1 files changed, 14 insertions, 0 deletions
diff --git a/awklib/eg/lib/isnumeric.awk b/awklib/eg/lib/isnumeric.awk
new file mode 100644
index 00000000..6309e76a
--- /dev/null
+++ b/awklib/eg/lib/isnumeric.awk
@@ -0,0 +1,14 @@
+# isnumeric --- check whether a value is numeric
+
+function isnumeric(x,  f)
+{
+	switch (typeof(x)) {
+	case "strnum":
+	case "number":
+		return 1
+	case "string":
+		return (split(x, f, " ") == 1) && (typeof(f[1]) == "strnum")
+	default:
+		return 0
+	}
+}