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AcceptSuggestionAction.php (1.12 KB)

AcceptSuggestionWordAction.php (1.43 KB)

ActionInterface.php (848 B)

ClearBufferAction.php (2.12 KB)

ClearScreenAction.php (975 B)

DedentLeadingIndentationAction.php (1.99 KB)

DeleteBackwardCharAction.php (818 B)

DeleteBracketPairAction.php (1016 B)

DeleteForwardAction.php (815 B)

ExitIfEmptyAction.php (965 B)

ExpandHistoryOnTabAction.php (1.41 KB)

FallbackAction.php (1.85 KB)

HistoryExpansionAction.php (9.65 KB)

InsertCloseBracketAction.php (2.26 KB)

InsertIndentOnTabAction.php (1.23 KB)

InsertLineBreakAction.php (1.56 KB)

InsertLineBreakOnIncompleteStatementAction.php (1.53 KB)

InsertLineBreakOnUnclosedBracketsAction.php (1.46 KB)

InsertOpenBracketAction.php (2.78 KB)

InsertQuoteAction.php (1.3 KB)

KillLineAction.php (801 B)

KillTokenAction.php (993 B)

KillWholeLineAction.php (816 B)

KillWordAction.php (803 B)

MoveLeftAction.php (789 B)

MoveRightAction.php (793 B)

MoveToEndAction.php (824 B)

MoveToStartAction.php (1.33 KB)

MoveTokenLeftAction.php (1.03 KB)

MoveTokenRightAction.php (1.02 KB)

MoveWordLeftAction.php (880 B)

MoveWordRightAction.php (875 B)

NextHistoryAction.php (1.74 KB)

PreviousHistoryAction.php (2.12 KB)

RejectSyntaxErrorAction.php (2.23 KB)

ReverseSearchAction.php (1.21 KB)

SelfInsertAction.php (1.01 KB)

SubmitLineAction.php (1.21 KB)

TabAction.php (16.99 KB)

Edit: RejectSyntaxErrorAction.php

<?php

/*
 * This file is part of Psy Shell.
 *
 * (c) 2012-2026 Justin Hileman
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Psy\Readline\Interactive\Actions;

use Psy\Readline\Interactive\Input\Buffer;
use Psy\Readline\Interactive\Readline;
use Psy\Readline\Interactive\Terminal;

/**
 * Reject submit when the buffer has an unrecoverable syntax error.
 *
 * Sets the input frame to error mode and rings the bell so the user can
 * fix the error in-place, rather than inserting a newline or submitting.
 */
class RejectSyntaxErrorAction implements ActionInterface
{
    /**
     * {@inheritdoc}
     */
    public function execute(Buffer $buffer, Terminal $terminal, Readline $readline): bool
    {
        if (!$buffer->hasUnrecoverableSyntaxError()) {
            return false;
        }

$line = $buffer->getText();
        if ($readline->isCommand($line) && !$readline->isInOpenStringOrComment($line)) {
            return false;
        }

// Don't reject when there are truly unclosed brackets before
        // cursor (more opens than closes). In that case, the user is
        // still typing inside a bracket pair and the unclosed-brackets
        // action should handle continuation instead.
        if ($this->hasOpenBracketsBeforeCursor($buffer)) {
            return false;
        }

$readline->setInputFrameError(true);
        $terminal->bell();

return true;
    }

/**
     * Check if text before cursor has more opening brackets than closing.
     */
    private function hasOpenBracketsBeforeCursor(Buffer $buffer): bool
    {
        $text = $buffer->getBeforeCursor();
        if (\trim($text) === '') {
            return false;
        }

$tokens = @\token_get_all('<?php '.$text);
        $depth = 0;
        $pairs = ['(' => 1, ')' => -1, '[' => 1, ']' => -1, '{' => 1, '}' => -1];

foreach ($tokens as $token) {
            if (\is_string($token) && isset($pairs[$token])) {
                $depth += $pairs[$token];
            }
        }

return $depth > 0;
    }

/**
     * {@inheritdoc}
     */
    public function getName(): string
    {
        return 'reject-syntax-error';
    }
}