Re: [NTG-context] How to check if buffer or block has content
Wow, that's powerful! I'll add the wiki entries later tonight. Thanks a lot! > On Aug 3, 2021, at 17:02, Hans Hagen wrote: > > On 8/2/2021 8:54 PM, Benjamin Buchmuller via ntg-context wrote: >> That's great, I wikified a Note for testing if a buffer exists or has >> content (using the \getbuffer[…] approach for the moment). >> If I was asked, I'd opt for \doifelseemptybuffer (doifemptyelse?) since one >> could think of similar commands that test for empty "objects". >> Is there an option for testing blocks? (I actually use blocks quite >> frequently …) >> I just realized they are probably handled very differently during the >> typesetting. Basically I would just need to test if during the first run any >> of \beginBLOCK … \endBLOCK was invoked (but if one gets a test for some >> content in-between that's even better). >> As an alternative solution, is there a way to add content to buffers? >> Unfortunately, I can't use \getbuffer[first,second], but >> \startbuffer[first][add=yes] … \stopbuffer would be nice. > just for fun I made this: > > \starttext > > \startbuffer[test] >test > \stopbuffer > > \startbuffer[oeps] >oeps > \stopbuffer > > \typebuffer[test] \getbuffer[test] > > \startbuffer[test = * + test] >prepend > \stopbuffer > > \typebuffer[test] \getbuffer[test] > > \startbuffer[test = test + *] >append > \stopbuffer > > \typebuffer[test] \getbuffer[test] > > \startbuffer[test = * +++ test] >before > \stopbuffer > > \typebuffer[test] \getbuffer[test] > > \startbuffer[test = test +++ *] >after > \stopbuffer > > \typebuffer[test] \getbuffer[test] > > \startbuffer[test = * + oeps + test + oeps + * ] >DONE > \stopbuffer > > \typebuffer[test] \getbuffer[test] > > \stoptext > > which results in > > test > test > prependtest > prependtest > prependtestappend > prependtestappend > before > prependtestappend > before > prependtestappend > before > prependtestappend > after > before > prependtestappend > after > DONEoepsbefore > prependtestappend > afteroepsDONE > DONEoepsbefore > prependtestappend > afteroepsDONE > > so basically one can combine buffers any way > > + : nothing in between > ++ : space in between > +++ : empty line in between > > > - > Hans Hagen | PRAGMA ADE > Ridderstraat 27 | 8061 GH Hasselt | The Netherlands > tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl > - ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___
[NTG-context] issue with signature fields in Acrobat
Hi Hans,
I have the following sample:
\setupinteraction[state=start]
\starttext
\startTEXpage[offset=2em]
\setupfield[ShortLine][horizontal][width=5cm,height=5em]
\definefield [Email] [signature] [ShortLine]
\field [Email] [your email]
\stopTEXpage
\stoptext
If I sign it with Acrobat Reader, Times New Roman is used instead of
MyriadPro (which is the default font used by Acrobat for signing).
Line 945 from lpdf-fld.lmt contains:
if #collected > 0 then
local acroform = pdfdictionary {
NeedAppearances = pdfmajorversion() == 1 or nil,
Fields = pdfreference(pdfflushobject(collected)),
CO = fieldsetlist(calculationset),
}
if sometext or somefont then
checkpdfdocencoding()
if sometext then
usedfonts.tttf = fontnames.tt.tf
acroform.DA = "/tttf 12 Tf 0 g"
end
acroform.DR = pdfdictionary {
Font = registerfonts(),
Encoding = pdfdocencodingcapsule,
}
end
lpdf.addtocatalog("AcroForm",pdfreference(pdfflushobject(acroform)))
end
Would it be possible that the second conditional ("if sometext or
somefont") could be only applied if Fields doesn’t refer to signatures?
Otherwise, Acrobat will use the font specified in the dictionary. Among
other things, this breaks PDF/A documents, since the font for the
signature isn’t embedded.
Many thanks for your help,
Pablo
--
http://www.ousia.tk
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Re: [NTG-context] How to check if buffer or block has content
On 8/2/2021 8:54 PM, Benjamin Buchmuller via ntg-context wrote: That's great, I wikified a Note for testing if a buffer exists or has content (using the \getbuffer[…] approach for the moment). If I was asked, I'd opt for \doifelseemptybuffer (doifemptyelse?) since one could think of similar commands that test for empty "objects". Is there an option for testing blocks? (I actually use blocks quite frequently …) I just realized they are probably handled very differently during the typesetting. Basically I would just need to test if during the first run any of \beginBLOCK … \endBLOCK was invoked (but if one gets a test for some content in-between that's even better). As an alternative solution, is there a way to add content to buffers? Unfortunately, I can't use \getbuffer[first,second], but \startbuffer[first][add=yes] … \stopbuffer would be nice. just for fun I made this: \starttext \startbuffer[test] test \stopbuffer \startbuffer[oeps] oeps \stopbuffer \typebuffer[test] \getbuffer[test] \startbuffer[test = * + test] prepend \stopbuffer \typebuffer[test] \getbuffer[test] \startbuffer[test = test + *] append \stopbuffer \typebuffer[test] \getbuffer[test] \startbuffer[test = * +++ test] before \stopbuffer \typebuffer[test] \getbuffer[test] \startbuffer[test = test +++ *] after \stopbuffer \typebuffer[test] \getbuffer[test] \startbuffer[test = * + oeps + test + oeps + * ] DONE \stopbuffer \typebuffer[test] \getbuffer[test] \stoptext which results in test test prependtest prependtest prependtestappend prependtestappend before prependtestappend before prependtestappend before prependtestappend after before prependtestappend after DONEoepsbefore prependtestappend afteroepsDONE DONEoepsbefore prependtestappend afteroepsDONE so basically one can combine buffers any way + : nothing in between ++ : space in between +++ : empty line in between - Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl - ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___
Re: [NTG-context] How to check if buffer or block has content
On 8/2/2021 8:54 PM, Benjamin Buchmuller via ntg-context wrote:
That's great, I wikified a Note for testing if a buffer exists or has content
(using the \getbuffer[…] approach for the moment).
If I was asked, I'd opt for \doifelseemptybuffer (doifemptyelse?) since one could think
of similar commands that test for empty "objects".
Is there an option for testing blocks? (I actually use blocks quite frequently
…)
I just realized they are probably handled very differently during the
typesetting. Basically I would just need to test if during the first run any of
\beginBLOCK … \endBLOCK was invoked (but if one gets a test for some content
in-between that's even better)
indeed, multiple axis ... so then we need three arguments instead of one
for the test
\defineblock[testa]
\defineblock[testb]
\starttext
\begintesta
oeps
\endtesta
\doifelseblocksempty {testa}{}{} {YES} {NOP} % {name}{tag}{criterium}
\doifelseblocksempty {testb}{}{} {YES} {NOP} % {name}{tag}{criterium}
\stoptext
but you have to wikify it
Hans
-
Hans Hagen | PRAGMA ADE
Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-
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Re: [NTG-context] How to check if buffer or block has content
On 8/2/2021 6:31 PM, Wolfgang Schuster via ntg-context wrote: \doifelsebufferempty i go for that one (mkiv and lmtx0 ; btw, \doifelsebuffer is expandable but the empty test not) Hans - Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl - ___ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___
