--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/upmana/mercurial/templatefilters.py	Fri Oct 30 22:21:40 2009 -0500
@@ -0,0 +1,211 @@
+# template-filters.py - common template expansion filters
+#
+# Copyright 2005-2008 Matt Mackall <mpm@selenic.com>
+#
+# This software may be used and distributed according to the terms of the
+# GNU General Public License version 2, incorporated herein by reference.
+
+import cgi, re, os, time, urllib, textwrap
+import util, encoding
+
+def stringify(thing):
+    '''turn nested template iterator into string.'''
+    if hasattr(thing, '__iter__') and not isinstance(thing, str):
+        return "".join([stringify(t) for t in thing if t is not None])
+    return str(thing)
+
+agescales = [("second", 1),
+             ("minute", 60),
+             ("hour", 3600),
+             ("day", 3600 * 24),
+             ("week", 3600 * 24 * 7),
+             ("month", 3600 * 24 * 30),
+             ("year", 3600 * 24 * 365)]
+
+agescales.reverse()
+
+def age(date):
+    '''turn a (timestamp, tzoff) tuple into an age string.'''
+
+    def plural(t, c):
+        if c == 1:
+            return t
+        return t + "s"
+    def fmt(t, c):
+        return "%d %s" % (c, plural(t, c))
+
+    now = time.time()
+    then = date[0]
+    if then > now:
+        return 'in the future'
+
+    delta = max(1, int(now - then))
+    for t, s in agescales:
+        n = delta / s
+        if n >= 2 or s == 1:
+            return fmt(t, n)
+
+para_re = None
+space_re = None
+
+def fill(text, width):
+    '''fill many paragraphs.'''
+    global para_re, space_re
+    if para_re is None:
+        para_re = re.compile('(\n\n|\n\\s*[-*]\\s*)', re.M)
+        space_re = re.compile(r'  +')
+
+    def findparas():
+        start = 0
+        while True:
+            m = para_re.search(text, start)
+            if not m:
+                w = len(text)
+                while w > start and text[w-1].isspace(): w -= 1
+                yield text[start:w], text[w:]
+                break
+            yield text[start:m.start(0)], m.group(1)
+            start = m.end(1)
+
+    return "".join([space_re.sub(' ', textwrap.fill(para, width)) + rest
+                    for para, rest in findparas()])
+
+def firstline(text):
+    '''return the first line of text'''
+    try:
+        return text.splitlines(1)[0].rstrip('\r\n')
+    except IndexError:
+        return ''
+
+def nl2br(text):
+    '''replace raw newlines with xhtml line breaks.'''
+    return text.replace('\n', '<br/>\n')
+
+def obfuscate(text):
+    text = unicode(text, encoding.encoding, 'replace')
+    return ''.join(['&#%d;' % ord(c) for c in text])
+
+def domain(author):
+    '''get domain of author, or empty string if none.'''
+    f = author.find('@')
+    if f == -1: return ''
+    author = author[f+1:]
+    f = author.find('>')
+    if f >= 0: author = author[:f]
+    return author
+
+def person(author):
+    '''get name of author, or else username.'''
+    if not '@' in author: return author
+    f = author.find('<')
+    if f == -1: return util.shortuser(author)
+    return author[:f].rstrip()
+
+def indent(text, prefix):
+    '''indent each non-empty line of text after first with prefix.'''
+    lines = text.splitlines()
+    num_lines = len(lines)
+    def indenter():
+        for i in xrange(num_lines):
+            l = lines[i]
+            if i and l.strip():
+                yield prefix
+            yield l
+            if i < num_lines - 1 or text.endswith('\n'):
+                yield '\n'
+    return "".join(indenter())
+
+def permissions(flags):
+    if "l" in flags:
+        return "lrwxrwxrwx"
+    if "x" in flags:
+        return "-rwxr-xr-x"
+    return "-rw-r--r--"
+
+def xmlescape(text):
+    text = (text
+            .replace('&', '&amp;')
+            .replace('<', '&lt;')
+            .replace('>', '&gt;')
+            .replace('"', '&quot;')
+            .replace("'", '&#39;')) # &apos; invalid in HTML
+    return re.sub('[\x00-\x08\x0B\x0C\x0E-\x1F]', ' ', text)
+
+_escapes = [
+    ('\\', '\\\\'), ('"', '\\"'), ('\t', '\\t'), ('\n', '\\n'),
+    ('\r', '\\r'), ('\f', '\\f'), ('\b', '\\b'),
+]
+
+def jsonescape(s):
+    for k, v in _escapes:
+        s = s.replace(k, v)
+    return s
+
+def json(obj):
+    if obj is None or obj is False or obj is True:
+        return {None: 'null', False: 'false', True: 'true'}[obj]
+    elif isinstance(obj, int) or isinstance(obj, float):
+        return str(obj)
+    elif isinstance(obj, str):
+        return '"%s"' % jsonescape(obj)
+    elif isinstance(obj, unicode):
+        return json(obj.encode('utf-8'))
+    elif hasattr(obj, 'keys'):
+        out = []
+        for k, v in obj.iteritems():
+            s = '%s: %s' % (json(k), json(v))
+            out.append(s)
+        return '{' + ', '.join(out) + '}'
+    elif hasattr(obj, '__iter__'):
+        out = []
+        for i in obj:
+            out.append(json(i))
+        return '[' + ', '.join(out) + ']'
+    else:
+        raise TypeError('cannot encode type %s' % obj.__class__.__name__)
+
+def stripdir(text):
+    '''Treat the text as path and strip a directory level, if possible.'''
+    dir = os.path.dirname(text)
+    if dir == "":
+        return os.path.basename(text)
+    else:
+        return dir
+
+def nonempty(str):
+    return str or "(none)"
+
+filters = {
+    "addbreaks": nl2br,
+    "basename": os.path.basename,
+    "stripdir": stripdir,
+    "age": age,
+    "date": lambda x: util.datestr(x),
+    "domain": domain,
+    "email": util.email,
+    "escape": lambda x: cgi.escape(x, True),
+    "fill68": lambda x: fill(x, width=68),
+    "fill76": lambda x: fill(x, width=76),
+    "firstline": firstline,
+    "tabindent": lambda x: indent(x, '\t'),
+    "hgdate": lambda x: "%d %d" % x,
+    "isodate": lambda x: util.datestr(x, '%Y-%m-%d %H:%M %1%2'),
+    "isodatesec": lambda x: util.datestr(x, '%Y-%m-%d %H:%M:%S %1%2'),
+    "json": json,
+    "jsonescape": jsonescape,
+    "localdate": lambda x: (x[0], util.makedate()[1]),
+    "nonempty": nonempty,
+    "obfuscate": obfuscate,
+    "permissions": permissions,
+    "person": person,
+    "rfc822date": lambda x: util.datestr(x, "%a, %d %b %Y %H:%M:%S %1%2"),
+    "rfc3339date": lambda x: util.datestr(x, "%Y-%m-%dT%H:%M:%S%1:%2"),
+    "short": lambda x: x[:12],
+    "shortdate": util.shortdate,
+    "stringify": stringify,
+    "strip": lambda x: x.strip(),
+    "urlescape": lambda x: urllib.quote(x),
+    "user": lambda x: util.shortuser(x),
+    "stringescape": lambda x: x.encode('string_escape'),
+    "xmlescape": xmlescape,
+}