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+/* Declarations having to do with GNU Emacs syntax tables.
+   Copyright (C) 1985 Free Software Foundation, Inc.
+
+This file is part of GNU Emacs.
+
+GNU Emacs is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 1, or (at your option)
+any later version.
+
+GNU Emacs is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Emacs; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+
+extern Lisp_Object Qsyntax_table_p;
+extern Lisp_Object Fsyntax_table_p (), Fsyntax_table (), Fset_syntax_table ();
+
+/* The standard syntax table is stored where it will automatically
+   be used in all new buffers.  */
+#define Vstandard_syntax_table buffer_defaults.syntax_table
+
+/* A syntax table is a Lisp vector of length 0400, whose elements are integers.
+
+The low 8 bits of the integer is a code, as follows:
+*/
+
+enum syntaxcode
+  {
+    Swhitespace, /* for a whitespace character */
+    Spunct,      /* for random punctuation characters */
+    Sword,       /* for a word constituent */
+    Ssymbol,     /* symbol constituent but not word constituent */
+    Sopen,       /* for a beginning delimiter */
+    Sclose,      /* for an ending delimiter */
+    Squote,      /* for a prefix character like Lisp ' */
+    Sstring,     /* for a string-grouping character like Lisp " */
+    Smath,       /* for delimiters like $ in Tex. */
+    Sescape,     /* for a character that begins a C-style escape */
+    Scharquote,  /* for a character that quotes the following character */
+    Scomment,    /* for a comment-starting character */
+    Sendcomment, /* for a comment-ending character */
+    Smax         /* Upper bound on codes that are meaningful */
+  };
+
+#define SYNTAX(c) \
+  ((enum syntaxcode) (XINT (XVECTOR (current_buffer->syntax_table)->contents[c]) & 0377))
+
+/* The next 8 bits of the number is a character,
+ the matching delimiter in the case of Sopen or Sclose. */
+
+#define SYNTAX_MATCH(c) \
+  ((XINT (XVECTOR (current_buffer->syntax_table)->contents[c]) >> 8) & 0377)
+
+/* Then there are five single-bit flags that have the following meanings:
+  1. This character is the first of a two-character comment-start sequence.
+  2. This character is the second of a two-character comment-start sequence.
+  3. This character is the first of a two-character comment-end sequence.
+  4. This character is the second of a two-character comment-end sequence.
+  5. This character is a prefix, for backward-prefix-chars.
+ Note that any two-character sequence whose first character has flag 1
+  and whose second character has flag 2 will be interpreted as a comment start. */
+
+#define SYNTAX_COMSTART_FIRST(c) \
+  ((XINT (XVECTOR (current_buffer->syntax_table)->contents[c]) >> 16) & 1)
+
+#define SYNTAX_COMSTART_SECOND(c) \
+  ((XINT (XVECTOR (current_buffer->syntax_table)->contents[c]) >> 17) & 1)
+
+#define SYNTAX_COMEND_FIRST(c) \
+  ((XINT (XVECTOR (current_buffer->syntax_table)->contents[c]) >> 18) & 1)
+
+#define SYNTAX_COMEND_SECOND(c) \
+  ((XINT (XVECTOR (current_buffer->syntax_table)->contents[c]) >> 19) & 1)
+
+#define SYNTAX_PREFIX(c) \
+  ((XINT (XVECTOR (current_buffer->syntax_table)->contents[c]) >> 20) & 1)
+
+/* This array, indexed by a character, contains the syntax code which that
+ character signifies (as a char).  For example,
+ (enum syntaxcode) syntax_spec_code['w'] is Sword. */
+
+extern unsigned char syntax_spec_code[0400];
+
+/* Indexed by syntax code, give the letter that describes it. */
+
+extern char syntax_code_spec[13];