Re: [NTG-context] Hyphenation of URLs with and without interaction
Hello Mathias,
your question forwarded by Tobias Burnus has been discussd a couple of
days ago on this list. I send you the reply given by Hans Hagen:
At 11:59 23/01/2004, you wrote:
Hello,
If you run the test case below, once with and once without
\statupinteraction[state=start], you realize that this influences the
hyphenation.
Using interaction, the URL is only hyphenated at '/', '.' etc.
Using no interaction, also the words are hyphenated.
How can I get also hyphenated words with interaction enabled?
---
\showframe
\setupinteraction[state=start]
\def\gotoURL#1{\useURL[foo][#1]\goto{\url[foo]}[url(foo)]}
\starttext
\hskip5cm\gotoURL{http://www.physik.fu-berlin.de/SomeVeryVeryVeryLongDirectory/And/AQuiteLongFileName.html}
\stoptext
---
in context, hyphenation of interactive references is a rather tricky thing;
this has to do with the fact that i want comfortable clickable areas.
(another reason is that it should work with several backends. Some day i
may offer an alternative solution (backend dependent).
In the case of url's it's even more tricky since one cannot for instance
use hyphenation patterns for it, so we have to rely on parsing. And, with
parsing, we run into those catcode handling situations. When i have time,
i'll rewrite the parser for etex (time is near that we drop tex in favor of
etex) which is cleaner (but not entirely upward compatible).
Now to your problem. Hyphenation is not done here and does not make sense
either (mixed case)
\bgroup \catcode`\~=\active \catcode`\/=\active
\unexpanded\gdef\hyphenatedurl#1% {}{} handles accents
{\bgroup
\ifnum\hyphenpenalty<1 \else
\def\discretionary##1##2##3{##1\allowbreak##2}%
\fi
\obeyhyphens
\def\splitbefore##1%
{\setbox\scratchbox=\hbox{##1{}{}}%
\ifcase\urlsplitmode
\box\scratchbox
\or
\postwordbreak\box\scratchbox\prewordbreak
\or
\prewordbreak\discretionary{\box\scratchbox}{}{\box\scratchbox}\prewordbreak
\else
\postwordbreak\box\scratchbox\prewordbreak
\fi}%
\def\splitafter##1%
{\ifcase\urlsplitmode
##1{}{}%
\or
\prewordbreak\discretionary{##1{}{}}{}{##1{}{}}\prewordbreak
\or
\prewordbreak\discretionary{##1{}{}}{}{##1{}{}}\prewordbreak
\else
\prewordbreak\discretionary{}{##1{}{}}{##1{}{}}\prewordbreak
\fi}%
\def\flushurl%
{\savedurl\let\savedurl\empty}%
\def\\%
{\spliturl\#}%
\let\~=\lettertilde\let~=\~%
\let\/=\letterslash\let/=\/%
\let\savedurl\empty
\scratchcounter\zerocount
\handletokens#1\with\scanurl\savedurl
\egroup}
\egroup
\def\scanurl#1%
{\advance\scratchcounter\plusone
\ifx#1\~%
\flushurl\splitbefore\~%
\else\ifx#1\#%
\flushurl\splitbefore\#%
\else\ifx#1\&%
\flushurl\splitbefore\&%
\else\ifx#1\%%
\flushurl\splitbefore\%%
\else\ifx#1\_%
\flushurl\splitbefore\_%
\else\if\noexpand#1\relax
#1%
\else\ifnum\catcode`#1=8
\flushurl\splitbefore\_%
\else\ifnum\catcode`#1=6
\flushurl\splitbefore\#%
\else\ifnum\catcode`#1=4
\flushurl\splitbefore\&%
\else\if#1\lettertilde
\flushurl\splitbefore\~%
\else\if#1\letterpercent
\flushurl\splitbefore\%%
\else\if#1\letterunderscore
\flushurl\splitbefore\_%
\else\if#1\letterquestionmark
\flushurl\splitafter\letterquestionmark
\else\if#1\letterat
\flushurl\splitafter\letterat
\else\if#1\letterslash
\edef\savedurl{\savedurl\letterslash}%
\else\if#1+%
\flushurl\splitafter+%
\else\if#1:%
\flushurl\splitafter:%
\else\if#1.%
\flushurl\splitafter.%
\else\if#1(%
\flushurl\splitbefore(%
\else\if#1)%
\flushurl\splitafter)%
\else
\ifx\savedurl\empty\else
\splitbefore\savedurl
\let\savedurl\empty
\fi
\ifcase\urlhyphenmethod
#1%
\else
\ifnum\scratchcounter>\plusthree % so, \http: will not break
\edef\savedurl{#1}%
\else
#1%
\fi
\fi
\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi}
\chardef\urlhyphenmethod=0
\setupinteraction[state=start]\showframe
\def\gotoURL#1{\useURL[foo][#1][#1]\goto{\url[foo]}[url(foo)]}
\starttext
\chardef\urlhyphenmethod=0
\hsize1pt\gotoURL{http://www.physik.fu-berlin.de/SomeVeryVeryVeryLongDirectory/And/AQuiteLongFileName.html}
\chardef\urlhyphenmethod=1
\hsize1pt\gotoURL{http://www.physik.fu-berlin.de/SomeVeryVeryVeryLongDirectory/And/AQuiteLongFileName.html}
\stoptext
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Re: [NTG-context] Hyphenation of URLs with and without interaction
Hello, On Sun, Jan 25, 2004 at 02:30:11PM +0100, Hans Hagen wrote: > in context, hyphenation of interactive references is a rather tricky thing; > this has to do with the fact that i want comfortable clickable areas. > (another reason is that it should work with several backends. Some day i > may offer an alternative solution (backend dependent). Well, with your code I now can work around one since hyphenation problem, which allows me to add some hyperlinks to a document which is mainly intended for print out. The only minor glitch for a single URL is instead of 'Cylindric- alCoordinates.html', I get not 'Cylindr icalCoordinates.html', but this is better than being cut at the edge of the page. :-) Thanks for the fast solution. Hmm, maybe the first one will be \urlhyphenmethod=2 ;) Regards, Tobias ___ ntg-context mailing list [EMAIL PROTECTED] http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] Hyphenation of URLs with and without interaction
At 11:59 23/01/2004, you wrote:
Hello,
If you run the test case below, once with and once without
\statupinteraction[state=start], you realize that this influences the
hyphenation.
Using interaction, the URL is only hyphenated at '/', '.' etc.
Using no interaction, also the words are hyphenated.
How can I get also hyphenated words with interaction enabled?
---
\showframe
\setupinteraction[state=start]
\def\gotoURL#1{\useURL[foo][#1]\goto{\url[foo]}[url(foo)]}
\starttext
\hskip5cm\gotoURL{http://www.physik.fu-berlin.de/SomeVeryVeryVeryLongDirectory/And/AQuiteLongFileName.html}
\stoptext
---
in context, hyphenation of interactive references is a rather tricky thing;
this has to do with the fact that i want comfortable clickable areas.
(another reason is that it should work with several backends. Some day i
may offer an alternative solution (backend dependent).
In the case of url's it's even more tricky since one cannot for instance
use hyphenation patterns for it, so we have to rely on parsing. And, with
parsing, we run into those catcode handling situations. When i have time,
i'll rewrite the parser for etex (time is near that we drop tex in favor of
etex) which is cleaner (but not entirely upward compatible).
Now to your problem. Hyphenation is not done here and does not make sense
either (mixed case)
\bgroup \catcode`\~=\active \catcode`\/=\active
\unexpanded\gdef\hyphenatedurl#1% {}{} handles accents
{\bgroup
\ifnum\hyphenpenalty<1 \else
\def\discretionary##1##2##3{##1\allowbreak##2}%
\fi
\obeyhyphens
\def\splitbefore##1%
{\setbox\scratchbox=\hbox{##1{}{}}%
\ifcase\urlsplitmode
\box\scratchbox
\or
\postwordbreak\box\scratchbox\prewordbreak
\or
\prewordbreak\discretionary{\box\scratchbox}{}{\box\scratchbox}\prewordbreak
\else
\postwordbreak\box\scratchbox\prewordbreak
\fi}%
\def\splitafter##1%
{\ifcase\urlsplitmode
##1{}{}%
\or
\prewordbreak\discretionary{##1{}{}}{}{##1{}{}}\prewordbreak
\or
\prewordbreak\discretionary{##1{}{}}{}{##1{}{}}\prewordbreak
\else
\prewordbreak\discretionary{}{##1{}{}}{##1{}{}}\prewordbreak
\fi}%
\def\flushurl%
{\savedurl\let\savedurl\empty}%
\def\\%
{\spliturl\#}%
\let\~=\lettertilde\let~=\~%
\let\/=\letterslash\let/=\/%
\let\savedurl\empty
\scratchcounter\zerocount
\handletokens#1\with\scanurl\savedurl
\egroup}
\egroup
\def\scanurl#1%
{\advance\scratchcounter\plusone
\ifx#1\~%
\flushurl\splitbefore\~%
\else\ifx#1\#%
\flushurl\splitbefore\#%
\else\ifx#1\&%
\flushurl\splitbefore\&%
\else\ifx#1\%%
\flushurl\splitbefore\%%
\else\ifx#1\_%
\flushurl\splitbefore\_%
\else\if\noexpand#1\relax
#1%
\else\ifnum\catcode`#1=8
\flushurl\splitbefore\_%
\else\ifnum\catcode`#1=6
\flushurl\splitbefore\#%
\else\ifnum\catcode`#1=4
\flushurl\splitbefore\&%
\else\if#1\lettertilde
\flushurl\splitbefore\~%
\else\if#1\letterpercent
\flushurl\splitbefore\%%
\else\if#1\letterunderscore
\flushurl\splitbefore\_%
\else\if#1\letterquestionmark
\flushurl\splitafter\letterquestionmark
\else\if#1\letterat
\flushurl\splitafter\letterat
\else\if#1\letterslash
\edef\savedurl{\savedurl\letterslash}%
\else\if#1+%
\flushurl\splitafter+%
\else\if#1:%
\flushurl\splitafter:%
\else\if#1.%
\flushurl\splitafter.%
\else\if#1(%
\flushurl\splitbefore(%
\else\if#1)%
\flushurl\splitafter)%
\else
\ifx\savedurl\empty\else
\splitbefore\savedurl
\let\savedurl\empty
\fi
\ifcase\urlhyphenmethod
#1%
\else
\ifnum\scratchcounter>\plusthree % so, \http: will not break
\edef\savedurl{#1}%
\else
#1%
\fi
\fi
\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi}
\chardef\urlhyphenmethod=0
\setupinteraction[state=start]\showframe
\def\gotoURL#1{\useURL[foo][#1][#1]\goto{\url[foo]}[url(foo)]}
\starttext
\chardef\urlhyphenmethod=0
\hsize1pt\gotoURL{http://www.physik.fu-berlin.de/SomeVeryVeryVeryLongDirectory/And/AQuiteLongFileName.html}
\chardef\urlhyphenmethod=1
\hsize1pt\gotoURL{http://www.physik.fu-berlin.de/SomeVeryVeryVeryLongDirectory/And/AQuiteLongFileName.html}
\stoptext
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[NTG-context] Hyphenation of URLs with and without interaction
Hello,
If you run the test case below, once with and once without
\statupinteraction[state=start], you realize that this influences the
hyphenation.
Using interaction, the URL is only hyphenated at '/', '.' etc.
Using no interaction, also the words are hyphenated.
How can I get also hyphenated words with interaction enabled?
---
\showframe
\setupinteraction[state=start]
\def\gotoURL#1{\useURL[foo][#1]\goto{\url[foo]}[url(foo)]}
\starttext
\hskip5cm\gotoURL{http://www.physik.fu-berlin.de/SomeVeryVeryVeryLongDirectory/And/AQuiteLongFileName.html}
\stoptext
---
Regards,
Tobias
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