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77 lines
1.5 KiB
PHP
77 lines
1.5 KiB
PHP
<?php
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/**
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* Template Lite compile IS exprenssion in IF tag - template internal module
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*
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* Type: template
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* Name: compile_parse_is_expr
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*/
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function compile_parse_is_expr($is_arg, $_args, &$object)
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{
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$expr_end = 0;
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$negate_expr = false;
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if (($first_arg = array_shift($_args)) == 'not') {
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$negate_expr = true;
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$expr_type = array_shift($_args);
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}
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else
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{
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$expr_type = $first_arg;
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}
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switch ($expr_type) {
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case 'even':
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if (isset($_args[$expr_end]) && $_args[$expr_end] == 'by')
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{
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$expr_end++;
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$expr_arg = $_args[$expr_end++];
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$expr = "!(1 & ($is_arg / " . $object->_parse_variable($expr_arg) . "))";
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}
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else
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{
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$expr = "!(1 & $is_arg)";
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}
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break;
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case 'odd':
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if (isset($_args[$expr_end]) && $_args[$expr_end] == 'by')
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{
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$expr_end++;
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$expr_arg = $_args[$expr_end++];
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$expr = "(1 & ($is_arg / " . $object->_parse_variable($expr_arg) . "))";
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}
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else
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{
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$expr = "(1 & $is_arg)";
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}
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break;
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case 'div':
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if (@$_args[$expr_end] == 'by')
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{
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$expr_end++;
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$expr_arg = $_args[$expr_end++];
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$expr = "!($is_arg % " . $object->_parse_variable($expr_arg) . ")";
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}
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else
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{
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$object->trigger_error("expecting 'by' after 'div'", E_USER_ERROR, __FILE__, __LINE__);
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}
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break;
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default:
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$object->trigger_error("unknown 'is' expression - '$expr_type'", E_USER_ERROR, __FILE__, __LINE__);
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break;
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}
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if ($negate_expr) {
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$expr = "!($expr)";
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}
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array_splice($_args, 0, $expr_end, $expr);
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return $_args;
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}
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?>
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