Am 13.06.2011 um 14:19 schrieb luigi scarso:

On Mon, Jun 13, 2011 at 2:12 PM, Steffen Wolfrum wrote:

...

Hi,

say I have arbitrary string of alphanumeric characters:

\starttext

\showframe

9769387937933hhgiuiuziuziduzid93739837fhieuhifeuhfeiu39739837938398zfhfdkuhfiufhz398739837r98z379dihhfiu

\stoptext In mkiv make a lua script using gsub, i.e. something like s='9769387937933hhgiuiuziuziduzid93739837fhieuhifeuhfeiu39739837938398zfhfdkuhfiufhz398739837r98z379dihhfiu' s= string.gsub(s,'(.)',"%1\\hskip0sp")

\starttext \startluacode s='9769387937933hhgiuiuziuziduzid93739837fhieuhifeuhfeiu39739837938398zfhfdkuhfiufhz398739837r98z379dihhfiu' s= string.gsub(s..s..s,'(.)',"%1\\hskip0sp") context(s) \stopluacode \stoptext

... ok, compared to this solution it is for sure easier to manually add \crlf :o)) The background are hundreds of URL's, which are part of regular text ... now transformed in a complicated but working beast: \startbuffer[myurl:01]\catcode`\%=12 \catcode`\_=12 \catcode`\&=12 \catcode`\#=12\setupalign[line,block,hanging]\useURL[test][http://www.lfd.m-v.de/dschutz/beschlue/ent49.html#nr.5][][http://www.lfd.m-v.de/dschutz/beschlue/ent49.html#nr.5]\from[test]\removeunwantedspaces\stopbuffer\getbuffer[myurl:01] If I now again add your lines of luacode too, I go crazy :o) Is there no handy little context command that could just be pasted before the string, like the following? \useURL[...][...][][\ThisHelps 9769387937933hhgiuiuziuziduzid93739837fhieuhifeuhfeiu39739837938398zfhfdkuhfiufhz398739837r98z379dihhfiu] Steffen

Am 13.06.2011 um 14:25 schrieb Wolfgang Schuster:

Am 13.06.2011 um 14:12 schrieb Steffen Wolfrum:

...

Hi,

say I have arbitrary string of alphanumeric characters:

\starttext

\showframe

9769387937933hhgiuiuziuziduzid93739837fhieuhifeuhfeiu39739837938398zfhfdkuhfiufhz398739837r98z379dihhfiu

\stoptext

How can I (automatically) force a break at end of line, without manually adding \crlf or \break at break points?

\handletokens ...\with{\hskip 0pt plus .1pt\firstofoneargument}

Yes, this helps: \showframe \define[1]\ThisHelps {\handletokens#1\with{\hskip 0pt plus .1pt\firstofoneargument}} Test text test text\ThisHelps {9769387937933hhgiuiuziuziduzid93739837fhieuhifeuhfeiu39739837938398zfhfdkuhfiufhz398739837r98z379dihhfiu} \stoptext Thank you!! Steffen

Am 13.06.2011 um 15:40 schrieb luigi scarso:

On Mon, Jun 13, 2011 at 3:18 PM, Steffen Wolfrum wrote:

...

Am 13.06.2011 um 14:25 schrieb Wolfgang Schuster:

...

Am 13.06.2011 um 14:12 schrieb Steffen Wolfrum:

...

Hi,

say I have arbitrary string of alphanumeric characters:

\starttext

\showframe

9769387937933hhgiuiuziuziduzid93739837fhieuhifeuhfeiu39739837938398zfhfdkuhfiufhz398739837r98z379dihhfiu

\stoptext

How can I (automatically) force a break at end of line, without manually adding \crlf or \break at break points?

\handletokens ...\with{\hskip 0pt plus .1pt\firstofoneargument}

Yes, this helps:

\showframe

\define[1]\ThisHelps {\handletokens#1\with{\hskip 0pt plus .1pt\firstofoneargument}}

Test text test text\ThisHelps {9769387937933hhgiuiuziuziduzid93739837fhieuhifeuhfeiu39739837938398zfhfdkuhfiufhz398739837r98z379dihhfiu}

\stoptext

Thank you!!

Steffen

Where is the difference ?

\starttext

\showframe

\define[1]\ThisHelps {\handletokens#1\with{\hskip 0pt plus .1pt\firstofoneargument}}

Test text test text\ThisHelps {9769387937933hhgiuiuziuziduzid93739837fhieuhifeuhfeiu39739837938398zfhfdkuhfiufhz398739837r98z379dihhfiu}

\define[1]\ThisHelpsLuigi{% \startluacode s='#1' s= string.gsub(s,'(.)',"\%1\\hskip0sp") % maybe only some chars... %s= string.gsub(s,'[=/]',"\%1\\hskip0sp") context(s) \stopluacode}

Test text test text\ThisHelpsLuigi {9769387937933hhgiuiuziuziduzid93739837fhieuhifeuhfeiu39739837938398zfhfdkuhfiufhz398739837r98z379dihhfiu}

\stoptext

Just my "greenness" with luacode ... I didn't expect that it could be wrapped so easily in an handy \define command: context(s) is wrapped in start/stopluacode is wrapped in \define[1]\LuigiHelps{...} Endless possibilities ... great! Thank you very much for making this clear :o) Steffen

Am 13.06.2011 um 15:40 schrieb luigi scarso:

Where is the difference ?

The TeX solution is faster. \define[1]\ThisHelps {\handletokens#1\with{\hskip 0pt plus .1pt\firstofoneargument}} \define[1]\ThisHelpsLuigi {\startluacode s='#1' s= string.gsub(s,'(.)',"\%1\\hskip 0sp plus .1pt") context(s) \stopluacode} \showframe \starttext \testfeatureonce{10000}{\ThisHelps {abcde123xyz}}% \testfeatureonce{10000}{\ThisHelpsLuigi{abcde123xyz}} \stoptext Wolfgang

On 13-6-2011 3:58, Wolfgang Schuster wrote:

Am 13.06.2011 um 15:40 schrieb luigi scarso:

...

Where is the difference ?

The TeX solution is faster.

\define[1]\ThisHelps {\handletokens#1\with{\hskip 0pt plus .1pt\firstofoneargument}}

\define[1]\ThisHelpsLuigi {\startluacode s='#1' s= string.gsub(s,'(.)',"\%1\\hskip 0sp plus .1pt") context(s) \stopluacode}

\showframe

\starttext

\testfeatureonce{10000}{\ThisHelps {abcde123xyz}}% \testfeatureonce{10000}{\ThisHelpsLuigi{abcde123xyz}}

\stoptext

A few variants ... \startluacode local gsub = string.gsub function LuigiX(s) local s = gsub(s,'.',"\%1\\hskip 0sp plus .1pt") context(s) end local gmatch = string.gmatch function LuigiY(s) local LuigiYY = context.LuigiYY for s in gmatch(s,".") do LuigiYY(s) end end \stopluacode \def\ThisHelpsLuigiX#1{\ctxlua{LuigiX('#1')}} \def\ThisHelpsLuigiY#1{\ctxlua{LuigiY('#1')}} \def\LuigiYY#1{#1\hskip\zeropoint plus .1pt\relax} The disadvantage of the lua way is that for long strings we end up with a lot of data collected at the lua end that gets passed to tex. Normally this is no real problem. Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | voip: 087 875 68 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------