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66 lines
1.6 KiB
Go
66 lines
1.6 KiB
Go
// Copyright 2016 Documize Inc. <legal@documize.com>. All rights reserved.
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//
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// This software (Documize Community Edition) is licensed under
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// GNU AGPL v3 http://www.gnu.org/licenses/agpl-3.0.en.html
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//
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// You can operate outside the AGPL restrictions by purchasing
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// Documize Enterprise Edition and obtaining a commercial license
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// by contacting <sales@documize.com>.
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//
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// https://documize.com
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package stringutil
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import (
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"path/filepath"
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"strings"
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"unicode"
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)
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// BeautifyFilename takes a filename and attempts to turn it into a readable form,
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// as TitleCase natural language, suitable for the top level of a Document.
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func BeautifyFilename(fn string) string {
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_, file := filepath.Split(fn)
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splits := strings.Split(file, ".")
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r := []rune(strings.Join(splits[:len(splits)-1], "."))
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// make any non-letter/digit characters space
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for i := range r {
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if !(unicode.IsLetter(r[i]) || unicode.IsDigit(r[i]) || r[i] == '.') {
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r[i] = ' '
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}
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}
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// insert spaces in front of any Upper/Lowwer 2-letter combinations
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addSpaces:
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for i := range r {
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if i > 1 { // do not insert a space at the start of the file name
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if unicode.IsLower(r[i]) && unicode.IsUpper(r[i-1]) && r[i-2] != ' ' {
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n := make([]rune, len(r)+1)
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for j := 0; j < i-1; j++ {
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n[j] = r[j]
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}
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n[i-1] = ' '
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for j := i - 1; j < len(r); j++ {
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n[j+1] = r[j]
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}
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r = n
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goto addSpaces
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}
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}
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}
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// make the first letter of each word upper case
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for i := range r {
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switch i {
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case 0:
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r[i] = unicode.ToUpper(r[i])
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case 1: // the zero element should never be space
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default:
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if r[i-1] == ' ' {
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r[i] = unicode.ToUpper(r[i])
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}
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}
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}
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return string(r)
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}
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