now version controlled.

1 files changed, 28 insertions, 0 deletions

diff --git a/battfmt.c b/battfmt.c
new file mode 100644
index 0000000..14e0832
--- /dev/null
+++ b/battfmt.c
@@ -0,0 +1,28 @@
+#include <u.h>
+#include <libc.h>
+#include <ctype.h>
+
+void
+battfmt(char *buf, long buflen)
+{
+	char *s;
+
+	for(s = buf; (s-buf) < buflen; s++)
+		if(!isdigit(*s)){
+			for(;(s-buf) < buflen; s++)
+				*s = '\0';
+			break;
+		}
+}
+
+void
+main(void)
+{
+	char str[] = "30 m";
+
+	battfmt(str, 4);
+
+	print("%s\n", str);
+
+	exits("done");
+}