#!/bin/bash

# Todo:
#  Change case of variables:  \L \U \E
#  export SECLIST="SECTIONS"
export VARPREFIX="INI_"
export SECPREFIX="SECTION_"
export SECCNAMEKEY="%cannonical name%"
export TOPSEC="global"
initest() {
  echo "declare -A ${VARPREFIX}${SECPREFIX}${TOPSEC}"
  echo "${VARPREFIX}${SECPREFIX}${TOPSEC}[${SECCNAMEKEY}]=\"${TOPSEC}\""
  cat test.ini | sed -r "{
    /^[[:blank:]]*(#|;|$)/ d
    /^[[:blank:]]*\[.*\][[:blank:]]*$/ {
      s/(^[[:blank:]]*\[[[:blank:]]*|[[:blank:]]*\][[:blank:]]*$)//g ; h
      s/([[:blank:]]+|[^[:alnum:]])/_/g
      s/(.*)/declare -A ${VARPREFIX}${SECPREFIX}\1\n${VARPREFIX}${SECPREFIX}\1/ ; P ; g
      s/(.*)/\[${SECCNAMEKEY}\]=\"\1\"/
    }
    /^[[:blank:]]*[[:print:]]+[[:blank:]][=:]/ {
      d
    }
  }"
}

; initest


       [       [        invalid-section###3   ] $$    ]                    $
[        invalid-section###3   ] $$X
# Squash multiple blanks and invalid chars to single _ --  s/[^[:alnum:]]+/_/g
_invalid_section_3_
# Blanks and invalid chars replaced with _ no sqash --  s/[^[:alnum:]]/_/g
_________invalid_section___3_______
# Squash multiple blanks to single _ and replace invalid chars with _ --  s/([[:blank:]]+|[^[:alnum:]])/_/g
__invalid_section___3_____


#s/[[:blank:]]*\][[:blank:]]*[^[:alnum:]]+/_/g
#    s/^[[:blank:]]*\[[[:blank:]]*/declare -A ${VAR}_/
#    s/[[:blank:]]*\][[:blank:]]*$/=(/

#    s/(^[[:blank:]]*\[[[:blank:]]*)|([[:blank:]]*\][[:blank:]]*$)/X/g
#    s/[[:blank:]]+/ /g
#    s/^[[:blank:]]*\[[[:blank:]]*([[:graph:]]*)[[:blank:]]*\][[:blank:]]*$/[\1]/
l 120
#    s/^[[:blank:]]*(\[|\]) [[:blank:]]*$/\1/g
#    s/([^[:alnum:]]|_+)/_/g
  }
}"

    s/[[:blank:]]*(\[|\])[[:blank:]]*/\1/g
    s/([^[:alnum:]]|_+)/_/g


label regex jump back if s was done


#    s/\[_*([^]]*)/declare -A ${VAR}_\1=(/
#    s/\[_*(.*)_*\].*/declare -A ${VAR}_\1=(/
#    s/[[:blank:]]*\[(.*)\].*/declare -A ${VAR}_\1=(/
  }
#  /^(\)|declare -A)/ ! {
#    s/^[[:blank:]]*/\[/
#    s/[[:blank:]]*=[[:blank:]]*/\]=\"/
#    s/$/\"/g
#  }
}"


# Variables:
#  INI_ENV_PREFIX="INI_"
#  INI_GLOBAL_??="GLOBAL"
#  INI_SECTION_??="SECTION"
# Options:
#  

exit

  /^[[:blank:]]*\[.*\]/ {
    s/[[:blank:]]*\[/)\n/g
    # s/(.*)\]/declare -A ${VAR}_\1=(/g
  }



  -e "/^[[:blank:]]*\[.*\]/ s/[[:blank:]]*\[/)\n/g; s/(.*)\]/declare -A ${VAR}_\1=(/g"

  -e 's/^[[:blank:]]*\</[


sed -r \
  -e '/^[[:blank:]]*(#|;|$)/ d' \
  -e "1 ideclare -A ${VAR}_${TOP}=(" \
  -e "/^[[:blank:]]*\[.*\]/ s/[[:blank:]]*\[/)\n/g; s/(.*)\]/declare -A ${VAR}_\1=(/g"

  -e 's/^[[:blank:]]*\</[



  -e "1 s/^/declare -A ${VAR}_${TOP}=(\n/" \

 # if a line ends with a backslash, append the next line to it
 sed -e :a -e '/\\$/N; s/\\\n//; ta'

 # print the line immediately before a regexp, but not the line
 # containing the regexp
 sed -n '/regexp/{g;1!p;};h'

 # print the line immediately after a regexp, but not the line
 # containing the regexp
 sed -n '/regexp/{n;p;}'

 # print section of file from regular expression to end of file
 sed -n '/regexp/,$p'

 # print section of file between two regular expressions (inclusive)
 sed -n '/Iowa/,/Montana/p'             # case sensitive


# Option (-r) to make all variables read only.
# Option (-x) to export all variables.