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Diffstat (limited to 'eggs/py-1.4.0-py2.6.egg/py/_xmlgen.py')
| -rw-r--r-- | eggs/py-1.4.0-py2.6.egg/py/_xmlgen.py | 244 |
1 files changed, 0 insertions, 244 deletions
diff --git a/eggs/py-1.4.0-py2.6.egg/py/_xmlgen.py b/eggs/py-1.4.0-py2.6.egg/py/_xmlgen.py deleted file mode 100644 index 1bcf959..0000000 --- a/eggs/py-1.4.0-py2.6.egg/py/_xmlgen.py +++ /dev/null @@ -1,244 +0,0 @@ -""" -module for generating and serializing xml and html structures -by using simple python objects. - -(c) holger krekel, holger at merlinux eu. 2009 -""" -import py -import sys, re - -if sys.version_info >= (3,0): - def u(s): - return s - def unicode(x): - if hasattr(x, '__unicode__'): - return x.__unicode__() - return str(x) -else: - def u(s): - return unicode(s) - unicode = unicode - - -class NamespaceMetaclass(type): - def __getattr__(self, name): - if name[:1] == '_': - raise AttributeError(name) - if self == Namespace: - raise ValueError("Namespace class is abstract") - tagspec = self.__tagspec__ - if tagspec is not None and name not in tagspec: - raise AttributeError(name) - classattr = {} - if self.__stickyname__: - classattr['xmlname'] = name - cls = type(name, (self.__tagclass__,), classattr) - setattr(self, name, cls) - return cls - -class Tag(list): - class Attr(object): - def __init__(self, **kwargs): - self.__dict__.update(kwargs) - - def __init__(self, *args, **kwargs): - super(Tag, self).__init__(args) - self.attr = self.Attr(**kwargs) - - def __unicode__(self): - return self.unicode(indent=0) - __str__ = __unicode__ - - def unicode(self, indent=2): - l = [] - SimpleUnicodeVisitor(l.append, indent).visit(self) - return "".join(l) - - def __repr__(self): - name = self.__class__.__name__ - return "<%r tag object %d>" % (name, id(self)) - -Namespace = NamespaceMetaclass('Namespace', (object, ), { - '__tagspec__': None, - '__tagclass__': Tag, - '__stickyname__': False, -}) - -class HtmlTag(Tag): - def unicode(self, indent=2): - l = [] - HtmlVisitor(l.append, indent, shortempty=False).visit(self) - return u("").join(l) - -# exported plain html namespace -class html(Namespace): - __tagclass__ = HtmlTag - __stickyname__ = True - __tagspec__ = dict([(x,1) for x in ( - 'a,abbr,acronym,address,applet,area,b,bdo,big,blink,' - 'blockquote,body,br,button,caption,center,cite,code,col,' - 'colgroup,comment,dd,del,dfn,dir,div,dl,dt,em,embed,' - 'fieldset,font,form,frameset,h1,h2,h3,h4,h5,h6,head,html,' - 'i,iframe,img,input,ins,kbd,label,legend,li,link,listing,' - 'map,marquee,menu,meta,multicol,nobr,noembed,noframes,' - 'noscript,object,ol,optgroup,option,p,pre,q,s,script,' - 'select,small,span,strike,strong,style,sub,sup,table,' - 'tbody,td,textarea,tfoot,th,thead,title,tr,tt,u,ul,xmp,' - 'base,basefont,frame,hr,isindex,param,samp,var' - ).split(',') if x]) - - class Style(object): - def __init__(self, **kw): - for x, y in kw.items(): - x = x.replace('_', '-') - setattr(self, x, y) - - -class raw(object): - """just a box that can contain a unicode string that will be - included directly in the output""" - def __init__(self, uniobj): - self.uniobj = uniobj - -class SimpleUnicodeVisitor(object): - """ recursive visitor to write unicode. """ - def __init__(self, write, indent=0, curindent=0, shortempty=True): - self.write = write - self.cache = {} - self.visited = {} # for detection of recursion - self.indent = indent - self.curindent = curindent - self.parents = [] - self.shortempty = shortempty # short empty tags or not - - def visit(self, node): - """ dispatcher on node's class/bases name. """ - cls = node.__class__ - try: - visitmethod = self.cache[cls] - except KeyError: - for subclass in cls.__mro__: - visitmethod = getattr(self, subclass.__name__, None) - if visitmethod is not None: - break - else: - visitmethod = self.object - self.cache[cls] = visitmethod - visitmethod(node) - - def object(self, obj): - #self.write(obj) - self.write(escape(unicode(obj))) - - def raw(self, obj): - self.write(obj.uniobj) - - def list(self, obj): - assert id(obj) not in self.visited - self.visited[id(obj)] = 1 - map(self.visit, obj) - - def Tag(self, tag): - assert id(tag) not in self.visited - try: - tag.parent = self.parents[-1] - except IndexError: - tag.parent = None - self.visited[id(tag)] = 1 - tagname = getattr(tag, 'xmlname', tag.__class__.__name__) - if self.curindent and not self._isinline(tagname): - self.write("\n" + u(' ') * self.curindent) - if tag: - self.curindent += self.indent - self.write(u('<%s%s>') % (tagname, self.attributes(tag))) - self.parents.append(tag) - for x in tag: - self.visit(x) - self.parents.pop() - self.write(u('</%s>') % tagname) - self.curindent -= self.indent - else: - nameattr = tagname+self.attributes(tag) - if self._issingleton(tagname): - self.write(u('<%s/>') % (nameattr,)) - else: - self.write(u('<%s></%s>') % (nameattr, tagname)) - - def attributes(self, tag): - # serialize attributes - attrlist = dir(tag.attr) - attrlist.sort() - l = [] - for name in attrlist: - res = self.repr_attribute(tag.attr, name) - if res is not None: - l.append(res) - l.extend(self.getstyle(tag)) - return u("").join(l) - - def repr_attribute(self, attrs, name): - if name[:2] != '__': - value = getattr(attrs, name) - if name.endswith('_'): - name = name[:-1] - return ' %s="%s"' % (name, escape(unicode(value))) - - def getstyle(self, tag): - """ return attribute list suitable for styling. """ - try: - styledict = tag.style.__dict__ - except AttributeError: - return [] - else: - stylelist = [x+': ' + y for x,y in styledict.items()] - return [u(' style="%s"') % u('; ').join(stylelist)] - - def _issingleton(self, tagname): - """can (and will) be overridden in subclasses""" - return self.shortempty - - def _isinline(self, tagname): - """can (and will) be overridden in subclasses""" - return False - -class HtmlVisitor(SimpleUnicodeVisitor): - - single = dict([(x, 1) for x in - ('br,img,area,param,col,hr,meta,link,base,' - 'input,frame').split(',')]) - inline = dict([(x, 1) for x in - ('a abbr acronym b basefont bdo big br cite code dfn em font ' - 'i img input kbd label q s samp select small span strike ' - 'strong sub sup textarea tt u var'.split(' '))]) - - def repr_attribute(self, attrs, name): - if name == 'class_': - value = getattr(attrs, name) - if value is None: - return - return super(HtmlVisitor, self).repr_attribute(attrs, name) - - def _issingleton(self, tagname): - return tagname in self.single - - def _isinline(self, tagname): - return tagname in self.inline - - -class _escape: - def __init__(self): - self.escape = { - u('"') : u('"'), u('<') : u('<'), u('>') : u('>'), - u('&') : u('&'), u("'") : u('''), - } - self.charef_rex = re.compile(u("|").join(self.escape.keys())) - - def _replacer(self, match): - return self.escape[match.group(0)] - - def __call__(self, ustring): - """ xml-escape the given unicode string. """ - ustring = unicode(ustring) - return self.charef_rex.sub(self._replacer, ustring) - -escape = _escape() |