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[charsel.git] / charsel

diff --git a/charsel b/charsel
index d2e7525e0c246a9b4a4a165d024e169ce22c9d74..56e1fdf244dfd622206370bb0b014baccb10fe8c 100755 (executable)
--- a/charsel
+++ b/charsel
@@ -19,53 +19,103 @@
 
 ########################################################################
 
-# Merge global and local charfiles
+# Define argument functions
+function usage() {
+  echo "Usage: /usr/bin/charsel [OPTION]... [CHARFILE]...
+A simple terminal character selector
+  -h              show this message
+  -l              show installed charfiles
+  -d              show readme
+      --all       include hidden shortcodes
+
+Exit status:
+  0    okay,
+  1    invalid charfile
+  2    usage error/invalid option"
+}
+
 CHARDIR=$HOME/.cache/charsel
+function list() {
+  echo "The following charfiles are installed:"
+  ls $CHARDIR/charfiles
+}
 
-if [[ ! -d $CHARDIR ]]
-then
-  mkdir $CHARDIR/
-elif [[ ! "$(ls -A $CHARDIR)" ]]
-then
-  cp -rf /usr/share/charsel/- $CHARDIR/
-  cp -rf $HOME/.local/share/charsel/- $CHARDIR/
-fi
+function readme() {
+  cat /usr/share/doc/charsel/README.md
+}
+
+function invalid_charfile() {
+  echo "The selected charfile is missing or invalid"
+  list
+  exit 1
+}
+
+# Look for arguments
+while getopts ":lhd" arg
+do
+  case ${arg} in
+    h)
+      usage
+      exit 0
+      ;;
+    l)
+      list
+      exit 0
+      ;;
+    d)
+      readme
+      exit 0
+      ;;
+    ?)
+      echo "Invalid option"
+      usage
+      exit 2
+      ;;
+    :)
+      break
+      ;;
+  esac
+done
+shift $((OPTIND-1))
 
-# Check for xclip
-if [[ ! -f "$(which xclip)" ]]
+# Check if Xclip is installed
+if [[ -x xclip ]]
 then
   echo "Please install xclip."
   exit 1
 fi
 
-# Check for user inputs
-if [[ $1 == "-l" \
-  || $1 == "--list" ]]
+# Merge global and local charfiles
+if [[ -d $CHARDIR ]]
 then
-  echo "The following charfiles are installed:"
-  ls $CHARDIR/charfiles
-  exit 0
-elif [[ $1 == "-h" \
-  || $1 == "--help" ]]
+  rm -rf $CHARDIR/*
+else
+  mkdir $CHARDIR
+fi
+
+LOCALCHARDIR=$HOME/.local/share/charsel/charfiles
+if [[ ! -d $LOCALCHARDIR ]]
 then
-  cat /usr/share/doc/charsel/usage
-  exit 0
-elif [[ $1 == "-d" \
-  || $1 == "--doc" ]]
+  mkdir -p $LOCALCHARDIR
+fi
+
+localdirfiles=($LOCALCHARDIR/*)
+if [[ ! -z "${#localdirfiles[*]}" ]]
 then
-  cat /usr/share/doc/charsel/README.md
-  exit 0
+  cp -rf $LOCALCHARDIR/../* $CHARDIR
 fi
 
-# Define charfile path
-CHARFILE=$CHARDIR/charfiles/$1
+globaldirfiles=($/usr/share/charfiles/)
+if [[ ! -z "${#globaldirfiles[*]}" ]]
+then
+  cp -rf /usr/share/charsel/* $CHARDIR
+fi
 
-# Check if given charfile exists
+# Check if charfile exists
+CHARFILE="$CHARDIR/charfiles/$1"
 if [[ ! -f $CHARFILE ]]
 then
-  echo "Please enter a valid charfile."
-  charsel -l
-  exit 1
+  invalid_charfile
 fi
 
 # Define length of shortcode
@@ -87,15 +137,10 @@ do
 
   if [[ $2 == "--all" ]]
   then
-    cat $CHARFILE \
-      | sed -e '/^[ \t]*#/d' \
-      | tail -n +2 \
+    cat $CHARFILE | sed -e '/^[ \t]*#/d' | tail -n +2 \
       | column -t -N input,output --output-separator ' | ' --separator ','
   else
-    cat $CHARFILE \
-      | sed -e '/^[ \t]*#/d' \
-      | grep -A 100 - \
-      | tail -n +2 \
+    cat $CHARFILE | sed -e '/^[ \t]*#/d' | grep -A 100 - | tail -n +2 \
       | column -t -N input,output --output-separator ' | ' --separator ','
   fi
 
@@ -110,26 +155,19 @@ do
 
   # This can definately be simplifed, but it works fine
   # Finds line number of shortcode
-  LINENUMBER=$(cut -f 1 -d ',' -s $CHARFILE \
-    | grep -wn $INPUT \
-    | cut -d : -f 1)
+  LINENUMBER=$(cut -f 1 -d ',' -s $CHARFILE | grep -wn $INPUT | cut -d : -f 1)
 
-  # Outputs charachter selected above
-  OUTPUT=$(cut -f 2 -d ',' -s $CHARFILE \
-    | head -$LINENUMBER \
-    | tail +$LINENUMBER)
+  # Outputs character selected above
+  OUTPUT=$(cut -f 2 -d ',' -s $CHARFILE | head -$LINENUMBER | tail +$LINENUMBER)
 
   # Check to see if the shortcode actually exists
-  if [[ $(cut -f 1 -d ',' -s $CHARFILE \
-    | grep -wnc $INPUT) == "0" ]]
+  if [[ $(cut -f 1 -d ',' -s $CHARFILE | grep -wnc $INPUT) == "0" ]]
   then
     OUTPUT=""
   fi
 
   # Copy output to clipboard
-  echo $OUTPUT \
-    | xclip -selection clipboard
+  echo $OUTPUT | xclip -selection clipboard
 
   clear
-
 done