Twig text transform (case) macros

README.md

Twig text transform (case) macros

Macros for

• camelCase ( camel(string))
• PascaleCase (pascale(string))
• snake_case (snake(string))
• SCREAMING_SNAKE_CASE (screamingsnake(string))

Demo

https://twigfiddle.com/djctym

example.twig

{% from 'text-transform-macros.twig' import camel, pascale, screamingsnake, snake %}

{{ camel('a-b c') }}
{{ pascale('a-b c') }}
{{ snake('a-b c') }}
{{ screamingsnake('a-b c') }}

text-transform-macros.twig

{% macro camelHelper(string, delimiterOld, delimiterNew = '') %}
    {% set segments = string|trim|split(delimiterOld) -%}
    {% set result = segments[0] -%}
    {% if segments|length > 1 -%}
        {% set result = [result]
            |merge(segments[1:]|map(s => s|capitalize))
            |join(delimiterNew) -%}
    {% endif -%}
    
    {{ result -}}
{% endmacro %}

{% macro camel(string) -%}
    {% set result = string -%}
    {% set result = _self.camelHelper(result, '-') %}
    {% set result = _self.camelHelper(result, ' ') %}
    
    {{ result -}}
{% endmacro %}

{% macro pascale(string) -%}
    {% set result = string -%}
    {% set result = _self.camelHelper(result, '-') %}
    {% set result = _self.camelHelper(result, ' ') %}
    
    {{ result|upper -}}
{% endmacro %}

{% macro snake(string) -%}
    {{ string|split('-')|join('_')|split(' ')|join('_') -}}
{% endmacro %}

{% macro screamingsnake(string) -%}
    {{ _self.snake(string)|upper -}}
{% endmacro %}