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authorGravatar Denis Vlasenko <vda.linux@googlemail.com>2008-03-25 07:49:43 +0000
committerGravatar Denis Vlasenko <vda.linux@googlemail.com>2008-03-25 07:49:43 +0000
commit80591b0a000e88c284bd2ec355f27e19e1da7528 (patch)
tree101b48a0a2c5506e6c818717c8ef7d66b857d6a7 /shell
parentb02cea12129f1aa484701317f38466ec9e1c8462 (diff)
downloadbusybox-80591b0a000e88c284bd2ec355f27e19e1da7528.tar.gz
busybox-80591b0a000e88c284bd2ec355f27e19e1da7528.tar.bz2
ash: support for && and || in [[ expr ]]; add testsuite checks
Diffstat (limited to 'shell')
-rw-r--r--shell/ash.c54
-rw-r--r--shell/ash_test/ash-arith/arith-bash1.right2
-rwxr-xr-xshell/ash_test/ash-arith/arith-bash1.tests5
-rw-r--r--shell/ash_test/ash-vars/var_bash1.right14
-rwxr-xr-xshell/ash_test/ash-vars/var_bash1.tests18
-rw-r--r--shell/ash_test/ash-vars/var_bash2.right10
-rwxr-xr-xshell/ash_test/ash-vars/var_bash2.tests24
7 files changed, 115 insertions, 12 deletions
diff --git a/shell/ash.c b/shell/ash.c
index 9024d783d..3651929c2 100644
--- a/shell/ash.c
+++ b/shell/ash.c
@@ -8470,8 +8470,10 @@ static const struct builtincmd builtintab[] = {
{ BUILTIN_SPEC_REG ":", truecmd },
#if ENABLE_ASH_BUILTIN_TEST
{ BUILTIN_REGULAR "[", testcmd },
+#if ENABLE_ASH_BASH_COMPAT
{ BUILTIN_REGULAR "[[", testcmd },
#endif
+#endif
#if ENABLE_ASH_ALIAS
{ BUILTIN_REG_ASSG "alias", aliascmd },
#endif
@@ -8534,17 +8536,25 @@ static const struct builtincmd builtintab[] = {
{ BUILTIN_REGULAR "wait", waitcmd },
};
-
-#define COMMANDCMD (builtintab + 5 + \
- 2 * ENABLE_ASH_BUILTIN_TEST + \
- ENABLE_ASH_ALIAS + \
- ENABLE_ASH_JOB_CONTROL)
-#define EXECCMD (builtintab + 7 + \
- 2 * ENABLE_ASH_BUILTIN_TEST + \
- ENABLE_ASH_ALIAS + \
- ENABLE_ASH_JOB_CONTROL + \
- ENABLE_ASH_CMDCMD + \
- ENABLE_ASH_BUILTIN_ECHO)
+/* Should match the above table! */
+#define COMMANDCMD (builtintab + \
+ 2 + \
+ 1 * ENABLE_ASH_BUILTIN_TEST + \
+ 1 * ENABLE_ASH_BUILTIN_TEST * ENABLE_ASH_BASH_COMPAT + \
+ 1 * ENABLE_ASH_ALIAS + \
+ 1 * ENABLE_ASH_JOB_CONTROL + \
+ 3)
+#define EXECCMD (builtintab + \
+ 2 + \
+ 1 * ENABLE_ASH_BUILTIN_TEST + \
+ 1 * ENABLE_ASH_BUILTIN_TEST * ENABLE_ASH_BASH_COMPAT + \
+ 1 * ENABLE_ASH_ALIAS + \
+ 1 * ENABLE_ASH_JOB_CONTROL + \
+ 3 + \
+ 1 * ENABLE_ASH_CMDCMD + \
+ 1 + \
+ ENABLE_ASH_BUILTIN_ECHO + \
+ 1)
/*
* Search the table of builtin commands.
@@ -10048,6 +10058,9 @@ simplecmd(void)
union node *vars, **vpp;
union node **rpp, *redir;
int savecheckkwd;
+#if ENABLE_ASH_BASH_COMPAT
+ smallint double_brackets_flag = 0;
+#endif
args = NULL;
app = &args;
@@ -10058,13 +10071,30 @@ simplecmd(void)
savecheckkwd = CHKALIAS;
for (;;) {
+ int t;
checkkwd = savecheckkwd;
- switch (readtoken()) {
+ t = readtoken();
+ switch (t) {
+#if ENABLE_ASH_BASH_COMPAT
+ case TAND: /* "&&" */
+ case TOR: /* "||" */
+ if (!double_brackets_flag) {
+ tokpushback = 1;
+ goto out;
+ }
+ wordtext = (char *) (t == TAND ? "-a" : "-o");
+#endif
case TWORD:
n = stzalloc(sizeof(struct narg));
n->type = NARG;
/*n->narg.next = NULL; - stzalloc did it */
n->narg.text = wordtext;
+#if ENABLE_ASH_BASH_COMPAT
+ if (strcmp("[[", wordtext) == 0)
+ double_brackets_flag = 1;
+ else if (strcmp("]]", wordtext) == 0)
+ double_brackets_flag = 0;
+#endif
n->narg.backquote = backquotelist;
if (savecheckkwd && isassignment(wordtext)) {
*vpp = n;
diff --git a/shell/ash_test/ash-arith/arith-bash1.right b/shell/ash_test/ash-arith/arith-bash1.right
new file mode 100644
index 000000000..b261da18d
--- /dev/null
+++ b/shell/ash_test/ash-arith/arith-bash1.right
@@ -0,0 +1,2 @@
+1
+0
diff --git a/shell/ash_test/ash-arith/arith-bash1.tests b/shell/ash_test/ash-arith/arith-bash1.tests
new file mode 100755
index 000000000..b37b7302d
--- /dev/null
+++ b/shell/ash_test/ash-arith/arith-bash1.tests
@@ -0,0 +1,5 @@
+# checks for [[ ]]
+
+# && and ||
+[[ a && "" ]]; echo $?
+[[ a || "" ]]; echo $?
diff --git a/shell/ash_test/ash-vars/var_bash1.right b/shell/ash_test/ash-vars/var_bash1.right
new file mode 100644
index 000000000..c0a07699b
--- /dev/null
+++ b/shell/ash_test/ash-vars/var_bash1.right
@@ -0,0 +1,14 @@
+
+
+f
+bcdef
+abcdef
+abcdef
+bcde
+abcd
+abcd
+abcdef
+bcdef
+abcdef
+abcdef
+abcdef
diff --git a/shell/ash_test/ash-vars/var_bash1.tests b/shell/ash_test/ash-vars/var_bash1.tests
new file mode 100755
index 000000000..24d3c9a00
--- /dev/null
+++ b/shell/ash_test/ash-vars/var_bash1.tests
@@ -0,0 +1,18 @@
+var=abcdef
+
+echo ${var:7}
+echo ${var:6}
+echo ${var:5}
+echo ${var:1}
+echo ${var:0}
+echo ${var:-1}
+
+echo ${var:1:4}
+echo ${var:0:4}
+echo ${var::4}
+echo ${var:-1:4}
+
+echo ${var:1:7}
+echo ${var:0:7}
+echo ${var::7}
+echo ${var:-1:7}
diff --git a/shell/ash_test/ash-vars/var_bash2.right b/shell/ash_test/ash-vars/var_bash2.right
new file mode 100644
index 000000000..acba5c6fb
--- /dev/null
+++ b/shell/ash_test/ash-vars/var_bash2.right
@@ -0,0 +1,10 @@
+abc123xcba123
+abx123dcba123
+abx123dxba123
+abcx23dcba123
+abcxxxdcbaxxx
+abx
+xba123
+abx23
+abc23dcba123
+abcdcba
diff --git a/shell/ash_test/ash-vars/var_bash2.tests b/shell/ash_test/ash-vars/var_bash2.tests
new file mode 100755
index 000000000..29c526cef
--- /dev/null
+++ b/shell/ash_test/ash-vars/var_bash2.tests
@@ -0,0 +1,24 @@
+var=abc123dcba123
+
+echo ${var/d/x}
+echo ${var/c/x}
+echo ${var//c/x}
+echo ${var/[123]/x}
+echo ${var//[123]/x}
+echo ${var/c*/x}
+echo ${var/*c/x}
+
+# must match longest match: result is "abx23"
+echo ${var/c*1/x}
+
+# empty replacement - 2nd slash can be omitted
+echo ${var/[123]}
+echo ${var//[123]}
+
+### ash doesn't support
+### # match only at the beginning:
+### echo ${var/#a/x}
+### echo ${var/#b/x} # should not match
+### echo ${var//#b/x} # should not match
+### # match only at the end:
+### echo ${var/%3/x}