Namespace added to `as` keyword

[ziodave]

The original file ./vendor/pear/pear_exception/PEAR/Exception.php:195 has the following line:

foreach (self::$_observers as $func) {

The replaced file ./classes/dependencies/pear/pear_exception/PEAR/Exception.php:195 has the following line:

foreach (self::$_observers Project_as $func) {

It looks as if as is replaced with Project_as.

This is the composer.json:

{
  "autoload": {
    "classmap": [
      "classes/dependencies/"
    ]
  },
  "require-dev": {
    "coenjacobs/mozart": "dev-master",
    "cweagans/composer-patches": "^1.6"
  },
  "extra": {
    "patches": {
      "coenjacobs/mozart": {
        "Replace parent packages over full tree of dependencies.": "https://github.com/coenjacobs/mozart/pull/82.patch",
        "exclude_files": "https://github.com/coenjacobs/mozart/pull/83.patch",
        "Improve ClassmapReplacer prefixing": "https://github.com/coenjacobs/mozart/pull/85.patch"
      }
    },
    "mozart": {
      "dep_namespace": "Project\\Dependencies\\",
      "dep_directory": "/src/Dependencies/",
      "classmap_directory": "/classes/dependencies/",
      "classmap_prefix": "Project_",
      "delete_vendor_directories": false,
      "exclude_files_from_copy": [
        "/\\.*composer\\.json/"
      ],
      "override_autoload": {
        "pear/net_url2": {
          "classmap": [
            "Net/"
          ]
        },
        "pear/mail_mime": {
          "classmap": [
            "Mail/"
          ]
        },
        "pear/console_getopt": {
          "classmap": [
            "Console/"
          ]
        },
        "pear/pear-core-minimal": {
          "classmap": [
            "src/"
          ]
        }
      }
    }
  },
  "require": {
    "microsoft/windowsazure": "*"
  },
  "repositories": [
    {
      "type": "git",
      "url": "https://github.com/coenjacobs/mozart.git"
    }
  ]
}

[ziodave]

I am unable to understand where that happens. The regex (?:[abstract]*class |interface )([a-zA-Z0-9_\x7f-\xff]+)\s?(?:\n*|{| extends| implements) doesn't seem to be the culprit:

[ziodave]

Actually the issue appears to be there, after adding some logging to ./vendor/coenjacobs/mozart/src/Replace:15/ClassmapReplacer.php:

        return preg_replace_callback(
            '/(?:[abstract]*class |interface )([a-zA-Z0-9_\x7f-\xff]+)\s?(?:\n*|{| extends| implements)/',
            function ($matches) {
                $replace = $this->classmap_prefix . $matches[1];
                error_log( 'Replacing ' . $matches[1] . ' with ' . $replace . ' [' . $matches[0] . ']');
                $this->saveReplacedClass($matches[1], $replace);
                return str_replace($matches[1], $replace, $matches[0]);
            },
            $contents
        );

I can see, but it's as if the line is changed before the regex is applied, since the actual line is foreach (self::$_observers as $func), not class as:

Replacing "as" with "Project_as" [class as ]

[ziodave]

Ok, I can see what happens:

In comments there's a class as which is interpreted as a class name and later replaced.

[ziodave]

I revised the regular expression as follows:

/^(?!\s*[*\/]).*(?:(?:abstract)*class |interface )([a-zA-Z0-9_\x7f-\xff]+)\s?(?:\n*|{| extends| implements)/m

This new part ^(?!\s*[*\/]).* (along with the multiline modifier) will ensure that the line doesn't start with * or with / which signal a comment line.

I also changed [abstract] to (?:abstract) since [abstract] would match any sequence of those characters (e.g. abb):

It fixes the issue for me. Let me know if you'd like me to do a PR.

[ziodave]

Another edgy case:

[ziodave]

This seems to work for me:

/^(?!\s*[*\/])\s*(?:(?:abstract\s+)?class |interface )([a-zA-Z0-9_\x7f-\xff]+)\s?(?:\n*|{| extends| implements)/m

I changed (?!\s*[*\/]).* to (?!\s*[*\/])\s*, i.e. only white space characters allowed until one of abstract, class or interface is found.

[BrianHenryIE]

I think

$myvar = 123; class Pear { };

is valid too. So the the beginning ^ should maybe be ^(?:.*;)? I tested a little but I really need to read some documentation to check I'm using the right syntax.

Definitely do a PR. The tests for regex are pretty easy to write. If you don't, I'll take your work and comments here and type it up in the next couple of weeks.

[tn3rb]

getting same thing with to

	"extra": {
		"mozart": {
			"dep_namespace": "MyVendor\\Dependencies\\",
			"dep_directory": "/Dependencies/",
			"classmap_directory": "/Dependencies/autoload/",
			"classmap_prefix": "EECD_",
			"packages": [
				"dompdf/dompdf",
				"endyjasmi/cuid",
				"tijsverkoyen/css-to-inline-styles",
				"jaybizzle/crawler-detect",
				"wp-graphql/wp-graphql"
			],
			"delete_vendor_directories": true
		}
	},
	"scripts": {
		"post-install-cmd": [
			"\"vendor/bin/mozart\" compose",
			"composer dump-autoload"
		],
		"post-update-cmd": [
			"\"vendor/bin/mozart\" compose",
			"composer dump-autoload"
		]
	}