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transform: fix replacement of particular pattern instance

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This fixes handling of expressions like 's/s/@/2'.

* lib/transform.c (_single_transform_name_to_slist): Avoid duplicating
initial prefix if replace is not needed.
This commit is contained in:
Sergey Poznyakoff 2021-08-28 10:14:22 +03:00
parent 84d3767491
commit 9f0391c84b
1 changed files with 3 additions and 3 deletions
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6
lib/transform.c
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@ -572,9 +572,6 @@ _single_transform_name_to_slist (struct transform *tf, gray_slist_t slist,
disp = rmp[0].rm_eo;
if (rmp[0].rm_so)
gray_slist_append (slist, input, rmp[0].rm_so);
nmatches++;
if (tf->match_number && nmatches < tf->match_number)
{
@ -583,6 +580,9 @@ _single_transform_name_to_slist (struct transform *tf, gray_slist_t slist,
continue;
}
if (rmp[0].rm_so)
gray_slist_append (slist, input, rmp[0].rm_so);
for (segm = tf->repl_head; segm; segm = segm->next)
{
switch (segm->type)