Custom encoding name with spaces (issue #563)

Signed-off-by: Adam Knapp <adam.knapp@ericsson.com>

compiler2/ttcn3/coding_attrib_la.l

@@ -72,6 +72,7 @@ LINECOMMENT "//"[^\r\n]*
 WHITESPACE [ \t\v\f]
 NEWLINE \r|\n|\r\n
 IDENTIFIER [A-Za-z][A-Za-z0-9_]*
+IDENTIFIER2 [A-Za-z][A-Za-z0-9_ ]*
 NUMBER 0|[1-9][0-9]*
 
 %s SC_start
@@ -231,7 +232,7 @@ verdicttype RETURN(VerdictTypeKeyword);
     yylval.encoding_type = Type::CT_OER;
     RETURN(EncodingType);
   }
-  {IDENTIFIER} {
+  {IDENTIFIER2} {
     yylval.str = new string(yyleng, yytext);
     RETURN(CustomEncoding);
   }

function_test/Semantic_Analyser/TTCN3_SA_10_TD.script

@@ -314,7 +314,7 @@ with {
 }
 }
 <END_MODULE>
-<RESULT IF_PASS COUNT 7>
+<RESULT IF_PASS COUNT 8>
 (?is)\berror:
 <END_RESULT>
 <RESULT IF_PASS POSITIVE>