Add negative numbers to lexer and printer

1 files changed, 5 insertions, 1 deletions

diff --git a/lexer.c b/lexer.c
index 5318924..76cffc8 100644
--- a/lexer.c
+++ b/lexer.c
@@ -85,10 +85,14 @@ lexline(Rune *line)
 			stmt->toks[stmt->ntoks].operator.dyadic = 1;
 			stmt->toks[stmt->ntoks].operator.code = p-primdyadopnames;
 			offset++;
-		}else if(isdigitrune(line[offset])){
+		}else if(isdigitrune(line[offset]) || (line[offset] == L'¯' && isdigitrune(line[offset+1]))){
 			char buf[64];
 			char *p = buf;
 			int floating = 0;
+			if(line[offset] == L'¯'){
+				*p++ = '-';
+				offset++;
+			}
 get_digits:
 			while(isdigitrune(line[offset]))
 				p += runetochar(p, &line[offset++]);