Terminal colour flags

Packed foreground / background / attribute bits for terminal styling. More...

Macros
#define	R_CLR_FG_SHIFT   0
	Bit shift for the foreground colour nibble.
#define	R_CLR_BG_SHIFT   4
	Bit shift for the background colour nibble.
#define	R_CLR_FG_MASK   0x000F
	Mask isolating the FG nibble.
#define	R_CLR_BG_MASK   0x00F0
	Mask isolating the BG nibble.
#define	R_CLR_FMT_MASK   0xFF00
	Mask isolating the FMT bits.

Enumerations
enum	RColorFlags {   R_CLR_FG_BLACK = (R_CLR_BLACK << R_CLR_FG_SHIFT) , R_CLR_FG_RED = (R_CLR_RED << R_CLR_FG_SHIFT) , R_CLR_FG_GREEN = (R_CLR_GREEN << R_CLR_FG_SHIFT) , R_CLR_FG_YELLOW = (R_CLR_YELLOW << R_CLR_FG_SHIFT) ,   R_CLR_FG_BLUE = (R_CLR_BLUE << R_CLR_FG_SHIFT) , R_CLR_FG_MAGENTA = (R_CLR_MAGENTA << R_CLR_FG_SHIFT) , R_CLR_FG_CYAN = (R_CLR_CYAN << R_CLR_FG_SHIFT) , R_CLR_FG_WHITE = (R_CLR_WHITE << R_CLR_FG_SHIFT) ,   R_CLR_FG_EXT = (R_CLR_EXT << R_CLR_FG_SHIFT) , R_CLR_FG_DEFAULT = (R_CLR_DEFAULT << R_CLR_FG_SHIFT) , R_CLR_BG_BLACK = (R_CLR_BLACK << R_CLR_BG_SHIFT) , R_CLR_BG_RED = (R_CLR_RED << R_CLR_BG_SHIFT) ,   R_CLR_BG_GREEN = (R_CLR_GREEN << R_CLR_BG_SHIFT) , R_CLR_BG_YELLOW = (R_CLR_YELLOW << R_CLR_BG_SHIFT) , R_CLR_BG_BLUE = (R_CLR_BLUE << R_CLR_BG_SHIFT) , R_CLR_BG_MAGENTA = (R_CLR_MAGENTA << R_CLR_BG_SHIFT) ,   R_CLR_BG_CYAN = (R_CLR_CYAN << R_CLR_BG_SHIFT) , R_CLR_BG_WHITE = (R_CLR_WHITE << R_CLR_BG_SHIFT) , R_CLR_BG_EXT = (R_CLR_EXT << R_CLR_BG_SHIFT) , R_CLR_BG_DEFAULT = (R_CLR_DEFAULT << R_CLR_BG_SHIFT) ,   R_CLR_FMT_BOLD = 0x0100 , R_CLR_FMT_UNDERLINE = 0x0200 }
	Combined foreground / background / attribute flags. More...

Colour codes (pre-shift, share the same numeric values as ANSI SGR 30/40 range)
#define	R_CLR_BLACK   0
#define	R_CLR_RED   1
#define	R_CLR_GREEN   2
#define	R_CLR_YELLOW   3
#define	R_CLR_BLUE   4
#define	R_CLR_MAGENTA   5
#define	R_CLR_CYAN   6
#define	R_CLR_WHITE   7
#define	R_CLR_EXT   8
#define	R_CLR_DEFAULT   9

Detailed Description

Packed foreground / background / attribute bits for terminal styling.

Layout (16-bit RColorFlags):

• Bits 0-3: foreground colour (one of R_CLR_BLACK ... R_CLR_DEFAULT)
• Bits 4-7: background colour
• Bits 8+: format attributes (bold, underline)

The R_CLR_FG_* and R_CLR_BG_* enum values are pre-shifted so they can be OR'd together directly. r_tty_clr_to_str renders these into an ANSI SGR escape sequence.

Macro Definition Documentation

R_CLR_BLACK

#define R_CLR_BLACK   0

Colour code: black.

R_CLR_BLUE

#define R_CLR_BLUE   4

Colour code: blue.

R_CLR_CYAN

#define R_CLR_CYAN   6

Colour code: cyan.

R_CLR_DEFAULT

#define R_CLR_DEFAULT   9

Colour code: terminal default.

R_CLR_EXT

#define R_CLR_EXT   8

Colour code: extended (38/48 escape follows).

R_CLR_GREEN

#define R_CLR_GREEN   2

Colour code: green.

R_CLR_MAGENTA

#define R_CLR_MAGENTA   5

Colour code: magenta.

R_CLR_RED

#define R_CLR_RED   1

Colour code: red.

R_CLR_WHITE

#define R_CLR_WHITE   7

Colour code: white.

R_CLR_YELLOW

#define R_CLR_YELLOW   3

Colour code: yellow.

Enumeration Type Documentation

RColorFlags

enum RColorFlags

Combined foreground / background / attribute flags.

Combine an R_CLR_FG_*, an R_CLR_BG_* and any R_CLR_FMT_* flags with bitwise OR.

Enumerator
R_CLR_FG_BLACK	FG black.
R_CLR_FG_RED	FG red.
R_CLR_FG_GREEN	FG green.
R_CLR_FG_YELLOW	FG yellow.
R_CLR_FG_BLUE	FG blue.
R_CLR_FG_MAGENTA	FG magenta.
R_CLR_FG_CYAN	FG cyan.
R_CLR_FG_WHITE	FG white.
R_CLR_FG_EXT	FG extended.
R_CLR_FG_DEFAULT	FG terminal default.
R_CLR_BG_BLACK	BG black.
R_CLR_BG_RED	BG red.
R_CLR_BG_GREEN	BG green.
R_CLR_BG_YELLOW	BG yellow.
R_CLR_BG_BLUE	BG blue.
R_CLR_BG_MAGENTA	BG magenta.
R_CLR_BG_CYAN	BG cyan.
R_CLR_BG_WHITE	BG white.
R_CLR_BG_EXT	BG extended.
R_CLR_BG_DEFAULT	BG terminal default.
R_CLR_FMT_BOLD	Bold attribute.
R_CLR_FMT_UNDERLINE	Underline attribute.