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|
%error-verbose
%{
/*
* phpdbg_parser.y
* (from php-src root)
* flex sapi/phpdbg/dev/phpdbg_lexer.l
* bison sapi/phpdbg/dev/phpdbg_parser.y
*/
#include "phpdbg.h"
#include "phpdbg_cmd.h"
#include "phpdbg_utils.h"
#include "phpdbg_cmd.h"
#include "phpdbg_prompt.h"
#define YYSTYPE phpdbg_param_t
#include "phpdbg_parser.h"
#include "phpdbg_lexer.h"
ZEND_EXTERN_MODULE_GLOBALS(phpdbg);
int yyerror(phpdbg_param_t *stack, yyscan_t scanner, const char *msg) {
TSRMLS_FETCH();
phpdbg_error("Parse Error: %s", msg);
{
const phpdbg_param_t *top = stack;
while (top) {
phpdbg_param_debug(
top, "--> ");
top = top->next;
}
}
return 0;
}
%}
%code requires {
#include "phpdbg.h"
#ifndef YY_TYPEDEF_YY_SCANNER_T
#define YY_TYPEDEF_YY_SCANNER_T
typedef void* yyscan_t;
#endif
}
%output "sapi/phpdbg/phpdbg_parser.c"
%defines "sapi/phpdbg/phpdbg_parser.h"
%define api.pure
%lex-param { yyscan_t scanner }
%parse-param { phpdbg_param_t *stack }
%parse-param { yyscan_t scanner }
%token T_EVAL "eval"
%token T_RUN "run"
%token T_SHELL "shell"
%token T_IF "if (condition)"
%token T_TRUTHY "truthy (true, on, yes or enabled)"
%token T_FALSY "falsy (false, off, no or disabled)"
%token T_STRING "string (some input, perhaps)"
%token T_COLON ": (colon)"
%token T_DCOLON ":: (double colon)"
%token T_POUND "# (pound sign)"
%token T_PROTO "protocol (file://)"
%token T_DIGITS "digits (numbers)"
%token T_LITERAL "literal (string)"
%token T_ADDR "address"
%token T_OPCODE "opcode"
%token T_ID "identifier (command or function name)"
%token T_INPUT "input (input string or data)"
%token T_UNEXPECTED "input"
%%
input
: parameters
| /* nothing */
;
parameters
: parameter { phpdbg_stack_push(stack, &$1); }
| parameters parameter { phpdbg_stack_push(stack, &$2); }
;
parameter
: T_ID T_COLON T_DIGITS {
$$.type = FILE_PARAM;
$$.file.name = $2.str;
$$.file.line = $3.num;
}
| T_ID T_COLON T_POUND T_DIGITS {
$$.type = NUMERIC_FILE_PARAM;
$$.file.name = $1.str;
$$.file.line = $4.num;
}
| T_PROTO T_ID T_COLON T_DIGITS {
$$.type = FILE_PARAM;
$$.file.name = malloc($1.len +
$2.len + 1);
if ($$.file.name) {
memcpy(&$$.file.name[0], $1.str, $1.len);
memcpy(&$$.file.name[$1.len], $2.str, $2.len);
$$.file.name[$1.len + $2.len] = '\0';
}
$$.file.line = $4.num;
}
| T_PROTO T_ID T_COLON T_POUND T_DIGITS {
$$.type = NUMERIC_FILE_PARAM;
$$.file.name = malloc($1.len +
$2.len + 1);
if ($$.file.name) {
memcpy(&$$.file.name[0], $1.str, $1.len);
memcpy(&$$.file.name[$1.len], $2.str, $2.len);
$$.file.name[$1.len + $2.len] = '\0';
}
$$.file.line = $5.num;
}
| T_ID T_DCOLON T_ID {
$$.type = METHOD_PARAM;
$$.method.class = $1.str;
$$.method.name = $3.str;
}
| T_ID T_DCOLON T_ID T_POUND T_DIGITS {
$$.type = NUMERIC_METHOD_PARAM;
$$.method.class = $1.str;
$$.method.name = $3.str;
$$.num = $5.num;
}
| T_ID T_POUND T_DIGITS {
$$.type = NUMERIC_FUNCTION_PARAM;
$$.str = $1.str;
$$.len = $1.len;
$$.num = $3.num;
}
| T_IF T_INPUT {
$$.type = COND_PARAM;
$$.str = $2.str;
$$.len = $2.len;
}
| T_EVAL T_INPUT {
$$.type = EVAL_PARAM;
$$.str = $2.str;
$$.len = $2.len;
}
| T_SHELL T_INPUT {
$$.type = SHELL_PARAM;
$$.str = $2.str;
$$.len = $2.len;
}
| T_RUN {
$$.type = RUN_PARAM;
$$.len = 0;
}
| T_RUN T_INPUT {
$$.type = RUN_PARAM;
$$.str = $2.str;
$$.len = $2.len;
}
| T_OPCODE { $$ = $1; }
| T_ADDR { $$ = $1; }
| T_LITERAL { $$ = $1; }
| T_TRUTHY { $$ = $1; }
| T_FALSY { $$ = $1; }
| T_DIGITS { $$ = $1; }
| T_ID { $$ = $1; }
;
%%
|
