On 2014-08-14 00:26, Wolfgang Schuster wrote:
Am 13.08.2014 um 20:56 schrieb Rik Kabel <cont...@rik.users.panix.com
<mailto:cont...@rik.users.panix.com>>:
Dear list,
In a number of notes (recent and in the list archive) I have seen
\resetsetups, used (always) as in a block of code like this from
Gerben Wierde:
\startsetups chapter:before
\page[left]
\noheaderandfooterlines
\startalignment[left,nothyphenated]
\startnarrower[4*left]
\em \getbuffer[chapter:quote]
\stopnarrower
\stopalignment
\resetsetups[quote:text]
\page[right]
\noheaderandfooterlines
\blank[force,2*big]
\stopsetups
What is the purpose of \resetsetups in this code? I see no different
result without it, and all I can determine from list and document
searches is that this is a vestigal command from x-fo processing.
With the \resetsetups command you can remove a previously created
setups environment. As you can see from the following example
“mysetups” doesn’t exist anymore after the \resetsetups command.
\startsetups[mysetups]
Dummy text.
\stopsetups
\starttext
\doifsetupselse{mysetups}{YES}{NO}
\resetsetups[mysetups]
\doifsetupselse{mysetups}{YES}{NO}
\stoptext
Wolfgang
Thank you again, Wolfgang.
I notice that, while the _contents_ of the setup are removed, and using
the reset setup introduces nothing into the text, there is no error or
warning generated. (This is also the case, I learned, with an undefined
buffer.) I can see that this can be very useful in a number of situations.
Can \resetsetups reset more than one setup in a single execution? When I
try \resetsetups[setupA,setupB] it appears to reset neither. I only ask
because of the plural name. It does not appear to be a burden to use
multiple \resetsetups commands.
Are there equivalent commands to \resetsetups and \doifsetupelse for
buffers? I could find nothing obvious.
The following example shows what I mean by the above statements. My
examples are often clearer than my descriptions.
\starttext
\subject{test 1}
\startsetups[mysetups]
YES
\stopsetups
1. \doifsetupselse{mysetups}{\setup[mysetups]}{NO}
\resetsetups[mysetups]
2. \doifsetupselse{mysetups}{\setup[mysetups]}{NO}
\startsetups[mysetups]
yes
\stopsetups
3. \doifsetupselse{mysetups}{\setup[mysetups]}{NO}
\subject{test 2}
\startsetups[mysetups]
YES
\resetsetups[mysetups]
\stopsetups
1. \doifsetupselse{mysetups}{\setup[mysetups]}{NO}
2. \doifsetupselse{mysetups}{\setup[mysetups]}{NO}
\startsetups[mysetups]
yes
\resetsetups[mysetups]
\stopsetups
3. \doifsetupselse{mysetups}{\setup[mysetups]}{NO}
\subject{test 3}
\startsetups[mysetups]
YES
\stopsetups
1. ¦\setup[mysetups]¦
\resetsetups[mysetups]
2. ¦\setup[mysetups]¦
\startsetups[mysetups]
yes
\stopsetups
3. ¦\setup[mysetups]¦
\subject{test 4}
\startsetups[mysetups]
YES
\resetsetups[mysetups]
\stopsetups
1. ¦\setup[mysetups]¦
2. ¦\setup[mysetups]¦
\startsetups[mysetups]
yes
\resetsetups[mysetups]
\stopsetups
3. ¦\setup[mysetups]¦
\subject{test 5}
1. ¦\setup[neverdefined]¦
2. ¦\getbuffer[neverdefined]¦
\subject{test 6}
\startsetups[mysetupstwo]
, SIR!
\stopsetups
\startsetups[mysetups]
YES
\stopsetups
1. ¦\setup[mysetups]\setup[mysetupstwo]¦
\resetsetups[mysetups,mysetupstwo]
2. ¦\setup[mysetups]\setup[mysetupstwo]¦
\stoptext
--
Rik Kabel
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