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<h1>
<a href="https://github.com/plausible/analytics/blob/main/lib/plausible/cldr.ex#L1" title="View Source" class="icon-action" rel="help">
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<span translate="no">Plausible.Cldr.Number</span>
<small class="app-vsn" translate="no">(Plausible v0.0.1)</small>
</h1>
<section id="moduledoc">
<p>Formats numbers and currencies based upon CLDR's decimal formats specification.</p><p>The format specification is documentated in <a href="http://unicode.org/reports/tr35/tr35-numbers.html#Number_Formats">Unicode TR35</a>.
There are several classes of formatting including non-scientific, scientific,
rules based (for spelling and ordinal formats), compact formats that display <code class="inline">1k</code>
rather than <code class="inline">1,000</code> and so on. See <a href="https://hexdocs.pm/ex_cldr_numbers/2.32.3/Cldr.Number.html#to_string/2"><code class="inline">Cldr.Number.to_string/2</code></a> for specific formatting
options.</p><h3 id="module-non-scientific-notation-formatting" class="section-heading">
<a href="#module-non-scientific-notation-formatting" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Non-Scientific Notation Formatting</span>
</h3>
<p>The following description applies to formats that do not use scientific
notation or significant digits:</p><ul><li><p>If the number of actual integer digits exceeds the maximum integer digits,
then only the least significant digits are shown. For example, 1997 is
formatted as &quot;97&quot; if the maximum integer digits is set to 2.</p></li><li><p>If the number of actual integer digits is less than the minimum integer
digits, then leading zeros are added. For example, 1997 is formatted as
&quot;01997&quot; if the minimum integer digits is set to 5.</p></li><li><p>If the number of actual fraction digits exceeds the maximum fraction
digits, then half-even rounding it performed to the maximum fraction
digits. For example, 0.125 is formatted as &quot;0.12&quot; if the maximum fraction
digits is 2. This behavior can be changed by specifying a rounding
increment and a rounding mode.</p></li><li><p>If the number of actual fraction digits is less than the minimum fraction
digits, then trailing zeros are added. For example, 0.125 is formatted as
&quot;0.1250&quot; if the minimum fraction digits is set to 4.</p></li><li><p>Trailing fractional zeros are not displayed if they occur j positions after
the decimal, where j is less than the maximum fraction digits. For example,
0.10004 is formatted as &quot;0.1&quot; if the maximum fraction digits is four or
less.</p></li></ul><h3 id="module-scientific-notation-formatting" class="section-heading">
<a href="#module-scientific-notation-formatting" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Scientific Notation Formatting</span>
</h3>
<p>Numbers in scientific notation are expressed as the product of a mantissa and
a power of ten, for example, 1234 can be expressed as 1.234 x 10^3. The
mantissa is typically in the half-open interval [1.0, 10.0) or sometimes
[0.0, 1.0), but it need not be. In a pattern, the exponent character
immediately followed by one or more digit characters indicates scientific
notation. Example: &quot;0.###E0&quot; formats the number 1234 as &quot;1.234E3&quot;.</p><ul><li><p>The number of digit characters after the exponent character gives the
minimum exponent digit count. There is no maximum. Negative exponents are
formatted using the localized minus sign, not the prefix and suffix from
the pattern. This allows patterns such as &quot;0.###E0 m/s&quot;. To prefix positive
exponents with a localized plus sign, specify '+' between the exponent and
the digits: &quot;0.###E+0&quot; will produce formats &quot;1E+1&quot;, &quot;1E+0&quot;, &quot;1E-1&quot;, and so
on. (In localized patterns, use the localized plus sign rather than '+'.)</p></li><li><p>The minimum number of integer digits is achieved by adjusting the exponent.
Example: 0.00123 formatted with &quot;00.###E0&quot; yields &quot;12.3E-4&quot;. This only
happens if there is no maximum number of integer digits. If there is a
maximum, then the minimum number of integer digits is fixed at one.</p></li><li><p>The maximum number of integer digits, if present, specifies the exponent
grouping. The most common use of this is to generate engineering notation,
in which the exponent is a multiple of three, for example, &quot;##0.###E0&quot;. The
number 12345 is formatted using &quot;##0.####E0&quot; as &quot;12.345E3&quot;.</p></li><li><p>When using scientific notation, the formatter controls the digit counts
using significant digits logic. The maximum number of significant digits
limits the total number of integer and fraction digits that will be shown
in the mantissa; it does not affect parsing. For example, 12345 formatted
with &quot;##0.##E0&quot; is &quot;12.3E3&quot;. Exponential patterns may not contain grouping
separators.</p></li></ul><h3 id="module-significant-digits" class="section-heading">
<a href="#module-significant-digits" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Significant Digits</span>
</h3>
<p>There are two ways of controlling how many digits are shows: (a)
significant digits counts, or (b) integer and fraction digit counts. Integer
and fraction digit counts are described above. When a formatter is using
significant digits counts, it uses however many integer and fraction digits
are required to display the specified number of significant digits. It may
ignore min/max integer/fraction digits, or it may use them to the extent
possible.</p>
</section>
<section id="summary" class="details-list">
<h1 class="section-heading">
<a class="hover-link" href="#summary">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Summary</span>
</h1>
<div class="summary-functions summary">
<h2>
<a href="#functions">Functions</a>
</h2>
<div class="summary-row">
<div class="summary-signature">
<a href="#parse/2" translate="no">parse(string, options \\ [])</a>
</div>
<div class="summary-synopsis"><p>Parse a string locale-aware manner and return
a number.</p></div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#resolve_currencies/2" translate="no">resolve_currencies(list, options \\ [])</a>
</div>
<div class="summary-synopsis"><p>Resolve curencies from strings within
a list.</p></div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#resolve_currency/2" translate="no">resolve_currency(string, options \\ [])</a>
</div>
<div class="summary-synopsis"><p>Resolve a currency from a string</p></div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#resolve_per/2" translate="no">resolve_per(string, options \\ [])</a>
</div>
<div class="summary-synopsis"><p>Resolve and tokenize percent or permille
from the beginning and/or the end of a string</p></div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#resolve_pers/2" translate="no">resolve_pers(list, options \\ [])</a>
</div>
<div class="summary-synopsis"><p>Resolve and tokenize percent and permille
sybols from strings within a list.</p></div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#scan/2" translate="no">scan(string, options \\ [])</a>
</div>
<div class="summary-synopsis"><p>Scans a string locale-aware manner and returns
a list of strings and numbers.</p></div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#to_approx_string/2" translate="no">to_approx_string(number, options \\ [])</a>
</div>
<div class="summary-synopsis"><p>Formats a number and applies the <code class="inline">:approximately</code> format for
a locale and number system.</p></div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#to_at_least_string/2" translate="no">to_at_least_string(number, options \\ [])</a>
</div>
<div class="summary-synopsis"><p>Formats a number and applies the <code class="inline">:at_least</code> format for
a locale and number system.</p></div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#to_at_most_string/2" translate="no">to_at_most_string(number, options \\ [])</a>
</div>
<div class="summary-synopsis"><p>Formats a number and applies the <code class="inline">:at_most</code> format for
a locale and number system.</p></div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#to_range_string/2" translate="no">to_range_string(range, options \\ [])</a>
</div>
<div class="summary-synopsis"><p>Formats the first and last numbers of a range and applies
the <code class="inline">:range</code> format for a locale and number system.</p></div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#to_string/2" translate="no">to_string(number, options \\ default_options())</a>
</div>
<div class="summary-synopsis"><p>Returns a number formatted into a string according to a format pattern and options.</p></div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#to_string!/2" translate="no">to_string!(number, options \\ default_options())</a>
</div>
<div class="summary-synopsis"><p>Same as the execution of <a href="#to_string/2"><code class="inline">to_string/2</code></a> but raises an exception if an error would be
returned.</p></div>
</div>
<div class="summary-row">
<div class="summary-signature">
<a href="#validate_number_system/2" translate="no">validate_number_system(locale, number_system)</a>
</div>
<div class="summary-synopsis"><p>Return a valid number system from a provided locale and number
system name or type.</p></div>
</div>
</div>
</section>
<section id="functions" class="details-list">
<h1 class="section-heading">
<a class="hover-link" href="#functions">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Functions</span>
</h1>
<div class="functions-list">
<section class="detail" id="parse/2">
<span id="parse/1"></span>
<div class="detail-header">
<a href="#parse/2" class="detail-link" title="Link to this function">
<i class="ri-link-m" aria-hidden="true"></i>
<span class="sr-only">Link to this function</span>
</a>
<h1 class="signature" translate="no">parse(string, options \\ [])</h1>
<a href="https://github.com/plausible/analytics/blob/main/lib/plausible/cldr.ex#L1" class="icon-action" rel="help" title="View Source">
<i class="ri-code-s-slash-line" aria-hidden="true"></i>
<span class="sr-only">View Source</span>
</a>
</div>
<section class="docstring">
<p>Parse a string locale-aware manner and return
a number.</p><h2 id="parse/2-arguments" class="section-heading">
<a href="#parse/2-arguments" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Arguments</span>
</h2>
<ul><li><p><code class="inline">string</code> is any <code class="inline">String.t</code></p></li><li><p><code class="inline">options</code> is a keyword list of options</p></li></ul><h2 id="parse/2-options" class="section-heading">
<a href="#parse/2-options" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Options</span>
</h2>
<ul><li><p><code class="inline">:number</code> is one of <code class="inline">:integer</code>, <code class="inline">:float</code>,
<code class="inline">:decimal</code> or <code class="inline">nil</code>. The default is <code class="inline">nil</code>
meaning that the type auto-detected as either
an <code class="inline">integer</code> or a <code class="inline">float</code>.</p></li><li><p><code class="inline">:locale</code> is any locale returned by
<a href="Plausible.Cldr.html#known_locale_names/0"><code class="inline">Plausible.Cldr.known_locale_names/0</code></a>
or a <code class="inline">Cldr.LanguageTag.t</code>. The default is
<a href="Plausible.Cldr.html#get_locale/0"><code class="inline">Plausible.Cldr.get_locale/0</code></a>.</p></li></ul><h2 id="parse/2-returns" class="section-heading">
<a href="#parse/2-returns" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Returns</span>
</h2>
<ul><li><p>A number of the requested or default type or</p></li><li><p><code class="inline">{:error, {exception, error}}</code> if no number could be determined</p></li></ul><h2 id="parse/2-notes" class="section-heading">
<a href="#parse/2-notes" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Notes</span>
</h2>
<p>This function parses a string to return a number but
in a locale-aware manner. It will normalise grouping
characters and decimal separators, different forms of
the <code class="inline">+</code> and <code class="inline">-</code> symbols that appear in Unicode and
strips any <code class="inline">_</code> characters that might be used for
formatting in a string. It then parses the number
using the Elixir standard library functions.</p><h2 id="parse/2-examples" class="section-heading">
<a href="#parse/2-examples" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Examples</span>
</h2>
<pre><code class="makeup elixir" translate="no"><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">parse</span><span class="p" data-group-id="5626167189-1">(</span><span class="s">&quot;1.000,34&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">locale</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;de&quot;</span><span class="p" data-group-id="5626167189-1">)</span><span class="w">
</span><span class="p" data-group-id="5626167189-2">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="mf">1000.34</span><span class="p" data-group-id="5626167189-2">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">parse</span><span class="p" data-group-id="5626167189-3">(</span><span class="s">&quot;-1_000_000.34&quot;</span><span class="p" data-group-id="5626167189-3">)</span><span class="w">
</span><span class="p" data-group-id="5626167189-4">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="o">-</span><span class="mf">1000000.34</span><span class="p" data-group-id="5626167189-4">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">parse</span><span class="p" data-group-id="5626167189-5">(</span><span class="s">&quot;1.000&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">locale</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;de&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">number</span><span class="p">:</span><span class="w"> </span><span class="ss">:integer</span><span class="p" data-group-id="5626167189-5">)</span><span class="w">
</span><span class="p" data-group-id="5626167189-6">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="mi">1000</span><span class="p" data-group-id="5626167189-6">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">parse</span><span class="p" data-group-id="5626167189-7">(</span><span class="s">&quot;1.000,34&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">locale</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;de&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">number</span><span class="p">:</span><span class="w"> </span><span class="ss">:integer</span><span class="p" data-group-id="5626167189-7">)</span><span class="w">
</span><span class="p" data-group-id="5626167189-8">{</span><span class="ss">:error</span><span class="p">,</span><span class="w">
</span><span class="p" data-group-id="5626167189-9">{</span><span class="nc">Cldr.Number.ParseError</span><span class="p">,</span><span class="w">
</span><span class="s">&quot;The string </span><span class="se">\&quot;</span><span class="s">1.000,34</span><span class="se">\&quot;</span><span class="s"> could not be parsed as a number&quot;</span><span class="p" data-group-id="5626167189-9">}</span><span class="p" data-group-id="5626167189-8">}</span></code></pre>
</section>
</section>
<section class="detail" id="resolve_currencies/2">
<span id="resolve_currencies/1"></span>
<div class="detail-header">
<a href="#resolve_currencies/2" class="detail-link" title="Link to this function">
<i class="ri-link-m" aria-hidden="true"></i>
<span class="sr-only">Link to this function</span>
</a>
<h1 class="signature" translate="no">resolve_currencies(list, options \\ [])</h1>
<a href="https://github.com/plausible/analytics/blob/main/lib/plausible/cldr.ex#L1" class="icon-action" rel="help" title="View Source">
<i class="ri-code-s-slash-line" aria-hidden="true"></i>
<span class="sr-only">View Source</span>
</a>
</div>
<section class="docstring">
<p>Resolve curencies from strings within
a list.</p><h2 id="resolve_currencies/2-arguments" class="section-heading">
<a href="#resolve_currencies/2-arguments" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Arguments</span>
</h2>
<ul><li><p><code class="inline">list</code> is any list in which currency
names and symbols are expected</p></li><li><p><code class="inline">options</code> is a keyword list of options</p></li></ul><h2 id="resolve_currencies/2-options" class="section-heading">
<a href="#resolve_currencies/2-options" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Options</span>
</h2>
<ul><li><p><code class="inline">:locale</code> is any valid locale returned by <a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.html#known_locale_names/1"><code class="inline">Cldr.known_locale_names/1</code></a>
or a <a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.LanguageTag.html"><code class="inline">Cldr.LanguageTag</code></a> struct returned by <a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.Locale.html#new!/2"><code class="inline">Cldr.Locale.new!/2</code></a>
The default is <code class="inline">Plausible.Cldr.get_locale()</code></p></li><li><p><code class="inline">:only</code> is an <code class="inline">atom</code> or list of <code class="inline">atoms</code> representing the
currencies or currency types to be considered for a match.
The equates to a list of acceptable currencies for parsing.
See the notes below for currency types.</p></li><li><p><code class="inline">:except</code> is an <code class="inline">atom</code> or list of <code class="inline">atoms</code> representing the
currencies or currency types to be not considered for a match.
This equates to a list of unacceptable currencies for parsing.
See the notes below for currency types.</p></li><li><p><code class="inline">:fuzzy</code> is a float greater than <code class="inline">0.0</code> and less than or
equal to <code class="inline">1.0</code> which is used as input to
<a href="https://hexdocs.pm/elixir/String.html#jaro_distance/2"><code class="inline">String.jaro_distance/2</code></a> to determine is the provided
currency string is <em>close enough</em> to a known currency
string for it to identify definitively a currency code.
It is recommended to use numbers greater than <code class="inline">0.8</code> in
order to reduce false positives.</p></li></ul><h2 id="resolve_currencies/2-notes" class="section-heading">
<a href="#resolve_currencies/2-notes" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Notes</span>
</h2>
<p>The <code class="inline">:only</code> and <code class="inline">:except</code> options accept a list of
currency codes and/or currency types. The following
types are recognised.</p><p>If both <code class="inline">:only</code> and <code class="inline">:except</code> are specified,
the <code class="inline">:except</code> entries take priority - that means
any entries in <code class="inline">:except</code> are removed from the <code class="inline">:only</code>
entries.</p><ul><li><p><code class="inline">:all</code>, the default, considers all currencies</p></li><li><p><code class="inline">:current</code> considers those currencies that have a <code class="inline">:to</code>
date of nil and which also is a known ISO4217 currency</p></li><li><p><code class="inline">:historic</code> is the opposite of <code class="inline">:current</code></p></li><li><p><code class="inline">:tender</code> considers currencies that are legal tender</p></li><li><p><code class="inline">:unannotated</code> considers currencies that don't have
&quot;(some string)&quot; in their names. These are usually
financial instruments.</p></li></ul><h2 id="resolve_currencies/2-examples" class="section-heading">
<a href="#resolve_currencies/2-examples" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Examples</span>
</h2>
<pre><code class="makeup elixir" translate="no"><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">scan</span><span class="p" data-group-id="7491344335-1">(</span><span class="s">&quot;100 US dollars&quot;</span><span class="p" data-group-id="7491344335-1">)</span><span class="w">
</span><span class="gp unselectable">...&gt; </span><span class="o">|&gt;</span><span class="w"> </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">resolve_currencies</span><span class="w">
</span><span class="p" data-group-id="7491344335-2">[</span><span class="mi">100</span><span class="p">,</span><span class="w"> </span><span class="ss">:USD</span><span class="p" data-group-id="7491344335-2">]</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">scan</span><span class="p" data-group-id="7491344335-3">(</span><span class="s">&quot;100 eurosports&quot;</span><span class="p" data-group-id="7491344335-3">)</span><span class="w">
</span><span class="gp unselectable">...&gt; </span><span class="o">|&gt;</span><span class="w"> </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">resolve_currencies</span><span class="p" data-group-id="7491344335-4">(</span><span class="ss">fuzzy</span><span class="p">:</span><span class="w"> </span><span class="mf">0.75</span><span class="p" data-group-id="7491344335-4">)</span><span class="w">
</span><span class="p" data-group-id="7491344335-5">[</span><span class="mi">100</span><span class="p">,</span><span class="w"> </span><span class="ss">:EUR</span><span class="p" data-group-id="7491344335-5">]</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">scan</span><span class="p" data-group-id="7491344335-6">(</span><span class="s">&quot;100 dollars des États-Unis&quot;</span><span class="p" data-group-id="7491344335-6">)</span><span class="w">
</span><span class="gp unselectable">...&gt; </span><span class="o">|&gt;</span><span class="w"> </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">resolve_currencies</span><span class="p" data-group-id="7491344335-7">(</span><span class="ss">locale</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;fr&quot;</span><span class="p" data-group-id="7491344335-7">)</span><span class="w">
</span><span class="p" data-group-id="7491344335-8">[</span><span class="mi">100</span><span class="p">,</span><span class="w"> </span><span class="ss">:USD</span><span class="p" data-group-id="7491344335-8">]</span></code></pre>
</section>
</section>
<section class="detail" id="resolve_currency/2">
<span id="resolve_currency/1"></span>
<div class="detail-header">
<a href="#resolve_currency/2" class="detail-link" title="Link to this function">
<i class="ri-link-m" aria-hidden="true"></i>
<span class="sr-only">Link to this function</span>
</a>
<h1 class="signature" translate="no">resolve_currency(string, options \\ [])</h1>
<a href="https://github.com/plausible/analytics/blob/main/lib/plausible/cldr.ex#L1" class="icon-action" rel="help" title="View Source">
<i class="ri-code-s-slash-line" aria-hidden="true"></i>
<span class="sr-only">View Source</span>
</a>
</div>
<section class="docstring">
<p>Resolve a currency from a string</p><h2 id="resolve_currency/2-arguments" class="section-heading">
<a href="#resolve_currency/2-arguments" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Arguments</span>
</h2>
<ul><li><p><code class="inline">list</code> is any list in which currency
names and symbols are expected</p></li><li><p><code class="inline">options</code> is a keyword list of options</p></li></ul><h2 id="resolve_currency/2-options" class="section-heading">
<a href="#resolve_currency/2-options" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Options</span>
</h2>
<ul><li><p><code class="inline">:locale</code> is any valid locale returned by <a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.html#known_locale_names/1"><code class="inline">Cldr.known_locale_names/1</code></a>
or a <a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.LanguageTag.html"><code class="inline">Cldr.LanguageTag</code></a> struct returned by <a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.Locale.html#new!/2"><code class="inline">Cldr.Locale.new!/2</code></a>
The default is <code class="inline">Plausible.Cldr.get_locale()</code></p></li><li><p><code class="inline">:only</code> is an <code class="inline">atom</code> or list of <code class="inline">atoms</code> representing the
currencies or currency types to be considered for a match.
The equates to a list of acceptable currencies for parsing.
See the notes below for currency types.</p></li><li><p><code class="inline">:except</code> is an <code class="inline">atom</code> or list of <code class="inline">atoms</code> representing the
currencies or currency types to be not considered for a match.
This equates to a list of unacceptable currencies for parsing.
See the notes below for currency types.</p></li><li><p><code class="inline">:fuzzy</code> is a float greater than <code class="inline">0.0</code> and less than or
equal to <code class="inline">1.0</code> which is used as input to
<a href="https://hexdocs.pm/elixir/String.html#jaro_distance/2"><code class="inline">String.jaro_distance/2</code></a> to determine is the provided
currency string is <em>close enough</em> to a known currency
string for it to identify definitively a currency code.
It is recommended to use numbers greater than <code class="inline">0.8</code> in
order to reduce false positives.</p></li></ul><h2 id="resolve_currency/2-returns" class="section-heading">
<a href="#resolve_currency/2-returns" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Returns</span>
</h2>
<ul><li><p>An ISO4217 currency code as an atom or</p></li><li><p><code class="inline">{:error, {exception, message}}</code></p></li></ul><h2 id="resolve_currency/2-notes" class="section-heading">
<a href="#resolve_currency/2-notes" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Notes</span>
</h2>
<p>The <code class="inline">:only</code> and <code class="inline">:except</code> options accept a list of
currency codes and/or currency types. The following
types are recognised.</p><p>If both <code class="inline">:only</code> and <code class="inline">:except</code> are specified,
the <code class="inline">:except</code> entries take priority - that means
any entries in <code class="inline">:except</code> are removed from the <code class="inline">:only</code>
entries.</p><ul><li><p><code class="inline">:all</code>, the default, considers all currencies</p></li><li><p><code class="inline">:current</code> considers those currencies that have a <code class="inline">:to</code>
date of nil and which also is a known ISO4217 currency</p></li><li><p><code class="inline">:historic</code> is the opposite of <code class="inline">:current</code></p></li><li><p><code class="inline">:tender</code> considers currencies that are legal tender</p></li><li><p><code class="inline">:unannotated</code> considers currencies that don't have
&quot;(some string)&quot; in their names. These are usually
financial instruments.</p></li></ul><h2 id="resolve_currency/2-examples" class="section-heading">
<a href="#resolve_currency/2-examples" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Examples</span>
</h2>
<pre><code class="makeup elixir" translate="no"><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">resolve_currency</span><span class="p" data-group-id="3503279671-1">(</span><span class="s">&quot;US dollars&quot;</span><span class="p" data-group-id="3503279671-1">)</span><span class="w">
</span><span class="p" data-group-id="3503279671-2">[</span><span class="ss">:USD</span><span class="p" data-group-id="3503279671-2">]</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">resolve_currency</span><span class="p" data-group-id="3503279671-3">(</span><span class="s">&quot;100 eurosports&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">fuzzy</span><span class="p">:</span><span class="w"> </span><span class="mf">0.75</span><span class="p" data-group-id="3503279671-3">)</span><span class="w">
</span><span class="p" data-group-id="3503279671-4">[</span><span class="ss">:EUR</span><span class="p" data-group-id="3503279671-4">]</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">resolve_currency</span><span class="p" data-group-id="3503279671-5">(</span><span class="s">&quot;dollars des États-Unis&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">locale</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;fr&quot;</span><span class="p" data-group-id="3503279671-5">)</span><span class="w">
</span><span class="p" data-group-id="3503279671-6">[</span><span class="ss">:USD</span><span class="p" data-group-id="3503279671-6">]</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">resolve_currency</span><span class="p" data-group-id="3503279671-7">(</span><span class="s">&quot;not a known currency&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">locale</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;fr&quot;</span><span class="p" data-group-id="3503279671-7">)</span><span class="w">
</span><span class="p" data-group-id="3503279671-8">{</span><span class="ss">:error</span><span class="p">,</span><span class="w">
</span><span class="p" data-group-id="3503279671-9">{</span><span class="nc">Cldr.UnknownCurrencyError</span><span class="p">,</span><span class="w">
</span><span class="s">&quot;The currency </span><span class="se">\&quot;</span><span class="s">not a known currency</span><span class="se">\&quot;</span><span class="s"> is unknown or not supported&quot;</span><span class="p" data-group-id="3503279671-9">}</span><span class="p" data-group-id="3503279671-8">}</span></code></pre>
</section>
</section>
<section class="detail" id="resolve_per/2">
<span id="resolve_per/1"></span>
<div class="detail-header">
<a href="#resolve_per/2" class="detail-link" title="Link to this function">
<i class="ri-link-m" aria-hidden="true"></i>
<span class="sr-only">Link to this function</span>
</a>
<h1 class="signature" translate="no">resolve_per(string, options \\ [])</h1>
<a href="https://github.com/plausible/analytics/blob/main/lib/plausible/cldr.ex#L1" class="icon-action" rel="help" title="View Source">
<i class="ri-code-s-slash-line" aria-hidden="true"></i>
<span class="sr-only">View Source</span>
</a>
<span class="note">(since 2.22.0)</span>
</div>
<section class="docstring">
<div class="specs">
<pre translate="no"><span class="attribute">@spec</span> resolve_per(<a href="https://hexdocs.pm/elixir/String.html#t:t/0">String.t</a>(), <a href="https://hexdocs.pm/elixir/Keyword.html#t:t/0">Keyword.t</a>()) ::
<a href="https://hexdocs.pm/ex_cldr_numbers/2.32.3/Cldr.Number.Parser.html#t:per/0">Cldr.Number.Parser.per</a>()
| [<a href="https://hexdocs.pm/ex_cldr_numbers/2.32.3/Cldr.Number.Parser.html#t:per/0">Cldr.Number.Parser.per</a>() | <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>
</div>
<p>Resolve and tokenize percent or permille
from the beginning and/or the end of a string</p><h2 id="resolve_per/2-arguments" class="section-heading">
<a href="#resolve_per/2-arguments" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Arguments</span>
</h2>
<ul><li><p><code class="inline">list</code> is any list in which percent
and permille symbols are expected</p></li><li><p><code class="inline">options</code> is a keyword list of options</p></li></ul><h2 id="resolve_per/2-options" class="section-heading">
<a href="#resolve_per/2-options" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Options</span>
</h2>
<ul><li><code class="inline">:locale</code> is any valid locale returned by <a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.html#known_locale_names/1"><code class="inline">Cldr.known_locale_names/1</code></a>
or a <a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.LanguageTag.html"><code class="inline">Cldr.LanguageTag</code></a> struct returned by <a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.Locale.html#new!/2"><code class="inline">Cldr.Locale.new!/2</code></a>
The default is <code class="inline">options[:backend].get_locale()</code></li></ul><h2 id="resolve_per/2-returns" class="section-heading">
<a href="#resolve_per/2-returns" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Returns</span>
</h2>
<ul><li><p>An <code class="inline">:percent</code> or <code class="inline">permille</code> or</p></li><li><p><code class="inline">{:error, {exception, message}}</code></p></li></ul><h2 id="resolve_per/2-examples" class="section-heading">
<a href="#resolve_per/2-examples" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Examples</span>
</h2>
<pre><code class="makeup elixir" translate="no"><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">resolve_per</span><span class="w"> </span><span class="s">&quot;11%&quot;</span><span class="w">
</span><span class="p" data-group-id="8008560960-1">[</span><span class="s">&quot;11&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">:percent</span><span class="p" data-group-id="8008560960-1">]</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">resolve_per</span><span class="w"> </span><span class="s">&quot;% of linguists&quot;</span><span class="w">
</span><span class="p" data-group-id="8008560960-2">[</span><span class="ss">:percent</span><span class="p">,</span><span class="w"> </span><span class="s">&quot; of linguists&quot;</span><span class="p" data-group-id="8008560960-2">]</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">resolve_per</span><span class="w"> </span><span class="s">&quot;% of linguists %&quot;</span><span class="w">
</span><span class="p" data-group-id="8008560960-3">[</span><span class="ss">:percent</span><span class="p">,</span><span class="w"> </span><span class="s">&quot; of linguists &quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">:percent</span><span class="p" data-group-id="8008560960-3">]</span></code></pre>
</section>
</section>
<section class="detail" id="resolve_pers/2">
<span id="resolve_pers/1"></span>
<div class="detail-header">
<a href="#resolve_pers/2" class="detail-link" title="Link to this function">
<i class="ri-link-m" aria-hidden="true"></i>
<span class="sr-only">Link to this function</span>
</a>
<h1 class="signature" translate="no">resolve_pers(list, options \\ [])</h1>
<a href="https://github.com/plausible/analytics/blob/main/lib/plausible/cldr.ex#L1" class="icon-action" rel="help" title="View Source">
<i class="ri-code-s-slash-line" aria-hidden="true"></i>
<span class="sr-only">View Source</span>
</a>
<span class="note">(since 2.22.0)</span>
</div>
<section class="docstring">
<div class="specs">
<pre translate="no"><span class="attribute">@spec</span> resolve_pers([<a href="https://hexdocs.pm/elixir/String.html#t:t/0">String.t</a>(), ...], <a href="https://hexdocs.pm/elixir/Keyword.html#t:t/0">Keyword.t</a>()) :: [
<a href="https://hexdocs.pm/ex_cldr_numbers/2.32.3/Cldr.Number.Parser.html#t:per/0">Cldr.Number.Parser.per</a>() | <a href="https://hexdocs.pm/elixir/String.html#t:t/0">String.t</a>()
]</pre>
</div>
<p>Resolve and tokenize percent and permille
sybols from strings within a list.</p><p>Percent and permille symbols can be identified
at the beginning and/or the end of a string.</p><h2 id="resolve_pers/2-arguments" class="section-heading">
<a href="#resolve_pers/2-arguments" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Arguments</span>
</h2>
<ul><li><p><code class="inline">list</code> is any list in which percent and
permille symbols are expected</p></li><li><p><code class="inline">options</code> is a keyword list of options</p></li></ul><h2 id="resolve_pers/2-options" class="section-heading">
<a href="#resolve_pers/2-options" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Options</span>
</h2>
<ul><li><code class="inline">:locale</code> is any valid locale returned by <a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.html#known_locale_names/1"><code class="inline">Cldr.known_locale_names/1</code></a>
or a <code class="inline">t:Cldr.LanguageTag</code> struct returned by <a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.Locale.html#new!/2"><code class="inline">Cldr.Locale.new!/2</code></a>
The default is <code class="inline">options[:backend].get_locale()</code></li></ul><h2 id="resolve_pers/2-examples" class="section-heading">
<a href="#resolve_pers/2-examples" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Examples</span>
</h2>
<pre><code class="makeup elixir" translate="no"><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">scan</span><span class="p" data-group-id="9007513507-1">(</span><span class="s">&quot;100%&quot;</span><span class="p" data-group-id="9007513507-1">)</span><span class="w">
</span><span class="gp unselectable">...&gt; </span><span class="o">|&gt;</span><span class="w"> </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">resolve_pers</span><span class="p" data-group-id="9007513507-2">(</span><span class="p" data-group-id="9007513507-2">)</span><span class="w">
</span><span class="p" data-group-id="9007513507-3">[</span><span class="mi">100</span><span class="p">,</span><span class="w"> </span><span class="ss">:percent</span><span class="p" data-group-id="9007513507-3">]</span></code></pre>
</section>
</section>
<section class="detail" id="scan/2">
<span id="scan/1"></span>
<div class="detail-header">
<a href="#scan/2" class="detail-link" title="Link to this function">
<i class="ri-link-m" aria-hidden="true"></i>
<span class="sr-only">Link to this function</span>
</a>
<h1 class="signature" translate="no">scan(string, options \\ [])</h1>
<a href="https://github.com/plausible/analytics/blob/main/lib/plausible/cldr.ex#L1" class="icon-action" rel="help" title="View Source">
<i class="ri-code-s-slash-line" aria-hidden="true"></i>
<span class="sr-only">View Source</span>
</a>
</div>
<section class="docstring">
<p>Scans a string locale-aware manner and returns
a list of strings and numbers.</p><h2 id="scan/2-arguments" class="section-heading">
<a href="#scan/2-arguments" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Arguments</span>
</h2>
<ul><li><p><code class="inline">string</code> is any <code class="inline">String.t</code></p></li><li><p><code class="inline">options</code> is a keyword list of options</p></li></ul><h2 id="scan/2-options" class="section-heading">
<a href="#scan/2-options" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Options</span>
</h2>
<ul><li><p><code class="inline">:number</code> is one of <code class="inline">:integer</code>, <code class="inline">:float</code>,
<code class="inline">:decimal</code> or <code class="inline">nil</code>. The default is <code class="inline">nil</code>
meaning that the type auto-detected as either
an <code class="inline">integer</code> or a <code class="inline">float</code>.</p></li><li><p><code class="inline">:locale</code> is any locale returned by <a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.html#known_locale_names/1"><code class="inline">Cldr.known_locale_names/1</code></a>
or a <code class="inline">Cldr.LanguageTag.t</code>. The default is <a href="Plausible.Cldr.html#get_locale/0"><code class="inline">Plausible.Cldr.get_locale/0</code></a>.</p></li></ul><h2 id="scan/2-returns" class="section-heading">
<a href="#scan/2-returns" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Returns</span>
</h2>
<ul><li>A list of strings and numbers</li></ul><h2 id="scan/2-notes" class="section-heading">
<a href="#scan/2-notes" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Notes</span>
</h2>
<p>Number parsing is performed by <a href="https://hexdocs.pm/ex_cldr_numbers/2.32.3/Cldr.Number.Parser.html#parse/2"><code class="inline">Cldr.Number.Parser.parse/2</code></a>
and any options provided are passed to that function.</p><h2 id="scan/2-examples" class="section-heading">
<a href="#scan/2-examples" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Examples</span>
</h2>
<pre><code class="makeup elixir" translate="no"><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">scan</span><span class="p" data-group-id="3786876749-1">(</span><span class="s">&quot;£1_000_000.34&quot;</span><span class="p" data-group-id="3786876749-1">)</span><span class="w">
</span><span class="p" data-group-id="3786876749-2">[</span><span class="s">&quot;£&quot;</span><span class="p">,</span><span class="w"> </span><span class="mf">1000000.34</span><span class="p" data-group-id="3786876749-2">]</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">scan</span><span class="p" data-group-id="3786876749-3">(</span><span class="s">&quot;I want £1_000_000 dollars&quot;</span><span class="p" data-group-id="3786876749-3">)</span><span class="w">
</span><span class="p" data-group-id="3786876749-4">[</span><span class="s">&quot;I want £&quot;</span><span class="p">,</span><span class="w"> </span><span class="mi">1000000</span><span class="p">,</span><span class="w"> </span><span class="s">&quot; dollars&quot;</span><span class="p" data-group-id="3786876749-4">]</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">scan</span><span class="p" data-group-id="3786876749-5">(</span><span class="s">&quot;The prize is 23&quot;</span><span class="p" data-group-id="3786876749-5">)</span><span class="w">
</span><span class="p" data-group-id="3786876749-6">[</span><span class="s">&quot;The prize is &quot;</span><span class="p">,</span><span class="w"> </span><span class="mi">23</span><span class="p" data-group-id="3786876749-6">]</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">scan</span><span class="p" data-group-id="3786876749-7">(</span><span class="s">&quot;The lottery number is 23 for the next draw&quot;</span><span class="p" data-group-id="3786876749-7">)</span><span class="w">
</span><span class="p" data-group-id="3786876749-8">[</span><span class="s">&quot;The lottery number is &quot;</span><span class="p">,</span><span class="w"> </span><span class="mi">23</span><span class="p">,</span><span class="w"> </span><span class="s">&quot; for the next draw&quot;</span><span class="p" data-group-id="3786876749-8">]</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">scan</span><span class="p" data-group-id="3786876749-9">(</span><span class="s">&quot;The loss is -1.000 euros&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">locale</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;de&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">number</span><span class="p">:</span><span class="w"> </span><span class="ss">:integer</span><span class="p" data-group-id="3786876749-9">)</span><span class="w">
</span><span class="p" data-group-id="3786876749-10">[</span><span class="s">&quot;The loss is &quot;</span><span class="p">,</span><span class="w"> </span><span class="o">-</span><span class="mi">1000</span><span class="p">,</span><span class="w"> </span><span class="s">&quot; euros&quot;</span><span class="p" data-group-id="3786876749-10">]</span></code></pre>
</section>
</section>
<section class="detail" id="to_approx_string/2">
<span id="to_approx_string/1"></span>
<div class="detail-header">
<a href="#to_approx_string/2" class="detail-link" title="Link to this function">
<i class="ri-link-m" aria-hidden="true"></i>
<span class="sr-only">Link to this function</span>
</a>
<h1 class="signature" translate="no">to_approx_string(number, options \\ [])</h1>
<a href="https://github.com/plausible/analytics/blob/main/lib/plausible/cldr.ex#L1" class="icon-action" rel="help" title="View Source">
<i class="ri-code-s-slash-line" aria-hidden="true"></i>
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</a>
</div>
<section class="docstring">
<div class="specs">
<pre translate="no"><span class="attribute">@spec</span> to_approx_string(<a href="https://hexdocs.pm/elixir/typespecs.html#built-in-types">number</a>() | <a href="https://hexdocs.pm/decimal/2.1.1/Decimal.html#t:t/0">Decimal.t</a>(), <a href="https://hexdocs.pm/elixir/Keyword.html#t:t/0">Keyword.t</a>() | <a href="https://hexdocs.pm/elixir/Keyword.html#t:t/0">Keyword.t</a>() | <a href="https://hexdocs.pm/elixir/typespecs.html#basic-types">map</a>()) ::
{:ok, <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>
</div>
<p>Formats a number and applies the <code class="inline">:approximately</code> format for
a locale and number system.</p><h2 id="to_approx_string/2-arguments" class="section-heading">
<a href="#to_approx_string/2-arguments" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Arguments</span>
</h2>
<ul><li><p><code class="inline">number</code> is an integer, float or Decimal to be formatted</p></li><li><p><code class="inline">options</code> is a keyword list defining how the number is to be formatted.
See <a href="https://hexdocs.pm/ex_cldr_numbers/2.32.3/Cldr.Number.html#to_string/3"><code class="inline">Cldr.Number.to_string/3</code></a> for a description of the available
options.</p></li></ul><h2 id="to_approx_string/2-example" class="section-heading">
<a href="#to_approx_string/2-example" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Example</span>
</h2>
<pre><code class="makeup elixir" translate="no"><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_approx_string</span><span class="w"> </span><span class="mi">1234</span><span class="w">
</span><span class="p" data-group-id="4663781095-1">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;~1,234&quot;</span><span class="p" data-group-id="4663781095-1">}</span></code></pre>
</section>
</section>
<section class="detail" id="to_at_least_string/2">
<span id="to_at_least_string/1"></span>
<div class="detail-header">
<a href="#to_at_least_string/2" class="detail-link" title="Link to this function">
<i class="ri-link-m" aria-hidden="true"></i>
<span class="sr-only">Link to this function</span>
</a>
<h1 class="signature" translate="no">to_at_least_string(number, options \\ [])</h1>
<a href="https://github.com/plausible/analytics/blob/main/lib/plausible/cldr.ex#L1" class="icon-action" rel="help" title="View Source">
<i class="ri-code-s-slash-line" aria-hidden="true"></i>
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</a>
</div>
<section class="docstring">
<div class="specs">
<pre translate="no"><span class="attribute">@spec</span> to_at_least_string(<a href="https://hexdocs.pm/elixir/typespecs.html#built-in-types">number</a>() | <a href="https://hexdocs.pm/decimal/2.1.1/Decimal.html#t:t/0">Decimal.t</a>(), <a href="https://hexdocs.pm/elixir/Keyword.html#t:t/0">Keyword.t</a>() | <a href="https://hexdocs.pm/elixir/Keyword.html#t:t/0">Keyword.t</a>() | <a href="https://hexdocs.pm/elixir/typespecs.html#basic-types">map</a>()) ::
{:ok, <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>
</div>
<p>Formats a number and applies the <code class="inline">:at_least</code> format for
a locale and number system.</p><h2 id="to_at_least_string/2-arguments" class="section-heading">
<a href="#to_at_least_string/2-arguments" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Arguments</span>
</h2>
<ul><li><p><code class="inline">number</code> is an integer, float or Decimal to be formatted</p></li><li><p><code class="inline">options</code> is a keyword list defining how the number is to be formatted.
See <a href="#to_string/2"><code class="inline">Plausible.Cldr.Number.to_string/2</code></a> for a description of the available
options.</p></li></ul><h2 id="to_at_least_string/2-example" class="section-heading">
<a href="#to_at_least_string/2-example" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Example</span>
</h2>
<pre><code class="makeup elixir" translate="no"><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_at_least_string</span><span class="w"> </span><span class="mi">1234</span><span class="w">
</span><span class="p" data-group-id="0885008669-1">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;1,234+&quot;</span><span class="p" data-group-id="0885008669-1">}</span></code></pre>
</section>
</section>
<section class="detail" id="to_at_most_string/2">
<span id="to_at_most_string/1"></span>
<div class="detail-header">
<a href="#to_at_most_string/2" class="detail-link" title="Link to this function">
<i class="ri-link-m" aria-hidden="true"></i>
<span class="sr-only">Link to this function</span>
</a>
<h1 class="signature" translate="no">to_at_most_string(number, options \\ [])</h1>
<a href="https://github.com/plausible/analytics/blob/main/lib/plausible/cldr.ex#L1" class="icon-action" rel="help" title="View Source">
<i class="ri-code-s-slash-line" aria-hidden="true"></i>
<span class="sr-only">View Source</span>
</a>
</div>
<section class="docstring">
<div class="specs">
<pre translate="no"><span class="attribute">@spec</span> to_at_most_string(<a href="https://hexdocs.pm/elixir/typespecs.html#built-in-types">number</a>() | <a href="https://hexdocs.pm/decimal/2.1.1/Decimal.html#t:t/0">Decimal.t</a>(), <a href="https://hexdocs.pm/elixir/Keyword.html#t:t/0">Keyword.t</a>() | <a href="https://hexdocs.pm/elixir/Keyword.html#t:t/0">Keyword.t</a>() | <a href="https://hexdocs.pm/elixir/typespecs.html#basic-types">map</a>()) ::
{:ok, <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>
</div>
<p>Formats a number and applies the <code class="inline">:at_most</code> format for
a locale and number system.</p><h2 id="to_at_most_string/2-arguments" class="section-heading">
<a href="#to_at_most_string/2-arguments" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Arguments</span>
</h2>
<ul><li><p><code class="inline">number</code> is an integer, float or Decimal to be formatted</p></li><li><p><code class="inline">options</code> is a keyword list defining how the number is to be formatted.
See <a href="https://hexdocs.pm/ex_cldr_numbers/2.32.3/Cldr.Number.html#to_string/3"><code class="inline">Cldr.Number.to_string/3</code></a> for a description of the available
options.</p></li></ul><h2 id="to_at_most_string/2-example" class="section-heading">
<a href="#to_at_most_string/2-example" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Example</span>
</h2>
<pre><code class="makeup elixir" translate="no"><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_at_most_string</span><span class="w"> </span><span class="mi">1234</span><span class="w">
</span><span class="p" data-group-id="8824330523-1">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;≤1,234&quot;</span><span class="p" data-group-id="8824330523-1">}</span></code></pre>
</section>
</section>
<section class="detail" id="to_range_string/2">
<span id="to_range_string/1"></span>
<div class="detail-header">
<a href="#to_range_string/2" class="detail-link" title="Link to this function">
<i class="ri-link-m" aria-hidden="true"></i>
<span class="sr-only">Link to this function</span>
</a>
<h1 class="signature" translate="no">to_range_string(range, options \\ [])</h1>
<a href="https://github.com/plausible/analytics/blob/main/lib/plausible/cldr.ex#L1" class="icon-action" rel="help" title="View Source">
<i class="ri-code-s-slash-line" aria-hidden="true"></i>
<span class="sr-only">View Source</span>
</a>
</div>
<section class="docstring">
<div class="specs">
<pre translate="no"><span class="attribute">@spec</span> to_range_string(<a href="https://hexdocs.pm/elixir/Range.html#t:t/0">Range.t</a>(), <a href="https://hexdocs.pm/elixir/Keyword.html#t:t/0">Keyword.t</a>() | <a href="https://hexdocs.pm/elixir/Keyword.html#t:t/0">Keyword.t</a>() | <a href="https://hexdocs.pm/elixir/typespecs.html#basic-types">map</a>()) ::
{:ok, <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>
</div>
<p>Formats the first and last numbers of a range and applies
the <code class="inline">:range</code> format for a locale and number system.</p><h2 id="to_range_string/2-arguments" class="section-heading">
<a href="#to_range_string/2-arguments" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Arguments</span>
</h2>
<ul><li><p><code class="inline">number</code> is an integer, float or Decimal to be formatted</p></li><li><p><code class="inline">options</code> is a keyword list defining how the number is to be formatted.
See <a href="https://hexdocs.pm/ex_cldr_numbers/2.32.3/Cldr.Number.html#to_string/3"><code class="inline">Cldr.Number.to_string/3</code></a> for a description of the available
options.</p></li></ul><h2 id="to_range_string/2-example" class="section-heading">
<a href="#to_range_string/2-example" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Example</span>
</h2>
<pre><code class="makeup elixir" translate="no"><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_range_string</span><span class="w"> </span><span class="mi">1234</span><span class="o">..</span><span class="mi">5678</span><span class="w">
</span><span class="p" data-group-id="9612157536-1">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;1,2345,678&quot;</span><span class="p" data-group-id="9612157536-1">}</span></code></pre>
</section>
</section>
<section class="detail" id="to_string/2">
<span id="to_string/1"></span>
<div class="detail-header">
<a href="#to_string/2" class="detail-link" title="Link to this function">
<i class="ri-link-m" aria-hidden="true"></i>
<span class="sr-only">Link to this function</span>
</a>
<h1 class="signature" translate="no">to_string(number, options \\ default_options())</h1>
<a href="https://github.com/plausible/analytics/blob/main/lib/plausible/cldr.ex#L1" class="icon-action" rel="help" title="View Source">
<i class="ri-code-s-slash-line" aria-hidden="true"></i>
<span class="sr-only">View Source</span>
</a>
</div>
<section class="docstring">
<div class="specs">
<pre translate="no"><span class="attribute">@spec</span> to_string(<a href="https://hexdocs.pm/elixir/typespecs.html#built-in-types">number</a>() | <a href="https://hexdocs.pm/decimal/2.1.1/Decimal.html#t:t/0">Decimal.t</a>(), <a href="https://hexdocs.pm/elixir/Keyword.html#t:t/0">Keyword.t</a>() | <a href="https://hexdocs.pm/elixir/typespecs.html#basic-types">map</a>()) ::
{:ok, <a href="https://hexdocs.pm/elixir/String.html#t:t/0">String.t</a>()} | {:error, {<a href="https://hexdocs.pm/elixir/typespecs.html#basic-types">atom</a>(), <a href="https://hexdocs.pm/elixir/String.html#t:t/0">String.t</a>()}}</pre>
</div>
<p>Returns a number formatted into a string according to a format pattern and options.</p><h2 id="to_string/2-arguments" class="section-heading">
<a href="#to_string/2-arguments" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Arguments</span>
</h2>
<ul><li><p><code class="inline">number</code> is an integer, float or Decimal to be formatted</p></li><li><p><code class="inline">options</code> is a keyword list defining how the number is to be formatted.</p></li></ul><h2 id="to_string/2-options" class="section-heading">
<a href="#to_string/2-options" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Options</span>
</h2>
<ul><li><p><code class="inline">format</code>: the format style or a format string defining how the number is
formatted. See <a href="https://hexdocs.pm/ex_cldr_numbers/2.32.3/Cldr.Number.Format.html"><code class="inline">Cldr.Number.Format</code></a> for how format strings can be constructed.
See <a href="https://hexdocs.pm/ex_cldr_numbers/2.32.3/Cldr.Number.Format.html#format_styles_for/3"><code class="inline">Cldr.Number.Format.format_styles_for/3</code></a> to return available format styles
for a locale. The default <code class="inline">format</code> is <code class="inline">:standard</code>.</p></li><li><p>If <code class="inline">:format</code> is set to <code class="inline">:long</code> or <code class="inline">:short</code> then the formatting depends on
whether <code class="inline">:currency</code> is specified. If not specified then the number is
formatted as <code class="inline">:decimal_long</code> or <code class="inline">:decimal_short</code>. If <code class="inline">:currency</code> is
specified the number is formatted as <code class="inline">:currency_long</code> or
<code class="inline">:currency_short</code> and <code class="inline">:fractional_digits</code> is set to 0 as a default.</p></li><li><p><code class="inline">:format</code> may also be a format defined by CLDR's Rules Based Number
Formats (RBNF). Further information is found in the module <a href="https://hexdocs.pm/ex_cldr_numbers/2.32.3/Cldr.Rbnf.html"><code class="inline">Cldr.Rbnf</code></a>.
The most commonly used formats in this category are to spell out the
number in a the locales language. The applicable formats are <code class="inline">:spellout</code>,
<code class="inline">:spellout_year</code>, <code class="inline">:ordinal</code>. A number can also be formatted as roman
numbers by using the format <code class="inline">:roman</code> or <code class="inline">:roman_lower</code>.</p></li><li><p><code class="inline">currency</code>: is the currency for which the number is formatted. For
available currencies see <a href="https://hexdocs.pm/ex_cldr_currencies/2.15.1/Cldr.Currency.html#known_currencies/0"><code class="inline">Cldr.Currency.known_currencies/0</code></a>. This option
is required if <code class="inline">:format</code> is set to <code class="inline">:currency</code>. If <code class="inline">currency</code> is set
and no <code class="inline">:format</code> is set, <code class="inline">:format</code> will be set to <code class="inline">:currency</code> as well.</p></li><li><p><code class="inline">currency_symbol</code>: Allows overriding a currency symbol. The alternatives
are:</p><ul><li><code class="inline">:iso</code> the ISO currency code will be used instead of the default
currency symbol.</li><li><code class="inline">:narrow</code> uses the narrow symbol defined for the locale. The same
narrow symbol can be defined for more than one currency and therefore this
should be used with care. If no narrow symbol is defined, the standard
symbol is used.</li><li><code class="inline">:symbol</code> uses the standard symbol defined in CLDR. A symbol is unique
for each currency and can be safely used.</li><li>&quot;string&quot; uses <code class="inline">string</code> as the currency symbol</li><li><code class="inline">:standard</code> (the default and recommended) uses the CLDR-defined symbol
based upon the currency format for the locale.</li></ul></li><li><p><code class="inline">:cash</code>: a boolean which indicates whether a number being formatted as a
<code class="inline">:currency</code> is to be considered a cash value or not. Currencies can be
rounded differently depending on whether <code class="inline">:cash</code> is <code class="inline">true</code> or <code class="inline">false</code>.
*This option is deprecated in favour of <code class="inline">currency_digits: :cash</code>.</p></li><li><p><code class="inline">:currency_digits</code> indicates which of the rounding and digits should be
used. The options are <code class="inline">:accounting</code> which is the default, <code class="inline">:cash</code> or
<code class="inline">:iso</code></p></li><li><p><code class="inline">:rounding_mode</code>: determines how a number is rounded to meet the precision
of the format requested. The available rounding modes are <code class="inline">:down</code>,
:half_up, :half_even, :ceiling, :floor, :half_down, :up. The default is
<code class="inline">:half_even</code>.</p></li><li><p><code class="inline">:number_system</code>: determines which of the number systems for a locale
should be used to define the separators and digits for the formatted
number. If <code class="inline">number_system</code> is an <code class="inline">atom</code> then <code class="inline">number_system</code> is
interpreted as a number system. If the <code class="inline">:number_system</code> is
<code class="inline">binary</code> then it is interpreted as a number system name. See
<a href="https://hexdocs.pm/ex_cldr_numbers/2.32.3/Cldr.Number.System.html#number_system_names_for/2"><code class="inline">Cldr.Number.System.number_system_names_for/2</code></a>. The default is <code class="inline">:default</code>.</p></li><li><p><code class="inline">:locale</code>: determines the locale in which the number is formatted. See
<a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.html#known_locale_names/0"><code class="inline">Cldr.known_locale_names/0</code></a>. The default is<a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.html#get_locale/0"><code class="inline">Cldr.get_locale/0</code></a> which is the
locale currently in affect for this <a href="https://hexdocs.pm/elixir/Process.html"><code class="inline">Process</code></a> and which is set by
<a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.html#put_locale/1"><code class="inline">Cldr.put_locale/1</code></a>.</p></li><li><p>If <code class="inline">:fractional_digits</code> is set to a positive integer value then the number
will be rounded to that number of digits and displayed accordingly - overriding
settings that would be applied by default. For example, currencies have
fractional digits defined reflecting each currencies minor unit. Setting
<code class="inline">:fractional_digits</code> will override that setting.</p></li><li><p>If <code class="inline">:maximum_integer_digits</code> is set to a positive integer value then the
number is left truncated before formatting. For example if the number <code class="inline">1234</code>
is formatted with the option <code class="inline">maximum_integer_digits: 2</code>, the number is
truncated to <code class="inline">34</code> and formatted.</p></li><li><p>If <code class="inline">:round_nearest</code> is set to a positive integer value then the number
will be rounded to nearest increment of that value - overriding
settings that would be applied by default.</p></li><li><p><code class="inline">:minimum_grouping_digits</code> overrides the CLDR definition of minimum grouping
digits. For example in the locale <code class="inline">es</code> the number <code class="inline">1234</code> is formatted by default
as <code class="inline">1345</code> because the locale defines the <code class="inline">minimium_grouping_digits</code> as <code class="inline">2</code>. If
<code class="inline">minimum_grouping_digits: 1</code> is set as an option the number is formatting as
<code class="inline">1.345</code>. The <code class="inline">:minimum_grouping_digits</code> is added to the grouping defined by
the number format. If the sum of these two digits is greater than the number
of digits in the integer (or fractional) part of the number then no grouping
is performed.</p></li><li><p><code class="inline">:wrapper</code> is a 2-arity function that will be called for each number component
with parameters <code class="inline">string</code> and <code class="inline">tag</code> where <code class="inline">tag</code> is one of <code class="inline">:number</code>,
<code class="inline">:currency_symbol</code>, <code class="inline">:currency_space</code>, <code class="inline">:literal</code>, <code class="inline">:quote</code>, <code class="inline">:percent</code>,
<code class="inline">:permille</code>, <code class="inline">:minus</code> or <code class="inline">:plus</code>. The function must return a string. The
function can be used to wrap format elements in HTML or other tags.</p></li></ul><h2 id="to_string/2-locale-extensions-affecting-formatting" class="section-heading">
<a href="#to_string/2-locale-extensions-affecting-formatting" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Locale extensions affecting formatting</span>
</h2>
<p>A locale identifier can specify options that affect number formatting.
These options are:</p><ul><li><code class="inline">nu</code>: defines the number system to be used if none is specified by the <code class="inline">:number_system</code>
option to <a href="#to_string/2"><code class="inline">to_string/2</code></a></li></ul><p>This key is part of the <a href="https://unicode.org/reports/tr35/#u_Extension">u extension</a> and
that document should be consulted for details on how to construct a locale identifier with these
extensions.</p><h2 id="to_string/2-wrapping-format-elements" class="section-heading">
<a href="#to_string/2-wrapping-format-elements" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Wrapping format elements</span>
</h2>
<p>Wrapping elements is particularly useful when formatting a number with a
currency symbol and the requirement is to have different HTML formatting
applied to the symbol than the number. For example:</p><pre><code class="makeup elixir" translate="no"><span class="gp unselectable">iex&gt; </span><span class="nc">Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="p" data-group-id="0107942450-1">(</span><span class="mi">100</span><span class="p">,</span><span class="w"> </span><span class="ss">format</span><span class="p">:</span><span class="w"> </span><span class="ss">:currency</span><span class="p">,</span><span class="w"> </span><span class="ss">currency</span><span class="p">:</span><span class="w"> </span><span class="ss">:USD</span><span class="p">,</span><span class="w"> </span><span class="ss">wrapper</span><span class="p">:</span><span class="w"> </span><span class="k" data-group-id="0107942450-2">fn</span><span class="w">
</span><span class="gp unselectable">...&gt; </span><span class="w"> </span><span class="n">string</span><span class="p">,</span><span class="w"> </span><span class="ss">:currency_symbol</span><span class="w"> </span><span class="o">-&gt;</span><span class="w"> </span><span class="s">&quot;&lt;span class=</span><span class="se">\&quot;</span><span class="s">symbol</span><span class="se">\&quot;</span><span class="s">&gt;&quot;</span><span class="w"> </span><span class="o">&lt;&gt;</span><span class="w"> </span><span class="n">string</span><span class="w"> </span><span class="o">&lt;&gt;</span><span class="w"> </span><span class="s">&quot;&lt;/span&gt;&quot;</span><span class="w">
</span><span class="gp unselectable">...&gt; </span><span class="w"> </span><span class="n">string</span><span class="p">,</span><span class="w"> </span><span class="ss">:number</span><span class="w"> </span><span class="o">-&gt;</span><span class="w"> </span><span class="s">&quot;&lt;span class=</span><span class="se">\&quot;</span><span class="s">number</span><span class="se">\&quot;</span><span class="s">&gt;&quot;</span><span class="w"> </span><span class="o">&lt;&gt;</span><span class="w"> </span><span class="n">string</span><span class="w"> </span><span class="o">&lt;&gt;</span><span class="w"> </span><span class="s">&quot;&lt;/span&gt;&quot;</span><span class="w">
</span><span class="gp unselectable">...&gt; </span><span class="w"> </span><span class="n">string</span><span class="p">,</span><span class="w"> </span><span class="ss">:currency_space</span><span class="w"> </span><span class="o">-&gt;</span><span class="w"> </span><span class="s">&quot;&lt;span&gt;&quot;</span><span class="w"> </span><span class="o">&lt;&gt;</span><span class="w"> </span><span class="n">string</span><span class="w"> </span><span class="o">&lt;&gt;</span><span class="w"> </span><span class="s">&quot;&lt;/span&gt;&quot;</span><span class="w">
</span><span class="gp unselectable">...&gt; </span><span class="w"> </span><span class="n">string</span><span class="p">,</span><span class="w"> </span><span class="c">_other</span><span class="w"> </span><span class="o">-&gt;</span><span class="w"> </span><span class="n">string</span><span class="w">
</span><span class="gp unselectable">...&gt; </span><span class="k" data-group-id="0107942450-2">end</span><span class="p" data-group-id="0107942450-1">)</span><span class="w">
</span><span class="p" data-group-id="0107942450-3">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;&lt;span class=</span><span class="se">\&quot;</span><span class="s">symbol</span><span class="se">\&quot;</span><span class="s">&gt;$&lt;/span&gt;&lt;span class=</span><span class="se">\&quot;</span><span class="s">number</span><span class="se">\&quot;</span><span class="s">&gt;100.00&lt;/span&gt;&quot;</span><span class="p" data-group-id="0107942450-3">}</span></code></pre><p>It is also possible and recommended to use the <a href="https://hexdocs.pm/phoenix_html/3.3.3/Phoenix.HTML.Tag.html#content_tag/3"><code class="inline">Phoenix.HTML.Tag.content_tag/3</code></a>
function if wrapping HTML tags since these will ensure HTML entities are
correctly encoded. For example:</p><pre><code class="makeup elixir" translate="no"><span class="gp unselectable">iex&gt; </span><span class="nc">Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="p" data-group-id="1181091080-1">(</span><span class="mi">100</span><span class="p">,</span><span class="w"> </span><span class="ss">format</span><span class="p">:</span><span class="w"> </span><span class="ss">:currency</span><span class="p">,</span><span class="w"> </span><span class="ss">currency</span><span class="p">:</span><span class="w"> </span><span class="ss">:USD</span><span class="p">,</span><span class="w"> </span><span class="ss">wrapper</span><span class="p">:</span><span class="w"> </span><span class="k" data-group-id="1181091080-2">fn</span><span class="w">
</span><span class="gp unselectable">...&gt; </span><span class="w"> </span><span class="n">string</span><span class="p">,</span><span class="w"> </span><span class="ss">:currency_symbol</span><span class="w"> </span><span class="o">-&gt;</span><span class="w"> </span><span class="nc">Phoenix.HTML.Tag</span><span class="o">.</span><span class="n">content_tag</span><span class="p" data-group-id="1181091080-3">(</span><span class="ss">:span</span><span class="p">,</span><span class="w"> </span><span class="n">string</span><span class="p">,</span><span class="w"> </span><span class="ss">class</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;symbol&quot;</span><span class="p" data-group-id="1181091080-3">)</span><span class="w">
</span><span class="gp unselectable">...&gt; </span><span class="w"> </span><span class="n">string</span><span class="p">,</span><span class="w"> </span><span class="ss">:number</span><span class="w"> </span><span class="o">-&gt;</span><span class="w"> </span><span class="nc">Phoenix.HTML.Tag</span><span class="o">.</span><span class="n">content_tag</span><span class="p" data-group-id="1181091080-4">(</span><span class="ss">:span</span><span class="p">,</span><span class="w"> </span><span class="n">string</span><span class="p">,</span><span class="w"> </span><span class="ss">class</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;number&quot;</span><span class="p" data-group-id="1181091080-4">)</span><span class="w">
</span><span class="gp unselectable">...&gt; </span><span class="w"> </span><span class="n">string</span><span class="p">,</span><span class="w"> </span><span class="ss">:currency_space</span><span class="w"> </span><span class="o">-&gt;</span><span class="w"> </span><span class="nc">Phoenix.HTML.Tag</span><span class="o">.</span><span class="n">content_tag</span><span class="p" data-group-id="1181091080-5">(</span><span class="ss">:span</span><span class="p">,</span><span class="w"> </span><span class="n">string</span><span class="p" data-group-id="1181091080-5">)</span><span class="w">
</span><span class="gp unselectable">...&gt; </span><span class="w"> </span><span class="n">string</span><span class="p">,</span><span class="w"> </span><span class="c">_other</span><span class="w"> </span><span class="o">-&gt;</span><span class="w"> </span><span class="n">string</span><span class="w">
</span><span class="gp unselectable">...&gt; </span><span class="k" data-group-id="1181091080-2">end</span><span class="p" data-group-id="1181091080-1">)</span><span class="w">
</span><span class="p" data-group-id="1181091080-6">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;&lt;span class=</span><span class="se">\&quot;</span><span class="s">symbol</span><span class="se">\&quot;</span><span class="s">&gt;$&lt;/span&gt;&lt;span class=</span><span class="se">\&quot;</span><span class="s">number</span><span class="se">\&quot;</span><span class="s">&gt;100.00&lt;/span&gt;&quot;</span><span class="p" data-group-id="1181091080-6">}</span></code></pre><p>When formatting a number the format is parsed into format elements that might include
a currency symbol, a literal string, inserted text between a currency symbol and the
currency amount, a percent sign, the number itself and several other elements. In
some cases it is helpful to be apply specific formatting to each element.
This can be achieved by specifying a <code class="inline">:wrapper</code> option. This option takes a 2-arity
function as an argument. For each element of the format the wrapper function is called
with two parameters: the format element as a string and an atom representing the
element type. The wrapper function is required to return a string that is then
inserted in the final formatted number.</p><h2 id="to_string/2-returns" class="section-heading">
<a href="#to_string/2-returns" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Returns</span>
</h2>
<ul><li><p><code class="inline">{:ok, string}</code> or</p></li><li><p><code class="inline">{:error, {exception, message}}</code></p></li></ul><h2 id="to_string/2-examples" class="section-heading">
<a href="#to_string/2-examples" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Examples</span>
</h2>
<pre><code class="makeup elixir" translate="no"><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="w"> </span><span class="mi">12345</span><span class="w">
</span><span class="p" data-group-id="8744969431-1">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;12,345&quot;</span><span class="p" data-group-id="8744969431-1">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="w"> </span><span class="mi">12345</span><span class="p">,</span><span class="w"> </span><span class="ss">locale</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;fr&quot;</span><span class="w">
</span><span class="p" data-group-id="8744969431-2">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;12345&quot;</span><span class="p" data-group-id="8744969431-2">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="w"> </span><span class="mf">1345.32</span><span class="p">,</span><span class="w"> </span><span class="ss">currency</span><span class="p">:</span><span class="w"> </span><span class="ss">:EUR</span><span class="p">,</span><span class="w"> </span><span class="ss">locale</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;es&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">minimum_grouping_digits</span><span class="p">:</span><span class="w"> </span><span class="mi">1</span><span class="w">
</span><span class="p" data-group-id="8744969431-3">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;1.345,32 &quot;</span><span class="p" data-group-id="8744969431-3">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="w"> </span><span class="mf">1345.32</span><span class="p">,</span><span class="w"> </span><span class="ss">currency</span><span class="p">:</span><span class="w"> </span><span class="ss">:EUR</span><span class="p">,</span><span class="w"> </span><span class="ss">locale</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;es&quot;</span><span class="w">
</span><span class="p" data-group-id="8744969431-4">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;1345,32 &quot;</span><span class="p" data-group-id="8744969431-4">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="w"> </span><span class="mi">12345</span><span class="p">,</span><span class="w"> </span><span class="ss">locale</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;fr&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">currency</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;USD&quot;</span><span class="w">
</span><span class="p" data-group-id="8744969431-5">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;12345,00 $US&quot;</span><span class="p" data-group-id="8744969431-5">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="w"> </span><span class="mi">12345</span><span class="p">,</span><span class="w"> </span><span class="ss">format</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;#E0&quot;</span><span class="w">
</span><span class="p" data-group-id="8744969431-6">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;1.2345E4&quot;</span><span class="p" data-group-id="8744969431-6">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="w"> </span><span class="mi">12345</span><span class="p">,</span><span class="w"> </span><span class="ss">format</span><span class="p">:</span><span class="w"> </span><span class="ss">:accounting</span><span class="p">,</span><span class="w"> </span><span class="ss">currency</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;THB&quot;</span><span class="w">
</span><span class="p" data-group-id="8744969431-7">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;THB 12,345.00&quot;</span><span class="p" data-group-id="8744969431-7">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="w"> </span><span class="o">-</span><span class="mi">12345</span><span class="p">,</span><span class="w"> </span><span class="ss">format</span><span class="p">:</span><span class="w"> </span><span class="ss">:accounting</span><span class="p">,</span><span class="w"> </span><span class="ss">currency</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;THB&quot;</span><span class="w">
</span><span class="p" data-group-id="8744969431-8">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;(THB 12,345.00)&quot;</span><span class="p" data-group-id="8744969431-8">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="w"> </span><span class="mi">12345</span><span class="p">,</span><span class="w"> </span><span class="ss">format</span><span class="p">:</span><span class="w"> </span><span class="ss">:accounting</span><span class="p">,</span><span class="w"> </span><span class="ss">currency</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;THB&quot;</span><span class="p">,</span><span class="w">
</span><span class="gp unselectable">...&gt; </span><span class="ss">locale</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;th&quot;</span><span class="w">
</span><span class="p" data-group-id="8744969431-9">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;฿12,345.00&quot;</span><span class="p" data-group-id="8744969431-9">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="w"> </span><span class="mi">12345</span><span class="p">,</span><span class="w"> </span><span class="ss">format</span><span class="p">:</span><span class="w"> </span><span class="ss">:accounting</span><span class="p">,</span><span class="w"> </span><span class="ss">currency</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;THB&quot;</span><span class="p">,</span><span class="w">
</span><span class="gp unselectable">...&gt; </span><span class="ss">locale</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;th&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">number_system</span><span class="p">:</span><span class="w"> </span><span class="ss">:native</span><span class="w">
</span><span class="p" data-group-id="8744969431-10">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;฿๑๒,๓๔๕.&quot;</span><span class="p" data-group-id="8744969431-10">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="w"> </span><span class="mf">1244.30</span><span class="p">,</span><span class="w"> </span><span class="ss">format</span><span class="p">:</span><span class="w"> </span><span class="ss">:long</span><span class="w">
</span><span class="p" data-group-id="8744969431-11">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;1 thousand&quot;</span><span class="p" data-group-id="8744969431-11">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="w"> </span><span class="mf">1244.30</span><span class="p">,</span><span class="w"> </span><span class="ss">format</span><span class="p">:</span><span class="w"> </span><span class="ss">:long</span><span class="p">,</span><span class="w"> </span><span class="ss">currency</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;USD&quot;</span><span class="w">
</span><span class="p" data-group-id="8744969431-12">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;1,244 US dollars&quot;</span><span class="p" data-group-id="8744969431-12">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="w"> </span><span class="mf">1244.30</span><span class="p">,</span><span class="w"> </span><span class="ss">format</span><span class="p">:</span><span class="w"> </span><span class="ss">:short</span><span class="w">
</span><span class="p" data-group-id="8744969431-13">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;1K&quot;</span><span class="p" data-group-id="8744969431-13">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="w"> </span><span class="mf">1244.30</span><span class="p">,</span><span class="w"> </span><span class="ss">format</span><span class="p">:</span><span class="w"> </span><span class="ss">:short</span><span class="p">,</span><span class="w"> </span><span class="ss">currency</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;EUR&quot;</span><span class="w">
</span><span class="p" data-group-id="8744969431-14">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;€1K&quot;</span><span class="p" data-group-id="8744969431-14">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="w"> </span><span class="mi">1234</span><span class="p">,</span><span class="w"> </span><span class="ss">format</span><span class="p">:</span><span class="w"> </span><span class="ss">:spellout</span><span class="w">
</span><span class="p" data-group-id="8744969431-15">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;one thousand two hundred thirty-four&quot;</span><span class="p" data-group-id="8744969431-15">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="w"> </span><span class="mi">1234</span><span class="p">,</span><span class="w"> </span><span class="ss">format</span><span class="p">:</span><span class="w"> </span><span class="ss">:spellout_verbose</span><span class="w">
</span><span class="p" data-group-id="8744969431-16">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;one thousand two hundred and thirty-four&quot;</span><span class="p" data-group-id="8744969431-16">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="w"> </span><span class="mi">1989</span><span class="p">,</span><span class="w"> </span><span class="ss">format</span><span class="p">:</span><span class="w"> </span><span class="ss">:spellout_year</span><span class="w">
</span><span class="p" data-group-id="8744969431-17">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;nineteen eighty-nine&quot;</span><span class="p" data-group-id="8744969431-17">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="w"> </span><span class="mi">123</span><span class="p">,</span><span class="w"> </span><span class="ss">format</span><span class="p">:</span><span class="w"> </span><span class="ss">:ordinal</span><span class="w">
</span><span class="p" data-group-id="8744969431-18">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;123rd&quot;</span><span class="p" data-group-id="8744969431-18">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="w"> </span><span class="mi">123</span><span class="p">,</span><span class="w"> </span><span class="ss">format</span><span class="p">:</span><span class="w"> </span><span class="ss">:roman</span><span class="w">
</span><span class="p" data-group-id="8744969431-19">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;CXXIII&quot;</span><span class="p" data-group-id="8744969431-19">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="w"> </span><span class="mi">123</span><span class="p">,</span><span class="w"> </span><span class="ss">locale</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;th-u-nu-thai&quot;</span><span class="w">
</span><span class="p" data-group-id="8744969431-20">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;๑๒๓&quot;</span><span class="p" data-group-id="8744969431-20">}</span></code></pre><h2 id="to_string/2-errors" class="section-heading">
<a href="#to_string/2-errors" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Errors</span>
</h2>
<p>An error tuple <code class="inline">{:error, reason}</code> will be returned if an error is detected.
The two most likely causes of an error return are:</p><ul><li>A format cannot be compiled. In this case the error tuple will look like:</li></ul><pre><code class="makeup elixir" translate="no"><span class="w"> </span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="p" data-group-id="8985373877-1">(</span><span class="mi">12345</span><span class="p">,</span><span class="w"> </span><span class="ss">format</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;0#&quot;</span><span class="p" data-group-id="8985373877-1">)</span><span class="w">
</span><span class="p" data-group-id="8985373877-2">{</span><span class="ss">:error</span><span class="p">,</span><span class="w"> </span><span class="p" data-group-id="8985373877-3">{</span><span class="nc">Cldr.FormatCompileError</span><span class="p">,</span><span class="w">
</span><span class="s">&quot;Decimal format compiler: syntax error before: </span><span class="se">\&quot;</span><span class="s">#</span><span class="se">\&quot;</span><span class="s">&quot;</span><span class="p" data-group-id="8985373877-3">}</span><span class="p" data-group-id="8985373877-2">}</span></code></pre><ul><li>The format style requested is not defined for the <code class="inline">locale</code> and
<code class="inline">number_system</code>. This happens typically when the number system is
<code class="inline">:algorithmic</code> rather than the more common <code class="inline">:numeric</code>. In this case the error
return looks like:</li></ul><pre><code class="makeup elixir" translate="no"><span class="w"> </span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string</span><span class="p" data-group-id="7323280605-1">(</span><span class="mi">1234</span><span class="p">,</span><span class="w"> </span><span class="ss">locale</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;he&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">number_system</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;hebr&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">format</span><span class="p">:</span><span class="w"> </span><span class="ss">:percent</span><span class="p" data-group-id="7323280605-1">)</span><span class="w">
</span><span class="p" data-group-id="7323280605-2">{</span><span class="ss">:error</span><span class="p">,</span><span class="w"> </span><span class="p" data-group-id="7323280605-3">{</span><span class="nc">Cldr.UnknownFormatError</span><span class="p">,</span><span class="w">
</span><span class="s">&quot;The locale :he with number system :hebr does not define a format :percent&quot;</span><span class="p" data-group-id="7323280605-3">}</span><span class="p" data-group-id="7323280605-2">}</span></code></pre>
</section>
</section>
<section class="detail" id="to_string!/2">
<span id="to_string!/1"></span>
<div class="detail-header">
<a href="#to_string!/2" class="detail-link" title="Link to this function">
<i class="ri-link-m" aria-hidden="true"></i>
<span class="sr-only">Link to this function</span>
</a>
<h1 class="signature" translate="no">to_string!(number, options \\ default_options())</h1>
<a href="https://github.com/plausible/analytics/blob/main/lib/plausible/cldr.ex#L1" class="icon-action" rel="help" title="View Source">
<i class="ri-code-s-slash-line" aria-hidden="true"></i>
<span class="sr-only">View Source</span>
</a>
</div>
<section class="docstring">
<div class="specs">
<pre translate="no"><span class="attribute">@spec</span> to_string!(<a href="https://hexdocs.pm/elixir/typespecs.html#built-in-types">number</a>() | <a href="https://hexdocs.pm/decimal/2.1.1/Decimal.html#t:t/0">Decimal.t</a>() | <a href="https://hexdocs.pm/elixir/String.html#t:t/0">String.t</a>(), <a href="https://hexdocs.pm/elixir/Keyword.html#t:t/0">Keyword.t</a>() | <a href="https://hexdocs.pm/elixir/typespecs.html#basic-types">map</a>()) ::
<a href="https://hexdocs.pm/elixir/String.html#t:t/0">String.t</a>() | <a href="https://hexdocs.pm/elixir/typespecs.html#built-in-types">no_return</a>()</pre>
</div>
<p>Same as the execution of <a href="#to_string/2"><code class="inline">to_string/2</code></a> but raises an exception if an error would be
returned.</p><h2 id="to_string!/2-arguments" class="section-heading">
<a href="#to_string!/2-arguments" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Arguments</span>
</h2>
<ul><li><p><code class="inline">number</code> is an integer, float or Decimal to be formatted</p></li><li><p><code class="inline">options</code> is a keyword list defining how the number is to be formatted. See
<a href="#to_string/2"><code class="inline">Plausible.Cldr.Number.to_string/2</code></a></p></li></ul><h2 id="to_string!/2-returns" class="section-heading">
<a href="#to_string!/2-returns" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Returns</span>
</h2>
<ul><li><p>a formatted number as a string or</p></li><li><p>raises an exception</p></li></ul><h2 id="to_string!/2-examples" class="section-heading">
<a href="#to_string!/2-examples" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Examples</span>
</h2>
<pre><code class="makeup elixir" translate="no"><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string!</span><span class="w"> </span><span class="mi">12345</span><span class="w">
</span><span class="s">&quot;12,345&quot;</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">to_string!</span><span class="w"> </span><span class="mi">12345</span><span class="p">,</span><span class="w"> </span><span class="ss">locale</span><span class="p">:</span><span class="w"> </span><span class="s">&quot;fr&quot;</span><span class="w">
</span><span class="s">&quot;12345&quot;</span></code></pre>
</section>
</section>
<section class="detail" id="validate_number_system/2">
<div class="detail-header">
<a href="#validate_number_system/2" class="detail-link" title="Link to this function">
<i class="ri-link-m" aria-hidden="true"></i>
<span class="sr-only">Link to this function</span>
</a>
<h1 class="signature" translate="no">validate_number_system(locale, number_system)</h1>
<a href="https://github.com/plausible/analytics/blob/main/lib/plausible/cldr.ex#L1" class="icon-action" rel="help" title="View Source">
<i class="ri-code-s-slash-line" aria-hidden="true"></i>
<span class="sr-only">View Source</span>
</a>
</div>
<section class="docstring">
<div class="specs">
<pre translate="no"><span class="attribute">@spec</span> validate_number_system(
<a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.Locale.html#t:locale_name/0">Cldr.Locale.locale_name</a>() | <a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.LanguageTag.html#t:t/0">Cldr.LanguageTag.t</a>(),
<a href="https://hexdocs.pm/ex_cldr_numbers/2.32.3/Cldr.Number.System.html#t:system_name/0">Cldr.Number.System.system_name</a>() | <a href="https://hexdocs.pm/ex_cldr_numbers/2.32.3/Cldr.Number.System.html#t:types/0">Cldr.Number.System.types</a>()
) :: {:ok, <a href="https://hexdocs.pm/ex_cldr_numbers/2.32.3/Cldr.Number.System.html#t:system_name/0">Cldr.Number.System.system_name</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>
</div>
<p>Return a valid number system from a provided locale and number
system name or type.</p><p>The number system or number system type must be valid for the
given locale. If a number system type is provided, the
underlying number system is returned.</p><h2 id="validate_number_system/2-arguments" class="section-heading">
<a href="#validate_number_system/2-arguments" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Arguments</span>
</h2>
<ul><li><p><code class="inline">locale</code> is any valid locale name returned by <a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.html#known_locale_names/1"><code class="inline">Cldr.known_locale_names/1</code></a>
or a <a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.LanguageTag.html"><code class="inline">Cldr.LanguageTag</code></a> struct returned by <a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.Locale.html#new!/2"><code class="inline">Cldr.Locale.new!/2</code></a></p></li><li><p><code class="inline">system_name</code> is any number system name returned by
<a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.html#known_number_systems/0"><code class="inline">Cldr.known_number_systems/0</code></a> or a number system type
returned by <a href="https://hexdocs.pm/ex_cldr/2.37.5/Cldr.html#known_number_system_types/0"><code class="inline">Cldr.known_number_system_types/0</code></a></p></li></ul><h2 id="validate_number_system/2-examples" class="section-heading">
<a href="#validate_number_system/2-examples" class="hover-link">
<i class="ri-link-m" aria-hidden="true"></i>
</a>
<span class="text">Examples</span>
</h2>
<pre><code class="makeup elixir" translate="no"><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">validate_number_system</span><span class="w"> </span><span class="s">&quot;en&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">:latn</span><span class="w">
</span><span class="p" data-group-id="0667083861-1">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="ss">:latn</span><span class="p" data-group-id="0667083861-1">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">validate_number_system</span><span class="w"> </span><span class="s">&quot;en&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">:default</span><span class="w">
</span><span class="p" data-group-id="0667083861-2">{</span><span class="ss">:ok</span><span class="p">,</span><span class="w"> </span><span class="ss">:latn</span><span class="p" data-group-id="0667083861-2">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">validate_number_system</span><span class="w"> </span><span class="s">&quot;en&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">:unknown</span><span class="w">
</span><span class="p" data-group-id="0667083861-3">{</span><span class="ss">:error</span><span class="p">,</span><span class="w">
</span><span class="p" data-group-id="0667083861-4">{</span><span class="nc">Cldr.UnknownNumberSystemError</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;The number system :unknown is unknown&quot;</span><span class="p" data-group-id="0667083861-4">}</span><span class="p" data-group-id="0667083861-3">}</span><span class="w">
</span><span class="gp unselectable">iex&gt; </span><span class="nc">Plausible.Cldr.Number</span><span class="o">.</span><span class="n">validate_number_system</span><span class="w"> </span><span class="s">&quot;zz&quot;</span><span class="p">,</span><span class="w"> </span><span class="ss">:default</span><span class="w">
</span><span class="p" data-group-id="0667083861-5">{</span><span class="ss">:error</span><span class="p">,</span><span class="w"> </span><span class="p" data-group-id="0667083861-6">{</span><span class="nc">Cldr.InvalidLanguageError</span><span class="p">,</span><span class="w"> </span><span class="s">&quot;The language </span><span class="se">\&quot;</span><span class="s">zz</span><span class="se">\&quot;</span><span class="s"> is invalid&quot;</span><span class="p" data-group-id="0667083861-6">}</span><span class="p" data-group-id="0667083861-5">}</span></code></pre>
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