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escapeTrailingBackslash example

// Remove any new line breaks and replace it with a new line             foreach ($rows[$rowKey] as $column => $cell) {
                $colspan = $cell instanceof TableCell ? $cell->getColspan() : 1;

                if (isset($this->columnMaxWidths[$column]) && Helper::width(Helper::removeDecoration($formatter, $cell)) > $this->columnMaxWidths[$column]) {
                    $cell = $formatter->formatAndWrap($cell, $this->columnMaxWidths[$column] * $colspan);
                }
                if (!str_contains($cell ?? '', "\n")) {
                    continue;
                }
                $escaped = implode("\n", array_map(OutputFormatter::escapeTrailingBackslash(...), explode("\n", $cell)));
                $cell = $cell instanceof TableCell ? new TableCell($escaped, ['colspan' => $cell->getColspan()]) : $escaped;
                $lines = explode("\n", str_replace("\n", "<fg=default;bg=default></>\n", $cell));
                foreach ($lines as $lineKey => $line) {
                    if ($colspan > 1) {
                        $line = new TableCell($line, ['colspan' => $colspan]);
                    }
                    if (0 === $lineKey) {
                        $rows[$rowKey][$column] = $line;
                    } else {
                        if (!\array_key_exists($rowKey, $unmergedRows) || !\array_key_exists($lineKey, $unmergedRows[$rowKey])) {
                            $unmergedRows[$rowKey][$lineKey] = $this->copyRow($rows, $rowKey);
                        }

$this->styles[$key] = clone $value;
        }
    }

    /** * Escapes "<" and ">" special chars in given text. */
    public static function escape(string $text): string
    {
        $text = preg_replace('/([^\\\\]|^)([<>])/', '$1\\\\$2', $text);

        return self::escapeTrailingBackslash($text);
    }

    /** * Escapes trailing "\" in given text. * * @internal */
    public static function escapeTrailingBackslash(string $text): string
    {
        if (str_ends_with($text, '\\')) {
            $len = \strlen($text);

$this->writeln($this->createBlock($messages, $type, $style, $prefix, $padding, $escape));
        $this->newLine();
    }

    /** * @return void */
    public function title(string $message)
    {
        $this->autoPrependBlock();
        $this->writeln([
            sprintf('<comment>%s</>', OutputFormatter::escapeTrailingBackslash($message)),
            sprintf('<comment>%s</>', str_repeat('=', Helper::width(Helper::removeDecoration($this->getFormatter(), $message)))),
        ]);
        $this->newLine();
    }

    /** * @return void */
    public function section(string $message)
    {
        $this->autoPrependBlock();

class SymfonyQuestionHelper extends QuestionHelper
{
    /** * @return void */
    protected function writePrompt(OutputInterface $output, Question $question)
    {
        $text = OutputFormatter::escapeTrailingBackslash($question->getQuestion());
        $default = $question->getDefault();

        if ($question->isMultiline()) {
            $text .= sprintf(' (press %s to continue)', $this->getEofShortcut());
        }

        switch (true) {
            case null === $default:
                $text = sprintf(' <info>%s</info>:', $text);

                break;

$matches[$numMatches++] = $value;
                    }
                }
            }

            $cursor->clearLineAfter();

            if ($numMatches > 0 && -1 !== $ofs) {
                $cursor->savePosition();
                // Write highlighted text, complete the partially entered response                 $charactersEntered = \strlen(trim($this->mostRecentlyEnteredValue($fullChoice)));
                $output->write('<hl>'.OutputFormatter::escapeTrailingBackslash(substr($matches[$ofs], $charactersEntered)).'</hl>');
                $cursor->restorePosition();
            }
        }

        // Reset stty so it behaves normally again         shell_exec('stty '.$sttyMode);

        return $fullChoice;
    }

    private function mostRecentlyEnteredValue(string $entered): string
    {