muscles: be sure that %code snippets are not glue together on a single line

Recently "braceless" in the parser was changed so that an eol was no
longer added to the value.  This is not correct when a %code is used
multiple times, because the syncline of the next snippet might be
appended to the last (and not ended) line of the previous snippet.

* src/muscle-tab.h (muscle_grow): Make it private.
* src/muscle-tab.c (muscle_grow): Accept a fourth argument: a required
terminator.
Adjust callers.
* tests/input.at (Multiple %code): New.

1 files changed, 2 insertions, 7 deletions

diff --git a/src/muscle-tab.h b/src/muscle-tab.h
index af6b615c..3199a2d4 100644
--- a/src/muscle-tab.h
+++ b/src/muscle-tab.h
@@ -99,14 +99,9 @@ extern struct obstack muscle_obstack;
   MUSCLE_INSERT_STRING(Key, quotearg_style (c_quoting_style, Value))
 
 
-/* Append VALUE to the current value of KEY.  If KEY did not already
-   exist, create it.  Use MUSCLE_OBSTACK.  De-allocate the previously
-   associated value.  Copy VALUE and SEPARATOR.  */
-void muscle_grow (const char *key, const char *value, const char *separator);
-
-
 /* Append VALUE to the current value of KEY, using muscle_grow.  But
-   in addition, issue a synchronization line for the location LOC.  */
+   in addition, issue a synchronization line for the location LOC.
+   Be sure to append on a new line.  */
 void muscle_code_grow (const char *key, const char *value, location loc);