function __construct($handlers = null)
{
if (!$handlers) {
$handlers = str_replace("\\", '/', dirname(__FILE__)) . '/handlers/';
}
parent::__construct("\n S -> < ? xml {attribute_list} ? > {element_content}\n element -> {element_empty} | {element_content}\n element_empty -> < -string_id- / >\n element_content -> < -string_id- {attribute_list} > {content_list} < / -string_id- >\n attribute_list -> {attribute} {attribute_list} | -eps-\n attribute -> -string_id- = -string-\n content_list -> {content} {content_list} | -eps-\n content -> {element} | -text- | -eps-\n ", $handlers);
}
function __construct($handlers = null)
{
if (!$handlers) {
$handlers = str_replace("\\", '/', dirname(__FILE__)) . '/handlers/';
}
/*
boolean_expression -> {expression} {expression_op}
expression_op -> AND {boolean_expression} | OR {boolean_expression} | -eps-
expression -> ( {boolean_expression} ) | {expression_compose}
expression_compose -> {comparation} {expression_op}
*/
parent::__construct(<<<PPP
S -> {SELECT}
SELECT -> SELECT {columns} FROM {relations} {conditions} {groupby} {orderby} {limit}
columns -> {columns_field} {columns_list} | *
relations -> {relation} {relations_list}
conditions -> WHERE {boolean_expression} | -eps-
groupby -> GROUP BY {field} {fields_list} | -eps-
orderby -> ORDER BY {orderby_field} {orderby_field_list} | -eps-
limit -> LIMIT -integer- {limit_end} | -eps-
columns_field -> {element} {alias}
columns_list -> , {columns_field} {columns_list} | -eps-
relation -> {source} {alias}
relations_list -> {relations_list_operation} {relation} {relations_list_condition} {relations_list} | -eps-
relations_list_condition -> ON {boolean_expression} | -eps-
relations_list_operation -> JOIN | LEFT JOIN
fields_list -> , {field} {field_list} | -eps-
orderby_field -> {field} {orderby_field_type}
orderby_field_type -> DESC | ASC
orderby_field_list -> , {orderby_field} {orderby_field_list} | -eps-
limit_end -> , -integer- | -eps-
field -> {identifier} {field_specific}
field_specific -> . {identifier} | -eps-
source -> {identifier} | ( {SELECT} )
alias -> AS -string_id- | -eps-
identifier -> -string_id- | ` [string_id] `
boolean_expression -> {boolean_expression_term} {boolean_expression_p}
boolean_expression_p -> OR {boolean_expression_term} {boolean_expression_p} | -eps-
boolean_expression_term -> {expression} {boolean_expression_term_p}
boolean_expression_term_p -> AND {expression} {boolean_expression_term_p} | -eps-
expression -> ( {boolean_expression} ) | {comparation}
comparation -> {element} {comparation_comparator} {element}
element -> * | {function} {values} | {field} | {values} | {value}
comparation_comparator -> = | != | < | > | >= | <= | not like | like | not in | in
function -> count | max | min | distinct
values -> ( {element} {values_list} )
values_list -> , {element} {values_list} | -eps-
value -> -numeric- | -string-
PPP
, $handlers);
}