note 103213 added to function.assert

Better assert. Returns the assert expression from the file, rather than writing asserts as a string. Includes related comments, and works with multiline asserts. <?php function simple_assert_callback($file, $line, $code) { $lines = file ($file); $start_of_assert = '~(^|[^A-Za-z0-9_])assert($|[^A-Za-z0-9_])~'; $comment_line_regex = '~^\s*(\*|//|/\*)~'; $end_of_statement_regex = '~;\s*$~'; // if this is a multiline assert, the given line may be the end of the // assert statement. Look backwards until we find something that looks // like it could be the start of the assert for ($startline = $line; $startline > 0; $startline--) { // see if the line contains the start of the assert // -1 to convert to 0 indexed if (preg_match($start_of_assert, $lines[($startline - 1)])) { // found the assert function break; } } // find all comment lines before the assert for (; $startline > 0; $startline--) { // see if the previous line is also a comment // -1 to convert to 0 indexed // -1 to look at previous line if (!preg_match($comment_line_regex, $lines[($startline - 1) - 1])) { // No more related comments before this line break; } } // the assert might be spread across more than one line. Just for fun, // keep looking until we reach a line that ends with ';' for ($endline = $line; $endline < count($lines); $endline++) { // see if we have the end of the statement yet // NOTE: This isn't a perfect test, but it's better than nothing. // -1 to convert to 0 indexed // +1 to look at next line if (!preg_match($end_of_statement_regex, $lines[($endline - 1) + 1])) { // No more related comments before this line break; } } // get the lines from start to end $assertlines = array(); for($a = $startline; $a <= $endline; $a++) { // -1 to convert to 0 indexed $assertlines[$a] = $lines[$a - 1]; } trigger_error("Assert Failed in ".htmlentities($file)." on line ".htmlentities($line).format_assert_code($assertlines), E_USER_WARNING); } // Format however you want. This is just an example. function format_assert_code($code, $line_start_number = null, $highlight = true) { if (is_array($code)) $code = implode("", $code); if (ereg("^<\?(php)?[^[:graph:]]", $code)) { $code = highlight_string($code, 1); } else { $code = highlight_string("<?php ".$code, 1); $code = substr($code, strpos($code, '&lt;?php&nbsp;') + strlen('&lt;?php&nbsp;')); } return '<div style="background: white; border: 1px solid black;">'.$code."</div>"; } assert_options(ASSERT_CALLBACK, 'simple_assert_callback'); assert(false); // assert with no preceding comment // This is an assert test. It should dump the comment assert(false); /** * Another assert test :) * Doc style comment. Pretty cool */ assert(false); /** * Multiline assert!! */ assert( false ); ---- Server IP: 69.147.83.197 Probable Submitter: 184.76.248.207 ---- Manual Page -- http://www.php.net/manual/en/function.assert.php Edit -- https://master.php.net/note/edit/103213 Del: integrated -- https://master.php.net/note/delete/103213/integrated Del: useless -- https://master.php.net/note/delete/103213/useless Del: bad code -- https://master.php.net/note/delete/103213/bad+code Del: spam -- https://master.php.net/note/delete/103213/spam Del: non-english -- https://master.php.net/note/delete/103213/non-english Del: in docs -- https://master.php.net/note/delete/103213/in+docs Del: other reasons-- https://master.php.net/note/delete/103213 Reject -- https://master.php.net/note/reject/103213 Search -- https://master.php.net/manage/user-notes.php