43 lines
1.2 KiB
Diff
43 lines
1.2 KiB
Diff
diff --git a/parse.y b/parse.y
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--- a/parse.y
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+++ b/parse.y
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@@ -4255,7 +4255,8 @@ xparse_dolparen (base, string, indp, flags)
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save_parser_state (&ps);
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save_input_line_state (&ls);
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-
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+ /* avoid echoing every substitution again */
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+ echo_input_at_read = 0;
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#if defined (ALIAS) || defined (DPAREN_ARITHMETIC)
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pushed_string_list = (STRING_SAVER *)NULL;
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#endif
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diff --git a/subst.c b/subst.c
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--- a/subst.c
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+++ b/subst.c
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@@ -10222,6 +10222,7 @@ param_expand (string, sindex, quoted, expanded_something,
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WORD_LIST *list, *l;
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WORD_DESC *tdesc, *ret;
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int tflag, nullarg;
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+ int old_echo_input;
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/*itrace("param_expand: `%s' pflags = %d", string+*sindex, pflags);*/
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zindex = *sindex;
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@@ -10614,6 +10615,9 @@ arithsub:
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}
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comsub:
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+ old_echo_input = echo_input_at_read;
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+ /* avoid echoing every substitution again */
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+ echo_input_at_read = 0;
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if (pflags & PF_NOCOMSUB)
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/* we need zindex+1 because string[zindex] == RPAREN */
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temp1 = substring (string, *sindex, zindex+1);
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@@ -10626,6 +10630,7 @@ comsub:
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}
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FREE (temp);
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temp = temp1;
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+ echo_input_at_read = old_echo_input;
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break;
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/* Do POSIX.2d9-style arithmetic substitution. This will probably go
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