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He aha ka parsing a me ka parser

He aha ka parsing a me ka parser hoihoi i nā poʻe he nui. E hoʻomaopopo ʻia ke kaʻao ʻana ma ke ʻano he hana i ka wā e kālailai ʻia ai kahi palapala mai ka manaʻo o ka hopunaʻōlelo a me ka syntax. ʻO kahi parser (syntactic analyzer) kahi ʻāpana o ka papahana i kuleana no ke aʻo ʻana i ka ʻike ma ka mode automate a me ka ʻimi ʻana i nā ʻāpana pono.

No ke aha ka parsing?

ʻAe ʻo Parsing iā ʻoe e hana i ka nui o ka ʻike i ka manawa pōkole loa. Kuhi kēia i ka loiloi syntactic synthetic o ka ʻike i kau ʻia ma nā ʻaoʻao pūnaewele. No laila, ʻoi aku ka maikaʻi o ka haʻi ʻana ma mua o ka hana lima e koi ai i ka manawa a me ka ikaika.

Loaʻa nā Parsers i kēia mau hiki:

  • Ke hōʻano hou nei i ka ʻikepili, ʻae iā ʻoe e loaʻa i ka ʻike hou loa (nā helu hoʻololi, nā nūhou, ka wānana o ka wā)
  • ʻOhi a me ka hana hou ʻana i nā mea mai nā pūnaewele ʻē aʻe no ka hōʻike ma kāu papahana Pūnaewele. ʻO nā mea i loaʻa ma o ka pā ʻana e kākau hou ʻia.
  • Hoʻohui i nā kahawai ʻikepili. Loaʻa ka nui o ka ʻike mai nā kumuwaiwai like ʻole, kahi kūpono loa i ka hoʻopiha ʻana i nā pūnaewele nūhou.
  • Hoʻonui wikiwiki ʻo Parsing i ka hana me nā huaʻōlelo a i ʻole nā ​​huaʻōlelo. Mahalo i kēia, hiki ke koho koke i nā noi kūpono no ka hoʻolaha ʻana i ka papahana.

ʻAno Parser

ʻO ka loaʻa ʻana o ka ʻike ma ka Pūnaewele kahi hana paʻakikī loa, hana maʻamau a me ka wā lōʻihi. Hiki i nā Parsers ke hana, automating a me ka hoʻokaʻawale ʻana i ka ʻāpana liona o nā kumuwaiwai pūnaewele i hoʻokahi lā wale nō e ʻimi ai i ka ʻike e pono ai.

Hāʻawi ʻo Parsing iā ʻoe e kaohi i ke kū hoʻokahi o nā ʻatikala e ka hoʻokūkū wikiwiki ʻana a me ka pololei i nā ʻike o nā ʻaoʻao pūnaewele me nā ʻatikala i hoʻolako ʻia.

I kēia lā, hiki iā ʻoe ke hoʻoiho a kūʻai mai i ka nui o nā polokalamu kaha ʻana i ka pono, e like me Import.io, Webhose.io, Scrapinghub, ParseHub, Spinn3r a me nā mea ʻē aʻe.

He aha ka parser pūnaewele

Lawe ʻia ka parser o nā pūnaewele e like me ka papahana i hoʻokumu ʻia, ke hoʻohālikelike nei i kekahi mau hoʻohui o nā huaʻōlelo me nā mea i loaʻa ma ka Pūnaewele.

Pehea e hana ai me ka ʻike i loaʻa i kākau ʻia i ka laina kauoha, i kapa ʻia ʻo "expression regular". Hoʻokumu ʻia ia mai nā hōʻailona a hoʻonohonoho i ke ʻano huli.

Hele ka pūnaewele parser ma nā ʻano he nui:

  • Ke ʻimi nei i ka ʻike i koi ʻia i ka mana kumu: ke kiʻi ʻana i ke code o ka pūnaewele, hoʻoiho, hoʻoiho.
  • Loaʻa nā hana mai ke code o kahi ʻaoʻao pūnaewele, me ka unuhi ʻana o nā mea e pono ai mai ka code program o ka ʻaoʻao.
  • Ka hana ʻana i kahi hōʻike e like me nā koi i hoʻokumu ʻia (hoʻopaʻa pono ʻana i ka ʻike i loko o nā waihona, nā ʻatikala).

E nānā i ka wikiō: This isnt just for streamers! Elgato Stream Deck Review (Mei 2025).

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