expressions.find_op(), can be used test whether we are in a loop (although that's inefficient)

2 files changed, 14 insertions, 0 deletions

diff --git a/expressions.cpp b/expressions.cpp
index d9c5a1e..ac06b43 100644
--- a/expressions.cpp
+++ b/expressions.cpp
@@ -163,6 +163,18 @@ Expressions::args(void)
 }
 
 int
+Expressions::find_op(Operator op)
+{
+	int items = operators.items();
+
+	for (int i = 1; i <= items; i++)
+		if (operators.peek(i) == op)
+			return i;
+
+	return 0;
+}
+
+int
 Expressions::first_op(void)
 {
 	int items = operators.items();
diff --git a/expressions.h b/expressions.h
index af501bb..5d2aa0c 100644
--- a/expressions.h
+++ b/expressions.h
@@ -170,6 +170,8 @@ public:
 
 	void discard_args(void);
 
+	int find_op(Operator op);
+
 private:
 	void calc(void);