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php/PHP_CodeSniffer/src/Util/Common.php  view on Meta::CPAN

            $eolChar = "\n";
        } else {
            $eolChar = $matches[0];
        }

        return $eolChar;

    }//end detectLineEndings()


    /**
     * Check if STDIN is a TTY.
     *
     * @return boolean
     */
    public static function isStdinATTY()
    {
        // The check is slow (especially calling `tty`) so we static
        // cache the result.
        static $isTTY = null;

        if ($isTTY !== null) {
            return $isTTY;
        }

        if (defined('STDIN') === false) {
            return false;
        }

        // If PHP has the POSIX extensions we will use them.
        if (function_exists('posix_isatty') === true) {
            $isTTY = (posix_isatty(STDIN) === true);
            return $isTTY;
        }

        // Next try is detecting whether we have `tty` installed and use that.
        if (defined('PHP_WINDOWS_VERSION_PLATFORM') === true) {
            $devnull = 'NUL';
            $which   = 'where';
        } else {
            $devnull = '/dev/null';
            $which   = 'which';
        }

        $tty = trim(shell_exec("$which tty 2> $devnull"));
        if (empty($tty) === false) {
            exec("tty -s 2> $devnull", $output, $returnValue);
            $isTTY = ($returnValue === 0);
            return $isTTY;
        }

        // Finally we will use fstat.  The solution borrowed from
        // https://stackoverflow.com/questions/11327367/detect-if-a-php-script-is-being-run-interactively-or-not
        // This doesn't work on Mingw/Cygwin/... using Mintty but they
        // have `tty` installed.
        $type = [
            'S_IFMT'  => 0170000,
            'S_IFIFO' => 0010000,
        ];

        $stat  = fstat(STDIN);
        $mode  = ($stat['mode'] & $type['S_IFMT']);
        $isTTY = ($mode !== $type['S_IFIFO']);

        return $isTTY;

    }//end isStdinATTY()


    /**
     * Prepares token content for output to screen.
     *
     * Replaces invisible characters so they are visible. On non-Windows
     * OSes it will also colour the invisible characters.
     *
     * @param string   $content The content to prepare.
     * @param string[] $exclude A list of characters to leave invisible.
     *                          Can contain \r, \n, \t and a space.
     *
     * @return string
     */
    public static function prepareForOutput($content, $exclude=[])
    {
        if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
            if (in_array("\r", $exclude, true) === false) {
                $content = str_replace("\r", '\r', $content);
            }

            if (in_array("\n", $exclude, true) === false) {
                $content = str_replace("\n", '\n', $content);
            }

            if (in_array("\t", $exclude, true) === false) {
                $content = str_replace("\t", '\t', $content);
            }
        } else {
            if (in_array("\r", $exclude, true) === false) {
                $content = str_replace("\r", "\033[30;1m\\r\033[0m", $content);
            }

            if (in_array("\n", $exclude, true) === false) {
                $content = str_replace("\n", "\033[30;1m\\n\033[0m", $content);
            }

            if (in_array("\t", $exclude, true) === false) {
                $content = str_replace("\t", "\033[30;1m\\t\033[0m", $content);
            }

            if (in_array(' ', $exclude, true) === false) {
                $content = str_replace(' ', "\033[30;1m·\033[0m", $content);
            }
        }//end if

        return $content;

    }//end prepareForOutput()


    /**
     * Returns true if the specified string is in the camel caps format.
     *