
Subject: loop

---
 henshin        | 20 ++++++++++++++++++++
 test/test.test | 11 +++++++++++
 2 files changed, 31 insertions(+)

diff --git a/henshin b/henshin
index d8a1de8..d393f23 100755
--- a/henshin
+++ b/henshin
@@ -57,6 +57,8 @@ reserved = {
 
     "and": "AND",
     "or": "OR",
+
+    "for": "LOOP",
 }
 
 tokens = [
@@ -76,6 +78,7 @@ tokens = [
     "BRACE_RIGHT",
     "BRACKET_LEFT",
     "BRACKET_RIGHT",
+    "PIPE",
 
 
     "NAMESPACE_ACCESSOR",
@@ -110,6 +113,7 @@ t_BRACKET_LEFT = r'\['
 t_BRACKET_RIGHT = r'\]'
 t_BRACE_LEFT = r'{'
 t_BRACE_RIGHT = r'}'
+t_PIPE = r'\|'
 
 
 t_NAMESPACE_ACCESSOR = r'\.'
@@ -258,6 +262,13 @@ class AstNodeFunctionCallParameter(AstNode):
         self.name = name
         self.value = value
 
+class AstNodeLoop(AstNode):
+    def __init__(self, iteratee, key_id, value_id, body):
+        self.iteratee = iteratee
+        self.key_id = key_id
+        self.value_id = value_id
+        self.body = body
+
 
 
 precedence = (
@@ -308,6 +319,7 @@ def p_statement(p):
                  | variable_reassignment_statement
                  | function_declaration
                  | function_call
+                 | loop
                  | return_statement'''
 
     p[0] = p[1]
@@ -373,6 +385,14 @@ def p_function_call_parameter(p):
 
 
 
+def p_loop(p):
+    '''loop : LOOP PARENTHESIS_LEFT expression PARENTHESIS_RIGHT PIPE identifier COMMA identifier PIPE BRACE_LEFT statements BRACE_RIGHT'''
+
+    p[0] = AstNodeLoop(p[3], p[6], p[8], p[11])
+
+
+
+
 def p_variable_declaration_statement(p):
     '''variable_declaration_statement : variable_declarator IDENTIFIER COLON variable_type ASSIGN expression SEMICOLON'''
 
diff --git a/test/test.test b/test/test.test
index af1bf76..24059ca 100644
--- a/test/test.test
+++ b/test/test.test
@@ -23,3 +23,14 @@ const map: [string][string or integer] = [
   "third": "3",
   "fourth": 4,
 ];
+
+for (array) |index, value| {
+  ply = value;
+}
+
+for (map) |key, value| {
+  ply = key;
+}
+
+std.str.format('cool %s', string)
+  |> print($);
-- 
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