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/*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
*/
#ifndef NVIM_ASCII_H
#define NVIM_ASCII_H
#include <stdbool.h>
#include "func_attr.h"
// Definitions of various common control characters.
#define CharOrd(x) ((x) < 'a' ? (x) - 'A' : (x) - 'a')
#define CharOrdLow(x) ((x) - 'a')
#define CharOrdUp(x) ((x) - 'A')
#define ROT13(c, a) (((((c) - (a)) + 13) % 26) + (a))
#define NUL '\000'
#define BELL '\007'
#define BS '\010'
#define TAB '\011'
#define NL '\012'
#define NL_STR (char_u *)"\012"
#define FF '\014'
#define CAR '\015' /* CR is used by Mac OS X */
#define ESC '\033'
#define ESC_STR (char_u *)"\033"
#define ESC_STR_nc "\033"
#define DEL 0x7f
#define DEL_STR (char_u *)"\177"
#define CSI 0x9b /* Control Sequence Introducer */
#define CSI_STR "\233"
#define DCS 0x90 /* Device Control String */
#define STERM 0x9c /* String Terminator */
#define POUND 0xA3
#define Ctrl_chr(x) (TOUPPER_ASC(x) ^ 0x40) /* '?' -> DEL, '@' -> ^@, etc. */
#define Meta(x) ((x) | 0x80)
#define CTRL_F_STR "\006"
#define CTRL_H_STR "\010"
#define CTRL_V_STR "\026"
#define Ctrl_AT 0 /* @ */
#define Ctrl_A 1
#define Ctrl_B 2
#define Ctrl_C 3
#define Ctrl_D 4
#define Ctrl_E 5
#define Ctrl_F 6
#define Ctrl_G 7
#define Ctrl_H 8
#define Ctrl_I 9
#define Ctrl_J 10
#define Ctrl_K 11
#define Ctrl_L 12
#define Ctrl_M 13
#define Ctrl_N 14
#define Ctrl_O 15
#define Ctrl_P 16
#define Ctrl_Q 17
#define Ctrl_R 18
#define Ctrl_S 19
#define Ctrl_T 20
#define Ctrl_U 21
#define Ctrl_V 22
#define Ctrl_W 23
#define Ctrl_X 24
#define Ctrl_Y 25
#define Ctrl_Z 26
/* CTRL- [ Left Square Bracket == ESC*/
#define Ctrl_BSL 28 /* \ BackSLash */
#define Ctrl_RSB 29 /* ] Right Square Bracket */
#define Ctrl_HAT 30 /* ^ */
#define Ctrl__ 31
/*
* Character that separates dir names in a path.
*/
#ifdef BACKSLASH_IN_FILENAME
# define PATHSEP psepc
# define PATHSEPSTR pseps
#else
# define PATHSEP '/'
# define PATHSEPSTR "/"
#endif
static inline bool ascii_iswhite(int c) FUNC_ATTR_ALWAYS_INLINE FUNC_ATTR_CONST;
static inline bool ascii_isdigit(int c) FUNC_ATTR_ALWAYS_INLINE FUNC_ATTR_CONST;
static inline bool ascii_isxdigit(int c) FUNC_ATTR_ALWAYS_INLINE FUNC_ATTR_CONST;
static inline bool ascii_isspace(int x) FUNC_ATTR_ALWAYS_INLINE FUNC_ATTR_CONST;
/// ascii_iswhite() is used for "^" and the like. It differs from isspace()
/// because it doesn't include <CR> and <LF> and the like.
static inline bool ascii_iswhite(int c)
{
return c == ' ' || c == '\t';
}
/// Use our own isdigit() replacement, because on MS-Windows isdigit() returns
/// non-zero for superscript 1. Also avoids that isdigit() crashes for numbers
/// below 0 and above 255.
static inline bool ascii_isdigit(int c)
{
return c >= '0' && c <= '9';
}
/// Variant of isxdigit() that can handle characters > 0x100.
/// We don't use isxdigit() here, because on some systems it also considers
/// superscript 1 to be a digit.
///
/// @param c
/// @return TRUE if the character is a hexadecimal digit.
static inline bool ascii_isxdigit(int c)
{
return (c >= '0' && c <= '9')
|| (c >= 'a' && c <= 'f')
|| (c >= 'A' && c <= 'F');
}
/// Vim has its own isspace() function, because on some machines isspace()
/// can't handle characters above 128.
static inline bool ascii_isspace(int x)
{
return (x >= 9 && x <= 13) || x == ' ';
}
#endif /* NVIM_ASCII_H */
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