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A simple regexp question

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  A simple regexp question justaguy <lichunshen84@gmail.com> - 2012-11-30 22:20 -0800
    Re: A simple regexp question Stefan Weiss <krewecherl@gmail.com> - 2012-12-01 09:58 +0100
      Re: A simple regexp question justaguy <lichunshen84@gmail.com> - 2012-12-01 07:35 -0800
        Re: A simple regexp question justaguy <lichunshen84@gmail.com> - 2012-12-01 07:43 -0800

#17389 — A simple regexp question

I have a json string that reads like this:
 ('partname':['Antenna'],'partdescription':['Sensor Systems Dual
Iridium Antenna;'])

The tool I'm using to parse json
JSON.parse(theString)
failed, complaining about unexpected character.

So, I wonder if I remove all the occurences of [' and '] would help.

I attempted
replace(/['/g,"")
but it failed.

What's wrong with the above global replace syntax?

Thanks in advance.

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#17391

On 2012-12-01 07:20, justaguy wrote:
> I have a json string that reads like this:
>  ('partname':['Antenna'],'partdescription':['Sensor Systems Dual
> Iridium Antenna;'])
> 
> The tool I'm using to parse json
> JSON.parse(theString)
> failed, complaining about unexpected character.
> 
> So, I wonder if I remove all the occurences of [' and '] would help.

It would not, because those aren't the unexpected characters. JSON
strings are serializations of objects or arrays, and as such they always
start with "{" or "[", respectively. Strings values have to be in double
quotes.

The JSON syntax is very simple; take a look at the diagram on this page:
http://json.org/

The syntactically correct JSON form of your string would be

  {"partname":["Antenna"],"partdescription":["Sensor Systems Dual
  Iridium Antenna;"]}

(after removing the line break artifact).

Also note that your object contains arrays as values for partname and
partdescription. If that's not what you want, use strings instead:

  {"partname":"Antenna","partdescription":"Sensor Systems Dual
  Iridium Antenna;"}

The semicolon after Antenna looks unintentional, too, but I don't know
what you intend to do with the data.

> I attempted
> replace(/['/g,"")
> but it failed.
> 
> What's wrong with the above global replace syntax?

"[" is a special character in regular expressions. If you want to use it
literally, you need to escape it:

  str.replace(/\['/g, "");


- stefan

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#17395

On Dec 1, 3:58 am, Stefan Weiss <krewech...@gmail.com> wrote:
> On 2012-12-01 07:20, justaguy wrote:
>
> > I have a json string that reads like this:
> >  ('partname':['Antenna'],'partdescription':['Sensor Systems Dual
> > Iridium Antenna;'])
>
> > The tool I'm using to parse json
> > JSON.parse(theString)
> > failed, complaining about unexpected character.
>
> > So, I wonder if I remove all the occurences of [' and '] would help.
>
> It would not, because those aren't the unexpected characters. JSON
> strings are serializations of objects or arrays, and as such they always
> start with "{" or "[", respectively. Strings values have to be in double
> quotes.
>
> The JSON syntax is very simple; take a look at the diagram on this page:http://json.org/
>
> The syntactically correct JSON form of your string would be
>
>   {"partname":["Antenna"],"partdescription":["Sensor Systems Dual
>   Iridium Antenna;"]}
>
> (after removing the line break artifact).
>
> Also note that your object contains arrays as values for partname and
> partdescription. If that's not what you want, use strings instead:
>
>   {"partname":"Antenna","partdescription":"Sensor Systems Dual
>   Iridium Antenna;"}
>
> The semicolon after Antenna looks unintentional, too, but I don't know
> what you intend to do with the data.
>
> > I attempted
> > replace(/['/g,"")
> > but it failed.
>
> > What's wrong with the above global replace syntax?
>
> "[" is a special character in regular expressions. If you want to use it
> literally, you need to escape it:
>
>   str.replace(/\['/g, "");
>
> - stefan

What you wrote makes lots of sense.  Thanks.
I ended up with retrieving data from the JSON object (array) directly
(since I know its structure already).  It's so much cleaner this way
rather than data parsing.

Another question,
How do I pass a parameter/value to a class if that's possible?
Not even sure if it's possible.

For instance, in this case.
instead of
id="partnumber2" class="autocomplete"
we'll have the following:
id="partnumber2" class="autocomplete?row=2"

If not, how do I accomplish the same thing?
That is, at the end of the class execution, I'd like to perform
another js function which needs a parameter and its value.

Many thanks.

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#17397

On Dec 1, 10:35 am, justaguy <lichunshe...@gmail.com> wrote:
> On Dec 1, 3:58 am, Stefan Weiss <krewech...@gmail.com> wrote:
>
>
>
>
>
>
>
>
>
> > On 2012-12-01 07:20, justaguy wrote:
>
> > > I have a json string that reads like this:
> > >  ('partname':['Antenna'],'partdescription':['Sensor Systems Dual
> > > Iridium Antenna;'])
>
> > > The tool I'm using to parse json
> > > JSON.parse(theString)
> > > failed, complaining about unexpected character.
>
> > > So, I wonder if I remove all the occurences of [' and '] would help.
>
> > It would not, because those aren't the unexpected characters. JSON
> > strings are serializations of objects or arrays, and as such they always
> > start with "{" or "[", respectively. Strings values have to be in double
> > quotes.
>
> > The JSON syntax is very simple; take a look at the diagram on this page:http://json.org/
>
> > The syntactically correct JSON form of your string would be
>
> >   {"partname":["Antenna"],"partdescription":["Sensor Systems Dual
> >   Iridium Antenna;"]}
>
> > (after removing the line break artifact).
>
> > Also note that your object contains arrays as values for partname and
> > partdescription. If that's not what you want, use strings instead:
>
> >   {"partname":"Antenna","partdescription":"Sensor Systems Dual
> >   Iridium Antenna;"}
>
> > The semicolon after Antenna looks unintentional, too, but I don't know
> > what you intend to do with the data.
>
> > > I attempted
> > > replace(/['/g,"")
> > > but it failed.
>
> > > What's wrong with the above global replace syntax?
>
> > "[" is a special character in regular expressions. If you want to use it
> > literally, you need to escape it:
>
> >   str.replace(/\['/g, "");
>
> > - stefan
>
> What you wrote makes lots of sense.  Thanks.
> I ended up with retrieving data from the JSON object (array) directly
> (since I know its structure already).  It's so much cleaner this way
> rather than data parsing.
>
> Another question,
> How do I pass a parameter/value to a class if that's possible?
> Not even sure if it's possible.
>
> For instance, in this case.
> instead of
> id="partnumber2" class="autocomplete"
> we'll have the following:
> id="partnumber2" class="autocomplete?row=2"
>
> If not, how do I accomplish the same thing?
> That is, at the end of the class execution, I'd like to perform
> another js function which needs a parameter and its value.
>
> Many thanks.

Oh, never mind the "pass a parameter/value to a class if that's
possible? " question, I've already solved the problem.  Thanks anyway.

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