Git: components 301-320

internal/git.go

@@ -0,0 +1,76 @@
+package internal
+
+import (
+	"strings"
+
+	"github.com/egoist/mygo/ui"
+
+	"mujicaui/theme"
+)
+
+// CodeSpans colors a code line; inBlock carries block comments.
+func CodeSpans(k theme.Tokens, language, line string, inBlock bool) ([]ui.Span, bool) {
+	toks, open := Highlight(language, line, inBlock)
+	spans := make([]ui.Span, 0, len(toks))
+	for _, t := range toks {
+		s := ui.Span{Text: t.Text, Color: k.Text}
+		switch t.Kind {
+		case TokKeyword:
+			s.Color, s.Weight = k.AccentText, 600
+		case TokString:
+			s.Color = k.Success
+		case TokNumber:
+			s.Color = k.Info
+		case TokComment:
+			s.Color, s.Italic = k.TextMuted, true
+		case TokType:
+			s.Color = k.Warning
+		case TokPunct:
+			s.Color = k.TextMuted
+		}
+		spans = append(spans, s)
+	}
+	return spans, open
+}
+
+// ansiLight and ansiDark are 16 colors readable on Surface.
+var (
+	ansiLight = [16]string{"#211C1D", "#A12635", "#326247", "#805714", "#355E80", "#7A3B78", "#2F6B6B", "#6A5B55",
+		"#6A5B55", "#B0303F", "#3B7352", "#8E6417", "#3F6E94", "#8A4787", "#367A7A", "#211C1D"}
+	ansiDark = [16]string{"#A89A95", "#F0A1AA", "#94C6A4", "#DFC080", "#9DBDDA", "#D9A6D6", "#8FCFCF", "#F2EBDD",
+		"#BCAEAA", "#F5B7BE", "#ADD6B9", "#E9CF99", "#B5CDE4", "#E4BDE2", "#A9DCDC", "#FFFFFF"}
+	ansiCube = [6]uint8{0, 95, 135, 175, 215, 255}
+)
+
+// AnsiResolve resolves a color; ok is false for default.
+func AnsiResolve(dark bool, col AnsiColor) (ui.Color, bool) {
+	switch col.Kind {
+	case AnsiRGB:
+		return ui.RGB(col.R, col.G, col.B), true
+	case AnsiIndexed:
+		i := col.Index
+		switch {
+		case i < 16 && dark:
+			return ui.Hex(ansiDark[i]), true
+		case i < 16:
+			return ui.Hex(ansiLight[i]), true
+		case i < 232:
+			i -= 16
+			return ui.RGB(ansiCube[i/36], ansiCube[i/6%6], ansiCube[i%6]), true
+		default:
+			g := 8 + 10*(i-232)
+			return ui.RGB(g, g, g), true
+		}
+	}
+	return ui.Color{}, false
+}
+
+// StripAnsi drops SGR escapes from s, keeping its text.
+func StripAnsi(s string) string {
+	spans, _ := ParseAnsi(s, AnsiStyle{})
+	var b strings.Builder
+	for _, sp := range spans {
+		b.WriteString(sp.Text)
+	}
+	return b.String()
+}