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helpers: Allow hyphens in UnicodeSanitize
Improve handling of existing hyphens in input to UnicodeSanitize. This commit accomplishes three things: 1. Explicitly allow hyphens 2. Avoid appending a hyphen if a preceeding hyphen is found 3. Avoid prepending a hyphen if a trailing hyphen is found Fixes #7288
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parent
6ff39fd908
commit
6407b2cd01
2 changed files with 21 additions and 6 deletions
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@ -87,7 +87,8 @@ func ishex(c rune) bool {
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// a predefined set of special Unicode characters.
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// If RemovePathAccents configuration flag is enabled, Unicode accents
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// are also removed.
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// Spaces will be replaced with a single hyphen, and sequential hyphens will be reduced to one.
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// Hyphens in the original input are maintained.
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// Spaces will be replaced with a single hyphen, and sequential replacement hyphens will be reduced to one.
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func (p *PathSpec) UnicodeSanitize(s string) string {
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if p.RemovePathAccents {
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s = text.RemoveAccentsString(s)
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@ -95,20 +96,30 @@ func (p *PathSpec) UnicodeSanitize(s string) string {
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source := []rune(s)
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target := make([]rune, 0, len(source))
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var prependHyphen bool
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var (
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prependHyphen bool
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wasHyphen bool
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)
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for i, r := range source {
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isAllowed := r == '.' || r == '/' || r == '\\' || r == '_' || r == '#' || r == '+' || r == '~'
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isAllowed := r == '.' || r == '/' || r == '\\' || r == '_' || r == '#' || r == '+' || r == '~' || r == '-'
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isAllowed = isAllowed || unicode.IsLetter(r) || unicode.IsDigit(r) || unicode.IsMark(r)
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isAllowed = isAllowed || (r == '%' && i+2 < len(source) && ishex(source[i+1]) && ishex(source[i+2]))
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if isAllowed {
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// track explicit hyphen in input; no need to add a new hyphen if
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// we just saw one.
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wasHyphen = r == '-'
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if prependHyphen {
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target = append(target, '-')
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// if currently have a hyphen, don't prepend an extra one
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if !wasHyphen {
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target = append(target, '-')
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}
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prependHyphen = false
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}
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target = append(target, r)
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} else if len(target) > 0 && (r == '-' || unicode.IsSpace(r)) {
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} else if len(target) > 0 && !wasHyphen && unicode.IsSpace(r) {
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prependHyphen = true
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}
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}
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@ -40,6 +40,10 @@ func TestMakePath(t *testing.T) {
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expected string
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removeAccents bool
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}{
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{"dot.slash/backslash\\underscore_pound#plus+hyphen-", "dot.slash/backslash\\underscore_pound#plus+hyphen-", true},
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{"abcXYZ0123456789", "abcXYZ0123456789", true},
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{"%20 %2", "%20-2", true},
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{"foo- bar", "foo-bar", true},
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{" Foo bar ", "Foo-bar", true},
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{"Foo.Bar/foo_Bar-Foo", "Foo.Bar/foo_Bar-Foo", true},
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{"fOO,bar:foobAR", "fOObarfoobAR", true},
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@ -52,7 +56,7 @@ func TestMakePath(t *testing.T) {
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{"a%C3%B1ame", "a%C3%B1ame", false}, // Issue #1292
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{"this+is+a+test", "this+is+a+test", false}, // Issue #1290
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{"~foo", "~foo", false}, // Issue #2177
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{"foo--bar", "foo--bar", true}, // Issue #7288
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}
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for _, test := range tests {
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