# Sort posts by title, case insensitive

**URL:** <https://discourse.gohugo.io/t/sort-posts-by-title-case-insensitive/6076>\
**Category:** support\
**Created:** [April 8, 2017, 2:42pm UTC](https://discourse.gohugo.io/t/sort-posts-by-title-case-insensitive/6076 "2017-04-08T14:42:58Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![runhide](https://avatars.discourse-cdn.com/v4/letter/r/eada6e/32.png) [@runhide](https://discourse.gohugo.io/u/runhide)\
**Post date:** [April 8, 2017, 2:42pm UTC](https://discourse.gohugo.io/t/sort-posts-by-title-case-insensitive/6076/1 "2017-04-08T14:42:58Z")

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There was a post last year about sorting posts by title that are case insensitive, but no solutions were given. Here’s the [link](https://discuss.gohugo.io/t/sorting-posts-by-title-case-insensitive/2413) for reference.

Do any of you have any advice on how to do this? If I sort my posts by title, all posts that are capitalized are sorted first and thereafter lowercase posts are sorted. Thanks

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**Author:** ![Hash\_Borgir](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.gohugo.io/hash_borgir/32/6655_2.png) [@Hash\_Borgir](https://discourse.gohugo.io/u/Hash_Borgir)\
**Post date:** [April 10, 2017, 4:04am UTC](https://discourse.gohugo.io/t/sort-posts-by-title-case-insensitive/6076/2 "2017-04-10T04:04:07Z")

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This would require a custom sorting function to be added to Hugo. Even in golang’s sort package [https://golang.org/src/sort/sort.go](https://golang.org/src/sort/sort.go) there doesn’t seem to be a case-insensitive sort. Take a look here if you’re interested. You can either write a sort.Interface to implement custom case insensitive sorting, or check out sortutil lib for golang. Patrick has implemented a case insensitive sort function in sortutil lib. [https://github.com/patrickmn/sortutil](https://github.com/patrickmn/sortutil)

You can install it like so: `go get github.com/pmylund/sortutil`

Then you can import it into Hugo’s [https://github.com/spf13/hugo/blob/master/hugolib/pageSort.go](https://github.com/spf13/hugo/blob/master/hugolib/pageSort.go) and implement the case insensitive sort function here, and use the func CiAsc(slice interface{}) from sortutil.

[https://github.com/patrickmn/sortutil/blob/master/sortutil.go#L55](https://github.com/patrickmn/sortutil/blob/master/sortutil.go#L55) Take a peek here to see how Patrick is implementing this.

You can then build Hugo from source with your new sortutil library and your new case insensitive sort function, and test it out in your site. Perhaps even submit a PR if it works flawlessly.

This is not entirely too trivial.

Hugo gurus please verify if my advice is not crazy. Thanks! 🙂

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**Author:** ![peterpan](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.gohugo.io/peterpan/32/1789_2.png) [@peterpan](https://discourse.gohugo.io/u/peterpan)\
**Post date:** [June 15, 2017, 6:56pm UTC](https://discourse.gohugo.io/t/sort-posts-by-title-case-insensitive/6076/3 "2017-06-15T18:56:02Z")

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Another work around using Hugo functions is to create a slice of lower cased param values. Loop over them and for each instance that lower case matches an actual page title which you also lower case output what you want. Some code we use

Here `integration_title` have various caps and is sorted but not case insensitive  
`{{ $lower := sort $integrations "Params.integration_title" }}`

Set slice  
`{{ $.Scratch.Set "lower_titles" (slice) }}`

Range over all params lower case them and add to slice

```auto
{{ range $lower }}`
  
  {{ $.Scratch.Add "lower_titles" (lower .Params.integration_title) }}

{{ end }}

```

Now sort the slice which is all lower case, range over initial slice and when the lower case param matches show what you need from the original slice.

```auto
{{ range sort ($.Scratch.Get "lower_titles") }}

  {{ $lower_int := . }}

    {{ range $int := $integrations }}

      {{ if eq $lower_int (lower $int.Params.integration_title) }}
        <li><a href="{{.Permalink}}">{{ .Params.integration_title}}</a></li>
      {{ end }}

    {{ end }}

{{ end }}

```

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<div class="post-metadata">

**Author:** ![mxmehl](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.gohugo.io/mxmehl/32/4039_2.png) [@mxmehl](https://discourse.gohugo.io/u/mxmehl)\
**Post date:** [September 14, 2017, 9:41am UTC](https://discourse.gohugo.io/t/sort-posts-by-title-case-insensitive/6076/4 "2017-09-14T09:41:26Z")

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Thank you peterpan!

For a real world implementation of this workaround, see [this code of publiccode.eu](https://git.fsfe.org/pmpc/website/src/e59836c6437a296ac78d03484a696acd5ef27b39/site/layouts/partials/organisations.html#L11).

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<div class="post-metadata">

**Author:** ![bax](https://yyz2.discourse-cdn.com/flex036/user_avatar/discourse.gohugo.io/bax/32/5977_2.png) [@bax](https://discourse.gohugo.io/u/bax)\
**Post date:** [March 23, 2018, 9:24am UTC](https://discourse.gohugo.io/t/sort-posts-by-title-case-insensitive/6076/5 "2018-03-23T09:24:31Z")

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I also needed case insensitive sorting.

Thanks to you, this is what I came up with:

```
  {{- range (where .Data.Pages ".Params.client" "!=" nil) -}}
    {{- $.Scratch.Add "clients_sites" (slice .Params.client) -}}
  {{- end -}}
  {{- $.Scratch.Add "clients" (union .Site.Params.clients.names ($.Scratch.Get "clients_sites")) -}}
  {{- $.Scratch.Set "lower_clients" (slice) -}}
  {{- range ($.Scratch.Get "clients") -}}
    {{- $.Scratch.Add "lower_clients" (lower . ) -}}
  {{- end -}}
  {{- $.Scratch.Set "clients_sorted" (slice) -}}
  {{- range sort ($.Scratch.Get "lower_clients") -}}
    {{- $lower_int := . -}}
    {{- range $.Scratch.Get "clients"}}
      {{ if eq (lower .) $lower_int }}
        {{- $.Scratch.Add "clients_sorted" ( . ) -}}
      {{- else -}}
      {{ end }}
    {{- end -}}
  {{- end -}}
  <span>{{ delimit (.Scratch.Get "clients_sorted") ", </span> <span>" }}</span>
```