初始化项目，由ModelHub XC社区提供模型

Model: zstanjj/HTML-Pruner-Phi-3.8B
Source: Original Platform

tree_gen_utils.py

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+from collections import defaultdict
+from typing import List, Tuple
+
+import numpy as np
+from anytree import Node, RenderTree
+import bs4
+from anytree import PreOrderIter
+from anytree.exporter import DotExporter
+
+
+def nodenamefunc(node):
+    return f"{node.name}|{node.prob}|{node.input_ids}"
+
+
+class TokenDotExporter(DotExporter):
+    def __init__(self, node, **kwargs):
+        super().__init__(node, **kwargs)
+
+    def __iter__(self):
+        # prepare
+        indent = " " * self.indent
+        nodenamefunc = self.nodenamefunc or self._default_nodenamefunc
+        nodeattrfunc = self.nodeattrfunc or self._default_nodeattrfunc
+        edgeattrfunc = self.edgeattrfunc or self._default_edgeattrfunc
+        edgetypefunc = self.edgetypefunc or self._default_edgetypefunc
+        filter_ = self.filter_ or self._default_filter
+        return self.__iter(indent, nodenamefunc, nodeattrfunc, edgeattrfunc, edgetypefunc, filter_)
+
+    def __iter_nodes(self, indent, nodenamefunc, nodeattrfunc, filter_):
+        for node in PreOrderIter(self.node, filter_=filter_, stop=self.stop, maxlevel=self.maxlevel):
+            nodename = nodenamefunc(node)
+            nodeattr = nodeattrfunc(node)
+            nodeattr = " {%s}" % nodeattr if nodeattr is not None else ""
+            yield '%s%s' % (DotExporter.esc(nodename), nodeattr)
+
+    def __iter(self, indent, nodenamefunc, nodeattrfunc, edgeattrfunc, edgetypefunc, filter_):
+        for node in self.__iter_nodes(indent, nodenamefunc, nodeattrfunc, filter_):
+            yield node
+
+
+class TokenIdNode(Node):
+    def __init__(self, name, parent=None, children=None, **kwargs):
+        super().__init__(name, parent, children, **kwargs)
+        self.input_ids = kwargs.get('input_ids', [])
+        self.prob = kwargs.get('prob', np.float32(0.0))
+
+
+def split_tree(soup: bs4.BeautifulSoup, max_node_words=0) -> List[Tuple[bs4.element.Tag, List[str], bool]]:
+    word_count = len(soup.get_text().split())
+    if word_count > max_node_words:
+        possible_trees = [(soup, [])]
+        target_trees = []  # [(tag, path, is_leaf)]
+        #  split the entire dom tee into subtrees, until the length of the subtree is less than max_node_words words
+        #  find all possible trees
+        while True:
+            if len(possible_trees) == 0:
+                break
+            tree = possible_trees.pop(0)
+            tag_children = defaultdict(int)
+            bare_word_count = 0
+            #  count child tags
+            for child in tree[0].contents:
+                if isinstance(child, bs4.element.Tag):
+                    tag_children[child.name] += 1
+            _tag_children = {k: 0 for k in tag_children.keys()}
+
+            #  check if the tree can be split
+            for child in tree[0].contents:
+                if isinstance(child, bs4.element.Tag):
+                    #  change child tag with duplicate names
+                    if tag_children[child.name] > 1:
+                        new_name = f"{child.name}{_tag_children[child.name]}"
+                        new_tree = (child, tree[1] + [new_name])
+                        _tag_children[child.name] += 1
+                        child.name = new_name
+                    else:
+                        new_tree = (child, tree[1] + [child.name])
+                    word_count = len(child.get_text().split())
+                    #  add node with more than max_node_words words, and recursion depth is less than 64
+                    if word_count > max_node_words and len(new_tree[1]) < 64:
+                        possible_trees.append(new_tree)
+                    else:
+                        target_trees.append((new_tree[0], new_tree[1], True))
+                else:
+                    bare_word_count += len(str(child).split())
+
+            #  add leaf node
+            if len(tag_children) == 0:
+                target_trees.append((tree[0], tree[1], True))
+            #  add node with more than max_node_words bare words
+            elif bare_word_count > max_node_words:
+                target_trees.append((tree[0], tree[1], False))
+    else:
+        soup_children = [c for c in soup.contents if isinstance(c, bs4.element.Tag)]
+        if len(soup_children) == 1:
+            target_trees = [(soup_children[0], [soup_children[0].name], True)]
+        else:
+            # add an html tag to wrap all children
+            new_soup = bs4.BeautifulSoup("", 'html.parser')
+            new_tag = new_soup.new_tag("html")
+            new_soup.append(new_tag)
+            for child in soup_children:
+                new_tag.append(child)
+            target_trees = [(new_tag, ["html"], True)]
+    return target_trees
+