#!/bin/gawk

BEGIN {
    add_line_after != "" ;
    separator = "" ;

    wide_separator = "" ;
    for(i=0;i<=140;i++) {
	wide_separator = wide_separator "-" ;
    }

    ie_separator = "-- " ;
    for (i=0;i<=137;i++) {
	ie_separator = ie_separator "=" ;
    }
}

/^[0-9]+\./ {
    in_IE = "no" ;
}

/^-- ASN1START/ {
    print "";
    in_ASN1 = "yes";
    next;
}

/^-- ASN1STOP/ {
    in_ASN1 = "no";
    next;
}

/^-- TAG-/ {
    next;
}

/^[[:space:]]*$/ {

     if (next_line == "condition") {
	 print separator ;
     }
     if ((next_line == "field description") || (next_line == "field name")){
	 print separator ;
     }
     
     next_line = "" ;
#     #if (empty_line == "yes") {
#	 next;
#     }
     empty_line = "yes" ;
     
#    print "a" ;
#    print ; 
}

/^–[[:space:]]+ParentIE-WithEM$/ {
    exit 0 ;
}

/^–[[:space:]]+[A-Za-z0-9-]+$/ {
    if (empty_line == "yes") {
	print ie_separator;
	print "-- IE: " $2;
	print "" ;
	empty_line = "no" ;
	conditions = "" ;
    }
    in_IE = "yes" ;
    next ;
}

/^Conditional Presence/ {
    add_line_after = "";
    separator = "" ;

    $0 = "Conditional presence" ;
    for(i=0;i<=140;i++) {
	separator = separator "-" ;
    }
#    print separator;
    #add_line_after = separator ;
    next_line = "condition" ;
}

# Need to catch "x and y field descriptions"

/field descriptions$/ {
    add_line_after = "";
    separator = "" ;

    for(i=0;i<=140;i++) {
	separator = separator "-" ;
    }
#    print separator;
#   add_line_after = separator ;
    next_line = "field name" ;
}

#/^[A-Za-z0-9-]+[[:space:]]+[A-Za-z0-9-]+/ {
#    if (next_line == "field description") {
#	add_line_after = separator ;
#	next_line = "field name";
#    } 
#}

/^[A-Za-z0-9-]+(, [A-Za-z0-9-]+)*$/ {
    if (next_line == "field name") {
	
	print separator ;
	
	$0 = "Field: " $0
	#add_line_after = " ";
	next_line = "field description";
    }
    else if (next_line == "field description") {
	print separator ;
	
	$0 = "Field: " $0
	#add_line_after = separator ;
	#print "separator est " separator;
	next_line = "field name";
    } 
}



{
    if (in_IE == "yes") {	
	if ((next_line == "condition") && ($1 != "Conditional")) {
	   
	    if (index(conditions, $1) != 0) {
		print separator;
		print "-- Condition: " $1;
		$1 = "";
	    }
	    if ((in_ASN1 == "no") && !(/^\s*$/)) {
		$0 = "-- " $0 ;
	    }
	    print ;
	}

	else  {
	    if ((in_ASN1 == "no") && !(/^\s*$/)) {
		$0 = "-- " $0 ;
	    }
	    print;
	}
	
	if (add_line_after != "") {
	    print add_line_after ;
	    add_line_after = "" ;
	}

	if (/-- Cond [A-Za-z0-9-]+$/) {
	    conditions = conditions " " $NF ;
	}
    }	
}