svn commit: trunk/busybox/shell: hush_test/hush-vars
vda at busybox.net
vda at busybox.net
Tue Jun 10 18:06:25 UTC 2008
Author: vda
Date: 2008-06-10 11:06:24 -0700 (Tue, 10 Jun 2008)
New Revision: 22284
Log:
hush: fix some fallout from prev commits, add testsuite
Added:
trunk/busybox/shell/hush_test/hush-vars/empty.right
trunk/busybox/shell/hush_test/hush-vars/empty.tests
Modified:
trunk/busybox/shell/hush.c
Changeset:
Modified: trunk/busybox/shell/hush.c
===================================================================
--- trunk/busybox/shell/hush.c 2008-06-10 18:05:12 UTC (rev 22283)
+++ trunk/busybox/shell/hush.c 2008-06-10 18:06:24 UTC (rev 22284)
@@ -1234,11 +1234,14 @@
static int o_save_ptr(o_string *o, int n)
{
char **list = (char**)o->data;
- int string_start = ((n + 0xf) & ~0xf) * sizeof(list[0]);
- int string_len = o->length - string_start;
+ int string_start;
+ int string_len;
if (!o->has_empty_slot) {
+ string_start = ((n + 0xf) & ~0xf) * sizeof(list[0]);
+ string_len = o->length - string_start;
if (!(n & 0xf)) { /* 0, 0x10, 0x20...? */
+ //bb_error_msg("list[%d]=%d string_start=%d (growing)", n, string_len, string_start);
/* list[n] points to string_start, make space for 16 more pointers */
o->maxlen += 0x10 * sizeof(list[0]);
o->data = xrealloc(o->data, o->maxlen + 1);
@@ -1246,8 +1249,12 @@
memmove(list + n + 0x10, list + n, string_len);
o->length += 0x10 * sizeof(list[0]);
}
+ //else bb_error_msg("list[%d]=%d string_start=%d", n, string_len, string_start);
} else {
/* We have empty slot at list[n], reuse without growth */
+ string_start = ((n+1 + 0xf) & ~0xf) * sizeof(list[0]); /* NB: n+1! */
+ string_len = o->length - string_start;
+ //bb_error_msg("list[%d]=%d string_start=%d (empty slot)", n, string_len, string_start);
o->has_empty_slot = 0;
}
list[n] = (char*)string_len;
@@ -2684,18 +2691,20 @@
arg = ++p;
} /* end of "while (SPECIAL_VAR_SYMBOL is found) ..." */
- o_debug_list("expand_vars_to_list[a]", output, n);
- o_addstr(output, arg, strlen(arg) + 1);
- o_debug_list("expand_vars_to_list[b]", output, n);
-//TESTME
- if (output->length - 1 == o_get_last_ptr(output, n)) { /* expansion is empty */
- if (!(ored_ch & 0x80)) { /* all vars were not quoted... */
- n--;
- /* allow to reuse list[n] later without re-growth */
- output->has_empty_slot = 1;
+ {
+ int len = strlen(arg);
+ if (len) {
+ o_debug_list("expand_vars_to_list[a]", output, n);
+ o_addstr(output, arg, len + 1);
+ o_debug_list("expand_vars_to_list[b]", output, n);
+ } else if (output->length == o_get_last_ptr(output, n)) { /* expansion is empty */
+ if (!(ored_ch & 0x80)) { /* all vars were not quoted... */
+ n--;
+ /* allow to reuse list[n] later without re-growth */
+ output->has_empty_slot = 1;
+ }
}
}
-
return n;
}
Added: trunk/busybox/shell/hush_test/hush-vars/empty.right
===================================================================
--- trunk/busybox/shell/hush_test/hush-vars/empty.right (rev 0)
+++ trunk/busybox/shell/hush_test/hush-vars/empty.right 2008-06-10 18:06:24 UTC (rev 22284)
@@ -0,0 +1,3 @@
+a b c d e f 1 2 3 4 5 6 7 8 9 0 A B C D E F
+a b c d e f 1 2 3 4 5 6 7 8 9 0 A B C D E F
+a b c d e f 1 2 3 4 5 6 7 8 9 0 A B C D E F
Added: trunk/busybox/shell/hush_test/hush-vars/empty.tests
===================================================================
--- trunk/busybox/shell/hush_test/hush-vars/empty.tests (rev 0)
+++ trunk/busybox/shell/hush_test/hush-vars/empty.tests 2008-06-10 18:06:24 UTC (rev 22284)
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+e=
+
+echo a b c d e f 1 2 3 4 5 6 7 8 9 0 A B C D E F
+echo a $e b $e c $e d $e e $e f $e 1 $e 2 $e 3 $e 4 $e 5 $e 6 $e 7 $e 8 $e 9 $e 0 $e A $e B $e C $e D $e E $e F
+echo $e a $e b $e c $e d $e e $e f $e 1 $e 2 $e 3 $e 4 $e 5 $e 6 $e 7 $e 8 $e 9 $e 0 $e A $e B $e C $e D $e E $e F
Property changes on: trunk/busybox/shell/hush_test/hush-vars/empty.tests
___________________________________________________________________
Name: svn:executable
+ *
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