diff --git a/catmd.sh b/catmd.sh
new file mode 100755
index 0000000..fadee5e
--- /dev/null
+++ b/catmd.sh
@@ -0,0 +1,340 @@
+#!/bin/bash
+
+DEBUG=:
+#DEBUG=echo
+
+#INDENT_SPACE_SHORT=2
+#INDENT_SPACE=4
+#INDENT_TAB=2
+#rex_nonemptyline_indent='^([ ]{'$INDENT_SPACE_SHORT'}|[ ]{'$INDENT_SPACE'}|[\	]{'$INDENT_TAB'})[[:graph:]]+' # for $INDENT_SPACE spaces or $INDENT_TAB tabs
+
+rex_emptyline='^$'
+rex_nonemptyline='^([[:blank:]]*)([[:graph:]]+.*)'
+rex_header='^[[:blank:]]*(#+)[[:blank:]]*(.*)'
+rex_list_start='^([[:blank:]]{0,1})([*+-]{1} +|[[:digit:]]+\.)(.*)'; flag_list=0
+rex_list_level='^([[:blank:]]{2,})([*+-]{1} +|[[:digit:]]+\.)(.*)'
+rex_list="$rex_list_start"
+rex_codeblock='^[[:blank:]]*(```)(.*)'
+rex_codeinline_start='([^`]*)(`{1,2})(.*)'
+rex_codeinline_space='(^[[:blank:]]{4})(.*)'
+rex_codeinline1='([^`]*)(`)(.*)'
+rex_codeinline2='(``)(.*)$' # first part of $line: ${line%"${BASH_REMATCH[0]}"}
+rex_codeinline="$rex_codeinline_start"
+rex_quote='^([[:blank:]]*>)(.*)'; flag_quote=0
+rex_emphasis_start='([^*_]*)([*_]{1,2})([^ ].*)'
+rex_emphasis_end='([^*_]*)([*_]{1,2})(.*)'
+rex_emphasis="$rex_emphasis_start"
+rex_link='([^[]*\[+)([^]]*)(\]+ *[\([])([^]\)]*)([]\)].*)'
+rex_autolink='([^<]*<)([^>]*)(>)(.*)'
+
+LINE_INDENT=
+LINE_INDENT_LEVEL=0
+PARSE_STATE=0
+PARSE_FIX=0
+FIX_STATE=0
+UNFIX_STATE=0
+
+# Next parsted line is directed directly to the fixed state
+fix() {
+  PARSE_FIX=1
+  FIX_STATE=$PARSE_STATE
+  [ ! -z "$1" ] && PARSE_STATE=$1
+}
+isfix() { [ $PARSE_FIX -ne 0 ] && [ $FIX_STATE -eq $PARSE_STATE ]; return $?; }
+# Unfix and/or stop parsing for this line
+unfix() {
+  UNFIX_STATE=1
+  PARSE_FIX=0
+  FIX_STATE=0
+}
+isunfix() { [ $UNFIX_STATE -ne 0 ]; return $?; }
+# Decides when to got the next parser stop
+# Called usually like: fall || break
+fall() {
+  if isunfix; then
+    $DEBUG -n "U]"
+    UNFIX_STATE=0
+    PARSE_STATE=0
+    return 1
+  fi
+  # Fall to next PARSE_STATE if not fixed
+  if [ $PARSE_FIX -eq 0 ]; then
+    ((PARSE_STATE++))
+    return 0
+  fi
+  if [ $PARSE_STATE -ne $FIX_STATE ]; then
+    PARSE_STATE=$FIX_STATE
+    return 0
+  else
+    $DEBUG -n "B]"
+    return 1
+  fi
+}
+
+parseline() {
+  local line="$1"
+  local tocheck="$1"
+  local format_prefix=
+  local format_suffix=
+
+  [ $PARSE_FIX -eq 0 ] && PARSE_STATE=0
+
+  while : ; do
+    $DEBUG -n "$PARSE_STATE]"
+    case "$PARSE_STATE" in
+      0) ## Empty line ##
+        if [[ "$tocheck" =~ $rex_emptyline ]]; then
+          # End quote
+          [ $flag_quote -ne 0 ] && flag_quote=0 && unfix
+          
+          # TODO? Catch rouge formates with empty lines outside codeblocks
+          echo -ne "$FO_RESET"
+          format_prefix=""
+          format_suffix=""
+        fi
+        fall || break;;
+      1) ## Non empty line ##
+        if [[ "$tocheck" =~ $rex_nonemptyline ]]; then
+          # Detect indent TODO detect levels of indent
+          local tab=$(printf '\t')
+          case "${BASH_REMATCH[1]}" in
+            "${tab}${tab}")
+              LINE_INDENT="${BASH_REMATCH[1]}"
+              $DEBUG -n "2t]";;
+            '    ')
+              LINE_INDENT="${BASH_REMATCH[1]}"
+              $DEBUG -n "4s]";;
+            '  ')
+              LINE_INDENT="${BASH_REMATCH[1]}"
+              $DEBUG -n "2s]";;
+            *)
+              LINE_INDENT=
+          esac
+          # List ending
+          if [ $flag_list -ne 0 ] && [ -z "$LINE_INDENT" ]; then
+            rex_list="$rex_list_start"
+            flag_list=0
+          fi
+        fi
+        fall || break;;
+      2) ## List ##
+        if [[ "$tocheck" =~ $rex_list ]]; then
+          local indent=
+          ((flag_list++))
+          rex_list="$rex_list_level"
+          [ $flag_list -gt 1 ] && indent="$LINE_INDENT" #"${BASH_REMATCH[1]}"
+          printf "%s%b%s%b" "$indent" "$FO_LISTITEM" "${BASH_REMATCH[2]}" "$FO_RESET"
+          tocheck="${BASH_REMATCH[3]}"
+          line="$tocheck"
+        elif [[ "$tocheck" =~ $rex_list_start ]]; then
+          flag_list=1
+          rex_list="$rex_list_start"
+          continue
+        fi
+        fall || break
+        ;;
+      3) ## Header ##
+        if [[ "$tocheck" =~ $rex_header ]]; then
+          format_prefix="${FO_HEADLINE}"
+          format_suffix="${FO_RESET}"
+          unfix
+        fi
+        fall || break;;
+      4) ## Quotes
+        if [[ "$tocheck" =~ $rex_quote ]] || isfix; then
+          # TODO continue parsing quoted string
+          fix 0
+          flag_quote=1
+          format_prefix="${FO_QUOTE}"
+          format_suffix="${FO_RESET}"
+          break
+        else
+          fall || break
+        fi
+        ;;
+      5) ## Multiline code blocks ##
+        if [[ "$tocheck" =~ $rex_codeblock ]]; then
+          if isfix; then
+            format_suffix="${FO_RESET}"
+            unfix
+          else
+            format_prefix="${FO_CODEBLOCK}"
+            fix
+          fi
+        fi
+        fall || break;;
+      6) ## Inline code blocks ##
+        if [[ "$tocheck" =~ $rex_codeinline ]]; then
+          if isfix; then
+            local lazym="${tocheck%"${BASH_REMATCH[0]}"}"
+            if [ -z "$lazym" ]; then
+              printf "%s%b" "${BASH_REMATCH[1]}${BASH_REMATCH[2]}" "${FO_RESET}"
+              tocheck="${BASH_REMATCH[3]}"
+            else
+              printf "%s%b" "${lazym}${BASH_REMATCH[1]}" "${FO_RESET}"
+              tocheck="${BASH_REMATCH[2]}"
+            fi
+            rex_codeinline="$rex_codeinline_start"
+            unfix
+          else
+            if [ '``' == "${BASH_REMATCH[2]}" ]; then
+              rex_codeinline="$rex_codeinline2"
+            else
+              rex_codeinline="$rex_codeinline1"
+            fi
+            printf "%s%b%s" "${BASH_REMATCH[1]}" "${FO_CODEBLOCK}" "${BASH_REMATCH[2]}"
+            tocheck="${BASH_REMATCH[3]}"
+            fix
+          fi
+          line="$tocheck"
+        elif [[ "$tocheck" =~ $rex_codeinline_space ]]; then
+          # TODO check for list indentation
+          format_suffix="$FO_RESET"
+          printf "%b%s" "$FO_CODEBLOCK" "${BASH_REMATCH[2]}"
+          line=
+          break
+        elif isfix; then
+          # Open inline block at end of line
+          fall || break
+        fi
+        fall;;
+      7) ## Inline emphasis start
+        if [[ "$tocheck" =~ $rex_emphasis ]]; then
+          local fo_emphasis=$FO_EMPHASIS1
+          if isfix; then
+            printf "%s%b" "${BASH_REMATCH[1]}${BASH_REMATCH[2]}" "${FO_RESET}"
+            rex_emphasis="$rex_emphasis_start"
+            unfix
+          else
+            if [ '**' == "${BASH_REMATCH[2]}" ] || [ '__' == "${BASH_REMATCH[2]}" ]; then
+              fo_emphasis=$FO_EMPHASIS2
+            fi
+            printf "%s%b%s" "${BASH_REMATCH[1]}" "${fo_emphasis}" "${BASH_REMATCH[2]}"
+            rex_emphasis="$rex_emphasis_end"
+            fix
+          fi
+          tocheck="${BASH_REMATCH[3]}"
+          line="$tocheck"
+        elif isfix; then
+          # Open inline block at end of line
+          fall || break
+        fi
+        fall;;
+      8) ## Links within one line ##
+        if [[ "$tocheck" =~ $rex_link ]]; then
+          #echo -n "m]"
+          #echo "${BASH_REMATCH[0]}"
+          #echo "${BASH_REMATCH[1]} ! ${BASH_REMATCH[2]} ! ${BASH_REMATCH[3]} ! ${BASH_REMATCH[4]} ! ${BASH_REMATCH[5]}"
+          printf "%s%b%s%b%s%b%s%b%s" "${BASH_REMATCH[1]}" "${FO_LINKTEXT}" "${BASH_REMATCH[2]}" "${FO_RESET}" "${BASH_REMATCH[3]}" "${FO_LINKURL}" \
+            "${BASH_REMATCH[4]}" "${FO_RESET}"
+          tocheck="${BASH_REMATCH[5]}"
+          line="$tocheck"
+          [ ! -z "$tocheck" ] && fix
+        elif isfix; then
+          unfix
+          fall || break
+        fi
+        fall;;
+      9) ## Auto-links within one line ##
+        if [[ "$tocheck" =~ $rex_autolink ]]; then
+          #echo -n "m]"
+          #echo "${BASH_REMATCH[0]}"
+          #echo "${BASH_REMATCH[1]} ! ${BASH_REMATCH[2]} ! ${BASH_REMATCH[3]} ! ${BASH_REMATCH[4]} ! ${BASH_REMATCH[5]}"
+          printf "%s%b%s%b%s" "${BASH_REMATCH[1]}" "${FO_LINKURL}" "${BASH_REMATCH[2]}" "${FO_RESET}" "${BASH_REMATCH[3]}"
+          tocheck="${BASH_REMATCH[4]}"
+          line="$tocheck"
+          [ ! -z "$tocheck" ] && fix
+        elif isfix; then
+          unfix
+          fall || break
+        fi
+        fall;;
+      *) ## Regular text
+        $DEBUG -n "e]$tocheck"
+        break;;
+    esac
+  done
+
+  printf "%b%s%b" "$format_prefix" "$line" "$format_suffix"
+  printf "\n"
+}
+
+catmd() {
+  local line=
+  for arg in "$@"; do
+    case "$1" in 
+      -*)
+        # Ignore args for now
+        shift;;
+    esac
+  done
+  local file="$1"
+
+  while IFS='' read -r line; do 
+    parseline "$line"
+  done <"${file:-/dev/stdin}"
+  echo -en "$FO_RESET"
+}
+
+## Font formating
+FO_BLINK=$(tput blink) # '\033[5m'
+FO_BOLD=$(tput bold) # '\033[1m'
+FO_SO=$(tput smso) # '\033[7m'
+FO_SO_E=$(tput rmso) # '\033[27m'
+FO_UL=$(tput smul) # '\033[4m'
+FO_UL_E=$(tput smul) # '\033[24m'
+FO_INVIS=$(tput invis) # '\033[8m'
+## Rareley supported
+FO_DIM=$(tput dim)
+FO_REV=$(tput rev)
+FO_RESET=$(tput sgr0)
+
+## Colorcodes
+## 
+##  '\033[Xm'      - Basic 8 colors
+##                   X = 30..37 foreground
+##                     = 40..47 background
+##                     = Black, Red, Green, Yellow, Blue, Magenta, Cyan, Light gray
+##                     = 39 = default foreground
+##                     = 49 = default background
+##                 - Basic "high contrast" colors
+##                   X =  90...97 foreground
+##                     = 100..107 background
+##                     = Dark grey, Light red, green, yellow, blue, magenta, cyan, white
+##                 - Format
+##                   X: 0 = reset, 1 = bold, 2 = dim,
+##                      4 = underline, 5 = slow blink,
+##                      7 = Reverse, 8 = hidden
+##                   20+X: Reset of formating
+##                         e.g. 21 = reset bold
+##  '\033[38;5;Xm' - xterm-256 foreground colors  X = 0..255
+##  '\033[48;5;Xm' - xterm-256 foreground colors  X = 0..255
+COB_BLACK='\033[40m'
+COB_LIGHTGRAY='\033[100m'
+COF_BLACK='\033[0;30m' 
+COF_DARKGRAY='\033[1;30m'
+COF_RED='\033[0;31m'
+COF_LIGHTRED='\033[1;31m'
+COF_GREEN='\033[0;32m'
+COF_LIGHTGREEN='\033[1;32m'
+COF_ORANGE='\033[0;33m'
+COF_YELLOW='\033[1;33m'
+COF_BLUE='\033[0;34m'
+COF_LIGHTBLUE='\033[1;34m'
+COF_PURPLE='\033[0;35m'
+COF_LIGHTPURPLE='\033[1;35m'
+COF_CYAN='\033[0;36m'
+COF_LIGHTCYAN='\033[1;36m'
+COF_LIGHTGRAY='\033[0;37m'
+COF_WHITE='\033[1;37m'
+
+FO_HEADLINE="$FO_BOLD$FO_SO"
+FO_LISTITEM="$COF_ORANGE"
+FO_EMPHASIS1="${COF_LIGHTGRAY}"
+FO_EMPHASIS2="${COF_WHITE}"
+FO_LINKTEXT="${COF_LIGHTGRAY}"
+FO_LINKURL="${FO_UL}"
+FO_CODEBLOCK="$COF_LIGHTGRAY$COB_LIGHTGRAY"
+FO_QUOTE='\033[96;100m'
+
+catmd "$@"