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diff --git a/Build/source/texk/web2c/luatexdir/tex/stringpool.h b/Build/source/texk/web2c/luatexdir/tex/stringpool.h
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+/* stringpool.h
+
+ Copyright 2009 Taco Hoekwater <taco@luatex.org>
+
+ This file is part of LuaTeX.
+
+ LuaTeX 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 2 of the License, or (at your
+ option) any later version.
+
+ LuaTeX 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 Lesser General Public
+ License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with LuaTeX; if not, see <http://www.gnu.org/licenses/>. */
+
+/* $Id: stringpool.h 3395 2010-01-27 11:40:08Z taco $ */
+
+#ifndef STRINGPOOL_H
+# define STRINGPOOL_H
+
+/* Both lua and tex strings can contains null, but C strings cannot, so: */
+
+typedef struct {
+ unsigned char *s;
+ size_t l;
+} lstring;
+
+typedef struct {
+ const char *s;
+ size_t l;
+} const_lstring;
+
+extern lstring *string_pool;
+
+extern str_number str_ptr;
+extern str_number init_str_ptr;
+
+# define STRING_OFFSET 0x200000
+# define STRING_OFFSET_BITS 21
+
+# define get_nullstr() STRING_OFFSET
+
+# define biggest_char 1114111
+# define number_chars 1114112
+# define special_char 1114113 /* |biggest_char+2| */
+
+/*
+ Several of the elementary string operations are performed using
+ macros instead of procedures, because many of the
+ operations are done quite frequently and we want to avoid the
+ overhead of procedure calls. For example, here is
+ a simple macro that computes the length of a string.
+*/
+
+# define utf8_size(a) (a>0xFFFF ? 4 : (a>0x7FF ? 3 : (a>0x7F? 2 : 1)))
+
+# define str_length(a) string_pool[(a)-STRING_OFFSET].l
+# define str_string(a) string_pool[(a)-STRING_OFFSET].s
+# define str_lstring(a) string_pool[(a)-STRING_OFFSET]
+
+/* Strings are created by appending character codes to |str_pool|.
+ The |append_char| macro, defined here, does not check to see if the
+ value of |pool_ptr| has gotten too high; this test is supposed to be
+ made before |append_char| is used. There is also a |flush_char|
+ macro, which erases the last character appended.
+
+ To test if there is room to append |l| more characters to |str_pool|,
+ we shall write |str_room(l)|, which aborts \TeX\ and gives an
+ apologetic error message if there isn't enough room.
+*/
+
+/* The length of the current string is called |cur_length|: */
+
+extern unsigned char *cur_string;
+extern unsigned cur_length;
+extern unsigned cur_string_size;
+extern unsigned pool_size;
+
+# define EXTRA_STRING 500
+
+/* put |ASCII_code| \# at the end of |str_pool| */
+# define append_char(A) do { \
+ if (cur_string==NULL) reset_cur_string(); \
+ else str_room(1); \
+ cur_string[cur_length++]=(unsigned char)(A); \
+ } while (0)
+
+# define str_room(wsize) do { \
+ unsigned nsize; \
+ if ((cur_length+wsize) > cur_string_size) { \
+ nsize = cur_string_size + cur_string_size / 5 + EXTRA_STRING; \
+ if (nsize < (unsigned)(wsize)) { \
+ nsize = wsize + EXTRA_STRING; \
+ } \
+ cur_string = (unsigned char *) xreallocarray(cur_string, unsigned char, nsize); \
+ memset (cur_string+cur_length,0,nsize-cur_length); \
+ cur_string_size = nsize; \
+ } \
+ } while (0)
+
+# define flush_char() --cur_length /* forget the last character in the pool */
+
+extern str_number make_string(void);
+extern boolean str_eq_buf(str_number s, int k);
+extern boolean str_eq_str(str_number s, str_number t);
+extern boolean str_eq_cstr(str_number, const char *, size_t);
+extern boolean get_strings_started(void);
+extern void reset_cur_string(void);
+
+# define save_cur_string() (cur_length>0 ? make_string() : 0)
+
+# define restore_cur_string(u) if (u!=0) { \
+ unsigned l = (unsigned)str_length(u); \
+ reset_cur_string(); \
+ str_room(l); \
+ memcpy(cur_string, str_string(u),l); \
+ cur_length = l; \
+ flush_str(u); \
+ u=0; \
+ }
+
+
+extern str_number search_string(str_number search);
+extern int pool_to_unichar(unsigned char *t);
+
+extern unsigned char *uni2str(unsigned);
+extern unsigned str2uni(const unsigned char *);
+
+extern str_number maketexstring(const char *);
+extern str_number maketexlstring(const char *, size_t);
+extern void append_string(const unsigned char *s, unsigned l);
+
+extern char *makecstring(int);
+extern char *makeclstring(int, size_t *);
+
+extern int dump_string_pool(void);
+extern int undump_string_pool(void);
+
+extern void init_string_pool_array(unsigned s);
+extern void flush_str(str_number s);
+
+#endif