Chain function -vs- Custom Function

JeromyNix · 2011-06-10 21:17

I'm not really sure what the difference is....

and i've been attempting to program a replacement for scraperxml (which seems to be a dead project) but i'm a bit stumped on the difference between these two types of functions.

bambi73 · 2011-06-10 22:22

Code:

<url function="AAA">BBB</url>

uses BBB as URL and passes content (of that web page) to function AAA in $$1

Code:

<chain function="AAA">BBB</url>

passes BBB directly to function AAA as string in $$1

JeromyNix · 2011-06-14 22:39

Thanks that explained it perfectly

JeromyNix · 2011-06-23 11:21

One more question.

Is there a priority given to chain functions in relation to custom functions after the function calling them has run its course.

In other words
are chain/custom functions executed in the order of occurrence, or is the set of chain functions run before any custom functions or vice-versa?

budswell · 2013-04-18 03:10

Is there are way to pass more than one parameter to a chain function?
Or do I just have to encode them into a string and then split them back out inside the function.

**spiff** · 2013-04-18 13:49

they are executed in xml order in a depth-first recursion. you have to concat to pass multiple buffers.

JeromyNix Member Posts: 64 Joined: Dec 2010 Reputation: 0	2011-06-10 21:17 Post: #1 I'm not really sure what the difference is.... and i've been attempting to program a replacement for scraperxml (which seems to be a dead project) but i'm a bit stumped on the difference between these two types of functions.
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bambi73 Senior Member Posts: 165 Joined: Jan 2010 Reputation: 0 Location: Czech Republic	2011-06-10 22:22 Post: #2 Code: `<url function="AAA">BBB</url>` uses BBB as URL and passes content (of that web page) to function AAA in $$1 Code: `<chain function="AAA">BBB</url>` passes BBB directly to function AAA as string in $$1
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JeromyNix Member Posts: 64 Joined: Dec 2010 Reputation: 0	2011-06-14 22:39 Post: #3 Thanks that explained it perfectly
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JeromyNix Member Posts: 64 Joined: Dec 2010 Reputation: 0	2011-06-23 11:21 Post: #4 One more question. Is there a priority given to chain functions in relation to custom functions after the function calling them has run its course. In other words are chain/custom functions executed in the order of occurrence, or is the set of chain functions run before any custom functions or vice-versa?
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budswell Junior Member Posts: 18 Joined: Feb 2012 Reputation: 1	2013-04-18 03:10 Post: #5 Is there are way to pass more than one parameter to a chain function? Or do I just have to encode them into a string and then split them back out inside the function.
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