mirror of https://github.com/python/cpython
1032 lines
35 KiB
Python
Executable File
1032 lines
35 KiB
Python
Executable File
#! /usr/bin/env python
|
|
|
|
"""Perform massive transformations on a document tree created from the LaTeX
|
|
of the Python documentation, and dump the ESIS data for the transformed tree.
|
|
"""
|
|
__version__ = '$Revision$'
|
|
|
|
|
|
import errno
|
|
import esistools
|
|
import re
|
|
import string
|
|
import sys
|
|
import xml.dom.core
|
|
|
|
from xml.dom.core import \
|
|
ELEMENT, \
|
|
ENTITY_REFERENCE, \
|
|
TEXT
|
|
|
|
|
|
class ConversionError(Exception):
|
|
pass
|
|
|
|
|
|
ewrite = sys.stderr.write
|
|
try:
|
|
# We can only do this trick on Unix (if tput is on $PATH)!
|
|
if sys.platform != "posix" or not sys.stderr.isatty():
|
|
raise ImportError
|
|
import curses
|
|
import commands
|
|
except ImportError:
|
|
bwrite = ewrite
|
|
else:
|
|
def bwrite(s, BOLDON=commands.getoutput("tput bold"),
|
|
BOLDOFF=commands.getoutput("tput sgr0")):
|
|
ewrite("%s%s%s" % (BOLDON, s, BOLDOFF))
|
|
|
|
|
|
PARA_ELEMENT = "para"
|
|
|
|
DEBUG_PARA_FIXER = 0
|
|
|
|
if DEBUG_PARA_FIXER:
|
|
def para_msg(s):
|
|
ewrite("*** %s\n" % s)
|
|
else:
|
|
def para_msg(s):
|
|
pass
|
|
|
|
|
|
# Workaround to deal with invalid documents (multiple root elements). This
|
|
# does not indicate a bug in the DOM implementation.
|
|
#
|
|
def get_documentElement(doc):
|
|
docelem = None
|
|
for n in doc.childNodes:
|
|
if n.nodeType == ELEMENT:
|
|
docelem = n
|
|
return docelem
|
|
|
|
xml.dom.core.Document.get_documentElement = get_documentElement
|
|
|
|
|
|
# Replace get_childNodes for the Document class; without this, children
|
|
# accessed from the Document object via .childNodes (no matter how many
|
|
# levels of access are used) will be given an ownerDocument of None.
|
|
#
|
|
def get_childNodes(doc):
|
|
return xml.dom.core.NodeList(doc._node.children, doc._node)
|
|
|
|
xml.dom.core.Document.get_childNodes = get_childNodes
|
|
|
|
|
|
def get_first_element(doc, gi):
|
|
for n in doc.childNodes:
|
|
if n.get_nodeName() == gi:
|
|
return n
|
|
|
|
def extract_first_element(doc, gi):
|
|
node = get_first_element(doc, gi)
|
|
if node is not None:
|
|
doc.removeChild(node)
|
|
return node
|
|
|
|
|
|
def find_all_elements(doc, gi):
|
|
nodes = []
|
|
if doc.get_nodeName() == gi:
|
|
nodes.append(doc)
|
|
for child in doc.childNodes:
|
|
if child.nodeType == ELEMENT:
|
|
if child.get_tagName() == gi:
|
|
nodes.append(child)
|
|
for node in child.getElementsByTagName(gi):
|
|
nodes.append(node)
|
|
return nodes
|
|
|
|
def find_all_child_elements(doc, gi):
|
|
nodes = []
|
|
for child in doc.childNodes:
|
|
if child.get_nodeName() == gi:
|
|
nodes.append(child)
|
|
return nodes
|
|
|
|
def find_all_elements_from_set(doc, gi_set):
|
|
return __find_all_elements_from_set(doc, gi_set, [])
|
|
|
|
def __find_all_elements_from_set(doc, gi_set, nodes):
|
|
if doc.get_nodeName() in gi_set:
|
|
nodes.append(doc)
|
|
for child in doc.childNodes:
|
|
if child.get_nodeType() == ELEMENT:
|
|
__find_all_elements_from_set(child, gi_set, nodes)
|
|
return nodes
|
|
|
|
|
|
def simplify(doc, fragment):
|
|
# Try to rationalize the document a bit, since these things are simply
|
|
# not valid SGML/XML documents as they stand, and need a little work.
|
|
documentclass = "document"
|
|
inputs = []
|
|
node = extract_first_element(fragment, "documentclass")
|
|
if node is not None:
|
|
documentclass = node.getAttribute("classname")
|
|
node = extract_first_element(fragment, "title")
|
|
if node is not None:
|
|
inputs.append(node)
|
|
# update the name of the root element
|
|
node = get_first_element(fragment, "document")
|
|
if node is not None:
|
|
node._node.name = documentclass
|
|
while 1:
|
|
node = extract_first_element(fragment, "input")
|
|
if node is None:
|
|
break
|
|
inputs.append(node)
|
|
if inputs:
|
|
docelem = get_documentElement(fragment)
|
|
inputs.reverse()
|
|
for node in inputs:
|
|
text = doc.createTextNode("\n")
|
|
docelem.insertBefore(text, docelem.firstChild)
|
|
docelem.insertBefore(node, text)
|
|
docelem.insertBefore(doc.createTextNode("\n"), docelem.firstChild)
|
|
while fragment.firstChild and fragment.firstChild.get_nodeType() == TEXT:
|
|
fragment.removeChild(fragment.firstChild)
|
|
|
|
|
|
def cleanup_root_text(doc):
|
|
discards = []
|
|
skip = 0
|
|
for n in doc.childNodes:
|
|
prevskip = skip
|
|
skip = 0
|
|
if n.get_nodeType() == TEXT and not prevskip:
|
|
discards.append(n)
|
|
elif n.get_nodeName() == "COMMENT":
|
|
skip = 1
|
|
for node in discards:
|
|
doc.removeChild(node)
|
|
|
|
|
|
DESCRIPTOR_ELEMENTS = (
|
|
"cfuncdesc", "cvardesc", "ctypedesc",
|
|
"classdesc", "memberdesc", "memberdescni", "methoddesc", "methoddescni",
|
|
"excdesc", "funcdesc", "funcdescni", "opcodedesc",
|
|
"datadesc", "datadescni",
|
|
)
|
|
|
|
def fixup_descriptors(doc, fragment):
|
|
sections = find_all_elements(fragment, "section")
|
|
for section in sections:
|
|
find_and_fix_descriptors(doc, section)
|
|
|
|
|
|
def find_and_fix_descriptors(doc, container):
|
|
children = container.childNodes
|
|
for child in children:
|
|
if child.get_nodeType() == ELEMENT:
|
|
tagName = child.get_tagName()
|
|
if tagName in DESCRIPTOR_ELEMENTS:
|
|
rewrite_descriptor(doc, child)
|
|
elif tagName == "subsection":
|
|
find_and_fix_descriptors(doc, child)
|
|
|
|
|
|
def rewrite_descriptor(doc, descriptor):
|
|
#
|
|
# Do these things:
|
|
# 1. Add an "index='no'" attribute to the element if the tagName
|
|
# ends in 'ni', removing the 'ni' from the name.
|
|
# 2. Create a <signature> from the name attribute
|
|
# 2a.Create an <args> if it appears to be available.
|
|
# 3. Create additional <signature>s from <*line{,ni}> elements,
|
|
# if found.
|
|
# 4. If a <versionadded> is found, move it to an attribute on the
|
|
# descriptor.
|
|
# 5. Move remaining child nodes to a <description> element.
|
|
# 6. Put it back together.
|
|
#
|
|
# 1.
|
|
descname = descriptor.get_tagName()
|
|
index = 1
|
|
if descname[-2:] == "ni":
|
|
descname = descname[:-2]
|
|
descriptor.setAttribute("index", "no")
|
|
descriptor._node.name = descname
|
|
index = 0
|
|
desctype = descname[:-4] # remove 'desc'
|
|
linename = desctype + "line"
|
|
if not index:
|
|
linename = linename + "ni"
|
|
# 2.
|
|
signature = doc.createElement("signature")
|
|
name = doc.createElement("name")
|
|
signature.appendChild(doc.createTextNode("\n "))
|
|
signature.appendChild(name)
|
|
name.appendChild(doc.createTextNode(descriptor.getAttribute("name")))
|
|
descriptor.removeAttribute("name")
|
|
# 2a.
|
|
if descriptor.attributes.has_key("var"):
|
|
if descname != "opcodedesc":
|
|
raise RuntimeError, \
|
|
"got 'var' attribute on descriptor other than opcodedesc"
|
|
variable = descriptor.getAttribute("var")
|
|
if variable:
|
|
args = doc.createElement("args")
|
|
args.appendChild(doc.createTextNode(variable))
|
|
signature.appendChild(doc.createTextNode("\n "))
|
|
signature.appendChild(args)
|
|
descriptor.removeAttribute("var")
|
|
newchildren = [signature]
|
|
children = descriptor.childNodes
|
|
pos = skip_leading_nodes(children)
|
|
if pos < len(children):
|
|
child = children[pos]
|
|
if child.nodeName == "args":
|
|
# move <args> to <signature>, or remove if empty:
|
|
child.parentNode.removeChild(child)
|
|
if len(child.childNodes):
|
|
signature.appendChild(doc.createTextNode("\n "))
|
|
signature.appendChild(child)
|
|
signature.appendChild(doc.createTextNode("\n "))
|
|
# 3, 4.
|
|
pos = skip_leading_nodes(children, pos)
|
|
while pos < len(children) \
|
|
and children[pos].get_nodeName() in (linename, "versionadded"):
|
|
if children[pos].get_tagName() == linename:
|
|
# this is really a supplemental signature, create <signature>
|
|
sig = methodline_to_signature(doc, children[pos])
|
|
newchildren.append(sig)
|
|
else:
|
|
# <versionadded added=...>
|
|
descriptor.setAttribute(
|
|
"added", children[pos].getAttribute("version"))
|
|
pos = skip_leading_nodes(children, pos + 1)
|
|
# 5.
|
|
description = doc.createElement("description")
|
|
description.appendChild(doc.createTextNode("\n"))
|
|
newchildren.append(description)
|
|
move_children(descriptor, description, pos)
|
|
last = description.childNodes[-1]
|
|
if last.nodeType == TEXT:
|
|
last.data = string.rstrip(last.data) + "\n "
|
|
# 6.
|
|
# should have nothing but whitespace and signature lines in <descriptor>;
|
|
# discard them
|
|
while descriptor.childNodes:
|
|
descriptor.removeChild(descriptor.childNodes[0])
|
|
for node in newchildren:
|
|
descriptor.appendChild(doc.createTextNode("\n "))
|
|
descriptor.appendChild(node)
|
|
descriptor.appendChild(doc.createTextNode("\n"))
|
|
|
|
|
|
def methodline_to_signature(doc, methodline):
|
|
signature = doc.createElement("signature")
|
|
signature.appendChild(doc.createTextNode("\n "))
|
|
name = doc.createElement("name")
|
|
name.appendChild(doc.createTextNode(methodline.getAttribute("name")))
|
|
methodline.removeAttribute("name")
|
|
signature.appendChild(name)
|
|
if len(methodline.childNodes):
|
|
args = doc.createElement("args")
|
|
signature.appendChild(doc.createTextNode("\n "))
|
|
signature.appendChild(args)
|
|
move_children(methodline, args)
|
|
signature.appendChild(doc.createTextNode("\n "))
|
|
return signature
|
|
|
|
|
|
def move_children(origin, dest, start=0):
|
|
children = origin.childNodes
|
|
while start < len(children):
|
|
node = children[start]
|
|
origin.removeChild(node)
|
|
dest.appendChild(node)
|
|
|
|
|
|
def handle_appendix(doc, fragment):
|
|
# must be called after simplfy() if document is multi-rooted to begin with
|
|
docelem = get_documentElement(fragment)
|
|
toplevel = docelem.get_tagName() == "manual" and "chapter" or "section"
|
|
appendices = 0
|
|
nodes = []
|
|
for node in docelem.childNodes:
|
|
if appendices:
|
|
nodes.append(node)
|
|
elif node.nodeType == ELEMENT:
|
|
appnodes = node.getElementsByTagName("appendix")
|
|
if appnodes:
|
|
appendices = 1
|
|
parent = appnodes[0].parentNode
|
|
parent.removeChild(appnodes[0])
|
|
parent.normalize()
|
|
if nodes:
|
|
map(docelem.removeChild, nodes)
|
|
docelem.appendChild(doc.createTextNode("\n\n\n"))
|
|
back = doc.createElement("back-matter")
|
|
docelem.appendChild(back)
|
|
back.appendChild(doc.createTextNode("\n"))
|
|
while nodes and nodes[0].nodeType == TEXT \
|
|
and not string.strip(nodes[0].data):
|
|
del nodes[0]
|
|
map(back.appendChild, nodes)
|
|
docelem.appendChild(doc.createTextNode("\n"))
|
|
|
|
|
|
def handle_labels(doc, fragment):
|
|
for label in find_all_elements(fragment, "label"):
|
|
id = label.getAttribute("id")
|
|
if not id:
|
|
continue
|
|
parent = label.parentNode
|
|
parentTagName = parent.get_tagName()
|
|
if parentTagName == "title":
|
|
parent.parentNode.setAttribute("id", id)
|
|
else:
|
|
parent.setAttribute("id", id)
|
|
# now, remove <label id="..."/> from parent:
|
|
parent.removeChild(label)
|
|
if parentTagName == "title":
|
|
parent.normalize()
|
|
children = parent.childNodes
|
|
if children[-1].nodeType == TEXT:
|
|
children[-1].data = string.rstrip(children[-1].data)
|
|
|
|
|
|
def fixup_trailing_whitespace(doc, wsmap):
|
|
queue = [doc]
|
|
while queue:
|
|
node = queue[0]
|
|
del queue[0]
|
|
if wsmap.has_key(node.get_nodeName()):
|
|
ws = wsmap[node.get_tagName()]
|
|
children = node.childNodes
|
|
children.reverse()
|
|
if children[0].nodeType == TEXT:
|
|
data = string.rstrip(children[0].data) + ws
|
|
children[0].data = data
|
|
children.reverse()
|
|
# hack to get the title in place:
|
|
if node.get_tagName() == "title" \
|
|
and node.parentNode.firstChild.get_nodeType() == ELEMENT:
|
|
node.parentNode.insertBefore(doc.createText("\n "),
|
|
node.parentNode.firstChild)
|
|
for child in node.childNodes:
|
|
if child.nodeType == ELEMENT:
|
|
queue.append(child)
|
|
|
|
|
|
def normalize(doc):
|
|
for node in doc.childNodes:
|
|
if node.nodeType == ELEMENT:
|
|
node.normalize()
|
|
|
|
|
|
def cleanup_trailing_parens(doc, element_names):
|
|
d = {}
|
|
for gi in element_names:
|
|
d[gi] = gi
|
|
rewrite_element = d.has_key
|
|
queue = []
|
|
for node in doc.childNodes:
|
|
if node.nodeType == ELEMENT:
|
|
queue.append(node)
|
|
while queue:
|
|
node = queue[0]
|
|
del queue[0]
|
|
if rewrite_element(node.get_tagName()):
|
|
children = node.childNodes
|
|
if len(children) == 1 \
|
|
and children[0].nodeType == TEXT:
|
|
data = children[0].data
|
|
if data[-2:] == "()":
|
|
children[0].data = data[:-2]
|
|
else:
|
|
for child in node.childNodes:
|
|
if child.nodeType == ELEMENT:
|
|
queue.append(child)
|
|
|
|
|
|
def contents_match(left, right):
|
|
left_children = left.childNodes
|
|
right_children = right.childNodes
|
|
if len(left_children) != len(right_children):
|
|
return 0
|
|
for l, r in map(None, left_children, right_children):
|
|
nodeType = l.nodeType
|
|
if nodeType != r.nodeType:
|
|
return 0
|
|
if nodeType == ELEMENT:
|
|
if l.get_tagName() != r.get_tagName():
|
|
return 0
|
|
# should check attributes, but that's not a problem here
|
|
if not contents_match(l, r):
|
|
return 0
|
|
elif nodeType == TEXT:
|
|
if l.data != r.data:
|
|
return 0
|
|
else:
|
|
# not quite right, but good enough
|
|
return 0
|
|
return 1
|
|
|
|
|
|
def create_module_info(doc, section):
|
|
# Heavy.
|
|
node = extract_first_element(section, "modulesynopsis")
|
|
if node is None:
|
|
return
|
|
node._node.name = "synopsis"
|
|
lastchild = node.childNodes[-1]
|
|
if lastchild.nodeType == TEXT \
|
|
and lastchild.data[-1:] == ".":
|
|
lastchild.data = lastchild.data[:-1]
|
|
modauthor = extract_first_element(section, "moduleauthor")
|
|
if modauthor:
|
|
modauthor._node.name = "author"
|
|
modauthor.appendChild(doc.createTextNode(
|
|
modauthor.getAttribute("name")))
|
|
modauthor.removeAttribute("name")
|
|
platform = extract_first_element(section, "platform")
|
|
if section.get_tagName() == "section":
|
|
modinfo_pos = 2
|
|
modinfo = doc.createElement("moduleinfo")
|
|
moddecl = extract_first_element(section, "declaremodule")
|
|
name = None
|
|
if moddecl:
|
|
modinfo.appendChild(doc.createTextNode("\n "))
|
|
name = moddecl.attributes["name"].value
|
|
namenode = doc.createElement("name")
|
|
namenode.appendChild(doc.createTextNode(name))
|
|
modinfo.appendChild(namenode)
|
|
type = moddecl.attributes.get("type")
|
|
if type:
|
|
type = type.value
|
|
modinfo.appendChild(doc.createTextNode("\n "))
|
|
typenode = doc.createElement("type")
|
|
typenode.appendChild(doc.createTextNode(type))
|
|
modinfo.appendChild(typenode)
|
|
versionadded = extract_first_element(section, "versionadded")
|
|
if versionadded:
|
|
modinfo.setAttribute("added", versionadded.getAttribute("version"))
|
|
title = get_first_element(section, "title")
|
|
if title:
|
|
children = title.childNodes
|
|
if len(children) >= 2 \
|
|
and children[0].get_nodeName() == "module" \
|
|
and children[0].childNodes[0].data == name:
|
|
# this is it; morph the <title> into <short-synopsis>
|
|
first_data = children[1]
|
|
if first_data.data[:4] == " ---":
|
|
first_data.data = string.lstrip(first_data.data[4:])
|
|
title._node.name = "short-synopsis"
|
|
if children[-1].nodeType == TEXT \
|
|
and children[-1].data[-1:] == ".":
|
|
children[-1].data = children[-1].data[:-1]
|
|
section.removeChild(title)
|
|
section.removeChild(section.childNodes[0])
|
|
title.removeChild(children[0])
|
|
modinfo_pos = 0
|
|
else:
|
|
ewrite("module name in title doesn't match"
|
|
" <declaremodule/>; no <short-synopsis/>\n")
|
|
else:
|
|
ewrite("Unexpected condition: <section/> without <title/>\n")
|
|
modinfo.appendChild(doc.createTextNode("\n "))
|
|
modinfo.appendChild(node)
|
|
if title and not contents_match(title, node):
|
|
# The short synopsis is actually different,
|
|
# and needs to be stored:
|
|
modinfo.appendChild(doc.createTextNode("\n "))
|
|
modinfo.appendChild(title)
|
|
if modauthor:
|
|
modinfo.appendChild(doc.createTextNode("\n "))
|
|
modinfo.appendChild(modauthor)
|
|
if platform:
|
|
modinfo.appendChild(doc.createTextNode("\n "))
|
|
modinfo.appendChild(platform)
|
|
modinfo.appendChild(doc.createTextNode("\n "))
|
|
section.insertBefore(modinfo, section.childNodes[modinfo_pos])
|
|
section.insertBefore(doc.createTextNode("\n "), modinfo)
|
|
#
|
|
# The rest of this removes extra newlines from where we cut out
|
|
# a lot of elements. A lot of code for minimal value, but keeps
|
|
# keeps the generated *ML from being too funny looking.
|
|
#
|
|
section.normalize()
|
|
children = section.childNodes
|
|
for i in range(len(children)):
|
|
node = children[i]
|
|
if node.get_nodeName() == "moduleinfo":
|
|
nextnode = children[i+1]
|
|
if nextnode.nodeType == TEXT:
|
|
data = nextnode.data
|
|
if len(string.lstrip(data)) < (len(data) - 4):
|
|
nextnode.data = "\n\n\n" + string.lstrip(data)
|
|
|
|
|
|
def cleanup_synopses(doc, fragment):
|
|
for node in find_all_elements(fragment, "section"):
|
|
create_module_info(doc, node)
|
|
|
|
|
|
def fixup_table_structures(doc, fragment):
|
|
for table in find_all_elements(fragment, "table"):
|
|
fixup_table(doc, table)
|
|
|
|
|
|
def fixup_table(doc, table):
|
|
# create the table head
|
|
thead = doc.createElement("thead")
|
|
row = doc.createElement("row")
|
|
move_elements_by_name(doc, table, row, "entry")
|
|
thead.appendChild(doc.createTextNode("\n "))
|
|
thead.appendChild(row)
|
|
thead.appendChild(doc.createTextNode("\n "))
|
|
# create the table body
|
|
tbody = doc.createElement("tbody")
|
|
prev_row = None
|
|
last_was_hline = 0
|
|
children = table.childNodes
|
|
for child in children:
|
|
if child.nodeType == ELEMENT:
|
|
tagName = child.get_tagName()
|
|
if tagName == "hline" and prev_row is not None:
|
|
prev_row.setAttribute("rowsep", "1")
|
|
elif tagName == "row":
|
|
prev_row = child
|
|
# save the rows:
|
|
tbody.appendChild(doc.createTextNode("\n "))
|
|
move_elements_by_name(doc, table, tbody, "row", sep="\n ")
|
|
# and toss the rest:
|
|
while children:
|
|
child = children[0]
|
|
nodeType = child.nodeType
|
|
if nodeType == TEXT:
|
|
if string.strip(child.data):
|
|
raise ConversionError("unexpected free data in table")
|
|
table.removeChild(child)
|
|
continue
|
|
if nodeType == ELEMENT:
|
|
if child.get_tagName() != "hline":
|
|
raise ConversionError(
|
|
"unexpected <%s> in table" % child.get_tagName())
|
|
table.removeChild(child)
|
|
continue
|
|
raise ConversionError(
|
|
"unexpected %s node in table" % child.__class__.__name__)
|
|
# nothing left in the <table>; add the <thead> and <tbody>
|
|
tgroup = doc.createElement("tgroup")
|
|
tgroup.appendChild(doc.createTextNode("\n "))
|
|
tgroup.appendChild(thead)
|
|
tgroup.appendChild(doc.createTextNode("\n "))
|
|
tgroup.appendChild(tbody)
|
|
tgroup.appendChild(doc.createTextNode("\n "))
|
|
table.appendChild(tgroup)
|
|
# now make the <entry>s look nice:
|
|
for row in table.getElementsByTagName("row"):
|
|
fixup_row(doc, row)
|
|
|
|
|
|
def fixup_row(doc, row):
|
|
entries = []
|
|
map(entries.append, row.childNodes[1:])
|
|
for entry in entries:
|
|
row.insertBefore(doc.createTextNode("\n "), entry)
|
|
# row.appendChild(doc.createTextNode("\n "))
|
|
|
|
|
|
def move_elements_by_name(doc, source, dest, name, sep=None):
|
|
nodes = []
|
|
for child in source.childNodes:
|
|
if child.get_nodeName() == name:
|
|
nodes.append(child)
|
|
for node in nodes:
|
|
source.removeChild(node)
|
|
dest.appendChild(node)
|
|
if sep:
|
|
dest.appendChild(doc.createTextNode(sep))
|
|
|
|
|
|
RECURSE_INTO_PARA_CONTAINERS = (
|
|
"chapter", "abstract", "enumerate",
|
|
"section", "subsection", "subsubsection",
|
|
"paragraph", "subparagraph", "back-matter",
|
|
"howto", "manual",
|
|
"item", "itemize", "fulllineitems", "enumeration", "descriptionlist",
|
|
"definitionlist", "definition",
|
|
)
|
|
|
|
PARA_LEVEL_ELEMENTS = (
|
|
"moduleinfo", "title", "verbatim", "enumerate", "item",
|
|
"interpreter-session", "back-matter", "interactive-session",
|
|
"opcodedesc", "classdesc", "datadesc",
|
|
"funcdesc", "methoddesc", "excdesc", "memberdesc", "membderdescni",
|
|
"funcdescni", "methoddescni", "excdescni",
|
|
"tableii", "tableiii", "tableiv", "localmoduletable",
|
|
"sectionauthor", "seealso", "itemize",
|
|
# include <para>, so we can just do it again to get subsequent paras:
|
|
PARA_ELEMENT,
|
|
)
|
|
|
|
PARA_LEVEL_PRECEEDERS = (
|
|
"setindexsubitem",
|
|
"stindex", "obindex", "COMMENT", "label", "input", "title",
|
|
"versionadded", "versionchanged", "declaremodule", "modulesynopsis",
|
|
"moduleauthor", "indexterm", "leader",
|
|
)
|
|
|
|
|
|
def fixup_paras(doc, fragment):
|
|
for child in fragment.childNodes:
|
|
if child.get_nodeName() in RECURSE_INTO_PARA_CONTAINERS:
|
|
fixup_paras_helper(doc, child)
|
|
descriptions = find_all_elements(fragment, "description")
|
|
for description in descriptions:
|
|
fixup_paras_helper(doc, description)
|
|
|
|
|
|
def fixup_paras_helper(doc, container, depth=0):
|
|
# document is already normalized
|
|
children = container.childNodes
|
|
start = skip_leading_nodes(children)
|
|
while len(children) > start:
|
|
if children[start].get_nodeName() in RECURSE_INTO_PARA_CONTAINERS:
|
|
# Something to recurse into:
|
|
fixup_paras_helper(doc, children[start])
|
|
else:
|
|
# Paragraph material:
|
|
build_para(doc, container, start, len(children))
|
|
if DEBUG_PARA_FIXER and depth == 10:
|
|
sys.exit(1)
|
|
start = skip_leading_nodes(children, start + 1)
|
|
|
|
|
|
def build_para(doc, parent, start, i):
|
|
children = parent.childNodes
|
|
after = start + 1
|
|
have_last = 0
|
|
BREAK_ELEMENTS = PARA_LEVEL_ELEMENTS + RECURSE_INTO_PARA_CONTAINERS
|
|
# Collect all children until \n\n+ is found in a text node or a
|
|
# member of BREAK_ELEMENTS is found.
|
|
for j in range(start, i):
|
|
after = j + 1
|
|
child = children[j]
|
|
nodeType = child.nodeType
|
|
if nodeType == ELEMENT:
|
|
if child.get_tagName() in BREAK_ELEMENTS:
|
|
after = j
|
|
break
|
|
elif nodeType == TEXT:
|
|
pos = string.find(child.data, "\n\n")
|
|
if pos == 0:
|
|
after = j
|
|
break
|
|
if pos >= 1:
|
|
child.splitText(pos)
|
|
break
|
|
else:
|
|
have_last = 1
|
|
if (start + 1) > after:
|
|
raise ConversionError(
|
|
"build_para() could not identify content to turn into a paragraph")
|
|
if children[after - 1].nodeType == TEXT:
|
|
# we may need to split off trailing white space:
|
|
child = children[after - 1]
|
|
data = child.data
|
|
if string.rstrip(data) != data:
|
|
have_last = 0
|
|
child.splitText(len(string.rstrip(data)))
|
|
para = doc.createElement(PARA_ELEMENT)
|
|
prev = None
|
|
indexes = range(start, after)
|
|
indexes.reverse()
|
|
for j in indexes:
|
|
node = parent.childNodes[j]
|
|
parent.removeChild(node)
|
|
para.insertBefore(node, prev)
|
|
prev = node
|
|
if have_last:
|
|
parent.appendChild(para)
|
|
parent.appendChild(doc.createTextNode("\n\n"))
|
|
return len(parent.childNodes)
|
|
else:
|
|
nextnode = parent.childNodes[start]
|
|
if nextnode.nodeType == TEXT:
|
|
if nextnode.data and nextnode.data[0] != "\n":
|
|
nextnode.data = "\n" + nextnode.data
|
|
else:
|
|
newnode = doc.createTextNode("\n")
|
|
parent.insertBefore(newnode, nextnode)
|
|
nextnode = newnode
|
|
start = start + 1
|
|
parent.insertBefore(para, nextnode)
|
|
return start + 1
|
|
|
|
|
|
def skip_leading_nodes(children, start=0):
|
|
"""Return index into children of a node at which paragraph building should
|
|
begin or a recursive call to fixup_paras_helper() should be made (for
|
|
subsections, etc.).
|
|
|
|
When the return value >= len(children), we've built all the paras we can
|
|
from this list of children.
|
|
"""
|
|
i = len(children)
|
|
while i > start:
|
|
# skip over leading comments and whitespace:
|
|
child = children[start]
|
|
nodeType = child.nodeType
|
|
if nodeType == TEXT:
|
|
data = child.data
|
|
shortened = string.lstrip(data)
|
|
if shortened:
|
|
if data != shortened:
|
|
# break into two nodes: whitespace and non-whitespace
|
|
child.splitText(len(data) - len(shortened))
|
|
return start + 1
|
|
return start
|
|
# all whitespace, just skip
|
|
elif nodeType == ELEMENT:
|
|
tagName = child.get_tagName()
|
|
if tagName in RECURSE_INTO_PARA_CONTAINERS:
|
|
return start
|
|
if tagName not in PARA_LEVEL_ELEMENTS + PARA_LEVEL_PRECEEDERS:
|
|
return start
|
|
start = start + 1
|
|
return start
|
|
|
|
|
|
def fixup_rfc_references(doc, fragment):
|
|
for rfcnode in find_all_elements(fragment, "rfc"):
|
|
rfcnode.appendChild(doc.createTextNode(
|
|
"RFC " + rfcnode.getAttribute("num")))
|
|
|
|
|
|
def fixup_signatures(doc, fragment):
|
|
for child in fragment.childNodes:
|
|
if child.nodeType == ELEMENT:
|
|
args = child.getElementsByTagName("args")
|
|
for arg in args:
|
|
fixup_args(doc, arg)
|
|
arg.normalize()
|
|
args = child.getElementsByTagName("constructor-args")
|
|
for arg in args:
|
|
fixup_args(doc, arg)
|
|
arg.normalize()
|
|
|
|
|
|
def fixup_args(doc, arglist):
|
|
for child in arglist.childNodes:
|
|
if child.get_nodeName() == "optional":
|
|
# found it; fix and return
|
|
arglist.insertBefore(doc.createTextNode("["), child)
|
|
optkids = child.childNodes
|
|
while optkids:
|
|
k = optkids[0]
|
|
child.removeChild(k)
|
|
arglist.insertBefore(k, child)
|
|
arglist.insertBefore(doc.createTextNode("]"), child)
|
|
arglist.removeChild(child)
|
|
return fixup_args(doc, arglist)
|
|
|
|
|
|
def fixup_sectionauthors(doc, fragment):
|
|
for sectauth in find_all_elements(fragment, "sectionauthor"):
|
|
section = sectauth.parentNode
|
|
section.removeChild(sectauth)
|
|
sectauth._node.name = "author"
|
|
sectauth.appendChild(doc.createTextNode(
|
|
sectauth.getAttribute("name")))
|
|
sectauth.removeAttribute("name")
|
|
after = section.childNodes[2]
|
|
title = section.childNodes[1]
|
|
if title.get_nodeName() != "title":
|
|
after = section.childNodes[0]
|
|
section.insertBefore(doc.createTextNode("\n "), after)
|
|
section.insertBefore(sectauth, after)
|
|
|
|
|
|
def fixup_verbatims(doc):
|
|
for verbatim in find_all_elements(doc, "verbatim"):
|
|
child = verbatim.childNodes[0]
|
|
if child.nodeType == TEXT \
|
|
and string.lstrip(child.data)[:3] == ">>>":
|
|
verbatim._node.name = "interactive-session"
|
|
|
|
|
|
def add_node_ids(fragment, counter=0):
|
|
fragment._node.node_id = counter
|
|
for node in fragment.childNodes:
|
|
counter = counter + 1
|
|
if node.nodeType == ELEMENT:
|
|
counter = add_node_ids(node, counter)
|
|
else:
|
|
node._node.node_id = counter
|
|
return counter + 1
|
|
|
|
|
|
REFMODINDEX_ELEMENTS = ('refmodindex', 'refbimodindex',
|
|
'refexmodindex', 'refstmodindex')
|
|
|
|
def fixup_refmodindexes(fragment):
|
|
# Locate <ref*modindex>...</> co-located with <module>...</>, and
|
|
# remove the <ref*modindex>, replacing it with index=index on the
|
|
# <module> element.
|
|
nodes = find_all_elements_from_set(fragment, REFMODINDEX_ELEMENTS)
|
|
d = {}
|
|
for node in nodes:
|
|
parent = node.parentNode
|
|
d[parent._node.node_id] = parent
|
|
del nodes
|
|
map(fixup_refmodindexes_chunk, d.values())
|
|
|
|
|
|
def fixup_refmodindexes_chunk(container):
|
|
# node is probably a <para>; let's see how often it isn't:
|
|
if container.get_tagName() != PARA_ELEMENT:
|
|
bwrite("--- fixup_refmodindexes_chunk(%s)\n" % container)
|
|
module_entries = find_all_elements(container, "module")
|
|
if not module_entries:
|
|
return
|
|
index_entries = find_all_elements_from_set(container, REFMODINDEX_ELEMENTS)
|
|
removes = []
|
|
for entry in index_entries:
|
|
children = entry.childNodes
|
|
if len(children) != 0:
|
|
bwrite("--- unexpected number of children for %s node:\n"
|
|
% entry.get_tagName())
|
|
ewrite(entry.toxml() + "\n")
|
|
continue
|
|
found = 0
|
|
module_name = entry.getAttribute("module")
|
|
for node in module_entries:
|
|
if len(node.childNodes) != 1:
|
|
continue
|
|
this_name = node.childNodes[0].data
|
|
if this_name == module_name:
|
|
found = 1
|
|
node.setAttribute("index", "yes")
|
|
if found:
|
|
removes.append(entry)
|
|
for node in removes:
|
|
container.removeChild(node)
|
|
|
|
|
|
def fixup_bifuncindexes(fragment):
|
|
nodes = find_all_elements(fragment, 'bifuncindex')
|
|
d = {}
|
|
# make sure that each parent is only processed once:
|
|
for node in nodes:
|
|
parent = node.parentNode
|
|
d[parent._node.node_id] = parent
|
|
del nodes
|
|
map(fixup_bifuncindexes_chunk, d.values())
|
|
|
|
|
|
def fixup_bifuncindexes_chunk(container):
|
|
removes = []
|
|
entries = find_all_child_elements(container, "bifuncindex")
|
|
function_entries = find_all_child_elements(container, "function")
|
|
for entry in entries:
|
|
function_name = entry.getAttribute("name")
|
|
found = 0
|
|
for func_entry in function_entries:
|
|
t2 = func_entry.childNodes[0].data
|
|
if t2[-2:] != "()":
|
|
continue
|
|
t2 = t2[:-2]
|
|
if t2 == function_name:
|
|
func_entry.setAttribute("index", "yes")
|
|
func_entry.setAttribute("module", "__builtin__")
|
|
if not found:
|
|
found = 1
|
|
removes.append(entry)
|
|
for entry in removes:
|
|
container.removeChild(entry)
|
|
|
|
|
|
def join_adjacent_elements(container, gi):
|
|
queue = [container]
|
|
while queue:
|
|
parent = queue.pop()
|
|
i = 0
|
|
children = parent.get_childNodes()
|
|
nchildren = len(children)
|
|
while i < (nchildren - 1):
|
|
child = children[i]
|
|
if child.nodeName == gi:
|
|
if children[i+1].nodeName == gi:
|
|
ewrite("--- merging two <%s/> elements\n" % gi)
|
|
child = children[i]
|
|
nextchild = children[i+1]
|
|
nextchildren = nextchild.get_childNodes()
|
|
while len(nextchildren):
|
|
node = nextchildren[0]
|
|
nextchild.removeChild(node)
|
|
child.appendChild(node)
|
|
parent.removeChild(nextchild)
|
|
continue
|
|
if child.nodeType == ELEMENT:
|
|
queue.append(child)
|
|
i = i + 1
|
|
|
|
|
|
_token_rx = re.compile(r"[a-zA-Z][a-zA-Z0-9.-]*$")
|
|
|
|
def write_esis(doc, ofp, knownempty):
|
|
for node in doc.childNodes:
|
|
nodeType = node.nodeType
|
|
if nodeType == ELEMENT:
|
|
gi = node.get_tagName()
|
|
if knownempty(gi):
|
|
if node.hasChildNodes():
|
|
raise ValueError, \
|
|
"declared-empty node <%s> has children" % gi
|
|
ofp.write("e\n")
|
|
for k, v in node.attributes.items():
|
|
value = v.value
|
|
if _token_rx.match(value):
|
|
dtype = "TOKEN"
|
|
else:
|
|
dtype = "CDATA"
|
|
ofp.write("A%s %s %s\n" % (k, dtype, esistools.encode(value)))
|
|
ofp.write("(%s\n" % gi)
|
|
write_esis(node, ofp, knownempty)
|
|
ofp.write(")%s\n" % gi)
|
|
elif nodeType == TEXT:
|
|
ofp.write("-%s\n" % esistools.encode(node.data))
|
|
elif nodeType == ENTITY_REFERENCE:
|
|
ofp.write("&%s\n" % node.get_nodeName())
|
|
else:
|
|
raise RuntimeError, "unsupported node type: %s" % nodeType
|
|
|
|
|
|
def convert(ifp, ofp):
|
|
p = esistools.ExtendedEsisBuilder()
|
|
p.feed(ifp.read())
|
|
doc = p.document
|
|
fragment = p.fragment
|
|
normalize(fragment)
|
|
simplify(doc, fragment)
|
|
handle_labels(doc, fragment)
|
|
handle_appendix(doc, fragment)
|
|
fixup_trailing_whitespace(doc, {
|
|
"abstract": "\n",
|
|
"title": "",
|
|
"chapter": "\n\n",
|
|
"section": "\n\n",
|
|
"subsection": "\n\n",
|
|
"subsubsection": "\n\n",
|
|
"paragraph": "\n\n",
|
|
"subparagraph": "\n\n",
|
|
})
|
|
cleanup_root_text(doc)
|
|
cleanup_trailing_parens(fragment, ["function", "method", "cfunction"])
|
|
cleanup_synopses(doc, fragment)
|
|
fixup_descriptors(doc, fragment)
|
|
fixup_verbatims(fragment)
|
|
normalize(fragment)
|
|
fixup_paras(doc, fragment)
|
|
fixup_sectionauthors(doc, fragment)
|
|
fixup_table_structures(doc, fragment)
|
|
fixup_rfc_references(doc, fragment)
|
|
fixup_signatures(doc, fragment)
|
|
add_node_ids(fragment)
|
|
fixup_refmodindexes(fragment)
|
|
fixup_bifuncindexes(fragment)
|
|
# Take care of ugly hacks in the LaTeX markup to avoid LaTeX and
|
|
# LaTeX2HTML screwing with GNU-style long options (the '--' problem).
|
|
join_adjacent_elements(fragment, "option")
|
|
#
|
|
d = {}
|
|
for gi in p.get_empties():
|
|
d[gi] = gi
|
|
if d.has_key("rfc"):
|
|
del d["rfc"]
|
|
knownempty = d.has_key
|
|
#
|
|
try:
|
|
write_esis(fragment, ofp, knownempty)
|
|
except IOError, (err, msg):
|
|
# Ignore EPIPE; it just means that whoever we're writing to stopped
|
|
# reading. The rest of the output would be ignored. All other errors
|
|
# should still be reported,
|
|
if err != errno.EPIPE:
|
|
raise
|
|
|
|
|
|
def main():
|
|
if len(sys.argv) == 1:
|
|
ifp = sys.stdin
|
|
ofp = sys.stdout
|
|
elif len(sys.argv) == 2:
|
|
ifp = open(sys.argv[1])
|
|
ofp = sys.stdout
|
|
elif len(sys.argv) == 3:
|
|
ifp = open(sys.argv[1])
|
|
ofp = open(sys.argv[2], "w")
|
|
else:
|
|
usage()
|
|
sys.exit(2)
|
|
convert(ifp, ofp)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|