Re: [WebDNA] How to use [function]
This WebDNA talk-list message is from 2012
It keeps the original formatting.
numero = 108667
interpreted = N
texte = Banahan wrote: > Hi, > > I have been spending hours digging in Govinda great job in > WebdnaCodeSparker. > > I must confess I have never been using the [function] and I now > wondering how to use it... > I went thought the doc, it clear to me how to send variable to a > function that will execute it. > > But How to use function with a search contexts? [snip] Lawrence, if you are on 6x, spend some time in the IDE if you want to learn about Functions. webdna.us is lacking in instructions for the use of the function context. Functions, with use of [return], as Toby suggested, are great for removing white space. However, they have *many* other uses as well. They provide innate variable scoping. They are great for creating organized libraries of common bits of code that can be called repeatedly as WebDNA Tags. However, as Ken suggested, it's not a required learning to be able to do things in WebDNA. Functions are kind of a comfort level step. Ken, you could make a function out of your white space code! :-) (I would use just one grep though) ------------------------ [function name=removewhitespace] [grep search=[%0A%0D%09]&replace=]| This is a page with a bunch of white space. |[/grep][/function] [removewhitespace] ------------------------- You could also automate it... I know Chris stated that he was deprecating the pre/post parse scripts at one point.. so not sure if they are there in WebDNA7 and if they will be supported in the future.. but in CICADA (my much more preferred edition ;-) ), you could automate white space removal by using the postparsescript... just add this to the script. ------------------------- [grep search=[%0A%0D%09]&replace=][WEBDNA_TEMPLATE_RESULTS][/grep] ------------------------- Or, for more control... you could automate white space removal for certain templates only... First, define a removewhitespace function in the preparse script (in the include file that is called by the preparse script): ------------------------- [!] ** removes white space other than spaces ** [/!] [function name=removewhitespace] [return][grep search=[%0A%0D%09]&replace=][params_string][/grep][/return] [/function] ------------------------- Then utilize it in the post parse script. ------------------------- PostParseScript [if "[url][thisurl][/url]" ^ "[url]
[/url]"] [then] [removewhitespace [url][WEBDNA_TEMPLATE_RESULTS][/url]] [/then] [else] [WEBDNA_TEMPLATE_RESULTS] [/else] [/if] (not tested, but should work) ---------------------------- I should finally note that you should be careful in removing white space globally as it is not hard to remove desired characters by mistake... I prefer Toby's method.. much more controlled. Donovan -- Donovan Brooke Euca Design Center www.euca.us
Associated Messages, from the most recent to the oldest:
Banahan wrote: > Hi, > > I have been spending hours digging in Govinda great job in > WebdnaCodeSparker. > > I must confess I have never been using the [function] and I now > wondering how to use it... > I went thought the doc, it clear to me how to send variable to a > function that will execute it. > > But How to use function with a search contexts? [snip] Lawrence, if you are on 6x, spend some time in the IDE if you want to learn about Functions. webdna.us is lacking in instructions for the use of the function context. Functions, with use of [return], as Toby suggested, are great for removing white space. However, they have *many* other uses as well. They provide innate variable scoping. They are great for creating organized libraries of common bits of code that can be called repeatedly as WebDNA Tags. However, as Ken suggested, it's not a required learning to be able to do things in WebDNA. Functions are kind of a comfort level step. Ken, you could make a function out of your white space code! :-) (I would use just one grep though) ------------------------ [function name=removewhitespace] [grep search=[%0A%0D%09]&replace=]| This is a page with a bunch of white space. |[/grep][/function] [removewhitespace] ------------------------- You could also automate it... I know Chris stated that he was deprecating the pre/post parse scripts at one point.. so not sure if they are there in WebDNA7 and if they will be supported in the future.. but in CICADA (my much more preferred edition ;-) ), you could automate white space removal by using the postparsescript... just add this to the script. ------------------------- [grep search=[%0A%0D%09]&replace=][WEBDNA_TEMPLATE_RESULTS][/grep] ------------------------- Or, for more control... you could automate white space removal for certain templates only... First, define a removewhitespace function in the preparse script (in the include file that is called by the preparse script): ------------------------- [!] ** removes white space other than spaces ** [/!] [function name=removewhitespace] [return][grep search=[%0A%0D%09]&replace=][params_string][/grep][/return] [/function] ------------------------- Then utilize it in the post parse script. ------------------------- PostParseScript [if "[url][thisurl][/url]" ^ "[url][/url]"] [then] [removewhitespace [url][WEBDNA_TEMPLATE_RESULTS][/url]] [/then] [else] [WEBDNA_TEMPLATE_RESULTS] [/else] [/if] (not tested, but should work) ---------------------------- I should finally note that you should be careful in removing white space globally as it is not hard to remove desired characters by mistake... I prefer Toby's method.. much more controlled. Donovan -- Donovan Brooke Euca Design Center www.euca.us
Donovan Brooke
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