Sample data
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- sample1.csv: comma and double quote, embedded commas and quotes
- sample1a.csv: semicolon and single quote, embedded semicolons and quotes
- sample1b.csv: comma and double quote, embedded commas, quotes and newlines
- sample1c.csv: comma and double quote, embedded commas and quotes


Simple, but not trivial, use cases
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(1) Print selected columns
- CSV input: a,"b,c",d
- CSV output: "b,c",d
- Ideal code: { print $2, $3 }

(2) Change separator
- CSV input: a,"b,c",d
- CSV output: a;"b,c";d
- Potential code: BEGIN {FS="," ; OFS=";"} { $1=$1 ; print }

(3) Change quote
- CSV input: a,"b,c",d
- CSV output: a,'b,c',d
- Potential code: BEGIN {CSVINQ="\"" ; CSVOUTQ="'"} { $1=$1 ; print }
  # new variables? (hmm..)

(4) Change selected column
- CSV input: a,"b,c",d
- CSV output: a,'B|C',d
- Potential code: BEGIN {CSVOUTQ="'"} { $2 = "B|C" }

(5) Change column and quote
- CSV input: a,"b,c",d
- CSV output: a,"B|C",d
- Potential code: { $2 = "B|C" }
  # Note; no escaped quotes in string "B|C" (not "\"B|C\"")

(6) Append column
- CSV input: a,"b,c",d
- CSV output: a,"b,c",d,"e f"
- Potential code: { $0 = $0 "e f" }

(7) Append column, manually formatted
- CSV input: a,"b,c",d
- CSV output: a,"b,c",d,"e f"
  # implicit knowledge of CSV format? (hmm..) Or explicit format
- Potential code: { $0 = $0 ",\"e f\"" }
  # not very supportive

(8) Prepend column
- Potential code: { $0 = "e f" $0 }
  # analogous comments like in previous function

(9) Insert Colum (at arbitrary positions!)
- CSV input: a,"b,c",d
- CSV output: a,"b,c",xy,d
- Potential code: # I have no idea at the moment

(10) Use of escapes in data
- CSV input/output: a,"b\"c",d
  # Will that be handled in the extension in some way? (\" or "")