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| import spacy | |
| import subprocess | |
| from typing import Tuple | |
| from spacy import displacy | |
| from anytree import Node, RenderTree | |
| class Pipeline: | |
| def __init__( | |
| self | |
| ) -> None: | |
| self.nlp = None | |
| self.__ch_html_tree = None | |
| self.__ch_str_tree = None | |
| self.__ch_sentence = None | |
| self.__init_nlp(model="en_core_web_md") | |
| def __init_nlp( | |
| self, | |
| model: str | |
| ) -> None: | |
| self.nlp = None | |
| try: | |
| self.nlp = spacy.load(model) | |
| except: | |
| print(f"* Downloading {model} model...") | |
| _ = subprocess.Popen( | |
| f"python -m spacy download {model}", | |
| stdout=subprocess.PIPE, | |
| shell=True | |
| ).communicate() | |
| self.nlp = spacy.load(model) | |
| def __postag( | |
| self, | |
| tk: str | |
| ) -> str: | |
| tag = "" | |
| plural_tags = ["NNS", "NNPS"] | |
| if tk.tag_ in plural_tags: | |
| tag = " ({}) (Plural)".format(tk.tag_) | |
| else: | |
| tag = " ({})".format(tk.tag_) | |
| return tag | |
| def __genSyntacticTree( | |
| self, | |
| expr: str | |
| ) -> Tuple[str,str]: | |
| doc = self.nlp(expr) | |
| root = next(doc.sents).root | |
| node = Node("" + root.text + ": (Root)" + self.__postag(root), parent=None) | |
| def tree( | |
| tk: str, | |
| last_node: Node, | |
| depth: int | |
| ) -> None: | |
| if tk.n_lefts + tk.n_rights > 0: | |
| for child in tk.children: | |
| tree( | |
| child, | |
| Node( | |
| "" + child.text + ": " + str(depth + 1) + self.__postag(child), | |
| parent=last_node | |
| ), | |
| depth+1 | |
| ) | |
| tree(root, node, 0) | |
| syntactic_str_tree = "" | |
| for pre, fill, node in RenderTree(node): | |
| syntactic_str_tree += """{}{}\n""".format(pre, node.name) | |
| syntactic_tree = displacy.render(doc, style='dep', options={'distance': 100}) | |
| syntactic_html_tree = f""" | |
| <center> | |
| <div style='max-width: 800px; overflow-x:auto;'> | |
| {syntactic_tree} | |
| </div> | |
| </center> | |
| """ | |
| return syntactic_html_tree, syntactic_str_tree | |
| def compute( | |
| self, | |
| sentence: str | |
| ) -> Tuple[str,str,str]: | |
| error = "" | |
| error_template = """ | |
| <center> | |
| <div class="alert alert-warning" role="alert"> | |
| <h6><b>{}</b></h6> | |
| </div> | |
| </center> | |
| """ | |
| if sentence.strip() == "": | |
| error = error_template.format("The sentence can not be empty!") | |
| return error, "", "" | |
| if sentence != self.__ch_sentence: | |
| self.__ch_sentence = sentence | |
| self.__ch_html_tree, self.__ch_str_tree = self.__genSyntacticTree(sentence) | |
| return error, self.__ch_html_tree, self.__ch_str_tree |