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<span translate="no">Plausible.Cldr.Number.Transliterate</span>
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<small class="app-vsn" translate="no">(Plausible v0.0.1)</small>
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</h1>
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<section id="moduledoc">
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<p>Transliteration for digits and separators.</p><p>Transliterating a string is an expensive business. First the string has to
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be exploded into its component graphemes. Then for each grapheme we have
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to map to the equivalent in the other <code class="inline">{locale, number_system}</code>. Then we
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have to reassemble the string.</p><p>Effort is made to short circuit where possible. Transliteration is not
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required for any <code class="inline">{locale, number_system}</code> that is the same as <code class="inline">{"en", "latn"}</code> since the implementation uses this combination for the placeholders during
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formatting already. When short circuiting is possible (typically the en-*
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locales with "latn" number_system - the total number of short circuited
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locales is 211 of the 537 in CLDR) the overall number formatting is twice as
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fast than when formal transliteration is required.</p><h3 id="module-configuring-precompilation-of-digit-transliterations" class="section-heading">
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<a href="#module-configuring-precompilation-of-digit-transliterations">
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<i class="ri-link-m" aria-hidden="true"></i>
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Configuring precompilation of digit transliterations
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</a>
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</h3>
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<p>This module includes <a href="https://hexdocs.pm/ex_cldr_numbers/2.31.3/Cldr.Number.Transliterate.html#transliterate_digits/3"><code class="inline">Cldr.Number.Transliterate.transliterate_digits/3</code></a> which transliterates
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digits between number systems. For example from :arabic to :latn. Since generating a
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transliteration map is slow, pairs of transliterations can be configured so that the
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transliteration map is created at compile time and therefore speeding up transliteration at
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run time.</p><p>To configure these transliteration pairs, add the to the <code class="inline">use Cldr</code> configuration
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in a backend module:</p><pre><code class="makeup elixir" translate="no"><span class="kd">defmodule</span><span class="w"> </span><span class="nc">MyApp.Cldr</span><span class="w"> </span><span class="k" data-group-id="0882663055-1">do</span><span class="w">
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</span><span class="kn">use</span><span class="w"> </span><span class="nc">Cldr</span><span class="p">,</span><span class="w">
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</span><span class="ss">locale</span><span class="p">:</span><span class="w"> </span><span class="p" data-group-id="0882663055-2">[</span><span class="s">"en"</span><span class="p">,</span><span class="w"> </span><span class="s">"fr"</span><span class="p">,</span><span class="w"> </span><span class="s">"th"</span><span class="p" data-group-id="0882663055-2">]</span><span class="p">,</span><span class="w">
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</span><span class="ss">default_locale</span><span class="p">:</span><span class="w"> </span><span class="s">"en"</span><span class="p">,</span><span class="w">
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</span><span class="ss">precompile_transliterations</span><span class="p">:</span><span class="w"> </span><span class="p" data-group-id="0882663055-3">[</span><span class="p" data-group-id="0882663055-4">{</span><span class="ss">:latn</span><span class="p">,</span><span class="w"> </span><span class="ss">:thai</span><span class="p" data-group-id="0882663055-4">}</span><span class="p">,</span><span class="w"> </span><span class="p" data-group-id="0882663055-5">{</span><span class="ss">:arab</span><span class="p">,</span><span class="w"> </span><span class="ss">:thai</span><span class="p" data-group-id="0882663055-5">}</span><span class="p" data-group-id="0882663055-3">]</span><span class="w">
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</span><span class="k" data-group-id="0882663055-1">end</span></code></pre><p>Where each tuple in the list configures one transliteration map. In this example, two maps are
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configured: from <code class="inline">:latn</code> to <code class="inline">:thai</code> and from <code class="inline">:arab</code> to <code class="inline">:thai</code>.</p><p>A list of configurable number systems is returned by <a href="https://hexdocs.pm/ex_cldr_numbers/2.31.3/Cldr.Number.System.html#systems_with_digits/0"><code class="inline">Cldr.Number.System.systems_with_digits/0</code></a>.</p><p>If a transliteration is requested between two number pairs that have not been configured for
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precompilation, a warning is logged.</p>
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</section>
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<section id="summary" class="details-list">
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<h1 class="section-heading">
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<a class="hover-link" href="#summary">
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<i class="ri-link-m" aria-hidden="true"></i>
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Summary
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</a>
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</h1>
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<div class="summary-functions summary">
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<h2>
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<a href="#functions">Functions</a>
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</h2>
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<div class="summary-row">
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<div class="summary-signature">
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<a href="#transliterate/3" translate="no">transliterate(sequence, locale \\ Plausible.Cldr.get_locale(), number_system \\ System.default_number_system_type())</a>
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</div>
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<div class="summary-synopsis"><p>Transliterates from latin digits to another number system's digits.</p></div>
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</div>
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<div class="summary-row">
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<div class="summary-signature">
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<a href="#transliterate!/3" translate="no">transliterate!(sequence, locale, number_system)</a>
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</div>
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</div>
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<div class="summary-row">
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<div class="summary-signature">
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<a href="#transliterate_digits/3" translate="no">transliterate_digits(digits, from_system, to_system)</a>
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</div>
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<div class="summary-synopsis"><p>Transliterates digits from one number system to another number system</p></div>
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</div>
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</div>
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</section>
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<section id="functions" class="details-list">
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<h1 class="section-heading">
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<a class="hover-link" href="#functions">
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<i class="ri-link-m" aria-hidden="true"></i>
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Functions
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</h1>
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<div class="functions-list">
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<section class="detail" id="transliterate/3">
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<span id="transliterate/1"></span>
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<span id="transliterate/2"></span>
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<a href="#transliterate/3" class="detail-link" title="Link to this function">
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<span class="sr-only">Link to this function</span>
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</a>
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<h1 class="signature" translate="no">transliterate(sequence, locale \\ Plausible.Cldr.get_locale(), number_system \\ System.default_number_system_type())</h1>
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<a href="https://github.com/plausible/analytics/blob/main/lib/plausible/cldr.ex#L1" class="icon-action" rel="help" title="View Source">
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<i class="ri-code-s-slash-line" aria-hidden="true"></i>
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<span class="sr-only">View Source</span>
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</a>
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</div>
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<section class="docstring">
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<div class="specs">
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<pre translate="no"><span class="attribute">@spec</span> transliterate(
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<a href="https://hexdocs.pm/elixir/String.html#t:t/0">String.t</a>(),
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<a href="https://hexdocs.pm/ex_cldr/2.37.2/Cldr.LanguageTag.html#t:t/0">Cldr.LanguageTag.t</a>() | <a href="https://hexdocs.pm/ex_cldr/2.37.2/Cldr.Locale.html#t:locale_name/0">Cldr.Locale.locale_name</a>(),
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<a href="https://hexdocs.pm/ex_cldr_numbers/2.31.3/Cldr.Number.System.html#t:system_name/0">Cldr.Number.System.system_name</a>() | <a href="https://hexdocs.pm/ex_cldr_numbers/2.31.3/Cldr.Number.System.html#t:types/0">Cldr.Number.System.types</a>()
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) :: <a href="https://hexdocs.pm/elixir/String.html#t:t/0">String.t</a>() | {:error, {<a href="https://hexdocs.pm/elixir/typespecs.html#built-in-types">module</a>(), <a href="https://hexdocs.pm/elixir/String.html#t:t/0">String.t</a>()}}</pre>
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</div>
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<p>Transliterates from latin digits to another number system's digits.</p><p>Transliterates the latin digits 0..9 to their equivalents in
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another number system. Also transliterates the decimal and grouping
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separators as well as the plus, minus and exponent symbols. Any other character
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in the string will be returned "as is".</p><h2 id="transliterate/3-arguments" class="section-heading">
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<a href="#transliterate/3-arguments">
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<i class="ri-link-m" aria-hidden="true"></i>
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Arguments
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</a>
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</h2>
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<ul><li><p><code class="inline">sequence</code> is the string to be transliterated.</p></li><li><p><code class="inline">locale</code> is any known locale, defaulting to <a href="Plausible.Cldr.html#get_locale/0"><code class="inline">Plausible.Cldr.get_locale/0</code></a>.</p></li><li><p><code class="inline">number_system</code> is any known number system. If expressed as a <code class="inline">string</code> it
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is the actual name of a known number system. If epressed as an <code class="inline">atom</code> it is
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used as a key to look up a number system for the locale (the usual keys are
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<code class="inline">:default</code> and <code class="inline">:native</code> but :traditional and :finance are also part of the
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standard). See <a href="Plausible.Cldr.Number.System.html#number_systems_for/1"><code class="inline">Plausible.Cldr.Number.System.number_systems_for/1</code></a> for a locale to
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see what number system types are defined. The default is <code class="inline">:default</code>.</p></li></ul><p>For available number systems see <a href="https://hexdocs.pm/ex_cldr_numbers/2.31.3/Cldr.Number.System.html#number_systems/0"><code class="inline">Cldr.Number.System.number_systems/0</code></a>
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and <a href="Plausible.Cldr.Number.System.html#number_systems_for/1"><code class="inline">Plausible.Cldr.Number.System.number_systems_for/1</code></a>. Also see
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<a href="Plausible.Cldr.Number.Symbol.html#number_symbols_for/1"><code class="inline">Plausible.Cldr.Number.Symbol.number_symbols_for/1</code></a>.</p><h2 id="transliterate/3-examples" class="section-heading">
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<a href="#transliterate/3-examples">
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<i class="ri-link-m" aria-hidden="true"></i>
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Examples
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</a>
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</h2>
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<pre><code class="makeup elixir" translate="no"><span class="gp unselectable">iex> </span><span class="nc">Plausible.Cldr.Number.Transliterate</span><span class="o">.</span><span class="n">transliterate</span><span class="p" data-group-id="1245198117-1">(</span><span class="s">"123556"</span><span class="p" data-group-id="1245198117-1">)</span><span class="w">
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</span><span class="s">"123556"</span><span class="w">
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</span><span class="gp unselectable">iex> </span><span class="nc">Plausible.Cldr.Number.Transliterate</span><span class="o">.</span><span class="n">transliterate</span><span class="p" data-group-id="1245198117-2">(</span><span class="s">"123,556.000"</span><span class="p">,</span><span class="w"> </span><span class="s">"fr"</span><span class="p">,</span><span class="w"> </span><span class="ss">:default</span><span class="p" data-group-id="1245198117-2">)</span><span class="w">
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</span><span class="s">"123 556,000"</span><span class="w">
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</span><span class="gp unselectable">iex> </span><span class="nc">Plausible.Cldr.Number.Transliterate</span><span class="o">.</span><span class="n">transliterate</span><span class="p" data-group-id="1245198117-3">(</span><span class="s">"123556"</span><span class="p">,</span><span class="w"> </span><span class="s">"th"</span><span class="p">,</span><span class="w"> </span><span class="ss">:default</span><span class="p" data-group-id="1245198117-3">)</span><span class="w">
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</span><span class="s">"123556"</span><span class="w">
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||
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</span><span class="gp unselectable">iex> </span><span class="nc">Plausible.Cldr.Number.Transliterate</span><span class="o">.</span><span class="n">transliterate</span><span class="p" data-group-id="1245198117-4">(</span><span class="s">"123556"</span><span class="p">,</span><span class="w"> </span><span class="s">"th"</span><span class="p">,</span><span class="w"> </span><span class="s">"thai"</span><span class="p" data-group-id="1245198117-4">)</span><span class="w">
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</span><span class="s">"๑๒๓๕๕๖"</span><span class="w">
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</span><span class="gp unselectable">iex> </span><span class="nc">Plausible.Cldr.Number.Transliterate</span><span class="o">.</span><span class="n">transliterate</span><span class="p" data-group-id="1245198117-5">(</span><span class="s">"123556"</span><span class="p">,</span><span class="w"> </span><span class="s">"th"</span><span class="p">,</span><span class="w"> </span><span class="ss">:native</span><span class="p" data-group-id="1245198117-5">)</span><span class="w">
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</span><span class="s">"๑๒๓๕๕๖"</span><span class="w">
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</span><span class="gp unselectable">iex> </span><span class="nc">Plausible.Cldr.Number.Transliterate</span><span class="o">.</span><span class="n">transliterate</span><span class="p" data-group-id="1245198117-6">(</span><span class="s">"Some number is: 123556"</span><span class="p">,</span><span class="w"> </span><span class="s">"th"</span><span class="p">,</span><span class="w"> </span><span class="s">"thai"</span><span class="p" data-group-id="1245198117-6">)</span><span class="w">
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</span><span class="s">"Some number is: ๑๒๓๕๕๖"</span></code></pre>
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||
</section>
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</section>
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||
<section class="detail" id="transliterate!/3">
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||
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||
<div class="detail-header">
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||
<a href="#transliterate!/3" class="detail-link" title="Link to this function">
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||
<i class="ri-link-m" aria-hidden="true"></i>
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||
<span class="sr-only">Link to this function</span>
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||
</a>
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<h1 class="signature" translate="no">transliterate!(sequence, locale, number_system)</h1>
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||
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<a href="https://github.com/plausible/analytics/blob/main/lib/plausible/cldr.ex#L1" class="icon-action" rel="help" title="View Source">
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||
<i class="ri-code-s-slash-line" aria-hidden="true"></i>
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<span class="sr-only">View Source</span>
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</a>
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</div>
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||
|
||
<section class="docstring">
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||
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||
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||
</section>
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||
</section>
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<section class="detail" id="transliterate_digits/3">
|
||
|
||
<div class="detail-header">
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||
<a href="#transliterate_digits/3" class="detail-link" title="Link to this function">
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||
<i class="ri-link-m" aria-hidden="true"></i>
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||
<span class="sr-only">Link to this function</span>
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||
</a>
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<h1 class="signature" translate="no">transliterate_digits(digits, from_system, to_system)</h1>
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||
|
||
<a href="https://github.com/plausible/analytics/blob/main/lib/plausible/cldr.ex#L1" class="icon-action" rel="help" title="View Source">
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||
<i class="ri-code-s-slash-line" aria-hidden="true"></i>
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<span class="sr-only">View Source</span>
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</a>
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||
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||
</div>
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||
|
||
<section class="docstring">
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||
|
||
<div class="specs">
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||
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||
<pre translate="no"><span class="attribute">@spec</span> transliterate_digits(
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<a href="https://hexdocs.pm/elixir/String.html#t:t/0">String.t</a>(),
|
||
<a href="https://hexdocs.pm/ex_cldr_numbers/2.31.3/Cldr.Number.System.html#t:system_name/0">Cldr.Number.System.system_name</a>(),
|
||
<a href="https://hexdocs.pm/ex_cldr_numbers/2.31.3/Cldr.Number.System.html#t:system_name/0">Cldr.Number.System.system_name</a>()
|
||
) :: <a href="https://hexdocs.pm/elixir/String.html#t:t/0">String.t</a>()</pre>
|
||
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||
</div>
|
||
|
||
<p>Transliterates digits from one number system to another number system</p><ul><li><p><code class="inline">digits</code> is binary representation of a number</p></li><li><p><code class="inline">from_system</code> and <code class="inline">to_system</code> are number system names in atom form. See
|
||
<a href="https://hexdocs.pm/ex_cldr_numbers/2.31.3/Cldr.Number.System.html#systems_with_digits/0"><code class="inline">Cldr.Number.System.systems_with_digits/0</code></a> for available number systems.</p></li></ul><h2 id="transliterate_digits/3-example" class="section-heading">
|
||
<a href="#transliterate_digits/3-example">
|
||
<i class="ri-link-m" aria-hidden="true"></i>
|
||
Example
|
||
</a>
|
||
</h2>
|
||
<pre><code class="makeup elixir" translate="no"><span class="gp unselectable">iex> </span><span class="nc">Plausible.Cldr.Number.Transliterate</span><span class="o">.</span><span class="n">transliterate_digits</span><span class="w"> </span><span class="s">"٠١٢٣٤٥٦٧٨٩"</span><span class="p">,</span><span class="w"> </span><span class="ss">:arab</span><span class="p">,</span><span class="w"> </span><span class="ss">:latn</span><span class="w">
|
||
</span><span class="s">"0123456789"</span></code></pre>
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