Difference between revisions of "Command/definebreakpoint"

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An illustration of a custom breakpoint of type 5:
 
An illustration of a custom breakpoint of type 5:
<texcode>
+
<context source="yes">
 
\definebreakpoints[test]
 
\definebreakpoints[test]
  
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xxxx?xxxx?xxxx?xxxx?xxxx?xxxx?xxxx?xxxx\par
 
xxxx?xxxx?xxxx?xxxx?xxxx?xxxx?xxxx?xxxx\par
 
\stoptext
 
\stoptext
</texcode>
+
</context>
  
 
== See also ==
 
== See also ==

Revision as of 15:42, 22 March 2019

\definebreakpoint

Syntax

\definebreakpoint[...][...][...=...]
[...] name of breakpoint set to add to
[...] character at which to break
language two-letter code: language for which this breakpoint applies
nleft number: minimal characters to left to allow breaking' here'
nright number: minimal characters to right to allow breaking here
type
1 ...1...1 / ... place breaking character before linebreak
2 ...2... / 2-... place breaking character after linebreak, hyphen inside it. (Used if a break happens before the parenthesised part of a word.)
3 ...3...-3 / ... place breaking character before linebreak, hyphen inside it. (Used if a break happens after the parenthesised part of a word.)
4 ...4...4 / 4... place breaking character on both sides of linebreak
5 specify pattern with left, middle, and right.
middle 'how breaking character should display when no break takes place. Used in combination with {{{1}}}.
left how breaking character should display at break, at end of first line. Used in combination with {{{1}}}.
right how breaking character should display at break, at start of second line. Used in combination with {{{1}}}.

Description

\definebreakpoint[setname][?][...=...] defines a breakpoint at ?, and makes it a member of a set that can be activated with \setbreakpoints[setname]. The set must be initialized with \definebreakpoints[setname].

Example

This is how the compound breakpoint set is defined in typo-brk.mkiv

\definebreakpoint [compound] [+] [nleft=3,nright=3,type=1]
\definebreakpoint [compound] [-] [nleft=3,nright=3,type=1]
\definebreakpoint [compound] [/] [nleft=3,nright=3,type=1]
\definebreakpoint [compound] [(] [nleft=3,nright=3,type=2]
\definebreakpoint [compound] [)] [nleft=3,nright=3,type=3]

An illustration of a custom breakpoint of type 5:

\definebreakpoints[test]

\definebreakpoint [test] [?] [type=5,left=L,right=R,middle=M]

\setbreakpoints[test]

\setuppapersize[A7]

\starttext \showframe
xxxx?xxxx?xxxx?xxxx?xxxx?xxxx?xxxx?xxxx\par
\stoptext

See also

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