X-Git-Url: https://deadsoftware.ru/gitweb?p=dsw-obn.git;a=blobdiff_plain;f=src%2Foberon.c;h=e8cbf428c12a7261b90dd057c8dc96381f465a3b;hp=8a84e1359dcd48f368f41cd945a76bb92a11b599;hb=a4fb30372d14e8415e2f9b8e647c20daeab59d7d;hpb=cbfeec1f4192adbd7adb494ef79447366f051c20

diff --git a/src/oberon.c b/src/oberon.c
index 8a84e13..e8cbf42 100644
--- a/src/oberon.c
+++ b/src/oberon.c
@@ -67,7 +67,9 @@ enum {
 	ELSE,
 	ELSIF,
 	WHILE,
-	DO
+	DO,
+	REPEAT,
+	UNTIL
 };
 
 // =======================================================================
@@ -410,6 +412,14 @@ oberon_read_ident(oberon_context_t * ctx)
 	{
 		ctx -> token = DO;
 	}
+	else if(strcmp(ident, "REPEAT") == 0)
+	{
+		ctx -> token = REPEAT;
+	}
+	else if(strcmp(ident, "UNTIL") == 0)
+	{
+		ctx -> token = UNTIL;
+	}
 }
 
 static void
@@ -2986,6 +2996,27 @@ oberon_statement(oberon_context_t * ctx)
 		oberon_assert_token(ctx, END);
 		oberon_generate_label(ctx, end);
 	}
+	else if(ctx -> token == REPEAT)
+	{
+		gen_label_t * begin;
+		oberon_expr_t * cond;
+
+		begin = oberon_generator_reserve_label(ctx);
+		oberon_generate_label(ctx, begin);
+		oberon_assert_token(ctx, REPEAT);
+
+		oberon_statement_seq(ctx);
+
+		oberon_assert_token(ctx, UNTIL);
+
+		cond = oberon_expr(ctx);
+		if(cond -> result -> class != OBERON_TYPE_BOOLEAN)
+		{
+			oberon_error(ctx, "condition must be boolean");
+		}
+
+		oberon_generate_branch(ctx, cond, true, begin);
+	}
 	else if(ctx -> token == RETURN)
 	{
 		oberon_assert_token(ctx, RETURN);