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""" |
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SDoc |
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Copyright 2016 Set Based IT Consultancy |
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Licence MIT |
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""" |
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# ---------------------------------------------------------------------------------------------------------------------- |
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import abc |
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from sdoc.sdoc2 import in_scope, out_scope, node_store |
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class Node: |
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""" |
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Abstract class for SDoc2 nodes. |
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""" |
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# ------------------------------------------------------------------------------------------------------------------ |
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def __init__(self, name, options=None, argument=''): |
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""" |
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Object constructor. |
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:param str name: The (command) name of this node. |
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:param dict[str,str] options: The options of this node. |
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:param str argument: The argument of this node (inline commands only). |
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""" |
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self.id = 0 |
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""" |
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The ID of this SDoc2 node. |
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:type: int |
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""" |
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self.name = name |
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""" |
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The (command) name of this node. |
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:type: str |
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""" |
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self._argument = argument |
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""" |
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The argument of this node (inline commands only). |
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:type: str |
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""" |
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self._options = options if options else {} |
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""" |
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The options of this node. |
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:type: dict[str,int|str] |
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""" |
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self.child_nodes = [] |
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""" |
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The ID's of the SDoc2 child nodes of this SDoc2 node. |
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:type: list[int] |
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""" |
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self.position = None |
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""" |
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The position where this node is defined. |
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:type: None|sdoc.sdoc2.Position.Position |
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""" |
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self.labels = [] |
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""" |
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The list of labels in the node. |
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:type: |
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""" |
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# ------------------------------------------------------------------------------------------------------------------ |
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@property |
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def argument(self): |
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""" |
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Getter for argument. |
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:rtype: str |
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""" |
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return self._argument |
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# ------------------------------------------------------------------------------------------------------------------ |
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@argument.setter |
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def argument(self, new_argument): |
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""" |
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Setter for argument. |
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:param str new_argument: The new argument. |
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""" |
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self._argument = new_argument |
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# ------------------------------------------------------------------------------------------------------------------ |
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def print_info(self, level): |
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""" |
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Temp function for development. |
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:param int level: the level of block commands. |
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""" |
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print("{0!s}{1:4d} {2!s}".format(' ' * 4 * level, self.id, self.name)) |
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for node_id in self.child_nodes: |
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node = in_scope(node_id) |
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node.print_info(level + 1) |
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out_scope(node) |
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# ------------------------------------------------------------------------------------------------------------------ |
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def get_hierarchy_name(self): |
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""" |
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Returns the hierarchy name if this node is a part of a hierarchy. Otherwise returns False. |
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:rtype: str|bool |
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""" |
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return False |
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# ------------------------------------------------------------------------------------------------------------------ |
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@abc.abstractmethod |
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def get_command(self): |
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""" |
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Returns command of this node. |
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:rtype: str |
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""" |
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raise NotImplementedError() |
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# ------------------------------------------------------------------------------------------------------------------ |
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def get_hierarchy_level(self, parent_hierarchy_level=-1): |
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""" |
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Returns the hierarchy level if this node is a part of a hierarchy. |
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:param int parent_hierarchy_level: The hierarchy level of the parent node in the same hierarchy. |
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:rtype: int |
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""" |
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raise RuntimeError("This method MUST only be called when a node is a part of an hierarchy.") |
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# ------------------------------------------------------------------------------------------------------------------ |
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def get_option_value(self, option_name): |
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""" |
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Returns the value of an option. Returns None if the option is not set. |
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:param str option_name: The name of the option. |
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:rtype: str |
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""" |
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return self._options[option_name] if option_name in self._options else None |
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# ------------------------------------------------------------------------------------------------------------------ |
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def set_option_value(self, option, value): |
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""" |
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Sets value for option. |
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:param str option: The name of an option |
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:param mixed value: The value of an option |
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""" |
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self._options[option] = value |
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# ------------------------------------------------------------------------------------------------------------------ |
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@abc.abstractmethod |
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def is_block_command(self): |
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""" |
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Returns True if this node is created by a block command. Otherwise returns False. |
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:rtype: bool |
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""" |
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raise NotImplementedError() |
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# ------------------------------------------------------------------------------------------------------------------ |
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def is_document_root(self): |
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""" |
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Returns True if this node is a document root node. Otherwise returns False. |
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:rtype: bool |
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""" |
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return False |
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# ------------------------------------------------------------------------------------------------------------------ |
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def is_hierarchy_root(self): |
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""" |
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Returns True if this node can be the root of a hierarchy. Otherwise returns False. |
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:rtype: bool |
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""" |
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return False |
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# ------------------------------------------------------------------------------------------------------------------ |
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@abc.abstractmethod |
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def is_inline_command(self): |
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""" |
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Returns True if this node is created by a inline command. Otherwise returns False. |
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:rtype: bool |
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""" |
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raise NotImplementedError() |
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# ------------------------------------------------------------------------------------------------------------------ |
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def is_phrasing(self): |
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""" |
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Returns True if this node is a phrasing node, i.e. is a part of a paragraph. Otherwise returns False. |
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:rtype: bool |
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""" |
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return False |
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# ------------------------------------------------------------------------------------------------------------------ |
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def is_list_element(self): |
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""" |
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Returns True if this node is a list element, e.g. an item in itemize. Otherwise returns False. |
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:rtype: bool |
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""" |
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return False |
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# ------------------------------------------------------------------------------------------------------------------ |
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def append_child_node(self, child_node): |
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""" |
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Appends a child node to the list of child nodes of the node. |
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:param sdoc.sdoc2.node.Node.Node child_node: The new child node |
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""" |
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self.child_nodes.append(child_node.id) |
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# ------------------------------------------------------------------------------------------------------------------ |
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def prepare_content_tree(self): |
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""" |
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Prepares this node for further processing. |
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""" |
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for node_id in self.child_nodes: |
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node = in_scope(node_id) |
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node.prepare_content_tree() |
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out_scope(node) |
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# ------------------------------------------------------------------------------------------------------------------ |
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def number(self, numbers): |
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""" |
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Numbers all numerable nodes such as chapters, sections, figures, and, items. |
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:param numbers: The current numbers. |
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""" |
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for node_id in self.child_nodes: |
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node = in_scope(node_id) |
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node.number(numbers) |
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out_scope(node) |
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# ------------------------------------------------------------------------------------------------------------------ |
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def get_enumerated_items(self): |
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""" |
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Returns a list with a tuple with command and number of enumerated child nodes. |
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Thi method is intended for unit test only. |
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:rtype: list[(str,str)] |
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""" |
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items = list() |
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# First append the enumeration of this node (if any). |
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if 'number' in self._options: |
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items.append((self.get_command(), self._options['number'], self._argument)) |
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# Second append the enumeration of child nodes (if any). |
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for node_id in self.child_nodes: |
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node = in_scope(node_id) |
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tmp = node.get_enumerated_items() |
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if tmp: |
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items.append(tmp) |
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out_scope(node) |
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return items |
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# ------------------------------------------------------------------------------------------------------------------ |
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def parse_labels(self): |
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""" |
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Parses all labels and call methods to collect labels.and for |
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""" |
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self.modify_label_list() |
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if self.labels: |
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self.set_id_heading_node() |
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# ------------------------------------------------------------------------------------------------------------------ |
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def modify_label_list(self): |
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""" |
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Creates label list for each heading node, and for node_store. Removes label nodes from child list. |
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""" |
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for node_id in self.child_nodes: |
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node = in_scope(node_id) |
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if node.get_command() == 'label': |
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# Appending in Node labels list. |
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self.labels.append(node.id) |
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self.append_label_list_in_node_store(node) |
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if self.get_option_value('number'): |
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label_arg = self.get_option_value('number') |
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title_attribute = self.argument |
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else: |
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label_arg = self.argument |
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title_attribute = None |
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node_store.labels[node.argument] = {'argument': label_arg, |
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'title': title_attribute} |
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# Removing node from child nodes. |
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self.child_nodes.remove(node.id) |
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node.parse_labels() |
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out_scope(node) |
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# ------------------------------------------------------------------------------------------------------------------ |
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def append_label_list_in_node_store(self, node): |
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""" |
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Appending in NodeStore labels list. |
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:param sdoc.sdoc2.node.Node.Node node: The current node. |
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""" |
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if node.argument not in node_store.labels: |
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if self.argument: |
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node_store.labels[node.argument] = self.argument |
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else: |
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if 'number' in self._options: |
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node_store.labels[node.argument] = self._options['number'] |
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else: |
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node_store.labels[node.argument] = node.argument |
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else: |
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# @todo log definitions of both labels |
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raise NameError('Duplicate label', node.argument) |
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# ------------------------------------------------------------------------------------------------------------------ |
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def set_id_heading_node(self): |
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""" |
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Sets id to heading node. (Argument of first label) |
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""" |
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node = in_scope(self.labels[0]) |
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self._options['id'] = node.argument |
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out_scope(node) |
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# ------------------------------------------------------------------------------------------------------------------ |
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def change_ref_argument(self): |
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""" |
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Changes reference argument on number of depending heading node. |
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""" |
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for node_id in self.child_nodes: |
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node = in_scope(node_id) |
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if node.argument in node_store.labels and node.get_command() == 'ref': |
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node.set_option_value('href', '#{0}'.format(node.argument)) |
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if node_store.labels[node.argument]['title']: |
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node.set_option_value('title', node_store.labels[node.argument]['title']) |
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node.argument = node_store.labels[node.argument]['argument'] |
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node.change_ref_argument() |
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out_scope(node) |
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# ---------------------------------------------------------------------------------------------------------------------- |
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