<?php $string = /*$_GET['input'];*/ "Timothy Gentet-O'Brien"; $simpleBuilder = simpleBuilder($string); $advancedBuilder = advancedBuilder($simpleBuilder); echo "<script>console.log('advancedBuilder: ' + advancedBuilder);</script>"; echo "\r\n"; echo $advancedBuilder; // simpleBuilder() takes in an arrray of strings or a comma separated string, this should return // an Array of basic RegEx's function simpleBuilder($input) { // Check to see if it is an array, if it is not then we use .split(',') to convert it to an array. $input = is_array($input) ? $input : explode(',', $input); $simpleRegEx = []; // Iterate over all of the values in the array. for ($i = 0; $i < count($input); $i++) { // Set simpleRegEx[$i] to '' to ensure the code doesn't set it to "undefinedXXXX" $simpleRegEx[$i] = ''; // Run ltrim() and rtrim() on the current string ton ensure we have to extra and unneeded white spaces. $input[$i] = ltrim(rtrim($input[$i])); // Iterate over the current string to work out what each character is and assign simpleRegEx[$i] the relevant RegEx character for ($j = 0; $j < count($input[$i]); $j++) { if (preg_match('/[ \f\n\r\t\v\u00a0\u1680\u180e\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff]/', $input[$i][$j])) { $simpleRegEx[$i] += '\\s'; } else if (preg_match('/[0-9]/', $input[$i][$j])) { $simpleRegEx[$i] += '\\d'; } else if (preg_match('/[A-Za-z0-9_]/', $input[$i][$j])) { $simpleRegEx[$i] += '\\w'; } else if (preg_match('/[^A-Za-z0-9_]/', $input[$i][$j])) { $simpleRegEx[$i] += '\\W'; } else if (preg_match('/[^ \f\n\r\t\v\u00a0\u1680\u180e\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff]/', $input[$i][$j])) { $simpleRegEx[$i] += '\\S'; } } } // Return the completed Array, which should look something like: ['\w\w\w\w\d\d\d','\w\w\w'] return $simpleRegEx; } // advancedBuilder() takes the output from simpleBuilder(), which is an Array of RegEx Strings, this should return // a more Array of complex set of RegEx's function advancedBuilder($simpleRegEx) { $prev = $curr = $next = null; $rcount = 1; $advancedRegex = []; // Iterate over the array for ($t = 0; $t < count($simpleRegEx); $t++) { // Again set advancedRegex[$t] to '' to ensure the code doesn't set it to "undefinedXXXX" $advancedRegex[$t] = ''; // Iterate over the current string, check the current, next and previous characters to // calculate whether or not we should be joining these, if everything if good, it should // then add the RegEx character '\d' and work out how many times this appears, it should // then output something like: '\d{4}'. for ($s = 0; $s < count($simpleRegEx[$t]); $s += 2) { $curr = $simpleRegEx[$t][$s] + $simpleRegEx[$t][$s + 1]; $next = $simpleRegEx[$t][$s + 2] + $simpleRegEx[$t][$s + 3]; $prev = $simpleRegEx[$t][$s - 2] + $simpleRegEx[$t][$s - 1]; if ($curr == $next) { if ($prev != $curr) { $advancedRegex[$t] += $curr; } $rcount += 1; } else { $advancedRegex[$t] += ($rcount == 1 ? $curr : '{' + $rcount + '}'); $rcount = 1; } } } // The Array of RegEx's, this should look something like: ["\w{7}\d{3}", "\w{3}"] // so we use .join('|') to add in an OR operator and add a caret and a dollar symbol // to show the start and end of the newly formed string to return a full RegEx $advancedRegex = '^' + join('|', $advancedRegex) + '$'; return $advancedRegex; } ?>
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