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diff --git a/external/moin-parser.py b/external/moin-parser.py
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+"""
+    The Pygments MoinMoin Parser
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+    This is a MoinMoin parser plugin that renders source code to HTML via
+    Pygments; you need Pygments 0.7 or newer for this parser to work.
+
+    To use it, set the options below to match your setup and put this file in
+    the data/plugin/parser subdirectory of your Moin instance, and give it the
+    name that the parser directive should have. For example, if you name the
+    file ``code.py``, you can get a highlighted Python code sample with this
+    Wiki markup::
+
+        {{{
+        #!code python
+        [...]
+        }}}
+
+    Additionally, if you set ATTACHMENTS below to True, Pygments will also be
+    called for all attachments for whose filenames there is no other parser
+    registered.
+
+    You are responsible for including CSS rules that will map the Pygments CSS
+    classes to colors. You can output a stylesheet file with `pygmentize`, put
+    it into the `htdocs` directory of your Moin instance and then include it in
+    the `stylesheets` configuration option in the Moin config, e.g.::
+
+        stylesheets = [('screen', '/htdocs/pygments.css')]
+
+    If you do not want to do that and are willing to accept larger HTML
+    output, you can set the INLINESTYLES option below to True.
+
+    :copyright: Copyright 2006-2022 by the Pygments team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+# Options
+# ~~~~~~~
+
+# Set to True if you want to highlight attachments, in addition to
+# {{{ }}} blocks.
+ATTACHMENTS = True
+
+# Set to True if you want inline CSS styles instead of classes
+INLINESTYLES = False
+
+
+import sys
+
+from pygments import highlight
+from pygments.lexers import get_lexer_by_name, get_lexer_for_filename, TextLexer
+from pygments.formatters import HtmlFormatter
+from pygments.util import ClassNotFound
+
+
+# wrap lines in <span>s so that the Moin-generated line numbers work
+class MoinHtmlFormatter(HtmlFormatter):
+    def wrap(self, source, outfile):
+        for line in source:
+            yield 1, '<span class="line">' + line[1] + '</span>'
+
+htmlformatter = MoinHtmlFormatter(noclasses=INLINESTYLES)
+textlexer = TextLexer()
+codeid = [0]
+
+
+class Parser:
+    """
+    MoinMoin Pygments parser.
+    """
+    if ATTACHMENTS:
+        extensions = '*'
+    else:
+        extensions = []
+
+    Dependencies = []
+
+    def __init__(self, raw, request, **kw):
+        self.raw = raw
+        self.req = request
+        if "format_args" in kw:
+            # called from a {{{ }}} block
+            try:
+                self.lexer = get_lexer_by_name(kw['format_args'].strip())
+            except ClassNotFound:
+                self.lexer = textlexer
+            return
+        if "filename" in kw:
+            # called for an attachment
+            filename = kw['filename']
+        else:
+            # called for an attachment by an older moin
+            # HACK: find out the filename by peeking into the execution
+            #       frame which might not always work
+            try:
+                frame = sys._getframe(1)
+                filename = frame.f_locals['filename']
+            except:
+                filename = 'x.txt'
+        try:
+            self.lexer = get_lexer_for_filename(filename)
+        except ClassNotFound:
+            self.lexer = textlexer
+
+    def format(self, formatter):
+        codeid[0] += 1
+        id = "pygments_%s" % codeid[0]
+        w = self.req.write
+        w(formatter.code_area(1, id, start=1, step=1))
+        w(formatter.rawHTML(highlight(self.raw, self.lexer, htmlformatter)))
+        w(formatter.code_area(0, id))