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module Vagrant
module Util
module ANSIEscapeCodeRemover
# Removes ANSI escape code sequences from the text and returns
# it.
#
# This removes all the ANSI escape codes listed here along with
# the escape codes for VT100 terminals:
#
# http://ascii-table.com/ansi-escape-sequences.php
def remove_ansi_escape_codes(text)
# An array of regular expressions which match various kinds
# of escape sequences. I can't think of a better single regular
# expression or any faster way to do this.
matchers = [/\e\[\d*[ABCD]/, # Matches things like \e[4D
/\e\[(\d*;)?\d*[HF]/, # Matches \e[1;2H or \e[H
/\e\[(s|u|2J|K)/, # Matches \e[s, \e[2J, etc.
/\e\[(\d*;){0,2}\d*m/, # Matches color escapes: \e[32m
/\e\[=\d*[hl]/, # Matches \e[=24h
/\e\[\?[1-9][hl]/, # Matches \e[?2h
/\e\[20[hl]/, # Matches \e[20l]
/\e[DME78H]/, # Matches \eD, \eH, etc.
/\e\[[0-2]?[JK]/, # Matches \e[0J, \e[K, etc.
]
# Take each matcher and replace it with emptiness.
matchers.each do |matcher|
text.gsub!(matcher, "")
end
text
end
end
end
end
Version data entries
6 entries across 6 versions & 2 rubygems