Add isblank().

diff --git a/src/lib/ctype.h b/src/lib/ctype.h
index d0baf4fef9673526ba8a5b79be73af8f58b9d099..71b432cb00942477f15fde9b6cf03fa897f2d203 100644 (file)
--- a/src/lib/ctype.h
+++ b/src/lib/ctype.h
@@ -13,6 +13,7 @@ static inline int isspace (int c) {
   return (c == ' ' || c == '\f' || c == '\n'
           || c == '\r' || c == '\t' || c == '\v');
 }
+static inline int isblank (int c) { return c == ' ' || c == '\t'; }
 static inline int isgraph (int c) { return c >= 33 && c < 127; }
 static inline int isprint (int c) { return c >= 32 && c < 127; }
 static inline int iscntrl (int c) { return c >= 0 && c < 32; }