initial public commit

diff --git a/tobin b/tobin
new file mode 100755 (executable)
index 0000000..d9e6830
--- /dev/null
+++ b/tobin
@@ -0,0 +1,77 @@
+#!/bin/sh
+
+conv() {
+       while [ $# -gt 0 ]; do
+               if printf "%s" "$1" | grep -qE '^[0-9]+$'; then
+                       if [ "$m" -eq 0 ]; then 
+                               printf "Decimal %s → Binary: " "$1"
+                       fi
+                       printf "%s" "$p"
+                       printf "obase=2; %s" "$1" | bc
+
+               elif printf "%s" "$1" | grep -qE '^([0-9A-Fa-f]+|0x[0-9A-Fa-f]+)$'; then
+                       if [ "$m" -eq 0 ]; then
+                               printf "Hex %s → Binary: " "$1"
+                       fi
+                       printf "%s" "$p"
+                       printf "ibase=16; obase=2; %s" "$(printf "%s" "$1" | sed 'y/abcdef/ABCDEF/; s/^0x//')" | bc
+
+               else
+                       printf "Error: '%s' is not a valid decimal or hexadecimal number\n" "$1" >&2
+                       stat=1
+
+               fi
+               shift
+       done
+       return "$stat"
+}
+
+
+main() {
+       if ! [ "$1" = "x" ] && ! [ -t 0 ]; then
+               cat | tr '\n' ' ' | xargs tobin "x" "$@"
+               return "$?"
+
+       elif [ "$1" = "x" ]; then
+               shift
+
+       fi
+       
+       if [ $# -eq 0 ]; then
+               printf "Error: No arguments provided\nusage: tobin [-mnp] number1 number2 ...\n" >&2
+               return 2
+
+       fi
+       
+       stat=0  
+       m=0; n=0; p=""
+       while getopts "lmnp" flag; do
+               case "$flag" in
+                       m) m=1; ;;
+                       n) n=1; ;;
+                       p) p="0b" ;;
+                       *) printf "usage: tobin [-mnp] number1 number2 ...\n" >&2 ; return 2 ;;
+               esac
+       done
+
+       shift $(( OPTIND - 1 ))
+       
+       t=$(conv "$@")
+       stat=$?
+
+       if [ "$n" -eq 1 ] && [ "$m" -eq 1 ]; then
+               t=$(printf "%s" "$t" | tr '\n' ' ')
+
+       elif [ "$n" -eq 1 ] && [ "$m" -eq 0 ]; then
+               t=$(printf "%s" "$t" | tr '\n' ';')
+
+       else
+               t=$(printf "%s" "$t")
+
+       fi
+       
+       printf "%s\n" "$t"      
+       return "$stat"
+}
+
+main "$@"

diff --git a/todec b/todec
new file mode 100755 (executable)
index 0000000..d48311d
--- /dev/null
+++ b/todec
@@ -0,0 +1,82 @@
+#!/bin/sh
+
+conv() {
+       while [ $# -gt 0 ]; do
+               if printf "%s" "$1" | grep -qE '^0b[0-1]+$'; then
+                       if [ "$m" -eq 0 ]; then 
+                               printf "Binary %s → Decimal: " "$1"
+                       fi
+                       t=$(printf "%s" "$1" | sed 's/^0b//')
+                       printf "ibase=2; %s / %s" "$t" "$k" | bc | tr -d '\n' && printf "%s\n" "$p"
+
+               elif printf "%s" "$1" | grep -qE '^([0-9A-Fa-f]+|0x[0-9A-Fa-f]+)$'; then
+                       if [ "$m" -eq 0 ]; then
+                               printf "Hex %s → Decimal: " "$1"
+                       fi
+                       t=$(printf "%s" "$1" | sed 's/^0x//')
+                       printf "ibase=16; %s / %X" "$(printf "%s" "$t" | sed 'y/abcdef/ABCDEF/')" "0b$k" | bc | tr -d '\n' && printf "%s\n" "$p"
+
+               else
+                       printf "Error: '%s' is not a valid decimal or hexadecimal number\n" "$1" >&2
+                       stat=1
+
+               fi
+               shift
+       done
+       return "$stat"
+}
+
+
+main() {
+       if ! [ "$1" = "x" ] && ! [ -t 0 ]; then
+               cat | tr '\n' ' ' | xargs todec "x" "$@"
+               return "$?"
+
+       elif [ "$1" = "x" ]; then
+               shift
+
+       fi
+       
+       if [ $# -eq 0 ]; then
+               printf "Error: No arguments provided\nusage: todec [-mn] number1 number2 ...\n" >&2
+               return 2
+
+       fi
+       
+       stat=0  
+       k=1; m=0; n=0; p='';
+       while getopts "bmnKMG" flag; do
+               case "$flag" in
+                       m) m=1; ;;
+                       n) n=1; ;;
+                       # 1024
+                       K) k=10000000000; p='K'; ;;
+                       # 1 048 576
+                       M) k=100000000000000000000; p='M'; ;;
+                       # 1 073 741 824
+                       G) k=1000000000000000000000000000000; p='G'; ;;
+                       *) printf "usage: todec [-mnKMG] number1 number2 ...\n" >&2 ; return 2 ;;
+               esac
+       done
+
+       shift $(( OPTIND - 1 ))
+       
+       t=$(conv "$@")
+       stat=$?
+
+       if [ "$n" -eq 1 ] && [ "$m" -eq 1 ]; then
+               t=$(printf "%s" "$t" | tr '\n' ' ')
+
+       elif [ "$n" -eq 1 ] && [ "$m" -eq 0 ]; then
+               t=$(printf "%s" "$t" | tr '\n' ';')
+
+       else
+               t=$(printf "%s" "$t")
+
+       fi
+       
+       printf "%s\n" "$t"      
+       return "$stat"
+}
+
+main "$@"

diff --git a/tohex b/tohex
new file mode 100755 (executable)
index 0000000..e272405
--- /dev/null
+++ b/tohex
@@ -0,0 +1,81 @@
+#!/bin/sh
+
+conv() {
+       while [ $# -gt 0 ]; do
+               if printf "%s" "$1" | grep -qE '^[0-9]+$'; then
+                       if [ "$m" -eq 0 ]; then 
+                               printf "Decimal %s → Hex: " "$1"
+                       fi
+                       printf "%s" "$p"
+                       printf "%X\n" "$1"
+
+               elif printf "%s" "$1" | grep -qE '^0b[0-1]+$'; then
+                       if [ "$m" -eq 0 ]; then
+                               printf "Binary %s → Hex: " "$1"
+                       fi
+                       printf "%s" "$p"
+                       printf "%X\n" "$1"
+
+               else
+                       printf "Error: '%s' is not a valid binary or decimal number\n" "$1" >&2
+                       stat=1
+
+               fi
+               shift
+       done
+       return "$stat"
+}
+
+
+main() {
+       if ! [ "$1" = "x" ] && ! [ -t 0 ]; then
+               cat | tr '\n' ' ' | xargs tohex "x" "$@"
+               return "$?"
+
+       elif [ "$1" = "x" ]; then
+               shift
+
+       fi
+       
+       if [ $# -eq 0 ]; then
+               printf "Error: No arguments provided\nusage: tohex [-lmnp] number1 number2 ...\n" >&2
+               return 2
+
+       fi
+       
+       stat=0  
+       l=0; m=0; n=0; p=""
+       while getopts "lmnp" flag; do
+               case "$flag" in
+                       l) l=1; ;;
+                       m) m=1; ;;
+                       n) n=1; ;;
+                       p) p="0x" ;;
+                       *) printf "usage: tohex [-lmnp] number1 number2 ...\n" >&2 ; return 2 ;;
+               esac
+       done
+
+       shift $(( OPTIND - 1 ))
+       
+       t=$(conv "$@")
+       stat=$?
+
+       if [ "$n" -eq 1 ] && [ "$m" -eq 1 ]; then
+               t=$(printf "%s" "$t" | tr '\n' ' ')
+
+       elif [ "$n" -eq 1 ] && [ "$m" -eq 0 ]; then
+               t=$(printf "%s" "$t" | tr '\n' ';')
+
+       else
+               t=$(printf "%s" "$t")
+
+       fi
+       
+       if [ "$l" -eq 1 ]; then
+               t=$(printf "%s" "$t" | tr '[:upper:]' '[:lower:]')
+       fi
+       printf "%s\n" "$t"      
+       return "$stat"
+}
+
+main "$@"