66 lines
2.3 KiB
Go
66 lines
2.3 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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import (
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"strings"
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)
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// Code takes a code block as a backtick enclosed `heredoc` and removes any
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// common indentation from each line. This helps inline code as strings to be
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// formatted nicely without unnecessary indentation. It also drops the very
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// first line of code if it has zero length.
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func Code(code string) string {
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output := []string{}
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lines := strings.Split(code, "\n")
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var found bool
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var strip string // prefix to remove
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for i, x := range lines {
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if !found && len(x) > 0 {
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for j := 0; j < len(x); j++ {
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if x[j] != '\t' {
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break
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}
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strip += "\t"
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}
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// otherwise, there's no indentation
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found = true
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}
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if i == 0 && len(x) == 0 { // drop first line if it's empty
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continue
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}
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s := strings.TrimPrefix(x, strip)
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output = append(output, s)
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}
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return strings.Join(output, "\n")
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}
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