Php RegExp:将除youtube链接之外的所有链接与视频匹配
到目前为止:Php RegExp:将除youtube链接之外的所有链接与视频匹配,php,regex,youtube,regex-negation,negative-lookahead,Php,Regex,Youtube,Regex Negation,Negative Lookahead,到目前为止: (?(定义) #网址 (?(https?:)?\/\/) (? :[0-9]{2,5}) (?(?:com | net | info | biz | us | org)) (?(\/([a-z0-9+%-]\.?)+)*\/?) (?\?[a-z+&$\.-][a-z0-9;:@&%=+\/.-]*) (?\\\\[a-z.-][a-z0-9+$%\.-]*) (?([a-z0-9\-\.]+)\) #例外情况 (?(www\)?(youtube\.com | youtu\.be)
(?(定义)
#网址
(?(https?:)?\/\/)
(? :[0-9]{2,5})
(?(?:com | net | info | biz | us | org))
(?(\/([a-z0-9+%-]\.?)+)*\/?)
(?\?[a-z+&$\.-][a-z0-9;:@&%=+\/.-]*)
(?\\\\[a-z.-][a-z0-9+$%\.-]*)
(?([a-z0-9\-\.]+)\)
#例外情况
(?(www\)?(youtube\.com | youtu\.be)\/)
(?([\w-]{10,12})+)
(?\g?\g+(手表)?(\/embed\/\124;\?v=)+\g+)
)
#俘获
((?!\g+.*)
(\g?
\g
\g
\g?
\g?
\g?
\g?
))
我设法捕获了任何格式的链接,但出于某种原因,我的负面前瞻(见\g
)并没有将youtube视频链接从匹配列表中排除
应部分或完全匹配的行:
http:www.google.com/http://www.google.com/
://www.google.com/
www.google.com/
www.google.com:8000
www.google.com/?key=value
github.io
www.google.com/abc/def/ijk#123
www.google.com/abc/def/ijk?v=123123
www.google.com/abc/def/watch?v=1231
但是,它应该跳过(与包含youtube视频ID的行不匹配):
music.youtube.com/embed/y19EaW2X7ac
提前感谢您提供的帮助或任何提示,说明为什么消极前瞻不会否定行。在对其进行了一些处理之后,您诊断错误的方法不是youtube
函数的作用是注释掉它的其余部分,并查看它匹配的内容 关于前瞻性断言,您必须了解的是它们告诉您的一切
引擎是指在当前位置不可能有前面的东西。
它所做的只是将该位置提前1,然后重试。
直到到达断言传递的位置为止 因为您没有任何锚,所以它会将部分线路与其他线路匹配 所以,你必须通过这段文字来避免部分内容 有几种方法可以解决这个问题,但到目前为止,最简单的方法是匹配它
(*跳过)(*失败)
跳过它。引擎实际上并不匹配它,但它将当前位置置于刚刚过去的位置
然后再试一次 我已摆脱(或转换为群集)不必要的捕获组。
添加跳过/失败,将TLD转换为三元trie并格式化为
阅读目的 获取为您执行此操作并具有
用于正则表达式测试的内置引擎 还请注意,这个
(?:[\w-]{10,12})+
的粒度一次为10-12个字符。其中as[\w-]{10,}
将匹配>10个字符。它位于
功能中。用这个(?&yt_hash)+
调用它时,量词是多余的/无用的
因为它现在成功地跳过了对(?&yt\u视频)的调用中的一些内容。*
您必须调查该函数的各个部分,以了解为什么它没有
匹配,因此跳过其他 这里是压缩的 (2.5)目前,,([代码><代码>///////,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,((((((((((:::[cd[cd:::::::::[cd[cd[cd[[cd]cd]cd]cd]cd)以及e,e(e(?::::::::::::::::::::::::::::::::::::::::::::::::::::::::g[abd il np uwy]| h[kmnrtu]| i(?[delm]| n(?:fo | t)|[oq-t]| j(?[em]| o(?:bs)| p)| k[g imnprwyz]| l[a-cikr-vy]| m(?[ac hk]| lc | o(?:bi |[p-t]|u(当时是:修修修业的(当时是:修修修业的)(当时是:修修业的(当时是:卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖)的(v-z)款[v-z)|[v-z]|[v-z]本村)的(v-z)本村)和其他((当时当时当时是)的(当时当时是(当时当时是)的(当时当时是)的(当时是(当时是(当时是)和(当时是)的)和(中国(当时是(当时是(当时是)的)的)和(当时(当时是(当时是(当时)的)和(当时)的)存存存存存存存存存存)的)的)的,(,(,(,(,(,(,(当时)卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖卖|w[fs]|y[et]|z[amw])(?(\/(?:[a-z0-9+-]\.+)*/?)(?\?[a-z+&$\.-][a-z0-9;:@&%=+\/.-])(?\[a-z.-][a-z0-9+$%%.*)(?[a-z0-9+.+.-)(?)(?)(?:::)?(?:youtube\.com | youtu\.be)\/)(?:[\w-]{10,12})(?(?&proto)(?&yt\u域)+(?:watch)(?:\/embed\/| v=)+(?&yt-hash)+(((?&yt video)*(*跳过)(*失败)(?&proto)(?&subdomain)(?&tld)(?&port)(?&path)(?&query hash)(?&query)/ 扩大
(?i)
(?(DEFINE)
# URL
(?<proto> # (1 start)
(?: https?: )?
//
) # (1 end)
(?<port> : [0-9]{2,5} ) # (2)
(?<tld> # (3 start)
(?:
a
(?:
[cd]
| e
(?: ro )?
| [fgil-oqr]
| s
(?: ia )?
| [tuwxz]
)
| b
(?: [abd-h] | iz? | [jl-oq-tvwyz] )
| c
(?:
at?
| [cdf-ik-n]
| o
(?: m | op )?
| [ru-z]
)
| d [ejkmoz]
| e [ceghr-u]
| f [i-kmor]
| g [abd-il-np-uwy]
| h [kmnrtu]
| i
(?:
[delm]
| n
(?: fo | t )?
| [oq-t]
)
| j
(?:
[em]
| o
(?: bs )?
| p
)
| k [eg-imnprwyz]
| l [a-cikr-vy]
| m
(?:
[ac-hk]
| lc?
| [mn]
| o
(?: bi )?
| [p-t]
| u
(?: seum )?
| [v-z]
)
| n
(?:
a
(?: me )?
| c
| et?
| [fgilopruz]
)
| o
(?: m | rg )
| p
(?: [ae-hk-n] | ost | ro? | [stwy] )
| qa
| r [eosuw]
| s
(?:
[a-eg-or]
| t
(?: udio )?
| [uvx-z]
)
| t
(?:
[cd]
| el
| [f-hj-p]
| r
(?: avel )?
| [tvwz]
)
| u [agkmsyz]
| v [aceginu]
| w [fs]
| y [et]
| z [amw]
)
) # (3 end)
(?<path> # (4 start)
( # (5 start)
/
(?: [a-z0-9+%-] \.? )+
)* # (5 end)
/?
) # (4 end)
(?<query> \? [a-z+&$_.-] [a-z0-9;:@&%=+/.-]* ) # (6)
(?<hash> \# [a-z_.-] [a-z0-9+$%_.-]* ) # (7)
(?<subdomain> # (8 start)
[a-z0-9\-\.]+
\.
) # (8 end)
# Exceptions
(?<yt_domain> # (9 start)
(?: www\. )?
(?: youtube\.com | youtu\.be )
/
) # (9 end)
(?<yt_hash> # (10 start)
(?: [\w-]{10,12} )+
) # (10 end)
(?<yt_video> # (11 start)
(?&proto)? (?&yt_domain)+
(?: watch )?
(?: /embed/ | \?v= )+
(?&yt_hash)+
) # (11 end)
)
# Capture
( # (12 start)
(?&yt_video) .*
(*SKIP) (*FAIL)
|
(?&proto)?
(?&subdomain)
(?&tld)
(?&port)?
(?&path)?
(?&query)?
(?&hash)?
) # (12 end)
(?i)
(?(定义)
#网址
(?#(1开始)
(?:https?:)?
//
)#(一完)
(? : [0-9]{2,5} ) # (2)
(?#(3开始)
(?:
A.
(?:
[光盘]
|e
(?:ro)?
|[fgil-oqr]
|
(?:ia)?
|[tuwxz]
)
|b
(?:[abd-h]| iz?|[jl oq tvwyz])
|c
(?:
在
|[cdf-ik-n]
|o
(?:m|op)?
|[ru-z]
)
|d[ejkmoz]
|e[ceghr-u]
|f[i-kmor]
|g[abd il np uwy]
|h[kmnrtu]
|我
(?:
[delm]
|n
(?:fo|t)?
|[oq-t]
)
|j
(?:
[em]
|o
(?:bs)?
|p
)
|k[例如imnprwyz]
|l[a-cikr-vy]
|m
(?:
[交流香港]
|信用证?
|[mn]
|o
(?:bi)?
|[p-t]
|u
(?:seum)?
|[v-z]
)
|n
(?:
A.
(?:我)?
|c
|et?
|[fgilopruz]
)
|o
(?:m|rg)
|p
(?:[ae-hk-n]| ost | ro |[stwy])
|质量保证
|r[e
/(?i)(?(DEFINE)(?<proto>(?:https?:)?\/\/)(?<port>:[0-9]{2,5})(?<tld>(?:a(?:[cd]|e(?:ro)?|[fgil-oqr]|s(?:ia)?|[tuwxz])|b(?:[abd-h]|iz?|[jl-oq-tvwyz])|c(?:at?|[cdf-ik-n]|o(?:m|op)?|[ru-z])|d[ejkmoz]|e[ceghr-u]|f[i-kmor]|g[abd-il-np-uwy]|h[kmnrtu]|i(?:[delm]|n(?:fo|t)?|[oq-t])|j(?:[em]|o(?:bs)?|p)|k[eg-imnprwyz]|l[a-cikr-vy]|m(?:[ac-hk]|lc?|[mn]|o(?:bi)?|[p-t]|u(?:seum)?|[v-z])|n(?:a(?:me)?|c|et?|[fgilopruz])|o(?:m|rg)|p(?:[ae-hk-n]|ost|ro?|[stwy])|qa|r[eosuw]|s(?:[a-eg-or]|t(?:udio)?|[uvx-z])|t(?:[cd]|el|[f-hj-p]|r(?:avel)?|[tvwz])|u[agkmsyz]|v[aceginu]|w[fs]|y[et]|z[amw]))(?<path>(\/(?:[a-z0-9+%-]\.?)+)*\/?)(?<query>\?[a-z+&$_.-][a-z0-9;:@&%=+\/.-]*)(?<hash>\#[a-z_.-][a-z0-9+$%_.-]*)(?<subdomain>[a-z0-9\-\.]+\.)(?<yt_domain>(?:www\.)?(?:youtube\.com|youtu\.be)\/)(?<yt_hash>(?:[\w-]{10,12})+)(?<yt_video>(?&proto)?(?&yt_domain)+(?:watch)?(?:\/embed\/|\?v=)+(?&yt_hash)+))((?&yt_video).*(*SKIP)(*FAIL)|(?&proto)?(?&subdomain)(?&tld)(?&port)?(?&path)?(?&query)?(?&hash)?)/
(?i)
(?(DEFINE)
# URL
(?<proto> # (1 start)
(?: https?: )?
//
) # (1 end)
(?<port> : [0-9]{2,5} ) # (2)
(?<tld> # (3 start)
(?:
a
(?:
[cd]
| e
(?: ro )?
| [fgil-oqr]
| s
(?: ia )?
| [tuwxz]
)
| b
(?: [abd-h] | iz? | [jl-oq-tvwyz] )
| c
(?:
at?
| [cdf-ik-n]
| o
(?: m | op )?
| [ru-z]
)
| d [ejkmoz]
| e [ceghr-u]
| f [i-kmor]
| g [abd-il-np-uwy]
| h [kmnrtu]
| i
(?:
[delm]
| n
(?: fo | t )?
| [oq-t]
)
| j
(?:
[em]
| o
(?: bs )?
| p
)
| k [eg-imnprwyz]
| l [a-cikr-vy]
| m
(?:
[ac-hk]
| lc?
| [mn]
| o
(?: bi )?
| [p-t]
| u
(?: seum )?
| [v-z]
)
| n
(?:
a
(?: me )?
| c
| et?
| [fgilopruz]
)
| o
(?: m | rg )
| p
(?: [ae-hk-n] | ost | ro? | [stwy] )
| qa
| r [eosuw]
| s
(?:
[a-eg-or]
| t
(?: udio )?
| [uvx-z]
)
| t
(?:
[cd]
| el
| [f-hj-p]
| r
(?: avel )?
| [tvwz]
)
| u [agkmsyz]
| v [aceginu]
| w [fs]
| y [et]
| z [amw]
)
) # (3 end)
(?<path> # (4 start)
( # (5 start)
/
(?: [a-z0-9+%-] \.? )+
)* # (5 end)
/?
) # (4 end)
(?<query> \? [a-z+&$_.-] [a-z0-9;:@&%=+/.-]* ) # (6)
(?<hash> \# [a-z_.-] [a-z0-9+$%_.-]* ) # (7)
(?<subdomain> # (8 start)
[a-z0-9\-\.]+
\.
) # (8 end)
# Exceptions
(?<yt_domain> # (9 start)
(?: www\. )?
(?: youtube\.com | youtu\.be )
/
) # (9 end)
(?<yt_hash> # (10 start)
(?: [\w-]{10,12} )+
) # (10 end)
(?<yt_video> # (11 start)
(?&proto)? (?&yt_domain)+
(?: watch )?
(?: /embed/ | \?v= )+
(?&yt_hash)+
) # (11 end)
)
# Capture
( # (12 start)
(?&yt_video) .*
(*SKIP) (*FAIL)
|
(?&proto)?
(?&subdomain)
(?&tld)
(?&port)?
(?&path)?
(?&query)?
(?&hash)?
) # (12 end)