Is there a XPATH implementation?

mdbs99 · 2018-02-12 21:33:44

I know that is possible to work with XML instead JSON (see here). But is there an XPATH implementation to work with?

FPC has an implementation of XPATH but, it's based on WideString. I would like to know if we have a (fastest) implementation by Synopse, which works on Delphi and FPC.

ab · 2018-02-13 12:07:36

No, XML support is very small, and not intended to be bigger...
We are JSON-grounded, which is a per-representation format, whereas XML is a strongly typed format.

There won't be any XPATH implementation, since there is no real XML implementation available - just simple (but fast) JSON to XML-compatible conversion.

mdbs99 · 2018-02-13 14:38:38

All right.
But, as I have many systems that works with XML, what is the simplest way to use mORMot to work with?
In mostly cases, I need to receive a XML, parse (using XPATH), create a new one, and send it back.
I mean, is that possible (and fast) to use some mORMot "XML to JSON" functions, parse the JSON, create a new one, and use "JSON to XML" to send it as XML at the end?

Last edited by mdbs99 (2018-02-13 14:52:55)

ab · 2018-02-13 15:17:24

There is a JSON to XML function, but not the reverse one.

mdbs99 · 2018-02-13 20:16:13

It's strange do not have anyone complain about missing XML.
Many companies use WebServices and XML is the mostly used.

ab · 2018-02-14 07:28:57

XML is so 90's.... :-)

mdbs99 · 2018-02-14 11:48:19

Just like Pascal

ab · 2018-02-14 14:49:56

Not 2018's object pascal!

Plain pascal is so disco / 70's...

mdbs99 · 2018-02-14 15:08:59

Touché!

Leslie7 · 2018-02-14 15:11:51

mdbs99,

This might be useful for you. You can pick the functionality you need and combine with the mORMot infrastructure.

https://github.com/benibela/internettools

mdbs99 · 2018-02-14 16:52:55

Hello Leslie7
Actually, FPC already has a XPATH implementation... but this project could be interesting. Thanks for the tip.

edwinsn · 2018-02-19 04:03:45

XML is too verbose and is such a mess, JSON is better.

Food for thought: http://jmespath.org/

hnb · 2018-02-19 10:26:13

the reality is not perfect and usage of JSON is not always possible. Personally I like the idea of :

https://www.npmjs.com/package/xml-js

some ideas from xml-js may be used in mORMot.

mpv · 2018-02-19 10:44:56

We use xmltojson and jsontoxml with SyNode in production (not very fast, but work for our tasks)

mdbs99 · 2018-02-19 12:14:25

edwinsn wrote:

XML is too verbose and is such a mess, JSON is better.
Food for thought: http://jmespath.org/

It's not about verbosity or not. It's about integration with other systems.
As you can see above, there are some that think the same.

edwinsn · 2018-02-20 09:03:13

@mdbs99, yes, you have a valid point

@mpv, do we have a compatible Node.Js package list for syNode?

mORMot Open Source

#1 2018-02-12 21:33:44

Is there a XPATH implementation?

#2 2018-02-13 12:07:36

Re: Is there a XPATH implementation?

#3 2018-02-13 14:38:38

Re: Is there a XPATH implementation?

#4 2018-02-13 15:17:24

Re: Is there a XPATH implementation?

#5 2018-02-13 20:16:13

Re: Is there a XPATH implementation?

#6 2018-02-14 07:28:57

Re: Is there a XPATH implementation?

#7 2018-02-14 11:48:19

Re: Is there a XPATH implementation?

#8 2018-02-14 14:49:56

Re: Is there a XPATH implementation?

#9 2018-02-14 15:08:59

Re: Is there a XPATH implementation?

#10 2018-02-14 15:11:51

Re: Is there a XPATH implementation?

#11 2018-02-14 16:52:55

Re: Is there a XPATH implementation?

#12 2018-02-19 04:03:45

Re: Is there a XPATH implementation?

#13 2018-02-19 10:26:13

Re: Is there a XPATH implementation?

#14 2018-02-19 10:44:56

Re: Is there a XPATH implementation?

#15 2018-02-19 12:14:25

Re: Is there a XPATH implementation?

#16 2018-02-20 09:03:13

Re: Is there a XPATH implementation?

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