Annotation of xmlschema/XML.py, revision 1.16.2.1
1.9 ht 1: # Copyright (C) 2000 LTG -- See accompanying COPYRIGHT and COPYING files
1.14 ht 2: from PyLTXML import *
1.2 ht 3: from string import *
4: import sys
5: import types
6:
7: class Pcdata:
8:
1.3 ht 9: def __init__(self, value, where=None):
1.2 ht 10: self.value = value
1.3 ht 11: self.where = where
1.2 ht 12:
1.15 richard 13: def __getattr__(self,name):
14: # infoset-like slot aliases
15: if name == 'characters':
16: return self.value
17: else:
18: raise AttributeError, name
19:
1.2 ht 20: def printme(self, file):
1.16.2.1! richard 21: printsomehow(file, escape(self.value))
1.2 ht 22:
23: class Attribute:
1.11 ht 24: cv=None
1.5 richard 25: def __init__(self, name, value, spec=None, uri=None, local=None):
1.2 ht 26: self.name = name
27: self.value = value
28: self.spec = None
1.7 ht 29: self.uri=uri
30: self.local=local
1.2 ht 31:
1.15 richard 32: def __getattr__(self,name):
33: # infoset-like slot aliases
34: if name == 'originalName':
35: return self.name
36: elif name == 'localName':
37: return self.local
38: elif name == 'namespaceName':
39: return self.uri
40: elif name == 'normalizedValue':
41: return self.value
42: else:
43: raise AttributeError, name
44:
1.2 ht 45: def printme(self, file):
1.11 ht 46: if self.value!=None:
47: if self.cv:
48: val=self.cv
49: else:
1.16.2.1! richard 50: val=escape(self.value, 1)
1.11 ht 51: self.cv=val
1.16.2.1! richard 52: printsomehow(file, " %s='%s'" % (self.name, val))
1.2 ht 53:
54: class Element:
55:
1.3 ht 56: def __init__(self, arg1, arg2=None, arg3=None):
1.2 ht 57: self.attrs = {}
1.5 richard 58: self.nsattrs = {}
1.2 ht 59: self.children = []
60:
1.10 ht 61: if somestring(type(arg1)):
1.3 ht 62: self.fromString(arg1)
63: elif type(arg1) == BitType:
64: self.fromBit(arg1, arg2, arg3)
65: elif type(arg1) == ItemType:
66: self.fromItem(arg1, arg2)
67: elif type(arg1) == FileType:
68: self.fromFile(arg1, arg2)
69:
1.15 richard 70: def __getattr__(self,name):
71: # infoset-like slot aliases
72: if name == 'originalName':
73: return self.name
74: elif name == 'localName':
75: return self.local
76: elif name == 'namespaceName':
77: return self.uri
78: elif name == 'attributes':
79: return self.nsattrs
80: elif name == 'chunkedChildren':
81: return self.children
82: else:
83: raise AttributeError, name
84:
1.3 ht 85: def fromString(self, name):
86: self.name = name
87: self.spec = None
1.4 richard 88: self.local = None
89: self.uri = None
1.3 ht 90: return
91:
92: def fromBit(self, bit, file, where):
93: doctype = file.doctype
94: if doctype.elementTypes.has_key(bit.label):
95: self.spec = doctype.elementTypes[bit.label]
96: else:
1.2 ht 97: self.spec = None
1.3 ht 98: self.name = bit.label
1.4 richard 99: self.local = bit.llabel
100: self.uri = bit.nsuri
1.8 richard 101: self.nsdict = bit.item.nsdict
1.3 ht 102: self.getAttrs(bit.item)
103: self.where = where
104: if bit.type == "empty":
105: if where:
106: self.where2 = file.where
107: else:
108: self.where2 = None
1.2 ht 109: return
1.3 ht 110: if where:
111: w = file.where
112: else:
113: w = None
114: b = GetNextBit(file)
115: while b.type != "end":
116: if b.type == error:
117: raise Exception, "parse error"
118: if b.type == "start" or b.type == "empty":
119: self.children.append(Element(b, file, w))
120: elif b.type == "text":
121: self.children.append(Pcdata(b.body, w))
122: if where:
123: w = file.where
124: b = GetNextBit(file)
125: self.where2 = w
126: return
127:
128: def fromItem(self, item, doctype):
129: if doctype.elementTypes.has_key(item.label):
130: self.spec = doctype.elementTypes[item.label]
131: else:
132: self.spec = None
1.2 ht 133: self.name = item.label
1.4 richard 134: self.local = item.llabel
135: self.uri = item.nsuri
1.16 ht 136: self.nsdict = item.nsdict
1.3 ht 137: self.getAttrs(item)
1.2 ht 138:
139: for child in item.data:
140: if type(child) == ItemType:
1.3 ht 141: self.children.append(Element(child, doctype))
1.2 ht 142: else:
1.3 ht 143: self.children.append(Pcdata(child))
144:
145: def fromFile(self, file, notewhere):
146: if notewhere:
147: w = file.where
148: else:
149: w = None
150: b = GetNextBit(file)
1.11 ht 151: while b:
152: if b.type != "start" and b.type != "empty":
153: if b.type == error:
154: raise Exception, "parse error"
155: else:
156: if notewhere:
157: w = file.where
158: self.fromBit(b, file, w)
159: return
1.3 ht 160: b = GetNextBit(file)
1.11 ht 161: # if we fall through the file was broken
162: raise Exception, "I/O error/empty file"
1.3 ht 163:
164: def getAttrs(self, item):
1.5 richard 165: atts = ItemActualAttributesNS(item)
166: for (name,value,uri,local) in atts:
1.6 ht 167: if self.spec and self.spec.attrDefns.has_key(name):
1.5 richard 168: a = Attribute(name, value, self.spec.attrDefns[name], uri, local)
169: else:
170: a = self.attrs[name] = Attribute(name, value, None, uri, local)
171: self.attrs[name] = a
172: self.nsattrs[(uri,local)] = a
173:
1.11 ht 174: def printme(self, file, notElementOnly=0):
1.16.2.1! richard 175: printsomehow(file, "<%s" % self.name)
1.13 ht 176: ans=self.attrs.keys()
177: ans.sort()
178: for an in ans:
179: self.attrs[an].printme(file)
1.11 ht 180: if not self.children:
1.16.2.1! richard 181: printsomehow(file,"/>")
1.11 ht 182: return
1.16.2.1! richard 183: printsomehow(file, ">")
1.11 ht 184: eo=1
185: if notElementOnly:
186: eo=0
187: else:
188: for child in self.children:
189: if isinstance(child,Pcdata):
190: eo=0
191: break
192: if eo:
1.16.2.1! richard 193: printsomehow(file,"\n")
1.2 ht 194: for child in self.children:
195: child.printme(file)
1.12 ht 196: if eo:
1.16.2.1! richard 197: printsomehow(file,"\n")
! 198: printsomehow(file, "</%s>" % self.name)
1.12 ht 199:
200: def addAttr(self,name,value):
201: self.attrs[name]=Attribute(name,value)
1.10 ht 202:
203: if types.__dict__.has_key('UnicodeType'):
204: def somestring(type):
1.11 ht 205: return type==types.StringType or type==types.UnicodeType
1.10 ht 206: else:
207: def somestring(type):
208: return type==types.StringType
1.5 richard 209:
1.16.2.1! richard 210: def escape(string, isattr=0):
! 211: if "&" in string:
! 212: string=replace(string,"&","&")
! 213: if isattr and "'" in string:
! 214: string=replace(string,"'","'")
! 215: if "<" in string:
! 216: string=replace(string,"<","<")
! 217: if not isattr and find(string, "]]>") >= 0:
! 218: string=replace(string,"]]>","]]>")
! 219: return string
! 220:
! 221: def printsomehow(file, string):
! 222: if isinstance(file, types.FileType):
! 223: file.write(string)
! 224: else:
! 225: PrintTextLiteral(file, string)
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