Word Processing

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Word Processing
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Spell checking

• How does Word know that storey is misspelled?

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Spell checking
Abraham Angry Balloon Coverlet . .
. Polypeptide . . . Store Story Stranger . .
. Zebra

• How does Word know that storey is misspelled?
• Look up every word in a dictionary. Report the
  ones that are not there.

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Spellchecker implemented in EXCEL
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• IF(ISNA( MATCH(A3,D3D24,0) ),"NO","YES")

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• IF(ISNA( MATCH(A3,D3D24,0) ),"NO","YES")

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Spellchecker implemented in EXCEL
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Spellchecker implemented in EXCEL
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Spellchecker implemented in EXCEL
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What does this do?
Add storey to the dictionary
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What does this do?
Add storey to a temporary list of words to
ignore
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How does it pick the words for this list?
Minimal edit distance How many characters must
be changed to match a dictionary word?
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Spell checking

• How does it know what characters form a word?
• Any sequence of letters with no spaces, digits or
  punctuation
• (cgtA and cltZ) or (cgta and cltz)

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Document trees
document
section
para
para
The reason that they dont like chocolate is
because of a dog that they had when they were
little.
This is the beginning of a lovely story about two
people that dont like chocolate.
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Centered
document
Justified
section
para
para
This is the beginning of a lovely story about two
people that dont like
bold
The reason that they dont like chocolate is
because of a dog that they had when they were
little.
chocolate.
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Where in the tree does the centering information
go?
document
section
para
para
This is the beginning of a lovely story about two
people that dont like
bold
The reason that they dont like chocolate is
because of a dog that they had when they were
little.
chocolate.
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Where in the tree does the centering information
go?
document
section
para
align
para
centered
This is the beginning of a lovely story about two
people that dont like
bold
The reason that they dont like chocolate is
because of a dog that they had when they were
little.
chocolate.
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How will alignment change if I enter BACKSPACE?
document
section
para
align
para
centered
This is the beginning of a lovely story about two
people that dont like
bold
The reason that they dont like chocolate is
because of a dog that they had when they were
little.
chocolate.
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How will alignment change if I enter BACKSPACE?
document
section
para
align
para
centered
This is the beginning of a lovely story about two
people that dont like
bold
The reason that they dont like chocolate is
because of a dog that they had when they were
little.
chocolate.
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How will alignment change if I enter BACKSPACE?
document
section
para
align
centered
This is the beginning of a lovely story about two
people that dont like
bold
The reason that they dont like chocolate is
because of a dog that they had when they were
little.
chocolate.
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How will bolding change if I enter BACKSPACE 3
times?
document
section
para
align
centered
This is the beginning of a lovely story about two
people that dont like
bold
The reason that they dont like chocolate is
because of a dog that they had when they were
little.
chocolate.
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How will bolding change if I enter BACKSPACE 3
times?
document
section
para
align
centered
This is the beginning of a lovely story about two
people that dont like
bold
The reason that they dont like chocolate is
because of a dog that they had when they were
little.
chocola
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What will happen to alignment if I hit ENTER and
make a new paragraph?
document
section
para
align
centered
This is the beginning of a lovely story about two
people that dont like
bold
The reason that they dont like chocolate is
because of a dog that they had when they were
little.
chocola
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What will happen to alignment if I hit ENTER and
make a new paragraph?
document
section
para
para
align
align
centered
centered
This is the beginning of a lovely story about two
people that dont like
bold
The reason that they dont like chocolate is
because of a dog that they had when they were
little.
chocola
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Style attributes

• Different attributes are stored a different
  levels of the document tree
• Document
• Section
• Paragraph
• Character

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Style attributes at which level?

• Document
• Section
• Paragraph
• Character

Underline
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Style attributes at which level?

• Document
• Section
• Paragraph
• Character

Indentation
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Style attributes at which level?

• Document
• Section
• Paragraph
• Character

Font size
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Style attributes at which level?

• Document
• Section
• Paragraph
• Character

Highlight Color
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Style attributes at which level?

• Document
• Section
• Paragraph
• Character

Tabs
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Style attributes at which level?

• Document
• Section
• Paragraph
• Character

Bulleted Lists
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Style attributes at which level?

• Document
• Section
• Paragraph
• Character

Page Headers
Headers apply to many paragraphs
Different headers in different chapters of a book
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Style attributes at which level?

• Document
• Section
• Paragraph
• Character

Margins
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Different Views
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Outline View
Heading 1
Some text in heading 1
I am heading 2
Another Heading 2
This is some other text
Some more text
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Outline View
Double click here
Heading 1
Some text in heading 1
I am heading 2
Another Heading 2
This is some other text
Some more text
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Review

• Spell checking
• Find each word (sequence of letters)
• Look up each word in the dictionary
• Dictionary is just a list of words
• If it doesnt match find similar words

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Review

• Style information
• Document trees
• Different information at different levels
• Document
• Section
• Margins, Headers, Footers, Page numbers
• Paragraph
• Alignment, indentation, bullets
• Characters
• Font, bold, color