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154 lines
3.6 KiB
PHP
154 lines
3.6 KiB
PHP
<?php
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/**
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* Template Lite compile 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_compile_if($arguments, $elseif, $while, &$object)
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{
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$_result = "";
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$_match = array();
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$_args = array();
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$_is_arg_stack = array();
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// extract arguments from the equation
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preg_match_all('/(?>(' . $object->_var_regexp . '|\/?' . $object->_svar_regexp . '|\/?' . $object->_func_regexp . ')(?:' . $object->_mod_regexp . '*)?|\-?0[xX][0-9a-fA-F]+|\-?\d+(?:\.\d+)?|\.\d+|!==|===|==|!=|<>|<<|>>|<=|>=|\&\&|\|\||\(|\)|,|\!|\^|=|\&|\~|<|>|\%|\+|\-|\/|\*|\@|\b\w+\b|\S+)/x', $arguments, $_match);
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$_args = $_match[0];
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// make sure we have balanced parenthesis
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$_args_count = array_count_values($_args);
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if(isset($_args_count['(']) && $_args_count['('] != $_args_count[')'])
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{
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$object->trigger_error("unbalanced parenthesis in if statement", E_USER_ERROR, __FILE__, __LINE__);
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}
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$count_args = count($_args);
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for ($i = 0, $for_max = $count_args; $i < $for_max; $i++)
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{
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$_arg = &$_args[$i];
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switch (strtolower($_arg))
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{
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case '!':
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case '%':
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case '!==':
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case '==':
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case '===':
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case '>':
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case '<':
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case '!=':
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case '<>':
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case '<<':
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case '>>':
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case '<=':
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case '>=':
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case '&&':
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case '||':
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case '^':
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case '&':
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case '~':
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case ')':
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case ',':
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case '+':
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case '-':
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case '*':
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case '/':
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case '@':
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break;
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case 'eq':
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$_arg = '==';
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break;
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case 'ne':
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case 'neq':
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$_arg = '!=';
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break;
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case 'lt':
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$_arg = '<';
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break;
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case 'le':
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case 'lte':
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$_arg = '<=';
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break;
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case 'gt':
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$_arg = '>';
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break;
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case 'ge':
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case 'gte':
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$_arg = '>=';
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break;
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case 'and':
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$_arg = '&&';
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break;
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case 'or':
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$_arg = '||';
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break;
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case 'not':
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$_arg = '!';
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break;
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case 'mod':
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$_arg = '%';
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break;
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case '(':
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array_push($_is_arg_stack, $i);
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break;
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case 'is':
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if ($_args[$i-1] == ')')
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{
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$is_arg_start = array_pop($is_arg_stack);
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}
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else
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{
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$_is_arg_count = count($_args);
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$is_arg = implode(' ', array_slice($_args, $is_arg_start, $i - $is_arg_start));
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$_arg_tokens = $object->_parse_is_expr($is_arg, array_slice($_args, $i+1));
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array_splice($_args, $is_arg_start, count($_args), $_arg_tokens);
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$i = $_is_arg_count - count($_args);
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}
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break;
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default:
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preg_match('/(?:(' . $object->_var_regexp . '|' . $object->_svar_regexp . '|' . $object->_func_regexp . ')(' . $object->_mod_regexp . '*)(?:\s*[,\.]\s*)?)(?:\s+(.*))?/xs', $_arg, $_match);
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if (isset($_match[0]{0}) && ($_match[0]{0} == '$' || ($_match[0]{0} == '#' && $_match[0]{strlen($_match[0]) - 1} == '#') || $_match[0]{0} == "'" || $_match[0]{0} == '"' || $_match[0]{0} == '%'))
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{
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// process a variable
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$_arg = $object->_parse_variables(array($_match[1]), array($_match[2]));
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}
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elseif (is_numeric($_arg))
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{
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// pass the number through
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}
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elseif (function_exists($_match[0]) || $_match[0] == "empty" || $_match[0] == "isset" || $_match[0] == "unset" || strtolower($_match[0]) == "true" || strtolower($_match[0]) == "false" || strtolower($_match[0]) == "null")
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{
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// pass the function through
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}
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elseif (empty($_arg))
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{
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// pass the empty argument through
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}
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else
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{
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$object->trigger_error("unidentified token '$_arg'", E_USER_ERROR, __FILE__, __LINE__);
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}
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break;
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}
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}
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if($while)
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{
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return implode(' ', $_args);
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}
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else
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{
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if ($elseif)
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{
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return '<?php elseif ('.implode(' ', $_args).'): ?>';
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}
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else
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{
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return '<?php if ('.implode(' ', $_args).'): ?>';
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}
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}
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return $_result;
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}
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?>
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