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- $ perl -e ' use re Debug => "EXECUTE"; $c=" _\n"; $c =~ /\s*\n/; print "\n\n"; $c =~ /\s+\n/ '
- Guessing start of match in sv for REx "\s*\n" against " _%n"
- Found floating substr "%n" at offset 8...
- start_shift: 0 check_at: 8 s: 0 endpos: 9
- Does not contradict STCLASS...
- Guessed: match at offset 0
- Matching REx "\s*\n" against " _%n"
- Matching stclass ANYOF{i}[\x09\x0a\x0c\x0d ][{non-utf8-latin1-all}{unicode_all}] against " _%n" (9 bytes)
- 0 <> < _%n> | 1:STAR(3)
- SPACE can match 7 times out of 2147483647...
- failed...
- 1 < > < _%n> | 1:STAR(3)
- SPACE can match 6 times out of 2147483647...
- failed...
- 2 < > < _%n> | 1:STAR(3)
- SPACE can match 5 times out of 2147483647...
- failed...
- 3 < > < _%n> | 1:STAR(3)
- SPACE can match 4 times out of 2147483647...
- failed...
- 4 < > < _%n> | 1:STAR(3)
- SPACE can match 3 times out of 2147483647...
- failed...
- 5 < > < _%n> | 1:STAR(3)
- SPACE can match 2 times out of 2147483647...
- failed...
- 6 < > < _%n> | 1:STAR(3)
- SPACE can match 1 times out of 2147483647...
- failed...
- 8 < _> <%n> | 1:STAR(3)
- SPACE can match 1 times out of 2147483647...
- 8 < _> <%n> | 3: EXACT <\n>(5)
- 9 < _%n> <> | 5: END(0)
- Match successful!
- Guessing start of match in sv for REx "\s+\n" against " _%n"
- Found floating substr "%n" at offset 8...
- start_shift: 1 check_at: 8 s: 0 endpos: 8
- Does not contradict STCLASS...
- Guessed: match at offset 0
- Matching REx "\s+\n" against " _%n"
- Matching stclass SPACE against " _" (8 bytes)
- 0 <> < _%n> | 1:PLUS(3)
- SPACE can match 7 times out of 2147483647...
- failed...
- Contradicts stclass... [regexec_flags]
- Match failed
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