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Miguel de Benito 2013-05-27 08:34:04 +00:00
parent 0618020c71
commit ab14447924
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devel/format/stylesheet/prim-style-misc.en.tm
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<TeXmacs|1.0.4> <TeXmacs|1.0.7.19>
<style|tmdoc> <style|tmdoc>
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<tmdoc-title|Miscellaneous style-sheet primitives> <tmdoc-title|Miscellaneous style-sheet primitives>
<\explain> <\explain>
<explain-macro|extern|scheme-foo|arg-1|<with|mode|math|\<cdots\>>|arg-n><explain-synopsis|apply <explain-macro|extern|scheme-foo|arg-1|<math|\<cdots\>>|arg-n><explain-synopsis|apply
extern typesetting macro> extern typesetting macro>
<|explain> <|explain>
This primitive allows the user to implement macros in <value|scheme>. The This primitive allows the user to implement macros in <scheme>. The
primitive applies the <value|scheme> function or macro primitive applies the <scheme> function or macro <src-arg|scheme-foo> to
<src-arg|scheme-foo> to the arguments <src-arg|arg-1> until the arguments <src-arg|arg-1> until <src-arg|arg-n>. For instance, the
<src-arg|arg-n>. For instance, the code <inactive*|<extern|(lambda (name) code <inactive*|<extern|(lambda (name) `(concat "hi " ,name))|dude>>
`(concat "hi " ,name))|dude>> yields ``<extern|(lambda (name) `(concat yields ``<extern|(lambda (name) `(concat "hi " ,name))|dude>''.
"hi " ,name))|dude>''.
The arguments <src-arg|arg-1> until <src-arg|arg-n> are evaluated and The arguments <src-arg|arg-1> until <src-arg|arg-n> are evaluated and
then passed as trees to <src-arg|scheme-foo>. When defining a macro which then passed as trees to <src-arg|scheme-foo>. When defining a macro which
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It has been foreseen that the accessability of the macro arguments It has been foreseen that the accessability of the macro arguments
<src-arg|x> and <src-arg|y> is preserved for this kind of definitions. <src-arg|x> and <src-arg|y> is preserved for this kind of definitions.
However, since <TeXmacs> does not heuristically analyze your However, since <TeXmacs> does not heuristically analyze your <scheme>
<value|scheme> code, you will have to manually set the <abbr|D.R.D.> code, you will have to manually set the <abbr|D.R.D.> properties using
properties using <markup|drd-props>. <markup|drd-props>.
Notice also that the <value|scheme> function <src-arg|scheme-foo> should Notice also that the <scheme> function <src-arg|scheme-foo> should only
only rely on secure scheme functions (and not on functions like rely on secure scheme functions (and not on functions like
<verbatim|system> which may erase your hard disk). User implemented <verbatim|system> which may erase your hard disk). User implemented
<value|scheme> functions in plug-ins may be defined to be secure using <scheme> functions in plug-ins may be defined to be secure using the
the <verbatim|:secure> option. Alternatively, the user may define all <verbatim|:secure> option. Alternatively, the user may define all
<value|scheme> routines to be secure in <scheme> routines to be secure in <menu|Edit|Preferences|Security|Accept
<menu|Edit|Preferences|Security|Accept all scripts>. all scripts>.
</explain> </explain>
<\explain> <\explain>
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<flag|warning|red>. The optional <src-arg|var> argument may be used in <flag|warning|red>. The optional <src-arg|var> argument may be used in
order to specify that the flag should only be visible if the macro order to specify that the flag should only be visible if the macro
argument <src-arg|var> corresponds to an accessible part of the document. argument <src-arg|var> corresponds to an accessible part of the document.
For instance, <TeXmacs> automatically generated labels for section titles For instance, <TeXmacs> automatically generates labels for section titles
(so as to include them in the table of contents), but it is undesirable (so as to include them in the table of contents), but it is undesirable
to display informative flags for such labels. to display informative flags for such labels.
</explain> </explain>