X-Git-Url: https://www.ginac.de/ginac.git//ginac.git?p=ginac.git;a=blobdiff_plain;f=ginac%2Fparser%2Flexer.cpp;h=7c3e6c84aecf5ac6d62db29452de77f981791a95;hp=d8c49b8cf4b35da972b19074b506aa0380c3725e;hb=3324b2f0f035490940b1a9d7cf5dc210776f6d87;hpb=85dbe3f2049dce7d43a1bd956d622f4ff5c0c156

diff --git a/ginac/parser/lexer.cpp b/ginac/parser/lexer.cpp
index d8c49b8c..7c3e6c84 100644
--- a/ginac/parser/lexer.cpp
+++ b/ginac/parser/lexer.cpp
@@ -35,13 +35,23 @@ int lexer::gettok()
 			return token_type::identifier;
 	}
 
-	// Number: [0-9.]+
+	// Number: [0-9]+([.][0-9]*(eE[+-][0-9]+)*)*
 	if (isdigit(c) || c == '.') {
 		str = "";
 		do {
 			str += c;
 			c = input->get();
 		} while (isdigit(c) || c == '.');
+		if (c == 'E' || c == 'e') {
+			str += 'E';
+			c = input->get();
+			if (isdigit(c))
+				str += '+';
+			do {
+				str += c;
+				c = input->get();
+			} while (isdigit(c));
+		}
 		return token_type::number;
 	}