add a few comments

Author: kimiatkh

libs/libvqm/vqm_parser.l

@@ -62,7 +62,7 @@ assign                                      return TOKEN_ASSIGN;
                                                 yylval.value = atoi(yytext); 
                                                 return TOKEN_INTCONSTANT;
                                             }
-\\[^ ^\t^;]+                                  {
+\\[^ ^\t^;]+                                {
                                                 yylval.string = (char *)malloc(yyleng);
                                                 strcpy(yylval.string, yytext+1);
                                                 return TOKEN_ESCAPEDID;
@@ -73,7 +73,7 @@ assign                                      return TOKEN_ASSIGN;
                                                 yylval.string[yyleng-2] = 0;
                                                 return TOKEN_STRING;
                                             }
-[1-9][0-9]*'[b|h][0-9|A-F]+                         {
+[1-9][0-9]*'[b|h][0-9|A-F]+                 { /* bit strings can be in binary or hexadecimal format */ 
                                                 yylval.string = (char *)malloc(yyleng+1);
                                                 strcpy(yylval.string, yytext);
                                                 return TOKEN_BITSTRING;

libs/libvqm/vqm_parser.y

@@ -127,7 +127,7 @@ header:		TOKEN_MODULE TOKEN_REGULARID '(' IdentifierList ')' ';'
 			;
 
 body:           /* Empty */ {}
-			|	body declaration_statement {}
+			|	body declaration_statement {} /* the body consists of a mix of declarations and statements */
 			;