1 files changed, 10 insertions(+), 3 deletions(-)

M qbe/lex.ha

@@ 205,7 205,10 @@ fn float(in: *lexer) (f64 | void | error) = {
 				break;
 			};
 		case floatstate::INFINITY, floatstate::NAN =>
-			if (!ascii::isalpha(rn)) break;
+			if (!ascii::isalpha(rn)) {
+				unget(in, rn);
+				break;
+			};
 		};
 
 		strio::appendrune(&buf, rn)?;


@@ 213,8 216,12 @@ fn float(in: *lexer) (f64 | void | error) = {
 
 	let s = strio::string(&buf);
 	if (ascii::strcasecmp(s, "nan") == 0) return math::NAN;
-	if (ascii::strcasecmp(s, "+infinity") == 0) return math::INF;
-	if (ascii::strcasecmp(s, "-infinity") == 0) return -math::INF;
+	if (ascii::strcasecmp(s, "-nan") == 0) return -math::NAN;
+	if (ascii::strcasecmp(s, "+infinity") == 0 ||
+			ascii::strcasecmp(s, "infinity") == 0 ||
+			ascii::strcasecmp(s, "+inf") == 0 ||
+			ascii::strcasecmp(s, "inf") == 0) return math::INF;
+	if (ascii::strcasecmp(s, "-infinity") == 0 || ascii::strcasecmp(s, "-inf") == 0) return -math::INF;
 	return strconv::stof64(s)?;
 };