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Role: Documentation
Content type: text/markdown
Description: Documentation
Class: Dromeo PHP Router Library
Route HTTP requests to functions with URL patterns
Author: By
Last change: v.1.2.0, contd

* namedroutes are passed on to top router
* .off() is handled recursively in subrouters
* various edits and changes
v.1.2.0 in progress

* onGroup method to group routes under common (literal) prefix (in progress)
* handle edge case in makePattern
* original matched extracts contain same defaults (if given)
* fix typo in PHP,JS in clearRoute
* update tests
Date: 1 month ago
Size: 9,692 bytes


Class file image Download


A Simple and Flexible Pattern Routing Framework for PHP, JavaScript, Python


Version: 1.2.0

Etymology of "dromos" (path) Etymology pf "path"


see also:

  • ModelView a simple, fast, powerful and flexible MVVM framework for JavaScript
  • tico a tiny, super-simple MVC framework for PHP
  • LoginManager a simple, barebones agnostic login manager for PHP, JavaScript, Python
  • SimpleCaptcha a simple, image-based, mathematical captcha with increasing levels of difficulty for PHP, JavaScript, Python
  • Dromeo a flexible, and powerful agnostic router for PHP, JavaScript, Python
  • PublishSubscribe a simple and flexible publish-subscribe pattern implementation for PHP, JavaScript, Python
  • Importer simple class & dependency manager and loader for PHP, JavaScript, Python
  • Contemplate a fast and versatile isomorphic template engine for PHP, JavaScript, Python
  • HtmlWidget html widgets, made as simple as possible, both client and server, both desktop and mobile, can be used as (template) plugins and/or standalone for PHP, JavaScript, Python (can be used as plugins for Contemplate)
  • Paginator simple and flexible pagination controls generator for PHP, JavaScript, Python
  • Formal a simple and versatile (Form) Data validation framework based on Rules for PHP, JavaScript, Python
  • Dialect a cross-vendor & cross-platform SQL Query Builder, based on GrammarTemplate, for PHP, JavaScript, Python
  • DialectORM an Object-Relational-Mapper (ORM) and Object-Document-Mapper (ODM), based on Dialect, for PHP, JavaScript, Python
  • Unicache a simple and flexible agnostic caching framework, supporting various platforms, for PHP, JavaScript, Python
  • Xpresion a simple and flexible eXpression parser engine (with custom functions and variables support), based on GrammarTemplate, for PHP, JavaScript, Python
  • Regex Analyzer/Composer Regular Expression Analyzer and Composer for PHP, JavaScript, Python


see /test folder

Route Patterns:

// Examples:

// match literal route

// match route and capture the last numeric part into 'id' param

// same as previous, numeric 'id' part is optional

// numeric part is optional but not captured (no param name given)

// numeric part is required but not captured (no param name given)

// part is required and captured as 'name', pattern is assumed %PART%=[^/]+ (capture everything between slashes)

// optional captured 'id' part is now the numeric pattern plus the leading '/'

// optional captured 'id' part is only the numeric pattern without the leading '/', i.e group 1



  • `Dromeo` is also a `XPCOM JavaScript Component` (Firefox) (e.g to be used in firefox browser addons/plugins)

// -- instance methods --
// --------------------------------------------------------

// optional route_prefix to be used in case all routes have a common prefix
// so can define routes using only the part that differs (easier/shorter code)
var router = new Dromeo(prefix='');

// set/define delimiters used in route-patterns, see examples
router.defineDelimiters(['{', '}', '%', '%', ':']);

// define a (new) sub-pattern identified with className
// sub-patterns are used in route-patterns,
// e.g "{%ALNUM%:user}", "ALNUM" is an alpha-numeric sub-pattern, i.e "[a-zA-Z0-9\\-_]+"
// default sub-patterns:
// ALPHA =>   "[a-zA-Z\\-_]+"            alphabetic only
// NUMBR =>   "[0-9]+"                   numeric only
// INT   =>   "[0-9]+"                   integer with associated optional typecaster
// ALNUM =>   "[a-zA-Z0-9\\-_]+"         alpha-numeric only
// QUERY =>   "\\?[^?#]+"                query part with leading '?'
// FRAGMENT =>"#[^?#]+"                  hash/fragment part with leading '#'
// PART  =>   "[^\\/?#]+"                arbitrary path part (between /../)
// ALL   =>   ".+"                       arbitrary sequence
router.definePattern(className, subPattern [, typecaster = null]);

// unset/remove the sub-pattern "clasName"

// define a custom type, to be used as (optional) typecaster for matching parts
router.defineType(type, typecaster);

// reset/remove routes and fallback handler

// create a URI from named_route pattern with given parameter values
// named routes are created by adding a name property when defining a route
// NOTE: will throw error if parameter is missing and is required (not optional) in the route pattern
// if strict is set to true will also try to match the parameter value based on route pattern type, eg numeric/alphanumeric etc.. and will throw error if pattern test failed
router.make(named_route [, params = Object()[, strict = false]]);

// example
    route: '/{:user}/{:id}',
    name: 'my_route',
    handler: function(){/../}
console.log(router.make('my_route', {user:'foo',id:'123'}));
// prints "/foo/123"

// set/unset fallback handler
router.fallback([handlerFunc | false | null]);

// set a handler for routePattern, with optional defaults object (oneOff if "one" used)
// route object configuration
//    route: '..', // the route pattern matched, needed
//    name: '..', // create a named route to be referenced at will, for example in order to create URLs matching the route pattern with given parameters
//    method: 'post', // the method (case-insensitive), default is '*', i.e any, can use array of methods as well, i.e ['get','post']
//    handler: function(params){/../}, // the route handler to be called, needed
//    defaults: {/../}, // any default and/or extra parameters to be used, if missing, and passed to handler, default is {}
//    types: {/../} // optional typecasters for specific matches, i.e INTEGER, STRING, ARRAY, PARAMS or custom, default null

// this also works:

// set handler(s) for multiple routePattern(s) (oneOff if "one" used)

// using array of objects
    /etc ../

// using variable arguments
    /etc ../

// set a group of routes sharing common prefix
router.onGroup(prefix, function(subRouter){
    subRouter.onGroup(prefix2, function(subRouter2){/../}); // can be nested
    // ..

// remove the routePattern (optionally if handlerFunc matches as well) | routeObj [, handlerFunc = null]);

// redirect to given url (with optional statusCode and statusMsg)
// in Node, the response object from node.http should be passed as well
router.redirect(url, response [, statusCode=302, statusMsg=true]);

// parse and extract uri components and optional query/fragment params as objects (using RFC3986)
var components = router.parse(url [, query_p='query_params', fragment_p='fragment_params']);

// parse/unglue a uri component into a params object (using RFC3986)
var params = router.unglue(uriComponent);

// build (url-encoded) url from baseUrl and query and/or hash objects (using RFC3986)
var url =, query=null, hash=null);

// build/glue together a uri component from a params object (using RFC3986)
var component = router.glue(params);

// match and route a given url
// (with optional method, only routes which match the method will be used),
// returns true if matched any routePattern else false
var matched = router.route(url, method="*", breakOnFirstMatch=true, originalUrl=null, originalKey=null);


  • add support for (http/request) method [DONE]
  • add support for extra passed defaults [DONE]
  • add support for (optional) type-casting of matched parameters [DONE]
  • add support for making string (URI) from route pattern with given parameters [DONE]
  • add support for extracting original matches if originalInput (if passed), eg with original case, is different than givenInput [DONE]
  • add support for subgroup of routes under common prefix (ie. `onGroup()`) [DONE]
  • add support for RFC 6570 URI Template specification (TODO?)
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