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import re
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from bs4 import BeautifulSoup
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from markdownify import MarkdownConverter
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def stripMarkdown(text):
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# Remove headers
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text = re.sub(r'#+(\s+)', r'\1', text)
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# Remove emphasis
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text = re.sub(r'\*\*(.*?)\*\*', r'\1', text)
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text = re.sub(r'\*(.*?)\*', r'\1', text)
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text = re.sub(r'__(.*?)__', r'\1', text)
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text = re.sub(r'_(.*?)_', r'\1', text)
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# Remove code blocks
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text = re.sub(r'```(.*?)```', r' \1 ', text, flags=re.DOTALL)
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# Remove inline code
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text = re.sub(r'`(.*?)`', r' \1 ', text)
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# Remove links
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text = re.sub(r'\[(.*?)\]\(.*?\)', r'\1', text)
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return text.strip()
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# 句号列表
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stopList = ["。", "！", "？", ".", "!", "?"]
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def getWikiSentences(html, line_max_length=150):
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# Remove all new-line
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html = html.replace("\r", "").replace("\n", "")
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soup = BeautifulSoup(html, 'html.parser')
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parserOutput = soup.find(class_="mw-parser-output")
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# Remove <style>
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for style in parserOutput.find_all("style"):
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style.decompose()
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# Remove <caption> if empty
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for caption in parserOutput.find_all("caption"):
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if caption.string is None or caption.string.strip() == "":
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caption.decompose()
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mdContent = MarkdownConverter(heading_style="ATX", newline_style="BACKSLASH").convert_soup(parserOutput)
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titlePath = []
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currentDepth = 0
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docList = []
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for line in mdContent.split("\n"):
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line = line.strip()
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if line == "":
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continue
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if line[0] == "#":
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# Title
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depth = 0
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while line[depth] == "#":
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depth += 1
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if depth > currentDepth:
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for i in range(depth - currentDepth):
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titlePath.append(None)
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titlePath.append(line[depth:].strip())
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else:
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titlePath = titlePath[:depth]
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titlePath.append(line[depth:].strip())
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currentDepth = depth
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elif line[0] == "|" and line[-1] == "|":
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# Table
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continue
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else:
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if line[0] == ">":
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# Quote
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line = line[1:].strip()
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# Sentence
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titlePathStr = "/".join([title for title in titlePath if title is not None])
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if titlePathStr == "":
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titlePathStr = "简介"
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# Split line by stops
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sentences = re.split(r"([。！？.!?]+)", line)
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combinedSentences = []
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lineChunk = []
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lineLen = 0
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# Combine stops to previous sentence, and combine line untill line_max_length
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for i in range(len(sentences) - 1):
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if sentences[i] == "":
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continue
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if re.match(r"^[。！？.!?]+$", sentences[i + 1]):
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sentences[i] += sentences[i + 1]
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sentences[i + 1] = ""
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lineLen += len(sentences[i])
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if lineLen > line_max_length:
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combinedSentences.append("".join(lineChunk))
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lineChunk = []
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lineLen = len(sentences[i])
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lineChunk.append(sentences[i])
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if len(lineChunk) > 0:
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combinedSentences.append("".join(lineChunk))
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# generate doc list
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for text in combinedSentences:
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stripedText = stripMarkdown(text)
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stripedText = titlePathStr + ": " + stripedText
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text = titlePathStr + ": " + text
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# Strip markdown syntax
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doc = {
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"text": stripedText,
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"markdown": text,
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"text_len": len(stripedText),
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"markdown_len": len(text),
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}
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docList.append(doc)
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return docList
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