mirror of
https://gitea.com/Sirherobrine23/tea.git
synced 2024-08-21 22:37:26 +00:00
Merge branch 'master' into use-glamour select Glamour Theme based on BackgroundColor Merge branch 'master' into use-glamour Merge branch 'master' into use-glamour update termev update go.mod label color colorate use glamour for issue content Vendor: Add glamour Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com> Co-authored-by: 6543 <6543@obermui.de> Reviewed-on: https://gitea.com/gitea/tea/pulls/181 Reviewed-by: techknowlogick <techknowlogick@gitea.io> Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
210 lines
4.7 KiB
Go
210 lines
4.7 KiB
Go
package text
|
|
|
|
import (
|
|
"bytes"
|
|
"github.com/yuin/goldmark/util"
|
|
)
|
|
|
|
var space = []byte(" ")
|
|
|
|
// A Segment struct holds information about source positions.
|
|
type Segment struct {
|
|
// Start is a start position of the segment.
|
|
Start int
|
|
|
|
// Stop is a stop position of the segment.
|
|
// This value should be excluded.
|
|
Stop int
|
|
|
|
// Padding is a padding length of the segment.
|
|
Padding int
|
|
}
|
|
|
|
// NewSegment return a new Segment.
|
|
func NewSegment(start, stop int) Segment {
|
|
return Segment{
|
|
Start: start,
|
|
Stop: stop,
|
|
Padding: 0,
|
|
}
|
|
}
|
|
|
|
// NewSegmentPadding returns a new Segment with the given padding.
|
|
func NewSegmentPadding(start, stop, n int) Segment {
|
|
return Segment{
|
|
Start: start,
|
|
Stop: stop,
|
|
Padding: n,
|
|
}
|
|
}
|
|
|
|
// Value returns a value of the segment.
|
|
func (t *Segment) Value(buffer []byte) []byte {
|
|
if t.Padding == 0 {
|
|
return buffer[t.Start:t.Stop]
|
|
}
|
|
result := make([]byte, 0, t.Padding+t.Stop-t.Start+1)
|
|
result = append(result, bytes.Repeat(space, t.Padding)...)
|
|
return append(result, buffer[t.Start:t.Stop]...)
|
|
}
|
|
|
|
// Len returns a length of the segment.
|
|
func (t *Segment) Len() int {
|
|
return t.Stop - t.Start + t.Padding
|
|
}
|
|
|
|
// Between returns a segment between this segment and the given segment.
|
|
func (t *Segment) Between(other Segment) Segment {
|
|
if t.Stop != other.Stop {
|
|
panic("invalid state")
|
|
}
|
|
return NewSegmentPadding(
|
|
t.Start,
|
|
other.Start,
|
|
t.Padding-other.Padding,
|
|
)
|
|
}
|
|
|
|
// IsEmpty returns true if this segment is empty, otherwise false.
|
|
func (t *Segment) IsEmpty() bool {
|
|
return t.Start >= t.Stop && t.Padding == 0
|
|
}
|
|
|
|
// TrimRightSpace returns a new segment by slicing off all trailing
|
|
// space characters.
|
|
func (t *Segment) TrimRightSpace(buffer []byte) Segment {
|
|
v := buffer[t.Start:t.Stop]
|
|
l := util.TrimRightSpaceLength(v)
|
|
if l == len(v) {
|
|
return NewSegment(t.Start, t.Start)
|
|
}
|
|
return NewSegmentPadding(t.Start, t.Stop-l, t.Padding)
|
|
}
|
|
|
|
// TrimLeftSpace returns a new segment by slicing off all leading
|
|
// space characters including padding.
|
|
func (t *Segment) TrimLeftSpace(buffer []byte) Segment {
|
|
v := buffer[t.Start:t.Stop]
|
|
l := util.TrimLeftSpaceLength(v)
|
|
return NewSegment(t.Start+l, t.Stop)
|
|
}
|
|
|
|
// TrimLeftSpaceWidth returns a new segment by slicing off leading space
|
|
// characters until the given width.
|
|
func (t *Segment) TrimLeftSpaceWidth(width int, buffer []byte) Segment {
|
|
padding := t.Padding
|
|
for ; width > 0; width-- {
|
|
if padding == 0 {
|
|
break
|
|
}
|
|
padding--
|
|
}
|
|
if width == 0 {
|
|
return NewSegmentPadding(t.Start, t.Stop, padding)
|
|
}
|
|
text := buffer[t.Start:t.Stop]
|
|
start := t.Start
|
|
for _, c := range text {
|
|
if start >= t.Stop-1 || width <= 0 {
|
|
break
|
|
}
|
|
if c == ' ' {
|
|
width--
|
|
} else if c == '\t' {
|
|
width -= 4
|
|
} else {
|
|
break
|
|
}
|
|
start++
|
|
}
|
|
if width < 0 {
|
|
padding = width * -1
|
|
}
|
|
return NewSegmentPadding(start, t.Stop, padding)
|
|
}
|
|
|
|
// WithStart returns a new Segment with same value except Start.
|
|
func (t *Segment) WithStart(v int) Segment {
|
|
return NewSegmentPadding(v, t.Stop, t.Padding)
|
|
}
|
|
|
|
// WithStop returns a new Segment with same value except Stop.
|
|
func (t *Segment) WithStop(v int) Segment {
|
|
return NewSegmentPadding(t.Start, v, t.Padding)
|
|
}
|
|
|
|
// ConcatPadding concats the padding to the given slice.
|
|
func (t *Segment) ConcatPadding(v []byte) []byte {
|
|
if t.Padding > 0 {
|
|
return append(v, bytes.Repeat(space, t.Padding)...)
|
|
}
|
|
return v
|
|
}
|
|
|
|
// Segments is a collection of the Segment.
|
|
type Segments struct {
|
|
values []Segment
|
|
}
|
|
|
|
// NewSegments return a new Segments.
|
|
func NewSegments() *Segments {
|
|
return &Segments{
|
|
values: nil,
|
|
}
|
|
}
|
|
|
|
// Append appends the given segment after the tail of the collection.
|
|
func (s *Segments) Append(t Segment) {
|
|
if s.values == nil {
|
|
s.values = make([]Segment, 0, 20)
|
|
}
|
|
s.values = append(s.values, t)
|
|
}
|
|
|
|
// AppendAll appends all elements of given segments after the tail of the collection.
|
|
func (s *Segments) AppendAll(t []Segment) {
|
|
if s.values == nil {
|
|
s.values = make([]Segment, 0, 20)
|
|
}
|
|
s.values = append(s.values, t...)
|
|
}
|
|
|
|
// Len returns the length of the collection.
|
|
func (s *Segments) Len() int {
|
|
if s.values == nil {
|
|
return 0
|
|
}
|
|
return len(s.values)
|
|
}
|
|
|
|
// At returns a segment at the given index.
|
|
func (s *Segments) At(i int) Segment {
|
|
return s.values[i]
|
|
}
|
|
|
|
// Set sets the given Segment.
|
|
func (s *Segments) Set(i int, v Segment) {
|
|
s.values[i] = v
|
|
}
|
|
|
|
// SetSliced replace the collection with a subsliced value.
|
|
func (s *Segments) SetSliced(lo, hi int) {
|
|
s.values = s.values[lo:hi]
|
|
}
|
|
|
|
// Sliced returns a subslice of the collection.
|
|
func (s *Segments) Sliced(lo, hi int) []Segment {
|
|
return s.values[lo:hi]
|
|
}
|
|
|
|
// Clear delete all element of the collection.
|
|
func (s *Segments) Clear() {
|
|
s.values = nil
|
|
}
|
|
|
|
// Unshift insert the given Segment to head of the collection.
|
|
func (s *Segments) Unshift(v Segment) {
|
|
s.values = append(s.values[0:1], s.values[0:]...)
|
|
s.values[0] = v
|
|
}
|