Micro-optimisation

kitty/rgb.py

@@ -455,30 +455,28 @@ def to_color(raw: str, validate: bool = False) -> Color | None:
     if raw.startswith('#'):
         # For hex colors, only strip comments after whitespace
         # e.g., "#ff0000 # comment" -> "#ff0000"
-        parts = raw.split()
-        if len(parts) > 1:
-            raw = parts[0]  # Keep only the hex color part
+        raw = raw.partition(' ')[0]
     else:
         # For non-hex colors, strip everything after #
-        raw = raw.split('#')[0].strip()
+        raw = raw.partition('#')[0]
     x = raw.strip().lower()
-    ans = color_names.get(x)
-    if ans is not None:
+    if ans := color_names.get(x):
         return ans
     val: Color | None = None
     with suppress(Exception):
-        if raw.startswith('#'):
-            val = parse_sharp(raw[1:])
-        elif x.startswith('oklch('):
-            val = parse_oklch(x[6:])
-        elif x.startswith('lab('):
-            val = parse_lab(x[4:])
-        else:
-            k, sep, v = raw.partition(':')
-            if k == 'rgb':
-                val = parse_rgb(v)
-            elif k == 'rgbi':
-                val = parse_rgbi(v)
+        match raw[0]:
+            case '#':
+                val = parse_sharp(raw[1:])
+            case 'o':
+                val = parse_oklch(x[6:])
+            case 'l':
+                val = parse_lab(x[4:])
+            case 'r':
+                k, _, v = raw.partition(':')
+                if k == 'rgb':
+                    val = parse_rgb(v)
+                elif k == 'rgbi':
+                    val = parse_rgbi(v)
     if val is None and validate:
         raise ValueError(f'Invalid color name: {raw!r}')
     return val

tools/utils/style/colorspaces.go

@@ -105,9 +105,9 @@ func oklchToSrgbGamutMap(l, c, h float64) (float64, float64, float64) {
 	}
 
 	// Constants from CSS Color Module Level 4
-	const jnd = 0.02          // Just Noticeable Difference threshold
+	const jnd = 0.02              // Just Noticeable Difference threshold
 	const minConvergence = 0.0001 // Binary search precision
-	const epsilon = 0.00001   // Small value for floating point comparisons
+	const epsilon = 0.00001       // Small value for floating point comparisons
 
 	// Edge cases: pure black or white
 	if l <= 0.0 {
@@ -271,7 +271,7 @@ func parseOklch(spec string) (RGBA, error) {
 	// Clamp to reasonable ranges
 	l = math.Max(0.0, math.Min(1.0, l))
 	c = math.Max(0.0, c) // Chroma is unbounded
-	h = math.Mod(h, 360)  // Wrap hue to 0-360
+	h = math.Mod(h, 360) // Wrap hue to 0-360
 	if h < 0 {
 		h += 360
 	}