diff options
Diffstat (limited to 'incdec')
| -rw-r--r-- | incdec | 104 |
1 files changed, 0 insertions, 104 deletions
@@ -1,104 +0,0 @@ -# Copyright (c) 2021 Teddy Wing -# -# This file is part of Incdec. -# -# Incdec is free software: you can redistribute it and/or modify it -# under the terms of the GNU General Public License as published by -# the Free Software Foundation, either version 3 of the License, or -# (at your option) any later version. -# -# Incdec is distributed in the hope that it will be useful, but -# WITHOUT ANY WARRANTY; without even the implied warranty of -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -# General Public License for more details. -# -# You should have received a copy of the GNU General Public License -# along with Incdec. If not, see <https://www.gnu.org/licenses/>. - - -# Increment or decrement a number on the current line. -function __readline_incdec { - local increment_by="$1" - local backward="$2" - - line=$(perl -s -e ' -sub incdec { - my ($line, $increment_by, $point_position, $is_backward) = @_; - - $point_position ||= 0; - $is_backward ||= 0; - - my $start_position = 0; - my $previous_match_start = 0; - while ($line =~ /(-?\d+)/g) { - if ($is_backward) { - # Set start position to the current match start. This gives us the - # correct start position when incrementing the last number in a - # line. - $start_position = $-[0]; - - # If point is not at the end, set start position to the number - # closest to the point position. - if ($point_position < $-[0]) { - $start_position = $previous_match_start; - - last; - } - - $previous_match_start = $-[0]; - } - else { - if ($point_position < $+[0]) { - $start_position = $-[0]; - - last; - } - } - } - - pos($line) = $start_position; - $line =~ s/\G([^-\d]*)(-?\d+)/$1 . ($2 + $increment_by)/e; - - return $line; -} - -my $output = incdec($line, $increment_by, $point_position, $backward); -print $output; -' \ - -- \ - -line="$READLINE_LINE" \ - -increment_by="$increment_by" \ - -point_position="$READLINE_POINT" \ - -backward="$backward" - ) - - READLINE_LINE="$line" -} - -# Increment the nearest number to the left of point by 1. -function __readline_incdec_increment { - local old_line_length="${#READLINE_LINE}" - - __readline_incdec 1 1 - - local new_line_length="${#READLINE_LINE}" - - # If a negative sign was removed, keep point where it was. - if [ "$old_line_length" -gt "$new_line_length" ]; then - READLINE_POINT="$(($READLINE_POINT - 1))" - fi -} - -# Decrement the nearest number to the left of point by 1. -function __readline_incdec_decrement { - local old_line_length="${#READLINE_LINE}" - - __readline_incdec -1 1 - - local new_line_length="${#READLINE_LINE}" - - # If a negative sign was added, keep point where it was. - if [ "$old_line_length" -lt "$new_line_length" ]; then - READLINE_POINT="$(($READLINE_POINT + 1))" - fi -} |