Re: Google Chart URL

Re: Google Chart URL

[Reviczky, Adam]

> \asciimode can be overkill because it makes also “%” a normal character, better you define a command which change the catcodes.
> 
> \def\googlechart
>   {\begingroup
>    \setcatcodetable\vrbcatcodes
>    \dodoubleempty\dogooglechart}
> 
> \def\dogooglechart[#1][#2]%
>   {\endgroup
>    \externalfigure[#1][method=png,#2]}
> 
> \starttext
> \googlechart[https://chart.googleapis.com/chart?cht=p3&chs=250x100&chd=t:60,40&chl=Hello|World]
> \stoptext
> 
> Wolfgang

Thanks, that looks really nice, but somehow it doesn't work with my url:
http://chart.apis.google.com/chart?chs=350x220&cht=p3&chd=s:G99p&chdl=2|1|1|6|2|0|52|52|2|2|1|1|2|2|2|2|2|1|1|2|2|1|1|1|2|1|1&chdlp=b&chp=0.1&chl=fsharp|gettext|gettext-base|Others%20%2824%29&chma=95,95&chtt=Launchpad+Statistics+for+%7Ereviczky+-+ppa&chts=676767,13.5

and I can't really figure out why ...

Adam
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Re: Google Chart URL

[Wolfgang Schuster]

Am 19.04.2011 um 03:05 schrieb Reviczky, Adam:

> Thanks, that looks really nice, but somehow it doesn't work with my url:
> http://chart.apis.google.com/chart?chs=350x220&cht=p3&chd=s:G99p&chdl=2|1|1|6|2|0|52|52|2|2|1|1|2|2|2|2|2|1|1|2|2|1|1|1|2|1|1&chdlp=b&chp=0.1&chl=fsharp|gettext|gettext-base|Others%20%2824%29&chma=95,95&chtt=Launchpad+Statistics+for+%7Ereviczky+-+ppa&chts=676767,13.5
> 
> and I can't really figure out why ...

Do you have “\enabledirectives[schemes.cleanmethod=md5]” in your preamble?

Here is a complete example which works for me:

\enabledirectives[schemes.cleanmethod=md5]

\def\googlechart
 {\begingroup
  \setcatcodetable\vrbcatcodes
  \dodoubleempty\dogooglechart}

\def\dogooglechart[#1][#2]%
 {\endgroup
  \externalfigure[#1][method=png,#2]}

\starttext
\googlechart[http://chart.apis.google.com/chart?chs=350x220&cht=p3&chd=s:G99p&chdl=2|1|1|6|2|0|52|52|2|2|1|1|2|2|2|2|2|1|1|2|2|1|1|1|2|1|1&chdlp=b&chp=0.1&chl=fsharp|gettext|gettext-base|Others%20%2824%29&chma=95,95&chtt=Launchpad+Statistics+for+%7Ereviczky+-+ppa&chts=676767,13.5][factor=max]
\stoptext

Wolfgang

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Re: Google Chart URL

[Reviczky, Adam]

> Do you have “\enabledirectives[schemes.cleanmethod=md5]” in your preamble?
Silly me, I've forgot that.

Thanks again for your help!

Adam
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Re: Google Chart URL

[Wolfgang Schuster]

Am 16.04.2011 um 21:49 schrieb Aditya Mahajan:

> On Sat, 16 Apr 2011, Reviczky, Adam wrote:
> 
>> Hmm
>> 
>> I still have some problems with this. How would it look like for this URL?
>> I've tried asciimode and \letterbar + \letterpercent, but no luck.
>> 
>> http://chart.apis.google.com/chart?chs=350x220&cht=p3&chd=s:G99p&chdl=2|1|1|6|2|0|52|52|2|2|1|1|2|2|2|2|2|1|1|2|2|1|1|1|2|1|1&chdlp=b&chp=0.1&chl=fsharp|gettext|gettext-base|Others%20%2824%29&chma=95,95&chtt=Launchpad+Statistics+for+%7Ereviczky+-+ppa&chts=676767,13.5
> 
> \enabletrackers [resolvers.schemes]
> \enabledirectives[schemes.cleanmethod=md5]
> \asciimode

\asciimode can be overkill because it makes also “%” a normal character, better you define a command which change the catcodes.

\def\googlechart
  {\begingroup
   \setcatcodetable\vrbcatcodes
   \dodoubleempty\dogooglechart}

\def\dogooglechart[#1][#2]%
  {\endgroup
   \externalfigure[#1][method=png,#2]}

\starttext
\googlechart[https://chart.googleapis.com/chart?cht=p3&chs=250x100&chd=t:60,40&chl=Hello|World]
\stoptext

Wolfgang

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Re: Google Chart URL

[mathew]

On Sat, Apr 16, 2011 at 13:31, Reviczky, Adam <adam.reviczky@kcl.ac.uk> wrote:
> ! Undefined control sequence.
> system          > tex > error on line 3 in file test.tex: Undefined control sequence ...
>
> as far as I can tell it's the "|" symbol where it has problems.

The | symbol is not allowed unescaped in URLs. As per RFC 3986 section
2.2, the reserved delimiters are:

      reserved    = gen-delims / sub-delims

      gen-delims  = ":" / "/" / "?" / "#" / "[" / "]" / "@"

      sub-delims  = "!" / "$" / "&" / "'" / "(" / ")"
                  / "*" / "+" / "," / ";" / "="

and as per section 2.3, the unreserved characters are:

unreserved  = ALPHA / DIGIT / "-" / "." / "_" / "~"

Everything else needs to be %-encoded. If your browser isn't doing so,
you'll need to do it manually.


mathew
-- 
<URL:http://www.pobox.com/~meta/>
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Re: Google Chart URL

[Aditya Mahajan]

On Sat, 16 Apr 2011, Reviczky, Adam wrote:

> Hmm
>
> I still have some problems with this. How would it look like for this URL?
> I've tried asciimode and \letterbar + \letterpercent, but no luck.
>
> http://chart.apis.google.com/chart?chs=350x220&cht=p3&chd=s:G99p&chdl=2|1|1|6|2|0|52|52|2|2|1|1|2|2|2|2|2|1|1|2|2|1|1|1|2|1|1&chdlp=b&chp=0.1&chl=fsharp|gettext|gettext-base|Others%20%2824%29&chma=95,95&chtt=Launchpad+Statistics+for+%7Ereviczky+-+ppa&chts=676767,13.5

\enabletrackers [resolvers.schemes]
\enabledirectives[schemes.cleanmethod=md5]
\asciimode
\starttext
% Single line
\externalfigure[http://chart.apis.google.com/chart?chs=350x220&cht=p3&chd=s:G99p&chdl=2|1|1|6|2|0|52|52|2|2|1|1|2|2|2|2|2|1|1|2|2|1|1|1|2|1|1&chdlp=b&chp=0.1&chl=fsharp|gettext|gettext-base|Others\letterpercent 
20\letterpercent 2824\letterpercent 
29&chma=95,95&chtt=Launchpad+Statistics+for+\letterpercent 
7Ereviczky+-+ppa&chts=676767,13.5][method=png,scale=5000]
\stoptext

See 
http://archive.contextgarden.net/message/20110123.205431.42f006d4.en.html 
for details.

I had also added support for downloading external files in the filter 
module 
http://randomdeterminism.wordpress.com/2010/08/12/using-filters-outside-the-box/
but later decided to make a separate module for it (not yet released). I 
can send you some files offlist if you are interested.

Adita
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Re: Google Chart URL

[Reviczky, Adam]

Hmm

I still have some problems with this. How would it look like for this URL?
I've tried asciimode and \letterbar + \letterpercent, but no luck.

http://chart.apis.google.com/chart?chs=350x220&cht=p3&chd=s:G99p&chdl=2|1|1|6|2|0|52|52|2|2|1|1|2|2|2|2|2|1|1|2|2|1|1|1|2|1|1&chdlp=b&chp=0.1&chl=fsharp|gettext|gettext-base|Others%20%2824%29&chma=95,95&chtt=Launchpad+Statistics+for+%7Ereviczky+-+ppa&chts=676767,13.5

Thanks
Adam
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Re: Google Chart URL

[Aditya Mahajan]

On Sat, 16 Apr 2011, Wolfgang Schuster wrote:

>
> Am 16.04.2011 um 20:31 schrieb Reviczky, Adam:
>
>> Hi
>>
>> I have problems with special characters in URL's.
>> What I wanted at first place, is embedding a google chart image, so I've tried this:
>>
>> \starttext
>> \externalfigure[{https://chart.googleapis.com/chart?cht=p3&chs=250x100&chd=t:60,40&chl=Hello|World}]
>> \stoptext
>>
>> which fails with:
>> ! Undefined control sequence.
>> system          > tex > error on line 3 in file test.tex: Undefined control sequence ...
>>
>> as far as I can tell it's the "|" symbol where it has problems.
>
> \starttext
> \externalfigure[https://chart.googleapis.com/chart?cht=p3&chs=250x100&chd=t:60,40&chl=Hello\letterbar World][method=png,scale=4000]
> \stoptext

Or better

\asciimode
\starttext
\externalfigure[https://chart.googleapis.com/chart?cht=p3&chs=250x100&chd=t:60,40&chl=Hello|World][method=png]
\stoptext

Aditya
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Re: Google Chart URL

[Reviczky, Adam]

> \starttext
> \externalfigure[https://chart.googleapis.com/chart?cht=p3&chs=250x100&chd=t:60,40&chl=Hello\letterbar World][method=png,scale=4000]
> \stoptext
> 
> Wolfgang

Thank you very much.

Adam
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Re: Google Chart URL

[Wolfgang Schuster]

Am 16.04.2011 um 20:31 schrieb Reviczky, Adam:

> Hi
> 
> I have problems with special characters in URL's.
> What I wanted at first place, is embedding a google chart image, so I've tried this:
> 
> \starttext
> \externalfigure[{https://chart.googleapis.com/chart?cht=p3&chs=250x100&chd=t:60,40&chl=Hello|World}]
> \stoptext
> 
> which fails with:
> ! Undefined control sequence.
> system          > tex > error on line 3 in file test.tex: Undefined control sequence ...
> 
> as far as I can tell it's the "|" symbol where it has problems.

\starttext
\externalfigure[https://chart.googleapis.com/chart?cht=p3&chs=250x100&chd=t:60,40&chl=Hello\letterbar World][method=png,scale=4000]
\stoptext

Wolfgang

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Google Chart URL

[Reviczky, Adam]

Hi

I have problems with special characters in URL's.
What I wanted at first place, is embedding a google chart image, so I've tried this:

\starttext
\externalfigure[{https://chart.googleapis.com/chart?cht=p3&chs=250x100&chd=t:60,40&chl=Hello|World}]
\stoptext

which fails with:
! Undefined control sequence.
system          > tex > error on line 3 in file test.tex: Undefined control sequence ...

as far as I can tell it's the "|" symbol where it has problems.

I came across this thread:
http://www.mail-archive.com/ntg-context@ntg.nl/msg25806.html
but no solution there either.

Then I've tried to move from externalfigure to useURL, but the same problem exists.
For obvious reasons I don't want to use url shorteners, as with this kind of URL I can manipulate the resulting image inside the tex source.

Any thoughts or solutions?

Adam
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