[latex3-commits] [l3svn] 03/06: Add an internal copy of \char_generate:nn

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joseph pushed a commit to branch master
in repository l3svn.

commit 6cacfc347951287215ea6d533df61c9e9e1c41e0
Author: Joseph Wright <joseph.wright at morningstar2.co.uk>
Date:   Fri Mar 25 19:47:54 2016 +0000

    Add an internal copy of \char_generate:nn
    
    This will let us make actives with pdfTeX where required and also
    to document a version with defined expansion behaviour.
---
 l3kernel/l3token.dtx |   22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/l3kernel/l3token.dtx b/l3kernel/l3token.dtx
index 2632b42..58d6edb 100644
--- a/l3kernel/l3token.dtx
+++ b/l3kernel/l3token.dtx
@@ -1007,6 +1007,19 @@
 %   not a macro then \cs{scan_stop:} will be left in the input stream
 % \end{function}
 %
+% \section{Internal functions}
+%
+% \begin{function}[EXP, added = 2016-03-25]{\__char_generate:nn}
+%   \begin{syntax}
+%      \cs{__char_generate:nn} \Arg{charcode} \Arg{catcode}
+%   \end{syntax}
+%   This function is identical in operation to the public
+%   \cs{char_generate:nn} but omits various sanity tests. In particular, this
+%   means it is used in certain places where engine variations need to be
+%   accounted for by the kernel. This function expands to a token in exactly
+%   two expansion steps.
+% \end{function}
+%
 % \end{documentation}
 %
 % \begin{implementation}
@@ -1270,6 +1283,7 @@
 % \end{macro}
 %
 % \begin{macro}[EXP]{\char_generate:nn}
+% \begin{macro}[EXP, int]{\char_generate:nn}
 % \begin{macro}[EXP, aux]{\@@_generate_aux:nn}
 % \begin{macro}[EXP, aux]{\@@_generate_aux:nnw}
 % \begin{variable}{\l_@@_tmp_tl}
@@ -1287,6 +1301,13 @@
       \__int_value:w \__int_eval:w #1 \exp_after:wN ;
       \__int_value:w \__int_eval:w #2 ;
   }
+\cs_new:Npn \__char_generate:nn #1#2
+  {
+    \exp:w \exp_after:wN
+      \@@_generate_aux:nnw \exp_after:wN 
+        { \__int_value:w \__int_eval:w #1 \exp_after:wN }
+          {#2} \exp_end:
+  }
 %    \end{macrocode}
 %   Before doing any actual conversion, first some special case filtering.
 %   The \tn{Ucharcat} primitive cannot make active chars, so that is turned
@@ -1454,6 +1475,7 @@
 \group_end:
 %    \end{macrocode}
 % \end{macro}
+% \end{macro}
 % \end{variable}
 % \end{variable}
 % \end{macro}

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