Class 22 — Wednesday October 14

It's a fact, look it up

Really need to know — What lies farther down the road — Need a future map

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Look both ways

• Back or ahead

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Agenda

• hacer 뭔가 frais oggi

• Get ready to move on

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Updated 10/14/2020

• Module url.py

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Examples

• Program que_dijiste.py (need to redownload)

• Problem what_did_you_say.py

• Problem spell_rite.py

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To do

• Look over artifacts

• Do homework

• Submit program spell_rite.py today

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Huh?

• dónde está mi lápiz

• donde esta mi lapiz

• hvor 是 该 tumili maleri av Munch

• est la baguette fraîche aujourd'hui

• est la baguette fraiche aujourd'hui

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Babelfish — a translation dictionary in CSV format

a, a

aab, water

aamadam, came

aamadand, came

aamad, came

aamadi, came

aamadid, came

aamadim, came

aanhaa, they

aan, it

aashpaz-khaaneh, kitchen

abajo, down

...

zauberformel, spell

zauberhaft, enchanting

zehn, ten

zeichen, characters

zeigt, show

ziba, beautiful

zur, to

zu, to

zwei, two

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Problem que_dijiste.py

• Reads and prints the babelfish web file as a translation dictionary

Program run

{'aab': 'water', 'aamadam': 'came', 'aamadand': 'came', 'aamad': 'came', 'aamadi': 'came',

...

'wollen': 'want', 'wort': 'word', 'wo': 'where', 'y': 'and', 'yo': 'I', 'Yo': 'I', 'yun': 'wool', 'yün': 'wool', 'zahl': 'number', 'zauberformel': 'spell', 'zauberhaft': 'enchanting', 'zehn': 'ten', 'zeichen': 'characters', 'zeigt': 'show', 'ziba': 'beautiful', 'zur': 'to', 'zu': 'to', 'zwei': 'two', '是': 'is', '该': 'the'}

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Problem text translation using babelfish dictionary

Goal

• Produce a program using translate text to English.

Some possible interactions

Enter phrase to be translated: dónde está mi lápiz

where is my pencil

Enter phrase to be translated: est la baguette fraîche aujourd'hui

is the baguatte fresh today

Enter phrase to be translated: je %#@#&# ból svayam !!

I ?%#@#&#? hurt myself ?!!?

Enter phrase to be translated: hvor er den skriget maleri af Munch

where is the scream painting by Münch

Enter phrase to be translated: hacer 뭔가 frais oggi

do something cool today

Brainstorming

• How should we store the translations?

• How should we store the input?

• How should we store the result?

• What types of loops do we need?

Discussion and requirements

• Important data structures that the program needs to accomplish its task.

• List of words making up the user text;

• Dictionary loaded with the entries from the babelfish web file;

• Translation accumulation.

• If a word to be translated is not in the translation dictionary, then its translation is that word surrounded by question marks.

• For example, French word heureuse for happiness is not in the babelfish dictionary, so it would be translated as ?heureuse?.

• The translation of the user text should be accumulated word by word.

• The translation should be displayed with a single print() statement.

• Because the accumulation is a string, then the accumulator should be initilized to "".

• When accumulating the translation, make sure there is a space following each word in the translation.

• To produce the accumulation, each word in the user-supplied text needs to be processed one by one.

• Every user word contributes to the translation.

• If a word is known to the babelish dictionary, its translation is added to the accumulation.

• If instead a word is unknown, the word surrounded by question marks is added to the accumulation.

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Spell correction — program spell_rite.py

Web resources

• most-common — list of most commonly used words

• corrections — list of most common misspellings and their likely correction

Goal

• Produce a spell-checked version of user text that echos the user text word by word, unless a word is not known to be spelled correctly

• If a correction is known, the correction is offered within asterisks

• If insteadn no correction is known, the word is flagged with quotation marks

Some possible program interactions

Enter text: I am as happy as I can be

I am as happy as I can be

Enter text: I am a Newyorker who is livin in virginia

I am a *New Yorker* who is ?livin? in *Virginia*

Enter text:

 

Brain storming

• Problem has great similarity with text translation.

• If a word is spelled correctly, then it is added to the accumulation.

• If instead a word has an unknown spelling, then if it is known to the corrections dictionary then the correction surrounded by asterisks is added to the accumulation.

• Otherwise, if a word has an unknown spelling and is unknown to the corrections dictionary, then the word surrounded by quotation marks is added to the accumulation.

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Babelfish — Hitchhiker's Guide to the Galaxy

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Ziggurat of Ur

 

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© 2020 Jim Cohoon

Resources from previous semesters are available.