# Copyright (c) 2021, NVIDIA CORPORATION. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from typing import List, Optional
[docs]def repeat_to_length(string_to_expand, length):
"""Repeats string_to_expand to fill up a string of the provided length.
Args:
string_to_expand: string to repeat
length: length of string to return
Returns: generated string of provided length
"""
return (string_to_expand * (int(length / len(string_to_expand)) + 1))[:length]
[docs]class Table(object):
def __init__(self, headers: Optional[List[str]] = None, meta_rows=None):
"""A structure with header and rows of records.
Note:
The header will be converted to capital letters.
Args:
headers: headers of the table
"""
self.rows = []
self.meta_rows = meta_rows
if headers and len(headers) > 0:
new_headers = []
for h in headers:
new_headers.append(h.upper())
self.rows.append(new_headers)
[docs] def set_rows(self, rows, meta_rows=None):
"""Sets the rows of records."""
self.rows = rows
self.meta_rows = meta_rows
[docs] def add_row(self, row: List[str], meta: dict = None):
"""Adds a record."""
self.rows.append(row)
if meta:
self.meta_rows.append(meta)
[docs] def write(self, writer):
# compute the number of cols
num_cols = 0
for row in self.rows:
if num_cols < len(row):
num_cols = len(row)
# compute max col size
col_len = [0 for _ in range(num_cols)]
for row in self.rows:
for i in range(len(row)):
if col_len[i] < len(row[i]):
col_len[i] = len(row[i])
col_fmt = ["" for _ in range(num_cols)]
for i in range(num_cols):
if i == 0:
extra = ""
else:
extra = " "
col_fmt[i] = extra + "| {:" + "{}".format(col_len[i]) + "}"
if i == num_cols - 1:
col_fmt[i] = col_fmt[i] + " |"
total_col_size = 0
for i in range(num_cols):
total_col_size += col_len[i] + 2
table_width = total_col_size + num_cols + 1
border_line = repeat_to_length("-", table_width)
writer.write(border_line + "\n")
for r in range(len(self.rows)):
row = self.rows[r]
line = ""
for i in range(num_cols):
if i < len(row):
data = row[i]
else:
data = " "
line += col_fmt[i].format(data)
writer.write(line + "\n")
if r == 0:
writer.write(border_line + "\n")
writer.write(border_line + "\n")