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75 lines
2.6 KiB
Python
75 lines
2.6 KiB
Python
"""PPT parser.
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Contains parsers for presentation (.pptx) files to extract slide text.
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"""
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from pathlib import Path
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from typing import Any, Dict, List, Union
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from application.parser.file.base_parser import BaseParser
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class PPTXParser(BaseParser):
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r"""PPTX (.pptx) parser for extracting text from PowerPoint slides.
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Args:
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concat_slides (bool): Specifies whether to concatenate all slide text into one document.
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- If True, slide texts will be joined together as a single string.
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- If False, each slide's text will be stored as a separate entry in a list.
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Set to True by default.
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slide_separator (str): Separator used to join slides' text content.
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Only used when `concat_slides=True`. Default is "\n".
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Refer to https://python-pptx.readthedocs.io/en/latest/ for more information.
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"""
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def __init__(
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self,
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*args: Any,
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concat_slides: bool = True,
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slide_separator: str = "\n",
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**kwargs: Any
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) -> None:
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"""Init params."""
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super().__init__(*args, **kwargs)
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self._concat_slides = concat_slides
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self._slide_separator = slide_separator
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def _init_parser(self) -> Dict:
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"""Init parser."""
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return {}
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def parse_file(self, file: Path, errors: str = "ignore") -> Union[str, List[str]]:
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r"""
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Parse a .pptx file and extract text from each slide.
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Args:
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file (Path): Path to the .pptx file.
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errors (str): Error handling policy ('ignore' by default).
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Returns:
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Union[str, List[str]]: Concatenated text if concat_slides is True,
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otherwise a list of slide texts.
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"""
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try:
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from pptx import Presentation
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except ImportError:
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raise ImportError("pptx module is required to read .PPTX files.")
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try:
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presentation = Presentation(file)
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slide_texts=[]
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# Iterate over each slide in the presentation
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for slide in presentation.slides:
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slide_text=""
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# Iterate over each shape in the slide
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for shape in slide.shapes:
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# Check if the shape has a 'text' attribute and append that to the slide_text
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if hasattr(shape,"text"):
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slide_text+=shape.text
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slide_texts.append(slide_text.strip())
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if self._concat_slides:
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return self._slide_separator.join(slide_texts)
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else:
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return slide_texts
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except Exception as e:
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raise e |