[antlr-interest] (no subject)

[lin q]

Hi,

I like to parse some simple name/value pair data file in the format of
"name=value" at each line, here is an example:

race=asia
age=10
name=uart
gender=m


I have the following grammar snippet:
/*-------------------------------------------------------------------------------------------
  parser rules
  -------------------------------------------------------------------------------------------*/
all_rec
        :       common_param
                EOF
        ;


common_param
        :      ( 'gender=' VAL )
                |
               ( 'race=' VAL )
                |
               ( 'name=' VAL )
                |
               ( 'age=' VAL )
               New_Line+
        ;


/*-------------------------------------------------------------------------------------------
  lexer rules
  -------------------------------------------------------------------------------------------*/
VAL :  ('a'..'z' | 'A'..'Z' | '0'..'9' | '_' | '.' )+ ;

WS : ('\t' | ' ')+ ;

New_Line : ('\r' | '\n')+   ;


But when I run it, I get the following error:

test.in(1)  : error 1 : Unexpected token, at offset 8
    near [Index: 2 (Start: 309691209-Stop: 309691209) ='
', type<4> Line: 1 LinePos:8]
     : syntax error...


The content of test.in is

race=asia
age=10
name=uart
gender=m

Do you see what exactly is the problem?