misc/libfreetype/src/bdf/bdflib.c
changeset 5172 88f2e05288ba
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/misc/libfreetype/src/bdf/bdflib.c	Mon Apr 25 01:46:54 2011 +0200
@@ -0,0 +1,2542 @@
+/*
+ * Copyright 2000 Computing Research Labs, New Mexico State University
+ * Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010
+ *   Francesco Zappa Nardelli
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COMPUTING RESEARCH LAB OR NEW MEXICO STATE UNIVERSITY BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
+ * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+  /*************************************************************************/
+  /*                                                                       */
+  /*  This file is based on bdf.c,v 1.22 2000/03/16 20:08:50               */
+  /*                                                                       */
+  /*  taken from Mark Leisher's xmbdfed package                            */
+  /*                                                                       */
+  /*************************************************************************/
+
+
+#include <ft2build.h>
+
+#include FT_FREETYPE_H
+#include FT_INTERNAL_DEBUG_H
+#include FT_INTERNAL_STREAM_H
+#include FT_INTERNAL_OBJECTS_H
+
+#include "bdf.h"
+#include "bdferror.h"
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* The macro FT_COMPONENT is used in trace mode.  It is an implicit      */
+  /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log  */
+  /* messages during execution.                                            */
+  /*                                                                       */
+#undef  FT_COMPONENT
+#define FT_COMPONENT  trace_bdflib
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* Default BDF font options.                                             */
+  /*                                                                       */
+  /*************************************************************************/
+
+
+  static const bdf_options_t  _bdf_opts =
+  {
+    1,                /* Correct metrics.               */
+    1,                /* Preserve unencoded glyphs.     */
+    0,                /* Preserve comments.             */
+    BDF_PROPORTIONAL  /* Default spacing.               */
+  };
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* Builtin BDF font properties.                                          */
+  /*                                                                       */
+  /*************************************************************************/
+
+  /* List of most properties that might appear in a font.  Doesn't include */
+  /* the RAW_* and AXIS_* properties in X11R6 polymorphic fonts.           */
+
+  static const bdf_property_t  _bdf_properties[] =
+  {
+    { (char *)"ADD_STYLE_NAME",          BDF_ATOM,     1, { 0 } },
+    { (char *)"AVERAGE_WIDTH",           BDF_INTEGER,  1, { 0 } },
+    { (char *)"AVG_CAPITAL_WIDTH",       BDF_INTEGER,  1, { 0 } },
+    { (char *)"AVG_LOWERCASE_WIDTH",     BDF_INTEGER,  1, { 0 } },
+    { (char *)"CAP_HEIGHT",              BDF_INTEGER,  1, { 0 } },
+    { (char *)"CHARSET_COLLECTIONS",     BDF_ATOM,     1, { 0 } },
+    { (char *)"CHARSET_ENCODING",        BDF_ATOM,     1, { 0 } },
+    { (char *)"CHARSET_REGISTRY",        BDF_ATOM,     1, { 0 } },
+    { (char *)"COMMENT",                 BDF_ATOM,     1, { 0 } },
+    { (char *)"COPYRIGHT",               BDF_ATOM,     1, { 0 } },
+    { (char *)"DEFAULT_CHAR",            BDF_CARDINAL, 1, { 0 } },
+    { (char *)"DESTINATION",             BDF_CARDINAL, 1, { 0 } },
+    { (char *)"DEVICE_FONT_NAME",        BDF_ATOM,     1, { 0 } },
+    { (char *)"END_SPACE",               BDF_INTEGER,  1, { 0 } },
+    { (char *)"FACE_NAME",               BDF_ATOM,     1, { 0 } },
+    { (char *)"FAMILY_NAME",             BDF_ATOM,     1, { 0 } },
+    { (char *)"FIGURE_WIDTH",            BDF_INTEGER,  1, { 0 } },
+    { (char *)"FONT",                    BDF_ATOM,     1, { 0 } },
+    { (char *)"FONTNAME_REGISTRY",       BDF_ATOM,     1, { 0 } },
+    { (char *)"FONT_ASCENT",             BDF_INTEGER,  1, { 0 } },
+    { (char *)"FONT_DESCENT",            BDF_INTEGER,  1, { 0 } },
+    { (char *)"FOUNDRY",                 BDF_ATOM,     1, { 0 } },
+    { (char *)"FULL_NAME",               BDF_ATOM,     1, { 0 } },
+    { (char *)"ITALIC_ANGLE",            BDF_INTEGER,  1, { 0 } },
+    { (char *)"MAX_SPACE",               BDF_INTEGER,  1, { 0 } },
+    { (char *)"MIN_SPACE",               BDF_INTEGER,  1, { 0 } },
+    { (char *)"NORM_SPACE",              BDF_INTEGER,  1, { 0 } },
+    { (char *)"NOTICE",                  BDF_ATOM,     1, { 0 } },
+    { (char *)"PIXEL_SIZE",              BDF_INTEGER,  1, { 0 } },
+    { (char *)"POINT_SIZE",              BDF_INTEGER,  1, { 0 } },
+    { (char *)"QUAD_WIDTH",              BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_ASCENT",              BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_AVERAGE_WIDTH",       BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_AVG_CAPITAL_WIDTH",   BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_AVG_LOWERCASE_WIDTH", BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_CAP_HEIGHT",          BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_DESCENT",             BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_END_SPACE",           BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_FIGURE_WIDTH",        BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_MAX_SPACE",           BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_MIN_SPACE",           BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_NORM_SPACE",          BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_PIXEL_SIZE",          BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_POINT_SIZE",          BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_PIXELSIZE",           BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_POINTSIZE",           BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_QUAD_WIDTH",          BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_SMALL_CAP_SIZE",      BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_STRIKEOUT_ASCENT",    BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_STRIKEOUT_DESCENT",   BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_SUBSCRIPT_SIZE",      BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_SUBSCRIPT_X",         BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_SUBSCRIPT_Y",         BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_SUPERSCRIPT_SIZE",    BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_SUPERSCRIPT_X",       BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_SUPERSCRIPT_Y",       BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_UNDERLINE_POSITION",  BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_UNDERLINE_THICKNESS", BDF_INTEGER,  1, { 0 } },
+    { (char *)"RAW_X_HEIGHT",            BDF_INTEGER,  1, { 0 } },
+    { (char *)"RELATIVE_SETWIDTH",       BDF_CARDINAL, 1, { 0 } },
+    { (char *)"RELATIVE_WEIGHT",         BDF_CARDINAL, 1, { 0 } },
+    { (char *)"RESOLUTION",              BDF_INTEGER,  1, { 0 } },
+    { (char *)"RESOLUTION_X",            BDF_CARDINAL, 1, { 0 } },
+    { (char *)"RESOLUTION_Y",            BDF_CARDINAL, 1, { 0 } },
+    { (char *)"SETWIDTH_NAME",           BDF_ATOM,     1, { 0 } },
+    { (char *)"SLANT",                   BDF_ATOM,     1, { 0 } },
+    { (char *)"SMALL_CAP_SIZE",          BDF_INTEGER,  1, { 0 } },
+    { (char *)"SPACING",                 BDF_ATOM,     1, { 0 } },
+    { (char *)"STRIKEOUT_ASCENT",        BDF_INTEGER,  1, { 0 } },
+    { (char *)"STRIKEOUT_DESCENT",       BDF_INTEGER,  1, { 0 } },
+    { (char *)"SUBSCRIPT_SIZE",          BDF_INTEGER,  1, { 0 } },
+    { (char *)"SUBSCRIPT_X",             BDF_INTEGER,  1, { 0 } },
+    { (char *)"SUBSCRIPT_Y",             BDF_INTEGER,  1, { 0 } },
+    { (char *)"SUPERSCRIPT_SIZE",        BDF_INTEGER,  1, { 0 } },
+    { (char *)"SUPERSCRIPT_X",           BDF_INTEGER,  1, { 0 } },
+    { (char *)"SUPERSCRIPT_Y",           BDF_INTEGER,  1, { 0 } },
+    { (char *)"UNDERLINE_POSITION",      BDF_INTEGER,  1, { 0 } },
+    { (char *)"UNDERLINE_THICKNESS",     BDF_INTEGER,  1, { 0 } },
+    { (char *)"WEIGHT",                  BDF_CARDINAL, 1, { 0 } },
+    { (char *)"WEIGHT_NAME",             BDF_ATOM,     1, { 0 } },
+    { (char *)"X_HEIGHT",                BDF_INTEGER,  1, { 0 } },
+    { (char *)"_MULE_BASELINE_OFFSET",   BDF_INTEGER,  1, { 0 } },
+    { (char *)"_MULE_RELATIVE_COMPOSE",  BDF_INTEGER,  1, { 0 } },
+  };
+
+  static const unsigned long
+  _num_bdf_properties = sizeof ( _bdf_properties ) /
+                        sizeof ( _bdf_properties[0] );
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* Hash table utilities for the properties.                              */
+  /*                                                                       */
+  /*************************************************************************/
+
+  /* XXX: Replace this with FreeType's hash functions */
+
+
+#define INITIAL_HT_SIZE  241
+
+  typedef void
+  (*hash_free_func)( hashnode  node );
+
+  static hashnode*
+  hash_bucket( const char*  key,
+               hashtable*   ht )
+  {
+    const char*    kp  = key;
+    unsigned long  res = 0;
+    hashnode*      bp  = ht->table, *ndp;
+
+
+    /* Mocklisp hash function. */
+    while ( *kp )
+      res = ( res << 5 ) - res + *kp++;
+
+    ndp = bp + ( res % ht->size );
+    while ( *ndp )
+    {
+      kp = (*ndp)->key;
+      if ( kp[0] == key[0] && ft_strcmp( kp, key ) == 0 )
+        break;
+      ndp--;
+      if ( ndp < bp )
+        ndp = bp + ( ht->size - 1 );
+    }
+
+    return ndp;
+  }
+
+
+  static FT_Error
+  hash_rehash( hashtable*  ht,
+               FT_Memory   memory )
+  {
+    hashnode*  obp = ht->table, *bp, *nbp;
+    int        i, sz = ht->size;
+    FT_Error   error = BDF_Err_Ok;
+
+
+    ht->size <<= 1;
+    ht->limit  = ht->size / 3;
+
+    if ( FT_NEW_ARRAY( ht->table, ht->size ) )
+      goto Exit;
+
+    for ( i = 0, bp = obp; i < sz; i++, bp++ )
+    {
+      if ( *bp )
+      {
+        nbp = hash_bucket( (*bp)->key, ht );
+        *nbp = *bp;
+      }
+    }
+    FT_FREE( obp );
+
+  Exit:
+    return error;
+  }
+
+
+  static FT_Error
+  hash_init( hashtable*  ht,
+             FT_Memory   memory )
+  {
+    int       sz = INITIAL_HT_SIZE;
+    FT_Error  error = BDF_Err_Ok;
+
+
+    ht->size  = sz;
+    ht->limit = sz / 3;
+    ht->used  = 0;
+
+    if ( FT_NEW_ARRAY( ht->table, sz ) )
+      goto Exit;
+
+  Exit:
+    return error;
+  }
+
+
+  static void
+  hash_free( hashtable*  ht,
+             FT_Memory   memory )
+  {
+    if ( ht != 0 )
+    {
+      int        i, sz = ht->size;
+      hashnode*  bp = ht->table;
+
+
+      for ( i = 0; i < sz; i++, bp++ )
+        FT_FREE( *bp );
+
+      FT_FREE( ht->table );
+    }
+  }
+
+
+  static FT_Error
+  hash_insert( char*       key,
+               size_t      data,
+               hashtable*  ht,
+               FT_Memory   memory )
+  {
+    hashnode  nn, *bp = hash_bucket( key, ht );
+    FT_Error  error = BDF_Err_Ok;
+
+
+    nn = *bp;
+    if ( !nn )
+    {
+      if ( FT_NEW( nn ) )
+        goto Exit;
+      *bp = nn;
+
+      nn->key  = key;
+      nn->data = data;
+
+      if ( ht->used >= ht->limit )
+      {
+        error = hash_rehash( ht, memory );
+        if ( error )
+          goto Exit;
+      }
+      ht->used++;
+    }
+    else
+      nn->data = data;
+
+  Exit:
+    return error;
+  }
+
+
+  static hashnode
+  hash_lookup( const char* key,
+               hashtable*  ht )
+  {
+    hashnode *np = hash_bucket( key, ht );
+
+
+    return *np;
+  }
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* Utility types and functions.                                          */
+  /*                                                                       */
+  /*************************************************************************/
+
+
+  /* Function type for parsing lines of a BDF font. */
+
+  typedef FT_Error
+  (*_bdf_line_func_t)( char*          line,
+                       unsigned long  linelen,
+                       unsigned long  lineno,
+                       void*          call_data,
+                       void*          client_data );
+
+
+  /* List structure for splitting lines into fields. */
+
+  typedef struct  _bdf_list_t_
+  {
+    char**         field;
+    unsigned long  size;
+    unsigned long  used;
+    FT_Memory      memory;
+
+  } _bdf_list_t;
+
+
+  /* Structure used while loading BDF fonts. */
+
+  typedef struct  _bdf_parse_t_
+  {
+    unsigned long   flags;
+    unsigned long   cnt;
+    unsigned long   row;
+
+    short           minlb;
+    short           maxlb;
+    short           maxrb;
+    short           maxas;
+    short           maxds;
+
+    short           rbearing;
+
+    char*           glyph_name;
+    long            glyph_enc;
+
+    bdf_font_t*     font;
+    bdf_options_t*  opts;
+
+    unsigned long   have[2048];
+    _bdf_list_t     list;
+
+    FT_Memory       memory;
+
+  } _bdf_parse_t;
+
+
+#define setsbit( m, cc ) \
+          ( m[(FT_Byte)(cc) >> 3] |= (FT_Byte)( 1 << ( (cc) & 7 ) ) )
+#define sbitset( m, cc ) \
+          ( m[(FT_Byte)(cc) >> 3]  & ( 1 << ( (cc) & 7 ) ) )
+
+
+  static void
+  _bdf_list_init( _bdf_list_t*  list,
+                  FT_Memory     memory )
+  {
+    FT_ZERO( list );
+    list->memory = memory;
+  }
+
+
+  static void
+  _bdf_list_done( _bdf_list_t*  list )
+  {
+    FT_Memory  memory = list->memory;
+
+
+    if ( memory )
+    {
+      FT_FREE( list->field );
+      FT_ZERO( list );
+    }
+  }
+
+
+  static FT_Error
+  _bdf_list_ensure( _bdf_list_t*   list,
+                    unsigned long  num_items ) /* same as _bdf_list_t.used */
+  {
+    FT_Error  error = BDF_Err_Ok;
+
+
+    if ( num_items > list->size )
+    {
+      unsigned long  oldsize = list->size; /* same as _bdf_list_t.size */
+      unsigned long  newsize = oldsize + ( oldsize >> 1 ) + 4;
+      unsigned long  bigsize = (unsigned long)( FT_INT_MAX / sizeof ( char* ) );
+      FT_Memory      memory  = list->memory;
+
+
+      if ( oldsize == bigsize )
+      {
+        error = BDF_Err_Out_Of_Memory;
+        goto Exit;
+      }
+      else if ( newsize < oldsize || newsize > bigsize )
+        newsize = bigsize;
+
+      if ( FT_RENEW_ARRAY( list->field, oldsize, newsize ) )
+        goto Exit;
+
+      list->size = newsize;
+    }
+
+  Exit:
+    return error;
+  }
+
+
+  static void
+  _bdf_list_shift( _bdf_list_t*   list,
+                   unsigned long  n )
+  {
+    unsigned long  i, u;
+
+
+    if ( list == 0 || list->used == 0 || n == 0 )
+      return;
+
+    if ( n >= list->used )
+    {
+      list->used = 0;
+      return;
+    }
+
+    for ( u = n, i = 0; u < list->used; i++, u++ )
+      list->field[i] = list->field[u];
+    list->used -= n;
+  }
+
+
+  /* An empty string for empty fields. */
+
+  static const char  empty[1] = { 0 };      /* XXX eliminate this */
+
+
+  static char *
+  _bdf_list_join( _bdf_list_t*    list,
+                  int             c,
+                  unsigned long  *alen )
+  {
+    unsigned long  i, j;
+    char           *fp, *dp;
+
+
+    *alen = 0;
+
+    if ( list == 0 || list->used == 0 )
+      return 0;
+
+    dp = list->field[0];
+    for ( i = j = 0; i < list->used; i++ )
+    {
+      fp = list->field[i];
+      while ( *fp )
+        dp[j++] = *fp++;
+
+      if ( i + 1 < list->used )
+        dp[j++] = (char)c;
+    }
+    if ( dp != empty )
+      dp[j] = 0;
+
+    *alen = j;
+    return dp;
+  }
+
+
+  static FT_Error
+  _bdf_list_split( _bdf_list_t*   list,
+                   char*          separators,
+                   char*          line,
+                   unsigned long  linelen )
+  {
+    int       mult, final_empty;
+    char      *sp, *ep, *end;
+    char      seps[32];
+    FT_Error  error = BDF_Err_Ok;
+
+
+    /* Initialize the list. */
+    list->used = 0;
+
+    /* If the line is empty, then simply return. */
+    if ( linelen == 0 || line[0] == 0 )
+      goto Exit;
+
+    /* In the original code, if the `separators' parameter is NULL or */
+    /* empty, the list is split into individual bytes.  We don't need */
+    /* this, so an error is signaled.                                 */
+    if ( separators == 0 || *separators == 0 )
+    {
+      error = BDF_Err_Invalid_Argument;
+      goto Exit;
+    }
+
+    /* Prepare the separator bitmap. */
+    FT_MEM_ZERO( seps, 32 );
+
+    /* If the very last character of the separator string is a plus, then */
+    /* set the `mult' flag to indicate that multiple separators should be */
+    /* collapsed into one.                                                */
+    for ( mult = 0, sp = separators; sp && *sp; sp++ )
+    {
+      if ( *sp == '+' && *( sp + 1 ) == 0 )
+        mult = 1;
+      else
+        setsbit( seps, *sp );
+    }
+
+    /* Break the line up into fields. */
+    for ( final_empty = 0, sp = ep = line, end = sp + linelen;
+          sp < end && *sp; )
+    {
+      /* Collect everything that is not a separator. */
+      for ( ; *ep && !sbitset( seps, *ep ); ep++ )
+        ;
+
+      /* Resize the list if necessary. */
+      if ( list->used == list->size )
+      {
+        error = _bdf_list_ensure( list, list->used + 1 );
+        if ( error )
+          goto Exit;
+      }
+
+      /* Assign the field appropriately. */
+      list->field[list->used++] = ( ep > sp ) ? sp : (char*)empty;
+
+      sp = ep;
+
+      if ( mult )
+      {
+        /* If multiple separators should be collapsed, do it now by */
+        /* setting all the separator characters to 0.               */
+        for ( ; *ep && sbitset( seps, *ep ); ep++ )
+          *ep = 0;
+      }
+      else if ( *ep != 0 )
+        /* Don't collapse multiple separators by making them 0, so just */
+        /* make the one encountered 0.                                  */
+        *ep++ = 0;
+
+      final_empty = ( ep > sp && *ep == 0 );
+      sp = ep;
+    }
+
+    /* Finally, NULL-terminate the list. */
+    if ( list->used + final_empty >= list->size )
+    {
+      error = _bdf_list_ensure( list, list->used + final_empty + 1 );
+      if ( error )
+        goto Exit;
+    }
+
+    if ( final_empty )
+      list->field[list->used++] = (char*)empty;
+
+    list->field[list->used] = 0;
+
+  Exit:
+    return error;
+  }
+
+
+#define NO_SKIP  256  /* this value cannot be stored in a 'char' */
+
+
+  static FT_Error
+  _bdf_readstream( FT_Stream         stream,
+                   _bdf_line_func_t  callback,
+                   void*             client_data,
+                   unsigned long    *lno )
+  {
+    _bdf_line_func_t  cb;
+    unsigned long     lineno, buf_size;
+    int               refill, hold, to_skip;
+    ptrdiff_t         bytes, start, end, cursor, avail;
+    char*             buf = 0;
+    FT_Memory         memory = stream->memory;
+    FT_Error          error = BDF_Err_Ok;
+
+
+    if ( callback == 0 )
+    {
+      error = BDF_Err_Invalid_Argument;
+      goto Exit;
+    }
+
+    /* initial size and allocation of the input buffer */
+    buf_size = 1024;
+
+    if ( FT_NEW_ARRAY( buf, buf_size ) )
+      goto Exit;
+
+    cb      = callback;
+    lineno  = 1;
+    buf[0]  = 0;
+    start   = 0;
+    end     = 0;
+    avail   = 0;
+    cursor  = 0;
+    refill  = 1;
+    to_skip = NO_SKIP;
+    bytes   = 0;        /* make compiler happy */
+
+    for (;;)
+    {
+      if ( refill )
+      {
+        bytes  = (ptrdiff_t)FT_Stream_TryRead(
+                   stream, (FT_Byte*)buf + cursor,
+                   (FT_ULong)( buf_size - cursor ) );
+        avail  = cursor + bytes;
+        cursor = 0;
+        refill = 0;
+      }
+
+      end = start;
+
+      /* should we skip an optional character like \n or \r? */
+      if ( start < avail && buf[start] == to_skip )
+      {
+        start  += 1;
+        to_skip = NO_SKIP;
+        continue;
+      }
+
+      /* try to find the end of the line */
+      while ( end < avail && buf[end] != '\n' && buf[end] != '\r' )
+        end++;
+
+      /* if we hit the end of the buffer, try shifting its content */
+      /* or even resizing it                                       */
+      if ( end >= avail )
+      {
+        if ( bytes == 0 )  /* last line in file doesn't end in \r or \n */
+          break;           /* ignore it then exit                       */
+
+        if ( start == 0 )
+        {
+          /* this line is definitely too long; try resizing the input */
+          /* buffer a bit to handle it.                               */
+          FT_ULong  new_size;
+
+
+          if ( buf_size >= 65536UL )  /* limit ourselves to 64KByte */
+          {
+            error = BDF_Err_Invalid_Argument;
+            goto Exit;
+          }
+
+          new_size = buf_size * 2;
+          if ( FT_RENEW_ARRAY( buf, buf_size, new_size ) )
+            goto Exit;
+
+          cursor   = buf_size;
+          buf_size = new_size;
+        }
+        else
+        {
+          bytes = avail - start;
+
+          FT_MEM_COPY( buf, buf + start, bytes );
+
+          cursor = bytes;
+          avail -= bytes;
+          start  = 0;
+        }
+        refill = 1;
+        continue;
+      }
+
+      /* Temporarily NUL-terminate the line. */
+      hold     = buf[end];
+      buf[end] = 0;
+
+      /* XXX: Use encoding independent value for 0x1a */
+      if ( buf[start] != '#' && buf[start] != 0x1a && end > start )
+      {
+        error = (*cb)( buf + start, end - start, lineno,
+                       (void*)&cb, client_data );
+        /* Redo if we have encountered CHARS without properties. */
+        if ( error == -1 )
+          error = (*cb)( buf + start, end - start, lineno,
+                         (void*)&cb, client_data );
+        if ( error )
+          break;
+      }
+
+      lineno  += 1;
+      buf[end] = (char)hold;
+      start    = end + 1;
+
+      if ( hold == '\n' )
+        to_skip = '\r';
+      else if ( hold == '\r' )
+        to_skip = '\n';
+      else
+        to_skip = NO_SKIP;
+    }
+
+    *lno = lineno;
+
+  Exit:
+    FT_FREE( buf );
+    return error;
+  }
+
+
+  /* XXX: make this work with EBCDIC also */
+
+  static const unsigned char  a2i[128] =
+  {
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+  };
+
+  static const unsigned char  odigits[32] =
+  {
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  };
+
+  static const unsigned char  ddigits[32] =
+  {
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x03,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  };
+
+  static const unsigned char  hdigits[32] =
+  {
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x03,
+    0x7e, 0x00, 0x00, 0x00, 0x7e, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+  };
+
+
+#define isdigok( m, d )  (m[(d) >> 3] & ( 1 << ( (d) & 7 ) ) )
+
+
+  /* Routine to convert an ASCII string into an unsigned long integer. */
+  static unsigned long
+  _bdf_atoul( char*   s,
+              char**  end,
+              int     base )
+  {
+    unsigned long         v;
+    const unsigned char*  dmap;
+
+
+    if ( s == 0 || *s == 0 )
+      return 0;
+
+    /* Make sure the radix is something recognizable.  Default to 10. */
+    switch ( base )
+    {
+    case 8:
+      dmap = odigits;
+      break;
+    case 16:
+      dmap = hdigits;
+      break;
+    default:
+      base = 10;
+      dmap = ddigits;
+      break;
+    }
+
+    /* Check for the special hex prefix. */
+    if ( *s == '0'                                  &&
+         ( *( s + 1 ) == 'x' || *( s + 1 ) == 'X' ) )
+    {
+      base = 16;
+      dmap = hdigits;
+      s   += 2;
+    }
+
+    for ( v = 0; isdigok( dmap, *s ); s++ )
+      v = v * base + a2i[(int)*s];
+
+    if ( end != 0 )
+      *end = s;
+
+    return v;
+  }
+
+
+  /* Routine to convert an ASCII string into an signed long integer. */
+  static long
+  _bdf_atol( char*   s,
+             char**  end,
+             int     base )
+  {
+    long                  v, neg;
+    const unsigned char*  dmap;
+
+
+    if ( s == 0 || *s == 0 )
+      return 0;
+
+    /* Make sure the radix is something recognizable.  Default to 10. */
+    switch ( base )
+    {
+    case 8:
+      dmap = odigits;
+      break;
+    case 16:
+      dmap = hdigits;
+      break;
+    default:
+      base = 10;
+      dmap = ddigits;
+      break;
+    }
+
+    /* Check for a minus sign. */
+    neg = 0;
+    if ( *s == '-' )
+    {
+      s++;
+      neg = 1;
+    }
+
+    /* Check for the special hex prefix. */
+    if ( *s == '0'                                  &&
+         ( *( s + 1 ) == 'x' || *( s + 1 ) == 'X' ) )
+    {
+      base = 16;
+      dmap = hdigits;
+      s   += 2;
+    }
+
+    for ( v = 0; isdigok( dmap, *s ); s++ )
+      v = v * base + a2i[(int)*s];
+
+    if ( end != 0 )
+      *end = s;
+
+    return ( !neg ) ? v : -v;
+  }
+
+
+  /* Routine to convert an ASCII string into an signed short integer. */
+  static short
+  _bdf_atos( char*   s,
+             char**  end,
+             int     base )
+  {
+    short                 v, neg;
+    const unsigned char*  dmap;
+
+
+    if ( s == 0 || *s == 0 )
+      return 0;
+
+    /* Make sure the radix is something recognizable.  Default to 10. */
+    switch ( base )
+    {
+    case 8:
+      dmap = odigits;
+      break;
+    case 16:
+      dmap = hdigits;
+      break;
+    default:
+      base = 10;
+      dmap = ddigits;
+      break;
+    }
+
+    /* Check for a minus. */
+    neg = 0;
+    if ( *s == '-' )
+    {
+      s++;
+      neg = 1;
+    }
+
+    /* Check for the special hex prefix. */
+    if ( *s == '0'                                  &&
+         ( *( s + 1 ) == 'x' || *( s + 1 ) == 'X' ) )
+    {
+      base = 16;
+      dmap = hdigits;
+      s   += 2;
+    }
+
+    for ( v = 0; isdigok( dmap, *s ); s++ )
+      v = (short)( v * base + a2i[(int)*s] );
+
+    if ( end != 0 )
+      *end = s;
+
+    return (short)( ( !neg ) ? v : -v );
+  }
+
+
+  /* Routine to compare two glyphs by encoding so they can be sorted. */
+  static int
+  by_encoding( const void*  a,
+               const void*  b )
+  {
+    bdf_glyph_t  *c1, *c2;
+
+
+    c1 = (bdf_glyph_t *)a;
+    c2 = (bdf_glyph_t *)b;
+
+    if ( c1->encoding < c2->encoding )
+      return -1;
+
+    if ( c1->encoding > c2->encoding )
+      return 1;
+
+    return 0;
+  }
+
+
+  static FT_Error
+  bdf_create_property( char*        name,
+                       int          format,
+                       bdf_font_t*  font )
+  {
+    size_t           n;
+    bdf_property_t*  p;
+    FT_Memory        memory = font->memory;
+    FT_Error         error = BDF_Err_Ok;
+
+
+    /* First check to see if the property has      */
+    /* already been added or not.  If it has, then */
+    /* simply ignore it.                           */
+    if ( hash_lookup( name, &(font->proptbl) ) )
+      goto Exit;
+
+    if ( FT_RENEW_ARRAY( font->user_props,
+                         font->nuser_props,
+                         font->nuser_props + 1 ) )
+      goto Exit;
+
+    p = font->user_props + font->nuser_props;
+    FT_ZERO( p );
+
+    n = ft_strlen( name ) + 1;
+    if ( n > FT_ULONG_MAX )
+      return BDF_Err_Invalid_Argument;
+
+    if ( FT_NEW_ARRAY( p->name, n ) )
+      goto Exit;
+
+    FT_MEM_COPY( (char *)p->name, name, n );
+
+    p->format  = format;
+    p->builtin = 0;
+
+    n = _num_bdf_properties + font->nuser_props;
+
+    error = hash_insert( p->name, n, &(font->proptbl), memory );
+    if ( error )
+      goto Exit;
+
+    font->nuser_props++;
+
+  Exit:
+    return error;
+  }
+
+
+  FT_LOCAL_DEF( bdf_property_t * )
+  bdf_get_property( char*        name,
+                    bdf_font_t*  font )
+  {
+    hashnode  hn;
+    size_t    propid;
+
+
+    if ( name == 0 || *name == 0 )
+      return 0;
+
+    if ( ( hn = hash_lookup( name, &(font->proptbl) ) ) == 0 )
+      return 0;
+
+    propid = hn->data;
+    if ( propid >= _num_bdf_properties )
+      return font->user_props + ( propid - _num_bdf_properties );
+
+    return (bdf_property_t*)_bdf_properties + propid;
+  }
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* BDF font file parsing flags and functions.                            */
+  /*                                                                       */
+  /*************************************************************************/
+
+
+  /* Parse flags. */
+
+#define _BDF_START      0x0001
+#define _BDF_FONT_NAME  0x0002
+#define _BDF_SIZE       0x0004
+#define _BDF_FONT_BBX   0x0008
+#define _BDF_PROPS      0x0010
+#define _BDF_GLYPHS     0x0020
+#define _BDF_GLYPH      0x0040
+#define _BDF_ENCODING   0x0080
+#define _BDF_SWIDTH     0x0100
+#define _BDF_DWIDTH     0x0200
+#define _BDF_BBX        0x0400
+#define _BDF_BITMAP     0x0800
+
+#define _BDF_SWIDTH_ADJ  0x1000
+
+#define _BDF_GLYPH_BITS ( _BDF_GLYPH    | \
+                          _BDF_ENCODING | \
+                          _BDF_SWIDTH   | \
+                          _BDF_DWIDTH   | \
+                          _BDF_BBX      | \
+                          _BDF_BITMAP   )
+
+#define _BDF_GLYPH_WIDTH_CHECK   0x40000000UL
+#define _BDF_GLYPH_HEIGHT_CHECK  0x80000000UL
+
+
+  /* Auto correction messages. */
+#define ACMSG1   "FONT_ASCENT property missing.  " \
+                 "Added \"FONT_ASCENT %hd\".\n"
+#define ACMSG2   "FONT_DESCENT property missing.  " \
+                 "Added \"FONT_DESCENT %hd\".\n"
+#define ACMSG3   "Font width != actual width.  Old: %hd New: %hd.\n"
+#define ACMSG4   "Font left bearing != actual left bearing.  " \
+                 "Old: %hd New: %hd.\n"
+#define ACMSG5   "Font ascent != actual ascent.  Old: %hd New: %hd.\n"
+#define ACMSG6   "Font descent != actual descent.  Old: %hd New: %hd.\n"
+#define ACMSG7   "Font height != actual height. Old: %hd New: %hd.\n"
+#define ACMSG8   "Glyph scalable width (SWIDTH) adjustments made.\n"
+#define ACMSG9   "SWIDTH field missing at line %ld.  Set automatically.\n"
+#define ACMSG10  "DWIDTH field missing at line %ld.  Set to glyph width.\n"
+#define ACMSG11  "SIZE bits per pixel field adjusted to %hd.\n"
+#define ACMSG12  "Duplicate encoding %ld (%s) changed to unencoded.\n"
+#define ACMSG13  "Glyph %ld extra rows removed.\n"
+#define ACMSG14  "Glyph %ld extra columns removed.\n"
+#define ACMSG15  "Incorrect glyph count: %ld indicated but %ld found.\n"
+
+  /* Error messages. */
+#define ERRMSG1  "[line %ld] Missing \"%s\" line.\n"
+#define ERRMSG2  "[line %ld] Font header corrupted or missing fields.\n"
+#define ERRMSG3  "[line %ld] Font glyphs corrupted or missing fields.\n"
+#define ERRMSG4  "[line %ld] BBX too big.\n"
+
+
+  static FT_Error
+  _bdf_add_comment( bdf_font_t*    font,
+                    char*          comment,
+                    unsigned long  len )
+  {
+    char*      cp;
+    FT_Memory  memory = font->memory;
+    FT_Error   error = BDF_Err_Ok;
+
+
+    if ( FT_RENEW_ARRAY( font->comments,
+                         font->comments_len,
+                         font->comments_len + len + 1 ) )
+      goto Exit;
+
+    cp = font->comments + font->comments_len;
+
+    FT_MEM_COPY( cp, comment, len );
+    cp[len] = '\n';
+
+    font->comments_len += len + 1;
+
+  Exit:
+    return error;
+  }
+
+
+  /* Set the spacing from the font name if it exists, or set it to the */
+  /* default specified in the options.                                 */
+  static FT_Error
+  _bdf_set_default_spacing( bdf_font_t*     font,
+                            bdf_options_t*  opts )
+  {
+    size_t       len;
+    char         name[256];
+    _bdf_list_t  list;
+    FT_Memory    memory;
+    FT_Error     error = BDF_Err_Ok;
+
+
+    if ( font == 0 || font->name == 0 || font->name[0] == 0 )
+    {
+      error = BDF_Err_Invalid_Argument;
+      goto Exit;
+    }
+
+    memory = font->memory;
+
+    _bdf_list_init( &list, memory );
+
+    font->spacing = opts->font_spacing;
+
+    len = ft_strlen( font->name ) + 1;
+    /* Limit ourselves to 256 characters in the font name. */
+    if ( len >= 256 )
+    {
+      error = BDF_Err_Invalid_Argument;
+      goto Exit;
+    }
+
+    FT_MEM_COPY( name, font->name, len );
+
+    error = _bdf_list_split( &list, (char *)"-", name, len );
+    if ( error )
+      goto Fail;
+
+    if ( list.used == 15 )
+    {
+      switch ( list.field[11][0] )
+      {
+      case 'C':
+      case 'c':
+        font->spacing = BDF_CHARCELL;
+        break;
+      case 'M':
+      case 'm':
+        font->spacing = BDF_MONOWIDTH;
+        break;
+      case 'P':
+      case 'p':
+        font->spacing = BDF_PROPORTIONAL;
+        break;
+      }
+    }
+
+  Fail:
+    _bdf_list_done( &list );
+
+  Exit:
+    return error;
+  }
+
+
+  /* Determine whether the property is an atom or not.  If it is, then */
+  /* clean it up so the double quotes are removed if they exist.       */
+  static int
+  _bdf_is_atom( char*          line,
+                unsigned long  linelen,
+                char**         name,
+                char**         value,
+                bdf_font_t*    font )
+  {
+    int              hold;
+    char             *sp, *ep;
+    bdf_property_t*  p;
+
+
+    *name = sp = ep = line;
+
+    while ( *ep && *ep != ' ' && *ep != '\t' )
+      ep++;
+
+    hold = -1;
+    if ( *ep )
+    {
+      hold = *ep;
+      *ep  = 0;
+    }
+
+    p = bdf_get_property( sp, font );
+
+    /* Restore the character that was saved before any return can happen. */
+    if ( hold != -1 )
+      *ep = (char)hold;
+
+    /* If the property exists and is not an atom, just return here. */
+    if ( p && p->format != BDF_ATOM )
+      return 0;
+
+    /* The property is an atom.  Trim all leading and trailing whitespace */
+    /* and double quotes for the atom value.                              */
+    sp = ep;
+    ep = line + linelen;
+
+    /* Trim the leading whitespace if it exists. */
+    *sp++ = 0;
+    while ( *sp                           &&
+            ( *sp == ' ' || *sp == '\t' ) )
+      sp++;
+
+    /* Trim the leading double quote if it exists. */
+    if ( *sp == '"' )
+      sp++;
+    *value = sp;
+
+    /* Trim the trailing whitespace if it exists. */
+    while ( ep > sp                                       &&
+            ( *( ep - 1 ) == ' ' || *( ep - 1 ) == '\t' ) )
+      *--ep = 0;
+
+    /* Trim the trailing double quote if it exists. */
+    if ( ep > sp && *( ep - 1 ) == '"' )
+      *--ep = 0;
+
+    return 1;
+  }
+
+
+  static FT_Error
+  _bdf_add_property( bdf_font_t*  font,
+                     char*        name,
+                     char*        value )
+  {
+    size_t          propid;
+    hashnode        hn;
+    bdf_property_t  *prop, *fp;
+    FT_Memory       memory = font->memory;
+    FT_Error        error = BDF_Err_Ok;
+
+
+    /* First, check to see if the property already exists in the font. */
+    if ( ( hn = hash_lookup( name, (hashtable *)font->internal ) ) != 0 )
+    {
+      /* The property already exists in the font, so simply replace */
+      /* the value of the property with the current value.          */
+      fp = font->props + hn->data;
+
+      switch ( fp->format )
+      {
+      case BDF_ATOM:
+        /* Delete the current atom if it exists. */
+        FT_FREE( fp->value.atom );
+
+        if ( value && value[0] != 0 )
+        {
+          if ( FT_STRDUP( fp->value.atom, value ) )
+            goto Exit;
+        }
+        break;
+
+      case BDF_INTEGER:
+        fp->value.l = _bdf_atol( value, 0, 10 );
+        break;
+
+      case BDF_CARDINAL:
+        fp->value.ul = _bdf_atoul( value, 0, 10 );
+        break;
+
+      default:
+        ;
+      }
+
+      goto Exit;
+    }
+
+    /* See whether this property type exists yet or not. */
+    /* If not, create it.                                */
+    hn = hash_lookup( name, &(font->proptbl) );
+    if ( hn == 0 )
+    {
+      error = bdf_create_property( name, BDF_ATOM, font );
+      if ( error )
+        goto Exit;
+      hn = hash_lookup( name, &(font->proptbl) );
+    }
+
+    /* Allocate another property if this is overflow. */
+    if ( font->props_used == font->props_size )
+    {
+      if ( font->props_size == 0 )
+      {
+        if ( FT_NEW_ARRAY( font->props, 1 ) )
+          goto Exit;
+      }
+      else
+      {
+        if ( FT_RENEW_ARRAY( font->props,
+                             font->props_size,
+                             font->props_size + 1 ) )
+          goto Exit;
+      }
+
+      fp = font->props + font->props_size;
+      FT_MEM_ZERO( fp, sizeof ( bdf_property_t ) );
+      font->props_size++;
+    }
+
+    propid = hn->data;
+    if ( propid >= _num_bdf_properties )
+      prop = font->user_props + ( propid - _num_bdf_properties );
+    else
+      prop = (bdf_property_t*)_bdf_properties + propid;
+
+    fp = font->props + font->props_used;
+
+    fp->name    = prop->name;
+    fp->format  = prop->format;
+    fp->builtin = prop->builtin;
+
+    switch ( prop->format )
+    {
+    case BDF_ATOM:
+      fp->value.atom = 0;
+      if ( value != 0 && value[0] )
+      {
+        if ( FT_STRDUP( fp->value.atom, value ) )
+          goto Exit;
+      }
+      break;
+
+    case BDF_INTEGER:
+      fp->value.l = _bdf_atol( value, 0, 10 );
+      break;
+
+    case BDF_CARDINAL:
+      fp->value.ul = _bdf_atoul( value, 0, 10 );
+      break;
+    }
+
+    /* If the property happens to be a comment, then it doesn't need */
+    /* to be added to the internal hash table.                       */
+    if ( ft_memcmp( name, "COMMENT", 7 ) != 0 )
+    {
+      /* Add the property to the font property table. */
+      error = hash_insert( fp->name,
+                           font->props_used,
+                           (hashtable *)font->internal,
+                           memory );
+      if ( error )
+        goto Exit;
+    }
+
+    font->props_used++;
+
+    /* Some special cases need to be handled here.  The DEFAULT_CHAR       */
+    /* property needs to be located if it exists in the property list, the */
+    /* FONT_ASCENT and FONT_DESCENT need to be assigned if they are        */
+    /* present, and the SPACING property should override the default       */
+    /* spacing.                                                            */
+    if ( ft_memcmp( name, "DEFAULT_CHAR", 12 ) == 0 )
+      font->default_char = fp->value.l;
+    else if ( ft_memcmp( name, "FONT_ASCENT", 11 ) == 0 )
+      font->font_ascent = fp->value.l;
+    else if ( ft_memcmp( name, "FONT_DESCENT", 12 ) == 0 )
+      font->font_descent = fp->value.l;
+    else if ( ft_memcmp( name, "SPACING", 7 ) == 0 )
+    {
+      if ( !fp->value.atom )
+      {
+        error = BDF_Err_Invalid_File_Format;
+        goto Exit;
+      }
+
+      if ( fp->value.atom[0] == 'p' || fp->value.atom[0] == 'P' )
+        font->spacing = BDF_PROPORTIONAL;
+      else if ( fp->value.atom[0] == 'm' || fp->value.atom[0] == 'M' )
+        font->spacing = BDF_MONOWIDTH;
+      else if ( fp->value.atom[0] == 'c' || fp->value.atom[0] == 'C' )
+        font->spacing = BDF_CHARCELL;
+    }
+
+  Exit:
+    return error;
+  }
+
+
+  static const unsigned char nibble_mask[8] =
+  {
+    0xFF, 0x80, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC, 0xFE
+  };
+
+
+  /* Actually parse the glyph info and bitmaps. */
+  static FT_Error
+  _bdf_parse_glyphs( char*          line,
+                     unsigned long  linelen,
+                     unsigned long  lineno,
+                     void*          call_data,
+                     void*          client_data )
+  {
+    int                c, mask_index;
+    char*              s;
+    unsigned char*     bp;
+    unsigned long      i, slen, nibbles;
+
+    _bdf_parse_t*      p;
+    bdf_glyph_t*       glyph;
+    bdf_font_t*        font;
+
+    FT_Memory          memory;
+    FT_Error           error = BDF_Err_Ok;
+
+    FT_UNUSED( call_data );
+    FT_UNUSED( lineno );        /* only used in debug mode */
+
+
+    p = (_bdf_parse_t *)client_data;
+
+    font   = p->font;
+    memory = font->memory;
+
+    /* Check for a comment. */
+    if ( ft_memcmp( line, "COMMENT", 7 ) == 0 )
+    {
+      linelen -= 7;
+
+      s = line + 7;
+      if ( *s != 0 )
+      {
+        s++;
+        linelen--;
+      }
+      error = _bdf_add_comment( p->font, s, linelen );
+      goto Exit;
+    }
+
+    /* The very first thing expected is the number of glyphs. */
+    if ( !( p->flags & _BDF_GLYPHS ) )
+    {
+      if ( ft_memcmp( line, "CHARS", 5 ) != 0 )
+      {
+        FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG1, lineno, "CHARS" ));
+        error = BDF_Err_Missing_Chars_Field;
+        goto Exit;
+      }
+
+      error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
+      if ( error )
+        goto Exit;
+      p->cnt = font->glyphs_size = _bdf_atoul( p->list.field[1], 0, 10 );
+
+      /* Make sure the number of glyphs is non-zero. */
+      if ( p->cnt == 0 )
+        font->glyphs_size = 64;
+
+      /* Limit ourselves to 1,114,112 glyphs in the font (this is the */
+      /* number of code points available in Unicode).                 */
+      if ( p->cnt >= 1114112UL )
+      {
+        error = BDF_Err_Invalid_Argument;
+        goto Exit;
+      }
+
+      if ( FT_NEW_ARRAY( font->glyphs, font->glyphs_size ) )
+        goto Exit;
+
+      p->flags |= _BDF_GLYPHS;
+
+      goto Exit;
+    }
+
+    /* Check for the ENDFONT field. */
+    if ( ft_memcmp( line, "ENDFONT", 7 ) == 0 )
+    {
+      /* Sort the glyphs by encoding. */
+      ft_qsort( (char *)font->glyphs,
+                font->glyphs_used,
+                sizeof ( bdf_glyph_t ),
+                by_encoding );
+
+      p->flags &= ~_BDF_START;
+
+      goto Exit;
+    }
+
+    /* Check for the ENDCHAR field. */
+    if ( ft_memcmp( line, "ENDCHAR", 7 ) == 0 )
+    {
+      p->glyph_enc = 0;
+      p->flags    &= ~_BDF_GLYPH_BITS;
+
+      goto Exit;
+    }
+
+    /* Check to see whether a glyph is being scanned but should be */
+    /* ignored because it is an unencoded glyph.                   */
+    if ( ( p->flags & _BDF_GLYPH )     &&
+         p->glyph_enc            == -1 &&
+         p->opts->keep_unencoded == 0  )
+      goto Exit;
+
+    /* Check for the STARTCHAR field. */
+    if ( ft_memcmp( line, "STARTCHAR", 9 ) == 0 )
+    {
+      /* Set the character name in the parse info first until the */
+      /* encoding can be checked for an unencoded character.      */
+      FT_FREE( p->glyph_name );
+
+      error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
+      if ( error )
+        goto Exit;
+
+      _bdf_list_shift( &p->list, 1 );
+
+      s = _bdf_list_join( &p->list, ' ', &slen );
+
+      if ( !s )
+      {
+        error = BDF_Err_Invalid_File_Format;
+        goto Exit;
+      }
+
+      if ( FT_NEW_ARRAY( p->glyph_name, slen + 1 ) )
+        goto Exit;
+
+      FT_MEM_COPY( p->glyph_name, s, slen + 1 );
+
+      p->flags |= _BDF_GLYPH;
+
+      goto Exit;
+    }
+
+    /* Check for the ENCODING field. */
+    if ( ft_memcmp( line, "ENCODING", 8 ) == 0 )
+    {
+      if ( !( p->flags & _BDF_GLYPH ) )
+      {
+        /* Missing STARTCHAR field. */
+        FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG1, lineno, "STARTCHAR" ));
+        error = BDF_Err_Missing_Startchar_Field;
+        goto Exit;
+      }
+
+      error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
+      if ( error )
+        goto Exit;
+
+      p->glyph_enc = _bdf_atol( p->list.field[1], 0, 10 );
+
+      /* Check that the encoding is in the range [0,65536] because        */
+      /* otherwise p->have (a bitmap with static size) overflows.         */
+      if ( (size_t)p->glyph_enc >= sizeof ( p->have ) * 8 )
+      {
+        error = BDF_Err_Invalid_File_Format;
+        goto Exit;
+      }
+
+      /* Check to see whether this encoding has already been encountered. */
+      /* If it has then change it to unencoded so it gets added if        */
+      /* indicated.                                                       */
+      if ( p->glyph_enc >= 0 )
+      {
+        if ( _bdf_glyph_modified( p->have, p->glyph_enc ) )
+        {
+          /* Emit a message saying a glyph has been moved to the */
+          /* unencoded area.                                     */
+          FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG12,
+                      p->glyph_enc, p->glyph_name ));
+          p->glyph_enc = -1;
+          font->modified = 1;
+        }
+        else
+          _bdf_set_glyph_modified( p->have, p->glyph_enc );
+      }
+
+      if ( p->glyph_enc >= 0 )
+      {
+        /* Make sure there are enough glyphs allocated in case the */
+        /* number of characters happen to be wrong.                */
+        if ( font->glyphs_used == font->glyphs_size )
+        {
+          if ( FT_RENEW_ARRAY( font->glyphs,
+                               font->glyphs_size,
+                               font->glyphs_size + 64 ) )
+            goto Exit;
+
+          font->glyphs_size += 64;
+        }
+
+        glyph           = font->glyphs + font->glyphs_used++;
+        glyph->name     = p->glyph_name;
+        glyph->encoding = p->glyph_enc;
+
+        /* Reset the initial glyph info. */
+        p->glyph_name = 0;
+      }
+      else
+      {
+        /* Unencoded glyph.  Check to see whether it should */
+        /* be added or not.                                 */
+        if ( p->opts->keep_unencoded != 0 )
+        {
+          /* Allocate the next unencoded glyph. */
+          if ( font->unencoded_used == font->unencoded_size )
+          {
+            if ( FT_RENEW_ARRAY( font->unencoded ,
+                                 font->unencoded_size,
+                                 font->unencoded_size + 4 ) )
+              goto Exit;
+
+            font->unencoded_size += 4;
+          }
+
+          glyph           = font->unencoded + font->unencoded_used;
+          glyph->name     = p->glyph_name;
+          glyph->encoding = font->unencoded_used++;
+        }
+        else
+          /* Free up the glyph name if the unencoded shouldn't be */
+          /* kept.                                                */
+          FT_FREE( p->glyph_name );
+
+        p->glyph_name = 0;
+      }
+
+      /* Clear the flags that might be added when width and height are */
+      /* checked for consistency.                                      */
+      p->flags &= ~( _BDF_GLYPH_WIDTH_CHECK | _BDF_GLYPH_HEIGHT_CHECK );
+
+      p->flags |= _BDF_ENCODING;
+
+      goto Exit;
+    }
+
+    /* Point at the glyph being constructed. */
+    if ( p->glyph_enc == -1 )
+      glyph = font->unencoded + ( font->unencoded_used - 1 );
+    else
+      glyph = font->glyphs + ( font->glyphs_used - 1 );
+
+    /* Check to see whether a bitmap is being constructed. */
+    if ( p->flags & _BDF_BITMAP )
+    {
+      /* If there are more rows than are specified in the glyph metrics, */
+      /* ignore the remaining lines.                                     */
+      if ( p->row >= (unsigned long)glyph->bbx.height )
+      {
+        if ( !( p->flags & _BDF_GLYPH_HEIGHT_CHECK ) )
+        {
+          FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG13, glyph->encoding ));
+          p->flags |= _BDF_GLYPH_HEIGHT_CHECK;
+          font->modified = 1;
+        }
+
+        goto Exit;
+      }
+
+      /* Only collect the number of nibbles indicated by the glyph     */
+      /* metrics.  If there are more columns, they are simply ignored. */
+      nibbles = glyph->bpr << 1;
+      bp      = glyph->bitmap + p->row * glyph->bpr;
+
+      for ( i = 0; i < nibbles; i++ )
+      {
+        c = line[i];
+        *bp = (FT_Byte)( ( *bp << 4 ) + a2i[c] );
+        if ( i + 1 < nibbles && ( i & 1 ) )
+          *++bp = 0;
+      }
+
+      /* Remove possible garbage at the right. */
+      mask_index = ( glyph->bbx.width * p->font->bpp ) & 7;
+      if ( glyph->bbx.width )
+        *bp &= nibble_mask[mask_index];
+
+      /* If any line has extra columns, indicate they have been removed. */
+      if ( ( line[nibbles] == '0' || a2i[(int)line[nibbles]] != 0 ) &&
+           !( p->flags & _BDF_GLYPH_WIDTH_CHECK )                   )
+      {
+        FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG14, glyph->encoding ));
+        p->flags       |= _BDF_GLYPH_WIDTH_CHECK;
+        font->modified  = 1;
+      }
+
+      p->row++;
+      goto Exit;
+    }
+
+    /* Expect the SWIDTH (scalable width) field next. */
+    if ( ft_memcmp( line, "SWIDTH", 6 ) == 0 )
+    {
+      if ( !( p->flags & _BDF_ENCODING ) )
+      {
+        /* Missing ENCODING field. */
+        FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG1, lineno, "ENCODING" ));
+        error = BDF_Err_Missing_Encoding_Field;
+        goto Exit;
+      }
+
+      error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
+      if ( error )
+        goto Exit;
+
+      glyph->swidth = (unsigned short)_bdf_atoul( p->list.field[1], 0, 10 );
+      p->flags |= _BDF_SWIDTH;
+
+      goto Exit;
+    }
+
+    /* Expect the DWIDTH (scalable width) field next. */
+    if ( ft_memcmp( line, "DWIDTH", 6 ) == 0 )
+    {
+      error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
+      if ( error )
+        goto Exit;
+
+      glyph->dwidth = (unsigned short)_bdf_atoul( p->list.field[1], 0, 10 );
+
+      if ( !( p->flags & _BDF_SWIDTH ) )
+      {
+        /* Missing SWIDTH field.  Emit an auto correction message and set */
+        /* the scalable width from the device width.                      */
+        FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG9, lineno ));
+
+        glyph->swidth = (unsigned short)FT_MulDiv(
+                          glyph->dwidth, 72000L,
+                          (FT_Long)( font->point_size *
+                                     font->resolution_x ) );
+      }
+
+      p->flags |= _BDF_DWIDTH;
+      goto Exit;
+    }
+
+    /* Expect the BBX field next. */
+    if ( ft_memcmp( line, "BBX", 3 ) == 0 )
+    {
+      error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
+      if ( error )
+        goto Exit;
+
+      glyph->bbx.width    = _bdf_atos( p->list.field[1], 0, 10 );
+      glyph->bbx.height   = _bdf_atos( p->list.field[2], 0, 10 );
+      glyph->bbx.x_offset = _bdf_atos( p->list.field[3], 0, 10 );
+      glyph->bbx.y_offset = _bdf_atos( p->list.field[4], 0, 10 );
+
+      /* Generate the ascent and descent of the character. */
+      glyph->bbx.ascent  = (short)( glyph->bbx.height + glyph->bbx.y_offset );
+      glyph->bbx.descent = (short)( -glyph->bbx.y_offset );
+
+      /* Determine the overall font bounding box as the characters are */
+      /* loaded so corrections can be done later if indicated.         */
+      p->maxas    = (short)FT_MAX( glyph->bbx.ascent, p->maxas );
+      p->maxds    = (short)FT_MAX( glyph->bbx.descent, p->maxds );
+
+      p->rbearing = (short)( glyph->bbx.width + glyph->bbx.x_offset );
+
+      p->maxrb    = (short)FT_MAX( p->rbearing, p->maxrb );
+      p->minlb    = (short)FT_MIN( glyph->bbx.x_offset, p->minlb );
+      p->maxlb    = (short)FT_MAX( glyph->bbx.x_offset, p->maxlb );
+
+      if ( !( p->flags & _BDF_DWIDTH ) )
+      {
+        /* Missing DWIDTH field.  Emit an auto correction message and set */
+        /* the device width to the glyph width.                           */
+        FT_TRACE2(( "_bdf_parse_glyphs: " ACMSG10, lineno ));
+        glyph->dwidth = glyph->bbx.width;
+      }
+
+      /* If the BDF_CORRECT_METRICS flag is set, then adjust the SWIDTH */
+      /* value if necessary.                                            */
+      if ( p->opts->correct_metrics != 0 )
+      {
+        /* Determine the point size of the glyph. */
+        unsigned short  sw = (unsigned short)FT_MulDiv(
+                               glyph->dwidth, 72000L,
+                               (FT_Long)( font->point_size *
+                                          font->resolution_x ) );
+
+
+        if ( sw != glyph->swidth )
+        {
+          glyph->swidth = sw;
+
+          if ( p->glyph_enc == -1 )
+            _bdf_set_glyph_modified( font->umod,
+                                     font->unencoded_used - 1 );
+          else
+            _bdf_set_glyph_modified( font->nmod, glyph->encoding );
+
+          p->flags       |= _BDF_SWIDTH_ADJ;
+          font->modified  = 1;
+        }
+      }
+
+      p->flags |= _BDF_BBX;
+      goto Exit;
+    }
+
+    /* And finally, gather up the bitmap. */
+    if ( ft_memcmp( line, "BITMAP", 6 ) == 0 )
+    {
+      unsigned long  bitmap_size;
+
+
+      if ( !( p->flags & _BDF_BBX ) )
+      {
+        /* Missing BBX field. */
+        FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG1, lineno, "BBX" ));
+        error = BDF_Err_Missing_Bbx_Field;
+        goto Exit;
+      }
+
+      /* Allocate enough space for the bitmap. */
+      glyph->bpr   = ( glyph->bbx.width * p->font->bpp + 7 ) >> 3;
+
+      bitmap_size = glyph->bpr * glyph->bbx.height;
+      if ( bitmap_size > 0xFFFFU )
+      {
+        FT_ERROR(( "_bdf_parse_glyphs: " ERRMSG4, lineno ));
+        error = BDF_Err_Bbx_Too_Big;
+        goto Exit;
+      }
+      else
+        glyph->bytes = (unsigned short)bitmap_size;
+
+      if ( FT_NEW_ARRAY( glyph->bitmap, glyph->bytes ) )
+        goto Exit;
+
+      p->row    = 0;
+      p->flags |= _BDF_BITMAP;
+
+      goto Exit;
+    }
+
+    error = BDF_Err_Invalid_File_Format;
+
+  Exit:
+    if ( error && ( p->flags & _BDF_GLYPH ) )
+      FT_FREE( p->glyph_name );
+
+    return error;
+  }
+
+
+  /* Load the font properties. */
+  static FT_Error
+  _bdf_parse_properties( char*          line,
+                         unsigned long  linelen,
+                         unsigned long  lineno,
+                         void*          call_data,
+                         void*          client_data )
+  {
+    unsigned long      vlen;
+    _bdf_line_func_t*  next;
+    _bdf_parse_t*      p;
+    char*              name;
+    char*              value;
+    char               nbuf[128];
+    FT_Error           error = BDF_Err_Ok;
+
+    FT_UNUSED( lineno );
+
+
+    next = (_bdf_line_func_t *)call_data;
+    p    = (_bdf_parse_t *)    client_data;
+
+    /* Check for the end of the properties. */
+    if ( ft_memcmp( line, "ENDPROPERTIES", 13 ) == 0 )
+    {
+      /* If the FONT_ASCENT or FONT_DESCENT properties have not been      */
+      /* encountered yet, then make sure they are added as properties and */
+      /* make sure they are set from the font bounding box info.          */
+      /*                                                                  */
+      /* This is *always* done regardless of the options, because X11     */
+      /* requires these two fields to compile fonts.                      */
+      if ( bdf_get_font_property( p->font, "FONT_ASCENT" ) == 0 )
+      {
+        p->font->font_ascent = p->font->bbx.ascent;
+        ft_sprintf( nbuf, "%hd", p->font->bbx.ascent );
+        error = _bdf_add_property( p->font, (char *)"FONT_ASCENT", nbuf );
+        if ( error )
+          goto Exit;
+
+        FT_TRACE2(( "_bdf_parse_properties: " ACMSG1, p->font->bbx.ascent ));
+        p->font->modified = 1;
+      }
+
+      if ( bdf_get_font_property( p->font, "FONT_DESCENT" ) == 0 )
+      {
+        p->font->font_descent = p->font->bbx.descent;
+        ft_sprintf( nbuf, "%hd", p->font->bbx.descent );
+        error = _bdf_add_property( p->font, (char *)"FONT_DESCENT", nbuf );
+        if ( error )
+          goto Exit;
+
+        FT_TRACE2(( "_bdf_parse_properties: " ACMSG2, p->font->bbx.descent ));
+        p->font->modified = 1;
+      }
+
+      p->flags &= ~_BDF_PROPS;
+      *next     = _bdf_parse_glyphs;
+
+      goto Exit;
+    }
+
+    /* Ignore the _XFREE86_GLYPH_RANGES properties. */
+    if ( ft_memcmp( line, "_XFREE86_GLYPH_RANGES", 21 ) == 0 )
+      goto Exit;
+
+    /* Handle COMMENT fields and properties in a special way to preserve */
+    /* the spacing.                                                      */
+    if ( ft_memcmp( line, "COMMENT", 7 ) == 0 )
+    {
+      name = value = line;
+      value += 7;
+      if ( *value )
+        *value++ = 0;
+      error = _bdf_add_property( p->font, name, value );
+      if ( error )
+        goto Exit;
+    }
+    else if ( _bdf_is_atom( line, linelen, &name, &value, p->font ) )
+    {
+      error = _bdf_add_property( p->font, name, value );
+      if ( error )
+        goto Exit;
+    }
+    else
+    {
+      error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
+      if ( error )
+        goto Exit;
+      name = p->list.field[0];
+
+      _bdf_list_shift( &p->list, 1 );
+      value = _bdf_list_join( &p->list, ' ', &vlen );
+
+      error = _bdf_add_property( p->font, name, value );
+      if ( error )
+        goto Exit;
+    }
+
+  Exit:
+    return error;
+  }
+
+
+  /* Load the font header. */
+  static FT_Error
+  _bdf_parse_start( char*          line,
+                    unsigned long  linelen,
+                    unsigned long  lineno,
+                    void*          call_data,
+                    void*          client_data )
+  {
+    unsigned long      slen;
+    _bdf_line_func_t*  next;
+    _bdf_parse_t*      p;
+    bdf_font_t*        font;
+    char               *s;
+
+    FT_Memory          memory = NULL;
+    FT_Error           error  = BDF_Err_Ok;
+
+    FT_UNUSED( lineno );            /* only used in debug mode */
+
+
+    next = (_bdf_line_func_t *)call_data;
+    p    = (_bdf_parse_t *)    client_data;
+
+    if ( p->font )
+      memory = p->font->memory;
+
+    /* Check for a comment.  This is done to handle those fonts that have */
+    /* comments before the STARTFONT line for some reason.                */
+    if ( ft_memcmp( line, "COMMENT", 7 ) == 0 )
+    {
+      if ( p->opts->keep_comments != 0 && p->font != 0 )
+      {
+        linelen -= 7;
+
+        s = line + 7;
+        if ( *s != 0 )
+        {
+          s++;
+          linelen--;
+        }
+
+        error = _bdf_add_comment( p->font, s, linelen );
+        if ( error )
+          goto Exit;
+        /* here font is not defined! */
+      }
+
+      goto Exit;
+    }
+
+    if ( !( p->flags & _BDF_START ) )
+    {
+      memory = p->memory;
+
+      if ( ft_memcmp( line, "STARTFONT", 9 ) != 0 )
+      {
+        /* No STARTFONT field is a good indication of a problem. */
+        error = BDF_Err_Missing_Startfont_Field;
+        goto Exit;
+      }
+
+      p->flags = _BDF_START;
+      font = p->font = 0;
+
+      if ( FT_NEW( font ) )
+        goto Exit;
+      p->font = font;
+
+      font->memory = p->memory;
+      p->memory    = 0;
+
+      { /* setup */
+        size_t           i;
+        bdf_property_t*  prop;
+
+
+        error = hash_init( &(font->proptbl), memory );
+        if ( error )
+          goto Exit;
+        for ( i = 0, prop = (bdf_property_t*)_bdf_properties;
+              i < _num_bdf_properties; i++, prop++ )
+        {
+          error = hash_insert( prop->name, i,
+                               &(font->proptbl), memory );
+          if ( error )
+            goto Exit;
+        }
+      }
+
+      if ( FT_ALLOC( p->font->internal, sizeof ( hashtable ) ) )
+        goto Exit;
+      error = hash_init( (hashtable *)p->font->internal,memory );
+      if ( error )
+        goto Exit;
+      p->font->spacing      = p->opts->font_spacing;
+      p->font->default_char = -1;
+
+      goto Exit;
+    }
+
+    /* Check for the start of the properties. */
+    if ( ft_memcmp( line, "STARTPROPERTIES", 15 ) == 0 )
+    {
+      if ( !( p->flags & _BDF_FONT_BBX ) )
+      {
+        /* Missing the FONTBOUNDINGBOX field. */
+        FT_ERROR(( "_bdf_parse_start: " ERRMSG1, lineno, "FONTBOUNDINGBOX" ));
+        error = BDF_Err_Missing_Fontboundingbox_Field;
+        goto Exit;
+      }
+
+      error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
+      if ( error )
+        goto Exit;
+      /* at this point, `p->font' can't be NULL */
+      p->cnt = p->font->props_size = _bdf_atoul( p->list.field[1], 0, 10 );
+
+      if ( FT_NEW_ARRAY( p->font->props, p->cnt ) )
+        goto Exit;
+
+      p->flags |= _BDF_PROPS;
+      *next     = _bdf_parse_properties;
+
+      goto Exit;
+    }
+
+    /* Check for the FONTBOUNDINGBOX field. */
+    if ( ft_memcmp( line, "FONTBOUNDINGBOX", 15 ) == 0 )
+    {
+      if ( !( p->flags & _BDF_SIZE ) )
+      {
+        /* Missing the SIZE field. */
+        FT_ERROR(( "_bdf_parse_start: " ERRMSG1, lineno, "SIZE" ));
+        error = BDF_Err_Missing_Size_Field;
+        goto Exit;
+      }
+
+      error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
+      if ( error )
+        goto Exit;
+
+      p->font->bbx.width  = _bdf_atos( p->list.field[1], 0, 10 );
+      p->font->bbx.height = _bdf_atos( p->list.field[2], 0, 10 );
+
+      p->font->bbx.x_offset = _bdf_atos( p->list.field[3], 0, 10 );
+      p->font->bbx.y_offset = _bdf_atos( p->list.field[4], 0, 10 );
+
+      p->font->bbx.ascent  = (short)( p->font->bbx.height +
+                                      p->font->bbx.y_offset );
+
+      p->font->bbx.descent = (short)( -p->font->bbx.y_offset );
+
+      p->flags |= _BDF_FONT_BBX;
+
+      goto Exit;
+    }
+
+    /* The next thing to check for is the FONT field. */
+    if ( ft_memcmp( line, "FONT", 4 ) == 0 )
+    {
+      error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
+      if ( error )
+        goto Exit;
+      _bdf_list_shift( &p->list, 1 );
+
+      s = _bdf_list_join( &p->list, ' ', &slen );
+
+      if ( !s )
+      {
+        error = BDF_Err_Invalid_File_Format;
+        goto Exit;
+      }
+
+      /* Allowing multiple `FONT' lines (which is invalid) doesn't hurt... */
+      FT_FREE( p->font->name );
+
+      if ( FT_NEW_ARRAY( p->font->name, slen + 1 ) )
+        goto Exit;
+      FT_MEM_COPY( p->font->name, s, slen + 1 );
+
+      /* If the font name is an XLFD name, set the spacing to the one in  */
+      /* the font name.  If there is no spacing fall back on the default. */
+      error = _bdf_set_default_spacing( p->font, p->opts );
+      if ( error )
+        goto Exit;
+
+      p->flags |= _BDF_FONT_NAME;
+
+      goto Exit;
+    }
+
+    /* Check for the SIZE field. */
+    if ( ft_memcmp( line, "SIZE", 4 ) == 0 )
+    {
+      if ( !( p->flags & _BDF_FONT_NAME ) )
+      {
+        /* Missing the FONT field. */
+        FT_ERROR(( "_bdf_parse_start: " ERRMSG1, lineno, "FONT" ));
+        error = BDF_Err_Missing_Font_Field;
+        goto Exit;
+      }
+
+      error = _bdf_list_split( &p->list, (char *)" +", line, linelen );
+      if ( error )
+        goto Exit;
+
+      p->font->point_size   = _bdf_atoul( p->list.field[1], 0, 10 );
+      p->font->resolution_x = _bdf_atoul( p->list.field[2], 0, 10 );
+      p->font->resolution_y = _bdf_atoul( p->list.field[3], 0, 10 );
+
+      /* Check for the bits per pixel field. */
+      if ( p->list.used == 5 )
+      {
+        unsigned short bitcount, i, shift;
+
+
+        p->font->bpp = (unsigned short)_bdf_atos( p->list.field[4], 0, 10 );
+
+        /* Only values 1, 2, 4, 8 are allowed. */
+        shift = p->font->bpp;
+        bitcount = 0;
+        for ( i = 0; shift > 0; i++ )
+        {
+          if ( shift & 1 )
+            bitcount = i;
+          shift >>= 1;
+        }
+
+        shift = (short)( ( bitcount > 3 ) ? 8 : ( 1 << bitcount ) );
+
+        if ( p->font->bpp > shift || p->font->bpp != shift )
+        {
+          /* select next higher value */
+          p->font->bpp = (unsigned short)( shift << 1 );
+          FT_TRACE2(( "_bdf_parse_start: " ACMSG11, p->font->bpp ));
+        }
+      }
+      else
+        p->font->bpp = 1;
+
+      p->flags |= _BDF_SIZE;
+
+      goto Exit;
+    }
+
+    /* Check for the CHARS field -- font properties are optional */
+    if ( ft_memcmp( line, "CHARS", 5 ) == 0 )
+    {
+      char  nbuf[128];
+
+
+      if ( !( p->flags & _BDF_FONT_BBX ) )
+      {
+        /* Missing the FONTBOUNDINGBOX field. */
+        FT_ERROR(( "_bdf_parse_start: " ERRMSG1, lineno, "FONTBOUNDINGBOX" ));
+        error = BDF_Err_Missing_Fontboundingbox_Field;
+        goto Exit;
+      }
+
+      /* Add the two standard X11 properties which are required */
+      /* for compiling fonts.                                   */
+      p->font->font_ascent = p->font->bbx.ascent;
+      ft_sprintf( nbuf, "%hd", p->font->bbx.ascent );
+      error = _bdf_add_property( p->font, (char *)"FONT_ASCENT", nbuf );
+      if ( error )
+        goto Exit;
+      FT_TRACE2(( "_bdf_parse_properties: " ACMSG1, p->font->bbx.ascent ));
+
+      p->font->font_descent = p->font->bbx.descent;
+      ft_sprintf( nbuf, "%hd", p->font->bbx.descent );
+      error = _bdf_add_property( p->font, (char *)"FONT_DESCENT", nbuf );
+      if ( error )
+        goto Exit;
+      FT_TRACE2(( "_bdf_parse_properties: " ACMSG2, p->font->bbx.descent ));
+
+      p->font->modified = 1;
+
+      *next = _bdf_parse_glyphs;
+
+      /* A special return value. */
+      error = -1;
+      goto Exit;
+    }
+
+    error = BDF_Err_Invalid_File_Format;
+
+  Exit:
+    return error;
+  }
+
+
+  /*************************************************************************/
+  /*                                                                       */
+  /* API.                                                                  */
+  /*                                                                       */
+  /*************************************************************************/
+
+
+  FT_LOCAL_DEF( FT_Error )
+  bdf_load_font( FT_Stream       stream,
+                 FT_Memory       extmemory,
+                 bdf_options_t*  opts,
+                 bdf_font_t*    *font )
+  {
+    unsigned long  lineno = 0; /* make compiler happy */
+    _bdf_parse_t   *p     = NULL;
+
+    FT_Memory      memory = extmemory;
+    FT_Error       error  = BDF_Err_Ok;
+
+
+    if ( FT_NEW( p ) )
+      goto Exit;
+
+    memory    = NULL;
+    p->opts   = (bdf_options_t*)( ( opts != 0 ) ? opts : &_bdf_opts );
+    p->minlb  = 32767;
+    p->memory = extmemory;  /* only during font creation */
+
+    _bdf_list_init( &p->list, extmemory );
+
+    error = _bdf_readstream( stream, _bdf_parse_start,
+                             (void *)p, &lineno );
+    if ( error )
+      goto Fail;
+
+    if ( p->font != 0 )
+    {
+      /* If the font is not proportional, set the font's monowidth */
+      /* field to the width of the font bounding box.              */
+      memory = p->font->memory;
+
+      if ( p->font->spacing != BDF_PROPORTIONAL )
+        p->font->monowidth = p->font->bbx.width;
+
+      /* If the number of glyphs loaded is not that of the original count, */
+      /* indicate the difference.                                          */
+      if ( p->cnt != p->font->glyphs_used + p->font->unencoded_used )
+      {
+        FT_TRACE2(( "bdf_load_font: " ACMSG15, p->cnt,
+                    p->font->glyphs_used + p->font->unencoded_used ));
+        p->font->modified = 1;
+      }
+
+      /* Once the font has been loaded, adjust the overall font metrics if */
+      /* necessary.                                                        */
+      if ( p->opts->correct_metrics != 0 &&
+           ( p->font->glyphs_used > 0 || p->font->unencoded_used > 0 ) )
+      {
+        if ( p->maxrb - p->minlb != p->font->bbx.width )
+        {
+          FT_TRACE2(( "bdf_load_font: " ACMSG3,
+                      p->font->bbx.width, p->maxrb - p->minlb ));
+          p->font->bbx.width = (unsigned short)( p->maxrb - p->minlb );
+          p->font->modified  = 1;
+        }
+
+        if ( p->font->bbx.x_offset != p->minlb )
+        {
+          FT_TRACE2(( "bdf_load_font: " ACMSG4,
+                      p->font->bbx.x_offset, p->minlb ));
+          p->font->bbx.x_offset = p->minlb;
+          p->font->modified     = 1;
+        }
+
+        if ( p->font->bbx.ascent != p->maxas )
+        {
+          FT_TRACE2(( "bdf_load_font: " ACMSG5,
+                      p->font->bbx.ascent, p->maxas ));
+          p->font->bbx.ascent = p->maxas;
+          p->font->modified   = 1;
+        }
+
+        if ( p->font->bbx.descent != p->maxds )
+        {
+          FT_TRACE2(( "bdf_load_font: " ACMSG6,
+                      p->font->bbx.descent, p->maxds ));
+          p->font->bbx.descent  = p->maxds;
+          p->font->bbx.y_offset = (short)( -p->maxds );
+          p->font->modified     = 1;
+        }
+
+        if ( p->maxas + p->maxds != p->font->bbx.height )
+        {
+          FT_TRACE2(( "bdf_load_font: " ACMSG7,
+                      p->font->bbx.height, p->maxas + p->maxds ));
+          p->font->bbx.height = (unsigned short)( p->maxas + p->maxds );
+        }
+
+        if ( p->flags & _BDF_SWIDTH_ADJ )
+          FT_TRACE2(( "bdf_load_font: " ACMSG8 ));
+      }
+    }
+
+    if ( p->flags & _BDF_START )
+    {
+      {
+        /* The ENDFONT field was never reached or did not exist. */
+        if ( !( p->flags & _BDF_GLYPHS ) )
+        {
+          /* Error happened while parsing header. */
+          FT_ERROR(( "bdf_load_font: " ERRMSG2, lineno ));
+          error = BDF_Err_Corrupted_Font_Header;
+          goto Exit;
+        }
+        else
+        {
+          /* Error happened when parsing glyphs. */
+          FT_ERROR(( "bdf_load_font: " ERRMSG3, lineno ));
+          error = BDF_Err_Corrupted_Font_Glyphs;
+          goto Exit;
+        }
+      }
+    }
+
+    if ( p->font != 0 )
+    {
+      /* Make sure the comments are NULL terminated if they exist. */
+      memory = p->font->memory;
+
+      if ( p->font->comments_len > 0 )
+      {
+        if ( FT_RENEW_ARRAY( p->font->comments,
+                             p->font->comments_len,
+                             p->font->comments_len + 1 ) )
+          goto Fail;
+
+        p->font->comments[p->font->comments_len] = 0;
+      }
+    }
+    else if ( error == BDF_Err_Ok )
+      error = BDF_Err_Invalid_File_Format;
+
+    *font = p->font;
+
+  Exit:
+    if ( p )
+    {
+      _bdf_list_done( &p->list );
+
+      memory = extmemory;
+
+      FT_FREE( p );
+    }
+
+    return error;
+
+  Fail:
+    bdf_free_font( p->font );
+
+    memory = extmemory;
+
+    FT_FREE( p->font );
+
+    goto Exit;
+  }
+
+
+  FT_LOCAL_DEF( void )
+  bdf_free_font( bdf_font_t*  font )
+  {
+    bdf_property_t*  prop;
+    unsigned long    i;
+    bdf_glyph_t*     glyphs;
+    FT_Memory        memory;
+
+
+    if ( font == 0 )
+      return;
+
+    memory = font->memory;
+
+    FT_FREE( font->name );
+
+    /* Free up the internal hash table of property names. */
+    if ( font->internal )
+    {
+      hash_free( (hashtable *)font->internal, memory );
+      FT_FREE( font->internal );
+    }
+
+    /* Free up the comment info. */
+    FT_FREE( font->comments );
+
+    /* Free up the properties. */
+    for ( i = 0; i < font->props_size; i++ )
+    {
+      if ( font->props[i].format == BDF_ATOM )
+        FT_FREE( font->props[i].value.atom );
+    }
+
+    FT_FREE( font->props );
+
+    /* Free up the character info. */
+    for ( i = 0, glyphs = font->glyphs;
+          i < font->glyphs_used; i++, glyphs++ )
+    {
+      FT_FREE( glyphs->name );
+      FT_FREE( glyphs->bitmap );
+    }
+
+    for ( i = 0, glyphs = font->unencoded; i < font->unencoded_used;
+          i++, glyphs++ )
+    {
+      FT_FREE( glyphs->name );
+      FT_FREE( glyphs->bitmap );
+    }
+
+    FT_FREE( font->glyphs );
+    FT_FREE( font->unencoded );
+
+    /* Free up the overflow storage if it was used. */
+    for ( i = 0, glyphs = font->overflow.glyphs;
+          i < font->overflow.glyphs_used; i++, glyphs++ )
+    {
+      FT_FREE( glyphs->name );
+      FT_FREE( glyphs->bitmap );
+    }
+
+    FT_FREE( font->overflow.glyphs );
+
+    /* bdf_cleanup */
+    hash_free( &(font->proptbl), memory );
+
+    /* Free up the user defined properties. */
+    for ( prop = font->user_props, i = 0;
+          i < font->nuser_props; i++, prop++ )
+    {
+      FT_FREE( prop->name );
+      if ( prop->format == BDF_ATOM )
+        FT_FREE( prop->value.atom );
+    }
+
+    FT_FREE( font->user_props );
+
+    /* FREE( font ); */ /* XXX Fixme */
+  }
+
+
+  FT_LOCAL_DEF( bdf_property_t * )
+  bdf_get_font_property( bdf_font_t*  font,
+                         const char*  name )
+  {
+    hashnode  hn;
+
+
+    if ( font == 0 || font->props_size == 0 || name == 0 || *name == 0 )
+      return 0;
+
+    hn = hash_lookup( name, (hashtable *)font->internal );
+
+    return hn ? ( font->props + hn->data ) : 0;
+  }
+
+
+/* END */