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#!/usr/bin/env python3
"""Utilities for dealing with "text"."""
from collections import defaultdict
import math
import sys
from typing import List, NamedTuple, Optional
from ansi import fg, reset
class RowsColumns(NamedTuple):
rows: int
columns: int
def get_console_rows_columns() -> RowsColumns:
from exec_utils import cmd
rows, columns = cmd("stty size").split()
return RowsColumns(int(rows), int(columns))
def progress_graph(
current: int,
total: int,
*,
width=70,
fgcolor=fg("school bus yellow"),
left_end="[",
right_end="]",
redraw=True,
) -> None:
percent = current / total
ret = "\r" if redraw else "\n"
bar = bar_graph(
percent,
include_text = True,
width = width,
fgcolor = fgcolor,
left_end = left_end,
right_end = right_end)
print(
bar,
end=ret,
flush=True,
file=sys.stderr)
def bar_graph(
percentage: float,
*,
include_text=True,
width=70,
fgcolor=fg("school bus yellow"),
left_end="[",
right_end="]",
) -> None:
if percentage < 0.0 or percentage > 1.0:
raise ValueError(percentage)
if include_text:
text = f"{percentage*100.0:2.1f}%"
else:
text = ""
whole_width = math.floor(percentage * width)
if whole_width == width:
whole_width -= 1
part_char = "▉"
else:
remainder_width = (percentage * width) % 1
part_width = math.floor(remainder_width * 8)
part_char = [" ", "▏", "▎", "▍", "▌", "▋", "▊", "▉"][part_width]
return (
left_end +
fgcolor +
"█" * whole_width + part_char +
" " * (width - whole_width - 1) +
reset() +
right_end + " " +
text)
def distribute_strings(
strings: List[str],
*,
width: int = 80,
alignment: str = "c",
padding: str = " ",
) -> str:
subwidth = math.floor(width / len(strings))
retval = ""
for string in strings:
string = justify_string(
string, width=subwidth, alignment=alignment, padding=padding
)
retval += string
return retval
def justify_string_by_chunk(
string: str, width: int = 80, padding: str = " "
) -> str:
padding = padding[0]
first, *rest, last = string.split()
w = width - (len(first) + 1 + len(last) + 1)
retval = (
first + padding + distribute_strings(rest, width=w, padding=padding)
)
while len(retval) + len(last) < width:
retval += padding
retval += last
return retval
def justify_string(
string: str, *, width: int = 80, alignment: str = "c", padding: str = " "
) -> str:
alignment = alignment[0]
padding = padding[0]
while len(string) < width:
if alignment == "l":
string += padding
elif alignment == "r":
string = padding + string
elif alignment == "j":
return justify_string_by_chunk(
string,
width=width,
padding=padding
)
elif alignment == "c":
if len(string) % 2 == 0:
string += padding
else:
string = padding + string
else:
raise ValueError
return string
def justify_text(text: str, *, width: int = 80, alignment: str = "c") -> str:
print("-" * width)
retval = ""
line = ""
for word in text.split():
if len(line) + len(word) > width:
line = line[1:]
line = justify_string(line, width=width, alignment=alignment)
retval = retval + "\n" + line
line = ""
line = line + " " + word
if len(line) > 0:
retval += "\n" + line[1:]
return retval[1:]
def generate_padded_columns(text: List[str]) -> str:
max_width = defaultdict(int)
for line in text:
for pos, word in enumerate(line.split()):
max_width[pos] = max(max_width[pos], len(word))
for line in text:
out = ""
for pos, word in enumerate(line.split()):
width = max_width[pos]
word = justify_string(word, width=width, alignment='l')
out += f'{word} '
yield out
def wrap_string(text: str, n: int) -> str:
chunks = text.split()
out = ''
width = 0
for chunk in chunks:
if width + len(chunk) > n:
out += '\n'
width = 0
out += chunk + ' '
width += len(chunk) + 1
return out
class Indenter:
"""
with Indenter(pad_count = 8) as i:
i.print('test')
with i:
i.print('-ing')
with i:
i.print('1, 2, 3')
"""
def __init__(self,
*,
pad_prefix: Optional[str] = None,
pad_char: str = ' ',
pad_count: int = 4):
self.level = -1
if pad_prefix is not None:
self.pad_prefix = pad_prefix
else:
self.pad_prefix = ''
self.padding = pad_char * pad_count
def __enter__(self):
self.level += 1
return self
def __exit__(self, exc_type, exc_value, exc_tb):
self.level -= 1
if self.level < -1:
self.level = -1
def print(self, *arg, **kwargs):
import string_utils
text = string_utils.sprintf(*arg, **kwargs)
print(self.pad_prefix + self.padding * self.level + text, end='')
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