61 lines
2.7 KiB
Go
61 lines
2.7 KiB
Go
// Mgmt
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// Copyright (C) 2013-2024+ James Shubin and the project contributors
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// Written by James Shubin <james@shubin.ca> and the project contributors
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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//
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// Additional permission under GNU GPL version 3 section 7
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//
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// If you modify this program, or any covered work, by linking or combining it
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// with embedded mcl code and modules (and that the embedded mcl code and
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// modules which link with this program, contain a copy of their source code in
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// the authoritative form) containing parts covered by the terms of any other
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// license, the licensors of this program grant you additional permission to
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// convey the resulting work. Furthermore, the licensors of this program grant
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// the original author, James Shubin, additional permission to update this
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// additional permission if he deems it necessary to achieve the goals of this
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// additional permission.
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package util
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// LeftPad adds multiples of the pad string to the left of the input string
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// until it reaches a minimum length. If the padding string is not an integer
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// multiple of the missing length to pad, then this will overshoot. It is better
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// to overshoot than to undershoot because if you need a string of a precise
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// length, then it's easier to truncate the result, rather than having to pad
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// even more. Most scenarios pad with a single char meaning this is not even an
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// issue.
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func LeftPad(s string, pad string, length int) string {
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out := s
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for len(out) < length {
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out = pad + out
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}
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return out
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}
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// RightPad adds multiples of the pad string to the right of the input string
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// until it reaches a minimum length. If the padding string is not an integer
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// multiple of the missing length to pad, then this will overshoot. It is better
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// to overshoot than to undershoot because if you need a string of a precise
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// length, then it's easier to truncate the result, rather than having to pad
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// even more. Most scenarios pad with a single char meaning this is not even an
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// issue.
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func RightPad(s string, pad string, length int) string {
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out := s
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for len(out) < length {
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out += pad
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}
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return out
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}
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