text-util: add text_range_contains

efjimm · Jul 28, 2015 · e15edaa · e15edaa
1 parent b1302b2
commit e15edaa
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Showing 2 changed files with 7 additions and 1 deletion.
diff --git a/text-util.c b/text-util.c
@@ -36,3 +36,7 @@ bool text_range_overlap(Filerange *r1, Filerange *r2) {
 		return false;
 	return r1->start <= r2->end && r2->start <= r1->end;
 }
+
+bool text_range_contains(Filerange *r, size_t pos) {
+	return text_range_valid(r) && r->start <= pos && pos <= r->end;
+}
diff --git a/text-util.h b/text-util.h
@@ -17,5 +17,7 @@ Filerange text_range_union(Filerange*, Filerange*);
 Filerange text_range_new(size_t a, size_t b);
 /* test whether two ranges overlap */
 bool text_range_overlap(Filerange*, Filerange*);
+/* test whether a given position is within a certain range */
+bool text_range_contains(Filerange*, size_t pos);
 
-#endif
+#endif