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Full Discussion: Converting comma separated to pipe delimited file
Top Forums Shell Programming and Scripting Converting comma separated to pipe delimited file Post 302420252 by anijan on Tuesday 11th of May 2010 06:04:26 AM
Old 05-11-2010
Error Converting comma separated to pipe delimited file
Hi,

I came across a very good script to convert a comma seperated to pipe delimited file in this forum. the script serves most of the requirement but looks like it does not handle embedded double quotes and commas i.e if the input is like
Code:
 
1234, "value","first,second", "LDC5"monitor", "three""","four"

The desired output should be
Code:
1234|value|first,second|LDC5"monitor|three""|four

but the output is like
Code:
1234|value|first|second|LDC5monitor|three"|four"

please suggest if it possible to modify the code such that it handles comma and double quotes in the substring.
Code:
BEGIN { FS=SUBSEP; OFS="|" }

{
  result = setcsv($0, ",")
  print
}

function setcsv(str, sep, i) {
  gsub(/""/, "\035", str)
  gsub(sep, FS, str)

  while (match(str, /"[^"]*"/)) {
    middle = substr(str, RSTART+1, RLENGTH-2)
    gsub(FS, sep, middle)
    str = sprintf("%.*s%s%s", RSTART-1, str, middle,
      substr(str, RSTART+RLENGTH))
  }
  if (index(str, "\"")) {
    return ((getline) > 0) ? setcsv(str (RT != "" ? RT : RS) $0, sep) : !setcsv(str "\"", sep)
  } else {
    gsub(/\035/, "\"", str)
    $0 = str

    for (i = 1; i <= NF; i++)
      if (match($i, /^"+$/))
        $i = substr($i, 2)

    $1 = $1 ""
    return 1
  }
}

Last edited by zaxxon; 05-11-2010 at 07:10 AM.. Reason: use code tags also for data and logs, ty
 

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LEARN ABOUT DEBIAN

stag-flatten

STAG-FLATTEN(1p)					User Contributed Perl Documentation					  STAG-FLATTEN(1p)

NAME

       stag-flatten - turns stag data into a flat table

SYNOPSIS

	 stag-flatten -c name -c person/name dept MyFile.xml

DESCRIPTION

       reads in a file in a stag format, and 'flattens' it to a tab-delimited table format. given this data:

	 (company
	  (dept
	   (name "special-operations")
	   (person
	    (name "james-bond"))
	   (person
	    (name "fred"))))

       the above command will return a two column table

	 special-operations	 james-bond
	 special-operations	 fred

       If there are multiple values for the columns within the node, then the cartesian product will be calculated

USAGE

	 stag-flatten [-p PARSER] [-c COLS] [-c COLS] NODE <file>

ARGUMENTS

       -p|parser FORMAT
	   FORMAT is one of xml, sxpr or itext

	   xml assumed as default

       -c|column COL1,COL2,COL3,..
	   the name of the columns/elements to write out

	   this can be specified either with multiple -c arguments, or with a comma-seperated (no spaces) list of column (terminal node) names
	   after a single -c

       -n|nest
	   if set, then the output will be a compress repeating values into the same row; each cell in the table will be enclosed by {}, and will
	   contain a comma-delimited set of values

SEE ALSO

       Data::Stag

perl v5.10.0							    2008-12-23							  STAG-FLATTEN(1p)
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