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/*
* Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-runtime-lib
* Created on: 18 сент. 2019 г.
*
* lsp-runtime-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-runtime-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-runtime-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_EXPR_PARSER_H_
#define LSP_PLUG_IN_EXPR_PARSER_H_
#include <lsp-plug.in/runtime/version.h>
#include <lsp-plug.in/runtime/LSPString.h>
#include <lsp-plug.in/expr/types.h>
#include <lsp-plug.in/expr/evaluator.h>
#include <lsp-plug.in/expr/Tokenizer.h>
namespace lsp
{
namespace expr
{
enum expr_type_t
{
ET_CALC,
ET_RESOLVE,
ET_VALUE
};
typedef struct expr_t
{
evaluator_t eval; // Evaluation routine
expr_type_t type; // Expression data type
union
{
struct
{
expr_t *left; // First operand (unary, binary, ternary)
expr_t *right; // Second operand (binary, ternary)
expr_t *cond; // Condition (ternary)
} calc;
struct
{
LSPString *name; // Base name of variable
size_t count; // Number of additional indexes
expr_t **items; // List of additional indexes
} resolve;
value_t value; // Value
};
} expr_t;
expr_t *parse_create_expr();
void parse_destroy(expr_t *expr);
status_t parse_ternary(expr_t **expr, Tokenizer *t, size_t flags);
status_t parse_or(expr_t **expr, Tokenizer *t, size_t flags);
status_t parse_xor(expr_t **expr, Tokenizer *t, size_t flags);
status_t parse_and(expr_t **expr, Tokenizer *t, size_t flags);
status_t parse_bit_or(expr_t **expr, Tokenizer *t, size_t flags);
status_t parse_bit_xor(expr_t **expr, Tokenizer *t, size_t flags);
status_t parse_bit_and(expr_t **expr, Tokenizer *t, size_t flags);
status_t parse_cmp_eq(expr_t **expr, Tokenizer *t, size_t flags);
status_t parse_cmp_rel(expr_t **expr, Tokenizer *t, size_t flags);
status_t parse_strcat(expr_t **expr, Tokenizer *t, size_t flags);
status_t parse_strrep(expr_t **expr, Tokenizer *t, size_t flags);
status_t parse_addsub(expr_t **expr, Tokenizer *t, size_t flags);
status_t parse_muldiv(expr_t **expr, Tokenizer *t, size_t flags);
status_t parse_power(expr_t **expr, Tokenizer *t, size_t flags);
status_t parse_not(expr_t **expr, Tokenizer *t, size_t flags);
status_t parse_sign(expr_t **expr, Tokenizer *t, size_t flags);
status_t parse_func(expr_t **expr, Tokenizer *t, size_t flags);
status_t parse_primary(expr_t **expr, Tokenizer *t, size_t flags);
status_t parse_identifier(expr_t **expr, Tokenizer *t, size_t flags);
status_t parse_expression(expr_t **expr, Tokenizer *t, size_t flags);
}
}
#endif /* LSP_PLUG_IN_EXPR_PARSER_H_ */
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