Mercurial > public > mercurial-scm > hg-stable

annotate mercurial/templater.py @ 1899:888d298ddb91

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many small changes to templater. get string code to parse escapes. uses eval now, should parse strings itself soon. let caller check if fragment is defined using "in". make templatepath take optional file name.
author Vadim Gelfer <vadim.gelfer@gmail.com>
date Sun, 26 Feb 2006 20:53:37 -0800
parents 58b6784cf9f1
children f2815605186e
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rev   line source
1896
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
1 from demandload import demandload
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Vadim Gelfer <vadim.gelfer@gmail.com>
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2 demandload(globals(), "cgi os re time urllib util")
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3
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4 class templater(object):
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Vadim Gelfer <vadim.gelfer@gmail.com>
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5 def __init__(self, mapfile, filters={}, defaults={}):
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6 self.cache = {}
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Vadim Gelfer <vadim.gelfer@gmail.com>
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7 self.map = {}
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8 self.base = os.path.dirname(mapfile)
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9 self.filters = filters
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10 self.defaults = defaults
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11
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12 for l in file(mapfile):
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parents: 1897
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13 m = re.match(r'(\S+)\s*=\s*(".*"|\'.*\')$', l)
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14 if m:
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parents: 1897
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15 self.cache[m.group(1)] = eval(m.group(2))
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16 else:
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17 m = re.match(r'(\S+)\s*=\s*(\S+)', l)
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18 if m:
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19 self.map[m.group(1)] = os.path.join(self.base, m.group(2))
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20 else:
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21 raise LookupError(_("unknown map entry '%s'") % l)
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22
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23 def __contains__(self, key):
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24 return key in self.cache
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25
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26 def __call__(self, t, **map):
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27 m = self.defaults.copy()
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28 m.update(map)
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29 try:
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30 tmpl = self.cache[t]
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31 except KeyError:
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32 tmpl = self.cache[t] = file(self.map[t]).read()
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33 return self.template(tmpl, self.filters, **m)
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34
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35 def template(self, tmpl, filters={}, **map):
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36 while tmpl:
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37 m = re.search(r"#([a-zA-Z_][a-zA-Z0-9_]*)"
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38 r"((%[a-zA-Z_][a-zA-Z0-9_]*)*)"
888d298ddb91 many small changes to templater.
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parents: 1897
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39 r"((\|[a-zA-Z_][a-zA-Z0-9_]*)*)#", tmpl)
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40 if m:
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41 yield tmpl[:m.start(0)]
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42 v = map.get(m.group(1), "")
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43 v = callable(v) and v(**map) or v
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44
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45 format = m.group(2)
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46 fl = m.group(4)
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47
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48 if format:
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49 q = v.__iter__
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50 for i in q():
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51 lm = map.copy()
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52 lm.update(i)
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53 yield self(format[1:], **lm)
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54
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55 v = ""
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56
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57 elif fl:
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58 for f in fl.split("|")[1:]:
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59 v = filters[f](v)
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60
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61 yield v
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62 tmpl = tmpl[m.end(0):]
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63 else:
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64 yield tmpl
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65 return
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66
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67 def age(x):
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68 def plural(t, c):
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69 if c == 1:
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70 return t
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71 return t + "s"
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72 def fmt(t, c):
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73 return "%d %s" % (c, plural(t, c))
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74
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75 now = time.time()
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76 then = x[0]
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77 delta = max(1, int(now - then))
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78
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79 scales = [["second", 1],
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80 ["minute", 60],
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81 ["hour", 3600],
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82 ["day", 3600 * 24],
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83 ["week", 3600 * 24 * 7],
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84 ["month", 3600 * 24 * 30],
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85 ["year", 3600 * 24 * 365]]
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86
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87 scales.reverse()
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88
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89 for t, s in scales:
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90 n = delta / s
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91 if n >= 2 or s == 1:
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92 return fmt(t, n)
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93
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94 def nl2br(text):
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95 return text.replace('\n', '<br/>\n')
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96
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97 def obfuscate(text):
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98 return ''.join(['&#%d;' % ord(c) for c in text])
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99
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100 common_filters = {
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101 "escape": lambda x: cgi.escape(x, True),
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102 "urlescape": urllib.quote,
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103 "strip": lambda x: x.strip(),
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104 "age": age,
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105 "date": lambda x: util.datestr(x),
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106 "addbreaks": nl2br,
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107 "obfuscate": obfuscate,
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108 "short": (lambda x: x[:12]),
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109 "firstline": (lambda x: x.splitlines(1)[0]),
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110 "permissions": (lambda x: x and "-rwxr-xr-x" or "-rw-r--r--"),
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111 "rfc822date": lambda x: util.datestr(x, "%a, %d %b %Y %H:%M:%S"),
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Vadim Gelfer <vadim.gelfer@gmail.com>
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112 }
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parents: 1896
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113
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parents: 1897
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114 def templatepath(name=None):
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 1897
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115 for f in 'templates', '../templates':
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parents: 1897
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116 fl = f.split('/')
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parents: 1897
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117 if name: fl.append(name)
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parents: 1897
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118 p = os.path.join(os.path.dirname(__file__), *fl)
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parents: 1897
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119 if (name and os.path.exists(p)) or os.path.isdir(p):
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parents: 1896
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120 return os.path.normpath(p)