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POEBNF grammar to ANTLR3?
 

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  1. POEBNF grammar to ANTLR3?
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    <p>I have this EBNF grammar for the Jass scripting language.<br/> What needs to be done to convert it to work with ANTLR 3.5?<br/> Furthermore, are there any sort of tools available to aid me in doing so? <br/><br></p> <pre><code>//---------------------------------------------------------------------- // Global Declarations //---------------------------------------------------------------------- program ::= file+ file ::= newline? ( declr newline )* func* declr ::= typedef | globals | native_func typedef ::= 'type' id 'extends' ( 'handle' | id ) globals ::= 'globals' newline global_var_list 'endglobals' global_var_list ::= ( 'constant' type id '=' expr newline | var_declr newline )* native_func ::= 'constant'? 'native' func_declr func_declr ::= id 'takes' ( 'nothing' | param_list ) 'returns' ( type | 'nothing' ) param_list ::= type id ( ',' type id )* func ::= 'constant'? 'function' func_declr newline local_var_list statement_list 'endfunction' newline //---------------------------------------------------------------------- // Local Declarations //---------------------------------------------------------------------- local_var_list ::= ( 'local' var_declr newline )* var_declr ::= type id ( '=' expr )? | type 'array' id statement_list ::= ( statement newline )* statement ::= set | call | ifthenelse | loop | exitwhen | return | debug set ::= 'set' id '=' expr | 'set' id '[' expr ']' '=' expr call ::= 'call' id '(' args? ')' args ::= expr ( ',' expr )* ifthenelse ::= 'if' expr 'then' newline statement_list else_clause? 'endif' else_clause ::= 'else' newline statement_list | 'elseif' expr 'then' newline statement_list else_clause? loop ::= 'loop' newline statement_list 'endloop' exitwhen ::= 'exitwhen' expr return ::= 'return' expr? debug ::= 'debug' ( set | call | ifthenelse | loop ) //---------------------------------------------------------------------- // Expressions //---------------------------------------------------------------------- expr ::= binary_op | unary_op | func_call | array_ref | func_ref | id | const | parens binary_op ::= expr ( [+-*/&gt;&lt;] | '==' | '!=' | '&gt;=' | '&lt;=' | 'and' | 'or' ) expr unary_op ::= ( '+' | '-' | 'not' ) expr func_call ::= id '(' args? ')' array_ref ::= id '[' expr ']' func_ref ::= 'function' id const ::= int_const | real_const | bool_const | string_const | 'null' int_const ::= decimal | octal | hex | fourcc decimal ::= [1-9] [0-9]* octal ::= '0' [0-7]* hex ::= '$' [0-9a-fA-F]+ | '0' [xX] [0-9a-fA-F]+ fourcc ::= '' ' .{4} ' '' real_const ::= [0-9]+ '.' [0-9]* | '.' [0-9]+ bool_const ::= 'true' | 'false' string_const ::= '"' .* '"' parens ::= '(' expr ')' //---------------------------------------------------------------------- // Base RegEx //---------------------------------------------------------------------- type ::= id | 'code' | 'handle' | 'integer' | 'real' | 'boolean' | 'string' id ::= [a-zA-Z] ( [a-zA-Z0-9_]* [a-zA-Z0-9] )? newline ::= '\n'+ </code></pre> <p><br/> Thanks in advance to any advice offered!</p>
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    1. COAs it turns out, ANTLR grammars are nearly identical to standard EBNF grammars. [Here's a really good reference guide on understanding ANTLR3 grammars](http://www.antlr.org/wiki/display/ANTLR3/Quick+Starter+on+Parser+Grammars+-+No+Past+Experience+Required)
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