X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/34136e65fc7bd6babcfedcbfcfdca3b9feb10f1d..c5ae8e85aa660a5dcab6873d8984a49a055c2146:/data/stack.hh

diff --git a/data/stack.hh b/data/stack.hh
index dcd0832b..4fd136fd 100644
--- a/data/stack.hh
+++ b/data/stack.hh
@@ -18,19 +18,10 @@
 m4_pushdef([b4_copyright_years],
            [2002-2012])
 
-# We do want M4 expansion after # for CPP macros.
-m4_changecom()
-m4_divert_push(0)dnl
-@output(b4_dir_prefix[]stack.hh@)@
-b4_copyright([Stack handling for Bison parsers in C++])[
-
-#ifndef BISON_STACK_HH
-# define BISON_STACK_HH
-
-#include <deque>
-
-]b4_namespace_open[
-  template <class T, class S = std::deque<T> >
+# b4_stack_define
+# ---------------
+m4_define([b4_stack_define],
+[[  template <class T, class S = std::deque<T> >
   class stack
   {
   public:
@@ -109,8 +100,8 @@ b4_copyright([Stack handling for Bison parsers in C++])[
   {
   public:
     slice (const S& stack, unsigned int range)
-      : stack_ (stack),
-        range_ (range)
+      : stack_ (stack)
+      , range_ (range)
     {
     }
 
@@ -125,10 +116,27 @@ b4_copyright([Stack handling for Bison parsers in C++])[
     const S& stack_;
     unsigned int range_;
   };
+]])
+
+b4_defines_if(
+[b4_output_begin([b4_dir_prefix[]stack.hh])
+b4_copyright([Stack handling for Bison parsers in C++])[
+
+/**
+ ** \file ]b4_dir_prefix[stack.hh
+ ** Define the ]b4_namespace_ref[::stack class.
+ */
+
+]b4_cpp_guard_open([b4_dir_prefix[]stack.hh])[
+
+# include <deque>
+
+]b4_namespace_open[
+]b4_stack_define[
 ]b4_namespace_close[
 
-#endif // not BISON_STACK_HH[]dnl
-]
-m4_divert_pop(0)
-m4_popdef([b4_copyright_years])dnl
-m4_changecom([#])
+]b4_cpp_guard_close([b4_dir_prefix[]stack.hh])
+b4_output_end()
+])
+
+m4_popdef([b4_copyright_years])