-#!/usr/bin/env sh
+#!/usr/bin/env bash
+# Charsel - terminal character selector
+# Copyright Armaan Bhojwani 2020, MIT License
-# Merge both global and local charfiles
-CHARDIR=/tmp/charsel
-cp /usr/share/charsel/* $CHARDIR
-cp ~/.local/share/charsel/* $CHARDIR
+# Define argument functions
+function usage() {
+ echo "Usage: /usr/bin/charsel [OPTION]... [CHARFILE]...
-# Check if user provided a charfile
-[ -z "$1" ] && echo "No argument supplied" && exit 1
+A simple terminal character selector
+ -a include hidden shortcodes
+ -b disable color support
+ -c check charfile validity
+ -d show readme
+ -h show this message
+ -L show installed charfiles without the message
+ -l show installed charfiles
+ -n dont copy character to clipboard, avoids Xclip dependency
+
+Exit status:
+ 0 okay,
+ 1 charfile does not exist,
+ 2 charfile syntax error,
+ 3 usage error/invalid option,
+ 4 other error"
+}
+
+CHARDIR=$HOME/.cache/charsel
+function list() {
+ ls "$CHARDIR"/charfiles
+}
+
+function readme() {
+ cat /usr/share/doc/charsel/README.md
+}
+
+function missing_charfile() {
+ echo "The selected charfile is missing or invalid"
+ list
+ exit 1
+}
+
+# Merge global and local charfiles
+if [[ -d $CHARDIR ]]; then
+ rm -rf "${CHARDIR:?}"/*
+else
+ mkdir "$CHARDIR"
+fi
+
+LOCALCHARDIR=$HOME/.local/share/charsel/charfiles
+[[ -d $LOCALCHARDIR ]] || mkdir -p "$LOCALCHARDIR"
+
+localdirfiles="$LOCALCHARDIR"/*
+[[ -n "${#localdirfiles[*]}" ]] && cp -rf "$LOCALCHARDIR"/../* "$CHARDIR"
+
+globaldirfiles=($/usr/share/charfiles/)
+[[ -n "${#globaldirfiles[*]}" ]] && cp -rf /usr/share/charsel/* "$CHARDIR"
+
+# Check if charfile exists
+CHARFILE="$CHARDIR/charfiles/$2"
+function existence() {
+ if [[ ! -f $CHARFILE ]]; then
+ missing_charfile
+ fi
+}
+
+# VERY basic syntax check
+function validity() {
+ if [[ $(grep , "$CHARFILE" && grep - "$CHARFILE") ]]; then
+ echo "valid charfile"
+ else
+ existence
+ echo "invalid charfile"
+ exit 2
+ fi
+}
+
+# Look for arguments
+while getopts ":abcdhlLnvV" arg
+do
+ case ${arg} in
+ a)
+ SHOWALL="true"
+ ;;
+ b)
+ COLOR="bw"
+ ;;
+ c)
+ validity
+ exit 0
+ ;;
+ d)
+ readme
+ exit 0
+ ;;
+ h)
+ usage
+ exit 0
+ ;;
+ l)
+ echo "The following charfiles are installed:"
+ list
+ exit 0
+ ;;
+ L)
+ list
+ exit 0
+ ;;
+ n)
+ COPY="no"
+ ;;
+ ?)
+ echo "Invalid option"
+ usage
+ exit 3
+ ;;
+ esac
+done
+shift $((OPTIND-1))
+
+if [ $# -eq 0 ]; then
+ echo "Please enter a valid charfile, or use charsel -h for help."
+ charsel -l
+ exit 3
+fi
+
+# Redefine charfile and check file validity
+CHARFILE="$CHARDIR/charfiles/$1"
+existence
+validity
+
+# Dependency check
+if [[ $COPY == "no" ]]; then
+ if [[ ! -x /usr/bin/xclip ]]; then
+ echo "Please install xclip."
+ exit 4
+ fi
+fi
+
+# Define length of shortcode
+LENGTH=$(cut "$CHARFILE" -f 1 -d ',' -s \
+ | wc -L \
+ | cut -b 1)
-# Clear screen
clear
-while :
+# Define text formatting
+bold=$(tput bold)
+normal=$(tput sgr0)
+
+highlight=$(tput setaf 5)
+[[ $COLOR == bw ]] && highlight=$(tput setaf 7)
+
+white=$(tput setaf 7)
+
+# Main program
+while true
do
-
- # Put charfile into table
- column -t $CHARDIR/$1 -N SHORT,CHAR -R SHORT,CHAR --output-separator ' | '
- read -n 1 INPUT
-
- # Navigate to the right characther
- OUTPUT=$(grep $INPUT $CHARDIR/$1 | cut -c 3)
-
- # Clear screen
- clear
-
- # Copy output to clipboard
- echo $OUTPUT | xclip -selection clipboard
+ # Format output
+ echo "*---------*---------------*"
+ echo "| ${bold}${highlight}CHARSEL${white}${normal} |" "$1"
+ echo "*---------*---------------*"
+ echo ""
+
+ if [[ $SHOWALL == true ]]; then
+ sed "$CHARFILE" -e '/^[ \t]*#/d' | tail -n +2 \
+ | column -t -N "input","output" --output-separator ' | ' --separator ','
+ else
+ sed "$CHARFILE" -e '/^[ \t]*#/d' | grep -A 100 - | tail -n +2 \
+ | column -t -N "input","output" --output-separator ' | ' --separator ','
+ fi
+
+ echo ""
+ echo "*-------------------------*"
+ echo "| previous shorcode:" "$(echo $INPUT)"
+ echo "| previous output: " "$OUTPUT"
+ echo "*-------------------------*"
+
+ # User input
+ read -r -p "| ${bold}input shortcode: ${normal} " -N "$LENGTH" INPUT
+
+ if [[ $INPUT == ";"* ]]; then # Semicolon exts
+ clear
+ exit 0
+ else
+ # Finds line number of shortcode
+ LINENUMBER=$(cut -f 1 -d ',' -s "$CHARFILE" | grep -wn "$INPUT" | cut -d : -f 1)
+
+ # 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" ]]; then
+ OUTPUT=""
+ fi
+
+ # Copy output to clipboard
+ if [[ ! $COPY == "no" ]]; then
+ echo -n "$OUTPUT" | xclip -selection clipboard
+ fi
+
+ clear
+ fi
done
projects / charsel.git / blobdiff