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StringTools

  

WordStart

  

locate the beginning of a word

  

WordEnd

  

locate the end of a word

  

WordContaining

  

return the word containing a given index

 

Calling Sequence

Parameters

Description

Examples

Calling Sequence

WordStart( s, index )

WordEnd( s, index )

WordContaining( s, index )

Parameters

s

-

Maple string

index

-

integer; a valid index into the string s

Description

• 

The WordStart command returns the index of the beginning (first letter) of the word containing the index index, if any. If the second argument index does not occur in a word in the string s, then the value 0 is returned.

• 

The WordEnd command returns the index of the end (last letter) of the word containing the index index, if any. If the second argument index does not occur in a word in the string s, then the value 0 is returned.

• 

The WordContaining command returns the word containing the index index, if index lies within a word in the string s, or the empty string , otherwise.

• 

For all three commands, the second argument index must be a valid index into the string presented as the first argument.

• 

If the index index lies within a word in the string s, then WordContaining( s, index ) = s[ WordStart( s, index ) .. WordEnd( s, index ) ].

Examples

withStringTools:

WordStartVoi che sapete, che cosa e amor, donne, vedete, s'io l'ho nel cor.,7

5

(1)

WordEndVoi che sapete, che cosa e amor, donne, vedete, s'io l'ho nel cor.,7

7

(2)

WordContainingVoi che sapete, che cosa e amor, donne, vedete, s'io l'ho nel cor.,7

che

(3)

See Also

string

StringTools

StringTools[Split]