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package ansi
// SelectCharacterSet sets the G-set character designator to the specified
// character set.
//
// ESC Ps Pd
//
// Where Ps is the G-set character designator, and Pd is the identifier.
// For 94-character sets, the designator can be one of:
// - ( G0
// - ) G1
// - * G2
// - + G3
//
// For 96-character sets, the designator can be one of:
// - - G1
// - . G2
// - / G3
//
// Some common 94-character sets are:
// - 0 DEC Special Drawing Set
// - A United Kingdom (UK)
// - B United States (USASCII)
//
// Examples:
//
// ESC ( B Select character set G0 = United States (USASCII)
// ESC ( 0 Select character set G0 = Special Character and Line Drawing Set
// ESC ) 0 Select character set G1 = Special Character and Line Drawing Set
// ESC * A Select character set G2 = United Kingdom (UK)
//
// See: https://vt100.net/docs/vt510-rm/SCS.html
func SelectCharacterSet(gset byte, charset byte) string {
return "\x1b" + string(gset) + string(charset)
}
// SCS is an alias for SelectCharacterSet.
func SCS(gset byte, charset byte) string {
return SelectCharacterSet(gset, charset)
}
// Locking Shift 1 Right (LS1R) shifts G1 into GR character set.
const LS1R = "\x1b~"
// Locking Shift 2 (LS2) shifts G2 into GL character set.
const LS2 = "\x1bn"
// Locking Shift 2 Right (LS2R) shifts G2 into GR character set.
const LS2R = "\x1b}"
// Locking Shift 3 (LS3) shifts G3 into GL character set.
const LS3 = "\x1bo"
// Locking Shift 3 Right (LS3R) shifts G3 into GR character set.
const LS3R = "\x1b|"
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