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fixup tilde expansion comments; revert a few bogus dirsep changes 

cf. <Pine.BSM.4.64L.1703112129500.29506@herc.mirbsd.org>
This commit is contained in:
tg 2017-03-11 22:49:56 +00:00
parent a112d69c56
commit bc4397e28a
3 changed files with 15 additions and 26 deletions
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8
edit.c
View File

@ -5,7 +5,7 @@
/*-
* Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
* 2011, 2012, 2013, 2014, 2015, 2016
* 2011, 2012, 2013, 2014, 2015, 2016, 2017
* mirabilos <m@mirbsd.org>
*
* Provided that these terms and disclaimer and all copyright notices
@ -28,7 +28,7 @@
#ifndef MKSH_NO_CMDLINE_EDITING
__RCSID("$MirOS: src/bin/mksh/edit.c,v 1.312 2016/11/11 23:48:28 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/edit.c,v 1.313 2017/03/11 22:49:54 tg Exp $");
/*
* in later versions we might use libtermcap for this, but since external
@ -339,7 +339,7 @@ x_glob_hlp_tilde_and_rem_qchar(char *s, bool magic_flag)
* and if so, discern "~foo/bar" and "~/baz" from "~blah";
* if we have a directory part (the former), try to expand
*/
if (*s == '~' && (cp = mksh_sdirsep(s)) != NULL) {
if (*s == '~' && (cp = /* not sdirsep */ strchr(s, '/')) != NULL) {
/* ok, so split into "~foo"/"bar" or "~"/"baz" */
*cp++ = 0;
/* try to expand the tilde */
@ -658,7 +658,7 @@ x_cf_glob(int *flagsp, const char *buf, int buflen, int pos, int *startp,
}
}
if (*toglob == '~' && !mksh_vdirsep(toglob)) {
if (*toglob == '~' && /* not vdirsep */ !vstrchr(toglob, '/')) {
/* neither for '~foo' (but '~foo/bar') */
*flagsp |= XCF_IS_NOSPACE;
goto dont_add_glob;

17
eval.c
View File

@ -23,7 +23,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/eval.c,v 1.197 2017/02/17 22:40:12 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/eval.c,v 1.198 2017/03/11 22:49:55 tg Exp $");
/*
* string expansion
@ -625,13 +625,12 @@ expand(
break;
case '=':
/*
* Enabling tilde expansion
* after :s here is
* non-standard ksh, but is
* consistent with rules for
* other assignments. Not
* sure what POSIX thinks of
* this.
* Tilde expansion for string
* variables in POSIX mode is
* governed by Austinbug 351.
* In non-POSIX mode historic
* ksh behaviour (enable it!)
* us followed.
* Not doing tilde expansion
* for integer variables is a
* non-POSIX thing - makes
@ -1717,7 +1716,7 @@ maybe_expand_tilde(const char *p, XString *dsp, char **dpp, bool isassign)
Xinit(ts, tp, 16, ATEMP);
/* : only for DOASNTILDE form */
while (p[0] == CHAR && !mksh_cdirsep(p[1]) &&
while (p[0] == CHAR && /* not cdirsep */ p[1] != '/' &&
(!isassign || p[1] != ':')) {
Xcheck(ts, tp);
*tp++ = p[1];

16
syn.c
View File

@ -2,7 +2,7 @@
/*-
* Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009,
* 2011, 2012, 2013, 2014, 2015, 2016
* 2011, 2012, 2013, 2014, 2015, 2016, 2017
* mirabilos <m@mirbsd.org>
*
* Provided that these terms and disclaimer and all copyright notices
@ -23,7 +23,7 @@
#include "sh.h"
__RCSID("$MirOS: src/bin/mksh/syn.c,v 1.115 2016/09/01 12:59:12 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/syn.c,v 1.116 2017/03/11 22:49:56 tg Exp $");
struct nesting_state {
int start_token; /* token than began nesting (eg, FOR) */
@ -937,17 +937,7 @@ compile(Source *s, bool skiputf8bom)
return (outtree);
}
/*-
* This kludge exists to take care of sh/AT&T ksh oddity in which
* the arguments of alias/export/readonly/typeset have no field
* splitting, file globbing, or (normal) tilde expansion done.
* AT&T ksh seems to do something similar to this since
* $ touch a=a; typeset a=[ab]; echo "$a"
* a=[ab]
* $ x=typeset; $x a=[ab]; echo "$a"
* a=a
* $
*/
/* lexical analysis for declaration utilities */
int
assign_command(const char *s, bool docommand)
{