231 lines
7.5 KiB
PHP
231 lines
7.5 KiB
PHP
<?php
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namespace App\Classes;
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use Illuminate\Support\Arr;
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use Illuminate\Support\Collection;
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use Illuminate\Support\Facades\Log;
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use Illuminate\Support\Facades\Storage;
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use Illuminate\Support\Str;
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class Template
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{
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private const LOGKEY = 'T--';
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private(set) string $file;
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private array $template;
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private(set) bool $invalid = FALSE;
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private(set) string $reason = '';
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private Collection $on_change_target;
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private Collection $on_change_attribute;
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private bool $on_change_processed = FALSE;
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public function __construct(string $file)
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{
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$td = Storage::disk(config('pla.template.dir'));
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$this->on_change_attribute = collect();
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$this->on_change_target = collect();
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$this->file = $file;
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try {
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// @todo Load in the proper attribute objects and objectclass objects
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// @todo Make sure we have a structural objectclass, or make the template invalid
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$this->template = json_decode($td->get($file),null,512,JSON_OBJECT_AS_ARRAY|JSON_THROW_ON_ERROR);
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} catch (\JsonException $e) {
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$this->invalid = TRUE;
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$this->reason = $e->getMessage();
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}
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}
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public function __get(string $key): mixed
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{
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return match ($key) {
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'attributes' => collect(Arr::get($this->template,$key))->keys(),
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'enabled' => Arr::get($this->template,$key,FALSE) && (! $this->invalid),
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'icon','regexp','title' => Arr::get($this->template,$key),
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'name' => Str::replaceEnd('.json','',$this->file),
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'objectclasses' => collect(Arr::get($this->template,$key)),
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'order' => collect(Arr::get($this->template,'attributes'))->map(fn($item)=>$item['order']),
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default => throw new \Exception('Unknown key: '.$key),
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};
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}
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public function __isset(string $key): bool
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{
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return array_key_exists($key,$this->template);
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}
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public function onChange(string $attribute): Collection|NULL
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{
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if (! $this->on_change_processed)
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$this->onChangeProcessing();
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return $this->on_change_attribute
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->get(strtolower($attribute));
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}
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/**
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* Is this attribute's value populated by any onChange processing rules
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*
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* @param string $attribute
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* @return bool
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*/
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public function onChangeAttribute(string $attribute): bool
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{
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if (! $this->on_change_processed)
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$this->onChangeProcessing();
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return $this->on_change_attribute
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->has(strtolower($attribute));
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}
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/**
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* Return the onchange JavaScript for attribute
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*
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* @return Collection
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*/
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private function onChangeProcessing(): void
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{
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foreach (Arr::get($this->template,'attributes',[]) as $attribute => $detail) {
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$result = collect();
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foreach (Arr::get($detail,'onchange',[]) as $item) {
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list($command,$args) = preg_split('/^=([a-zA-Z]+)\((.+)\)$/',$item,-1,PREG_SPLIT_DELIM_CAPTURE|PREG_SPLIT_NO_EMPTY);
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switch ($command) {
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case 'autoFill':
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$result->push($this->autofill($args));
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break;
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}
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}
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if ($result->count())
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$this->on_change_attribute->put(strtolower($attribute),$result);
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}
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$this->on_change_processed = TRUE;
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}
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/**
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* Is this attribute's value populated by any onChange processing rules
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*
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* @param string $attribute
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* @return bool
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*/
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public function onChangeTarget(string $attribute): bool
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{
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if (! $this->on_change_processed)
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$this->onChangeProcessing();
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return $this->on_change_target
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->has(strtolower($attribute));
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}
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/**
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* autoFill - javascript to have one attribute fill the value of another
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*
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* args: is a literal string, with two parts, delimited by a semi-colon ;
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* + The first part is the attribute that will be populated
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* + The second part may contain many fields like %attr|start-end/flags|additionalcontrolchar%
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* to substitute values read from other fields.
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* + |start-end is optional, but must be present if the k flag is used
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* + /flags is optional
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* + |additionalcontrolchar is optional, and specific to a flag being used
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*
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* + flags may be:
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* T:(?) Read display text from selection item (drop-down list), otherwise, read the value of the field
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* For fields that aren't selection items, /T shouldn't be used, and the field value will always be read
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* k:(?) Tokenize:
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* If the "k" flag is not given:
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* + A |start-end instruction will perform a sub-string operation upon the value of the attr, passing
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* character positions start-end through
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* + start can be 0 for first character, or any other integer
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* + end can be 0 for last character, or any other integer for a specific position
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* If the "k" flag is given:
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* + The string read will be split into fields, using : as a delimiter
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* + start indicates which field number to pass through
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*
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* If additionalcontrolchar is given, it will be used as delimiter (e.g. this allows for splitting
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* e-mail addresses into domain and domain-local part)
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* l: Make the result lower case
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* U: Make the result upper case
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* A:(?) Remap special characters to their corresponding ASCII value
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*
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* @note Attributes rendered on the page are lowercase, eg: <attribute id="gidnumber"> for gidNumber
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* @note JavaScript generated here depends on js/template.js
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* (?) = to test
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*/
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private function autofill(string $arg): string
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{
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if (! preg_match('/;/',$arg)) {
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Log::alert(sprintf('%s:Invalid argument given to autofill [%s]',self::LOGKEY,$arg));
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return '';
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}
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$result = '';
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// $attr has our attribute to update, $string is the format to use when updating it
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list($attr,$string) = preg_split('(([^,]+);(.*))',$arg,-1,PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_NO_EMPTY);
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$this->on_change_target->put(strtolower($attr),$string);
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$output = $string;
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//$result .= sprintf("\n// %s\n",$arg);
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$m = [];
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// MATCH : 0 = highlevel match, 1 = attr, 2 = subst, 3 = mod, 4 = delimiter
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preg_match_all('/%(\w+)(?:\|([0-9]*-[0-9])+)?(?:\/([klTUA]+))?(?:\|(.)?)?%/U',$string,$m);
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foreach ($m[0] as $index => $null) {
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$match_attr = strtolower($m[1][$index]);
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$match_subst = $m[2][$index];
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$match_mod = $m[3][$index];
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$match_delim = $m[4][$index];
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$substrarray = [];
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$result .= sprintf("var %s;\n",$match_attr);
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if (str_contains($match_mod,'k')) {
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preg_match_all('/([0-9]+)/',trim($match_subst),$substrarray);
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$delimiter = ($match_delim === '') ? ' ' : preg_quote($match_delim);
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$result .= sprintf(" %s = %s.split('%s')[%s];\n",$match_attr,$match_attr,$delimiter,$substrarray[1][0] ?? '0');
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} else {
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// Work out the start and end chars needed from this value if we have a range specifier
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preg_match_all('/([0-9]*)-([0-9]+)/',$match_subst,$substrarray);
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if ((isset($substrarray[1][0]) && $substrarray[1][0]) || (isset($substrarray[2][0]) && $substrarray[2][0])) {
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$result .= sprintf("%s = get_attribute('%s',%d,%s);\n",
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$match_attr,$match_attr,
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$substrarray[1][0] ?? '0',
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$substrarray[2][0] ?: sprintf('%s.length',$match_attr));
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} else {
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$result .= sprintf("%s = get_attribute('%s');\n",$match_attr,$match_attr);
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}
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}
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if (str_contains($match_mod,'l'))
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$result .= sprintf("%s = %s.toLowerCase();\n",$match_attr,$match_attr);
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if (str_contains($match_mod,'U'))
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$result .= sprintf("%s = %s.toUpperCase();\n",$match_attr,$match_attr);
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if (str_contains($match_mod,'A'))
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$result .= sprintf("%s = toAscii(%s);\n",$match_attr,$match_attr);
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// For debugging
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//$result .= sprintf("console.log('%s will return:'+%s);\n",$match_attr,$match_attr);
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// Reformat out output into JS variables
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$output = preg_replace('/'.preg_quote($m[0][$index],'/').'/','\'+'.$match_attr.'+\'',$output);
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}
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$result .= sprintf("put_attribute('%s','%s');\n",strtolower($attr),$output);
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$result .= "\n";
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return $result;
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}
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} |