[tags_findcustom]

Description

Parses the supplied raw Lasso code and returns a set containing all the custom tags used in it. Requires [tags_native].

Sample Usage

// the tag [image_scalewithin] uses [math_proportion]

var('data') = include_raw('/path/to/image_scalewithin.inc');	
tags_findcustom(#data);


-> set: math_proportion

Source Code

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define_tag(
	'findcustom',
	-namespace='tags_',
	-req='code',
	-priority='replace',
	-description='Parses the supplied raw Lasso code and returns a set containing all the custom tags used in it.'
);
	local('tokens') = lasso_parser(
		#code,
		-delimiters,
		-plaintext
	);
	
	local(
		'tags' = set,
		'lastToken' = ''
	);
		
	while(#tokens->hasmore);
		local('name' = #tokens->next);
		
		if(
			#tokens->tokentype == 'KEYWORD' 
			&& !#name->beginswith('/') 
			&& (: '#', '$', '->') !>> #lastToken 
			&& tags_native !>> #name
		);
			#tags->insert(#name);
		/if;
		
		#lastToken = #name;
	/while;
	
	return(#tags);
/define_tag;

Related Tags

• tags_custom
• tags_native

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