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8. Merika Akomh Ma8hmata apo to Fetchmail.

Prin epistrecoyme se 8emata genikou endiaferontos paragwghs logismikou, yparxoyn akomh merika ma8hmata ap' thn empeiria toy fetchmail gia na melethsoyme.

H suntajh twn arxeiwn rc perilambanei proairetikes desmeymenes lejeis "8oruboy" [noise keyword] poy agnoountai plhrws apo ton programmatisth. H suntajh Agglikou tupoy poy protimoun einai polu pio anagnwsimh ap' ta paradosiaka lita zeugh timwn desmeymenwn lejewn poy pairnei kaneis otan apogymnwsei aytes tis desmeymenes lejeis.

Ayto arxise san ena peirama, otan proseja poso polu oi anakoinwseis twn arxeiwn rc arxizan na moiazoyn mia epibeblhmenh mikrh glwssa. (Aytos einai o logos poy allaja thn arxikh desmeymenh lejh toy popclient apo "server" se "poll").

Moy fainotan oti an prospa8ousa na kanw ayth thn epibeblhmenh mikrh glwssa na moiazei me ta Agglika 8a ginotan pio euxrhsth. Omws, an kai eimai afosiwmenos opados ths sxolhs sxediasmou poy apokaleite "kaneto mia glwssa", opws mas paradeigmatizoyn to Emacs h HTML kai polles mhxanes basewn dedomenwn, den eimai spoydaios opados ths suntajhs Agglikou tupoy.

Oi paradosiakoi programmatistes eteinan na eynooun suntajh elegxoy poy einai polu akribhs kai sympaghs kai den eixan ka8oloy perittes epanalhceis. Ayto einai mia politismikh klhronomia apo thn epoxh poy oi poroi twn ypologistwn hsan akriboi, wste h analysh twn stadiwn na einai oso to dynaton pio fthnh ki aplh. Ta Agglika, me peripoy 50% perittwn epanalhcewn, fainotan tote polu akatallhlo montelo.

Den einai aytos o logos poy apofeugw thn suntajh Agglikou tupoy. Thn anaferw edw mono gia na thn katarghsw. Exontas fthnous kukloys kai pyrhna h lakwnikothta den 8a eprepe na einai aytoskopos. Shmera, einai pio shmantiko h glwssa na einai bolikh gia toys an8rwpoys apo to na einai fthnh gia toys ypologistes.

Yparxoyn, omws, sobaroi logoi na anhsyxoume. Enas, einai to kostos poy dhmioyrgei h periplokh twn analymenwn stadiwn-kaneis den 8elei na ayjhsei ayth thn periplokh sto shmeio na einai phgh bugs kai sugxyshs twn xrhstwn. Enas allos einai oti, prospa8wntas na kanoyme mia glwssa suntajhs na moiazei me Agglika syxna apaiteitai ta "Agglika" poy mila ayth na jefeugoyn arketa apo ka8e gnwsth morfh, toso wste h epifaneiakh omoiothta pros thn fysikh glwssa na einai toso sygxytikh oso mporei na einai ka8e paradosiakh suntajh. (Ayto to synanta kaneis se polles emporikes glwsses poy efarmozoyn anazhthsh mesw basewn dedomenwn kai tis legomenes glwsses "tetarths genias".

H suntajh elegxoy toy fetchmail fainetai na apofeugei ayta ta problhmata, epeidh o xwros kyriarxias ths glwssas toy einai polu periorismenos. Den einai mia genikh glwssa. Ta pragmata poy leei ayth den einai toso periplegmena, wste yparxei mikrh pi8anothta sugxyshs otan kinoumaste metaju enos mikrou yposynoloy ths Agglikhs kai ths pragmatikhs glwssas elegxoy. Edw yparxoyn eyrutera didagmata:

16. Otan mia glwssa den einai plhrhs kata Turing (Turing-complete), tote h kaluterh lush einai h syntaktikh zaxarh.

Ena allo ma8hma einai gia thn asafeia ths asfaleias. Merikoi xrhstes toy fetchmail moy zhthsan na kanw allages sto programma wste na apo8hkeuei kryptografhmenoys kwdikous sto arxeio rc, wste na mhn mporoun na toys doyn tyxaia oi adiakritoi.

Den to ekana, epeidh kati tetoio den prosferei asfaleia. Opoiosdhpote exei adeia na diabasei to arxeio rc 8a mporei na xrhsimopoihsei to fetchmail-ki an caxnoyn ton kwdika sas 8a mporoun na apomonwsoyn ton apokwdikopoihth mesa apo ton idio ton kwdika toy fetchmail.

Opoia kryptografhsh kwdika sto arxeio .fetchmailrc ki an epixeirh8ei dinei mia esfalmenh ais8hsh asfaleias. O genikos kanonas einai o ejhs:

17. Ena susthma asfaleias einai toso asfales oso einai kai to mystiko toy. Prosoxh sta ceydo-mystika.


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