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authorSergey Poznyakoff <gray@gnu.org.ua>2016-07-12 09:41:15 (GMT)
committer Sergey Poznyakoff <gray@gnu.org.ua>2016-07-12 11:34:16 (GMT)
commit89f200b55b309aa67c1fbfc11d4de211725348f4 (patch) (side-by-side diff)
tree39e2e43f29766cbebbdf61f160b5d062ea63c996 /src/input-std.c
parente8cad816f36b1cad11bb67c96f0ce878cf30844e (diff)
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Line-editing support in gdbmtool
* configure.ac: Check if GNU Readline is available. * src/Makefile.am: Add new files. * src/input-rl.c: New file. * src/input-std.c: New file. * src/gdbmtool.c (handler_param): Move declaration to the header file. (quit_handler): Call input_done. (command_tab): Add the "history" command. (command_generator): New function. (slist_new_s, slist_new_l) (slist_insert): New functions. (main): Call input_init and input_done. * src/gdbmtool.h: New protos. * src/gram.y: Use slist_insert to construct string lists. * src/lex.l (read_input): Remove. Use input_read instead. (print_prompt_at_bol): New function. (print_prompt): Remove. (make_prompt): New function. * NEWS: Document changes. * README: Document readline support. * doc/gdbm.texi: Document line editing in gdbmtool. * doc/gdbmtool.1: Likewise.
Diffstat (limited to 'src/input-std.c') (more/less context) (ignore whitespace changes)
-rw-r--r--src/input-std.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/src/input-std.c b/src/input-std.c
new file mode 100644
index 0000000..4508368
--- a/dev/null
+++ b/src/input-std.c
@@ -0,0 +1,43 @@
+/* This file is part of GDBM, the GNU data base manager.
+ Copyright (C) 2016 Free Software Foundation, Inc.
+
+ GDBM 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.
+
+ GDBM 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 GDBM. If not, see <http://www.gnu.org/licenses/>. */
+
+#include "gdbmtool.h"
+
+ssize_t
+input_read (FILE *fp, char *buf, size_t size)
+{
+ if (interactive)
+ {
+ print_prompt_at_bol ();
+ if (fgets (buf, size, fp) == NULL)
+ return 0;
+ return strlen (buf);
+ }
+ return fread (buf, 1, size, fp);
+}
+
+void
+input_init (void)
+{
+ /* nothing */
+}
+
+void
+input_done (void)
+{
+ /* nothing */
+}
+

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