mercurial/templatefilters.py
author Nicolas Dumazet <nicdumz.commits@gmail.com>
Sun, 24 May 2009 18:43:05 +0900
changeset 8599 1f706b1b62f3
parent 8390 beae42f3d93b
child 8591 08c93b07f5ad
permissions -rw-r--r--
inotify: server: refactor updatestatus() * Instead of one entry point, use two entry points, updatefile() and deletefile(), both internally calling the helper function _updatestatus * Do not rely on TypeError to detect the type of oldstatus: use isinstance * The call updatestatus(wpath, None) in deleted() was a bit particular: because no osstat and no newstatus was given, the newstatus was determined using the data stored internally. To replace this exact behavior with the new code, one would use: root, fn = self.split(wpath) d = self.dir(self.tree, root) self.filedeleted(wpath, d.get(fn)) This, however, duplicates code with _updatestatus(), which led us to an interesting question: why are we basing ourselves on repowatcher data to update the status, where everywhere else, we are comparing against dirsate? There is no reason to do this, which is why the new code is: self.filedeleted(wpath, self.repo.dirstate[wpath]) Incidentally, after this, the test for issue1371 passes again.
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# template-filters.py - common template expansion filters
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#
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# Copyright 2005-2008 Matt Mackall <mpm@selenic.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2, incorporated herein by reference.
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import cgi, re, os, time, urllib, textwrap
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import util, encoding
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def stringify(thing):
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    '''turn nested template iterator into string.'''
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    if hasattr(thing, '__iter__') and not isinstance(thing, str):
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        return "".join([stringify(t) for t in thing if t is not None])
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    return str(thing)
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agescales = [("second", 1),
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             ("minute", 60),
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             ("hour", 3600),
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             ("day", 3600 * 24),
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             ("week", 3600 * 24 * 7),
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             ("month", 3600 * 24 * 30),
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             ("year", 3600 * 24 * 365)]
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agescales.reverse()
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def age(date):
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    '''turn a (timestamp, tzoff) tuple into an age string.'''
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    def plural(t, c):
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        if c == 1:
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            return t
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        return t + "s"
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    def fmt(t, c):
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        return "%d %s" % (c, plural(t, c))
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    now = time.time()
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    then = date[0]
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    if then > now:
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        return 'in the future'
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    delta = max(1, int(now - then))
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    for t, s in agescales:
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        n = delta / s
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        if n >= 2 or s == 1:
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            return fmt(t, n)
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para_re = None
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space_re = None
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def fill(text, width):
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    '''fill many paragraphs.'''
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    global para_re, space_re
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    if para_re is None:
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        para_re = re.compile('(\n\n|\n\\s*[-*]\\s*)', re.M)
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        space_re = re.compile(r'  +')
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    def findparas():
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        start = 0
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        while True:
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            m = para_re.search(text, start)
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            if not m:
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                w = len(text)
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                while w > start and text[w-1].isspace(): w -= 1
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                yield text[start:w], text[w:]
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                break
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            yield text[start:m.start(0)], m.group(1)
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            start = m.end(1)
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    return "".join([space_re.sub(' ', textwrap.fill(para, width)) + rest
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                    for para, rest in findparas()])
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def firstline(text):
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    '''return the first line of text'''
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    try:
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        return text.splitlines(1)[0].rstrip('\r\n')
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    except IndexError:
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        return ''
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def nl2br(text):
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    '''replace raw newlines with xhtml line breaks.'''
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    return text.replace('\n', '<br/>\n')
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def obfuscate(text):
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    text = unicode(text, encoding.encoding, 'replace')
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    return ''.join(['&#%d;' % ord(c) for c in text])
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def domain(author):
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    '''get domain of author, or empty string if none.'''
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    f = author.find('@')
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    if f == -1: return ''
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    author = author[f+1:]
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    f = author.find('>')
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    if f >= 0: author = author[:f]
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    return author
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def person(author):
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    '''get name of author, or else username.'''
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    f = author.find('<')
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    if f == -1: return util.shortuser(author)
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    return author[:f].rstrip()
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def indent(text, prefix):
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    '''indent each non-empty line of text after first with prefix.'''
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    lines = text.splitlines()
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    num_lines = len(lines)
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    def indenter():
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        for i in xrange(num_lines):
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            l = lines[i]
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            if i and l.strip():
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                yield prefix
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            yield l
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            if i < num_lines - 1 or text.endswith('\n'):
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                yield '\n'
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    return "".join(indenter())
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def permissions(flags):
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    if "l" in flags:
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        return "lrwxrwxrwx"
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    if "x" in flags:
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        return "-rwxr-xr-x"
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    return "-rw-r--r--"
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def xmlescape(text):
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    text = (text
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            .replace('&', '&amp;')
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            .replace('<', '&lt;')
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            .replace('>', '&gt;')
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            .replace('"', '&quot;')
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            .replace("'", '&#39;')) # &apos; invalid in HTML
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    return re.sub('[\x00-\x08\x0B\x0C\x0E-\x1F]', ' ', text)
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_escapes = [
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    ('\\', '\\\\'), ('"', '\\"'), ('\t', '\\t'), ('\n', '\\n'),
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    ('\r', '\\r'), ('\f', '\\f'), ('\b', '\\b'),
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]
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def jsonescape(s):
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    for k, v in _escapes:
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        s = s.replace(k, v)
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    return s
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def json(obj):
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    if obj is None or obj is False or obj is True:
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        return {None: 'null', False: 'false', True: 'true'}[obj]
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    elif isinstance(obj, int) or isinstance(obj, float):
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        return str(obj)
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    elif isinstance(obj, str):
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        return '"%s"' % jsonescape(obj)
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    elif isinstance(obj, unicode):
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        return json(obj.encode('utf-8'))
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    elif hasattr(obj, 'keys'):
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        out = []
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        for k, v in obj.iteritems():
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            s = '%s: %s' % (json(k), json(v))
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            out.append(s)
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        return '{' + ', '.join(out) + '}'
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    elif hasattr(obj, '__iter__'):
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        out = []
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        for i in obj:
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            out.append(json(i))
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        return '[' + ', '.join(out) + ']'
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    else:
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        raise TypeError('cannot encode type %s' % obj.__class__.__name__)
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def stripdir(text):
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    '''Treat the text as path and strip a directory level, if possible.'''
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    dir = os.path.dirname(text)
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    if dir == "":
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        return os.path.basename(text)
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    else:
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        return dir
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def nonempty(str):
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    return str or "(none)"
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filters = {
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    "addbreaks": nl2br,
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    "basename": os.path.basename,
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    "stripdir": stripdir,
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    "age": age,
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    "date": lambda x: util.datestr(x),
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    "domain": domain,
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    "email": util.email,
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    "escape": lambda x: cgi.escape(x, True),
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    "fill68": lambda x: fill(x, width=68),
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    "fill76": lambda x: fill(x, width=76),
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    "firstline": firstline,
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    "tabindent": lambda x: indent(x, '\t'),
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    "hgdate": lambda x: "%d %d" % x,
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    "isodate": lambda x: util.datestr(x, '%Y-%m-%d %H:%M %1%2'),
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    "isodatesec": lambda x: util.datestr(x, '%Y-%m-%d %H:%M:%S %1%2'),
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    "json": json,
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    "jsonescape": jsonescape,
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    "nonempty": nonempty,
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    "obfuscate": obfuscate,
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    "permissions": permissions,
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    "person": person,
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    "rfc822date": lambda x: util.datestr(x, "%a, %d %b %Y %H:%M:%S %1%2"),
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    "rfc3339date": lambda x: util.datestr(x, "%Y-%m-%dT%H:%M:%S%1:%2"),
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    "short": lambda x: x[:12],
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    "shortdate": util.shortdate,
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    "stringify": stringify,
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    "strip": lambda x: x.strip(),
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    "urlescape": lambda x: urllib.quote(x),
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    "user": lambda x: util.shortuser(x),
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    "stringescape": lambda x: x.encode('string_escape'),
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    "xmlescape": xmlescape,
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}