/*
 *	PROGRAM:	JRD Command Oriented Query Language
 *	MODULE:		compile.h
 *	DESCRIPTION:	Parser/compiler definitions
 *
 * The contents of this file are subject to the Interbase Public
 * License Version 1.0 (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.Inprise.com/IPL.html
 *
 * Software distributed under the License is distributed on an
 * "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express
 * or implied. See the License for the specific language governing
 * rights and limitations under the License.
 *
 * The Original Code was created by Inprise Corporation
 * and its predecessors. Portions created by Inprise Corporation are
 * Copyright (C) Inprise Corporation.
 *
 * All Rights Reserved.
 * Contributor(s): ______________________________________.
 */

#ifndef QLI_COMPILE_H
#define QLI_COMPILE_H

/* Name nodes -- used to hold names between parse and compilation */

typedef struct nam {
    blk		nam_header;
    sym*	nam_symbol;		/* Symbol pointer, if any */
    USHORT	nam_length;		/* Length of name */
    TEXT	nam_string[1];	/* Actual name string */
} *NAM;

/* Qualified procedure node -- used to hold qualified procedure names */

typedef struct qpr {
    blk  qpr_header;
    dbb* qpr_database;		/* database block */
    nam* qpr_name;			/* name block */	
} *QPR;

/* Qualified function node -- used to hold qualified function names */

typedef struct qfn {
    blk  qfn_header;
    dbb* qfn_database;		/* database block */
    nam* qfn_name;			/* name block */	
} *QFN;

/* Qualified filter node -- used to hold qualified filter names */

typedef struct qfl {
    blk  qfl_header;
    dbb* qfl_database;		/* database block */
    nam* qfl_name;			/* name block */	
} *QFL;

/* SHOW options */

enum show_t {
    show_all,
    show_relation,
    show_relations,
    show_system_relations,
    show_database,
    show_databases,
    show_procedure,
    show_procedures,
    show_version,
    show_variable,
    show_variables,
    show_indices,
    show_qualified_procedure,
    show_field,
    show_filter,
    show_filters,
    show_global_field,
    show_global_fields,
    show_trigger,
    show_triggers,
    show_security_class,
    show_security_classes,
    show_forms,
    show_function,
    show_functions,
    show_views,
    show_system_triggers,
    show_matching_language,
    show_db_indices,
    show_db_fields
};

enum set_t {
    set_blr,
    set_statistics,
    set_epilog,
    set_columns,
    set_lines,
    set_semi,
    set_echo,
    set_form,
    set_matching_language,
    set_prompt,
    set_continuation,
    set_user,
    set_password,
    set_euc_justify,			/* JPN specific option */
    set_count,
    set_charset,
#ifdef DEV_BUILD
    set_hex_output,
    set_explain
#endif
};

/* Position assignments for syntax tree nodes */

#define s_rel_relation	0		/* Actual relation block */
#define s_rel_context	1		/* Symbol block for context, if any */
#define s_rel_count	2

#define s_prt_list	0		/* Print list */
#define s_prt_rse	1		/* Rse, if any */
#define s_prt_output	2		/* Output file, if any */
#define s_prt_distinct	3		/* Simple flag indicating distinct */
#define s_prt_order	4		/* SQL order clause */
#define s_prt_form	5
#define s_prt_count	6

#define s_rse_first	0		/* FIRST clause, if any */
#define s_rse_boolean	1		/* Boolean clause, if any */
#define s_rse_sort	2		/* Sort clause, if any */
#define s_rse_reduced	3		/* Reduced clause, if any */
#define s_rse_group_by	4
#define s_rse_having	5
#define s_rse_outer	6		/* Outer context value (implicit ANY) */
#define s_rse_inner	7		/* Inner context value */
#define s_rse_op	8		/* Comparison operator */
#define s_rse_join_type	9		/* Join type */
#define s_rse_all_flag	10		/* Explicit "ALL" flag */
#define s_rse_list	11
#ifdef PC_ENGINE
#define s_rse_index	12
#define s_rse_count	13
#else
#define s_rse_count	12
#endif

#define s_for_rse	0
#define s_for_statement	1
#define s_for_count	2

#define s_itm_value		0	/* Value of print item */
#define s_itm_edit_string	1	/* Edit string, if any */
#define s_itm_header		2	/* Query header, if any */
#define s_itm_count		3

#define s_sto_relation	0
#define s_sto_statement	1
#define s_sto_rse	2
#define s_sto_fields	3
#define s_sto_values	4
#define s_sto_form	5
#define s_sto_count	6

#define s_asn_from	0
#define s_asn_to	1
#define s_asn_count	2

#define s_mod_list	0		/* Field list */
#define s_mod_statement	1		/* Sub-statement */
#define s_mod_rse	2		/* Record selection expression */
#define s_mod_form	3
#define s_mod_count	4

#define s_era_rse	0
#define s_era_count	1

#define s_rpt_value	0
#define s_rpt_statement	1
#define s_rpt_count	2

#define s_if_boolean	0
#define s_if_true	1
#define s_if_false	2
#define s_if_count	3

#define s_stt_rse	0
#define s_stt_value	1
#define s_stt_default	2
#define s_stt_distinct	3
#define s_stt_count	4

#define s_out_file	0
#define s_out_pipe	1
#define s_out_count	2

#define s_fmt_value	0
#define s_fmt_edit	1
#define s_fmt_count	2

#define s_dfi_name	0
#define s_dfi_relation	1		/* Define index */
#define s_dfi_fields	2
#define s_dfi_count	3

#define s_mfi_name	0		/* Modify an index */
#define s_mfi_database	1
#define s_mfi_count	2

#define s_ffr_form	0
#define s_ffr_statement	1
#define s_ffr_count	2

#define s_frm_form	0
#define s_frm_context	1
#define s_frm_database	2
#define s_frm_count	3

#define s_men_string	0
#define s_men_labels	1
#define s_men_statements 2
#define s_men_count	3

#define s_fun_args	0
#define s_fun_function	1
#define s_fun_count	2

#define s_idx_field	0		/* array subscript */
#define s_idx_subs	1
#define s_idx_count	2

#define s_crv_name	0
#define s_crv_rse	1
#define s_crv_count	2

#define s_grant_fields	0
#define s_grant_relation 1
#define s_grant_users	2
#define s_grant_privileges 3
#define s_grant_count	4   

/*  some flags for index definitions */

#define s_dfi_flag_unique	1
#define s_dfi_flag_inactive	2	
#define s_dfi_flag_activity	4
#define s_dfi_flag_selectivity	8
#define s_dfi_flag_descending  16
#define s_dfi_flag_order       32
#define s_dfi_flag_statistics  64

#endif /* QLI_COMPILE_H */