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50 lines
1.8 KiB
Diff
50 lines
1.8 KiB
Diff
From 883cdb79a440d0425766f67aaef0cabde0a5060e Mon Sep 17 00:00:00 2001
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From: Denys Vlasenko <vda.linux@googlemail.com>
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Date: Sat, 9 Jan 2021 08:27:37 +0100
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Subject: ash: fix ${unset_var/pattern/repl}
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function old new delta
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subevalvar 1349 1353 +4
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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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---
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shell/ash.c | 3 ++-
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shell/ash_test/ash-vars/var_bash_repl_empty_var.right | 1 +
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shell/ash_test/ash-vars/var_bash_repl_empty_var.tests | 2 ++
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3 files changed, 5 insertions(+), 1 deletion(-)
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diff --git a/shell/ash.c b/shell/ash.c
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index 37f9dd71b..76bf39ec2 100644
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--- a/shell/ash.c
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+++ b/shell/ash.c
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@@ -7015,7 +7015,8 @@ subevalvar(char *start, char *str, int strloc,
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slash_pos = -1;
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if (repl) {
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slash_pos = expdest - ((char *)stackblock() + strloc);
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- STPUTC('/', expdest);
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+ if (!(flag & EXP_DISCARD))
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+ STPUTC('/', expdest);
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//bb_error_msg("repl+1:'%s'", repl + 1);
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p = argstr(repl + 1, (flag & EXP_DISCARD) | EXP_TILDE); /* EXP_TILDE: echo "${v/x/~}" expands ~ ! */
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*repl = '/';
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diff --git a/shell/ash_test/ash-vars/var_bash_repl_empty_var.right b/shell/ash_test/ash-vars/var_bash_repl_empty_var.right
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index 892916783..cf8f088c1 100644
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--- a/shell/ash_test/ash-vars/var_bash_repl_empty_var.right
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+++ b/shell/ash_test/ash-vars/var_bash_repl_empty_var.right
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@@ -1,2 +1,3 @@
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+
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Ok:0
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diff --git a/shell/ash_test/ash-vars/var_bash_repl_empty_var.tests b/shell/ash_test/ash-vars/var_bash_repl_empty_var.tests
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index 73a43d38e..22aaba560 100755
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--- a/shell/ash_test/ash-vars/var_bash_repl_empty_var.tests
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+++ b/shell/ash_test/ash-vars/var_bash_repl_empty_var.tests
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@@ -1,3 +1,5 @@
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+unset v
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+echo ${v/*/w}
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v=''
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echo ${v/*/w}
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echo Ok:$?
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--
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cgit v1.2.1
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