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improve tags godoc.

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This commit is contained in:
fiatjaf 2022-11-11 10:56:17 -03:00
parent 8a12bb2c18
commit 50e47392a9
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GPG Key ID: BAD43C4BE5C1A3A1
1 changed files with 6 additions and 3 deletions
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9
event_aux.go
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@ -38,7 +38,7 @@ func (tag Tag) StartsWith(prefix []string) bool {
type Tags []Tag
// GetFirst gets the first tag in tags that matches tagPrefix, see [Tag.StartsWith]
// GetFirst gets the first tag in tags that matches the prefix, see [Tag.StartsWith]
func (tags Tags) GetFirst(tagPrefix []string) *Tag {
for _, v := range tags {
if v.StartsWith(tagPrefix) {
@ -48,7 +48,7 @@ func (tags Tags) GetFirst(tagPrefix []string) *Tag {
return nil
}
// GetLast gets the last tag in tags that matches tagPrefix, see [Tag.StartsWith]
// GetLast gets the last tag in tags that matches the prefix, see [Tag.StartsWith]
func (tags Tags) GetLast(tagPrefix []string) *Tag {
for i := len(tags) - 1; i >= 0; i-- {
v := tags[i]
@ -59,6 +59,7 @@ func (tags Tags) GetLast(tagPrefix []string) *Tag {
return nil
}
// GetLast gets all the tags that match the prefix, see [Tag.StartsWith]
func (tags Tags) GetAll(tagPrefix []string) Tags {
result := make(Tags, 0, len(tags))
for _, v := range tags {
@ -69,6 +70,7 @@ func (tags Tags) GetAll(tagPrefix []string) Tags {
return result
}
// FilterOut removes all tags that match the prefix, see [Tag.StartsWith]
func (tags Tags) FilterOut(tagPrefix []string) Tags {
filtered := make(Tags, 0, len(tags))
for _, v := range tags {
@ -79,9 +81,10 @@ func (tags Tags) FilterOut(tagPrefix []string) Tags {
return filtered
}
// AppendUnique appends a tag if it doesn't exist yet, otherwise does nothing
func (tags Tags) AppendUnique(tag Tag) Tags {
if tags.GetFirst(tag) == nil {
return append(tags.FilterOut(tag), tag)
return append(tags, tag)
} else {
return tags
}