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Diffstat (limited to 'source/blender/blenlib/BLI_simple_expr.h')
| -rw-r--r-- | source/blender/blenlib/BLI_simple_expr.h | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/source/blender/blenlib/BLI_simple_expr.h b/source/blender/blenlib/BLI_simple_expr.h deleted file mode 100644 index 8498f1a02e7..00000000000 --- a/source/blender/blenlib/BLI_simple_expr.h +++ /dev/null @@ -1,96 +0,0 @@ -/* - * ***** BEGIN GPL LICENSE BLOCK ***** - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software Foundation, - * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - * The Original Code is Copyright (C) 2018 Blender Foundation, Alexander Gavrilov - * All rights reserved. - * - * Contributor(s): Alexander Gavrilov - * - * ***** END GPL LICENSE BLOCK ***** - */ - -#ifndef __BLI_SIMPLE_EXPR_H__ -#define __BLI_SIMPLE_EXPR_H__ - -/** \file BLI_simple_expr.h - * \ingroup bli - * \author Alexander Gavrilov - * \since 2018 - * - * Simple evaluator for a subset of Python expressions that can be - * computed using purely double precision floating point values. - * - * Supported subset: - * - * - Identifiers use only ASCII characters. - * - Literals: - * floating point and decimal integer. - * - Constants: - * pi, True, False - * - Operators: - * +, -, *, /, ==, !=, <, <=, >, >=, and, or, not, ternary if - * - Functions: - * radians, degrees, - * abs, fabs, floor, ceil, trunc, int, - * sin, cos, tan, asin, acos, atan, atan2, - * exp, log, sqrt, pow, fmod - * - * The implementation has no global state and can be used multithreaded. - */ - -#ifdef __cplusplus -extern "C" { -#endif - -/** Opaque structure containing pre-parsed data for evaluation. */ -typedef struct ParsedSimpleExpr ParsedSimpleExpr; - -/** Simple expression evaluation return code. */ -typedef enum eSimpleExpr_EvalStatus { - SIMPLE_EXPR_SUCCESS = 0, - /* Computation errors; result is still set, but may be NaN */ - SIMPLE_EXPR_DIV_BY_ZERO, - SIMPLE_EXPR_MATH_ERROR, - /* Expression dependent errors or bugs; result is 0 */ - SIMPLE_EXPR_INVALID, - SIMPLE_EXPR_FATAL_ERROR, -} eSimpleExpr_EvalStatus; - -/** Free the parsed data; NULL argument is ok. */ -void BLI_simple_expr_free(struct ParsedSimpleExpr *expr); - -/** Check if the parsing result is valid for evaluation. */ -bool BLI_simple_expr_is_valid(struct ParsedSimpleExpr *expr); - -/** Check if the parsed expression always evaluates to the same value. */ -bool BLI_simple_expr_is_constant(struct ParsedSimpleExpr *expr); - -/** Parse the expression for evaluation later. - * Returns non-NULL even on failure; use is_valid to check. - */ -ParsedSimpleExpr *BLI_simple_expr_parse(const char *expression, int num_params, const char **param_names); - -/** Evaluate the expression with the given parameters. - * The order and number of parameters must match the names given to parse. - */ -eSimpleExpr_EvalStatus BLI_simple_expr_evaluate(struct ParsedSimpleExpr *expr, double *result, int num_params, const double *params); - -#ifdef __cplusplus -} -#endif - -#endif /* __BLI_SIMPLE_EXPR_H__*/ |