head	1.13;
access;
symbols
	FSL_1_7_0:1.13
	CFG_0_9_11:1.13
	FSL_1_6_1:1.12
	CFG_0_9_10:1.12
	FSL_1_6_0:1.12
	FSL_1_6b2:1.12
	CFG_0_9_9:1.12
	FSL_1_6b1:1.12
	CFG_0_9_8:1.12
	CFG_0_9_7:1.11
	CFG_0_9_6:1.11
	CFG_0_9_5:1.9
	CFG_0_9_4:1.8
	FSL_1_5_0:1.7
	FSL_1_5a3:1.7
	CFG_0_9_3:1.7
	FSL_1_5a2:1.7
	FSL_1_5a1:1.7
	FSL_1_4_0:1.7
	FSL_1_4b1:1.7
	CFG_0_9_2:1.7
	CFG_0_9_1:1.7
	FSL_1_4a1:1.7
	FSL_1_3_0:1.7
	FSL_1_3b1:1.7
	FSL_1_2_1:1.7
	FSL_1_2_0:1.7
	FSL_1_1_0:1.7
	FSL_1_1b1:1.7
	FSL_1_0_8:1.7
	FSL_1_0_7:1.7
	FSL_1_0_6:1.3
	FSL_1_0_5:1.3
	FSL_1_0_4:1.3
	FSL_1_0_3:1.3
	FSL_1_0_2:1.3
	FSL_1_0_1:1.3
	FSL_1_0_0:1.3
	FSL_0_9_0:1.3
	CFG_0_9_0:1.3
	FSL_0_1_12:1.3
	FSL_0_1_11:1.3
	FSL_0_1_10:1.3
	FSL_0_1_9:1.3
	FSL_0_1_8:1.3
	FSL_0_1_7:1.3
	FSL_0_1_6:1.3
	FSL_0_1_5:1.3
	FSL_0_1_1:1.3;
locks; strict;
comment	@ * @;


1.13
date	2006.08.10.19.35.57;	author rse;	state Exp;
branches;
next	1.12;
commitid	Isy241gp4yykKkIr;

1.12
date	2004.12.31.19.16.25;	author rse;	state Exp;
branches;
next	1.11;

1.11
date	2004.12.04.12.48.40;	author rse;	state Exp;
branches;
next	1.10;

1.10
date	2004.11.28.14.17.52;	author rse;	state Exp;
branches;
next	1.9;

1.9
date	2004.11.20.12.54.07;	author rse;	state Exp;
branches;
next	1.8;

1.8
date	2004.07.17.07.37.55;	author rse;	state Exp;
branches;
next	1.7;

1.7
date	2003.01.06.11.17.43;	author rse;	state Exp;
branches;
next	1.6;

1.6
date	2003.01.06.11.08.26;	author rse;	state Exp;
branches;
next	1.5;

1.5
date	2002.11.18.09.51.29;	author rse;	state Exp;
branches;
next	1.4;

1.4
date	2002.11.10.12.12.23;	author rse;	state Exp;
branches;
next	1.3;

1.3
date	2002.07.10.12.00.23;	author rse;	state Exp;
branches;
next	1.2;

1.2
date	2002.07.04.14.51.21;	author rse;	state Exp;
branches;
next	1.1;

1.1
date	2002.07.03.13.25.34;	author rse;	state Exp;
branches;
next	;


desc
@@


1.13
log
@cleanup source tree for status as of 2006
@
text
@%{
/*
**  OSSP cfg - Configuration Parsing
**  Copyright (c) 2002-2006 Ralf S. Engelschall <rse@@engelschall.com>
**  Copyright (c) 2002-2006 The OSSP Project (http://www.ossp.org/)
**
**  This file is part of OSSP cfg, a configuration parsing
**  library which can be found at http://www.ossp.org/pkg/lib/cfg/.
**
**  Permission to use, copy, modify, and distribute this software for
**  any purpose with or without fee is hereby granted, provided that
**  the above copyright notice and this permission notice appear in all
**  copies.
**
**  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
**  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
**  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
**  IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
**  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
**  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
**  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
**  USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
**  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
**  OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
**  OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
**  SUCH DAMAGE.
**
**  cfg_syn_parse.y: context free grammar specification for GNU Bison
**
**  ATTENTION: This requires GNU Bison 1.875 or newer!
*/

#include <stdio.h>
#include <stdlib.h>

#include "cfg.h"
#include "cfg_global.h"
#include "cfg_syn.h"

/* make sure yyparse() accepts a context pointer and
   passes through its inlined scanner context to yylex() */
#define CTX           ((cfg_syn_ctx_t *)ctx)
#define YYPARSE_PARAM ctx
#define YYLEX_PARAM   CTX->yyscan

/* provide an explicit prototype for the yylex() function but use
   "void *" instead of correct type because at this point in the
   generation process we have the types still not available */
extern int yylex(/*YYSTYPE*/ void *lvalp,
                 /*YYLTYPE*/ void *llocp, cfg_syn_ctx_t *ctx);

/* generate verbose error messages and remember them inside the context */
#undef  yyerror
#define yyerror(msg) \
    cfg_syn_error(CTX, CFG_ERR_SYN, &yylloc, "%s", msg)

/* scanner state transition */
extern void cfg_syn_scan_push(cfg_syn_ctx_t *, const char *state);
extern void cfg_syn_scan_pop (cfg_syn_ctx_t *);

%}

/* parser options */
%error-verbose
%pure_parser
%locations
%defines

/* the YYSTYPE: parser token value */
%union {
    char         *cpString;
    cfg_node_t   *npNode;
}

/* assign YYSTYPE elements to parser rules */
%type  <npNode>   sequence
%type  <npNode>   directives
%type  <npNode>   directive
%type  <npNode>   tokens
%type  <npNode>   token
%type  <npNode>   string

/* list of scanner tokens */
%token            T_SEP
%token            T_OPEN
%token            T_CLOSE
%token <cpString> T_STRING

/* operator association */
%right T_SEP
%right T_OPEN
%right T_CLOSE

/* grammar start rule
   (technically redundant but explicit to be sure) */
%start configuration

%%

configuration
    : sequence {
        CTX->node = $1;
      }
    ;

sequence
    : directives {
        cfg_node_t *n;
        cfg_node_create(CTX->cfg, &n);
        cfg_node_set(CTX->cfg, n, CFG_NODE_ATTR_TYPE, CFG_NODE_TYPE_SEQ);
        cfg_node_set(CTX->cfg, n, CFG_NODE_ATTR_CHILD1, $1);
        $$ = n;
      }
    ;

directives
    : /* empty */ {
        $$ = NULL;
      }
    | directive {
        $$ = $1;
      }
    | directive T_SEP directives {
        cfg_node_set(CTX->cfg, $1, CFG_NODE_ATTR_RBROTH, $3);
        $$ = $1;
      }
    ;

directive
    : tokens {
        cfg_node_t *n;
        cfg_node_create(CTX->cfg, &n);
        cfg_node_set(CTX->cfg, n, CFG_NODE_ATTR_TYPE, CFG_NODE_TYPE_DIR);
        cfg_node_set(CTX->cfg, n, CFG_NODE_ATTR_CHILD1, $1);
        $$ = n;
      }
    ;

tokens
    : token {
        $$ = $1;
      }
    | token tokens {
        cfg_node_set(CTX->cfg, $1, CFG_NODE_ATTR_RBROTH, $2);
        $$ = $1;
      }
    ;

token
    : T_OPEN sequence T_CLOSE {
        $$ = $2;
      }
    | string {
        $$ = $1;
      }
    ;

string
    : T_STRING {
        cfg_node_t *n;
        cfg_node_create(CTX->cfg, &n);
        cfg_node_set(CTX->cfg, n, CFG_NODE_ATTR_TYPE, CFG_NODE_TYPE_ARG);
        cfg_node_set(CTX->cfg, n, CFG_NODE_ATTR_TOKEN|CFG_ATTR_GIFT, $1);
        $$ = n;
      }
    ;

%%

@


1.12
log
@Adjust copyright messages for new year 2005.
@
text
@d4 2
a5 3
**  Copyright (c) 2002-2005 Ralf S. Engelschall <rse@@engelschall.com>
**  Copyright (c) 2002-2005 The OSSP Project (http://www.ossp.org/)
**  Copyright (c) 2002-2005 Cable & Wireless (http://www.cw.com/)
@


1.11
log
@Plug remaining memory leaks by introducing the usual
LOAN/GIFT/COPY argument passing semantics to cfg_node_{set,get}
and using this to directly pass the allocated tokens from the
scanner through the parser into the node tree.
@
text
@d4 3
a6 3
**  Copyright (c) 2002-2004 Ralf S. Engelschall <rse@@engelschall.com>
**  Copyright (c) 2002-2004 The OSSP Project (http://www.ossp.org/)
**  Copyright (c) 2002-2004 Cable & Wireless (http://www.cw.com/)
@


1.10
log
@Fix annotational error reporting in scanner/parser.
@
text
@d164 1
a164 1
        cfg_node_set(CTX->cfg, n, CFG_NODE_ATTR_TOKEN, $1);
@


1.9
log
@- Fixed cfg_test program by correctly passing the used number of
  bytes in the buffer instead of the size of the buffer.
- Accept zero-length strings for parsing.
- Correctly handle end-of-file during plain text token scanning.
@
text
@d56 1
a56 1
    cfg_syn_error(CTX, CFG_ERR_SYN, &yylloc, msg)
@


1.8
log
@Adjust copyright messages for new year 2004.
@
text
@d60 2
a61 1
extern void cfg_syn_scan_pop(cfg_syn_ctx_t *);
@


1.7
log
@update copyright messages for new year
@
text
@d4 3
a6 3
**  Copyright (c) 2002-2003 Ralf S. Engelschall <rse@@engelschall.com>
**  Copyright (c) 2002-2003 The OSSP Project (http://www.ossp.org/)
**  Copyright (c) 2002-2003 Cable & Wireless Deutschland (http://www.cw.com/de/)
@


1.6
log
@upgrade to the latest Flex & Bison combo
@
text
@d4 3
a6 3
**  Copyright (c) 1999-2002 Ralf S. Engelschall <rse@@engelschall.com>
**  Copyright (c) 1999-2002 The OSSP Project (http://www.ossp.org/)
**  Copyright (c) 2001-2002 Cable & Wireless Deutschland (http://www.cw.com/de/)
@


1.5
log
@add Dmalloc support
@
text
@d31 1
a31 1
**  ATTENTION: This requires GNU Bison 1.30 or newer!
a56 1
#define YYERROR_VERBOSE
d64 1
@


1.4
log
@remove trailing whitespaces
@
text
@d38 1
@


1.3
log
@Mega-change: full API overhauling.
@
text
@d46 2
a47 2
/* provide an explicit prototype for the yylex() function but use 
   "void *" instead of correct type because at this point in the 
d49 1
a49 1
extern int yylex(/*YYSTYPE*/ void *lvalp, 
d93 1
a93 1
/* grammar start rule 
d116 1
a116 1
    : /* empty */ { 
d119 2
a120 2
    | directive { 
        $$ = $1; 
d122 1
a122 1
    | directive T_SEP directives { 
d138 3
a140 3
tokens 
    : token { 
        $$ = $1; 
d142 1
a142 1
    | token tokens { 
d149 2
a150 2
    : T_OPEN sequence T_CLOSE { 
        $$ = $2; 
d153 1
a153 1
        $$ = $1; 
d163 1
a163 1
        $$ = n; 
@


1.2
log
@Flush today's work: the library is now able to parse a .cfg file into
an internal node tree and export this again in textual .cfg file format
(including indented blocks).
@
text
@d108 3
a110 3
        cfg_node_create(&n);
        cfg_node_set(n, CFG_NODE_ATTR_TYPE, CFG_NODE_TYPE_SEQ);
        cfg_node_set(n, CFG_NODE_ATTR_CHILD1, $1);
d123 1
a123 1
        cfg_node_set($1, CFG_NODE_ATTR_RBROTH, $3);
d131 3
a133 3
        cfg_node_create(&n);
        cfg_node_set(n, CFG_NODE_ATTR_TYPE, CFG_NODE_TYPE_DIR);
        cfg_node_set(n, CFG_NODE_ATTR_CHILD1, $1);
d143 1
a143 1
        cfg_node_set($1, CFG_NODE_ATTR_RBROTH, $2);
d160 3
a162 3
        cfg_node_create(&n);
        cfg_node_set(n, CFG_NODE_ATTR_TYPE, CFG_NODE_TYPE_TOK);
        cfg_node_set(n, CFG_NODE_ATTR_TOKEN, $1);
@


1.1
log
@Add this first cut for the forthcoming OSSP cfg library to CVS.
This is work in progress and still not ready for use anywhere.
@
text
@d111 1
d134 1
@