/*  Part of XPCE --- The SWI-Prolog GUI toolkit

    Author:        Jan Wielemaker and Anjo Anjewierden
    E-mail:        jan@swi-prolog.org
    WWW:           https://www.swi-prolog.org/projects/xpce/
    Copyright (c)  1985-2025, University of Amsterdam
			      SWI-Prolog Solutions b.v.
    All rights reserved.

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions
    are met:

    1. Redistributions of source code must retain the above copyright
       notice, this list of conditions and the following disclaimer.

    2. Redistributions in binary form must reproduce the above copyright
       notice, this list of conditions and the following disclaimer in
       the documentation and/or other materials provided with the
       distribution.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
    FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
    COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
    BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
    CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
    ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    POSSIBILITY OF SUCH DAMAGE.
*/

#include <h/kernel.h>
#include <h/unix.h>

static HashTable SyntaxTables;		/* @syntax_tables */

#define FLAGS_SIZE(t)   (sizeof(unsigned short) * valInt(t->size))
#define CONTEXT_SIZE(t) (sizeof(char)  * valInt(t->size))

static status
initialiseSyntaxTable(SyntaxTable t, Name name, SyntaxTable def)
{ unsigned short *flags;
  unsigned char *context;

  if ( isDefault(name) )
    name = NIL;

  if ( notDefault(def) )
  { flags = def->table;
    context = def->context;
    assign(t, sentence_end, def->paragraph_end);
    assign(t, paragraph_end, def->paragraph_end);
    assign(t, language, def->language);
    if ( isNil(def->keywords) )
      assign(t, keywords, NIL);
    else
      assign(t, keywords, getCopyVector(def->keywords));
    assign(t, keyword_case_sensitive, def->keyword_case_sensitive);
  } else
  { flags = char_flags;
    context = char_context;
    assign(t, sentence_end,
	   newObject(ClassRegex, CtoName("[.?!]\\s"), EAV));
    assign(t, paragraph_end,
	   newObject(ClassRegex, CtoName("\\s*\n"), EAV));
    assign(t, language, NIL);
    assign(t, keyword_case_sensitive, ON);
  }

  assign(t, name, name);
  assign(t, size, toInt(256));

  t->table   = alloc(FLAGS_SIZE(t));
  t->context = alloc(CONTEXT_SIZE(t));
  memcpy(t->table,   flags,   FLAGS_SIZE(t));
  memcpy(t->context, context, CONTEXT_SIZE(t));

  if ( notNil(name) )
    appendHashTable(SyntaxTables, name, t);

  succeed;
}


#ifndef WORDS_BIGENDIAN
static void
swapBytesTable(SyntaxTable t)
{
#define swapchr(x, y)	{ unsigned char z; z=x; x=y; y=z; }
  { unsigned char *s;
    size_t i = FLAGS_SIZE(t);

    for(s = (unsigned char *)t->table; i > 0; s += 2, i-= 2)
    { swapchr(s[0], s[1]);
    }
  }
}
#else /*WORDS_BIGENDIAN*/
#define swapBytesTable(t)
#endif /*WORDS_BIGENDIAN*/


static status
storeSyntaxTable(SyntaxTable t, FileObj file)
{ TRY(storeSlotsObject(t, file));
  swapBytesTable(t);
  Sfwrite(t->table,   sizeof(char), FLAGS_SIZE(t), file->fd);
  swapBytesTable(t);
  Sfwrite(t->context, sizeof(char), CONTEXT_SIZE(t), file->fd);

  succeed;
}


static status
loadSyntaxTable(SyntaxTable t, IOSTREAM *fd, ClassDef def)
{ TRY(loadSlotsObject(t, fd, def));

  t->table   = alloc(FLAGS_SIZE(t));
  t->context = alloc(CONTEXT_SIZE(t));
  Sfread(t->table,   sizeof(char), FLAGS_SIZE(t), fd);
  Sfread(t->context, sizeof(char), CONTEXT_SIZE(t), fd);

  swapBytesTable(t);

  succeed;
}


static SyntaxTable
getLookupSyntaxTable(Any ctx, Name name)
{ answer(getMemberHashTable(SyntaxTables, name));
}


static SyntaxTable
getConvertSyntaxTable(Any ctx, Name name)
{ SyntaxTable t;

  if ( (t = getLookupSyntaxTable(ctx, name)) )
    answer(t);

  answer(answerObject(ClassSyntaxTable, name, EAV));
}


static status
unlinkSyntaxTable(SyntaxTable t)
{ if ( t->table )
  { unalloc(FLAGS_SIZE(t), t->table);
    t->table = NULL;
  }
  if ( t->context )
  { unalloc(CONTEXT_SIZE(t), t->context);
    t->context = NULL;
  }

  if ( notNil(t->name) )
    deleteHashTable(SyntaxTables, t->name);

  succeed;
}


static status
copySyntaxTable(SyntaxTable t1, SyntaxTable t2)
{ unlinkSyntaxTable(t1);

  assign(t1, size, t2->size);

  t1->table   = alloc(FLAGS_SIZE(t1));
  t1->context = alloc(CONTEXT_SIZE(t1));
  memcpy(t1->table,   t2->table,   FLAGS_SIZE(t1));
  memcpy(t1->context, t2->context, CONTEXT_SIZE(t1));

  succeed;
}


static unsigned short
nameToCode(Name name)
{ if (      name == NAME_uppercaseLetter ) return UC;
  else if ( name == NAME_lowercaseLetter ) return LC;
  else if ( name == NAME_digit )           return DI;
  else if ( name == NAME_wordSeparator )   return WS;
  else if ( name == NAME_symbol )          return SY;
  else if ( name == NAME_openBracket )     return OB;
  else if ( name == NAME_closeBracket )    return CB;
  else if ( name == NAME_endOfLine )       return EL;
  else if ( name == NAME_whiteSpace )      return BL;
  else if ( name == NAME_stringQuote )     return QT;
  else if ( name == NAME_punctuation )     return PU;
  else if ( name == NAME_endOfString )     return EB;
  else if ( name == NAME_commentStart )    return CS;
  else if ( name == NAME_commentEnd )      return CE;
  else if ( name == NAME_letter )          return (UC|LC);
  else if ( name == NAME_word )            return (UC|LC|DI|WS|SY);
  else if ( name == NAME_layout )	   return (EL|BL);
  else					   fail;
}


static status
syntaxSyntaxTable(SyntaxTable t, Int chr, Name kind, Int context)
{ t->table[valInt(chr)]   = nameToCode(kind);
  t->context[valInt(chr)] = isDefault(context) ? 0 : valInt(context);

  if ( notDefault(context) )
  { if ( kind == NAME_openBracket )
    { t->table[valInt(context)]   = CB;
      t->context[valInt(context)] = valInt(chr);
    } else if ( kind == NAME_closeBracket )
    { t->table[valInt(context)]   = OB;
      t->context[valInt(context)] = valInt(chr);
    } else if ( kind == NAME_commentStart )
    { t->table[valInt(context)]   = CS;
      t->context[valInt(chr)]     = 1;
      t->context[valInt(context)] = 2;
    } else if ( kind == NAME_commentEnd )
    { t->table[valInt(context)]   = CE;
      t->context[valInt(chr)]     = 4;
      t->context[valInt(context)] = 8;
    }
  }

  succeed;
}


static status
addSyntaxSyntaxTable(SyntaxTable t, Int chr, Name kind, Int context)
{ t->table[valInt(chr)]   |= nameToCode(kind);

  if ( notDefault(context) )
  { if ( kind == NAME_openBracket )
    { t->table[valInt(context)]   = CB;
      t->context[valInt(context)] = valInt(chr);
      t->context[valInt(chr)]     = valInt(context);
    } else if ( kind == NAME_closeBracket )
    { t->table[valInt(context)]   = OB;
      t->context[valInt(context)] = valInt(chr);
      t->context[valInt(chr)]     = valInt(context);
    } else if ( kind == NAME_commentStart )
    { t->table[valInt(context)]   |= CS;
      t->context[valInt(chr)]     |= 1;
      t->context[valInt(context)] |= 2;
    } else if ( kind == NAME_commentEnd )
    { t->table[valInt(context)]   |= CE;
      t->context[valInt(chr)]     |= 4;
      t->context[valInt(context)] |= 8;
    } else
      t->context[valInt(chr)]  |= valInt(context);
  }

  succeed;
}


static status
contextSyntaxTable(SyntaxTable t, Int chr, Int context)
{ t->context[valInt(chr)] = isDefault(context) ? 0 : valInt(context);

  succeed;
}


static Int
getContextSyntaxTable(SyntaxTable t, Int chr)
{ if ( t->context[valInt(chr)] )
    answer(toInt(t->context[valInt(chr)]));

  fail;
}


static Any
getSyntaxSyntaxTable(SyntaxTable t, Int chr)
{ Any argv[20];
  int argc = 0;
  int code = t->table[valInt(chr)];

  if ( code & UC )	argv[argc++] = NAME_uppercaseLetter;
  if ( code & LC )	argv[argc++] = NAME_lowercaseLetter;
  if ( code & DI )	argv[argc++] = NAME_digit;
  if ( code & WS )	argv[argc++] = NAME_wordSeparator;
  if ( code & SY )	argv[argc++] = NAME_symbol;
  if ( code & OB )	argv[argc++] = NAME_openBracket;
  if ( code & CB )	argv[argc++] = NAME_closeBracket;
  if ( code & EL )	argv[argc++] = NAME_endOfLine;
  if ( code & BL )	argv[argc++] = NAME_whiteSpace;
  if ( code & QT )	argv[argc++] = NAME_stringQuote;
  if ( code & PU )	argv[argc++] = NAME_punctuation;
  if ( code & EB )	argv[argc++] = NAME_endOfString;
  if ( code & CS )	argv[argc++] = NAME_commentStart;
  if ( code & CE )	argv[argc++] = NAME_commentEnd;

  switch(argc)
  { case 0:
      fail;
    case 1:
      answer(argv[0]);
    default:
      answer(answerObjectv(ClassChain, argc, argv));
  }
}


static status
hasSyntaxSyntaxTable(SyntaxTable t, Int chr, Name name)
{ if ( tischtype(t, valInt(chr), nameToCode(name)) )
    succeed;

  fail;
}


static Name
getCommentStartSyntax(SyntaxTable t, Int len)
{ if ( isDefault(len) || len == ONE )
  { int i;

    for(i=0; i<valInt(t->size); i++)
      if ( tiscommentstart(t, i) )
      { char buf[2];
	buf[0] = (char) i;
	buf[1] = EOS;
	answer(CtoName(buf));
      }
  } else
  { int i1, i2;

    for(i1=0; i1<valInt(t->size); i1++)
      if ( tiscommentstart1(t, i1) )
	 for(i2=0; i2<valInt(t->size); i2++)
	   if ( tiscommentstart2(t, i2) )
	   { char buf[3];
	     buf[0] = (char) i1;
	     buf[1] = (char) i2;
	     buf[2] = EOS;
	     answer(CtoName(buf));
	   }
  }

  fail;
}


static Name
getCommentEndSyntax(SyntaxTable t, Int len)
{ if ( isDefault(len) || len == ONE )
  { int i;

    for(i=0; i<valInt(t->size); i++)
      if ( tiscommentend(t, i) )
      { char buf[2];
	buf[0] = (char) i;
	buf[1] = EOS;
	answer(CtoName(buf));
      }
  } else
  { int i1, i2;

    for(i1=0; i1<valInt(t->size); i1++)
      if ( tiscommentend1(t, i1) )
	 for(i2=0; i2<valInt(t->size); i2++)
	   if ( tiscommentend2(t, i2) )
	   { char buf[3];
	     buf[0] = (char) i1;
	     buf[1] = (char) i2;
	     buf[2] = EOS;
	     answer(CtoName(buf));
	   }
  }

  fail;
}

static status
keywordsSyntaxTable(SyntaxTable t, Vector keywords)
{ if ( isNil(keywords) )
  { assign(t, keywords, keywords);
  } else
  { Vector v2 = getCopyVector(keywords);
    Code cmp = newObject(ClassObtain, Arg(1), NAME_compare, Arg(2), EAV);
    send(v2, NAME_sort, cmp, EAV);
    freeObject(cmp);
    assign(t, keywords, v2);
  }

  succeed;
}


status
makeClassSyntaxTable(Class class)
{ defineType("syntax_name",
	     "{uppercase_letter,lowercase_letter,digit,word_separator,"
	     "symbol,open_bracket,close_bracket,end_of_line,white_space,"
	     "string_quote,punctuation,end_of_string,"
	     "comment_start,comment_end,"
	     "letter,word,layout}");

  sourceClass(class, makeClassSyntaxTable, __FILE__, "$Revision$");

  localClass(class, NAME_name, NAME_name, "name*", NAME_get,
	     "Name of this syntax table");
  localClass(class, NAME_size, NAME_storage, "int", NAME_get,
	     "Size of the table");
  localClass(class, NAME_sentenceEnd, NAME_syntax, "regex", NAME_both,
	     "Regular expression for end of sentence");
  localClass(class, NAME_paragraphEnd, NAME_syntax, "regex", NAME_both,
	     "Regular expression for end of paragraph");
  localClass(class, NAME_quasiQuotationStart, NAME_syntax, "name*", NAME_both,
	     "Starts a quasi quotation");
  localClass(class, NAME_quasiQuotationEnd, NAME_syntax, "name*", NAME_both,
	     "Ends a quasi quotation");
  localClass(class, NAME_language, NAME_syntax, "name*", NAME_both,
	     "Enable language tweaks");
  localClass(class, NAME_lineComment, NAME_syntax, "name*", NAME_both,
	     "Possible multi-character line comment start");
  localClass(class, NAME_keywords, NAME_syntax, "vector*", NAME_get,
	     "Ordered set of keywords");
  localClass(class, NAME_keywordCaseSensitive, NAME_syntax, "bool", NAME_both,
	     "Whether or not to match keywords case sensitive");
  localClass(class, NAME_table, NAME_storage, "alien:ushort *", NAME_none,
	     "Type-flags");
  localClass(class, NAME_context, NAME_storage, "alien:char *", NAME_none,
	     "Context information");

  termClass(class, "syntax_table", 1, NAME_name);
  setLoadStoreFunctionClass(class, loadSyntaxTable, storeSyntaxTable);
  saveStyleClass(class, NAME_external);
  cloneStyleClass(class, NAME_none);

  sendMethod(class, NAME_initialise, DEFAULT, 2,
	     "name=[name]*", "prototype=[syntax_table]",
	     "Create name and default table",
	     initialiseSyntaxTable);
  sendMethod(class, NAME_unlink, DEFAULT, 0,
	     "Free alien tables",
	     unlinkSyntaxTable);
  sendMethod(class, NAME_copy, NAME_copy, 1, "syntax_table",
	     "Copy contents of argument table",
	     copySyntaxTable);
  sendMethod(class, NAME_syntax, NAME_syntax, 3,
	     "character=char", "category=syntax_name", "context=[char]",
	     "Modify syntax entry for char",
	     syntaxSyntaxTable);
  sendMethod(class, NAME_addSyntax, NAME_syntax, 3,
	     "character=char", "category=syntax_name", "context=[char]",
	     "Add syntax-type for char",
	     addSyntaxSyntaxTable);
  sendMethod(class, NAME_hasSyntax, NAME_test, 2,
	     "character=char", "category=syntax_name",
	     "Test if char has syntax",
	     hasSyntaxSyntaxTable);
  sendMethod(class, NAME_context, NAME_syntax, 2,
	     "character=char", "context=char",
	     "Set context for character",
	     contextSyntaxTable);
  sendMethod(class, NAME_keywords, NAME_syntax, 1, "vector*",
	     "Set set of keywords",
	     keywordsSyntaxTable);

  getMethod(class, NAME_context, NAME_syntax, "context=char", 1,
	    "character=char",
	    "Context character for char",
	    getContextSyntaxTable);
  getMethod(class, NAME_syntax, NAME_syntax, "category=name|chain", 1,
	    "character=char",
	    "Syntax for given character",
	    getSyntaxSyntaxTable);
  getMethod(class, NAME_lookup, NAME_oms, "syntax_table", 1, "name",
	    "Lookup in @syntax_tables",
	    getLookupSyntaxTable);
  getMethod(class, NAME_convert, NAME_conversion, "syntax_table", 1, "name",
	    "Convert table-name into table",
	    getConvertSyntaxTable);
  getMethod(class, NAME_commentStart, NAME_syntax, "name", 1, "[1..2]",
	    "Name holding 1- or 2 character comment-start sequence",
	    getCommentStartSyntax);
  getMethod(class, NAME_commentEnd, NAME_syntax, "name", 1, "[1..2]",
	    "Name holding 1- or 2 character comment-end sequence",
	    getCommentEndSyntax);

  SyntaxTables = globalObject(NAME_syntaxTables, ClassHashTable, EAV);
  DefaultSyntaxTable = globalObject(NAME_defaultSyntaxTable, class,
				    NAME_default, EAV);

  succeed;
}

		/********************************
		*            TABLES		*
		********************************/


unsigned short syntax_spec_code[] = {	/* regex support */
/* ^@  ^A  ^B  ^C  ^D  ^E  ^F  ^G  ^H  ^I  ^J  ^K  ^L  ^M  ^N  ^O    0-15 */
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
/* ^P  ^Q  ^R  ^S  ^T  ^U  ^V  ^W  ^X  ^Y  ^Z  ^[  ^\  ^]  ^^  ^_   16-31 */
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
/* sp   !   "   #   $   %   &   '   (   )   *   +   ,   -   .   /   32-47 */
BL|EL,  0, QT,  0,  0,  0,  0,  0, OB, CB,  0,  0,  0, SY, PU,  0,
/*  0   1   2   3   4   5   6   7   8   9   :   ;   <   =   >   ?   48-63 */
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, CS,  0, CE,  0,
/*  @   A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   64-79 */
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
/*  P   Q   R   S   T   U   V   W   X   Y   Z   [   \   ]   ^   _   80-95 */
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0, WS,
/*  `   a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   96-111 */
    0,  0,  0,  0, DI,  0,  0,  0,  0,  0,  0,  0, LC,  0, EL,  0,
/*  p   q   r   s   t   u   v   w   x   y   z   {   |   }   ~  ^?   112-127 */
    0,  0,  0,  0,  0, UC,  0, AN,  0,  0,  0,  0,  0,  0,  0,  0,
			  /* 128-255 */
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 };

#undef XL
#undef xl
#define XL (UC|XD)
#define xl (LC|XD)

unsigned short char_flags[] = {
/* ^@  ^A  ^B  ^C  ^D  ^E  ^F  ^G  ^H  ^I  ^J  ^K  ^L  ^M  ^N  ^O    0-15 */
   EB, CT, CT, CT, CT, CT, CT, CT, CT, BL, EL, CT, BL, BL, CT, CT,
/* ^P  ^Q  ^R  ^S  ^T  ^U  ^V  ^W  ^X  ^Y  ^Z  ^[  ^\  ^]  ^^  ^_   16-31 */
   CT, CT, CT, CT, CT, CT, CT, CT, CT, CT, CT, CT, CT, CT, CT, CT,
/* sp   !   "   #   $   %   &   '   (   )   *   +   ,   -   .   /   32-47 */
   BL, PU, QT, PU, PU, PU, PU, QT, OB, CB, PU, PU, PU, PU, PU, PU,
/*  0   1   2   3   4   5   6   7   8   9   :   ;   <   =   >   ?   48-63 */
   DI, DI, DI, DI, DI, DI, DI, DI, DI, DI, PU, PU, PU, PU, PU, PU,
/*  @   A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   64-79 */
   PU, XL, XL, XL, XL, XL, XL, UC, UC, UC, UC, UC, UC, UC, UC, UC,
/*  P   Q   R   S   T   U   V   W   X   Y   Z   [   \   ]   ^   _   80-95 */
   UC, UC, UC, UC, UC, UC, UC, UC, UC, UC, UC, OB, PU, CB, PU, WS,
/*  `   a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   96-111 */
   QT, xl, xl, xl, xl, xl, xl, LC, LC, LC, LC, LC, LC, LC, LC, LC,
/*  p   q   r   s   t   u   v   w   x   y   z   {   |   }   ~  ^?   112-127 */
   LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, OB, PU, CB, PU, CT,
			  /* 128-255 */
   LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC,
   LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC,
   LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC,
   LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC,
   LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC,
   LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC,
   LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC,
   LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC, LC };

unsigned char char_context[] = {
/* ^@  ^A  ^B  ^C  ^D  ^E  ^F  ^G  ^H  ^I  ^J  ^K  ^L  ^M  ^N  ^O    0-15 */
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
/* ^P  ^Q  ^R  ^S  ^T  ^U  ^V  ^W  ^X  ^Y  ^Z  ^[  ^\  ^]  ^^  ^_   16-31 */
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
/* sp   !   "   #   $   %   &   '   (   )   *   +   ,   -   .   /   32-47 */
    0,  0,  0,  0,  0,  0,  0,  0,')','(',  0,  0,  0,  0,  0,  0,
/*  0   1   2   3   4   5   6   7   8   9   :   ;   <   =   >   ?   48-63 */
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
/*  @   A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   64-79 */
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
/*  P   Q   R   S   T   U   V   W   X   Y   Z   [   \   ]   ^   _   80-95 */
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,']',  0,'[',  0,  0,
/*  `   a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   96-111 */
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
/*  p   q   r   s   t   u   v   w   x   y   z   {   |   }   ~  ^?   112-127 */
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,'}',  0,'{',  0,  0,
			  /* 128-255 */
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,
    0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0,  0 };
