8000 re_replace can't handle same sub-pattern twice · Issue #9 · SWI-Prolog/packages-pcre · GitHub
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re_replace can't handle same sub-pattern twice #9

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kamahen opened this issue Jan 27, 2022 · 1 comment
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re_replace can't handle same sub-pattern twice #9

kamahen opened this issue Jan 27, 2022 · 1 comment

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@kamahen
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kamahen commented Jan 27, 2022 
?- re_replace("(.)"/g, "[$1][$1]", "abcd", Y).
ERROR: Duplicate key: 1
ERROR: In:
ERROR:   [13] dict_pairs(_6438,_6440,[1-_6454,...])
ERROR:   [11] pcre:compile_replacement("[$1][$1]",r(["["|...],_6498)) at /usr/lib/swi-prolog/library/pcre.pl:398
ERROR:   [10] pcre:re_replace("(.)"/g,"[$1][$1]","abcd",_6540) at /usr/lib/swi-prolog/library/pcre.pl:321
ERROR:    [9] toplevel_call(user:user: ...) at /usr/lib/swi-prolog/boot/toplevel.pl:1135

This should work, e.g.:

$ python3.10
>>> import re
>>> re.sub(r'(.)', r'[\1\1]', 'abcd')
'[aa][bb][cc][dd]'
@kamahen
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kamahen commented Jan 27, 2022

Duplicate of Issue #6

@kamahen kamahen closed this as completed Jan 27, 2022
@kamahen kamahen mentioned this issue Jun 1, 2022
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