DragonFlyBSD

When set, it binds <tab> to the libedit filename completion function.
Taken-From: NetBSD
---
bin/sh/histedit.c | 6 ++++
bin/sh/options.h | 4 ++-
bin/sh/sh.1 | 10 +++++++++
3 files changed, 19 insertions(+), 1 deletions(-)

diff --git a/bin/sh/histedit.c b/bin/sh/histedit.c
index 797685a..b0a8a6b 100644
--- a/bin/sh/histedit.c
+++ b/bin/sh/histedit.c
@ -67,6 +67,7 @ History hist; / history cookie /
EditLine *el; / editline cookie */
int displayhist;
static FILE *el_in, *el_out, *el_err;
+unsigned char _el_fn_complete(EditLine *, int);

STATIC char *fc_replace(const char *, char *, char *);

@ -124,6 +125,9 @ histedit(void)
if (hist)
el_set(el, EL_HIST, history, hist);
el_set(el, EL_PROMPT, getprompt);
+ el_set(el, EL_ADDFN, "rl-complete",
+ "ReadLine compatible completion function",
+ _el_fn_complete);
} else {
bad:
out2str("sh: can't initialize editing\n");
@ -140,6 +144,8 @ bad:
el_set(el, EL_EDITOR, "vi");
else if (Eflag)
el_set(el, EL_EDITOR, "emacs");
+ el_set(el, EL_BIND, "^I",
+ tabcomplete ? "rl-complete" : "ed-insert", NULL);
el_source(el, NULL);
}
} else {
diff --git a/bin/sh/options.h b/bin/sh/options.h
index 3ca1c99..c8ee216 100644
--- a/bin/sh/options.h
++ b/bin/sh/options.h
@ -67,8 +67,9 @ struct shparam {
#define privileged optlist¹⁵.val
#define Tflag optlist¹⁶.val
#define Pflag optlist¹⁷.val
#define tabcomplete optlist¹⁸.val

-#define NOPTS 18
+#define NOPTS 19

struct optent {
     const char *name;
@ -96,6 +97,7 @ struct optent optlist[NOPTS] = {
    { "privileged",    'p',    0 },
    { "trapsasync",    'T',    0 },
    { "physical",    'P',    0 },
+    { "tabcomplete", '\0',    0 },
 };
 #else
 extern struct optent optlist[NOPTS];
diff --git a/bin/sh/sh.1 b/bin/sh/sh.1
index 19ca003..062c26e 100644
--- a/bin/sh/sh.1
++ b/bin/sh/sh.1
@ -315,6 +315,12 @ Write each command
 variable)
 to standard error before it is executed.
 Useful for debugging.
.It "\ \ " Em tabcomplete
Enables filename completion in the command line editor.
+Typing a tab character will extend the current input word to match a
+filename.
+If more than one filename matches it is only extended to be the common prefix.
+Typing a second tab character will list all the matching names.
 .El
 .Pp
 The
@ -2279,3 +2285,7 @ was originally written by
 The
 .Nm
 utility does not recognize multibyte characters.
.Pp
+The characters generated by filename completion should probably be quoted
+to ensure that the filename is still valid after the input line has been
+processed.
-- 
1.6.0.6

--k1lZvvs/B4yU6o8G--