grep -f的性能问题
[英]Performance issue with grep -f
问题描述
我正在使用grep在单个文件中搜索几个正则表达式。 特别是，我正在考虑一个带有英文字幕的100 MB文件，并运行存储在文件patterns.txt中的以下正则表达式：
Cas.*eharden
acr.*otic
syn.*thesizing
sub.*abbot
iss.*acharite
bot.*onne
dis.*similatory
ove.*rmantel
isa.*tin
ado.*nijah
sol.*ution
zei.*st
fam.*ousness
inq.*uisitress
aor.*tography
via.*duct
ama.*sa
der.*ive
pie.*tas
kit.*chenette
在这样做时，我观察到grep所需的时间不会与正则表达式的数量呈线性增长。 实际上， 它似乎呈指数级增长 。
实验
系统： Intel（R）Core（TM）i5-5200U CPU @ 2.20GHz; 4个核心; 8 GB RAM
案例1：20 regexps
命令grep -c -f patterns.txt subtitles.txt计算2214次出现并占用
2,19s用户0,00s系统99％cpu 2,192总计。
案例2:30 regexps
如果我将以下表达式添加到patterns.txt
ort.*hros
ove.*ridentify
mis.*tiest
pay.*ne
int.*erchasing
jej.*uneness
sta.*lactiform
und.*ertrain
cob.*bles
Sub.*category
命令grep -c -f patterns.txt subtitles.txt计算2894次出现并占用71,35s用户0,06s系统99％cpu 1：11,42总计。
案例3：35个正则表达式
再添加五个表达式：
dis.*embosom
imp.*ortunateness
ema.*thion
rho.*mb
haz.*elwood
命令grep -c -f patterns.txt subtitles.txt计算2904次出现并占用211,18s用户0,22s系统99％cpu 3：31,58总计
为什么grep -f表现出这种行为？ 它在内部做什么？
我一直在使用的整套正则表达式都可以在这里找到
2 个解决方案
解决方案1
3 2017-07-08 16:14:27
通过阅读grep源代码，您的文件中的正则表达式似乎不会一次执行一个。 相反，它们一下子被读成一个大的正则表达式：
case 'f':
fp = STREQ (optarg, "-") ? stdin : fopen (optarg, O_TEXT ? "rt" : "r");
if (!fp)
error (EXIT_TROUBLE, errno, "%s", optarg);
for (keyalloc = 1; keyalloc <= keycc + 1; keyalloc *= 2)
;
keys = xrealloc (keys, keyalloc);
oldcc = keycc;
while ((cc = fread (keys + keycc, 1, keyalloc - 1 - keycc, fp)) != 0)
{
keycc += cc;
if (keycc == keyalloc - 1)
keys = x2nrealloc (keys, &keyalloc, sizeof *keys);
}
这是确认看到你的命令运行grep strace ：
open("testreg", O_RDONLY) = 3
fstat(3, {st_mode=S_IFREG|0664, st_size=124, ...}) = 0
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd8912fe000
read(3, "ort.*hros\nove.*ridentify\nmis.*ti"..., 4096) = 124
回溯正则表达式实现（允许反向引用），不在O（n）时间运行，而是在O（2 ^ m）运行，这可能导致灾难性的运行时。
你假设grep只是依次遍历每个正则表达式，将每个正则表达式编译成DFA然后执行它是完全合理的。 然而，似乎grep作者假设通过一次运行你的正则表达式，他们可能在某些情况下更有效地这样做。 结果是，通过将正则表达式添加到您的文件中，您将进入O（2 ^ m）运行时，从而导致运行时呈指数级增长。
事实证明，简单地循环遍历执行它们的每个正则表达式可能会更有效，从而迫使grep线性运行。 在我的笔记本电脑上，运行grep版本2.20，我只使用你提供的文件中的最后29个正则表达式得到以下结果：
[Downloads]$ wc -l patterns.txt
29 patterns.txt
[Downloads]$ time grep -c -f ~/Downloads/patterns.txt /usr/share/dict/linux.words
117
real 0m3.092s
user 0m3.027s
sys 0m0.047s
[csd@alcazar Downloads]$ time for regex in `cat ~/Downloads/patterns.txt`; do grep -c $regex /usr/share/dict/linux.words > /dev/null; done
real 0m0.474s
user 0m0.312s
sys 0m0.158s
解决方案2
1 2017-07-23 23:43:22
我有点晚了，但想试着澄清问题所在。
首先， .* 永远不应该跨越换行！
在门外，你不应该使用单独的正则扫描
相同的目标文本区域（完全独立的主题）。
好的，所以在这一点上我们可以做到可行的事情。
在构建和组合正则表达式时我们有一个选择。
我们可以确保每一个单独交替。
但是，如果我们有大量的文字正则表达式，这将
引起问题。
考虑一个正则表达式特里最多包含字母数字字符。
在外部交替级别，我们只想给发动机一个最大值
发动机横穿的26个通道。
当我们移动到二级（在每条路径内）时，我们想要给予
引擎另外26个最大路径。
对于那些途径，每个儿童途径等，这种选择再次发生......
这是一个完全成熟的，多层次的正则表达式线索的定义。
这大大减少了匹配的步骤数，如下所示。
我已经采用了你的patterns.txt并制作了两种表达方式。
一个没有特里，一个没有 。
你有580个独立的模式我们将结合起来。
在没有特里结构的那个中，有580个外层通道。
在具有特里的那个中，它形成了25个路径。
仅仅这一点就代表了20到1的速度差异。
继续，我们进一步为每个级别创建所有子路径trie。
这样可以在另外10-30倍的时间内完成这项工作。
你的模式大多是统一的，因为它们每个都有一个3个字母的常量
在贪婪量词之前.* 。
在此之后，仍然构建了子系列，但此时的结构是
轻微的影响。
我使用了RegexFormat 8实用程序
字符串的正则表达式-三叉树产生饱吹特里的
来自字符串文字。
我将这个生成的正则表达式与未改变的模式列表进行比较
正则表达式，我在其中加入了每个正则表达式之间的交替。
对于测试样本，我使用了一半
100 MB file with English subtitles
这大约是50 MB。
该测试使用RegexFormat 8，内置Benchmark Utility进行 。
Regex1是完整的生成trie。
Regex2是非trie版本。
每个正则表达式在50MB目标中匹配36,776个项目。
然而，时代却截然不同。
结果：
Regex1: (?:A(?:gr.*iology|nk.*let|tt.*ributive)|Bow.*ls|Cas.*eharden|Iso.*propyl|L(?:ab.*ella|ic.*htenberg)|Neu.*stic|Oro.*nasally|Pen.*stemon|R(?:e(?:i.*nspiration|p.*rovable)|up.*ee)|S(?:hi.*gellae|te.*rlet|ub.*(?:category|epithelial))|Vit.*alian|Wer.*e|a(?:c(?:a.*demic|e.*t(?:aldol|ylation)|h.*enial|i.*dimeter|r.*otic)|d(?:e.*nosarcomata|m.*easurer|o.*nijah)|ec.*ium|ir.*less|l(?:e.*xandroupolis|k.*alisation|l.*owable|m.*swomen)|m(?:a.*sa|n.*esic|y.*xorrhea)|n(?:c.*one|e.*mogram|g.*elical|o.*(?:ciassociation|le)|t.*imechanistic)|or.*tography|p(?:i.*sh|o.*carpous|ï.*¿¥ï¾½ritif)|r(?:c.*hipelagic|m.*ored|n.*oldson|y.*balloid)|s(?:c.*endent|t.*ound)|tt.*ainder|u(?:d.*ience|s.*tralioid|t.*ostoper)|va.*re|zi.*muthal)|b(?:a(?:b.*ette|l.*let|n.*galay|r.*(?:a|racuda|tolozzi))|e(?:a.*dsman|r.*(?:dache|nardsville))|is.*ymmetrically|la.*ckbuck|o(?:b.*owler|g.*(?:hazk￥ﾡy|omilism)|o.*mingly|r.*onic|t.*onne|u.*rbonnais)|r(?:i.*olette|o.*(?:minate|wne)|y.*ophytic)|ui.*ldup)|c(?:a(?:j.*ole|r.*teret|s.*sie|t.*(?:awba|hexes))|e(?:n.*(?:serless|tralist)|r.*(?:emoniously|tify))|h(?:a.*nduy|l.*orohydrin|o.*ya|r.*omoplast)|li.*(?:ckless|ntonville|toridean)|o(?:b.*bles|c.*kaded|g.*itable|h.*esiveness|l.*(?:lectivise|onially|umba)|n.*(?:gregativeness|strictive|tortion|vulsive)|r.*deliers|ï.*¿¥ï¾¡peratively)|r(?:a.*ckers|c.*hes|e.*stline|o.*(?:akier|uton))|u(?:l.*turist|r.*bless)|ï¿.*¥ï¾½dula)|d(?:''.*s|a(?:m.*selfishes|n.*dier)|e(?:a.*minize|f.*enseless|h.*umanize|m.*ulsifying|r.*(?:ive|mabrasion)|s.*(?:de|iderative)|v.*(?:a|olatilizing))|i(?:a.*dochy|h.*ydromorphinone|p.*lomatical|s.*(?:e(?:mbosom|nfranchisement|stablish)|similatory|tinguished|yllabize)|v.*ulgement)|o(?:l.*phinfishes|o.*rstep|r.*ter)|r(?:a.*(?:gonhead|maturge)|e.*ssing|u.*dging)|ul.*cimer)|e(?:as.*iness|co.*nometrician|ff.*ortful|l(?:e.*git|o.*ign)|m(?:a.*thion|e.*ndatory)|pi.*zoite|qu.*ipoise|st.*afette|th.*(?:nolinguistics|yl(?:ated|dichloroarsine))|x(?:c.*uss|h.*umed|p.*(?:andible|iable|ostulation)|t.*ravasating)|yc.*k)|f(?:a(?:m.*ousness|n.*tasied)|e(?:l.*ony|r.*(?:rotype|vidly)|w.*er)|i(?:l.*ial|s.*her)|l(?:a.*m(?:b￥ﾽ|eproof)|e.*et)|o(?:r.*(?:dyce|mularize)|z.*iness)|re.*ak|u(?:n.*goid|r.*ry))|g(?:a(?:l.*(?:act(?:in|oid)|vanically|way)|s.*(?:ifier|trostomy)|u.*(?:l|ssmeter))|e(?:g.*enion|n.*(?:eseo|ista)|o.*phyte|s.*tative)|in.*gili|lo.*(?:be|ssary)|o(?:d.*(?:hood|liest)|l.*dberg)|r(?:a.*(?:n(?:ddaddy|ulating)|vimetry)|e.*endale)|ua.*iacum|wy.*dion)|h(?:a(?:l.*lmark|r.*d(?:handed|ly)|s.*tefully|t.*shepset|z.*elwood)|e(?:a.*rt(?:eningly|sick)|c.*tometre|m.*atoid|p.*tode|t.*erodactyl|u.*neburg)|id.*eout|o(?:n.*orius|p.*s|r.*(?:nbeam|ribly)|v.*elled)|u(?:n.*k|r.*ricane)|y(?:o.*scine|p.*othallus))|i(?:d(?:e.*ler|m.*on)|ll.*iquidly|m(?:m.*obilize|p.*(?:ort(?:antly|unateness)|udently))|n(?:a.*dequacy|c.*linable|d.*ustrialised|e.*quitable|f.*ringer|g.*rate|q.*uisitress|t.*(?:er(?:aural|belligerent|chasing|hybridized|mundane)|ranuclear))|od.*ise|r(?:e.*nical|k.*someness|r.*uptively)|s(?:a.*tin|s.*acharite))|j(?:a(?:i.*na|m.*aican)|e(?:a.*n|d.*burgh|j.*uneness|w.*ishness)|id.*da|ud.*ea)|k(?:am.*seen|ea.*nsburg|i(?:l.*obaud|t.*chenette)|la.*nism|on.*a|uw.*ait)|l(?:ac.*unaria|i(?:e.*der|m.*acine|n.*us|q.*uer|s.*tlessly)|o(?:c.*k|g.*(?:iciz(?:e|ing)|ographer))|u(?:k.*s|m.*inal)|ym.*phogranulomata)|m(?:a(?:m.*al(?:lapuram|uke)|r.*(?:acanda|or)|s.*sys)|ca.*llen|e(?:i.*lhac|t.*hylate)|i(?:n.*imalist|s.*(?:a(?:nalyzing|uthorizing)|ce|quoting|shipping|tiest)|t.*tatur)|on.*othelitic|u(?:l.*ti(?:chrome|volumed)|s.*siest))|n(?:at.*atoriums|e(?:c.*rologically|m.*o|o.*styled|p.*hritic|t.*tlelike|u.*roglial|w.*fangledly)|o(?:g.*gin|n.*(?:a(?:mendment|scetic|ttachment)|dilution|knowledgeable|narrative|receptive|s(?:a(?:cramental|linity)|ecrecy|tability|uspended))|r.*mandy|u.*akchott)|ur.*turable)|o(?:li.*o|p(?:e.*nairness|h.*thalmoscopy|s.*onin)|r(?:a.*cles|i.*entally|o.*logist|t.*hros)|sc.*illator|u(?:s.*el|t.*(?:chasing|drew|echoing))|ve.*r(?:glad|hang|i(?:dentify|mpressibility|ntensified)|m(?:antel|uch)|spacious|thriftiness)|wl.*ishness|xy.*genicity)|p(?:a(?:r.*(?:a(?:professional|tences)|entalia)|y.*ne)|e(?:d.*al|e.*p|n.*(?:etrableness|u(?:mbra|rious))|r.*(?:ches|istaltically))|h(?:i.*landerer|o.*(?:nautograph|to(?:n|static)))|i(?:c.*nicking|e.*tas|n.*gr|p.*pin)|la.*yday|ne.*umoencephalogram|o(?:o.*fter|p.*sy)|r(?:e.*(?:a(?:cceptance|ffiliated|ging)|con(?:flict|triving)|d(?:eprive|is(?:ciplined|guise))|expeditionary|historically|insult|judger|pense|s(?:entimental|u(?:bscription|itable))|t(?:ry|ypify))|o.*(?:fligateness|mulger|t(?:eid|oplasmic)))|se.*udo(?:cele|nymous)|u(?:b.*licized|i.*rness|n.*ctualness|r.*sing|t.*rilaginous)|yx.*is)|qu(?:a.*rreler|i.*st|o.*dlibetically)|r(?:a(?:d.*iotelemetry|g.*gedy)|e(?:c.*(?:ampaign|umbent)|d.*ominating|e.*xpose|f.*ulgentness|i.*(?:maged|nhardt|temized)|m.*ontoire|o.*rientating|p.*(?:e(?:llant|n)|lunging)|s.*hook|t.*(?:elegraph|ral)|v.*ocableness)|h(?:i.*naria|o.*mb)|i(?:d.*dle|f.*leman)|o(?:d.*eo|l.*lo|u.*che|y.*ce))|s(?:a(?:l.*ic|n.*(?:ctimonious|d))|c(?:e.*ptic|o.*ttish|r.*u(?:ffiest|mpy)|u.*lptor)|e(?:l.*ves|p.*arator)|h(?:e.*lbyville|i.*pboard|o.*shone)|in.*(?:cerely|gularise)|lo.*wpoke|m(?:i.*dgin|o.*keproof)|o(?:l.*ution|p.*rano|r.*(?:bian|rento)|u.*thwest)|p(?:a.*lato|i.*nning|r.*itehood)|t(?:a.*(?:lactiform|minodia|ndish|toblast)|e.*rope|i.*lyaga)|u(?:b.*(?:abbot|extensible|foliation|jectional|preceptorial|stantialness|tegumental)|k.*arnapura|l.*liable|n.*ward|p.*eracquisition)|wi.*m|yn.*thesizing)|t(?:a(?:l.*kie|t.*tooed)|e(?:l.*e(?:cast|g|ran)|n.*sionless|r.*minatory|t.*radrachm)|h(?:e.*(?:ban|r(?:m(?:alize|obarograph)|ophyte)|spian)|i.*osinamine)|ig.*r￥ﾽ|o(?:n.*eless|r.*ulosis)|ra.*(?:lles|pani)|u(?:m.*idity|n.*eableness)|w(?:e.*enies|o.*three)|y(?:l.*er|p.*ewrote))|u(?:lt.*raviruses|n(?:b.*(?:esmirched|oring)|c.*o(?:mmitted|n(?:fronted|tr(?:asted|ibutory)))|d.*(?:e(?:based|r(?:framework|nourish|populated|train))|ischarged|rowned)|e.*xceeded|f.*orgeability|g.*(?:oaded|roupable)|l.*oyalty|m.*ounting|o.*ceanic|p.*(?:erishing|hlegmatic|recocious)|r.*e(?:ached|counted|solvable)|s.*(?:e(?:parative|rrate)|hadowable|ilicified|l(?:immed|uiced)|naky|pelt|t(?:ealthy|oppably)|werving)|t.*(?:heistical|r(?:ansparent|ustworthy))|u.*seful|w.*hisked)|p(?:b.*ear|p.*ercutting)|rs.*ula)|v(?:a(?:l.*ois|p.*orize|r.*as|t.*ican)|er.*us|i(?:a.*duct|c.*tualing|l.*lose)|ul.*canizer)|w(?:a(?:r.*rington|x.*y)|e(?:a.*rability|s.*termarck)|he.*rrit|i(?:s.*teria|t.*hy)|ul.*fenite)|y(?:es.*enin|ol.*ande)|z(?:e(?:b.*ec|i.*st|l.*os)|on.*ule))
Options: < none >
Completed iterations: 1 / 1 ( x 1 )
Matches found per iteration: 36776
Elapsed Time: 19.94 s, 19936.96 ms, 19936963 µs
Regex2: (?:Cas.*eharden|acr.*otic|... (truncated)
Options: < none >
Completed iterations: 1 / 1 ( x 1 )
Matches found per iteration: 36776
Elapsed Time: 299.74 s, 299735.86 ms, 299735857 µs
格式化（扩展）时可以更好地看到正则表达式。
结论 - 我建议使用完全吹制的三通 ，这将治愈你的
延迟问题。
祝好运 ！！
如果你有任何问题随时问。
(?:
A
(?:
gr .* iology
| nk .* let
| tt .* ributive
)
| Bow .* ls
| Cas .* eharden
| Iso .* propyl
| L
(?: ab .* ella | ic .* htenberg )
| Neu .* stic
| Oro .* nasally
| Pen .* stemon
| R
(?:
e
(?: i .* nspiration | p .* rovable )
| up .* ee
)
| S
(?:
hi .* gellae
| te .* rlet
| ub .*
(?: category | epithelial )
)
| Vit .* alian
| Wer .* e
| a
(?:
c
(?:
a .* demic
| e .* t
(?: aldol | ylation )
| h .* enial
| i .* dimeter
| r .* otic
)
| d
(?:
e .* nosarcomata
| m .* easurer
| o .* nijah
)
| ec .* ium
| ir .* less
| l
(?:
e .* xandroupolis
| k .* alisation
| l .* owable
| m .* swomen
)
| m
(?: a .* sa | n .* esic | y .* xorrhea )
| n
(?:
c .* one
| e .* mogram
| g .* elical
| o .*
(?: ciassociation | le )
| t .* imechanistic
)
| or .* tography
| p
(?:
i .* sh
| o .* carpous
| ï .* ¿¥ï¾½ritif
)
| r
(?:
c .* hipelagic
| m .* ored
| n .* oldson
| y .* balloid
)
| s
(?: c .* endent | t .* ound )
| tt .* ainder
| u
(?:
d .* ience
| s .* tralioid
| t .* ostoper
)
| va .* re
| zi .* muthal
)
| b
(?:
a
(?:
b .* ette
| l .* let
| n .* galay
| r .*
(?: a | racuda | tolozzi )
)
| e
(?:
a .* dsman
| r .*
(?: dache | nardsville )
)
| is .* ymmetrically
| la .* ckbuck
| o
(?:
b .* owler
| g .*
(?: hazk￥ﾡy | omilism )
| o .* mingly
| r .* onic
| t .* onne
| u .* rbonnais
)
| r
(?:
i .* olette
| o .*
(?: minate | wne )
| y .* ophytic
)
| ui .* ldup
)
| c
(?:
a
(?:
j .* ole
| r .* teret
| s .* sie
| t .*
(?: awba | hexes )
)
| e
(?:
n .*
(?: serless | tralist )
| r .*
(?: emoniously | tify )
)
| h
(?:
a .* nduy
| l .* orohydrin
| o .* ya
| r .* omoplast
)
| li .*
(?: ckless | ntonville | toridean )
| o
(?:
b .* bles
| c .* kaded
| g .* itable
| h .* esiveness
| l .*
(?: lectivise | onially | umba )
| n .*
(?:
gregativeness
| strictive
| tortion
| vulsive
)
| r .* deliers
| ï .* ¿¥ï¾¡peratively
)
| r
(?:
a .* ckers
| c .* hes
| e .* stline
| o .*
(?: akier | uton )
)
| u
(?: l .* turist | r .* bless )
| ï¿ .* ¥ï¾½dula
)
| d
(?:
'' .* s
| a
(?: m .* selfishes | n .* dier )
| e
(?:
a .* minize
| f .* enseless
| h .* umanize
| m .* ulsifying
| r .*
(?: ive | mabrasion )
| s .*
(?: de | iderative )
| v .*
(?: a | olatilizing )
)
| i
(?:
a .* dochy
| h .* ydromorphinone
| p .* lomatical
| s .*
(?:
e
(?: mbosom | nfranchisement | stablish )
| similatory
| tinguished
| yllabize
)
| v .* ulgement
)
| o
(?:
l .* phinfishes
| o .* rstep
| r .* ter
)
| r
(?:
a .*
(?: gonhead | maturge )
| e .* ssing
| u .* dging
)
| ul .* cimer
)
| e
(?:
as .* iness
| co .* nometrician
| ff .* ortful
| l
(?: e .* git | o .* ign )
| m
(?: a .* thion | e .* ndatory )
| pi .* zoite
| qu .* ipoise
| st .* afette
| th .*
(?:
nolinguistics
| yl
(?: ated | dichloroarsine )
)
| x
(?:
c .* uss
| h .* umed
| p .*
(?: andible | iable | ostulation )
| t .* ravasating
)
| yc .* k
)
| f
(?:
a
(?: m .* ousness | n .* tasied )
| e
(?:
l .* ony
| r .*
(?: rotype | vidly )
| w .* er
)
| i
(?: l .* ial | s .* her )
| l
(?:
a .* m
(?: b￥ﾽ | eproof )
| e .* et
)
| o
(?:
r .*
(?: dyce | mularize )
| z .* iness
)
| re .* ak
| u
(?: n .* goid | r .* ry )
)
| g
(?:
a
(?:
l .*
(?:
act
(?: in | oid )
| vanically
| way
)
| s .*
(?: ifier | trostomy )
| u .*
(?: l | ssmeter )
)
| e
(?:
g .* enion
| n .*
(?: eseo | ista )
| o .* phyte
| s .* tative
)
| in .* gili
| lo .*
(?: be | ssary )
| o
(?:
d .*
(?: hood | liest )
| l .* dberg
)
| r
(?:
a .*
(?:
n
(?: ddaddy | ulating )
| vimetry
)
| e .* endale
)
| ua .* iacum
| wy .* dion
)
| h
(?:
a
(?:
l .* lmark
| r .* d
(?: handed | ly )
| s .* tefully
| t .* shepset
| z .* elwood
)
| e
(?:
a .* rt
(?: eningly | sick )
| c .* tometre
| m .* atoid
| p .* tode
| t .* erodactyl
| u .* neburg
)
| id .* eout
| o
(?:
n .* orius
| p .* s
| r .*
(?: nbeam | ribly )
| v .* elled
)
| u
(?: n .* k | r .* ricane )
| y
(?: o .* scine | p .* othallus )
)
| i
(?:
d
(?: e .* ler | m .* on )
| ll .* iquidly
| m
(?:
m .* obilize
| p .*
(?:
ort
(?: antly | unateness )
| udently
)
)
| n
(?:
a .* dequacy
| c .* linable
| d .* ustrialised
| e .* quitable
| f .* ringer
| g .* rate
| q .* uisitress
| t .*
(?:
er
(?:
aural
| belligerent
| chasing
| hybridized
| mundane
)
| ranuclear
)
)
| od .* ise
| r
(?:
e .* nical
| k .* someness
| r .* uptively
)
| s
(?: a .* tin | s .* acharite )
)
| j
(?:
a
(?: i .* na | m .* aican )
| e
(?:
a .* n
| d .* burgh
| j .* uneness
| w .* ishness
)
| id .* da
| ud .* ea
)
| k
(?:
am .* seen
| ea .* nsburg
| i
(?: l .* obaud | t .* chenette )
| la .* nism
| on .* a
| uw .* ait
)
| l
(?:
ac .* unaria
| i
(?:
e .* der
| m .* acine
| n .* us
| q .* uer
| s .* tlessly
)
| o
(?:
c .* k
| g .*
(?:
iciz
(?: e | ing )
| ographer
)
)
| u
(?: k .* s | m .* inal )
| ym .* phogranulomata
)
| m
(?:
a
(?:
m .* al
(?: lapuram | uke )
| r .*
(?: acanda | or )
| s .* sys
)
| ca .* llen
| e
(?: i .* lhac | t .* hylate )
| i
(?:
n .* imalist
| s .*
(?:
a
(?: nalyzing | uthorizing )
| ce
| quoting
| shipping
| tiest
)
| t .* tatur
)
| on .* othelitic
| u
(?:
l .* ti
(?: chrome | volumed )
| s .* siest
)
)
| n
(?:
at .* atoriums
| e
(?:
c .* rologically
| m .* o
| o .* styled
| p .* hritic
| t .* tlelike
| u .* roglial
| w .* fangledly
)
| o
(?:
g .* gin
| n .*
(?:
a
(?: mendment | scetic | ttachment )
| dilution
| knowledgeable
| narrative
| receptive
| s
(?:
a
(?: cramental | linity )
| ecrecy
| tability
| uspended
)
)
| r .* mandy
| u .* akchott
)
| ur .* turable
)
| o
(?:
li .* o
| p
(?:
e .* nairness
| h .* thalmoscopy
| s .* onin
)
| r
(?:
a .* cles
| i .* entally
| o .* logist
| t .* hros
)
| sc .* illator
| u
(?:
s .* el
| t .*
(?: chasing | drew | echoing )
)
| ve .* r
(?:
glad
| hang
| i
(?: dentify | mpressibility | ntensified )
| m
(?: antel | uch )
| spacious
| thriftiness
)
| wl .* ishness
| xy .* genicity
)
| p
(?:
a
(?:
r .*
(?:
a
(?: professional | tences )
| entalia
)
| y .* ne
)
| e
(?:
d .* al
| e .* p
| n .*
(?:
etrableness
| u
(?: mbra | rious )
)
| r .*
(?: ches | istaltically )
)
| h
(?:
i .* landerer
| o .*
(?:
nautograph
| to
(?: n | static )
)
)
| i
(?:
c .* nicking
| e .* tas
| n .* gr
| p .* pin
)
| la .* yday
| ne .* umoencephalogram
| o
(?: o .* fter | p .* sy )
| r
(?:
e .*
(?:
a
(?: cceptance | ffiliated | ging )
| con
(?: flict | triving )
| d
(?:
eprive
| is
(?: ciplined | guise )
)
| expeditionary
| historically
| insult
| judger
| pense
| s
(?:
entimental
| u
(?: bscription | itable )
)
| t
(?: ry | ypify )
)
| o .*
(?:
fligateness
| mulger
| t
(?: eid | oplasmic )
)
)
| se .* udo
(?: cele | nymous )
| u
(?:
b .* licized
| i .* rness
| n .* ctualness
| r .* sing
| t .* rilaginous
)
| yx .* is
)
| qu
(?:
a .* rreler
| i .* st
| o .* dlibetically
)
| r
(?:
a
(?: d .* iotelemetry | g .* gedy )
| e
(?:
c .*
(?: ampaign | umbent )
| d .* ominating
| e .* xpose
| f .* ulgentness
| i .*
(?: maged | nhardt | temized )
| m .* ontoire
| o .* rientating
| p .*
(?:
e
(?: llant | n )
| lunging
)
| s .* hook
| t .*
(?: elegraph | ral )
| v .* ocableness
)
| h
(?: i .* naria | o .* mb )
| i
(?: d .* dle | f .* leman )
| o
(?:
d .* eo
| l .* lo
| u .* che
| y .* ce
)
)
| s
(?:
a
(?:
l .* ic
| n .*
(?: ctimonious | d )
)
| c
(?:
e .* ptic
| o .* ttish
| r .* u
(?: ffiest | mpy )
| u .* lptor
)
| e
(?: l .* ves | p .* arator )
| h
(?:
e .* lbyville
| i .* pboard
| o .* shone
)
| in .*
(?: cerely | gularise )
| lo .* wpoke
| m
(?: i .* dgin | o .* keproof )
| o
(?:
l .* ution
| p .* rano
| r .*
(?: bian | rento )
| u .* thwest
)
| p
(?: a .* lato | i .* nning | r .* itehood )
| t
(?:
a .*
(?: lactiform | minodia | ndish | toblast )
| e .* rope
| i .* lyaga
)
| u
(?:
b .*
(?:
abbot
| extensible
| foliation
| jectional
| preceptorial
| stantialness
| tegumental
)
| k .* arnapura
| l .* liable
| n .* ward
| p .* eracquisition
)
| wi .* m
| yn .* thesizing
)
| t
(?:
a
(?: l .* kie | t .* tooed )
| e
(?:
l .* e
(?: cast | g | ran )
| n .* sionless
| r .* minatory
| t .* radrachm
)
| h
(?:
e .*
(?:
ban
| r
(?:
m
(?: alize | obarograph )
| ophyte
)
| spian
)
| i .* osinamine
)
| ig .* r￥ﾽ
| o
(?: n .* eless | r .* ulosis )
| ra .*
(?: lles | pani )
| u
(?: m .* idity | n .* eableness )
| w
(?: e .* enies | o .* three )
| y
(?: l .* er | p .* ewrote )
)
| u
(?:
lt .* raviruses
| n
(?:
b .*
(?: esmirched | oring )
| c .* o
(?:
mmitted
| n
(?:
fronted
| tr
(?: asted | ibutory )
)
)
| d .*
(?:
e
(?:
based
| r
(?:
framework
| nourish
| populated
| train
)
)
| ischarged
| rowned
)
| e .* xceeded
| f .* orgeability
| g .*
(?: oaded | roupable )
| l .* oyalty
| m .* ounting
| o .* ceanic
| p .*
(?: erishing | hlegmatic | recocious )
| r .* e
(?: ached | counted | solvable )
| s .*
(?:
e
(?: parative | rrate )
| hadowable
| ilicified
| l
(?: immed | uiced )
| naky
| pelt
| t
(?: ealthy | oppably )
| werving
)
| t .*
(?:
heistical
| r
(?: ansparent | ustworthy )
)
| u .* seful
| w .* hisked
)
| p
(?: b .* ear | p .* ercutting )
| rs .* ula
)
| v
(?:
a
(?:
l .* ois
| p .* orize
| r .* as
| t .* ican
)
| er .* us
| i
(?: a .* duct | c .* tualing | l .* lose )
| ul .* canizer
)
| w
(?:
a
(?: r .* rington | x .* y )
| e
(?: a .* rability | s .* termarck )
| he .* rrit
| i
(?: s .* teria | t .* hy )
| ul .* fenite
)
| y
(?: es .* enin | ol .* ande )
| z
(?:
e
(?: b .* ec | i .* st | l .* os )
| on .* ule
)
)
包含在文件中的grep正则表达式（不是grep -f选项！）
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