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Diffstat (limited to 'sca-cpp/branches/gcc-4.4/modules/wsgi/atomutil.py')
| -rw-r--r-- | sca-cpp/branches/gcc-4.4/modules/wsgi/atomutil.py | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/sca-cpp/branches/gcc-4.4/modules/wsgi/atomutil.py b/sca-cpp/branches/gcc-4.4/modules/wsgi/atomutil.py new file mode 100644 index 0000000000..0ec83ca9e0 --- /dev/null +++ b/sca-cpp/branches/gcc-4.4/modules/wsgi/atomutil.py @@ -0,0 +1,103 @@ +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. + +# ATOM data conversion functions + +from util import * +from elemutil import * +from xmlutil import * + +# Convert a list of elements to a list of values representing an ATOM entry +def entryElementsToValues(e): + lt = filter(selector((element, "'title")), e) + t = "" if isNil(lt) else elementValue(car(lt)) + li = filter(selector((element, "'id")), e) + i = "" if isNil(li) else elementValue(car(li)) + lc = filter(selector((element, "'content")), e) + return (t, i, cadr(elementChildren(car(lc)))) + +# Convert a list of elements to a list of values representing ATOM entries +def entriesElementsToValues(e): + if isNil(e): + return e + return cons(entryElementsToValues(car(e)), entriesElementsToValues(cdr(e))) + +# Convert a list of strings to a list of values representing an ATOM entry +def readATOMEntry(l): + e = readXML(l) + if isNil(e): + return () + return entryElementsToValues(car(e)) + +# Convert a list of values representy an ATOM entry to a value +def entryValue(e): + v = elementsToValues((caddr(e),)) + return cons(car(e), (cadr(e), cdr(car(v)))) + +# Convert a list of strings to a list of values representing an ATOM feed +def readATOMFeed(l): + f = readXML(l) + if isNil(f): + return () + t = filter(selector((element, "'title")), car(f)) + i = filter(selector((element, "'id")), car(f)) + e = filter(selector((element, "'entry")), car(f)) + if isNil(e): + return (elementValue(car(t)), elementValue(car(i))) + return cons(elementValue(car(t)), cons(elementValue(car(i)), entriesElementsToValues(e))) + +# Convert a list of values representy an ATOM entry to a list of elements +def entryElement(l): + return (element, "'entry", (attribute, "'xmlns", "http://www.w3.org/2005/Atom"), + (element, "'title", (attribute, "'type", "text"), car(l)), + (element, "'id", cadr(l)), + (element, "'content", (attribute, "'type", "application/xml"), caddr(l)), + (element, "'link", (attribute, "'href", cadr(l)))) + +# Convert a list of values representing ATOM entries to a list of elements +def entriesElements(l): + if isNil(l): + return l + return cons(entryElement(car(l)), entriesElements(cdr(l))) + +# Convert a list of values representing an ATOM entry to an ATOM entry +def writeATOMEntry(l): + return writeXML((entryElement(l),), True) + +# Convert a list of values representing an ATOM feed to an ATOM feed +def writeATOMFeed(l): + f = (element, "'feed", (attribute, "'xmlns", "http://www.w3.org/2005/Atom"), + (element, "'title", (attribute, "'type", "text"), car(l)), + (element, "'id", cadr(l))) + if isNil(cddr(l)): + return writeXML((f,), True) + fe = f + entriesElements(cddr(l)) + return writeXML((fe,), True) + +# Convert an ATOM entry containing a value to an ATOM entry containing an item element +def entryValuesToElements(v): + return cons(car(v), cons(cadr(v), valuesToElements((cons("'item", caddr(v)),)))) + +# Convert an ATOM feed containing values to an ATOM feed containing elements +def feedValuesToElementsLoop(v): + if isNil(v): + return v + return cons(entryValuesToElements(car(v)), feedValuesToElementsLoop(cdr(v))) + +def feedValuesToElements(v): + return cons(car(v), cons(cadr(v), feedValuesToElementsLoop(cddr(v)))) + |