Subject: Re: (dsssl) node-lists From: Brandon Ibach <bibach@xxxxxxxxxxxxxx> Date: Mon, 9 Jul 2001 10:16:33 -0500 |
Quoting Patrice LaFlamme <ewd@xxxxxxxxxx>: > I was wondering if there's any way to append nodes to a node-list? > something like, I have an empty-node-list, and I want to append, > say, a string or a number, then another, then another... > > I guess what I want is an array ;) > I think you may be confused about exactly what a node-list is. A node-list is an ordered collection of nodes from a grove (document). It can only contain nodes, no strings or numbers. Now, if you're just looking for an "array", then a regular list would serve your purpose. There are several ways to create a list, the simplest of which being: (list "abc" 123 ...) (as many items as you want) If you also want nodes in your list, you can have node-lists as items in your list. DSSSL doesn't have a "node" type. To represent a single node, you just have a singleton node-list. Say you have a node-list "nl". You could break it up into a list of singleton node-lists with: (node-list->list nl) You could also add other items onto this list: (append (node-list->list nl) (list "abc" 123)) If your version of Jade/OpenJade doesn't have the (node-list->list) function, you may need to add the following to your style-sheet: (define (node-list->list nl) (reverse (node-list-reduce nl (lambda (result snl) (cons snl result)) '()))) And if, by chance, it doesn't have (node-list-reduce): (define (node-list-reduce nl proc obj) (if (node-list-empty? nl) obj (node-list-reduce (node-list-rest nl) proc (proc obj (node-list-first nl))))) -Brandon :) DSSSList info and archive: http://www.mulberrytech.com/dsssl/dssslist
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