Re: Parsing overhead for commenting out line endings
This WebDNA talk-list message is from 2003
It keeps the original formatting.
numero = 49197
interpreted = N
texte = The engine creates a new instance of the comment context for every [!] tokenit encounters. So, in the example below, the engine creates 11 contextinstances (for just one iteration of the loop). Without the extra comments,the engine would only create 5 context instances. However, the commentcontext code is fast and small, so the performance hit is not verysignificant. The new [return] context was created to eliminate the need touse those extra comment blocks when writing a function definition, as aconvenience to the programmer. And the code will run a bit faster.> -----Original Message-----> From: WebDNA Talk [mailto:WebDNA-Talk@talk.smithmicro.com]On Behalf Of> Rob Marquardt> Sent: Friday, April 04, 2003 3:08 PM> To: WebDNA Talk> Subject: Parsing overhead for commenting out line endings>>> I was looking through the 5.0 docs when I found this under> the [return]> context:>> > [function name=add_em_up][!]> > [/!][text]result=0[/text][!]> > [/!][loop start=1&end=10][!]> > [/!][text]result=[math][result]+[index][/math][/text][!]> > [/!][/loop][!]> > [/!][result][!]> > [/!][/function]> >> >> > Executing the above function, and wrapping the result with> URL tags, we get:> > 55> >> > The extra 'garbage' is gone, but using all those [!][/!]> pairs is cumbersome,> > and does add some extra parsing overhead.>> Just how *much* parsing overhead? An appreciable amount? I've> been doing> this damn near everywhere as a matter of course for years now.>> [suppressReturns] didn't make it into 5.0? ; )>>> Rob Marquardt> Designer/Resident Wirehead> Toast Design>> 800 Washington Avenue North> Minneapolis MN 55401> 612.330.9863 v> 612.321.9424 f> www.toastdesign.com>>> -------------------------------------------------------------> This message is sent to you because you are subscribed to> the mailing list
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The engine creates a new instance of the comment context for every [!] tokenit encounters. So, in the example below, the engine creates 11 contextinstances (for just one iteration of the loop). Without the extra comments,the engine would only create 5 context instances. However, the commentcontext code is fast and small, so the performance hit is not verysignificant. The new [return] context was created to eliminate the need touse those extra comment blocks when writing a function definition, as aconvenience to the programmer. And the code will run a bit faster.> -----Original Message-----> From: WebDNA Talk [mailto:WebDNA-Talk@talk.smithmicro.com]On Behalf Of> Rob Marquardt> Sent: Friday, April 04, 2003 3:08 PM> To: WebDNA Talk> Subject: Parsing overhead for commenting out line endings>>> I was looking through the 5.0 docs when I found this under> the [return]> context:>> > [function name=add_em_up][!]> > [/!][text]result=0[/text][!]> > [/!][loop start=1&end=10][!]> > [/!][text]result=[math][result]+[index][/math][/text][!]> > [/!][/loop][!]> > [/!][result][!]> > [/!][/function]> >> >> > Executing the above function, and wrapping the result with> URL tags, we get:> > 55> >> > The extra 'garbage' is gone, but using all those [!][/!]> pairs is cumbersome,> > and does add some extra parsing overhead.>> Just how *much* parsing overhead? An appreciable amount? I've> been doing> this damn near everywhere as a matter of course for years now.>> [suppressReturns] didn't make it into 5.0? ; )>>> Rob Marquardt> Designer/Resident Wirehead> Toast Design>> 800 Washington Avenue North> Minneapolis MN 55401> 612.330.9863 v> 612.321.9424 f> www.toastdesign.com>>> -------------------------------------------------------------> This message is sent to you because you are subscribed to> the mailing list .> To unsubscribe, E-mail to: > To switch to the DIGEST mode, E-mail to> > Web Archive of this list is at: http://webdna.smithmicro.com/-------------------------------------------------------------This message is sent to you because you are subscribed to the mailing list .To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://webdna.smithmicro.com/
Scott Anderson
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