[英]Issues with greediness in regex
In PHP, I'm matching the text here http://siba.thenetworksolution.it/allegati/H3018500D7FDDE9ACA05671F49F4F3746A69DAF96.1329514.pdf.txt with the following regex: 在PHP中,我将http://siba.thenetworksolution.it/allegati/H3018500D7FDDE9ACA05671F49F4F3746A69DAF96.1329514.pdf.txt中的文本与以下正则表达式进行匹配:
preg_match('#(.*(?s))(particella |particelle |p\.|part\.|p |part |mappale |mapp\.|mapp |n\.|\*)\s*(\d+[\d /\p{Pd}]*)($|.{0,20}(?s)(graffati|particella |particelle |p\.|.*part\.|p |part |mappale |mapp\.|mapp |n\.|subalterno |subalterni |sub\.|s\.|sub |s |\bcat\b|\bcategoria\b|\brendita\b|\bvani\b|\bconsistenza\b|\bR\.C\.\b))#i', $txt, $matches, PREG_OFFSET_CAPTURE, $offset)
with offset = 1155
(that is the offset of the word "foglio" in the text). offset = 1155
(即文本中“ foglio”一词的偏移量)。
I expected them to match the 454
(that is just after the offset) but it matches 57/1998
instead (that is many rows after). 我期望它们匹配
454
(仅在偏移量之后),但它匹配57/1998
(即之后的许多行)。
After some tests on regex101.com I discovered the issue is the carriage return between the prefix particella
and 454
, but I expected the \\s
to match line feeds. 在regex101.com上进行一些测试后,我发现问题是前缀
particella
和454
之间的回车,但是我希望\\s
与换行符匹配。
How I can correct the greediness so the regex will match the 454
? 我如何纠正贪婪,使正则表达式与
454
匹配?
Solved. 解决了。 There was a space after
particella
in the second group. 第二组中的
particella
后有一个空格。
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