+++ /dev/null
-<?php
-
-/*
- * This file is part of Psy Shell.
- *
- * (c) 2012-2017 Justin Hileman
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Psy\Input;
-
-use Symfony\Component\Console\Input\InputDefinition;
-use Symfony\Component\Console\Input\StringInput;
-
-/**
- * A StringInput subclass specialized for code arguments.
- */
-class ShellInput extends StringInput
-{
- private $hasCodeArgument = false;
-
- /**
- * Unlike the parent implementation's tokens, this contains an array of
- * token/rest pairs, so that code arguments can be handled while parsing.
- */
- private $tokenPairs;
- private $parsed;
-
- /**
- * Constructor.
- *
- * @param string $input An array of parameters from the CLI (in the argv format)
- */
- public function __construct($input)
- {
- parent::__construct($input);
-
- $this->tokenPairs = $this->tokenize($input);
- }
-
- /**
- * {@inheritdoc}
- *
- * @throws \InvalidArgumentException if $definition has CodeArgument before the final argument position
- */
- public function bind(InputDefinition $definition)
- {
- $hasCodeArgument = false;
-
- if ($definition->getArgumentCount() > 0) {
- $args = $definition->getArguments();
- $lastArg = array_pop($args);
- foreach ($args as $arg) {
- if ($arg instanceof CodeArgument) {
- $msg = sprintf('Unexpected CodeArgument before the final position: %s', $arg->getName());
- throw new \InvalidArgumentException($msg);
- }
- }
-
- if ($lastArg instanceof CodeArgument) {
- $hasCodeArgument = true;
- }
- }
-
- $this->hasCodeArgument = $hasCodeArgument;
-
- return parent::bind($definition);
- }
-
- /**
- * Tokenizes a string.
- *
- * The version of this on StringInput is good, but doesn't handle code
- * arguments if they're at all complicated. This does :)
- *
- * @param string $input The input to tokenize
- *
- * @return array An array of token/rest pairs
- *
- * @throws \InvalidArgumentException When unable to parse input (should never happen)
- */
- private function tokenize($input)
- {
- $tokens = array();
- $length = strlen($input);
- $cursor = 0;
- while ($cursor < $length) {
- if (preg_match('/\s+/A', $input, $match, null, $cursor)) {
- } elseif (preg_match('/([^="\'\s]+?)(=?)(' . StringInput::REGEX_QUOTED_STRING . '+)/A', $input, $match, null, $cursor)) {
- $tokens[] = array(
- $match[1] . $match[2] . stripcslashes(str_replace(array('"\'', '\'"', '\'\'', '""'), '', substr($match[3], 1, strlen($match[3]) - 2))),
- substr($input, $cursor),
- );
- } elseif (preg_match('/' . StringInput::REGEX_QUOTED_STRING . '/A', $input, $match, null, $cursor)) {
- $tokens[] = array(
- stripcslashes(substr($match[0], 1, strlen($match[0]) - 2)),
- substr($input, $cursor),
- );
- } elseif (preg_match('/' . StringInput::REGEX_STRING . '/A', $input, $match, null, $cursor)) {
- $tokens[] = array(
- stripcslashes($match[1]),
- substr($input, $cursor),
- );
- } else {
- // should never happen
- throw new \InvalidArgumentException(sprintf('Unable to parse input near "... %s ..."', substr($input, $cursor, 10)));
- }
-
- $cursor += strlen($match[0]);
- }
-
- return $tokens;
- }
-
- /**
- * Same as parent, but with some bonus handling for code arguments.
- */
- protected function parse()
- {
- $parseOptions = true;
- $this->parsed = $this->tokenPairs;
- while (null !== $tokenPair = array_shift($this->parsed)) {
- // token is what you'd expect. rest is the remainder of the input
- // string, including token, and will be used if this is a code arg.
- list($token, $rest) = $tokenPair;
-
- if ($parseOptions && '' === $token) {
- $this->parseShellArgument($token, $rest);
- } elseif ($parseOptions && '--' === $token) {
- $parseOptions = false;
- } elseif ($parseOptions && 0 === strpos($token, '--')) {
- $this->parseLongOption($token);
- } elseif ($parseOptions && '-' === $token[0] && '-' !== $token) {
- $this->parseShortOption($token);
- } else {
- $this->parseShellArgument($token, $rest);
- }
- }
- }
-
- /**
- * Parses an argument, with bonus handling for code arguments.
- *
- * @param string $token The current token
- * @param string $rest The remaining unparsed input, including the current token
- *
- * @throws \RuntimeException When too many arguments are given
- */
- private function parseShellArgument($token, $rest)
- {
- $c = count($this->arguments);
-
- // if input is expecting another argument, add it
- if ($this->definition->hasArgument($c)) {
- $arg = $this->definition->getArgument($c);
-
- if ($arg instanceof CodeArgument) {
- // When we find a code argument, we're done parsing. Add the
- // remaining input to the current argument and call it a day.
- $this->parsed = array();
- $this->arguments[$arg->getName()] = $rest;
- } else {
- $this->arguments[$arg->getName()] = $arg->isArray() ? array($token) : $token;
- }
-
- return;
- }
-
- // if last argument isArray(), append token to last argument
- if ($this->definition->hasArgument($c - 1) && $this->definition->getArgument($c - 1)->isArray()) {
- $arg = $this->definition->getArgument($c - 1);
- $this->arguments[$arg->getName()][] = $token;
-
- return;
- }
-
- // unexpected argument
- $all = $this->definition->getArguments();
- if (count($all)) {
- throw new \RuntimeException(sprintf('Too many arguments, expected arguments "%s".', implode('" "', array_keys($all))));
- }
-
- throw new \RuntimeException(sprintf('No arguments expected, got "%s".', $token));
- }
-
- // Everything below this is copypasta from ArgvInput private methods
-
- /**
- * Parses a short option.
- *
- * @param string $token The current token
- */
- private function parseShortOption($token)
- {
- $name = substr($token, 1);
-
- if (strlen($name) > 1) {
- if ($this->definition->hasShortcut($name[0]) && $this->definition->getOptionForShortcut($name[0])->acceptValue()) {
- // an option with a value (with no space)
- $this->addShortOption($name[0], substr($name, 1));
- } else {
- $this->parseShortOptionSet($name);
- }
- } else {
- $this->addShortOption($name, null);
- }
- }
-
- /**
- * Parses a short option set.
- *
- * @param string $name The current token
- *
- * @throws \RuntimeException When option given doesn't exist
- */
- private function parseShortOptionSet($name)
- {
- $len = strlen($name);
- for ($i = 0; $i < $len; $i++) {
- if (!$this->definition->hasShortcut($name[$i])) {
- throw new \RuntimeException(sprintf('The "-%s" option does not exist.', $name[$i]));
- }
-
- $option = $this->definition->getOptionForShortcut($name[$i]);
- if ($option->acceptValue()) {
- $this->addLongOption($option->getName(), $i === $len - 1 ? null : substr($name, $i + 1));
-
- break;
- } else {
- $this->addLongOption($option->getName(), null);
- }
- }
- }
-
- /**
- * Parses a long option.
- *
- * @param string $token The current token
- */
- private function parseLongOption($token)
- {
- $name = substr($token, 2);
-
- if (false !== $pos = strpos($name, '=')) {
- if (0 === strlen($value = substr($name, $pos + 1))) {
- // if no value after "=" then substr() returns "" since php7 only, false before
- // see http://php.net/manual/fr/migration70.incompatible.php#119151
- if (PHP_VERSION_ID < 70000 && false === $value) {
- $value = '';
- }
- array_unshift($this->parsed, array($value, null));
- }
- $this->addLongOption(substr($name, 0, $pos), $value);
- } else {
- $this->addLongOption($name, null);
- }
- }
-
- /**
- * Adds a short option value.
- *
- * @param string $shortcut The short option key
- * @param mixed $value The value for the option
- *
- * @throws \RuntimeException When option given doesn't exist
- */
- private function addShortOption($shortcut, $value)
- {
- if (!$this->definition->hasShortcut($shortcut)) {
- throw new \RuntimeException(sprintf('The "-%s" option does not exist.', $shortcut));
- }
-
- $this->addLongOption($this->definition->getOptionForShortcut($shortcut)->getName(), $value);
- }
-
- /**
- * Adds a long option value.
- *
- * @param string $name The long option key
- * @param mixed $value The value for the option
- *
- * @throws \RuntimeException When option given doesn't exist
- */
- private function addLongOption($name, $value)
- {
- if (!$this->definition->hasOption($name)) {
- throw new \RuntimeException(sprintf('The "--%s" option does not exist.', $name));
- }
-
- $option = $this->definition->getOption($name);
-
- if (null !== $value && !$option->acceptValue()) {
- throw new \RuntimeException(sprintf('The "--%s" option does not accept a value.', $name));
- }
-
- if (in_array($value, array('', null), true) && $option->acceptValue() && count($this->parsed)) {
- // if option accepts an optional or mandatory argument
- // let's see if there is one provided
- $next = array_shift($this->parsed);
- $nextToken = $next[0];
- if ((isset($nextToken[0]) && '-' !== $nextToken[0]) || in_array($nextToken, array('', null), true)) {
- $value = $nextToken;
- } else {
- array_unshift($this->parsed, $next);
- }
- }
-
- if (null === $value) {
- if ($option->isValueRequired()) {
- throw new \RuntimeException(sprintf('The "--%s" option requires a value.', $name));
- }
-
- if (!$option->isArray() && !$option->isValueOptional()) {
- $value = true;
- }
- }
-
- if ($option->isArray()) {
- $this->options[$name][] = $value;
- } else {
- $this->options[$name] = $value;
- }
- }
-}
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