mirror of
https://github.com/PiBrewing/craftbeerpi4.git
synced 2024-11-15 03:28:13 +01:00
201 lines
6.5 KiB
Python
201 lines
6.5 KiB
Python
"""
|
|
Module for formatting output data in console (to string).
|
|
"""
|
|
from shutil import get_terminal_size
|
|
from typing import Iterable, List, Optional
|
|
|
|
import numpy as np
|
|
|
|
from pandas.io.formats.format import DataFrameFormatter
|
|
from pandas.io.formats.printing import pprint_thing
|
|
|
|
|
|
class StringFormatter:
|
|
"""Formatter for string representation of a dataframe."""
|
|
|
|
def __init__(self, fmt: DataFrameFormatter, line_width: Optional[int] = None):
|
|
self.fmt = fmt
|
|
self.adj = fmt.adj
|
|
self.frame = fmt.frame
|
|
self.line_width = line_width
|
|
|
|
def to_string(self) -> str:
|
|
text = self._get_string_representation()
|
|
if self.fmt.should_show_dimensions:
|
|
text = "".join([text, self.fmt.dimensions_info])
|
|
return text
|
|
|
|
def _get_strcols(self) -> List[List[str]]:
|
|
strcols = self.fmt.get_strcols()
|
|
if self.fmt.is_truncated:
|
|
strcols = self._insert_dot_separators(strcols)
|
|
return strcols
|
|
|
|
def _get_string_representation(self) -> str:
|
|
if self.fmt.frame.empty:
|
|
return self._empty_info_line
|
|
|
|
strcols = self._get_strcols()
|
|
|
|
if self.line_width is None:
|
|
# no need to wrap around just print the whole frame
|
|
return self.adj.adjoin(1, *strcols)
|
|
|
|
if self._need_to_wrap_around:
|
|
return self._join_multiline(strcols)
|
|
|
|
return self._fit_strcols_to_terminal_width(strcols)
|
|
|
|
@property
|
|
def _empty_info_line(self) -> str:
|
|
return (
|
|
f"Empty {type(self.frame).__name__}\n"
|
|
f"Columns: {pprint_thing(self.frame.columns)}\n"
|
|
f"Index: {pprint_thing(self.frame.index)}"
|
|
)
|
|
|
|
@property
|
|
def _need_to_wrap_around(self) -> bool:
|
|
return bool(self.fmt.max_cols is None or self.fmt.max_cols > 0)
|
|
|
|
def _insert_dot_separators(self, strcols: List[List[str]]) -> List[List[str]]:
|
|
str_index = self.fmt._get_formatted_index(self.fmt.tr_frame)
|
|
index_length = len(str_index)
|
|
|
|
if self.fmt.is_truncated_horizontally:
|
|
strcols = self._insert_dot_separator_horizontal(strcols, index_length)
|
|
|
|
if self.fmt.is_truncated_vertically:
|
|
strcols = self._insert_dot_separator_vertical(strcols, index_length)
|
|
|
|
return strcols
|
|
|
|
def _insert_dot_separator_horizontal(
|
|
self, strcols: List[List[str]], index_length: int
|
|
) -> List[List[str]]:
|
|
strcols.insert(self.fmt.tr_col_num + 1, [" ..."] * index_length)
|
|
return strcols
|
|
|
|
def _insert_dot_separator_vertical(
|
|
self, strcols: List[List[str]], index_length: int
|
|
) -> List[List[str]]:
|
|
n_header_rows = index_length - len(self.fmt.tr_frame)
|
|
row_num = self.fmt.tr_row_num
|
|
for ix, col in enumerate(strcols):
|
|
cwidth = self.adj.len(col[row_num])
|
|
|
|
if self.fmt.is_truncated_horizontally:
|
|
is_dot_col = ix == self.fmt.tr_col_num + 1
|
|
else:
|
|
is_dot_col = False
|
|
|
|
if cwidth > 3 or is_dot_col:
|
|
dots = "..."
|
|
else:
|
|
dots = ".."
|
|
|
|
if ix == 0:
|
|
dot_mode = "left"
|
|
elif is_dot_col:
|
|
cwidth = 4
|
|
dot_mode = "right"
|
|
else:
|
|
dot_mode = "right"
|
|
|
|
dot_str = self.adj.justify([dots], cwidth, mode=dot_mode)[0]
|
|
col.insert(row_num + n_header_rows, dot_str)
|
|
return strcols
|
|
|
|
def _join_multiline(self, strcols_input: Iterable[List[str]]) -> str:
|
|
lwidth = self.line_width
|
|
adjoin_width = 1
|
|
strcols = list(strcols_input)
|
|
|
|
if self.fmt.index:
|
|
idx = strcols.pop(0)
|
|
lwidth -= np.array([self.adj.len(x) for x in idx]).max() + adjoin_width
|
|
|
|
col_widths = [
|
|
np.array([self.adj.len(x) for x in col]).max() if len(col) > 0 else 0
|
|
for col in strcols
|
|
]
|
|
|
|
assert lwidth is not None
|
|
col_bins = _binify(col_widths, lwidth)
|
|
nbins = len(col_bins)
|
|
|
|
if self.fmt.is_truncated_vertically:
|
|
assert self.fmt.max_rows_fitted is not None
|
|
nrows = self.fmt.max_rows_fitted + 1
|
|
else:
|
|
nrows = len(self.frame)
|
|
|
|
str_lst = []
|
|
start = 0
|
|
for i, end in enumerate(col_bins):
|
|
row = strcols[start:end]
|
|
if self.fmt.index:
|
|
row.insert(0, idx)
|
|
if nbins > 1:
|
|
if end <= len(strcols) and i < nbins - 1:
|
|
row.append([" \\"] + [" "] * (nrows - 1))
|
|
else:
|
|
row.append([" "] * nrows)
|
|
str_lst.append(self.adj.adjoin(adjoin_width, *row))
|
|
start = end
|
|
return "\n\n".join(str_lst)
|
|
|
|
def _fit_strcols_to_terminal_width(self, strcols: List[List[str]]) -> str:
|
|
from pandas import Series
|
|
|
|
lines = self.adj.adjoin(1, *strcols).split("\n")
|
|
max_len = Series(lines).str.len().max()
|
|
# plus truncate dot col
|
|
width, _ = get_terminal_size()
|
|
dif = max_len - width
|
|
# '+ 1' to avoid too wide repr (GH PR #17023)
|
|
adj_dif = dif + 1
|
|
col_lens = Series([Series(ele).apply(len).max() for ele in strcols])
|
|
n_cols = len(col_lens)
|
|
counter = 0
|
|
while adj_dif > 0 and n_cols > 1:
|
|
counter += 1
|
|
mid = int(round(n_cols / 2.0))
|
|
mid_ix = col_lens.index[mid]
|
|
col_len = col_lens[mid_ix]
|
|
# adjoin adds one
|
|
adj_dif -= col_len + 1
|
|
col_lens = col_lens.drop(mid_ix)
|
|
n_cols = len(col_lens)
|
|
|
|
# subtract index column
|
|
max_cols_fitted = n_cols - self.fmt.index
|
|
# GH-21180. Ensure that we print at least two.
|
|
max_cols_fitted = max(max_cols_fitted, 2)
|
|
self.fmt.max_cols_fitted = max_cols_fitted
|
|
|
|
# Call again _truncate to cut frame appropriately
|
|
# and then generate string representation
|
|
self.fmt.truncate()
|
|
strcols = self._get_strcols()
|
|
return self.adj.adjoin(1, *strcols)
|
|
|
|
|
|
def _binify(cols: List[int], line_width: int) -> List[int]:
|
|
adjoin_width = 1
|
|
bins = []
|
|
curr_width = 0
|
|
i_last_column = len(cols) - 1
|
|
for i, w in enumerate(cols):
|
|
w_adjoined = w + adjoin_width
|
|
curr_width += w_adjoined
|
|
if i_last_column == i:
|
|
wrap = curr_width + 1 > line_width and i > 0
|
|
else:
|
|
wrap = curr_width + 2 > line_width and i > 0
|
|
if wrap:
|
|
bins.append(i)
|
|
curr_width = w_adjoined
|
|
|
|
bins.append(len(cols))
|
|
return bins
|