diff --git a/src/color.cc b/src/color.cc
new file mode 100644
index 0000000..7865c6c
--- /dev/null
+++ b/src/color.cc
@@ -0,0 +1,401 @@
+
+//
+// color.cc
+//
+// Copyright (c) 2010 LearnBoost <tj@learnboost.com>
+//
+
+#include "color.h"
+
+/*
+ * Consume whitespace.
+ */
+
+#define WHITESPACE \
+  while (' ' == *str) ++str;
+
+/*
+ * Parse color channel value
+ */
+
+#define CHANNEL(NAME) \
+   if (*str >= '0' && *str <= '9') { \
+     do { \
+       NAME *= 10; \
+       NAME += *str++ - '0'; \
+     } while (*str >= '0' && *str <= '9'); \
+   } else { \
+     return -1; \
+   } \
+   while (' ' == *str || ',' == *str) str++;
+
+/*
+ * Named colors.
+ */
+
+static struct named_color {
+  const char *name;
+  uint32_t val;
+} named_colors[] = {
+    {"transparent", 0xffffff00}
+  , {"aliceblue", 0xf0f8ffff}
+  , {"antiquewhite", 0xfaebd7ff}
+  , {"aqua", 0x00ffffff}
+  , {"aquamarine", 0x7fffd4ff}
+  , {"azure", 0xf0ffffff}
+  , {"beige", 0xf5f5dcff}
+  , {"bisque", 0xffe4c4ff}
+  , {"black", 0x000000ff}
+  , {"blanchedalmond", 0xffebcdff}
+  , {"blue", 0x0000ffff}
+  , {"blueviolet", 0x8a2be2ff}
+  , {"brown", 0xa52a2aff}
+  , {"burlywood", 0xdeb887ff}
+  , {"cadetblue", 0x5f9ea0ff}
+  , {"chartreuse", 0x7fff00ff}
+  , {"chocolate", 0xd2691eff}
+  , {"coral", 0xff7f50ff}
+  , {"cornflowerblue", 0x6495edff}
+  , {"cornsilk", 0xfff8dcff}
+  , {"crimson", 0xdc143cff}
+  , {"cyan", 0x00ffffff}
+  , {"darkblue", 0x00008bff}
+  , {"darkcyan", 0x008b8bff}
+  , {"darkgoldenrod", 0xb8860bff}
+  , {"darkgray", 0xa9a9a9ff}
+  , {"darkgreen", 0x006400ff}
+  , {"darkkhaki", 0xbdb76bff}
+  , {"darkmagenta", 0x8b008bff}
+  , {"darkolivegreen", 0x556b2fff}
+  , {"darkorange", 0xff8c00ff}
+  , {"darkorchid", 0x9932ccff}
+  , {"darkred", 0x8b0000ff}
+  , {"darksalmon", 0xe9967aff}
+  , {"darkseagreen", 0x8fbc8fff}
+  , {"darkslateblue", 0x483d8bff}
+  , {"darkslategray", 0x2f4f4fff}
+  , {"darkturquoise", 0x00ced1ff}
+  , {"darkviolet", 0x9400d3ff}
+  , {"deeppink", 0xff1493ff}
+  , {"deepskyblue", 0x00bfffff}
+  , {"dimgray", 0x696969ff}
+  , {"dodgerblue", 0x1e90ffff}
+  , {"feldspar", 0xd19275ff}
+  , {"firebrick", 0xb22222ff}
+  , {"floralwhite", 0xfffaf0ff}
+  , {"forestgreen", 0x228b22ff}
+  , {"fuchsia", 0xff00ffff}
+  , {"gainsboro", 0xdcdcdcff}
+  , {"ghostwhite", 0xf8f8ffff}
+  , {"gold", 0xffd700ff}
+  , {"goldenrod", 0xdaa520ff}
+  , {"gray", 0x808080ff}
+  , {"green", 0x008000ff}
+  , {"greenyellow", 0xadff2fff}
+  , {"honeydew", 0xf0fff0ff}
+  , {"hotpink", 0xff69b4ff}
+  , {"indianred ", 0xcd5c5cff}
+  , {"indigo ", 0x4b0082ff}
+  , {"ivory", 0xfffff0ff}
+  , {"khaki", 0xf0e68cff}
+  , {"lavender", 0xe6e6faff}
+  , {"lavenderblush", 0xfff0f5ff}
+  , {"lawngreen", 0x7cfc00ff}
+  , {"lemonchiffon", 0xfffacdff}
+  , {"lightblue", 0xadd8e6ff}
+  , {"lightcoral", 0xf08080ff}
+  , {"lightcyan", 0xe0ffffff}
+  , {"lightgoldenrodyellow", 0xfafa}
+  , {"lightgrey", 0xd3d3d3ff}
+  , {"lightgreen", 0x90ee90ff}
+  , {"lightpink", 0xffb6c1ff}
+  , {"lightsalmon", 0xffa07aff}
+  , {"lightseagreen", 0x20b2aaff}
+  , {"lightskyblue", 0x87cefaff}
+  , {"lightslateblue", 0x8470ffff}
+  , {"lightslategray", 0x778899ff}
+  , {"lightsteelblue", 0xb0c4deff}
+  , {"lightyellow", 0xffffe0ff}
+  , {"lime", 0x00ff00ff}
+  , {"limegreen", 0x32cd32ff}
+  , {"linen", 0xfaf0e6ff}
+  , {"magenta", 0xff00ffff}
+  , {"maroon", 0x800000ff}
+  , {"mediumaquamarine", 0x66cdaaff}
+  , {"mediumblue", 0x0000cdff}
+  , {"mediumorchid", 0xba55d3ff}
+  , {"mediumpurple", 0x9370d8ff}
+  , {"mediumseagreen", 0x3cb371ff}
+  , {"mediumslateblue", 0x7b68eeff}
+  , {"mediumspringgreen", 0x00fa9af}
+  , {"mediumturquoise", 0x48d1ccff}
+  , {"mediumvioletred", 0xc71585ff}
+  , {"midnightblue", 0x191970ff}
+  , {"mintcream", 0xf5fffaff}
+  , {"mistyrose", 0xffe4e1ff}
+  , {"moccasin", 0xffe4b5ff}
+  , {"navajowhite", 0xffdeadff}
+  , {"navy", 0x000080ff}
+  , {"oldlace", 0xfdf5e6ff}
+  , {"olive", 0x808000ff}
+  , {"olivedrab", 0x6b8e23ff}
+  , {"orange", 0xffa500ff}
+  , {"orangered", 0xff4500ff}
+  , {"orchid", 0xda70d6ff}
+  , {"palegoldenrod", 0xeee8aaff}
+  , {"palegreen", 0x98fb98ff}
+  , {"paleturquoise", 0xafeeeeff}
+  , {"palevioletred", 0xd87093ff}
+  , {"papayawhip", 0xffefd5ff}
+  , {"peachpuff", 0xffdab9ff}
+  , {"peru", 0xcd853fff}
+  , {"pink", 0xffc0cbff}
+  , {"plum", 0xdda0ddff}
+  , {"powderblue", 0xb0e0e6ff}
+  , {"purple", 0x800080ff}
+  , {"red", 0xff0000ff}
+  , {"rosybrown", 0xbc8f8fff}
+  , {"royalblue", 0x4169e1ff}
+  , {"saddlebrown", 0x8b4513ff}
+  , {"salmon", 0xfa8072ff}
+  , {"sandybrown", 0xf4a460ff}
+  , {"seagreen", 0x2e8b57ff}
+  , {"seashell", 0xfff5eeff}
+  , {"sienna", 0xa0522dff}
+  , {"silver", 0xc0c0c0ff}
+  , {"skyblue", 0x87ceebff}
+  , {"slateblue", 0x6a5acdff}
+  , {"slategray", 0x708090ff}
+  , {"snow", 0xfffafaff}
+  , {"springgreen", 0x00ff7fff}
+  , {"steelblue", 0x4682b4ff}
+  , {"tan", 0xd2b48cff}
+  , {"teal", 0x008080ff}
+  , {"thistle", 0xd8bfd8ff}
+  , {"tomato", 0xff6347ff}
+  , {"turquoise", 0x40e0d0ff}
+  , {"violet", 0xee82eeff}
+  , {"violetred", 0xd02090ff}
+  , {"wheat", 0xf5deb3ff}
+  , {"white", 0xffffffff}
+  , {"whitesmoke", 0xf5f5f5ff}
+  , {"yellow", 0xffff00ff}
+  , {"yellowgreen", 0x9acd32ff}
+  , {NULL, NULL}
+};
+
+/*
+ * Hex digit int val.
+ */
+
+static int
+h(char c) {
+  switch (c) {
+    case '0':
+    case '1':
+    case '2':
+    case '3':
+    case '4':
+    case '5':
+    case '6':
+    case '7':
+    case '8':
+    case '9':
+      return c - '0';
+    case 'a':
+    case 'b':
+    case 'c':
+    case 'd':
+    case 'e':
+    case 'f':
+      return (c - 'a') + 10;
+    case 'A':
+    case 'B':
+    case 'C':
+    case 'D':
+    case 'E':
+    case 'F':
+      return (c - 'A') + 10;
+  }
+  return 0;
+}
+
+/*
+ * Return rgba_t from rgba.
+ */
+
+rgba_t
+rgba_create(uint32_t rgba) {
+  rgba_t color;
+  color.r = rgba >> 24;
+  color.g = rgba >> 16;
+  color.b = rgba >> 8;
+  color.a = rgba;
+  return color;
+}
+
+/*
+ * Return rgba from (r,g,b,a).
+ */
+
+inline int32_t
+rgba_from_rgba(uint8_t r, uint8_t g, uint8_t b, uint8_t a) {
+  return
+      r << 24
+    | g << 16
+    | b << 8
+    | a;
+}
+
+/*
+ * Return rgba from (r,g,b).
+ */
+
+int32_t
+rgba_from_rgb(uint8_t r, uint8_t g, uint8_t b) {
+  return rgba_from_rgba(r, g, b, 0);
+}
+
+/*
+ * Return rgb from "#RRGGBB".
+ */
+
+int32_t
+rgba_from_hex6_string(const char *str) {
+  return rgba_from_rgb(
+      (h(str[0]) << 4) + h(str[1])
+    , (h(str[2]) << 4) + h(str[3])
+    , (h(str[4]) << 4) + h(str[5])
+    );
+}
+
+/*
+ * Return rgb from "#RGB"
+ */
+
+int32_t
+rgba_from_hex3_string(const char *str) {
+  return rgba_from_rgb(
+      (h(str[0]) << 4) + h(str[0])
+    , (h(str[1]) << 4) + h(str[1])
+    , (h(str[2]) << 4) + h(str[2])
+    );
+}
+
+/*
+ * Return rgb from "rgb()"
+ */
+
+int32_t
+rgba_from_rgb_string(const char *str) {
+  if (str == strnstr(str, "rgb(", 4)) {
+    str += 4;
+    WHITESPACE;
+    uint8_t r = 0, g = 0, b = 0;
+    CHANNEL(r);
+    CHANNEL(g);
+    CHANNEL(b);
+    return rgba_from_rgb(r, g, b);
+  }
+  return -1;
+}
+
+/*
+ * Return rgb from "rgba()"
+ */
+
+int32_t
+rgba_from_rgba_string(const char *str) {
+  if (str == strnstr(str, "rgba(", 5)) {
+    str += 5;
+    WHITESPACE;
+    uint8_t r = 0, g = 0, b = 0;
+    float a = 0;
+    CHANNEL(r);
+    CHANNEL(g);
+    CHANNEL(b);
+    // TODO: less strict
+    if ('1' == *str) {
+      a = 1;
+    } else {
+      if ('0' == *str) a = 0, ++str;
+      if ('.' == *str) {
+        ++str;
+        float n = .1;
+        while (*str >= '0' && *str <= '9') {
+          a += (*str++ - '0') * n;
+          n *= .1;
+        }
+      }
+    }
+    return rgba_from_rgba(r, g, b, a * 255);
+  }
+  return -1;
+}
+
+/*
+ * Return rgb from:
+ *  
+ *  - "#RGB"
+ *  - "#RRGGBB"
+ *
+ */
+
+int32_t
+rgba_from_hex_string(const char *str) {
+  size_t len = strlen(str);
+  if (6 == len) return rgba_from_hex6_string(str);
+  if (3 == len) return rgba_from_hex3_string(str);
+  return -1;
+}
+
+/*
+ * Return named color value.
+ */
+
+int32_t
+rgba_from_name_string(const char *str) {
+  int i = 0;
+  struct named_color color;
+  while ((color = named_colors[i++]).name) {
+    if (*str == *color.name && 0 == strcmp(str, color.name))
+      return color.val;
+  }
+  return -1;
+}
+
+/*
+ * Return rgb from:
+ *  
+ *  - #RGB
+ *  - #RRGGBB
+ *  - rgb(r,g,b)
+ *  - rgba(r,g,b,a)
+ *  - name
+ *
+ */
+
+int32_t
+rgba_from_string(const char *str) {
+  if ('#' == str[0]) 
+    return rgba_from_hex_string(++str);
+  if (str == strnstr(str, "rgba", 4))
+    return rgba_from_rgba_string(str);
+  if (str == strnstr(str, "rgb", 3))
+    return rgba_from_rgb_string(str);
+  return rgba_from_name_string(str);
+}
+
+/*
+ * Inspect the given rgba color.
+ */
+
+void
+rgba_inspect(int32_t rgba) {
+  printf("rgba(%d,%d,%d,%d)\n"
+    , rgba >> 24 & 0xFF
+    , rgba >> 16 & 0xFF
+    , rgba >> 8 & 0xFF
+    , rgba & 0xFF
+    );
+}
diff --git a/src/color.h b/src/color.h
index 03dbe7c..60eaf54 100644
--- a/src/color.h
+++ b/src/color.h
@@ -8,6 +8,7 @@
 #ifndef __COLOR_PARSER_H__
 #define __COLOR_PARSER_H__
 
+#include <stdio.h>
 #include <stdint.h>
 #include <string.h>
 
@@ -20,396 +21,40 @@ typedef struct {
 } rgba_t;
 
 /*
- * Consume whitespace.
- */
-
-#define WHITESPACE \
-  while (' ' == *str) ++str;
-
-/*
- * Parse color channel value
- */
-
-#define CHANNEL(NAME) \
-   if (*str >= '0' && *str <= '9') { \
-     do { \
-       NAME *= 10; \
-       NAME += *str++ - '0'; \
-     } while (*str >= '0' && *str <= '9'); \
-   } else { \
-     return -1; \
-   } \
-   while (' ' == *str || ',' == *str) str++;
-
-/*
- * Named colors.
- */
-
-static struct named_color {
-  const char *name;
-  uint32_t val;
-} named_colors[] = {
-    {"transparent", 0xffffff00}
-  , {"aliceblue", 0xf0f8ffff}
-  , {"antiquewhite", 0xfaebd7ff}
-  , {"aqua", 0x00ffffff}
-  , {"aquamarine", 0x7fffd4ff}
-  , {"azure", 0xf0ffffff}
-  , {"beige", 0xf5f5dcff}
-  , {"bisque", 0xffe4c4ff}
-  , {"black", 0x000000ff}
-  , {"blanchedalmond", 0xffebcdff}
-  , {"blue", 0x0000ffff}
-  , {"blueviolet", 0x8a2be2ff}
-  , {"brown", 0xa52a2aff}
-  , {"burlywood", 0xdeb887ff}
-  , {"cadetblue", 0x5f9ea0ff}
-  , {"chartreuse", 0x7fff00ff}
-  , {"chocolate", 0xd2691eff}
-  , {"coral", 0xff7f50ff}
-  , {"cornflowerblue", 0x6495edff}
-  , {"cornsilk", 0xfff8dcff}
-  , {"crimson", 0xdc143cff}
-  , {"cyan", 0x00ffffff}
-  , {"darkblue", 0x00008bff}
-  , {"darkcyan", 0x008b8bff}
-  , {"darkgoldenrod", 0xb8860bff}
-  , {"darkgray", 0xa9a9a9ff}
-  , {"darkgreen", 0x006400ff}
-  , {"darkkhaki", 0xbdb76bff}
-  , {"darkmagenta", 0x8b008bff}
-  , {"darkolivegreen", 0x556b2fff}
-  , {"darkorange", 0xff8c00ff}
-  , {"darkorchid", 0x9932ccff}
-  , {"darkred", 0x8b0000ff}
-  , {"darksalmon", 0xe9967aff}
-  , {"darkseagreen", 0x8fbc8fff}
-  , {"darkslateblue", 0x483d8bff}
-  , {"darkslategray", 0x2f4f4fff}
-  , {"darkturquoise", 0x00ced1ff}
-  , {"darkviolet", 0x9400d3ff}
-  , {"deeppink", 0xff1493ff}
-  , {"deepskyblue", 0x00bfffff}
-  , {"dimgray", 0x696969ff}
-  , {"dodgerblue", 0x1e90ffff}
-  , {"feldspar", 0xd19275ff}
-  , {"firebrick", 0xb22222ff}
-  , {"floralwhite", 0xfffaf0ff}
-  , {"forestgreen", 0x228b22ff}
-  , {"fuchsia", 0xff00ffff}
-  , {"gainsboro", 0xdcdcdcff}
-  , {"ghostwhite", 0xf8f8ffff}
-  , {"gold", 0xffd700ff}
-  , {"goldenrod", 0xdaa520ff}
-  , {"gray", 0x808080ff}
-  , {"green", 0x008000ff}
-  , {"greenyellow", 0xadff2fff}
-  , {"honeydew", 0xf0fff0ff}
-  , {"hotpink", 0xff69b4ff}
-  , {"indianred ", 0xcd5c5cff}
-  , {"indigo ", 0x4b0082ff}
-  , {"ivory", 0xfffff0ff}
-  , {"khaki", 0xf0e68cff}
-  , {"lavender", 0xe6e6faff}
-  , {"lavenderblush", 0xfff0f5ff}
-  , {"lawngreen", 0x7cfc00ff}
-  , {"lemonchiffon", 0xfffacdff}
-  , {"lightblue", 0xadd8e6ff}
-  , {"lightcoral", 0xf08080ff}
-  , {"lightcyan", 0xe0ffffff}
-  , {"lightgoldenrodyellow", 0xfafa}
-  , {"lightgrey", 0xd3d3d3ff}
-  , {"lightgreen", 0x90ee90ff}
-  , {"lightpink", 0xffb6c1ff}
-  , {"lightsalmon", 0xffa07aff}
-  , {"lightseagreen", 0x20b2aaff}
-  , {"lightskyblue", 0x87cefaff}
-  , {"lightslateblue", 0x8470ffff}
-  , {"lightslategray", 0x778899ff}
-  , {"lightsteelblue", 0xb0c4deff}
-  , {"lightyellow", 0xffffe0ff}
-  , {"lime", 0x00ff00ff}
-  , {"limegreen", 0x32cd32ff}
-  , {"linen", 0xfaf0e6ff}
-  , {"magenta", 0xff00ffff}
-  , {"maroon", 0x800000ff}
-  , {"mediumaquamarine", 0x66cdaaff}
-  , {"mediumblue", 0x0000cdff}
-  , {"mediumorchid", 0xba55d3ff}
-  , {"mediumpurple", 0x9370d8ff}
-  , {"mediumseagreen", 0x3cb371ff}
-  , {"mediumslateblue", 0x7b68eeff}
-  , {"mediumspringgreen", 0x00fa9af}
-  , {"mediumturquoise", 0x48d1ccff}
-  , {"mediumvioletred", 0xc71585ff}
-  , {"midnightblue", 0x191970ff}
-  , {"mintcream", 0xf5fffaff}
-  , {"mistyrose", 0xffe4e1ff}
-  , {"moccasin", 0xffe4b5ff}
-  , {"navajowhite", 0xffdeadff}
-  , {"navy", 0x000080ff}
-  , {"oldlace", 0xfdf5e6ff}
-  , {"olive", 0x808000ff}
-  , {"olivedrab", 0x6b8e23ff}
-  , {"orange", 0xffa500ff}
-  , {"orangered", 0xff4500ff}
-  , {"orchid", 0xda70d6ff}
-  , {"palegoldenrod", 0xeee8aaff}
-  , {"palegreen", 0x98fb98ff}
-  , {"paleturquoise", 0xafeeeeff}
-  , {"palevioletred", 0xd87093ff}
-  , {"papayawhip", 0xffefd5ff}
-  , {"peachpuff", 0xffdab9ff}
-  , {"peru", 0xcd853fff}
-  , {"pink", 0xffc0cbff}
-  , {"plum", 0xdda0ddff}
-  , {"powderblue", 0xb0e0e6ff}
-  , {"purple", 0x800080ff}
-  , {"red", 0xff0000ff}
-  , {"rosybrown", 0xbc8f8fff}
-  , {"royalblue", 0x4169e1ff}
-  , {"saddlebrown", 0x8b4513ff}
-  , {"salmon", 0xfa8072ff}
-  , {"sandybrown", 0xf4a460ff}
-  , {"seagreen", 0x2e8b57ff}
-  , {"seashell", 0xfff5eeff}
-  , {"sienna", 0xa0522dff}
-  , {"silver", 0xc0c0c0ff}
-  , {"skyblue", 0x87ceebff}
-  , {"slateblue", 0x6a5acdff}
-  , {"slategray", 0x708090ff}
-  , {"snow", 0xfffafaff}
-  , {"springgreen", 0x00ff7fff}
-  , {"steelblue", 0x4682b4ff}
-  , {"tan", 0xd2b48cff}
-  , {"teal", 0x008080ff}
-  , {"thistle", 0xd8bfd8ff}
-  , {"tomato", 0xff6347ff}
-  , {"turquoise", 0x40e0d0ff}
-  , {"violet", 0xee82eeff}
-  , {"violetred", 0xd02090ff}
-  , {"wheat", 0xf5deb3ff}
-  , {"white", 0xffffffff}
-  , {"whitesmoke", 0xf5f5f5ff}
-  , {"yellow", 0xffff00ff}
-  , {"yellowgreen", 0x9acd32ff}
-  , {NULL, NULL}
-};
-
-/*
- * Hex digit int val.
- */
-
-static int
-h(char c) {
-  switch (c) {
-    case '0':
-    case '1':
-    case '2':
-    case '3':
-    case '4':
-    case '5':
-    case '6':
-    case '7':
-    case '8':
-    case '9':
-      return c - '0';
-    case 'a':
-    case 'b':
-    case 'c':
-    case 'd':
-    case 'e':
-    case 'f':
-      return (c - 'a') + 10;
-    case 'A':
-    case 'B':
-    case 'C':
-    case 'D':
-    case 'E':
-    case 'F':
-      return (c - 'A') + 10;
-  }
-  return 0;
-}
-
-/*
- * Return rgba_t from rgba.
+ * Prototypes.
  */
 
 rgba_t
-rgba_create(uint32_t rgba) {
-  rgba_t color;
-  color.r = rgba >> 24;
-  color.g = rgba >> 16;
-  color.b = rgba >> 8;
-  color.a = rgba;
-  return color;
-}
-
-/*
- * Return rgba from (r,g,b,a).
- */
+rgba_create(uint32_t rgba);
 
 inline int32_t
-rgba_from_rgba(uint8_t r, uint8_t g, uint8_t b, uint8_t a) {
-  return
-      r << 24
-    | g << 16
-    | b << 8
-    | a;
-}
-
-/*
- * Return rgba from (r,g,b).
- */
+rgba_from_rgba(uint8_t r, uint8_t g, uint8_t b, uint8_t a);
 
 int32_t
-rgba_from_rgb(uint8_t r, uint8_t g, uint8_t b) {
-  return rgba_from_rgba(r, g, b, 0);
-}
-
-/*
- * Return rgb from "#RRGGBB".
- */
+rgba_from_rgb(uint8_t r, uint8_t g, uint8_t b);
 
 int32_t
-rgba_from_hex6_string(const char *str) {
-  return rgba_from_rgb(
-      (h(str[0]) << 4) + h(str[1])
-    , (h(str[2]) << 4) + h(str[3])
-    , (h(str[4]) << 4) + h(str[5])
-    );
-}
-
-/*
- * Return rgb from "#RGB"
- */
+rgba_from_hex6_string(const char *str);
 
 int32_t
-rgba_from_hex3_string(const char *str) {
-  return rgba_from_rgb(
-      (h(str[0]) << 4) + h(str[0])
-    , (h(str[1]) << 4) + h(str[1])
-    , (h(str[2]) << 4) + h(str[2])
-    );
-}
-
-/*
- * Return rgb from "rgb()"
- */
+rgba_from_hex3_string(const char *str);
 
 int32_t
-rgba_from_rgb_string(const char *str) {
-  if (str == strnstr(str, "rgb(", 4)) {
-    str += 4;
-    WHITESPACE;
-    uint8_t r = 0, g = 0, b = 0;
-    CHANNEL(r);
-    CHANNEL(g);
-    CHANNEL(b);
-    return rgba_from_rgb(r, g, b);
-  }
-  return -1;
-}
-
-/*
- * Return rgb from "rgba()"
- */
+rgba_from_rgb_string(const char *str);
 
 int32_t
-rgba_from_rgba_string(const char *str) {
-  if (str == strnstr(str, "rgba(", 5)) {
-    str += 5;
-    WHITESPACE;
-    uint8_t r = 0, g = 0, b = 0;
-    float a = 0;
-    CHANNEL(r);
-    CHANNEL(g);
-    CHANNEL(b);
-    // TODO: less strict
-    if ('1' == *str) {
-      a = 1;
-    } else {
-      if ('0' == *str) a = 0, ++str;
-      if ('.' == *str) {
-        ++str;
-        float n = .1;
-        while (*str >= '0' && *str <= '9') {
-          a += (*str++ - '0') * n;
-          n *= .1;
-        }
-      }
-    }
-    return rgba_from_rgba(r, g, b, a * 255);
-  }
-  return -1;
-}
-
-/*
- * Return rgb from:
- *  
- *  - "#RGB"
- *  - "#RRGGBB"
- *
- */
+rgba_from_rgba_string(const char *str);
 
 int32_t
-rgba_from_hex_string(const char *str) {
-  size_t len = strlen(str);
-  if (6 == len) return rgba_from_hex6_string(str);
-  if (3 == len) return rgba_from_hex3_string(str);
-  return -1;
-}
-
-/*
- * Return named color value.
- */
+rgba_from_hex_string(const char *str);
 
 int32_t
-rgba_from_name_string(const char *str) {
-  int i = 0;
-  struct named_color color;
-  while ((color = named_colors[i++]).name) {
-    if (*str == *color.name && 0 == strcmp(str, color.name))
-      return color.val;
-  }
-  return -1;
-}
-
-/*
- * Return rgb from:
- *  
- *  - #RGB
- *  - #RRGGBB
- *  - rgb(r,g,b)
- *  - rgba(r,g,b,a)
- *  - name
- *
- */
+rgba_from_name_string(const char *str);
 
 int32_t
-rgba_from_string(const char *str) {
-  if ('#' == str[0]) 
-    return rgba_from_hex_string(++str);
-  if (str == strnstr(str, "rgba", 4))
-    return rgba_from_rgba_string(str);
-  if (str == strnstr(str, "rgb", 3))
-    return rgba_from_rgb_string(str);
-  return rgba_from_name_string(str);
-}
-
-/*
- * Inspect the given rgba color.
- */
+rgba_from_string(const char *str);
 
 void
-rgba_inspect(int32_t rgba) {
-  printf("rgba(%d,%d,%d,%d)\n"
-    , rgba >> 24 & 0xFF
-    , rgba >> 16 & 0xFF
-    , rgba >> 8 & 0xFF
-    , rgba & 0xFF
-    );
-}
+rgba_inspect(int32_t rgba);
 
 #endif /* __COLOR_PARSER_H__ */