X-Git-Url: https://git.hcoop.net/bpt/emacs.git/blobdiff_plain/75c8c59233cde6b0dedac7bd5ec33529a7ec1f56..b6e11efd50d48abb8077c5b055688a08d51e80aa:/src/ccl.h

diff --git a/src/ccl.h b/src/ccl.h
index 2f019e40d2..b0c9f20e8a 100644
--- a/src/ccl.h
+++ b/src/ccl.h
@@ -22,6 +22,14 @@ Boston, MA 02111-1307, USA.  */
 #ifndef _CCL_H
 #define _CCL_H
 
+/* Macros for exit status of CCL program.  */
+#define CCL_STAT_SUCCESS	0 /* Terminated successfully.  */
+#define CCL_STAT_SUSPEND_BY_SRC	1 /* Terminated by empty input.  */
+#define CCL_STAT_SUSPEND_BY_DST	2 /* Terminated by output buffer full.  */
+#define CCL_STAT_INVALID_CMD	3 /* Terminated because of invalid
+				     command.  */
+#define CCL_STAT_QUIT		4 /* Terminated because of quit.  */
+
 /* Structure to hold information about running CCL code.  Read
    comments in the file ccl.c for the detail of each field.  */
 struct ccl_program {
@@ -33,12 +41,18 @@ struct ccl_program {
   int reg[8];			/* CCL registers, reg[7] is used for
 				   condition flag of relational
 				   operations.  */
+  int private_state;            /* CCL instruction may use this
+				   for private use, mainly for preservation
+				   internal states for suspending.
+				   This variable is set to 0 when ccl is 
+				   set up.  */
   int last_block;		/* Set to 1 while processing the last
 				   block. */
   int status;			/* Exit status of the CCL program.  */
   int buf_magnification;	/* Output buffer magnification.  How
 				   many times bigger the output buffer
 				   should be than the input buffer.  */
+  int stack_idx;		/* How deep the call of CCL_Call is nested.  */
 };
 
 /* This data type is used for the spec field of the structure
@@ -47,9 +61,24 @@ struct ccl_program {
 struct ccl_spec {
   struct ccl_program decoder;
   struct ccl_program encoder;
+  unsigned char valid_codes[256];
 };
 
 /* Alist of fontname patterns vs corresponding CCL program.  */
 extern Lisp_Object Vfont_ccl_encoder_alist;
 
+/* Setup fields of the structure pointed by CCL appropriately for the
+   execution of ccl program CCL_PROG (symbol or vector).  */
+extern int setup_ccl_program P_ ((struct ccl_program *, Lisp_Object));
+
+extern int ccl_driver P_ ((struct ccl_program *, unsigned char *,
+			   unsigned char *, int, int, int *));
+
+/* Vector of CCL program names vs corresponding program data.  */
+extern Lisp_Object Vccl_program_table;
+
+/* Symbols of ccl program have this property, a value of the property
+   is an index for Vccl_protram_table. */
+extern Lisp_Object Qccl_program_idx;
+
 #endif /* _CCL_H */