% @ is a valid character in some entries
actual '?' % ? instead of @

preamble	"

\\newcounter{indexanchor}
\\begin{theindex}\n
\\def\\hindexhead#1{\\ifcase#1가\\or ㄲ\\or 나\\or 다\\or ㄸ\\or
  라\\or 마\\or 바\\or ㅃ\\or 사\\or ㅆ\\or 아\\or 자\\or ㅉ\\or
  차\\or 카\\or 타\\or 파\\or 하\\else#1\\fi}
\\def\\indexhead#1{\\textbf{#1}%
\\ifthenelse{\\boolean{@pdfbookmark}}%
{\\stepcounter{indexanchor}\\pdfbookmark[1]{#1}{\\theindexanchor}}%
{}}\n\n"
headings_flag	    1
group_skip          "\n\n\\indexspace\n"
item_0              "\n\\item \\idxmark{"
heading_prefix      "\\indexhead{"
heading_suffix      "}\\nopagebreak\n"
symhead_positive    "\\symbolheadname"
numhead_positive    "\\numberheadname"
delim_0 "}, "