X-Git-Url: https://harishankar.org/repos/?p=evpf.git;a=blobdiff_plain;f=src%2Fmain.rs;h=51ea94eb5e681337e5b6ecb386c8f81771fcb528;hp=c5dd52e9f7d2d1d814c53d6a6202926279078d49;hb=HEAD;hpb=a6a5b2946a176681ca6c0621b041a8bc3335a926

diff --git a/src/main.rs b/src/main.rs
index c5dd52e..51ea94e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -254,14 +254,16 @@ fn run_interactive_mode (match_num : &regex::Regex) {
 		if rl.save_history (&hist_file.unwrap()).is_err () {
 			eprintln! ("{}", SAVE_HISTORY_ERROR);
 		}
-	} 
+	} else {
+		eprintln! ("{}", &hist_file.unwrap_err());
+	}
 }
 
 fn main() {
 	// collect the command line arguments - if any 
 	let args : Vec<String> = env::args().collect ();
 	// regular expression to match a number 
-	let match_num = Regex::new (r"^\d+?\.*?\d*?$").unwrap ();
+	let match_num = Regex::new (r"^\-?\d+?\.*?\d*?$").unwrap ();
 	
 	if args.len () > 1 {
 	// if arguments are provided run in command line mode - i.e. print the