check for xclip

[charsel.git] / charsel

diff --git a/charsel b/charsel
index 17b3266bc8d3961f810ec8d95490a881bde1e2f2..5ee8b80da8e0cf683a20cf04c60077c33068aa87 100755 (executable)
--- a/charsel
+++ b/charsel
@@ -1,56 +1,125 @@
 #!/usr/bin/env bash
 
+#######################################################################
+
+# (C) Copyright Armaan Bhojwani, 2020
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+########################################################################
+
 # Merge both global and local charfiles
-CHARDIR=~/.cache/charsel
+CHARDIR=$HOME/.cache/charsel
 
 if [[ ! -d $CHARDIR ]]
 then
   mkdir $CHARDIR/
-elif [[! "$(ls -A $CHARDIR)"]]
+elif [[ ! "$(ls -A $CHARDIR)" ]]
+then
+  cp -rf /usr/share/charsel/- $CHARDIR/
+  cp -rf $HOME/.local/share/charsel/- $CHARDIR/
+fi
+
+# Check for xclip
+if [[ ! -f "$(which xclip)" ]]
 then
-  cp -rf /usr/share/charsel/* $CHARDIR/
-  cp -rf ~/.local/share/charsel/* $CHARDIR/
+  echo "Please install xclip."
+  exit 1
 fi
 
 # Check for user inputs
-if [ $1 = "list" ]
+if [[ $1 == "list" \
+  || $1 == "-l" \
+  || $1 == "--list" ]]
 then
-  echo "The following charfiles are installed"
+  echo "The following charfiles are installed:"
   ls $CHARDIR/charfiles
-  exit
-elif [[ $1 = "help" || $1 = "-h" || $1 = "--help" || $# -ne 1 ]]
+  exit 0
+elif [[ $1 == "help" \
+  || $1 == "-h" \
+  || $1 == "--help" \
+  || $# -ne 1 ]]
 then
   cat /usr/share/doc/charsel/README.md
-  exit
-else
-
-# Clear screen
-clear
+  exit 0
+fi
 
 # Define charfile path
 CHARFILE=$CHARDIR/charfiles/$1
 
-# Define length of shortcut
-LENGTH=$(cat $CHARFILE | cut -f 1 -d ',' -s | wc -L | cut -b 1)
+# Check if given charfile exists
+if [[ ! -f $CHARFILE ]]
+then
+  echo "Please enter a valid charfile."
+  charsel list
+  exit 1
+fi
+
+# Define length of shortcode
+LENGTH=$(cat $CHARFILE \
+  | cut -f 1 -d ',' -s \
+  | wc -L \
+  | cut -b 1)
+
+clear
 
 # Main program
-while :
+while true
 do
-  # Put charfile into table, showing only the shortcuts below the divider in the charfile
-  cat $CHARFILE | grep -A 100 - | tail -n +2 | column -t  --output-separator ' | ' --separator ','
+  # Format output
+  echo "*---------*---------------*"
+  echo "| CHARSEL |" $1
+  echo "*---------*---------------*"
+  echo ""
+
+  cat $CHARFILE \
+    | sed -e '/^[ \t]*#/d' \
+    | grep -A 100 - \
+    | tail -n +2 \
+    | column -t -N input,output --output-separator ' | ' --separator ','
+
+  echo ""
+  echo "*-------------------------*"
+  echo "| previous shorcode:" $INPUT
+  echo "| previous output:  " $OUTPUT
+  echo "*-------------------------*"
+
+  # User input
+  read -p "| input shortcode:   " -N $LENGTH INPUT
 
-  # Automatically enter input
-  read -N $LENGTH INPUT
- 
   # This can definately be simplifed, but it works fine
-  LINENUMBER=$(cut -f 1 -d ',' -s $CHARFILE | grep -n $INPUT | cut -d : -f 1)
-  OUTPUT=$(cut -f 2 -d ',' -s $CHARFILE | head -$LINENUMBER | tail +$LINENUMBER)
+  # Finds line number of shortcode
+  LINENUMBER=$(cut -f 1 -d ',' -s $CHARFILE \
+    | grep -wn $INPUT \
+    | cut -d : -f 1)
 
-  # Clear screen
-  clear
+  # Outputs charachter 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" ]]
+  then
+    OUTPUT=""
+  fi
 
   # Copy output to clipboard
-  echo $OUTPUT | xclip -selection clipboard
-done
+  echo $OUTPUT \
+    | xclip -selection clipboard
 
-fi
+  clear
+
+done