README: add awk example function to unescape json2tsv output - json2tsv - JSON to TSV converter
  HTML git clone git://git.codemadness.org/json2tsv
   DIR Log
   DIR Files
   DIR Refs
   DIR README
   DIR LICENSE
       ---
   DIR commit a6acda04e4f9f2285e126f7045b83bf7e2f8bf39
   DIR parent 84da1dac7041f1fc700cade27c55613a6f900de4
  HTML Author: Hiltjo Posthuma <hiltjo@codemadness.org>
       Date:   Sun, 21 Mar 2021 12:34:54 +0100
       
       README: add awk example function to unescape json2tsv output
       
       Diffstat:
         M README                              |      30 ++++++++++++++++++++++++++++++
       
       1 file changed, 30 insertions(+), 0 deletions(-)
       ---
   DIR diff --git a/README b/README
       @@ -83,6 +83,36 @@ END {
        }'
        
        
       +The following awk function can be used to unescape the json2tsv escape
       +sequences \t, \n and \\:
       +
       +awk '
       +BEGIN {
       +        FS = OFS = "\t";
       +}
       +function unescape(s) {
       +        for (data = ""; (idx = index(s, "\\")); s = substr(s, idx + 2)) {
       +                prev = substr(s, 1, idx - 1)
       +                c = substr(s, idx + 1, 1)
       +                if (c == "t")
       +                        data = data prev "\t"
       +                else if (c == "n")
       +                        data = data prev "\n"
       +                else if (c == "\\")
       +                        data = data prev "\\"
       +                else
       +                        data = data prev # ignore other.
       +        }
       +        return data s # rest
       +}
       +$2 == "s" && index($3, "\\") {
       +        $3 = unescape($3);
       +}
       +{
       +        print $3;
       +}'
       +
       +
        License
        -------