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| from html.parser import HTMLParser | |
| def default_read_file(path): | |
| with open(path, "r") as f: | |
| return f.read() | |
| enable_tags = ["demo", "demo-prefix", "demo-suffix", "file"] | |
| class MarkdownParser(HTMLParser): | |
| def __init__(self, read_file=None): | |
| super().__init__() | |
| self.value = [{"type": "text", "value": ""}] | |
| self.tag_stack = [] | |
| self.read_file = read_file or default_read_file | |
| self.current_tag = None | |
| def get_value(self): | |
| return self.value | |
| def handle_data(self, data: str) -> None: | |
| if self.value[-1]["type"] == "text": | |
| self.value[-1]["value"] += data | |
| elif self.current_tag is None: | |
| self.value.append({"type": "text", "value": data}) | |
| elif self.current_tag == "demo-prefix": | |
| self.value[-1]["prefix"] += data | |
| elif self.current_tag == "demo-suffix": | |
| self.value[-1]["suffix"] += data | |
| def handle_startendtag(self, tag: str, | |
| attrs: list[tuple[str, str | None]]) -> None: | |
| if tag not in enable_tags: | |
| self.handle_data(self.get_starttag_text()) | |
| return | |
| def handle_starttag(self, tag: str, | |
| attrs: list[tuple[str, str | None]]) -> None: | |
| if (tag not in enable_tags): | |
| self.handle_data(self.get_starttag_text()) | |
| return | |
| if tag == "demo": | |
| self.value.append({ | |
| "type": "demo", | |
| "name": dict(attrs)["name"], | |
| "prefix": "", | |
| "suffix": "" | |
| }) | |
| elif tag == "file": | |
| content = self.read_file(dict(attrs)["src"]) | |
| if self.value[-1]["type"] == "text": | |
| self.value[-1]["value"] += content | |
| elif self.current_tag == "demo-prefix": | |
| self.value[-1]["prefix"] += content | |
| elif self.current_tag == "demo-suffix": | |
| self.value[-1]["suffix"] += content | |
| self.current_tag = tag | |
| self.tag_stack.append(self.current_tag) | |
| def handle_endtag(self, tag: str) -> None: | |
| if (tag not in enable_tags): | |
| self.handle_data(f"</{tag}>") | |
| return | |
| if (len(self.tag_stack) > 0): | |
| self.tag_stack.pop() | |
| if (len(self.tag_stack) > 0): | |
| self.current_tag = self.tag_stack[-1] | |
| else: | |
| self.current_tag = None | |
| else: | |
| self.current_tag = None | |
| def parse_markdown(markdown: str, read_file=None): | |
| parser = MarkdownParser(read_file=read_file) | |
| parser.feed(markdown) | |
| return parser.get_value() | |