feat(i18n): implement pluralization logic (#277)

Co-authored-by: welpo <welpo@users.noreply.github.com>
This commit is contained in:
Mohammed Alotaibi
2024-02-16 17:41:25 +03:00
committed by GitHub
parent daef40338c
commit c4893d4fdd
22 changed files with 368 additions and 144 deletions

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@@ -1,3 +1,72 @@
{% macro translate(key, language_strings="", default="") %}
{{- language_strings[key] | default(value=default) | safe -}}
{#- Dynamically selects the appropriate translation key based on the provided `number` and `lang` context.
If a `number` is provided, the macro will attempt to pluralize the translation key based on the language's rules.
Parameters:
- `key`: The base key for the translation string, matching the i18n files. Example: `results` to get `zero_results`, `one_results`, `many_results`, etc.
- `number`: Optional. The numerical value associated with the key.
- `language_strings`: A dictionary containing the translation strings.
- `default`: A default string to use if no translation is found for the key.
- `replace`: Optional. If `true`, the macro will replace the `$NUMBER` placeholder in the translation string with the provided `number`.
The macro supports special pluralization rules for:
- Arabic (`ar`): Has unique forms for zero, one, two, few, and many.
- Slavic languages: Pluralization depends on the last digit of the number, with exceptions for numbers ending in 11-14.
NOTE: If the logic for pluralization is modified, it needs to be replicated on the JavaScript search.
Files: static/js/searchElasticlunr.js and its minified version at static/js/searchElasticlunr.min.js
Function name: getPluralizationKey -#}
{% macro translate(key, number=-1, language_strings="", default="", replace=true) %}
{%- set slavic_plural_languages = ["uk", "be", "bs", "hr", "ru", "sr"] -%}
{%- set key_prefix = "" -%}
{#- `zero_` and `one_` are common cases. We handle "many" (plural) later, after language-specific pluralization -#}
{%- if number == 0 -%}
{%- set key_prefix = "zero_" -%}
{%- elif number == 1 -%}
{%- set key_prefix = "one_" -%}
{%- endif -%}
{#- Pluralization -#}
{%- if number != -1 and key_prefix == "" -%}
{#- Arabic -#}
{%- if lang == "ar" -%}
{%- set modulo = number % 100 -%}
{%- if number == 2 -%}
{%- set key_prefix = "two_" -%}
{%- elif modulo >= 3 and modulo <= 10 -%}
{%- set key_prefix = "few_" -%}
{%- else -%}
{%- set key_prefix = "many_" -%}
{%- endif -%}
{#- Slavic languages like Russian or Ukrainian -#}
{%- elif lang in slavic_plural_languages -%}
{%- set modulo10 = number % 10 -%}
{%- set modulo100 = number % 100 -%}
{%- if modulo10 == 1 and modulo100 != 11 -%}
{%- set key_prefix = "one_" -%}
{%- elif modulo10 >= 2 and modulo10 <= 4 -%}
{%- if modulo100 >= 12 and modulo100 <= 14 -%}
{%- set key_prefix = "many_" -%}
{%- else -%}
{%- set key_prefix = "few_" -%}
{%- endif -%}
{%- else -%}
{%- set key_prefix = "many_" -%}
{%- endif -%}
{%- else -%}
{#- Default pluralization -#}
{#- Zero and one are already handled -#}
{%- set key_prefix = "many_" -%}
{%- endif -%}
{%- endif -%}
{#- Translated string -#}
{%- set final_key = key_prefix ~ key -%}
{%- set translated_text = language_strings[final_key] | default(value=default) | safe -%}
{#- Replace $NUMBER with the number -#}
{%- if replace -%}
{%- set translated_text = translated_text | replace(from="$NUMBER", to=number | as_str) -%}
{%- endif -%}
{{- translated_text -}}
{% endmacro %}

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@@ -69,7 +69,7 @@
{# page settings override config settings #}
{% if macros_settings::evaluate_setting_priority(setting="show_reading_time", page=page, default_global_value=true) == "true" %}
{{ separator }} <li title="{{ page.word_count }} {{ macros_translate::translate(key="words", default="words", language_strings=language_strings) }}">{{ page.reading_time }}&nbsp;{{ macros_translate::translate(key="min_read", default="min read", language_strings=language_strings) }}</li>
{{ separator }} <li title="{{ macros_translate::translate(key="words", number=page.word_count, default="$NUMBER words", language_strings=language_strings) }}">{{ macros_translate::translate(key="min_read", number=page.reading_time, default="$NUMBER min read", language_strings=language_strings) }}</li>
{% endif %}
{%- if page.taxonomies and page.taxonomies.tags -%}

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@@ -16,8 +16,14 @@
</div>
<div id="results-container">
<div id="results-info">
<span id="n-results">0</span>&nbsp;<span id="result-text-singular">{{ macros_translate::translate(key='result', default='result', language_strings=language_strings) }}</span>
<span id="result-text-plural">{{ macros_translate::translate(key='results', default='results', language_strings=language_strings) }}</span>
{#- Add the strings here so JavaScript can grab them -#}
{#- These are used in all languages -#}
<span id="zero_results"> {{ macros_translate::translate(key='results', number=0, default='No results', language_strings=language_strings, replace=false) }}</span>
<span id="one_results"> {{ macros_translate::translate(key='results', number=1, default='1 result', language_strings=language_strings, replace=false) }}</span>
<span id="many_results"> {{ macros_translate::translate(key='results', number=11, default='$NUMBER results', language_strings=language_strings, replace=false) }}</span>
{#- Strings for specific languages -#}
<span id="two_results"> {{ macros_translate::translate(key='results', number=2, default='$NUMBER results', language_strings=language_strings, replace=false) }}</span>
<span id="few_results"> {{ macros_translate::translate(key='results', number=2, default='$NUMBER results', language_strings=language_strings, replace=false) }}</span>
</div>
<div id="results" role="listbox"></div>
</div>

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@@ -11,28 +11,21 @@
<ul class="tags">
{%- for term in terms -%}
<li class="tags-item">
{%- set number_of_posts = term.pages | length -%}
{% if config.extra.compact_tags %}
{# Shows the number of posts per tag as a superscript #}
<a href="{{ term.permalink | safe }}"
aria-label="{{ term.name }}
{{ term.pages | length }}
{% if term.pages | length == 1 -%}
{{- macros_translate::translate(key="post", default="post", language_strings=language_strings) -}}
{%- else -%}
{{- macros_translate::translate(key="posts", default="posts", language_strings=language_strings) -}}
{%- endif -%}">
aria-label="{{ term.name }}
{{ term.pages | length }}
{{- macros_translate::translate(key="posts", number=number_of_posts, default="$NUMBER posts", language_strings=language_strings) -}}
">
{{ term.name }}
</a> <sup>{{ term.pages | length }}</sup>
</a> <sup>{{ number_of_posts }}</sup>
{% else %}
<a href="{{ term.permalink | safe }}">
{{ term.name }}</a>
{{ term.pages | length }}{%- if term.pages | length == 1 %}
{# Only one post. Singular. #}
{{- macros_translate::translate(key="post", default="post", language_strings=language_strings) -}}
{% elif term.pages | length > 1 %}
{# More than one post per tag. Plural. #}
{{- macros_translate::translate(key="posts", default="posts", language_strings=language_strings) -}}
{%- endif -%}
{{ term.name }} </a>
<span> </span>
{{- macros_translate::translate(key="posts", number=number_of_posts, default="$NUMBER posts", language_strings=language_strings) -}}
{% endif %}
</li>
{%- endfor -%}

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@@ -11,28 +11,21 @@
<ul class="tags">
{%- for term in terms -%}
<li class="tags-item">
{%- set number_of_posts = term.pages | length -%}
{% if config.extra.compact_tags %}
{# Shows the number of posts per tag as a superscript #}
<a href="{{ term.permalink | safe }}"
aria-label="{{ term.name }}
{{ term.pages | length }}
{% if term.pages | length == 1 -%}
{{- macros_translate::translate(key="post", default="post", language_strings=language_strings) -}}
{%- else -%}
{{- macros_translate::translate(key="posts", default="posts", language_strings=language_strings) -}}
{%- endif -%}">
aria-label="{{ term.name }}
{{ term.pages | length }}
{{- macros_translate::translate(key="posts", number=number_of_posts, default="$NUMBER posts", language_strings=language_strings) -}}
">
{{ term.name }}
</a> <sup>{{ term.pages | length }}</sup>
</a> <sup>{{ number_of_posts }}</sup>
{% else %}
<a href="{{ term.permalink | safe }}">
{{ term.name }}</a>
{{ term.pages | length }}{%- if term.pages | length == 1 %}
{# Only one post. Singular. #}
{{- macros_translate::translate(key="post", default="post", language_strings=language_strings) -}}
{% elif term.pages | length > 1 %}
{# More than one post per tag. Plural. #}
{{- macros_translate::translate(key="posts", default="posts", language_strings=language_strings) -}}
{%- endif -%}
{{ term.name }} </a>
<span> </span>
{{- macros_translate::translate(key="posts", number=number_of_posts, default="$NUMBER posts", language_strings=language_strings) -}}
{% endif %}
</li>
{%- endfor -%}