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40be47e0fa
* refactor: format all C files under nvim
* refactor: disable formatting for Vim-owned files:
* src/nvim/indent_c.c
* src/nvim/regexp.c
* src/nvim/regexp_nfa.c
* src/nvim/testdir/samples/memfile_test.c
94 lines
2.6 KiB
C
94 lines
2.6 KiB
C
#ifndef NVIM_MBYTE_H
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#define NVIM_MBYTE_H
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#include <stdbool.h>
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#include <stdint.h>
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#include <string.h>
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#include "nvim/func_attr.h"
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#include "nvim/iconv.h"
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#include "nvim/os/os_defs.h" // For indirect
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#include "nvim/types.h" // for char_u
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/*
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* Return byte length of character that starts with byte "b".
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* Returns 1 for a single-byte character.
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* MB_BYTE2LEN_CHECK() can be used to count a special key as one byte.
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* Don't call MB_BYTE2LEN(b) with b < 0 or b > 255!
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*/
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#define MB_BYTE2LEN(b) utf8len_tab[b]
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#define MB_BYTE2LEN_CHECK(b) (((b) < 0 || (b) > 255) ? 1 : utf8len_tab[b])
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// max length of an unicode char
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#define MB_MAXCHAR 6
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// properties used in enc_canon_table[] (first three mutually exclusive)
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#define ENC_8BIT 0x01
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#define ENC_DBCS 0x02
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#define ENC_UNICODE 0x04
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#define ENC_ENDIAN_B 0x10 // Unicode: Big endian
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#define ENC_ENDIAN_L 0x20 // Unicode: Little endian
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#define ENC_2BYTE 0x40 // Unicode: UCS-2
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#define ENC_4BYTE 0x80 // Unicode: UCS-4
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#define ENC_2WORD 0x100 // Unicode: UTF-16
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#define ENC_LATIN1 0x200 // Latin1
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#define ENC_LATIN9 0x400 // Latin9
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#define ENC_MACROMAN 0x800 // Mac Roman (not Macro Man! :-)
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// TODO(bfredl): eventually we should keep only one of the namings
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#define mb_ptr2len utfc_ptr2len
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#define mb_char2len utf_char2len
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#define mb_char2cells utf_char2cells
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/// Flags for vimconv_T
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typedef enum {
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CONV_NONE = 0,
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CONV_TO_UTF8 = 1,
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CONV_9_TO_UTF8 = 2,
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CONV_TO_LATIN1 = 3,
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CONV_TO_LATIN9 = 4,
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CONV_ICONV = 5,
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} ConvFlags;
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#define MBYTE_NONE_CONV { \
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.vc_type = CONV_NONE, \
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.vc_factor = 1, \
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.vc_fail = false, \
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}
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/// Structure used for string conversions
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typedef struct {
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int vc_type; ///< Zero or more ConvFlags.
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int vc_factor; ///< Maximal expansion factor.
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#ifdef HAVE_ICONV
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iconv_t vc_fd; ///< Value for CONV_ICONV.
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#endif
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bool vc_fail; ///< What to do with invalid characters: if true, fail,
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///< otherwise use '?'.
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} vimconv_T;
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extern const uint8_t utf8len_tab_zero[256];
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extern const uint8_t utf8len_tab[256];
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#ifdef INCLUDE_GENERATED_DECLARATIONS
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# include "mbyte.h.generated.h"
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#endif
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static inline int mb_strcmp_ic(bool ic, const char *s1, const char *s2)
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REAL_FATTR_NONNULL_ALL REAL_FATTR_PURE REAL_FATTR_WARN_UNUSED_RESULT;
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/// Compare strings
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///
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/// @param[in] ic True if case is to be ignored.
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///
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/// @return 0 if s1 == s2, <0 if s1 < s2, >0 if s1 > s2.
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static inline int mb_strcmp_ic(bool ic, const char *s1, const char *s2)
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{
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return (ic ? mb_stricmp(s1, s2) : strcmp(s1, s2));
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}
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#endif // NVIM_MBYTE_H
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