VPPAPIGEN: vppapigen replacement in Python PLY.

This is a version of the VPP API generator in Python PLY. It supports
the existing language, and has a plugin architecture for generators.
Currently C and JSON are supported.

Changes:
 - vl_api_version to option version = "major.minor.patch"
 - enum support
 - Added error checking and reporting
 - import support (removed the C pre-processor)
 - services (tying request/reply together)

Version:
 option version = "1.0.0";

Enum:
 enum colours {
   RED,
   BLUE = 50,
 };
 define foo {
  vl_api_colours_t colours;
 };

Services:
 service {
  rpc foo returns foo_reply;
  rpc foo_dump returns stream foo_details;
  rpc want_stats returns want_stats_reply
      events ip4_counters, ip6_counters;
 };

Future planned features:
 - unions
 - bool, text
 - array support (including length)
 - proto3 output plugin
 - Refactor C/C++ generator as a plugin
 - Refactor Java generator as a plugin

Change-Id: Ifa289966c790e1b1a8e2938a91e69331e3a58bdf
Signed-off-by: Ole Troan <ot@cisco.com>

1 files changed, 0 insertions, 96 deletions

diff --git a/src/tools/vppapigen/gram.y b/src/tools/vppapigen/gram.y
deleted file mode 100644
index 5c5d46ff4e0..00000000000
--- a/src/tools/vppapigen/gram.y
+++ /dev/null
@@ -1,96 +0,0 @@
-%{
-/*
- * gram.y - message definition language
- *
- * Copyright (c) 2009 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-extern void yyerror (char *s);
-extern int yylex (void);
-    
-#define YYSTYPE void *
-    
-void generate (YYSTYPE);
- YYSTYPE add_slist(YYSTYPE, YYSTYPE);
- YYSTYPE add_define(YYSTYPE, YYSTYPE);
- YYSTYPE suppress_version(void);
- YYSTYPE add_defbody(YYSTYPE, YYSTYPE);
- YYSTYPE add_primtype(YYSTYPE, YYSTYPE, YYSTYPE);
- YYSTYPE add_complex(YYSTYPE, YYSTYPE);
- YYSTYPE add_union(YYSTYPE, YYSTYPE);
- YYSTYPE add_scalar_vbl(YYSTYPE);
- YYSTYPE add_vector_vbl(YYSTYPE, YYSTYPE);
- YYSTYPE add_variable_length_vector_vbl(YYSTYPE, YYSTYPE);
- YYSTYPE set_flags(YYSTYPE, YYSTYPE);
- YYSTYPE add_version(YYSTYPE, YYSTYPE, YYSTYPE);
-%}
-
-%token NAME RPAR LPAR SEMI LBRACK RBRACK NUMBER PRIMTYPE BARF
-%token TPACKED DEFINE LCURLY RCURLY STRING UNION
-%token HELPER_STRING COMMA DOT VL_API_VERSION
-%token NOVERSION MANUAL_PRINT MANUAL_ENDIAN TYPEONLY DONT_TRACE AUTOREPLY
-
-%%
-
-pgm:	  slist                 {generate ($1);}
-          ;
-
-slist:	  slist stmt            {$$ = add_slist ($1, $2);}
-        | stmt                  {$$ = $1;}
-          ;
-
-stmt:     flist defn            {$$ = set_flags($1, $2);}
-        | defn                  {$$ = $1;}
-        | api_version           {$$ = $1;}
-          ;
-
-flist:    flist flag            {$$ = (YYSTYPE)(unsigned long)
-                                     ((unsigned long) $1 
-                                    | (unsigned long) $2);}
-        | flag                  {$$ = $1;}
-          ;
-
-flag:   
-          MANUAL_PRINT          {$$ = $1;}
-        | MANUAL_ENDIAN         {$$ = $1;}
-        | DONT_TRACE            {$$ = $1;}
-        | TYPEONLY              {$$ = $1;}
-        | AUTOREPLY             {$$ = $1;}
-          ;
-
-defn:     DEFINE NAME LCURLY defbody RCURLY SEMI 
-                                {$$ = add_define($2, $4);}
-
-        | NOVERSION SEMI
-                                {$$ = suppress_version();}
-          ;
-
-defbody:  defbody onedef        {$$ = add_defbody($1, $2);}
-        | onedef                {$$ = $1;}
-          ;
-
-onedef:   PRIMTYPE vbl SEMI      {$$ = add_primtype($1, $2, 0);}
-        | TPACKED PRIMTYPE vbl SEMI {$$ = add_primtype($1, $2, $3);}
-        | NAME vbl SEMI          {$$ = add_complex($1, $2);}
-        | UNION NAME LCURLY defbody RCURLY SEMI 
-                                 {$$ = add_union($2, $4);}
-          ;
-
-vbl:      NAME                      {$$ = add_scalar_vbl($1);}
-        | NAME LBRACK NUMBER RBRACK {$$ = add_vector_vbl($1, $3);}
-        | NAME LBRACK NAME RBRACK {$$ = add_variable_length_vector_vbl($1, $3);}
-          ;
-
-api_version:  VL_API_VERSION NUMBER DOT NUMBER DOT NUMBER 
-                                    {$$ = add_version ($2, $4, $6);}