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Implemented SubWordRight, SubWordLeft, SelectSubWordRight, SelectSubWordLeft and DeleteSubWordRight, DeleteSubWordLeft

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This commit is contained in:
Massimo Mund
2024-05-14 08:59:08 +02:00
parent 889a841575
commit 5dbdf8c0e8
5 changed files with 253 additions and 3 deletions
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121
internal/buffer/cursor.go
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@@ -438,6 +438,127 @@ func (c *Cursor) WordLeft() {
c.Right()
}
// SubWordRight moves the cursor one sub-word to the right
func (c *Cursor) SubWordRight() {
if util.IsWhitespace(c.RuneUnder(c.X)) {
for util.IsWhitespace(c.RuneUnder(c.X)) {
if c.X == util.CharacterCount(c.buf.LineBytes(c.Y)) {
c.Right()
return
}
c.Right()
}
return
}
if util.IsNonWordChar(c.RuneUnder(c.X)) && !util.IsWhitespace(c.RuneUnder(c.X)) {
for util.IsNonWordChar(c.RuneUnder(c.X)) && !util.IsWhitespace(c.RuneUnder(c.X)) {
if c.X == util.CharacterCount(c.buf.LineBytes(c.Y)) {
c.Right()
return
}
c.Right()
}
return
}
if util.IsSubwordDelimiter(c.RuneUnder(c.X)) {
for util.IsSubwordDelimiter(c.RuneUnder(c.X)) {
if c.X == util.CharacterCount(c.buf.LineBytes(c.Y)) {
c.Right()
return
}
c.Right()
}
if util.IsWhitespace(c.RuneUnder(c.X)) {
return
}
}
if c.X == util.CharacterCount(c.buf.LineBytes(c.Y)) {
return
}
if util.IsUpperLetter(c.RuneUnder(c.X)) &&
util.IsUpperLetter(c.RuneUnder(c.X+1)) {
for util.IsUpperAlphanumeric(c.RuneUnder(c.X)) {
if c.X == util.CharacterCount(c.buf.LineBytes(c.Y)) {
return
}
c.Right()
}
if util.IsLowerAlphanumeric(c.RuneUnder(c.X)) {
c.Left()
}
} else {
c.Right()
for util.IsLowerAlphanumeric(c.RuneUnder(c.X)) {
if c.X == util.CharacterCount(c.buf.LineBytes(c.Y)) {
return
}
c.Right()
}
}
}
// SubWordLeft moves the cursor one sub-word to the left
func (c *Cursor) SubWordLeft() {
c.Left()
if util.IsWhitespace(c.RuneUnder(c.X)) {
for util.IsWhitespace(c.RuneUnder(c.X)) {
if c.X == 0 {
return
}
c.Left()
}
c.Right()
return
}
if util.IsNonWordChar(c.RuneUnder(c.X)) && !util.IsWhitespace(c.RuneUnder(c.X)) {
for util.IsNonWordChar(c.RuneUnder(c.X)) && !util.IsWhitespace(c.RuneUnder(c.X)) {
if c.X == 0 {
return
}
c.Left()
}
c.Right()
return
}
if util.IsSubwordDelimiter(c.RuneUnder(c.X)) {
for util.IsSubwordDelimiter(c.RuneUnder(c.X)) {
if c.X == 0 {
return
}
c.Left()
}
if util.IsWhitespace(c.RuneUnder(c.X)) {
c.Right()
return
}
}
if c.X == 0 {
return
}
if util.IsUpperLetter(c.RuneUnder(c.X)) &&
util.IsUpperLetter(c.RuneUnder(c.X-1)) {
for util.IsUpperAlphanumeric(c.RuneUnder(c.X)) {
if c.X == 0 {
return
}
c.Left()
}
if !util.IsUpperAlphanumeric(c.RuneUnder(c.X)) {
c.Right()
}
} else {
for util.IsLowerAlphanumeric(c.RuneUnder(c.X)) {
if c.X == 0 {
return
}
c.Left()
}
if !util.IsAlphanumeric(c.RuneUnder(c.X)) {
c.Right()
}
}
}
// RuneUnder returns the rune under the given x position
func (c *Cursor) RuneUnder(x int) rune {
line := c.buf.LineBytes(c.Y)