1f958cfad7
These implementations of the bc and dc programs offer a number of advantages compared to the current implementations in the FreeBSD base system: - They do not depend on external large number functions (i.e. no dependency on OpenSSL or any other large number library) - They implements all features found in GNU bc/dc (with the exception of the forking of sub-processes, which the author of this version considers as a security issue). - They are significantly faster than the current code in base (more than 2 orders of magnitude in some of my tests, e.g. for 12345^100000). - They should be fully compatible with all features and the behavior of the current implementations in FreeBSD (not formally verified). - They support POSIX message catalogs and come with localized messages in Chinese, Dutch, English, French, German, Japanese, Polish, Portugueze, and Russian. - They offer very detailed man-pages that provide far more information than the current ones. Approved by: imp Obtained from: https://git.yzena.com/gavin/bc Differential Revision: https://reviews.freebsd.org/D19982
60 lines
2.2 KiB
C
60 lines
2.2 KiB
C
/*
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* *****************************************************************************
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*
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* Copyright (c) 2018-2020 Gavin D. Howard and contributors.
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* *****************************************************************************
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*
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* Code to handle special I/O for bc.
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*
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*/
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#ifndef BC_IO_H
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#define BC_IO_H
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#include <stdlib.h>
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#include <status.h>
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#include <vector.h>
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#ifndef BC_ENABLE_PROMPT
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#define BC_ENABLE_PROMPT (1)
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#endif // BC_ENABLE_PROMPT
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#if !BC_ENABLE_PROMPT
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#define bc_read_line(vec, prompt) bc_read_line(vec)
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#define bc_read_chars(vec, prompt) bc_read_chars(vec)
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#endif // BC_ENABLE_PROMPT
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#define BC_READ_BIN_CHAR(c) (((c) < ' ' && !isspace((c))) || ((uchar) c) > '~')
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BcStatus bc_read_line(BcVec *vec, const char *prompt);
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void bc_read_file(const char *path, char **buf);
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BcStatus bc_read_chars(BcVec *vec, const char *prompt);
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#endif // BC_IO_H
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