... I probably found it (how easy!):

----
\definestartstop
  [Rek]
  
[before={\blank\setupnarrower[left=\parindent,right=\parindent]\startnarrower},
   after={\stopnarrower\blank},
   style=\em,
  ]
----

Best regards,

Lukas


On Fri, 23 Nov 2012 16:00:54 +0100, Procházka Lukáš Ing. - Pontex s. r. o. 
<l...@pontex.cz> wrote:

Hello,

I need to temporary narrow the width in which text is typeset, to get something 
like:

----
Sdflsdf  sjldfg sjfdg sjdfg sjdfg   <- Normal (first) paragraph (no-indent).
sf sjlfg sjdgfjsgfjsdf sgdf jsdgf
sdfg gjh.
    Lsdf  sjldfg sjfdg sjdfg sjdfg   <- Normal (other) paragraph (normal 
indent).
sf sjlfg sjdgfjsgfjsdf sgdf jsdgf
sdfg gjh.
                                     <- Blank line
   Sdfjhk  skjdhf kh skh fsk ks      <- Narrower (first) paragraph (no-indent);
   skfh  skf s ksk fk sf kh jhd         its width e.g. 0.8 * 
<width-of-the-normal-paragraph> (\textwidth)
   dfs fsdf.
     Fjhk  skjdhf kh skh fsk ks      <- Narrower (other) paragraph (normal 
indent).
   skfh  skf s ksk fk sf kh jhd
   dfs fsdf.
     Fjhk  skjdhf kh skh fsk ks
   skfh  skf s ksk fk sf kh jhd
   dfs fsdf.
                                     <- Blank line
   Sdkf sks dfks fhf skdhf kshfk j   <- Normal (next) paragraph (normal indent).
f sfh skfhs kfh skfh skf skdhfkdf
fks fshf shf skhfd ksdhfhks djiuo
dsdhf k.
    Lsdf  sjldfg sjfdg sjdfg sjdfg
sf sjlfg sjdgfjsgfjsdf sgdf jsdgf
sdfg gjh.
----

I tried to play somehow with \(setup)paragraph(s), but it seems the are 
intended for paragraph-side-by-side setting, like columns do.

Changing \pagelayout changes the whole page layout, whilst I need just to 
narrow some paragraphs.

Something like:

\defineSomethingLikeParagraph[MyPar][width=.8\textwidth,leftdistance=.1\textwidth,before=\blank,after=\blank,]

And later:

\startMyPar
   \input knuth
\stopMyPar

Is there something like that?

TIA.

Lukas




--
Ing. Lukáš Procházka [mailto:l...@pontex.cz]
Pontex s. r. o.      [mailto:pon...@pontex.cz] [http://www.pontex.cz]
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147 14 Praha 4

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Fax: +420 244 461 038

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