mirror of https://github.com/Hilbis/Hilbish
57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
package readline
|
|
|
|
import "regexp"
|
|
|
|
// SetHintText - a nasty function to force writing a new hint text. It does not update helpers, it just renders
|
|
// them, so the hint will survive until the helpers (thus including the hint) will be updated/recomputed.
|
|
func (rl *Instance) SetHintText(s string) {
|
|
rl.hintText = []rune(s)
|
|
rl.renderHelpers()
|
|
}
|
|
|
|
func (rl *Instance) getHintText() {
|
|
|
|
if !rl.modeAutoFind && !rl.modeTabFind {
|
|
// Return if no hints provided by the user/engine
|
|
if rl.HintText == nil {
|
|
rl.resetHintText()
|
|
return
|
|
}
|
|
// The hint text also works with the virtual completion line system.
|
|
// This way, the hint is also refreshed depending on what we are pointing
|
|
// at with our cursor.
|
|
rl.hintText = rl.HintText(rl.getCompletionLine())
|
|
}
|
|
}
|
|
|
|
// writeHintText - only writes the hint text and computes its offsets.
|
|
func (rl *Instance) writeHintText() {
|
|
if len(rl.hintText) == 0 {
|
|
rl.hintY = 0
|
|
return
|
|
}
|
|
|
|
width := GetTermWidth()
|
|
|
|
// Wraps the line, and counts the number of newlines in the string,
|
|
// adjusting the offset as well.
|
|
re := regexp.MustCompile(`\r?\n`)
|
|
newlines := re.Split(string(rl.hintText), -1)
|
|
offset := len(newlines)
|
|
|
|
wrapped, hintLen := WrapText(string(rl.hintText), width)
|
|
offset += hintLen
|
|
rl.hintY = offset
|
|
|
|
hintText := string(wrapped)
|
|
|
|
if len(hintText) > 0 {
|
|
print("\r" + rl.HintFormatting + string(hintText) + seqReset)
|
|
}
|
|
}
|
|
|
|
func (rl *Instance) resetHintText() {
|
|
rl.hintY = 0
|
|
rl.hintText = []rune{}
|
|
}
|