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# Copyright (C) 2018 Google Inc.
#
# 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.
"""Formatting utilities for use in creating help text."""
from fire import formatting_windows # pylint: disable=unused-import
import termcolor
ELLIPSIS = '...'
def Indent(text, spaces=2):
lines = text.split('\n')
return '\n'.join(
' ' * spaces + line if line else line
for line in lines)
def Bold(text):
return termcolor.colored(text, attrs=['bold'])
def Underline(text):
return termcolor.colored(text, attrs=['underline'])
def BoldUnderline(text):
return Bold(Underline(text))
def WrappedJoin(items, separator=' | ', width=80):
"""Joins the items by the separator, wrapping lines at the given width."""
lines = []
current_line = ''
for index, item in enumerate(items):
is_final_item = index == len(items) - 1
if is_final_item:
if len(current_line) + len(item) <= width:
current_line += item
else:
lines.append(current_line.rstrip())
current_line = item
else:
if len(current_line) + len(item) + len(separator) <= width:
current_line += item + separator
else:
lines.append(current_line.rstrip())
current_line = item + separator
lines.append(current_line)
return lines
def Error(text):
return termcolor.colored(text, color='red', attrs=['bold'])
def EllipsisTruncate(text, available_space, line_length):
"""Truncate text from the end with ellipsis."""
if available_space < len(ELLIPSIS):
available_space = line_length
# No need to truncate
if len(text) <= available_space:
return text
return text[:available_space - len(ELLIPSIS)] + ELLIPSIS
def EllipsisMiddleTruncate(text, available_space, line_length):
"""Truncates text from the middle with ellipsis."""
if available_space < len(ELLIPSIS):
available_space = line_length
if len(text) < available_space:
return text
available_string_len = available_space - len(ELLIPSIS)
first_half_len = int(available_string_len / 2) # start from middle
second_half_len = available_string_len - first_half_len
return text[:first_half_len] + ELLIPSIS + text[-second_half_len:]
def DoubleQuote(text):
return '"%s"' % text
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