[Grammatica-users] BNF grammar files

[Dan Miller]

Hi, 
I am new to using grammatica, and its been years since I wrote something in 
BNF. I am trying to setup a command parser,
and I have it working when I group my command tokens such as 
ADD_COMMAND = "add lb monitor" but when I break it up  so that I have tokens 
for "add" "lb" "monitor" It fails with my input. I know it must be something 
silly I am forgetting. Can someone eyeball my grammar below. The data file that 
fails is below. It complains there is no "add" | "bind" in column 1 but there 
is in the input file. 

Below is the grammar. Thanks in advance

net.percederberg.grammatica.parser.ParserLogException: unexpected 
token "add" <IDENTIFIER_STRING>, expected one of "add", or "bind", on line 1 
column: 1


add lb monitor DEFAULT_HTTP "/" "."
add lb monitor wowza "/" "Wowza Media Server 2" -port 8086
add lb 
monitor tcp_check 
add server wowza3 63.240.112.28
add server 
wowza2 63.240.112.27
add server wowza1 63.240.112.26




%tokens%
NUMBER                       = <<[0-9]+>>
SINGLE_LINE_COMMENT          = <<//.*>> %ignore%
MULTI_LINE_COMMENT           = <</\*([^*]|\*+[^*/])*\*+/>> %ignore%
IDENTIFIER_STRING            = <<[a-zA-Z][a-zA-Z0-9-_]*>>
QUOTED_STRING                = <<"[^"]*"|'[^']*'>>
WHITESPACE                   = <<[ \t\n\r]+>> %ignore%
COMMENT                      = <<--([^\n\r-]|-[^\n\r-])*(--|-?[\n\r])>> %ignore%
IP_ADDRESS                   = 
<<\b(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\b>>
EMAIL_ADDRESS                 = <<address@hidden,4}\b>>


PORT_OPTION                    = "-port"
ADD_TOKEN                    = "add"
SERVER_TOKEN                  = "server"
SERVICE_TOKEN                = "service"
LB_TOKEN                    = "lb"
MONITOR_TOKEN                = "monitor"
VSERVER_TOKEN                = "vserver"
BIND_TOKEN                    = "bind"
ALERT_TOKEN                 = "alert"

/** Production definitions **/
%productions%
Start = CmdDefinition +;
CmdDefinition          = AddServerCmd | AddLbMonitorCmd | AddServiceCmd | 
AddLbVserverCmd | BindLbMonCmd| BindLbVserverCmd | BindAlertServiceCmd;

AddServer            = ADD_TOKEN WHITESPACE? SERVER_TOKEN;
AddService            = ADD_TOKEN SERVICE_TOKEN;
AddLb                 = ADD_TOKEN LB_TOKEN;
AddServerCmd          = AddServer WHITESPACE? IDENTIFIER_STRING WHITESPACE? 
IP_ADDRESS;
AddLbMonitorCmd      = AddLb MONITOR_TOKEN  WHITESPACE? IDENTIFIER_STRING 
WHITESPACE? QUOTED_STRING WHITESPACE? QUOTED_STRING WHITESPACE? [PORT_OPTION 
NUMBER] | AddLb MONITOR_TOKEN WHITESPACE? IDENTIFIER_STRING;
AddServiceCmd        = AddService IDENTIFIER_STRING IDENTIFIER_STRING NUMBER;
AddLbVserverCmd      = AddLb VSERVER_TOKEN IDENTIFIER_STRING;

BindLb                = BIND_TOKEN LB_TOKEN;
BindAlert            = BIND_TOKEN ALERT_TOKEN;
BindLbMonCmd         = BindLb MONITOR_TOKEN IDENTIFIER_STRING IDENTIFIER_STRING;
BindLbVserverCmd     = BindLb VSERVER_TOKEN IDENTIFIER_STRING IDENTIFIER_STRING;
BindAlertServiceCmd = BindAlert SERVICE_TOKEN IDENTIFIER_STRING EMAIL_ADDRESS;