Extracted color functions to a separate file.

1 files changed, 56 insertions, 0 deletions

diff --git a/functions/colors.zsh b/functions/colors.zsh
new file mode 100644
index 00000000..c82af9ea
--- /dev/null
+++ b/functions/colors.zsh
@@ -0,0 +1,56 @@
+# vim:ft=zsh ts=2 sw=2 sts=2 et fenc=utf-8
+################################################################
+# Color functions
+# This file holds some color-functions for
+# the powerlevel9k-ZSH-theme
+# https://github.com/bhilburn/powerlevel9k
+################################################################
+
+# Get numerical color codes. That way we translate ANSI codes
+# into ZSH-Style color codes.
+function getColorCode() {
+  # Check if given value is already numerical
+  if [[ "$1" = <-> ]]; then
+    # ANSI color codes distinguish between "foreground"
+    # and "background" colors. We don't need to do that,
+    # as ZSH uses a 256 color space anyway.
+    if [[ "$1" = <8-15> ]]; then
+      echo $(($1 - 8))
+    else
+      echo "$1"
+    fi
+  else
+    typeset -A codes
+    codes=(
+      'black'   '000'
+      'red'     '001'
+      'green'   '002'
+      'yellow'  '003'
+      'blue'    '004'
+      'magenta' '005'
+      'cyan'    '006'
+      'white'   '007'
+    )
+
+    # Strip eventual "bg-" prefixes
+    1=${1#bg-}
+    # Strip eventual "fg-" prefixes
+    1=${1#fg-}
+    # Strip eventual "br" prefixes ("bright" colors)
+    1=${1#br}
+    echo $codes[$1]
+  fi
+}
+
+# Check if two colors are equal, even if one is specified as ANSI code.
+function isSameColor() {
+  if [[ "$1" == "NONE" || "$2" == "NONE" ]]; then
+    return 1
+  fi
+
+  local color1=$(getColorCode "$1")
+  local color2=$(getColorCode "$2")
+
+  return $(( color1 != color2 ))
+}
+