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fix: resolves #498

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Resolves an issue whereby background colors were written to the terminal
output when colorization was applied.
This commit is contained in:
Chris Lane
2019-11-07 20:24:08 -05:00
parent e08a4f3cec
commit 50dc3c8b29
28 changed files with 492 additions and 33 deletions
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17
vendor/github.com/alecthomas/chroma/formatters/tty_indexed.go generated vendored
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@ -200,6 +200,7 @@ func findClosest(table *ttyTable, seeking chroma.Colour) chroma.Colour {
}
func styleToEscapeSequence(table *ttyTable, style *chroma.Style) map[chroma.TokenType]string {
style = clearBackground(style)
out := map[chroma.TokenType]string{}
for _, ttype := range style.Types() {
entry := style.Get(ttype)
@ -208,16 +209,22 @@ func styleToEscapeSequence(table *ttyTable, style *chroma.Style) map[chroma.Toke
return out
}
// Clear the background colour.
func clearBackground(style *chroma.Style) *chroma.Style {
builder := style.Builder()
bg := builder.Get(chroma.Background)
bg.Background = 0
bg.NoInherit = true
builder.AddEntry(chroma.Background, bg)
style, _ = builder.Build()
return style
}
type indexedTTYFormatter struct {
table *ttyTable
}
func (c *indexedTTYFormatter) Format(w io.Writer, style *chroma.Style, it chroma.Iterator) (err error) {
defer func() {
if perr := recover(); perr != nil {
err = perr.(error)
}
}()
theme := styleToEscapeSequence(c.table, style)
for token := it(); token != chroma.EOF; token = it() {
// TODO: Cache token lookups?