mirror of
https://github.com/yavook/kiwi-scp.git
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97 lines
2.5 KiB
Python
97 lines
2.5 KiB
Python
import re
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from enum import Enum, auto
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from typing import List
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import attr
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import wcwidth
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class WAlignment(Enum):
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LEFT = auto()
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RIGHT = auto()
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CENTER = auto()
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@attr.s
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class WString:
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s: str = attr.ib()
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# from https://stackoverflow.com/a/38662876
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ANSI_ESCAPES = re.compile(r"(?:\x1B[@-_]|[\x80-\x9F])[0-?]*[ -/]*[@-~]")
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def __str__(self) -> str:
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return self.s
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def __len__(self) -> int:
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return wcwidth.wcswidth(WString.ANSI_ESCAPES.sub("", self.s))
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def pad(self, alignment: WAlignment = WAlignment.CENTER, wlen: int = 0, char: str = " ") -> "WString":
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char = char[0]
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if alignment is WAlignment.LEFT:
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return WString(f"{self}{char * wlen}")
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elif alignment is WAlignment.RIGHT:
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return WString(f"{char * wlen}{self}")
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else:
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pad_l, pad_r = wlen // 2, wlen - (wlen // 2)
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return WString(f"{char * pad_l}{self}{char * pad_r}")
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@attr.s
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class WParagraph:
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lines: List[WString] = attr.ib()
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def __str__(self) -> str:
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return "\n".join(
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str(line)
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for line in self.lines
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)
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@classmethod
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def from_strings(cls, *source: str) -> "WParagraph":
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return cls([
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WString(line)
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for line in source
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])
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def align(self, alignment: WAlignment = WAlignment.CENTER, padding: int = 0, char: str = " ") -> "WParagraph":
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total_length = max(
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len(line)
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for line in self.lines
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) + padding
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pad_lengths = (
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total_length - len(line)
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for line in self.lines
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)
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return WParagraph([
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line.pad(alignment, wlen, char)
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for line, wlen in zip(self.lines, pad_lengths)
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])
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def surround(self, char: str, padding: int = 1) -> "WParagraph":
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char = char[0]
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padding = " " * padding
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l_border, r_border = char + padding, padding + char
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lines = [
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WString(f"{l_border}{line}{r_border}")
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for line in self.lines
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]
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extra_line = char * len(lines[0])
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return WParagraph([
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extra_line,
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*lines,
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extra_line,
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])
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def emphasize(self, count: int = 3, padding: int = 1) -> "WParagraph":
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padding = " " * padding
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l_border, r_border = (">" * count) + padding, padding + ("<" * count)
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return WParagraph([
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WString(f"{l_border}{line}{r_border}")
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for line in self.lines
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])
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