/ 
Text-MustacheTemplate-0.04
River stage zero No dependents
/ Text::MustacheTemplate::Evaluator

NAME

Text::MustacheTemplate::Evaluator - [INTERNAL] Context evaluation for Mustache templates

SYNOPSIS

use Text::MustacheTemplate::Evaluator qw/
    retrieve_variable
    evaluate_section
    evaluate_section_variable
/;

my @context = ({ name => 'World', items => [1, 2, 3] });

# Get a variable value
my $value = retrieve_variable(\@context, 'name');

# Evaluate if a section should be rendered
my @section_ctx = evaluate_section_variable(\@context, 'items');

# Evaluate a direct value
my @items_ctx = evaluate_section($context[-1]->{items});

DESCRIPTION

Text::MustacheTemplate::Evaluator provides functions for evaluating Mustache template contexts and retrieving values from nested context structures according to the Mustache specification.

This is internal interface for Text::MustacheTemplate. The APIs may change without notice.

FUNCTIONS

retrieve_variable(\@context, @path)

Retrieves a value from the context stack by following the given path. Returns the value if found, otherwise undef.

Parameters:

\@context - An array reference to the context stack
@path - The dot-separated path components to the variable
evaluate_section($value)

Evaluates whether a section should be rendered and how it should be processed. Returns an array of context objects for iteration.

Parameters:

$value - The value to evaluate

For different value types:

  • Undefined or falsy values: Returns an empty array (section not rendered)

  • Array references: Returns the array elements for iteration

  • Hash references: Returns the hash reference itself for context

  • Code references: Returns the code reference for lambda processing

  • True scalar values: Returns the value as a single-element array

evaluate_section_variable(\@context, @path)

Retrieves a variable by path and evaluates it as a section. Combines retrieve_variable and evaluate_section.

Parameters:

\@context - An array reference to the context stack
@path - The dot-separated path components to the variable

LAMBDA SUPPORT

When a section value is a code reference (lambda), the Evaluator provides special handling:

  • The lambda receives the raw section content as its first argument

  • If $LAMBDA_RENDERER is defined, the lambda's result will be processed by this renderer

  • This enables dynamic template generation within templates

LICENSE