#$Id: syntaxform.awk 635 2010-11-14 19:15:12Z karl $

#$Id: syntaxform.awk 635 2010-11-14 19:15:12Z karl $
# pdftex-t.tex --> pdftex-syntax.txt
# requires gawk due to gensub() function

BEGIN{
buffer = "";
}

/\015*$/ {
gsub(/\015*$/, "");
}

/^%%S NL/ {
print "";
next;
}

/^%%S/ {
gsub (/^%%S/, "%%" );
print;
next;
}

/^\\Syntax/ {
printing = 1;
indentation = 0;
next;
}

// {
if (buffer != "") {
gsub(/^ */, "");
$0 = buffer $0;
}
buffer = "";
}

/\|\|/ {
gsub(/\|\|/, "-");
}

/^ */{
gsub(/^ */, indspaces);
}

/\\Something/ {
$0 = gensub(/\\Something *{([^}]*)}/, "<\\1>", "g");
}

/\\Literal/ {
$0 = gensub(/\\Literal *{([^}]*)}/, "\\1", "g");
}

/\\Tex/ {
$0 = gensub(/\\Tex *{([^}]*)}/, "\\1", "g");
}

/\\tex/ {
$0 = gensub(/\\tex *{([^}]*)}/, "\\\\\\1", "g");
}

/\\Optional/ {
$0 = gensub(/\\Optional *{([^}]*)}/, "[\\1]", "g");
}

/\\Means/ {
gsub(/\\Means/, "-->");
indentation = match($0, /-->/);
indspaces = " ";
for(i=0; i < indentation; i++)
indspaces = indspaces " ";
}

/\\Lbrace/ {
gsub(/\\Lbrace/, "{");
}

/\\Rbrace/ {
gsub(/\\Rbrace/, "}");
}

/\\Or/ {
gsub(/\\Or/, "|");
}

/\\Next/ {
gsub(/\\Next /, "");
}

/\\Whatever/ {
whatind = 57;
whatpos = match($0, /\\Whatever/);
b = substr($0, 0, whatpos - 1)
c = substr($0, whatpos)
c = gensub(/\\Whatever *{([^}]*)}/, "(\\1)", "g", c);
$0 = b;
for(i = whatpos; i < whatind; i++)
$0 = $0 " ";
$0 = $0 c;
}

/^}/ {printing = 0;}

/% *$/ {
gsub(/% *$/, "");
buffer = $0;
next;
}

/^ *$/ {
$0 = "================= ERROR";
}

/ *$/ {
gsub(/ *$/, "");
}

{ if (printing) print; }