Mercurial > p > roundup > code

annotate roundup/template_parser.py @ 931:3dba266f94d8

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
this oughta be better
author Richard Jones <richard@users.sourceforge.net>
date Fri, 02 Aug 2002 04:43:53 +0000
parents
children a43fa69c1b70
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
931
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
1 import htmllib, formatter
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
2
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
3 class Require:
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
4 ''' Encapsulates a parsed <require attributes>...[<else>...]</require>
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
5 '''
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
6 def __init__(self, attributes):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
7 self.attributes = attributes
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
8 self.current = self.ok = []
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
9 self.fail = []
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
10 def __len__(self):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
11 return len(self.current)
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
12 def __getitem__(self, n):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
13 return self.current[n]
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
14 def __setitem__(self, n, data):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
15 self.current[n] = data
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
16 def append(self, data):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
17 self.current.append(data)
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
18 def elseMode(self):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
19 self.current = self.fail
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
20
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
21 class Display:
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
22 ''' Encapsulates a parsed <display attributes>
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
23 '''
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
24 def __init__(self, attributes):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
25 self.attributes = attributes
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
26
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
27 class Property:
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
28 ''' Encapsulates a parsed <property attributes>
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
29 '''
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
30 def __init__(self, attributes):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
31 self.attributes = attributes
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
32
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
33 class RoundupTemplateParser(htmllib.HTMLParser):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
34 ''' Parse Roundup's HTML template structure into a list of components:
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
35
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
36 'string': this is just plain data to be displayed
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
37 Display : instances indicate that display functions are to be called
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
38 Require : if/else style check using the conditions in the attributes,
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
39 displaying the "ok" list of components or "fail" list
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
40
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
41 '''
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
42 def __init__(self):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
43 htmllib.HTMLParser.__init__(self, formatter.NullFormatter())
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
44 self.current = self.structure = []
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
45 self.stack = []
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
46
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
47 def handle_data(self, data):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
48 self.append_data(data)
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
49
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
50 def append_data(self, data):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
51 if self.current and isinstance(self.current[-1], type('')):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
52 self.current[-1] = self.current[-1] + data
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
53 else:
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
54 self.current.append(data)
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
55
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
56 def unknown_starttag(self, tag, attributes):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
57 s = ''
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
58 s = s + '<%s' % tag
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
59 for name, value in attributes:
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
60 s = s + ' %s="%s"' % (name, value)
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
61 s = s + '>'
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
62 self.append_data(s)
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
63
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
64 def handle_starttag(self, tag, method, attributes):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
65 if tag in ('require', 'else', 'display', 'property'):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
66 method(attributes)
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
67 else:
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
68 self.unknown_starttag(tag, attributes)
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
69
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
70 def unknown_endtag(self, tag):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
71 if tag == 'require':
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
72 self.current = self.stack.pop()
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
73 else:
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
74 self.append_data('</%s>'%tag)
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
75
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
76 def handle_endtag(self, tag, method):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
77 self.unknown_endtag(tag)
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
78
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
79 def close(self):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
80 htmllib.HTMLParser.close(self)
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
81
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
82 def do_display(self, attributes):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
83 self.current.append(Display(attributes))
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
84
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
85 def do_property(self, attributes):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
86 self.current.append(Property(attributes))
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
87
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
88 def do_require(self, attributes):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
89 r = Require(attributes)
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
90 self.current.append(r)
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
91 self.stack.append(self.current)
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
92 self.current = r
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
93
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
94 def do_else(self, attributes):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
95 self.current.elseMode()
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
96
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
97 def display(structure, indent=''):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
98 ''' Pretty-print the parsed structure for debugging
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
99 '''
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
100 for entry in structure:
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
101 if isinstance(entry, type('')):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
102 print "%s%r"%(indent, entry[:50])
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
103 elif isinstance(entry, Require):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
104 print '%sTEST: %r'%(indent, entry.attributes)
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
105 print '%sOK...'%indent
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
106 display(entry.ok, indent+' ')
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
107 if entry.fail:
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
108 print '%sFAIL...'%indent
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
109 display(entry.fail, indent+' ')
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
110 elif isinstance(entry, Display):
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
111 print '%sDISPLAY: %r'%(indent, entry.attributes)
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
112
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
113 if __name__ == '__main__':
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
114 import sys
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
115 parser = RoundupTemplateParser()
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
116 parser.feed(open(sys.argv[1], 'r').read())
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
117 display(parser.structure)
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
118
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
119 #
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
120 # $Log: not supported by cvs2svn $
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
121 #
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
122 # vim: set filetype=python ts=4 sw=4 et si
3dba266f94d8 this oughta be better
Richard Jones <richard@users.sourceforge.net>
parents:
diff changeset
123
Roundup Issue Tracker: http://roundup-tracker.org/