Izici eziyi-10 zolimi lokuhlela lwe-Perl: I-Chameleon Yokuhlela?

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Ulimi lokuhlela lwe-Perl beluyithuluzi elibalulekile emhlabeni wokuthuthukiswa kwesofthiwe amashumi eminyaka. Eyaziwa ngokuguquguquka namandla, i-Perl izuze kokubili abathandwayo nabaphikisi eminyakeni edlule. Okulandelayo, sizodalula izimfihlakalo ze-Perl, sihlole izici zayo ezihlukile, izinhlelo zokusebenza, kanye nendawo yayo ekuhleleni kwezwe kwanamuhla.

Umlando nokuziphendukela kwemvelo kolimi lokuhlela lwe-Perl

Imvelaphi kaPerl

I-Perl, isifinyezo se-Practical Extraction and Reporting Language, yadalwa ngu-Larry Wall ngo-1987. Ugqozi luka-Wall lwalulula: wayedinga ithuluzi elingacubungula imibiko kahle. Okwaqala njengomsebenzi womuntu siqu ngokushesha kwakhula kwaba ulimi lwezinhlelo oluguquguqukayo nolwamukelwa kabanzi.

U-Wall, isazi sezilimi ngokuqeqeshwa, wafaka ulimi lokuhlela lwe-Perl ngemiqondo eminingi yolimi, okube nesandla ekuguquguqukeni kwalo kokwenziwa kwezinto. Lesi sici siye sanconywa futhi sagxekwa, njengoba sivumela abahleli bohlelo ukuthi baziveze ngezindlela eziningi, abanye abasibheka njengenzuzo yokukhiqiza, kuyilapho abanye besibona njengomthombo ongaba khona wekhodi okunzima ukuyigcina.

Izinguqulo ezinkulu nezici zazo

Ngokuhamba kweminyaka, ulimi lohlelo lwe-Perl luye lwenziwa iziphindaphindo eziningana ezinkulu:

1. I-Perl 1-4 (1987-1993): Lezi zinguqulo zangaphambili zabeka isisekelo solimi, zethula izici ezifana nalezi izinkulumo ezivamile kanye nokukhohlisa umbhalo.
2. Perl 5 (1994-manje): Lokhu kukhishwa kuletha ukubhalwa kabusha okukhulu komhumushi nezici ezintsha njengereferensi, amamojula, nokusekelwa kohlelo olugxile entweni. I-Perl 5 isasetshenziswa kabanzi futhi igcinwe.
3. Perl 6/Raku (2015)Ekuqaleni le phrojekthi yaqanjwa njengenguqulo elandelayo ye-Perl, yaguqulelwa olimini oluhlukile, manje olwaziwa ngokuthi i-Raku.

Ukuphindwaphindwa ngakunye kwe-Perl kufune ukuthuthukisa ukusebenza kahle nokwelula amakhono olimi, kuyilapho igcina ifilosofi ewumongo yokuthi "kunendlela engaphezu kweyodwa yokwenza" (TMTOWTDI).

Izici eziyingqayizivele ze-Perl

Izinkulumo Ezivamile Ezinamandla

Esinye sezici eziphawuleka kakhulu zePerl ukwesekwa kwayo kwendabuko nokunamandla kwezinkulumo ezijwayelekile. Leli khono lenza i-Perl iphumelele ngokukhethekile ekucubunguleni umbhalo nemisebenzi yokuhlaziya idatha. Ake sibone isibonelo:

$texto = "El lenguaje de programación Perl es versátil";
if ($texto =~ /lenguaje de programación Perl/) {
    print "¡Encontrado!";
}

Kula mazwibela alula, sisebenzisa isisho esivamile ukucinga umusho othi "Perl ulimi lohlelo" kuyunithi yezinhlamvu yombhalo. I-syntax =~ Ihlukile ku-Perl futhi yenza kube lula ukusebenzisa izinkulumo ezivamile ngendlela enembile kakhulu.

Ukuvumelana nezimo ku-syntax

Ulimi lohlelo lwe-Perl lwaziwa ngokuguquguquka kwe-syntactic, okuvumela abahleli bohlelo ukuthi babhale ikhodi ngendlela emfushane necacile. Lesi sici sihambisana nesiqubulo sika-Perl esingekho emthethweni: "Kunezindlela ezingaphezu kweyodwa zokukwenza." Isibonelo, cabanga ngezindlela ezahlukahlukene zokuphrinta okuthi "Sawubona, mhlaba" ku-Perl:

print "Hola, mundo\n";
print("Hola, mundo\n");
printf "%s\n", "Hola, mundo";
say "Hola, mundo";  # En versiones más recientes de Perl

Wonke la mafomu ayasebenza futhi akhiqiza umphumela ofanayo. Lokhu kuvumelana nezimo kungaba isibusiso kubahleli bohlelo abanolwazi, okubavumela ukuthi bakhethe isitayela esizifanela kangcono izidingo zabo noma abakuthandayo.

Common Perl Applications

Ukuthuthukiswa kweWebhu

Sekuyisikhathi eside i-Perl iyisisekelo sokuthuthukiswa kwewebhu, ikakhulukazi ezinsukwini zokuqala ze-inthanethi. Ikhono layo lokucubungula umbhalo nokuhlanganiswa kwawo nephrothokholi ye-Common Gateway Interface (CGI) ikwenze kwaba ukukhetha okudumile ekudaleni amawebhusayithi ashukumisayo. Nakuba ukusetshenziswa kwayo ekuthuthukisweni kwewebhu okuphambili kwehlile ngenxa yezilimi zesimanjemanje, i-Perl isasetshenziswa ezinhlelweni eziningi ezingemuva kanye nemisebenzi yokunakekela iwebhu.

Isibonelo sakudala seskripthi se-Perl CGI singaba:

#!/usr/bin/perl
use CGI;

my $cgi = CGI->new;
print $cgi->header;
print $cgi->start_html('Mi página web');
print $cgi->h1('Bienvenido a mi sitio web');
print $cgi->end_html;

Lo mbhalo olula ukhiqiza ikhasi lewebhu eliyisisekelo kusetshenziswa imojula ye-Perl CGI.

Ukuphathwa Kwezinhlelo

Ulimi lohlelo lwePerl lukhanya ikakhulukazi emisebenzini yokuphatha uhlelo. Ikhono layo lokuphatha amafayela, ukucubungula umbhalo kanye nokukhipha imiyalo yesistimu liyenza ilungele ukuzenzela imisebenzi yokulungisa kanye nokuhlaziywa kwelogi. Isibonelo, iskripthi sokuhlola amaphutha kufayela lokungena singabukeka kanje:

#!/usr/bin/perl
use strict;
use warnings;

open(my $log, '<', '/var/log/miapp.log') or die "No se pudo abrir el archivo: $!";
while (my $linea = <$log>) {
    if ($linea =~ /ERROR/) {
        print "Encontrado error: $linea";
    }
}
close $log;

Lesi script sifunda umugqa wefayela lokungena ngomugqa futhi siphrinta noma yimuphi umugqa oqukethe igama elithi "ERROR".

Izinzuzo zolimi lokuhlela lwe-Perl

1. Amandla ekucubunguleni umbhalo: I-Perl ingeyesibili uma kuziwa ekuguquleni nasekuhlukaniseni umbhalo, ngenxa yezinkulumo zayo ezivamile eziqinile nezici zokuphatha izintambo.
2. UkuphathekaImibhalo ye-Perl ingasebenza kumasistimu wokusebenza anhlobonhlobo ngaphandle kokulungiswa okubalulekile.
3. Umtapo obanzi wamamojula: I-CPAN (Comprehensive Perl Archive Network) inikeza iqoqo elikhulu lamamojula asebenziseka kabusha anweba kakhulu amandla e-Perl.
4. Ukuthuthukiswa okusheshayoI-syntax ka-Perl eguquguqukayo ivumela abahleli bohlelo ukuthi babhale ikhodi ngokushesha, okuwusizo ikakhulukazi kumaskripthi asetshenziswa kanye noma ama-prototypes.
5. Umphakathi osebenzayo: Nakuba mncane kunasesikhathini sawo, umphakathi we-Perl usasebenza futhi usekela, unikeza izinsiza nokusekelwa konjiniyela.

Izinselelo kanye nemikhawulo ye-Perl

Naphezu kwamandla ayo amaningi, uPerl ubuye abhekane nezinselelo ezithile:

1. Ijika lokufunda eliwumqansaUkuguquguquka kokwenziwa kwe-Perl kungaba nzima kwabaqalayo.
2. Ukufundeka kwekhodiIsiqubulo esithi "ingaphezu kweyodwa indlela yokwenza" singaholela kukhodi okunzima ukuyifunda nokuyigcina, ikakhulukazi kumaphrojekthi amakhulu.
3. Isivinini sokubulawa: Nakuba inganensisi, i-Perl ingakwazi ukusebenza kahle kunezilimi ezihlanganisiwe zemisebenzi ethile esebenza ngekhompyutha.
4. Ukuduma okuncane uma kuqhathaniswa nezinye izilimi: Lokhu kungasho amathuba omsebenzi ambalwa kanye nezinsiza zokufunda ezinomkhawulo.

Ukuqhathanisa nezinye izilimi zokuhlela

I-Perl iqhathaniswa kanjani nezinye izilimi ezidumile? Ake sibone ukuqhathanisa kafushane:

Característica	I-Perl	Python	Ruby	PHP
I-syntax	Flexible	Ilula futhi iyafundeka	Elegant futhi iveza	Okufanayo no-C
I-curve yokufunda	Emaweni	Suave	Maphakathi	Maphakathi
Ukucubungula amagama	Excelente	Bueno	Kuhle kakhulu	Bueno
Ukuthuthukiswa kweWebhu	Kungenzeka, kodwa okungajwayelekile kakhulu	Okudumile (i-Django, Flask)	Okudumile (Ruby on Rails)	Kudume kakhulu
Isivinini sokubulawa	Maphakathi	Maphakathi	Maphakathi	Kuphakathi kuya Ekuphakameni
Umphakathi kanye ne-ecosystem	Iyasebenza kodwa iyehla	Isebenza kakhulu futhi ikhula	Iyasebenza futhi izinzile	Kuyasebenza kakhulu

Umphakathi kanye nezinsiza zokufunda i-Perl

Naphezu kokulahlekelwa ukucwebezela kwalo kwangaphambili, ulimi lohlelo lwePerl lusenomphakathi ozinikele nezinsiza ezibalulekile kulabo abathanda ukufunda noma ukuthuthukisa amakhono abo:

1. Perl.org: Isayithi elisemthethweni le-Perl, elinikeza imibhalo, okokufundisa, nezindaba.
2. I-CPAN: Inqolobane enkulu yamamojula e-Perl, okudingekayo kunoma yimuphi umthuthukisi we-Perl.
3. Ama-PerlMonks: Umphakathi waku-inthanethi lapho onjiniyela be-Perl bengabuza khona imibuzo futhi babelane ngolwazi.
4. I-Perl yesimanje: Incwadi eku-inthanethi yamahhala efundisa i-Perl yesimanje kanye nemikhuba ehamba phambili.
5. Perl Maviki onke: Incwadi yezindaba yamasonto onke egcina abathuthukisi benolwazi lwakamuva ngezindaba zakamuva nentuthuko emhlabeni we-Perl.

Ikusasa likaPerl: Liphokophelephi?

Ikusasa likaPerl liyisihloko senkulumompikiswano emphakathini ohlelayo. Yize ilahlekelwe ukubusa kwayo kwangaphambili, i-Perl iyaqhubeka nokuvela:

1. Perl 7Yamenyezelwa ngo-2020, i-Perl 7 ithembisa ukuba yinguqulo yesimanjemanje nefinyelelekayo ye-Perl 5, enokuzenzakalelayo okuphephile kanye ne-syntax ehlanzekile.
2. Gxila ekwenzeni izinto zibe zesimanjemanje: Umphakathi we-Perl usebenza ukuthuthukisa ukuzizwisa konjiniyela nokwenza ulimi luhehe kakhulu kubahleli bohlelo abasha.
3. Ukugcina izinhlelo zefa: Njengoba amasistimu amaningi abucayi abhalwe nge-Perl, ulimi luzohlala lufanelekile ukuze kugcinwe futhi kuthuthukiswe lezi zinhlelo.
4. Ama-niches akhethekileI-Perl isalokhu idumile emikhakheni efana ne-bioinformatics kanye nokuphathwa kwezinhlelo, lapho amandla ayo okucubungula umbhalo ebaluleke kakhulu.

Kungani uPerl elahlekelwe ukuthandwa

Akunakuphikwa ukuthi i-Perl ihlangabezane nokwehla kokuthandwa phakathi neminyaka engamashumi amabili edlule. Izizathu ezimbalwa zibe nomthelela kulokhu kuncipha:

1. Ukuvela kwezinye izindlela ezifinyeleleka kakhuluIzilimi ezifana nePython neRuby zinikeza amakhono amaningi e-Perl nge-syntax abaningi abayibheka njengehlanzekile futhi kulula ukuyifunda.
2. Ukushintsha amathrendi okuthuthukisa iwebhu: Izinhlaka zesimanje ngezinye izilimi zisuse i-Perl ekuthuthukisweni kwewebhu, obekungenye yamandla ayo.
3. Ukubona inkimbinkimbiUkuguquguquka kokwenziwa kwe-Perl, nakuba kunamandla, kungaholela kukhodi okunzima ukuyifunda nokuyigcina, ikakhulukazi kumaphrojekthi amakhulu.
4. Ukuthuthukiswa okunensayo kwezinguqulo ezintshaUkuthuthukiswa okude kwe-Perl 6 (manje eyi-Raku) kudale ukungaqiniseki emphakathini futhi kungenzeka kubambezele ukwamukelwa kwezici ezintsha.
5. Ukuntuleka “kohlelo lokusebenza olubulalayo” lwesimanje: Ngokungafani ne-Ruby ene-Rails noma i-Python enemitapo yolwazi yesayensi yedatha, i-Perl ayizange ibe nohlaka lwesimanje noma uhlelo lokusebenza ukushayela ukwamukelwa kwayo emikhakheni emisha.
6. Izinsiza zokufunda ezibuyekeziwe kancane: Ngokuncipha kokuthandwa, zimbalwa izincwadi zesimanje, izifundo kanye nezifundo ezitholakalayo zabafundi abasha.

Naphezu kwalezi zinselele, i-Perl igcina isisekelo sabasebenzisi abathembekile futhi ihlala ibalulekile ezinhlelweni eziningi ezimisiwe nezinkampani.

Isiphetho: Ingabe ulimi lohlelo lwe-Perl lufanele ukufunda namuhla?

Ngemuva kokuhlola izici zolimi lohlelo lwePerl, kuphakama umbuzo: ingabe kufanelekile ukufunda ngo-2024? Impendulo, njengezinto eziningi ezinhlelweni, incike kumongo.

I-Perl ihlala iyithuluzi elibalulekile ezindaweni ezithile:

• Uma usebenza ekuphathweni kwezinhlelo, ikakhulukazi ezindaweni ze-Unix/Linux.
• Uma uhileleke ku-bioinformatics noma ekuhlaziyeni idatha yombhalo.
• Uma udinga ukugcina noma ukuthuthukisa amasistimu wefa abhalwe ku-Perl.
• Uma ufuna ulimi olunamandla lokukhohlisa umbhalo nezinkulumo ezivamile.

Ukwengeza, ukufunda i-Perl kungakhulisa ukuqonda kwakho imiqondo yokuhlela futhi kukunike imibono ehlukile engaba wusizo kwezinye izilimi.

Kodwa-ke, uma ukugxila kwakho kuwukuthuthukiswa kwewebhu yesimanje noma isayensi yedatha, ungathola amanye amathuba nezisetshenziswa ezisesikhathini samanje ngezilimi ezinjengePython, JavaScript, noma iRuby.

Ekugcineni, i-Perl ingelinye nje ithuluzi kukhithi yomhleli. Ulwazi lwakho lungaba yimpahla ebalulekile, kodwa kubalulekile ukuhlola izinjongo zakho kanye nezidingo zemakethe lapho uthatha isinqumo sokutshala isikhathi sokukufunda.

UCABANGANI? Uke waba nesipiliyoni ngePerl noma ucabanga ukukufunda? Yabelana ngemicabango yakho nolwazi lwakho kumazwana angezansi.

Imibuzo Evame Ukubuzwa Ngolimi Lokuhlela Lwe-Perl

Ukugcwalisa imininingwane enikeziwe, nansi eminye imibuzo evame ukubuzwa mayelana ne-Perl:

Ingabe i-Perl iwulimi oluhlanganisiwe noma oluhunyushiwe?

I-Perl ngokuyinhloko iwulimi olutolikiwe, okusho ukuthi ikhodi yomthombo ihunyushwa futhi isetshenziswe umugqa ngomugqa ngesikhathi sokusebenza. Nokho, i-Perl yenza ukuhlanganiswa kwangaphakathi ngaphambi kokubulawa, okuthuthukisa ukusebenza. Ukwengeza, kukhona amathuluzi afana ne-PAR (Perl Archive Toolkit) akuvumela ukuthi udale okusebenzisekayo okuzimele kusuka emibhalweni ye-Perl.

Uyini umehluko phakathi kwePerl nePerl 6 (manje eyaziwa ngokuthi iRaku)?

I-Perl 6 ekuqaleni yayihloswe njengenguqulo elandelayo ye-Perl. Nokho, phakathi nokuthuthuka kwayo, yaba ulimi oluhlukile olunomehluko omkhulu ku-syntax nokuklama. Ngo-2019, i-Perl 6 yaqanjwa kabusha ngokusemthethweni ngokuthi i-Raku ukugwema ukudideka. I-Perl (eyaziwa nangokuthi i-Perl 5) ne-Raku manje ziyizilimi ezihlukene, nakuba zihlobene nefilosofi.

Isho ukuthini ngempela i-PERL?

I-PERL ekuqaleni yayimele "Ulimi Olusebenzayo Lokukhipha Nokubika". Kodwa-ke, ngokuhamba kwesikhathi, le ncazelo isiphenduke i-backstory. Namuhla, i-Perl ithathwa njengegama elifanele hhayi isifinyezo. U-Larry Wall, umdali we-Perl, uphinde waphakamisa ukuthi ingase imele "I-Pathologically Eclectic Rubbish Lister", ukuvuma ngekhanda okuhlekisayo ekusebenziseni izinto ezihlukahlukene zolimi.

Ingabe i-Perl ilungele abaqalayo?

Ulimi lohlelo lwe-Perl lungaba inselele kwabaqalayo ngenxa ye-syntax yalo eguquguqukayo kanye nenani elikhulu lezici ezakhelwe ngaphakathi. Kodwa-ke, iphinde inikeze ijika lokufunda kancane kancane, okuvumela abasanda kuhlanganyela ukuthi baqale ngemiqondo eyisisekelo futhi bathuthukele ezicini eziyinkimbinkimbi ngokuhamba kwesikhathi. Kulabo abathanda ukucubungula amagama noma ukuphathwa kwezinhlelo, i-Perl ingaba inketho yokufunda enhle kakhulu.

Yiziphi izinkampani eziphawulekayo ezisasebenzisa i-Perl?

Naphezu kokwehla kwayo ekudumeni, izinkampani eziningana ezinkulu zisasebenzisa i-Perl emisebenzini yazo:

1. Ukubhuka: Iningi lengqalasizinda yayo engemuva yakhiwe ePerl.
2. DuckDuckGo: Injini yokusesha isebenzisa i-Perl ezingxenyeni ezimbalwa zesistimu yayo.
3. Craigslist: Inkundla yezikhangiso ehlukanisiwe isebenzisa i-Perl kakhulu.
4. IMDb: Isizindalwazi samamuvi aku-inthanethi sisebenzisa i-Perl emisebenzini yayo eminingi.
5. BBC:Inhlangano yabezindaba yaseBrithani isebenzisa i-Perl ezinhlelweni zayo zangaphakathi ezimbalwa.

Ijubane likaPerl liqhathaniswa kanjani nezinye izilimi ezihunyushiwe?

Mayelana nesivinini sokubulala, i-Perl ngokuvamile iwela ebangeni elifanayo ne-Python ne-Ruby. Ishesha kunezilimi zokubhala ezimsulwa njenge-Bash, kodwa ngokuvamile ihamba kancane kunezilimi ezihlanganisiwe ezifana no-C noma i-Rust. Ijubane likaPerl lingahluka kakhulu kuye ngohlobo lomsebenzi nokuthi ikhodi ibhalwa kanjani. Ngokucubungula umbhalo nokusebenza kwenkulumo evamile, i-Perl ivame ukusebenza kahle kakhulu.

# Ejemplo de un benchmark simple en Perl
use Benchmark qw(:all);

timethis(1_000_000, sub {
    my $texto = "El lenguaje de programación Perl es rápido para procesar texto";
    $texto =~ s/Perl/Perl 5/g;
});

Le khodi izofaka esikhundleni sombhalo izikhathi eziyisigidi, inikeze isilinganiso sokusebenza kuka-Perl emisebenzini yokucubungula umbhalo.

Siyini isimo samanje sokuthuthukiswa kwePerl?

I-Perl iyaqhubeka nokuthuthukiswa. Inguqulo yakamuva ezinzile ye-Perl 5 ikhishwa minyaka yonke, nezibuyekezo ezijwayelekile zokulungisa. Umphakathi we-Perl usebenza ku-Perl 7, ethembisa ukuba noshintsho olushelelayo ukusuka ku-Perl 5, ukugcina ukuhambisana ngenkathi yethula ukuthuthuka okubalulekile.

Ukuthuthukiswa kwe-Perl kuphathwa ngenqubo ebizwa ngokuthi "ama-Perl 5 Porters," iqembu labathuthukisi abazithandelayo abagcina futhi bathuthukise ulimi. Ungalandela ukuthuthukiswa endaweni yokugcina i-Perl GitHub.

Ngingaqala kanjani ukufunda i-Perl?

Uma ungathanda ukufunda i-Perl, nazi ezinye izinsiza ukuze uqalise:

1. Funda Perl: Isizinda sokufunda se-Perl esisemthethweni, esinezifundo nezisetshenziswa zabaqalayo.
2. Perl Maven: Inikeza izifundo zamahhala nezifundo ezikhokhelwayo zawo wonke amazinga.
3. I-Perl Track Yokuzivocavoca: Inkundla yokusebenzisana yokuzijwayeza i-Perl nabeluleki bomphakathi.
4. Perl ku-Rosetta Code: Qhathanisa izixazululo ze-Perl nezinye izilimi zemisebenzi evamile yokuhlela.

Khumbula, ukuzijwayeza njalo nokubamba iqhaza komphakathi kuyisihluthulelo sokufunda noma yiluphi ulimi lokuhlela, okuhlanganisa ne-Perl.

Sengiphetha, ulimi lohlelo lwe-Perl, naphezu kokuba selulahlekelwe ukubusa kwalo kwangaphambili, luhlala luyithuluzi elibalulekile kunoma iyiphi iqoqo labahleli bohlelo. Amandla ayo okucubungula amagama, ukuguquguquka, kanye nesisekelo semojuli ebanzi kuyenza ibe ukukhetha okuqinile kwemisebenzi ethile. Kungakhathaliseki ukuthi unquma ukucwila ku-Perl noma umane wandise ulwazi lwakho ngayo, sithemba ukuthi lesi sihloko sikunikeze ukubuka konke okuphelele nokuwusizo kwalolu limi oluhehayo.