Re: [NTG-context] counting characters when dealing with XML

20 Jan 2015


      On 1/20/2015 8:50 PM, Pablo Rodriguez wrote:
...
Dear list,
I have a question when dealing with XML.
Is there any way to write a conditional based on the number of
characters in a given field?
I mean, the following field:
\xmltext{#1}{h1[@class='subtitle']}
If subtitle > 60 chars, then fontsize = 10pt.
If subtitle > 50 chars, then fontsize = 12pt.
If subtitle > 40 chars, then fontsize = 14pt.
If subtitle > 30 chars, then fontsize = 16pt.
How could I write these conditionals?
let tex do the work .. counting is not accurate for this anyway

\starttexdefinition AutoFontSize #1
     \begingroup
         \setbox\scratchbox\hbox{#1}
         \normalexpanded {
             \definedfont[Regular*default at
                 \ifdim\wd\scratchbox>30em 10pt\else
                 \ifdim\wd\scratchbox>25em 12pt\else
                 \ifdim\wd\scratchbox>20em 14pt\else
                 \ifdim\wd\scratchbox>15em 16pt\fi\fi\fi\fi
             ]
         }
         #1
     \endgroup
\stoptexdefinition

\starttext
     \dostepwiserecurse{30}{80}{2}{\AutoFontSize{\dorecurse{#1}{x}}\par}
\stoptext


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