expr: addeed support for variables starting with digits.

ChangeLog

@@ -3,6 +3,10 @@
 	* Using CDI library version 1.8.3
 	* Version 1.9.0 release
 
+2017-05-23  Uwe Schulzweida
+
+	* expr: addeed support for variables starting with digits
+
 2017-05-22  Uwe Schulzweida
 
 	* settbounds: added support for hourly frequencies

src/expr_lex.l

@@ -76,6 +76,11 @@ M_E          {
                 return VARIABLE;
              }
 
+{LPHDGT}*{LPH}{LPHDGT}* {
+                yylval->varnm = strdup(yytext);
+                return VARIABLE;
+             }
+
 
 [-()=+*/;,{}^.?:] {
                 return *yytext;

src/yacc_lex

-# bison version 3.0.4;  flex version 2.5.37
-bison -W -y -r all -o expr_yacc.c -d expr_yacc.y
-flex -v -oexpr_lex.c expr_lex.l
+# bison version 3.0.4;  flex version 2.6.1
+bison -W -y -r all -o expr_yacc.cc -d expr_yacc.y
+flex -v -oexpr_lex.cc expr_lex.l