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47 lines
1 KiB
PHP
47 lines
1 KiB
PHP
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#!/usr/bin/env php
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<?php
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require_once dirname(__FILE__).'/../__init_script__.php';
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$args = new PhutilArgumentParser($argv);
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$args->setTagline(pht('test context-free grammars'));
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$args->setSynopsis(<<<EOHELP
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**lipsum.php** __class__
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Generate output from a named context-free grammar.
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EOHELP
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);
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$args->parseStandardArguments();
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$args->parse(
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array(
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array(
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'name' => 'class',
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'wildcard' => true,
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),
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));
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$class = $args->getArg('class');
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if (count($class) !== 1) {
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$args->printHelpAndExit();
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}
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$class = reset($class);
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$symbols = id(new PhutilClassMapQuery())
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->setAncestorClass('PhutilContextFreeGrammar')
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->execute();
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$symbols = ipull($symbols, 'name', 'name');
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if (empty($symbols[$class])) {
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$available = implode(', ', array_keys($symbols));
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throw new PhutilArgumentUsageException(
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pht(
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"Class '%s' is not a defined, concrete subclass of %s. ".
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"Available classes are: %s",
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$class,
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'PhutilContextFreeGrammar',
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$available));
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}
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$object = newv($class, array());
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echo $object->generate()."\n";
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