// Function Name : f_is_punctuation
// Argument Name : as_source, Arg Type : String, Pass By : Value
// Return Type : Boolean
///////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Description: Determines whether a string contains only punctuation
// characters.
///////////////////////////////////////////////////////////////////////////////////////////////////////////////
Long ll_count=0
Long ll_length
Char lc_char[]
Integer li_ascii
//Check parameters
If IsNull(as_source) Then
boolean lb_null
SetNull(lb_null)
Return lb_null
End If
//Get the length
ll_length = Len (as_source)
//Check for at least one character
If ll_length=0 Then
Return False
End If
//Move string into array of chars
lc_char = as_source
//Perform loop around all characters
//Quit loop if Non Punctuation character is found
Do While ll_count < ll_length
ll_count ++
//Get ASC code of character.
li_ascii = Asc (lc_char[ll_count])
If li_ascii=33 Or /* '!' */ &
li_ascii=34 Or /* '"' */ &
li_ascii=39 Or /* ''' */ &
li_ascii=44 Or /* ',' */ &
li_ascii=46 Or /* '.' */ &
li_ascii=58 Or /* ':' */ &
li_ascii=59 Or /* ';' */ &
li_ascii=63 Then /* '?' */
//Character is a punctuation.
//Continue with the next character.
Else
Return False
End If
Loop
// Entire string is punctuation.
Return True
// Argument Name : as_source, Arg Type : String, Pass By : Value
// Return Type : Boolean
///////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Description: Determines whether a string contains only punctuation
// characters.
///////////////////////////////////////////////////////////////////////////////////////////////////////////////
Long ll_count=0
Long ll_length
Char lc_char[]
Integer li_ascii
//Check parameters
If IsNull(as_source) Then
boolean lb_null
SetNull(lb_null)
Return lb_null
End If
//Get the length
ll_length = Len (as_source)
//Check for at least one character
If ll_length=0 Then
Return False
End If
//Move string into array of chars
lc_char = as_source
//Perform loop around all characters
//Quit loop if Non Punctuation character is found
Do While ll_count < ll_length
ll_count ++
//Get ASC code of character.
li_ascii = Asc (lc_char[ll_count])
If li_ascii=33 Or /* '!' */ &
li_ascii=34 Or /* '"' */ &
li_ascii=39 Or /* ''' */ &
li_ascii=44 Or /* ',' */ &
li_ascii=46 Or /* '.' */ &
li_ascii=58 Or /* ':' */ &
li_ascii=59 Or /* ';' */ &
li_ascii=63 Then /* '?' */
//Character is a punctuation.
//Continue with the next character.
Else
Return False
End If
Loop
// Entire string is punctuation.
Return True
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