bash: factor out colorized man into colorman script

roles/dotfiles/files/bashrc

@@ -187,6 +187,9 @@ else
     alias lsc="/usr/bin/env CLICOLOR_FORCE=1 ls"
 fi
 
+# Use my colorman wrapper if available.
+command -v colorman >/dev/null && alias man=colorman
+
 alias ll="ls -l"
 alias lla="la -l"
 
@@ -377,30 +380,6 @@ ltree() { tree -C "$@" | less -R; }
 # Combined mkdir and cd
 mkcd() { mkdir -p -- "$1" && cd -P -- "$1" || return; }
 
-# Colorized `man`
-man() {
-    local standout bold underline
-
-    if [ "$BACKGROUND" = "light" ]; then
-        standout="$Base3$Cyan_BG"
-        bold="$Blue"
-        underline="$Base02$(tput smul)"
-    else
-        standout="$Base03$Cyan_BG"
-        bold="$Yellow"
-        underline="$Base3$(tput smul)"
-    fi
-
-    LESS_TERMCAP_so="$standout"     \
-    LESS_TERMCAP_md="$bold"         \
-    LESS_TERMCAP_us="$underline"    \
-    LESS_TERMCAP_se="$Reset"        \
-    LESS_TERMCAP_me="$Reset"        \
-    LESS_TERMCAP_ue="$Reset"        \
-    GROFF_NO_SGR=1                  \
-    command man "$@"
-}
-
 solarized() {
     local name rgb _bg n
 

roles/dotfiles/files/bin/colorman

@@ -0,0 +1,40 @@
+#!/bin/sh
+# Colorized man pages
+
+Reset=$(tput sgr0)
+Base03=8
+Base02=0
+#Base01=10
+#Base00=11
+#Base0=12
+#Base1=14
+#Base2=7
+Base3=15
+#Red=1
+#Orange=9
+Yellow=3
+#Green=2
+Cyan=6
+Blue=4
+#Violet=13
+#Magenta=5
+
+if [ "$BACKGROUND" = "light" ]; then
+    standout=$( printf '%s\n' "setaf $Base3" "setab $Cyan"  | tput -S)
+    bold=$(     printf '%s\n' "setaf $Blue"                 | tput -S)
+    underline=$(printf '%s\n' "setaf $Base02" "smul"        | tput -S)
+else
+    standout=$( printf '%s\n' "setaf $Base03" "setab $Cyan" | tput -S)
+    bold=$(     printf '%s\n' "setaf $Yellow"               | tput -S)
+    underline=$(printf '%s\n' "setaf $Base3" "smul"         | tput -S)
+fi
+
+LESS_TERMCAP_so="$standout"     \
+LESS_TERMCAP_md="$bold"         \
+LESS_TERMCAP_us="$underline"    \
+LESS_TERMCAP_se="$Reset"        \
+LESS_TERMCAP_me="$Reset"        \
+LESS_TERMCAP_ue="$Reset"        \
+GROFF_NO_SGR=1                  \
+man "$@"
+