Mercurial > hg
view mercurial/templatefilters.py @ 8699:f364cc1d98c4
commit: apply force flag without files
author | Matt Mackall <mpm@selenic.com> |
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date | Mon, 01 Jun 2009 13:51:21 -0500 |
parents | 3d53820381cb |
children | 0001e49f1c11 |
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# 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('&', '&') .replace('<', '<') .replace('>', '>') .replace('"', '"') .replace("'", ''')) # ' 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, }