pytex/PyTeX/format/simple_tex_formatter.py

from .formatting_config import FormattingConfig
from .tex_formatter import TexFormatter
from pathlib import Path
from typing import Optional, List, Tuple, Dict
from .enums import TeXFlavour


class SimpleTeXFormatter(TexFormatter):
    def open_output_stream(self, build_dir: Path):
        out_file = build_dir / self.input_file.with_suffix('').name
        if out_file.exists():
            raise NotImplementedError
        else:
            self._output_file = out_file.open('w')

    def close_output_stream(self):
        self._output_file.close()

    @property
    def future_config(self) -> List[Tuple[str, FormattingConfig]]:
        return []  # TODO

    @property
    def dependencies(self) -> List[str]:
        return []  # sty / cls file does not depend on anything

    @property
    def output_files(self) -> List[str]:
        return [self.input_file.with_suffix('').name]

    def _post_process_line(self, line: str) -> str:
        if self.config.tex_flavour == TeXFlavour.LaTeX2e:
            raw = line.rstrip(' %\n')
            return '' if raw == '' else raw + '%'
        else:
            return line.rstrip()