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terminfo.go
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package tea
import (
"strings"
"github.com/xo/terminfo"
)
func buildTerminfoKeys(flags int, term string) map[string]Key {
table := make(map[string]Key)
ti, _ := terminfo.Load(term)
if ti == nil {
return table
}
tiTable := defaultTerminfoKeys(flags)
// Default keys
for name, seq := range ti.StringCapsShort() {
if !strings.HasPrefix(name, "k") || len(seq) == 0 {
continue
}
if k, ok := tiTable[name]; ok {
table[string(seq)] = k
}
}
// Extended keys
for name, seq := range ti.ExtStringCapsShort() {
if !strings.HasPrefix(name, "k") || len(seq) == 0 {
continue
}
if k, ok := tiTable[name]; ok {
table[string(seq)] = k
}
}
return table
}
// This returns a map of terminfo keys to key events. It's a mix of ncurses
// terminfo default and user-defined key capabilities.
// Upper-case caps that are defined in the default terminfo database are
// - kNXT
// - kPRV
// - kHOM
// - kEND
// - kDC
// - kIC
// - kLFT
// - kRIT
//
// See https://man7.org/linux/man-pages/man5/terminfo.5.html
// See https://github.com/mirror/ncurses/blob/master/include/Caps-ncurses
func defaultTerminfoKeys(flags int) map[string]Key {
keys := map[string]Key{
"kcuu1": {Type: KeyUp},
"kUP": {Type: KeyUp, Mod: ModShift},
"kUP3": {Type: KeyUp, Mod: ModAlt},
"kUP4": {Type: KeyUp, Mod: ModShift | ModAlt},
"kUP5": {Type: KeyUp, Mod: ModCtrl},
"kUP6": {Type: KeyUp, Mod: ModShift | ModCtrl},
"kUP7": {Type: KeyUp, Mod: ModAlt | ModCtrl},
"kUP8": {Type: KeyUp, Mod: ModShift | ModAlt | ModCtrl},
"kcud1": {Type: KeyDown},
"kDN": {Type: KeyDown, Mod: ModShift},
"kDN3": {Type: KeyDown, Mod: ModAlt},
"kDN4": {Type: KeyDown, Mod: ModShift | ModAlt},
"kDN5": {Type: KeyDown, Mod: ModCtrl},
"kDN7": {Type: KeyDown, Mod: ModAlt | ModCtrl},
"kDN6": {Type: KeyDown, Mod: ModShift | ModCtrl},
"kDN8": {Type: KeyDown, Mod: ModShift | ModAlt | ModCtrl},
"kcub1": {Type: KeyLeft},
"kLFT": {Type: KeyLeft, Mod: ModShift},
"kLFT3": {Type: KeyLeft, Mod: ModAlt},
"kLFT4": {Type: KeyLeft, Mod: ModShift | ModAlt},
"kLFT5": {Type: KeyLeft, Mod: ModCtrl},
"kLFT6": {Type: KeyLeft, Mod: ModShift | ModCtrl},
"kLFT7": {Type: KeyLeft, Mod: ModAlt | ModCtrl},
"kLFT8": {Type: KeyLeft, Mod: ModShift | ModAlt | ModCtrl},
"kcuf1": {Type: KeyRight},
"kRIT": {Type: KeyRight, Mod: ModShift},
"kRIT3": {Type: KeyRight, Mod: ModAlt},
"kRIT4": {Type: KeyRight, Mod: ModShift | ModAlt},
"kRIT5": {Type: KeyRight, Mod: ModCtrl},
"kRIT6": {Type: KeyRight, Mod: ModShift | ModCtrl},
"kRIT7": {Type: KeyRight, Mod: ModAlt | ModCtrl},
"kRIT8": {Type: KeyRight, Mod: ModShift | ModAlt | ModCtrl},
"kich1": {Type: KeyInsert},
"kIC": {Type: KeyInsert, Mod: ModShift},
"kIC3": {Type: KeyInsert, Mod: ModAlt},
"kIC4": {Type: KeyInsert, Mod: ModShift | ModAlt},
"kIC5": {Type: KeyInsert, Mod: ModCtrl},
"kIC6": {Type: KeyInsert, Mod: ModShift | ModCtrl},
"kIC7": {Type: KeyInsert, Mod: ModAlt | ModCtrl},
"kIC8": {Type: KeyInsert, Mod: ModShift | ModAlt | ModCtrl},
"kdch1": {Type: KeyDelete},
"kDC": {Type: KeyDelete, Mod: ModShift},
"kDC3": {Type: KeyDelete, Mod: ModAlt},
"kDC4": {Type: KeyDelete, Mod: ModShift | ModAlt},
"kDC5": {Type: KeyDelete, Mod: ModCtrl},
"kDC6": {Type: KeyDelete, Mod: ModShift | ModCtrl},
"kDC7": {Type: KeyDelete, Mod: ModAlt | ModCtrl},
"kDC8": {Type: KeyDelete, Mod: ModShift | ModAlt | ModCtrl},
"khome": {Type: KeyHome},
"kHOM": {Type: KeyHome, Mod: ModShift},
"kHOM3": {Type: KeyHome, Mod: ModAlt},
"kHOM4": {Type: KeyHome, Mod: ModShift | ModAlt},
"kHOM5": {Type: KeyHome, Mod: ModCtrl},
"kHOM6": {Type: KeyHome, Mod: ModShift | ModCtrl},
"kHOM7": {Type: KeyHome, Mod: ModAlt | ModCtrl},
"kHOM8": {Type: KeyHome, Mod: ModShift | ModAlt | ModCtrl},
"kend": {Type: KeyEnd},
"kEND": {Type: KeyEnd, Mod: ModShift},
"kEND3": {Type: KeyEnd, Mod: ModAlt},
"kEND4": {Type: KeyEnd, Mod: ModShift | ModAlt},
"kEND5": {Type: KeyEnd, Mod: ModCtrl},
"kEND6": {Type: KeyEnd, Mod: ModShift | ModCtrl},
"kEND7": {Type: KeyEnd, Mod: ModAlt | ModCtrl},
"kEND8": {Type: KeyEnd, Mod: ModShift | ModAlt | ModCtrl},
"kpp": {Type: KeyPgUp},
"kprv": {Type: KeyPgUp},
"kPRV": {Type: KeyPgUp, Mod: ModShift},
"kPRV3": {Type: KeyPgUp, Mod: ModAlt},
"kPRV4": {Type: KeyPgUp, Mod: ModShift | ModAlt},
"kPRV5": {Type: KeyPgUp, Mod: ModCtrl},
"kPRV6": {Type: KeyPgUp, Mod: ModShift | ModCtrl},
"kPRV7": {Type: KeyPgUp, Mod: ModAlt | ModCtrl},
"kPRV8": {Type: KeyPgUp, Mod: ModShift | ModAlt | ModCtrl},
"knp": {Type: KeyPgDown},
"knxt": {Type: KeyPgDown},
"kNXT": {Type: KeyPgDown, Mod: ModShift},
"kNXT3": {Type: KeyPgDown, Mod: ModAlt},
"kNXT4": {Type: KeyPgDown, Mod: ModShift | ModAlt},
"kNXT5": {Type: KeyPgDown, Mod: ModCtrl},
"kNXT6": {Type: KeyPgDown, Mod: ModShift | ModCtrl},
"kNXT7": {Type: KeyPgDown, Mod: ModAlt | ModCtrl},
"kNXT8": {Type: KeyPgDown, Mod: ModShift | ModAlt | ModCtrl},
"kbs": {Type: KeyBackspace},
"kcbt": {Type: KeyTab, Mod: ModShift},
// Function keys
// This only includes the first 12 function keys. The rest are treated
// as modifiers of the first 12.
// Take a look at XTerm modifyFunctionKeys
//
// XXX: To use unambiguous function keys, use fixterms or kitty clipboard.
//
// See https://invisible-island.net/xterm/manpage/xterm.html#VT100-Widget-Resources:modifyFunctionKeys
// See https://invisible-island.net/xterm/terminfo.html
"kf1": {Type: KeyF1},
"kf2": {Type: KeyF2},
"kf3": {Type: KeyF3},
"kf4": {Type: KeyF4},
"kf5": {Type: KeyF5},
"kf6": {Type: KeyF6},
"kf7": {Type: KeyF7},
"kf8": {Type: KeyF8},
"kf9": {Type: KeyF9},
"kf10": {Type: KeyF10},
"kf11": {Type: KeyF11},
"kf12": {Type: KeyF12},
"kf13": {Type: KeyF1, Mod: ModShift},
"kf14": {Type: KeyF2, Mod: ModShift},
"kf15": {Type: KeyF3, Mod: ModShift},
"kf16": {Type: KeyF4, Mod: ModShift},
"kf17": {Type: KeyF5, Mod: ModShift},
"kf18": {Type: KeyF6, Mod: ModShift},
"kf19": {Type: KeyF7, Mod: ModShift},
"kf20": {Type: KeyF8, Mod: ModShift},
"kf21": {Type: KeyF9, Mod: ModShift},
"kf22": {Type: KeyF10, Mod: ModShift},
"kf23": {Type: KeyF11, Mod: ModShift},
"kf24": {Type: KeyF12, Mod: ModShift},
"kf25": {Type: KeyF1, Mod: ModCtrl},
"kf26": {Type: KeyF2, Mod: ModCtrl},
"kf27": {Type: KeyF3, Mod: ModCtrl},
"kf28": {Type: KeyF4, Mod: ModCtrl},
"kf29": {Type: KeyF5, Mod: ModCtrl},
"kf30": {Type: KeyF6, Mod: ModCtrl},
"kf31": {Type: KeyF7, Mod: ModCtrl},
"kf32": {Type: KeyF8, Mod: ModCtrl},
"kf33": {Type: KeyF9, Mod: ModCtrl},
"kf34": {Type: KeyF10, Mod: ModCtrl},
"kf35": {Type: KeyF11, Mod: ModCtrl},
"kf36": {Type: KeyF12, Mod: ModCtrl},
"kf37": {Type: KeyF1, Mod: ModShift | ModCtrl},
"kf38": {Type: KeyF2, Mod: ModShift | ModCtrl},
"kf39": {Type: KeyF3, Mod: ModShift | ModCtrl},
"kf40": {Type: KeyF4, Mod: ModShift | ModCtrl},
"kf41": {Type: KeyF5, Mod: ModShift | ModCtrl},
"kf42": {Type: KeyF6, Mod: ModShift | ModCtrl},
"kf43": {Type: KeyF7, Mod: ModShift | ModCtrl},
"kf44": {Type: KeyF8, Mod: ModShift | ModCtrl},
"kf45": {Type: KeyF9, Mod: ModShift | ModCtrl},
"kf46": {Type: KeyF10, Mod: ModShift | ModCtrl},
"kf47": {Type: KeyF11, Mod: ModShift | ModCtrl},
"kf48": {Type: KeyF12, Mod: ModShift | ModCtrl},
"kf49": {Type: KeyF1, Mod: ModAlt},
"kf50": {Type: KeyF2, Mod: ModAlt},
"kf51": {Type: KeyF3, Mod: ModAlt},
"kf52": {Type: KeyF4, Mod: ModAlt},
"kf53": {Type: KeyF5, Mod: ModAlt},
"kf54": {Type: KeyF6, Mod: ModAlt},
"kf55": {Type: KeyF7, Mod: ModAlt},
"kf56": {Type: KeyF8, Mod: ModAlt},
"kf57": {Type: KeyF9, Mod: ModAlt},
"kf58": {Type: KeyF10, Mod: ModAlt},
"kf59": {Type: KeyF11, Mod: ModAlt},
"kf60": {Type: KeyF12, Mod: ModAlt},
"kf61": {Type: KeyF1, Mod: ModShift | ModAlt},
"kf62": {Type: KeyF2, Mod: ModShift | ModAlt},
"kf63": {Type: KeyF3, Mod: ModShift | ModAlt},
}
// Preserve F keys from F13 to F63 instead of using them for F-keys
// modifiers.
if flags&_FlagFKeys != 0 {
keys["kf13"] = Key{Type: KeyF13}
keys["kf14"] = Key{Type: KeyF14}
keys["kf15"] = Key{Type: KeyF15}
keys["kf16"] = Key{Type: KeyF16}
keys["kf17"] = Key{Type: KeyF17}
keys["kf18"] = Key{Type: KeyF18}
keys["kf19"] = Key{Type: KeyF19}
keys["kf20"] = Key{Type: KeyF20}
keys["kf21"] = Key{Type: KeyF21}
keys["kf22"] = Key{Type: KeyF22}
keys["kf23"] = Key{Type: KeyF23}
keys["kf24"] = Key{Type: KeyF24}
keys["kf25"] = Key{Type: KeyF25}
keys["kf26"] = Key{Type: KeyF26}
keys["kf27"] = Key{Type: KeyF27}
keys["kf28"] = Key{Type: KeyF28}
keys["kf29"] = Key{Type: KeyF29}
keys["kf30"] = Key{Type: KeyF30}
keys["kf31"] = Key{Type: KeyF31}
keys["kf32"] = Key{Type: KeyF32}
keys["kf33"] = Key{Type: KeyF33}
keys["kf34"] = Key{Type: KeyF34}
keys["kf35"] = Key{Type: KeyF35}
keys["kf36"] = Key{Type: KeyF36}
keys["kf37"] = Key{Type: KeyF37}
keys["kf38"] = Key{Type: KeyF38}
keys["kf39"] = Key{Type: KeyF39}
keys["kf40"] = Key{Type: KeyF40}
keys["kf41"] = Key{Type: KeyF41}
keys["kf42"] = Key{Type: KeyF42}
keys["kf43"] = Key{Type: KeyF43}
keys["kf44"] = Key{Type: KeyF44}
keys["kf45"] = Key{Type: KeyF45}
keys["kf46"] = Key{Type: KeyF46}
keys["kf47"] = Key{Type: KeyF47}
keys["kf48"] = Key{Type: KeyF48}
keys["kf49"] = Key{Type: KeyF49}
keys["kf50"] = Key{Type: KeyF50}
keys["kf51"] = Key{Type: KeyF51}
keys["kf52"] = Key{Type: KeyF52}
keys["kf53"] = Key{Type: KeyF53}
keys["kf54"] = Key{Type: KeyF54}
keys["kf55"] = Key{Type: KeyF55}
keys["kf56"] = Key{Type: KeyF56}
keys["kf57"] = Key{Type: KeyF57}
keys["kf58"] = Key{Type: KeyF58}
keys["kf59"] = Key{Type: KeyF59}
keys["kf60"] = Key{Type: KeyF60}
keys["kf61"] = Key{Type: KeyF61}
keys["kf62"] = Key{Type: KeyF62}
keys["kf63"] = Key{Type: KeyF63}
}
return keys
}