comment.awk

# gawk -f comment.awk ./node_modules/lib-ruby-parser/index.d.ts
{
  if (/Represents/)
  {
    i = 0
    sub(/\s+\/\/\s*/, "")
    comments[i++] = $0
    recording = !recording
  }
  else if (/export class/ && recording)
  {
    recording = !recording
    z = 0
    for (k in comments)
    {
      classes[$3][z++] = comments[k]
      # print "class: " $3 ", comment idx: " k ", comment:" comments[k]
    }
    delete comments
  }
  else if (recording)
  {
    sub(/\s+\/\/\s*/, "")
    comments[i++] = $0
  }
}
END {
  for (cname in classes)
  {
    contents = "<!-- BEGIN_AUTOGENERATED -->\n# " cname " Node Formatting" "\n"
    for (cc in classes[cname])
    {
      contents = contents "\n" classes[cname][cc]
    }
    contents = contents "\n<!-- END_AUTOGENERATED -->"
    tmp_docfile = "./tmp/src/nodes/" cname ".fixtures.md.tmp"
    docfile = "./src/nodes/" cname ".fixtures.md"
    headerfile = "./tmp/src/nodes/" cname ".header.md"
    print contents > headerfile
    printf("awk 'NR==1{while ((getline line < \"%s\") > 0) {print line}} NR!=1{print}' %s > %s\n", headerfile, docfile, tmp_docfile) | "sh"
    printf("mv %s %s\n", tmp_docfile, docfile) | "sh"
    close("sh")
  }
}