Import of readline 4.3.

Non-readline modified files:

src/gdb/ChangeLog src/gdb/defs.h src/gdb/cli/cli-cmds.c
src/gdb/cli/cli-setshow.c src/gdb/tui/ChangeLog
src/gdb/tui/tuiWin.c

In readline directory:

        * compat.c, mbutil.c, misc.c, rlmbutil.h, rltypedefs.h,
        text.c, doc/history.0, doc/history.3, support/wcwidth.c,
        examples/readlinebuf.h, examples/rlcat.c: New files.

        * CHANGELOG, CHANGES, INSTALL,  MANIFEST, Makefile.in, README,
        aclocal.m4, ansi_stdlib.h, bind.c, callback.c, chardefs.h,
        complete.c, config.h.in, configure, configure.in, display.c,
        emacs_keymap.c, funmap.c, histexpand.c, histfile.c, histlib.h,
        history.c, history.h, histsearch.c, input.c, isearch.c,
        keymaps.c, keymaps.h, kill.c, macro.c, nls.c, parens.c,
        posixdir.h, readline.c, readline.h, rlconf.h, rldefs.h,
        rlprivate.h, rlshell.h, rlstdc.h, rltty.c, savestring.c,
        search.c, shell.c, signals.c, terminal.c, tilde.c, tilde.h,
        undo.c, util.c, vi_keymap.c, vi_mode.c, xmalloc.c, xmalloc.h,
        doc/Makefile.in, doc/hist.texinfo, doc/hstech.texinfo,
        doc/hsuser.texinfo, doc/manvers.texinfo, doc/readline.3,
        doc/rlman.texinfo, doc/rltech.texinfo, doc/rluser.texinfo
        doc/rluserman.texinfo, doc/texi2dvi, doc/texi2html,
        shlib/Makefile.in, support/install.sh, support/mkdirs,
        support/mkdist, support/shlib-install, support/shobj-conf,
        examples/Inputrc, examples/Makefile.in, examples/fileman.c,
        examples/histexamp.c, examples/manexamp.c, examples/rl.c,
        examples/rlfe.c, examples/rltest.c, examples/rlversion.c:
        Modified files.

1 files changed, 139 insertions, 0 deletions

diff --git a/readline/examples/readlinebuf.h b/readline/examples/readlinebuf.h
new file mode 100644
index 0000000..91ef4d6
--- /dev/null
+++ b/readline/examples/readlinebuf.h
@@ -0,0 +1,139 @@
+/*******************************************************************************
+ * $Revision$
+ * $Date$
+ * $Author$
+ *
+ * Contents: A streambuf which uses the GNU readline library for line I/O
+ * (c) 2001 by Dimitris Vyzovitis [vyzo@media.mit.edu]
+ *
+ * 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 2 of the License, 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ ******************************************************************************/
+
+#ifndef _READLINEBUF_H_
+#define _READLINEBUF_H_
+
+#include <iostream>
+#include <cstring>
+#include <cassert>
+#include <cstdlib>
+#include <cstdio>
+
+#include <readline/readline.h>
+#include <readline/history.h>
+
+#if (defined __GNUC__) && (__GNUC__ < 3)
+#include <streambuf.h>
+#else
+#include <streambuf>
+using std::streamsize;
+using std::streambuf;
+#endif
+
+class readlinebuf : public streambuf {
+public:
+#if (defined __GNUC__) && (__GNUC__ < 3)
+	typedef char char_type;
+	typedef int int_type;
+	typedef streampos pos_type;
+	typedef streamoff off_type;
+#endif
+	static const int_type eof = EOF; // this is -1
+	static const int_type not_eof = 0;
+
+private:
+	const char* prompt_;
+	bool history_;
+	char* line_;
+	int low_;
+	int high_;
+
+protected:
+		
+	virtual int_type showmanyc() const { return high_ - low_; }
+		
+	virtual streamsize xsgetn( char_type* buf, streamsize n ) {
+		int rd = n > (high_ - low_)? (high_ - low_) : n;
+		memcpy( buf, line_, rd );
+		low_ += rd;
+			
+		if ( rd < n ) {
+			low_ = high_ = 0;
+			free( line_ ); // free( NULL ) is a noop
+			line_ = readline( prompt_ );
+			if ( line_ ) {
+				high_ = strlen( line_ );
+				if ( history_ && high_ ) add_history( line_ );
+				rd += xsgetn( buf + rd, n - rd );
+			}
+		}
+			
+		return rd; 
+	}
+		
+	virtual int_type underflow() {
+		if ( high_ == low_ ) {
+			low_ = high_ = 0;
+			free( line_ ); // free( NULL ) is a noop
+			line_ = readline( prompt_ );
+			if ( line_ ) {
+				high_ = strlen( line_ );
+				if ( history_ && high_ ) add_history( line_ );
+			}
+		}
+			
+		if ( low_ < high_ ) return line_[low_];
+		else return eof;
+	}
+		
+	virtual int_type uflow() {
+		int_type c = underflow();
+		if ( c != eof ) ++low_;
+		return c;
+	}
+		
+	virtual int_type pbackfail( int_type c = eof ) {
+		if ( low_ > 0 )	--low_;
+		else if ( c != eof ) {
+			if ( high_ > 0 ) {
+				char* nl = (char*)realloc( line_, high_ + 1 );
+				if ( nl ) {
+					line_ = (char*)memcpy( nl + 1, line_, high_ );
+					high_ += 1;
+					line_[0] = char( c );
+				} else return eof;
+			} else {
+				assert( !line_ );
+				line_ = (char*)malloc( sizeof( char ) );
+				*line_ = char( c );
+				high_ = 1;
+			}
+		} else return eof;
+
+		return not_eof;
+	}
+ 		
+public:
+	readlinebuf( const char* prompt = NULL, bool history = true ) 
+		: prompt_( prompt ), history_( history ),
+		  line_( NULL ), low_( 0 ), high_( 0 ) {
+		setbuf( 0, 0 );
+	}
+		
+		
+};
+
+#endif