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make set_refflag an enum to get easier to understand code

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This commit is contained in:
tg 2011-06-21 21:11:21 +00:00
parent fab3be3584
commit c57f8ede17
3 changed files with 21 additions and 17 deletions
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18
funcs.c
View File

@ -38,7 +38,7 @@
#endif
#endif
__RCSID("$MirOS: src/bin/mksh/funcs.c,v 1.189 2011/06/11 03:14:49 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/funcs.c,v 1.190 2011/06/21 21:11:19 tg Exp $");
#if HAVE_KILLPG
/*
@ -64,8 +64,6 @@ __RCSID("$MirOS: src/bin/mksh/funcs.c,v 1.189 2011/06/11 03:14:49 tg Exp $");
static int c_android_lsmod(const char **);
#endif
extern uint8_t set_refflag;
/*
* A leading = means assignments before command are kept;
* a leading * means a POSIX special builtin;
@ -691,7 +689,8 @@ c_typeset(const char **wp)
flag = LCASEV;
break;
case 'n':
set_refflag = (builtin_opt.info & GI_PLUS) ? 2 : 1;
set_refflag = (builtin_opt.info & GI_PLUS) ?
SRF_DISABLE : SRF_ENABLE;
break;
/* export, readonly: POSIX -p flag */
case 'p':
@ -742,9 +741,10 @@ c_typeset(const char **wp)
builtin_opt.optind++;
}
if (func && (((fset|fclr) & ~(TRACE|UCASEV_AL|EXPORT)) || set_refflag)) {
if (func && (((fset|fclr) & ~(TRACE|UCASEV_AL|EXPORT)) ||
set_refflag != SRF_NOP)) {
bi_errorf("only -t, -u and -x options may be used with -f");
set_refflag = 0;
set_refflag = SRF_NOP;
return (1);
}
if (wp[builtin_opt.optind]) {
@ -769,7 +769,7 @@ c_typeset(const char **wp)
* are also set in this command
*/
if ((fset & (LJUST | RJUST | ZEROFIL | UCASEV_AL | LCASEV |
INTEGER | INT_U | INT_L)) || set_refflag)
INTEGER | INT_U | INT_L)) || set_refflag != SRF_NOP)
fclr |= ~fset & (LJUST | RJUST | ZEROFIL | UCASEV_AL |
LCASEV | INTEGER | INT_U | INT_L);
}
@ -801,11 +801,11 @@ c_typeset(const char **wp)
}
} else if (!typeset(wp[i], fset, fclr, field, base)) {
bi_errorf("%s: %s", wp[i], "not identifier");
set_refflag = 0;
set_refflag = SRF_NOP;
return (1);
}
}
set_refflag = 0;
set_refflag = SRF_NOP;
return (rv);
}

8
sh.h
View File

@ -151,7 +151,7 @@
#endif
#ifdef EXTERN
__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.477 2011/06/21 21:10:12 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.478 2011/06/21 21:11:20 tg Exp $");
#endif
#define MKSH_VERSION "R40 2011/06/12"
@ -1017,6 +1017,12 @@ struct tbl { /* table item */
#define arrayindex(vp) ((unsigned long)((vp)->flag & AINDEX ? \
(vp)->ua.index : 0))
EXTERN enum {
SRF_NOP,
SRF_ENABLE,
SRF_DISABLE
} set_refflag I__(SRF_NOP);
/* command types */
#define CNONE 0 /* undefined */
#define CSHELL 1 /* built-in */

12
var.c
View File

@ -26,7 +26,7 @@
#include <sys/sysctl.h>
#endif
__RCSID("$MirOS: src/bin/mksh/var.c,v 1.124 2011/06/21 21:08:50 tg Exp $");
__RCSID("$MirOS: src/bin/mksh/var.c,v 1.125 2011/06/21 21:11:21 tg Exp $");
/*-
* Variables
@ -53,8 +53,6 @@ static int getint(struct tbl *, mksh_ari_t *, bool);
static mksh_ari_t intval(struct tbl *);
static const char *array_index_calc(const char *, bool *, uint32_t *);
uint8_t set_refflag = 0;
/*
* create a new block for function calls and simple commands
* assume caller has allocated and set up e->loc
@ -179,7 +177,7 @@ array_index_calc(const char *n, bool *arrayp, uint32_t *valp)
*arrayp = false;
redo_from_ref:
p = skip_varname(n, false);
if (!set_refflag && (p != n) && ksh_isalphx(n[0])) {
if (set_refflag == SRF_NOP && (p != n) && ksh_isalphx(n[0])) {
struct tbl *vp;
char *vn;
@ -713,7 +711,7 @@ typeset(const char *var, Tflag set, Tflag clr, int field, int base)
mkssert(var != NULL);
mkssert(*var != 0);
if (*val == '[') {
if (set_refflag)
if (set_refflag != SRF_NOP)
errorf("%s: %s", var,
"reference variable can't be an array");
len = array_ref_len(val);
@ -760,9 +758,9 @@ typeset(const char *var, Tflag set, Tflag clr, int field, int base)
vp = (set&LOCAL) ? local(tvar, tobool(set & LOCAL_COPY)) :
global(tvar);
if (set_refflag == 2 && (vp->flag & (ARRAY|ASSOC)) == ASSOC)
if (set_refflag == SRF_DISABLE && (vp->flag & (ARRAY|ASSOC)) == ASSOC)
vp->flag &= ~ASSOC;
else if (set_refflag == 1) {
else if (set_refflag == SRF_ENABLE) {
if (vp->flag & ARRAY) {
struct tbl *a, *tmp;