From 0647b65712e7aaf1de050393ea18194194088c68 Mon Sep 17 00:00:00 2001
From: Peter McGoron <code@mcgoron.com>
Date: Fri, 21 Jun 2024 22:53:50 -0400
Subject: [PATCH] fix float parsing

---
 main.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/main.c b/main.c
index 6ba589f..d817e15 100644
--- a/main.c
+++ b/main.c
@@ -156,11 +156,11 @@ static void tok_num(FILE *input, struct token *tok, int c)
 
 	uns_string_alloc(&gc, &tok->dat, 32);
 	do {
-		if (c == '.' || c == 'e' || c == 'E')
+		if (c == '.' || c == 'e' || c == 'E' || c == '-' || c == '+')
 			is_float = 1;
 		uns_string_append_char(&gc, &tok->dat, c);
 		c = getc(input);
-	} while (tonum(c) >= 0);
+	} while (tonum(c) >= 0 || c == '.' || c == 'e' || c == 'E' || c == '-' || c == '+');
 	ungetc(c, input);
 
 	if (is_float) {
@@ -242,10 +242,12 @@ static void tokenize(FILE *input, struct token *tok)
 		if (c == '.') {
 			c2 = getc(input);
 			/* Flatrate does not have floating point. */
-			if (part_of_ident(c2)) {
-				tok_ident(input, tok, c);
-			} else if (tonum(c2) >= 0) {
+			if (tonum(c2) >= 0) {
+				ungetc(c2, input);
 				tok_num(input, tok, c);
+			} else if (part_of_ident(c2)) {
+				ungetc(c2, input);
+				tok_ident(input, tok, c);
 			} else {
 				tok->typ = T_DOT;
 			}
@@ -281,6 +283,7 @@ static void alloc_of_type(struct uns_ctr *ctr, int typ)
 	case INTEGER: fields = 1; break;
 	case STRING: fields = 1; break;
 	case SYMBOL: fields = 1; break;
+	case FLOAT: fields = 1; break;
 	case EMPTY_LIST: fields = 0; break;
 	case LISP_NULL: fields = 0; break;
 	}
@@ -554,7 +557,7 @@ static void display(struct uns_ctr *ctr)
 		printf("%ld ", l);
 		return;
 	case FLOAT:
-		memcpy(&f, gc.record_get_ptr(ctr->p, 1), sizeof(float));
+		memcpy(&f, gc.record_get_ptr(ctr->p, 1), sizeof(double));
 		printf("%f ", f);
 		return;
 	case STRING: