297 lines
9.6 KiB
Python
297 lines
9.6 KiB
Python
from typing import Any, ClassVar
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from dataclasses import dataclass
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import fitz
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class FitzBlockWrapper:
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def __init__(self, block):
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self.x0, self.y0, self.x1, \
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self.y1, self.text, \
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self.block_number, self.block_type = block
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self.x0 = int(self.x0)
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self.x1 = int(self.x1)
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self.y0 = int(self.y0)
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self.y1 = int(self.y1)
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self.block_number = int(self.block_number)
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self.block_type = int(self.block_type)
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def __str__(self):
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return str((
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self.x0, self.y0, self.x1, self.y1, self.text
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))
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def __repl__(self):
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return self.__str__()
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def words_in_superstring(words: list[str], superstring: str) -> bool:
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for word in words:
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if not str(word).lower() in str(superstring).lower():
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return False
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return True
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def split_by_lambda(arr: list[Any], func):
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output = []
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current = []
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for item in arr:
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if func(item):
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output.append(current)
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current = []
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else:
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current.append(item)
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output.append(current)
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return output
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def get_block_by_x_value(arr: list[FitzBlockWrapper], xvalue: int) -> FitzBlockWrapper:
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for item in arr:
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if item.x0 == xvalue:
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return item
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def remove_block_by_x_value(arr: list[FitzBlockWrapper], xvalue: int) -> list[FitzBlockWrapper]:
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return [i for i in arr if not i.x0 == xvalue]
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class CCEParserBase():
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section_page_words: ClassVar[list[str]]
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last_page_words: ClassVar[list[str]]
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split_leg_pages_needle: ClassVar[str]
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def __init__(self, document: fitz.Document):
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self.document = document
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self.__post_init__()
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def __post_init__(self):
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# run all the processing steps here
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self.parse_legislative_metablocks()
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def generate_section_markers(self) -> list[int]:
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"""
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In the YIG/MUN manuals, there's section markers that delineate between the different
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committees within the manual. Let's find those, and then the last legislative page.
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"""
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section_pages = []
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for page in self.document:
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text = page.get_text().encode("utf8")
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is_section_page = words_in_superstring(
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words = self.section_page_words,
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superstring = text
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)
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is_last_page = words_in_superstring(
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words = self.last_page_words,
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superstring = text
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)
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if is_section_page:
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section_pages.append(page.number)
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if is_last_page and len(section_pages) > 2:
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section_pages.append(page.number)
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return section_pages
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def get_legislative_pages(self):
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"""
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Generate the section markers, then fill in the pages between them.
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"""
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current = 0
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sections = self.generate_section_markers()
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legislative_pages: list[int] = []
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try:
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while True:
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legislative_pages += list(
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range(
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sections[current] + 1,
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sections[current + 1],
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1
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)
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)
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current += 1
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except IndexError:
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pass
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return legislative_pages
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def concat_blocks_for_leg_pages(self):
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"""
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From the legislative pages, concatenate the "blocks" of text in the PDF.
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"""
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blocks = []
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pages = [self.document.load_page(page_num) for page_num in self.get_legislative_pages()]
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for page in pages:
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block_info = [FitzBlockWrapper(block) for block in page.get_text("blocks")]
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blocks += block_info
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return blocks
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def split_leg_pages(self):
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"""
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We have the collection of legislative page text blocks. We need
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to split them now. We split on the text "71st General Assembly...
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Youth in Government"
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"""
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blocks = self.concat_blocks_for_leg_pages()
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# each item within splitted is called a "legislative meta-block"
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splitted = split_by_lambda(blocks, lambda x: self.split_leg_pages_needle in x.text)
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return splitted[1:] # there's an empty array at the beginning
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def handle_the_rest(self, the_rest):
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weird_character = u''
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another_weird_character = u'\uFFFd'
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splitted_by_weird = the_rest.replace(weird_character, another_weird_character).split(another_weird_character)
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title_content = ''.join(
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splitted_by_weird[0].split('\n')[:-1]
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).rstrip().lstrip()
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bill_text = [i.split('\n')[0][1:] for i in splitted_by_weird[1:]]
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return {
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"bill_text": '\n'.join(bill_text),
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"title": title_content
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}
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def parse_legislative_metablocks(self):
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output = []
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splitted = self.split_leg_pages()
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for legislative_text in splitted:
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# there are some blocks that contain just one value
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# and are aligned to some x value on the pdf
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# it's an easy way to extract stuff
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leg_code = get_block_by_x_value(legislative_text, 88).text.rstrip()
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try:
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school = get_block_by_x_value(legislative_text, 177).text.rstrip()
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except AttributeError:
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try:
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school = get_block_by_x_value(legislative_text, 186).text.rstrip()
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except AttributeError:
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school = "you tell me, man"
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try:
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sponsors = get_block_by_x_value(legislative_text, 163).text.rstrip()
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except AttributeError:
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try:
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sponsors = get_block_by_x_value(legislative_text, 166).text.rstrip()
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except AttributeError:
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sponsors = "you tell me, man"
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try:
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subcommittee = get_block_by_x_value(legislative_text, 151).text.rstrip()
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except AttributeError:
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try:
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subcommittee = get_block_by_x_value(legislative_text, 153).text.rstrip()
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except AttributeError:
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subcommittee = "you tell me, man"
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the_rest = ''.join([i.text for i in legislative_text[12:]])
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print([i.text for i in legislative_text[12:]])
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handled = self.handle_the_rest(the_rest)
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title = handled["title"]
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bill_text = handled["bill_text"]
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output.append({
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"code": leg_code,
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"school": school,
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"sponsors": sponsors,
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"subcommittee": subcommittee,
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"title": title,
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"bill_text": bill_text
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})
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self.output = output
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class HSMUN23(CCEParserBase):
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section_page_words = ["Committee", "Model", "United", "YMCA", "Tennessee", "Nations"]
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last_page_words = ["ABCs"]
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split_leg_pages_needle = "43rd General Assembly"
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class HSYIG24(CCEParserBase):
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section_page_words = [ "Committee", "YMCA", "Tennessee", "Youth", "in" ]
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last_page_words = [ "ABCs" ]
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split_leg_pages_needle = "71st General Assembly"
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def generate_section_markers(self) -> list[int]:
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"""
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This overrides the regular method because we need to check
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for three images on a section page
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"""
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section_pages = []
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for page in self.document:
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text = page.get_text().encode("utf8")
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is_section_page = words_in_superstring(
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words = self.section_page_words,
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superstring = text
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)
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is_last_page = words_in_superstring(
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words = self.last_page_words,
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superstring = text
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)
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if is_section_page and len(page.get_images()) == 3:
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section_pages.append(page.number)
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if is_last_page and len(section_pages) > 2:
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section_pages.append(page.number)
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return section_pages
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def parse_legislative_metablocks(self):
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"""
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This is YIG specific code
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"""
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output = []
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splitted = self.split_leg_pages()
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for legislative_text in splitted:
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# there are some blocks that contain just one value
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# and are aligned to some x value on the pdf
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# it's an easy way to extract stuff
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legislative_text = remove_block_by_x_value(legislative_text, 565) # remove page numbers
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leg_code = get_block_by_x_value(legislative_text, 88).text.rstrip()
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school = get_block_by_x_value(legislative_text, 163).text.rstrip()
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sponsors = get_block_by_x_value(legislative_text, 152).text.rstrip()
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subcommittee = get_block_by_x_value(legislative_text, 139).text.rstrip()
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the_rest = ''.join([i.text for i in legislative_text[6:]])
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handled = self.handle_the_rest(the_rest)
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title = handled["title"]
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bill_text = handled["bill_text"]
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output.append({
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"code": leg_code,
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"school": school,
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"sponsors": sponsors,
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"subcommittee": subcommittee,
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"title": title,
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"bill_text": bill_text
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})
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self.output = output
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def main():
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argv = sys.argv
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doc = fitz.open(argv[1])
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if argv[2] == "HSYIG":
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doc = HSYIG24(doc)
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elif argv[2] == "HSMUN":
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doc = HSMUN23(doc)
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else:
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print("nonvalid book thing")
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return
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for text in doc.output:
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print("{} ---------------------------- {}".format(
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text["title"], text["bill_text"]
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))
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if __name__ == "__main__":
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import sys
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main() |