hush: fix fallout from tweaking ${var:START:LEN} code
function old new delta expand_one_var 2344 2353 +9 Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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@ -6617,7 +6617,7 @@ static NOINLINE int expand_one_var(o_string *output, int n,
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exp_word = p;
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p = strchr(p, SPECIAL_VAR_SYMBOL);
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*p = '\0';
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vallen = strlen(val);
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vallen = val ? strlen(val) : 0;
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if (beg < 0) {
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/* negative beg counts from the end */
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beg = (arith_t)vallen + beg;
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@ -1,2 +1,3 @@
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w
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Ok:0
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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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