JehanneOS/mksh
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commit jaredy's fix as well as a fix of mine (fed back to jaredy)

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now passes 193 tests
This commit is contained in:
tg 2004-11-26 15:43:53 +00:00
parent 5cb41399fe
commit 9fec84ac8e
1 changed files with 18 additions and 5 deletions
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23
eval.c
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@ -1,5 +1,5 @@
/** $MirBSD: eval.c,v 1.6 2004/10/28 11:53:41 tg Exp $ */
/* $OpenBSD: eval.c,v 1.14 2003/11/10 21:26:39 millert Exp $ */
/** $MirBSD: eval.c,v 1.7 2004/11/26 15:43:53 tg Exp $ */
/* $OpenBSD: eval.c,v 1.15 2004/11/25 04:36:47 jaredy Exp $ */
/*
* Expansion - quoting, separation, substitution, globbing
@ -10,7 +10,7 @@
#include "ksh_dir.h"
#include "ksh_stat.h"
__RCSID("$MirBSD: eval.c,v 1.6 2004/10/28 11:53:41 tg Exp $");
__RCSID("$MirBSD: eval.c,v 1.7 2004/11/26 15:43:53 tg Exp $");
/*
* string expansion
@ -37,6 +37,7 @@ typedef struct Expand {
#define XARG 3 /* expanding $*, $@ */
#define XCOM 4 /* expanding $() */
#define XNULLSUB 5 /* "$@" when $# is 0 (don't generate word) */
#define XSUBMID 6 /* middle of expanding ${} */
/* States used for field splitting */
#define IFS_WORD 0 /* word has chars (or quotes) */
@ -273,7 +274,7 @@ expand(char *cp, XPtrV *wp, int f)
/* format is:
* OSUBST [{x] plain-variable-part \0
* compiled-word-part CSUBST [}x]
* This is were all syntax checking gets done...
* This is where all syntax checking gets done...
*/
{
char *varname = ++sp; /* skip the { or x (}) */
@ -472,6 +473,7 @@ expand(char *cp, XPtrV *wp, int f)
continue;
case XSUB:
case XSUBMID:
if ((c = *x.str++) == 0) {
type = XBASE;
if (f&DOBLANK)
@ -554,7 +556,7 @@ expand(char *cp, XPtrV *wp, int f)
* doesn't do this, but POSIX does).
*/
if (word == IFS_WORD
|| (!ctype(c, C_IFSWS) && (c || word == IFS_NWS)))
|| (!ctype(c, C_IFSWS) && word == IFS_NWS))
{
char *p;
@ -585,6 +587,17 @@ expand(char *cp, XPtrV *wp, int f)
if (word != IFS_NWS)
word = ctype(c, C_IFSWS) ? IFS_WS : IFS_NWS;
} else {
if (type == XSUB) {
if (word == IFS_NWS && Xlength(ds, dp) == 0) {
char *p = strdup("");
if (p == NULL)
internal_errorf(1, "unable "
"to allocate memory");
XPput(*wp, p);
}
type = XSUBMID;
}
/* age tilde_ok info - ~ code tests second bit */
tilde_ok <<= 1;
/* mark any special second pass chars */