Add small regex fix. Add support directory.

1 files changed, 0 insertions, 132 deletions

diff --git a/dfa.h b/dfa.h
deleted file mode 100644
index c68b4df7..00000000
--- a/dfa.h
+++ /dev/null
@@ -1,132 +0,0 @@
-/* dfa.h - declarations for GNU deterministic regexp compiler
-   Copyright (C) 1988, 1998, 2007, 2009-2016 Free Software Foundation, Inc.
-
-   This program 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 3, or (at your option)
-   any later version.
-
-   This program 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 this program; if not, write to the Free Software
-   Foundation, Inc.,
-   51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA */
-
-/* Written June, 1988 by Mike Haertel */
-
-#include <regex.h>
-#ifdef HAVE_STDBOOL_H
-#include <stdbool.h>
-#else
-#include "missing_d/gawkbool.h"
-#endif /* HAVE_STDBOOL_H */
-#include <stddef.h>
-
-#if 3 <= __GNUC__
-# define _GL_ATTRIBUTE_MALLOC __attribute__ ((__malloc__))
-#else
-# define _GL_ATTRIBUTE_MALLOC
-#endif
-
-struct localeinfo; /* See localeinfo.h.  */
-
-/* Element of a list of strings, at least one of which is known to
-   appear in any R.E. matching the DFA. */
-struct dfamust
-{
-  bool exact;
-  bool begline;
-  bool endline;
-  char *must;
-};
-
-/* The dfa structure. It is completely opaque. */
-struct dfa;
-
-/* Entry points. */
-
-/* Allocate a struct dfa.  The struct dfa is completely opaque.
-   The returned pointer should be passed directly to free() after
-   calling dfafree() on it. */
-extern struct dfa *dfaalloc (void) _GL_ATTRIBUTE_MALLOC;
-
-/* DFA options that can be ORed together, for dfasyntax's 4th arg.  */
-enum
-  {
-    /* ^ and $ match only the start and end of data, and do not match
-       end-of-line within data.  This is always false for grep, but
-       possibly true for other apps.  */
-    DFA_ANCHOR = 1 << 0,
-
-    /* '\0' in data is end-of-line, instead of the traditional '\n'.  */
-    DFA_EOL_NUL = 1 << 1
-  };
-
-/* Initialize or reinitialize a DFA.  This must be called before
-   any of the routines below.  The arguments are:
-   1. The DFA to operate on.
-   2. Information about the current locale.
-   3. Syntax bits described in regex.h.
-   4. Additional DFA options described above.  */
-extern void dfasyntax (struct dfa *, struct localeinfo const *,
-                       reg_syntax_t, int);
-
-/* Build and return the struct dfamust from the given struct dfa. */
-extern struct dfamust *dfamust (struct dfa const *);
-
-/* Free the storage held by the components of a struct dfamust. */
-extern void dfamustfree (struct dfamust *);
-
-/* Compile the given string of the given length into the given struct dfa.
-   Final argument is a flag specifying whether to build a searching or an
-   exact matcher. */
-extern void dfacomp (char const *, size_t, struct dfa *, bool);
-
-/* Search through a buffer looking for a match to the given struct dfa.
-   Find the first occurrence of a string matching the regexp in the
-   buffer, and the shortest possible version thereof.  Return a pointer to
-   the first character after the match, or NULL if none is found.  BEGIN
-   points to the beginning of the buffer, and END points to the first byte
-   after its end.  Note however that we store a sentinel byte (usually
-   newline) in *END, so the actual buffer must be one byte longer.
-   When ALLOW_NL is true, newlines may appear in the matching string.
-   If COUNT is non-NULL, increment *COUNT once for each newline processed.
-   Finally, if BACKREF is non-NULL set *BACKREF to indicate whether we
-   encountered a back-reference.  The caller can use this to decide
-   whether to fall back on a backtracking matcher.  */
-extern char *dfaexec (struct dfa *d, char const *begin, char *end,
-                      bool allow_nl, size_t *count, bool *backref);
-
-/* Return a superset for D.  The superset matches everything that D
-   matches, along with some other strings (though the latter should be
-   rare, for efficiency reasons).  Return a null pointer if no useful
-   superset is available.  */
-extern struct dfa *dfasuperset (struct dfa const *d) _GL_ATTRIBUTE_PURE;
-
-/* The DFA is likely to be fast.  */
-extern bool dfaisfast (struct dfa const *) _GL_ATTRIBUTE_PURE;
-
-/* Copy the syntax settings from one dfa instance to another.
-   Saves considerable computation time if compiling many regular expressions
-   based on the same setting.  */
-extern void dfacopysyntax (struct dfa *to, const struct dfa *from);
-
-/* Free the storage held by the components of a struct dfa. */
-extern void dfafree (struct dfa *);
-
-/* Error handling. */
-
-/* dfawarn() is called by the regexp routines whenever a regex is compiled
-   that likely doesn't do what the user wanted.  It takes a single
-   argument, a NUL-terminated string describing the situation.  The user
-   must supply a dfawarn.  */
-extern void dfawarn (const char *);
-
-/* dfaerror() is called by the regexp routines whenever an error occurs.  It
-   takes a single argument, a NUL-terminated string describing the error.
-   The user must supply a dfaerror.  */
-extern _Noreturn void dfaerror (const char *);