500 lines
15 KiB
C
500 lines
15 KiB
C
/*
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libfort
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MIT License
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Copyright (c) 2017 - 2018 Seleznev Anton
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#ifndef LIBFORT_H
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#define LIBFORT_H
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#include <stddef.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <limits.h>
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/*
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* Determine compiler
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*/
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#if defined(__clang__)
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#define FT_CLANG_COMPILER
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#elif defined(__GNUC__)
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#define FT_GCC_COMPILER
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#elif defined(_MSC_VER)
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#define FT_MICROSOFT_COMPILER
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#else
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#define FT_UNDEFINED_COMPILER
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#endif
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/*
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* Declare restrict
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*/
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/*
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#if defined(__cplusplus)
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#if defined(FT_CLANG_COMPILER)
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#define FT_RESTRICT __restrict__
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#else
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#define FT_RESTRICT __restrict
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#endif // if defined(FT_CLANG_COMPILER)
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#else
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#if __STDC_VERSION__ < 199901L
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#define FT_RESTRICT
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#else
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#define FT_RESTRICT restrict
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#endif // __STDC_VERSION__ < 199901L
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#endif // if defined(__cplusplus)
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*/
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/*
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* Declare restrict
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*/
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#if defined(__cplusplus)
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#define FT_INLINE inline
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#else
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#define FT_INLINE __inline
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#endif /* if defined(__cplusplus) */
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/*
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* Attribute format for argument checking
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*/
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#if defined(FT_CLANG_COMPILER) || defined(FT_GCC_COMPILER)
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#define FT_PRINTF_ATTRIBUTE_FORMAT(string_index, first_to_check) \
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__attribute__ ((format (printf, string_index, first_to_check)))
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#else
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#define FT_PRINTF_ATTRIBUTE_FORMAT(string_index, first_to_check)
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#endif /* defined(FT_CLANG_COMPILER) || defined(FT_GCC_COMPILER) */
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/*
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* C++ needs to know that types and declarations are C, not C++.
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*/
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#ifdef __cplusplus
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# define FT_BEGIN_DECLS extern "C" {
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# define FT_END_DECLS }
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#else
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# define FT_BEGIN_DECLS
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# define FT_END_DECLS
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#endif
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#ifndef FT_EXTERN
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#define FT_EXTERN extern
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#endif
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/*
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* Wchar support
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*/
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#define FT_HAVE_WCHAR
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/*
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* Helper macros
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*/
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#define STR_2_CAT_(arg1, arg2) \
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arg1##arg2
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#define STR_2_CAT(arg1, arg2) \
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STR_2_CAT_(arg1, arg2)
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static FT_INLINE int ft_check_if_string_helper(const char *str)
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{
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(void)str;
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return 0;
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}
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static FT_INLINE int ft_check_if_wstring_helper(const wchar_t *str)
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{
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(void)str;
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return 0;
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}
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#define FORT_NARGS_IMPL_(x1,x2,x3,x4,x5,x6,x7,x8,x9,x10,x11,x12,x13,x14,x15,N,...) N
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#define FT_EXPAND_(x) x
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#define PP_NARG(...) \
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FT_EXPAND_(FORT_NARGS_IMPL_(__VA_ARGS__,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1,0))
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#define CHECK_IF_STRING_32(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_31(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_31(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_30(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_30(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_29(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_29(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_28(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_28(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_27(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_27(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_26(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_26(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_25(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_25(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_24(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_24(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_23(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_23(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_22(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_22(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_21(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_21(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_20(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_20(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_19(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_19(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_18(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_18(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_17(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_17(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_16(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_16(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_15(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_15(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_14(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_14(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_13(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_13(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_12(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_12(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_11(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_11(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_10(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_10(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_9(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_9(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_8(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_8(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_7(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_7(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_6(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_6(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_5(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_5(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_4(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_4(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_3(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_3(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_2(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_2(checker,arg,...) (checker(arg),FT_EXPAND_(CHECK_IF_STRING_1(checker,__VA_ARGS__)))
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#define CHECK_IF_STRING_1(checker,arg) (checker(arg))
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#define CHECK_IF_ARGS_ARE_STRINGS__(checker,func, ...) \
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FT_EXPAND_(func(checker,__VA_ARGS__))
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#define CHECK_IF_ARGS_ARE_STRINGS_(checker,basis, n, ...) \
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CHECK_IF_ARGS_ARE_STRINGS__(checker,STR_2_CAT_(basis, n), __VA_ARGS__)
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#define CHECK_IF_ARGS_ARE_STRINGS(...) \
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CHECK_IF_ARGS_ARE_STRINGS_(ft_check_if_string_helper,CHECK_IF_STRING_,PP_NARG(__VA_ARGS__), __VA_ARGS__)
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#ifdef FT_HAVE_WCHAR
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#define CHECK_IF_ARGS_ARE_WSTRINGS(...) \
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CHECK_IF_ARGS_ARE_STRINGS_(ft_check_if_wstring_helper,CHECK_IF_STRING_,PP_NARG(__VA_ARGS__), __VA_ARGS__)
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#endif
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/*
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* libfort structures and functions declarations
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*/
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FT_BEGIN_DECLS
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struct fort_table;
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typedef struct fort_table FTABLE;
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/**
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* Create formatted table.
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*
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* @return
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* The pointer to the new allocated FTABLE, on success. NULL on error
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* with ft_errno set appropriately.
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*/
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FT_EXTERN FTABLE *ft_create_table(void);
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/**
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* Destroy formatted table.
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*
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* Destroy formatted table and free all resources allocated during table creation
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* and work with it.
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*
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* @param table
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* Pointer to formatted table previousley created with ft_create_table.
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*/
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FT_EXTERN void ft_destroy_table(FTABLE *table);
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/**
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* Move current position to the first cell of the next line(row).
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*
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* @param table
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* Pointer to formatted table.
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*/
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FT_EXTERN void ft_ln(FTABLE *table);
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FT_EXTERN size_t ft_cur_row(FTABLE *table);
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FT_EXTERN size_t ft_cur_col(FTABLE *table);
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#if defined(FT_CLANG_COMPILER) || defined(FT_GCC_COMPILER)
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FT_EXTERN int ft_printf(FTABLE *table, const char *fmt, ...) FT_PRINTF_ATTRIBUTE_FORMAT(2, 3);
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FT_EXTERN int ft_printf_ln(FTABLE *table, const char *fmt, ...) FT_PRINTF_ATTRIBUTE_FORMAT(2, 3);
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#else
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FT_EXTERN int ft_printf_impl(FTABLE *table, const char *fmt, ...) FT_PRINTF_ATTRIBUTE_FORMAT(2, 3);
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FT_EXTERN int ft_printf_ln_impl(FTABLE *table, const char *fmt, ...) FT_PRINTF_ATTRIBUTE_FORMAT(2, 3);
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#define ft_printf(table, ...) \
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(( 0 ? fprintf(stderr, __VA_ARGS__) : 1), ft_printf_impl(table, __VA_ARGS__))
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#define ft_printf_ln(table, ...) \
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(( 0 ? fprintf(stderr, __VA_ARGS__) : 1), ft_printf_ln_impl(table, __VA_ARGS__))
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#endif
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FT_EXTERN int ft_write(FTABLE *table, const char *cell_content);
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FT_EXTERN int ft_write_ln(FTABLE *table, const char *cell_content);
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#define FT_NWRITE(table, ...)\
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(0 ? CHECK_IF_ARGS_ARE_STRINGS(__VA_ARGS__) : ft_nwrite(table, PP_NARG(__VA_ARGS__), __VA_ARGS__))
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#define FT_NWRITE_LN(table, ...)\
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(0 ? CHECK_IF_ARGS_ARE_STRINGS(__VA_ARGS__) : ft_nwrite_ln(table, PP_NARG(__VA_ARGS__), __VA_ARGS__))
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FT_EXTERN int ft_nwrite(FTABLE *table, size_t n, const char *cell_content, ...);
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FT_EXTERN int ft_nwrite_ln(FTABLE *table, size_t n, const char *cell_content, ...);
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FT_EXTERN int ft_row_write(FTABLE *table, size_t cols, const char *row_cells[]);
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FT_EXTERN int ft_row_write_ln(FTABLE *table, size_t cols, const char *row_cells[]);
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#if !defined(__cplusplus) && !defined(FT_MICROSOFT_COMPILER)
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FT_EXTERN int ft_s_table_write(FTABLE *table, size_t rows, size_t cols, const char *table_cells[rows][cols]);
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FT_EXTERN int ft_s_table_write_ln(FTABLE *table, size_t rows, size_t cols, const char *table_cells[rows][cols]);
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FT_EXTERN int ft_table_write(FTABLE *table, size_t rows, size_t cols, const char * * table_cells[rows]);
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FT_EXTERN int ft_table_write_ln(FTABLE *table, size_t rows, size_t cols, const char * * table_cells[rows]);
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#endif
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/**
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* Add separator after the current row.
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*
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* @param table
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* Formatted table.
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* @return
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* - 0: Success; separator was added.
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* - (-1): !!!!!!!! todo
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*/
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FT_EXTERN int ft_add_separator(FTABLE *table);
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/**
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* Convert table to string representation.
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*
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* FTABLE has ownership of the returned pointer. So there is no need to
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* free it. To take ownership user should explicitly copy the returned
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* string with strdup or similar functions. Returned pointer remaines valid
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* until table is destroyed with ft_destroy_table or other invocations of
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* ft_to_string.
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*
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* @param table
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* Formatted table.
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* @return
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* The pointer to the string representation of formatted table, on success.
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* NULL on error with ft_errno set appropriately.
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*/
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FT_EXTERN const char *ft_to_string(const FTABLE *table);
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struct ft_border_chars {
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char top_border_ch;
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char separator_ch;
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char bottom_border_ch;
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char side_border_ch;
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char out_intersect_ch;
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char in_intersect_ch;
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};
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struct ft_border_style {
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struct ft_border_chars border_chs;
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struct ft_border_chars header_border_chs;
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char hor_separator_char;
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};
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/**
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* Built-in table border styles
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*/
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extern struct ft_border_style *FT_BASIC_STYLE;
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extern struct ft_border_style *FT_SIMPLE_STYLE;
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extern struct ft_border_style *FT_PLAIN_STYLE;
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extern struct ft_border_style *FT_DOT_STYLE;
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extern struct ft_border_style *FT_EMPTY_STYLE;
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/**
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* Set default border style for all new formatted tables.
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*
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* @param style
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* Pointer to border style
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* @return
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* - 0: Success; default border style was changed.
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* - (-1): !!!!!!!! todo
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*/
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FT_EXTERN int ft_set_default_border_style(struct ft_border_style *style);
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/**
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* Set border style for the table.
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*
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* @param table
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* A pointer to the FTABLE structure
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* @param style
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* Pointer to border style
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* @return
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* - 0: Success; table border style was changed.
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* - (-1): !!!!!!!! todo
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*/
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FT_EXTERN int ft_set_border_style(FTABLE *table, struct ft_border_style *style);
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/**
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* Special macros to define cell position (row and column)
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*/
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#define FT_ANY_COLUMN (UINT_MAX)
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#define FT_CUR_COLUMN (UINT_MAX - 1)
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#define FT_ANY_ROW (UINT_MAX)
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#define FT_CUR_ROW (UINT_MAX - 1)
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/**
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* Cell options identifiers
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*/
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#define FT_COPT_MIN_WIDTH (0x01U << 0) /**< Minimum width */
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#define FT_COPT_TEXT_ALIGN (0x01U << 1) /**< Text alignmemnt */
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#define FT_COPT_TOP_PADDING (0x01U << 2) /**< Top padding for cell content */
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#define FT_COPT_BOTTOM_PADDING (0x01U << 3) /**< Bottom padding for cell content */
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#define FT_COPT_LEFT_PADDING (0x01U << 4) /**< Left padding for cell content */
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#define FT_COPT_RIGHT_PADDING (0x01U << 5) /**< Right padding for cell content */
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#define FT_COPT_EMPTY_STR_HEIGHT (0x01U << 6) /**< Height of empty cell */
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#define FT_COPT_ROW_TYPE (0x01U << 7) /**< Row type */
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/**
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* Alignment of cell content
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*/
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enum ft_text_alignment {
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FT_ALIGNED_LEFT,
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FT_ALIGNED_CENTER,
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FT_ALIGNED_RIGHT
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};
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/**
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* Type of table row
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*/
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enum ft_row_type {
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FT_ROW_COMMON,
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FT_ROW_HEADER
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};
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/**
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* Set default cell option for all new formatted tables.
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*
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* @param option
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* Cell option identifier
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* @param value
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* Cell option value
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* @return
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* - 0: Success; default cell option was changed.
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* - (-1): !!!!!!!! todo
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*/
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FT_EXTERN int ft_set_default_cell_option(uint32_t option, int value);
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/**
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* Set option for the specified cell of the table.
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*
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* @param table
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* A pointer to the FTABLE structure
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* @param row
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* Cell row
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* @param col
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* Cell column
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* @param option
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* Cell option identifier
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* @param value
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* Cell option value
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* @return
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* - 0: Success; cell option was changed.
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* - (-1): !!!!!!!! todo
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*/
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FT_EXTERN int ft_set_cell_option(FTABLE *table, unsigned row, unsigned col, uint32_t option, int value);
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/**
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* Table options identifiers
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*/
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#define FT_TOPT_LEFT_MARGIN (0x01U << 0)
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#define FT_TOPT_TOP_MARGIN (0x01U << 1)
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#define FT_TOPT_RIGHT_MARGIN (0x01U << 2)
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#define FT_TOPT_BOTTOM_MARGIN (0x01U << 3)
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/**
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* Set default table option.
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*
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* @param option
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* Table option identifier
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* @param value
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* Table option value
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* @return
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* - 0: Success; default table option was changed.
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* - (-1): !!!!!!!! todo
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*/
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FT_EXTERN int ft_set_default_tbl_option(uint32_t option, int value);
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/**
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* Set table option.
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*
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* @param table
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* A pointer to the FTABLE structure
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* @param option
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* Table option identifier
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* @param value
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* Table option value
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* @return
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* - 0: Success; default table option was changed.
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* - (-1): !!!!!!!! todo
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*/
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FT_EXTERN int ft_set_tbl_option(FTABLE *table, uint32_t option, int value);
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/*
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* WChar support
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*/
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#ifdef FT_HAVE_WCHAR
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FT_EXTERN int ft_wwrite(FTABLE *table, const wchar_t *cell_content);
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FT_EXTERN int ft_wwrite_ln(FTABLE *table, const wchar_t *cell_content);
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#define FT_NWWRITE(table, ...)\
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(0 ? CHECK_IF_ARGS_ARE_WSTRINGS(__VA_ARGS__) : ft_nwwrite(table, PP_NARG(__VA_ARGS__), __VA_ARGS__))
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#define FT_NWWRITE_LN(table, ...)\
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(0 ? CHECK_IF_ARGS_ARE_WSTRINGS(__VA_ARGS__) : ft_nwwrite_ln(table, PP_NARG(__VA_ARGS__), __VA_ARGS__))
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FT_EXTERN int ft_nwwrite(FTABLE *table, size_t n, const wchar_t *cell_content, ...);
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FT_EXTERN int ft_nwwrite_ln(FTABLE *table, size_t n, const wchar_t *cell_content, ...);
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FT_EXTERN int ft_row_wwrite(FTABLE *table, size_t cols, const wchar_t *row_cells[]);
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FT_EXTERN int ft_row_wwrite_ln(FTABLE *table, size_t cols, const wchar_t *row_cells[]);
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FT_EXTERN const wchar_t *ft_to_wstring(const FTABLE *table);
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#endif
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FT_END_DECLS
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#endif /* LIBFORT_H */
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