templatefilters.py
186 lines
| 5.4 KiB
| text/x-python
|
PythonLexer
/ mercurial / templatefilters.py
|
r5976 | # 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, incorporated herein by reference. | ||||
import cgi, re, os, time, urllib, textwrap | ||||
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r7948 | import util, templater, encoding | ||
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r5976 | |||
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] | ||||
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r7682 | if then > now: | ||
return 'in the future' | ||||
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r5976 | 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): | ||||
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r7948 | text = unicode(text, encoding.encoding, 'replace') | ||
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r5976 | 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.''' | ||||
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--" | ||||
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r6174 | def xmlescape(text): | ||
text = (text | ||||
.replace('&', '&') | ||||
.replace('<', '<') | ||||
.replace('>', '>') | ||||
.replace('"', '"') | ||||
.replace("'", ''')) # ' invalid in HTML | ||||
return re.sub('[\x00-\x08\x0B\x0C\x0E-\x1F]', ' ', text) | ||||
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r6691 | _escapes = [ | ||
('\\', '\\\\'), ('"', '\\"'), ('\t', '\\t'), ('\n', '\\n'), | ||||
('\r', '\\r'), ('\f', '\\f'), ('\b', '\\b'), | ||||
] | ||||
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): | ||||
for k, v in _escapes: | ||||
obj = obj.replace(k, v) | ||||
return '"%s"' % 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__) | ||||
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r5976 | filters = { | ||
"addbreaks": nl2br, | ||||
"basename": os.path.basename, | ||||
"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'), | ||||
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r6229 | "hgdate": lambda x: "%d %d" % x, | ||
"isodate": lambda x: util.datestr(x, '%Y-%m-%d %H:%M %1%2'), | ||||
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r6319 | "isodatesec": lambda x: util.datestr(x, '%Y-%m-%d %H:%M:%S %1%2'), | ||
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r5976 | "obfuscate": obfuscate, | ||
"permissions": permissions, | ||||
"person": person, | ||||
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r6229 | "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"), | ||||
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r5976 | "short": lambda x: x[:12], | ||
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r6134 | "shortdate": util.shortdate, | ||
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r5976 | "stringify": templater.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'), | ||||
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r6174 | "xmlescape": xmlescape, | ||
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r6691 | "json": json, | ||
} | ||||