--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mercurial/templater.py	Sun Feb 26 12:59:28 2006 -0800
@@ -0,0 +1,107 @@
+from demandload import demandload
+demandload(globals(), "cgi os re time urllib util")
+
+class templater(object):
+    def __init__(self, mapfile, filters={}, defaults={}):
+        self.cache = {}
+        self.map = {}
+        self.base = os.path.dirname(mapfile)
+        self.filters = filters
+        self.defaults = defaults
+
+        for l in file(mapfile):
+            m = re.match(r'(\S+)\s*=\s*"(.*)"$', l)
+            if m:
+                self.cache[m.group(1)] = m.group(2)
+            else:
+                m = re.match(r'(\S+)\s*=\s*(\S+)', l)
+                if m:
+                    self.map[m.group(1)] = os.path.join(self.base, m.group(2))
+                else:
+                    raise LookupError(_("unknown map entry '%s'") % l)
+
+    def __call__(self, t, **map):
+        m = self.defaults.copy()
+        m.update(map)
+        try:
+            tmpl = self.cache[t]
+        except KeyError:
+            tmpl = self.cache[t] = file(self.map[t]).read()
+        return self.template(tmpl, self.filters, **m)
+
+    def template(self, tmpl, filters={}, **map):
+        while tmpl:
+            m = re.search(r"#([a-zA-Z0-9]+)((%[a-zA-Z0-9]+)*)((\|[a-zA-Z0-9]+)*)#", tmpl)
+            if m:
+                yield tmpl[:m.start(0)]
+                v = map.get(m.group(1), "")
+                v = callable(v) and v(**map) or v
+
+                format = m.group(2)
+                fl = m.group(4)
+
+                if format:
+                    q = v.__iter__
+                    for i in q():
+                        lm = map.copy()
+                        lm.update(i)
+                        yield self(format[1:], **lm)
+
+                    v = ""
+
+                elif fl:
+                    for f in fl.split("|")[1:]:
+                        v = filters[f](v)
+
+                yield v
+                tmpl = tmpl[m.end(0):]
+            else:
+                yield tmpl
+                return
+
+def age(x):
+    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 = x[0]
+    delta = max(1, int(now - then))
+
+    scales = [["second", 1],
+              ["minute", 60],
+              ["hour", 3600],
+              ["day", 3600 * 24],
+              ["week", 3600 * 24 * 7],
+              ["month", 3600 * 24 * 30],
+              ["year", 3600 * 24 * 365]]
+
+    scales.reverse()
+
+    for t, s in scales:
+        n = delta / s
+        if n >= 2 or s == 1:
+            return fmt(t, n)
+
+def nl2br(text):
+    return text.replace('\n', '<br/>\n')
+
+def obfuscate(text):
+    return ''.join(['&#%d;' % ord(c) for c in text])
+
+common_filters = {
+    "escape": lambda x: cgi.escape(x, True),
+    "urlescape": urllib.quote,
+    "strip": lambda x: x.strip(),
+    "age": age,
+    "date": lambda x: util.datestr(x),
+    "addbreaks": nl2br,
+    "obfuscate": obfuscate,
+    "short": (lambda x: x[:12]),
+    "firstline": (lambda x: x.splitlines(1)[0]),
+    "permissions": (lambda x: x and "-rwxr-xr-x" or "-rw-r--r--"),
+    "rfc822date": lambda x: util.datestr(x, "%a, %d %b %Y %H:%M:%S"),
+    }