c1bc70b711
A lot of files were missing copyright field in the header and
the Blender Foundation contributed to them in a sense of bug
fixing and general maintenance.
This change makes it explicit that those files are at least
partially copyrighted by the Blender Foundation.
Note that this does not make it so the Blender Foundation is
the only holder of the copyright in those files, and developers
who do not have a signed contract with the foundation still
hold the copyright as well.
Another aspect of this change is using SPDX format for the
header. We already used it for the license specification,
and now we state it for the copyright as well, following the
FAQ:
https://reuse.software/faq/
66 lines
2.0 KiB
C
66 lines
2.0 KiB
C
/* SPDX-FileCopyrightText: 2018 Blender Foundation, Alexander Gavrilov. All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
|
|
#pragma once
|
|
|
|
/** \file
|
|
* \ingroup bli
|
|
*/
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/** Opaque structure containing pre-parsed data for evaluation. */
|
|
typedef struct ExprPyLike_Parsed ExprPyLike_Parsed;
|
|
|
|
/** Expression evaluation return code. */
|
|
typedef enum eExprPyLike_EvalStatus {
|
|
EXPR_PYLIKE_SUCCESS = 0,
|
|
/* Computation errors; result is still set, but may be NaN */
|
|
EXPR_PYLIKE_DIV_BY_ZERO,
|
|
EXPR_PYLIKE_MATH_ERROR,
|
|
/* Expression dependent errors or bugs; result is 0 */
|
|
EXPR_PYLIKE_INVALID,
|
|
EXPR_PYLIKE_FATAL_ERROR,
|
|
} eExprPyLike_EvalStatus;
|
|
|
|
/**
|
|
* Free the parsed data; NULL argument is ok.
|
|
*/
|
|
void BLI_expr_pylike_free(struct ExprPyLike_Parsed *expr);
|
|
/**
|
|
* Check if the parsing result is valid for evaluation.
|
|
*/
|
|
bool BLI_expr_pylike_is_valid(struct ExprPyLike_Parsed *expr);
|
|
/**
|
|
* Check if the parsed expression always evaluates to the same value.
|
|
*/
|
|
bool BLI_expr_pylike_is_constant(struct ExprPyLike_Parsed *expr);
|
|
/**
|
|
* Check if the parsed expression uses the parameter with the given index.
|
|
*/
|
|
bool BLI_expr_pylike_is_using_param(struct ExprPyLike_Parsed *expr, int index);
|
|
/**
|
|
* Compile the expression and return the result.
|
|
*
|
|
* Parse the expression for evaluation later.
|
|
* Returns non-NULL even on failure; use is_valid to check.
|
|
*/
|
|
ExprPyLike_Parsed *BLI_expr_pylike_parse(const char *expression,
|
|
const char **param_names,
|
|
int param_names_len);
|
|
/**
|
|
* Evaluate the expression with the given parameters.
|
|
* The order and number of parameters must match the names given to parse.
|
|
*/
|
|
eExprPyLike_EvalStatus BLI_expr_pylike_eval(struct ExprPyLike_Parsed *expr,
|
|
const double *param_values,
|
|
int param_values_len,
|
|
double *r_result);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|