On 1/11/2022 8:50 PM, Gavin via ntg-context wrote:
Hello List,
I am making problem sets for a physics class. Solutions use the style defined
in the example below, and only appear if the “solution” mode is enabled. I am
struggling to get a vertical space for the solution which is the same whether
or not the solution is printed. Different problems require different amounts of
space, so this should be an argument or key-value.
In the example below, the first solution has the desired behavior. The second
solution has the syntax I’d like, but it doesn’t make the space without a
solution.
Any ideas would be welcome! I am still pretty new to ConTeXt, so I struggle
mixing things like the plain tex \vbox and ConTeXt \start…\stop concepts.
Thanks,
Gavin
\definemode[solution][yes] % yes to enable solutions, no to disable
\definebuffer [solution] % Captures solution in a buffer that isn't used
\startmode[solution] % If in solution mode, redefine
\startsolution...\stopsolution
\definedelimitedtext[solution][ % Solution italic and indented
spacebefore=medium,
spaceafter=medium,
style=\rm\it,
leftmargin=standard, % Indents block on the left
rightmargin=yes, % Indents block on the right
indentnext=no,
before=\vbox to 1in\bgroup,
after=\egroup,
]
\stopmode
\starttext
How many roads? (The 1-inch space below appears whether or not it contains a
solution.)
\vbox to 1in{%
\startsolution
42 roads.
\stopsolution
}
How much wood? (I would like to define solution so this to behaves like the
previous question.)
\startsolution[1in]
Alotta wood!
\stopsolution
No more questions.
\stoptext
a mix between big and low level
% \enablemode[solution]
\startmode[solution] % If in solution mode, redefine
\startsolution...\stopsolution
\definenarrower
[mysolution]
[before=\blank,
after=\blank]
\tolerant\protected\def\startsolution[#1]%
{\startmysolution
\it}
\protected\def\stopsolution
{\stopmysolution}
\stopmode
\startnotmode[solution] % If in solution mode, redefine
\startsolution...\stopsolution
\tolerant\protected\def\startsolution[#1]%
{\doifelsenothing{#1}{\blank[2.5cm]}{\blank[#1]}
\gobbleuntil\stopsolution}
\protected\def\stopsolution
{}
\stopnotmode
\starttext
How many roads? (The 1-inch space below appears whether or not it
contains a solution.)
\startsolution
42 roads.
\stopsolution
How much wood? (I would like to define solution so this to behaves like
the previous question.)
\startsolution[1in]
Alotta wood!
\stopsolution
No more questions.
\stoptext
much nicer is to use the blocks mechanism (but i need to check if we can
do the 2in there)
Hans
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Hans Hagen | PRAGMA ADE
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