* src/scan-skel.l: Postprocess quadrigraphs.

[bison.git] / src / reader.c

diff --git a/src/reader.c b/src/reader.c
index 099f32dabc63bf2b27269f0e83de0d73ede3e085..3375fa2a3f48d250d39401e6a436c7e777a0ff35 100644 (file)
--- a/src/reader.c
+++ b/src/reader.c
@@ -332,6 +332,28 @@ get_type_name (int n, symbol_list *rule)
   return rp->sym->type_name;
 }
 \f
+/*------------------------------------------------------------------.
+| Copy the character C to OOUT, and insert quadigraphs when needed. |
+`------------------------------------------------------------------*/
+
+static inline void
+copy_character (struct obstack *oout, int c)
+{
+  switch (c)
+    {
+    case '[':
+      obstack_sgrow (oout, "@<:@");
+      break;
+
+    case ']':
+      obstack_sgrow (oout, "@:>@");
+      break;
+
+    default:
+      obstack_1grow (oout, c);
+    }
+}
+
 /*------------------------------------------------------------.
 | Dump the string from FIN to OOUT if non null.  MATCH is the |
 | delimiter of the string (either ' or ").                    |
@@ -359,14 +381,14 @@ copy_string2 (FILE *fin, struct obstack *oout, int match, int store)
          continue;
        }
 
-      obstack_1grow (oout, c);
+      copy_character (oout, c);
 
       if (c == '\\')
        {
          c = getc (fin);
          if (c == EOF)
            fatal (_("unterminated string at end of file"));
-         obstack_1grow (oout, c);
+         copy_character (oout, c);
 
          if (c == '\n')
            ++lineno;
@@ -463,7 +485,7 @@ copy_comment (FILE *fin, struct obstack *oout)
        fatal (_("unterminated comment"));
       else
        {
-         obstack_1grow (oout, c);
+         copy_character (oout, c);
          c = getc (fin);
        }
     }
@@ -634,7 +656,7 @@ copy_definition (struct obstack *oout)
          fatal ("%s", _("unterminated `%{' definition"));
 
        default:
-         obstack_1grow (oout, c);
+         copy_character (oout, c);
        }
 
       c = getc (finput);
@@ -1666,7 +1688,7 @@ read_additionnal_code (void)
     }
 
   while ((c = getc (finput)) != EOF)
-    obstack_1grow (&el_obstack, c);
+    copy_character (&el_obstack, c);
 
   obstack_1grow (&el_obstack, 0);
   muscle_insert ("epilogue", obstack_finish (&el_obstack));