Rework html.py to derive from list object
svn: r12213
This commit is contained in:
Gerald Britton
parent
5eb2cf728d
commit
d5f1247325
@ -1,4 +1,4 @@
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#
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#
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# Gramps - a GTK+/GNOME based genealogy program
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#
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# Copyright (C) 2009 Gerald Britton <gerald.britton@gmail.com>
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@ -23,16 +23,9 @@
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"""
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HTML operations.
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This module exports one class:
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This module exports one class and two functions.
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class Html: HTML generator
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"""
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#------------------------------------------------------------------------
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#
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# python modules
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#
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#------------------------------------------------------------------------
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import sys
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#------------------------------------------------------------------------
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#
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@ -42,16 +35,17 @@ import sys
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_XHTML1_STRICT = 'PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"\n' \
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'\t"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"'
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class Html(object):
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class Html(list):
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"""
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HTML class.
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"""
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__slots__ = ['items','indent','inline','end']
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#
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def __init__(self, tag='html', *args, **keywargs):
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super(Html, self).__init__([])
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attr, indent, close, inline = '', False, True, False
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for keyw, arg in keywargs.iteritems():
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if keyw in ['indent','close','inline'] and arg in [True,False,None]:
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if keyw in ['indent', 'close', 'inline'] and arg in [True, False, None]:
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exec '%s = %s' % (keyw, arg)
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elif keyw == 'attr':
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attr += ' ' + arg
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@ -60,51 +54,55 @@ class Html(object):
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else:
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attr += ' %s="%s"' % (keyw, arg)
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#
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if tag[0] == '<':
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self.items = (tag,)
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self.indent = indent
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self.inline = inline
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self.end = None
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return
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#
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begin = '<%s%s%s>' % (
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tag,
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attr,
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('' if close or close is None else ' /')
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)
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#
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self.items = (begin,) + args
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self.end = '</%s>' % tag if close else None
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self.indent = indent
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self.inline = inline
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self.end = close
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#
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def __add__(self, data):
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self.items += data if isinstance(data,tuple) else (data,)
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return self
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#
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append = extend = __add__
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#
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def index(self,data):
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i = 0
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for item in self.items:
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if item == data:
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return i
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i += 1
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if tag[0] == '<':
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self += [tag]
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self.end = None
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else:
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import sys
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raise ValueError, "Html.index: item not found", sys.exc_info()[2]
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begin = '<%s%s%s>' % (
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tag,
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attr,
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('' if close or close is None else ' /')
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)
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self += [begin] + list(args)
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super(Html, self).extend(['</%s>' % tag] if close else [])
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#
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def replace(self,data,newdata):
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i = self.index(data)
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self.items = self.items[:i] + (newdata,) + self.items[i+1:]
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#
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def __sub__(self, data):
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i = self.index(data)
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self.items = self.items[:i] + self.items[i+1:]
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def __add__(self, value):
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if isinstance(value, Html) or not hasattr(value, '__iter__'):
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value = [value]
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index = len(self) - 1 if self.end else 0
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self[index:index] = value
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return self
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#
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__iadd__ = append = extend = __add__
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#
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def replace(self, cur_value, value):
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self[self.index(cur_value)] = value
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#
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def __sub__(self, value):
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del self[self.index(value)]
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return self
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#
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__isub__ = remove = __sub__
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#
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def _print(data):
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print data
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#
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def __str__(self):
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return '%s'*len(self) % tuple(self[:])
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#
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def __iter__(self):
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for item in self[:]:
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if isinstance(item, self.Html):
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for sub_item in item:
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yield sub_item
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else:
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yield item
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#
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iterkeys = itervalues = iteritems = __iter__
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#
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def write(self, method=_print, tabs=''):
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tabs += '\t' if self.indent else ''
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@ -112,51 +110,34 @@ class Html(object):
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method('%s%s' % (tabs,self))
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#
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else:
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for item in self.items:
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if isinstance(item, self.__class__):
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for item in self[:]:
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if isinstance(item, Html):
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item.write(tabs=tabs)
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else:
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method('%s%s' % (tabs, item))
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if self.end is not None:
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method('%s%s' % (tabs, self.end))
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#
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def __str__(self):
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return '%s'*len(self.items) % self.items + \
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(self.end or '')
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def addXML(self, version=1.0, encoding="UTF-8", standalone="no"):
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xml = XML(version=version, encoding=encoding, standalone=standalone)
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self.insert(0, xml)
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#
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def __iter__(self):
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for item in self.items:
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if isinstance(item, self.__class__):
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for j in item:
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yield j
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else:
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yield item
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if self.end is not None:
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yield self.end
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#
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def XML(self,version=1.0, encoding="UTF-8", standalone="no"):
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return '<?xml %s %s %s?>' % (
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'version="%s"' % version,
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'encoding="%s"' % encoding,
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'standalone="%s"' % standalone
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)
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#
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def addXML(self,version=1.0, encoding="UTF-8", standalone="no"):
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xml = self.XML(version=version, encoding=encoding, standalone=standalone)
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self.items = (xml,) + self.items
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#
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def DOCTYPE(self,name='html', external_id=_XHTML1_STRICT, *args):
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return '<!DOCTYPE %s %s%s>' % (
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name,
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external_id,
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' %s'*len(args) % args
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)
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#
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def addDOCTYPE(self,name='html', external_id=_XHTML1_STRICT, *args):
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doctype = self.DOCTYPE(name='html', external_id=_XHTML1_STRICT, *args)
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if len(self.items) > 0 and self.items[0][:6] == '<?xml ':
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self.items = self.items[:1] + (doctype,) + self.items[1:]
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def addDOCTYPE(self, name='html', external_id=_XHTML1_STRICT, *args):
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doctype = DOCTYPE(name='html', external_id=_XHTML1_STRICT, *args)
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if len(self) and self[0][:6] == '<?xml ':
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self.insert(1, doctype)
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else:
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self.items = (doctype,) + self.items
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self.insert(0, doctype)
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def XML(version=1.0, encoding="UTF-8", standalone="no"):
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return '<?xml %s %s %s?>' % (
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'version="%s"' % version,
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'encoding="%s"' % encoding,
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'standalone="%s"' % standalone
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)
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def DOCTYPE(name='html', external_id=_XHTML1_STRICT, *args):
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return '<!DOCTYPE %s %s%s>' % (
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name,
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external_id,
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' %s'*len(args) % args
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)
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