String Functions

Len Function-

Returns the number of characters  in a string or the number of bytes required to 
store a variable.

Syntax: Len(string | varname)

Arguments:

 string:  Any valid string expression. If string contains Null, Null is returned.

Varname:  Any valid variable name. If varname contains Null, Null is returned.

Example:

Str="Welcome to the World of QTP"

Print Len(Str) 

' Output --> 27

Print  Len("Good Morning") 

' Output--> 12

LCase Function-

Returns a string that has been converted to lowercase.

Syntax: LCase(string)

Arguments:

 String:  Any valid string expression. If string contains Null, Null is returned.

Example:
Str="Welcome to the World of QTP"

Print LCase(Str)
'Output --> welcome to the world of qtp

Print  Lcase("Good Morning")
'Output --> good morning

UCase Function-

Returns a string that has been converted to uppercase.

Syntax: UCase(string)

Arguments:

String:  Any valid string expression. If string contains Null, Null is returned.

Example:

Str="Welcome to the World of QTP"

Print Ucase(Str)

'Output --> WELCOME TO THE WORLD OF QTP

Print  Ucase("Good Morning")

'Output --> GOOD MORNING

Left Function-

Returns a specified number of characters from the left side of a string.

Syntax: Left(string, length)

Arguments:

String:  String expression from which the leftmost characters are returned. 

If string contains Null, Null is returned.

length:  Numeric expression indicating how many characters to return. If 0, 

a zero-length string("") is returned. If greater than or equal to the number of 

characters in string, the entire string is returned.

Example:
Str="Welcome to the World of QTP"
print  Left(Str,3)
'Output --> Wel

Print Left("Good Morning",4)
'Output --> Good

Right Function-

Returns a specified number of characters from the right side of a string.

Syntax: Right(string, length)

Arguments:
String:  String expression from which the rightmost characters are returned.
If string contains Null, Null is returned.
length: Numeric expression indicating how many characters to return. If 0, 
a zero-length string is returned. If greater than or equal  to the number of characters 
in string, the entire string is returned.

Example:
Str="Welcome to the World of QTP"
print  Right(Str,12)
'Output --> World of QTP

Print Right("Good Morning",7)
'Output -->  Morning

Mid Function-
Returns a specified number of characters from a string.

Syntax: Mid(string, start[, length])

Arguments:
String:  String expression from which characters are returned.If string contains Null.
Null is returned.
Start: Character position in string at which the part to be taken begins. If start is greater 
than the number of characters in string, Mid returns a zero-length string ("").
length: Number of characters to return. If omitted or if there are fewer than 

length characters in the text (including the character at start), 

all characters from the start position to the end of the string are returned.

Example:
Str="Welcome to the World of QTP"
print  Mid(Str,9,12)
'Output --> to the World

Print Mid("Good Morning",6,7)
'Output --> Morning

Print Mid("Good Morning",6)
'Output --> Morning

Replace Function-

Returns a string in which a specified substring has been replaced with another

substring a specified number of times.

 Syntax: Replace(expression, find, replacewith[, start[, count[, compare]]])

Arguments:

expression:  (Required) String expression containing substring to replace.
find: (Required) Substring being searched for.
replacewith: (Required) Replacement substring.
start: (Optional) Position within expression where substring search is to begin.If 
omitted, 1 is assumed. Must be used in conjunction with count.
count: (Optional) Number of substring substitutions to perform.If omitted, the default 
value is -1, which means make all possible substitutions. Must be used in conjunction 
with start.

compare: (Optional) Numeric value indicating the kind of comparison to use when 
evaluating substrings. See Settings section for values. If omitted, the default value is 0,
which means perform a binary comparison.

Example:
Str="Welcome to the World of QTP"

print Replace(Str, "to","into")                                                   

'Output -->     Welcome into the World of QTP

Print Replace("Good Morning","Morning","Night")               

'Output -->  Good Night

Print Replace("Quick Test ProfeSsional","s","x",5,3,0)           

'Output -->  k Text ProfeSxional

Print Replace("Quick Test ProfeSsional","s","x",5,3,1)                   

'Output -->    k Text Profexxional

Space Function-

Returns a string consisting of the specified number of spaces.

Syntax: Space(number)

Arguments:
number: number of spaces you want in the string.

Example:
Str="Welcome to the World of QTP"
'Space

Str1="Welcome"

Str2="to the World"

Str3="of QTP"

Print  Str1 & Space(2) & Str2 & Space(2) &Str3

'Output-->Welcome  to the World  of QTP

Split Function-

Returns a zero-based, one-dimensional array containing a specified number of 
substrings.

Syntax: Split(expression[, delimiter[, count[, compare]]])

Arguments:

expression: (Required) String expression containing substrings and delimiters. If 
expression is a zero-length string, Split returns an empty array, that is, an array 
with no elements and no data.
delimiter: (Optional) String character used to identify substring limits. If omitted,the 
space character (" ") is assumed to be the  delimiter. If delimiter is a zero-length string,
a single-element array containing the entire expression string is returned.
count:   (Optional) Number of substrings to be returned; -1 indicates that all 
substrings are returned.
compare: (Optional) Numeric value indicating the kind of comparison to use when 
evaluating substrings.

Example:

'Space as Delimiter

Str="Welcome to the World of QTP"

'Split

SArray=Split(Str," ",-1)

For  i= 0 to UBound(SArray)

    Print  SArray(i)

Next

'Comma As Delimitter

Str="Welcome,to,the,World,of,QTP"

'Split

SArray=Split(Str,",",-1)

For  i= 0 to UBound(SArray)

    Print  SArray(i)

Next

StrComp Function

StrComp: Returns a value indicating the result of a string comparison.

Syntax: StrComp(string1, string2[, compare])

 Arguments:

 string1: (Required) Any valid string expression.

string2: (Required) Any valid string expression.

compare:  (Optional) Numeric value indicating the kind of comparison to use when 
evaluating strings. If omitted, a binary comparison is performed.

 Example:

Str="Welcome to the World of QTP"

StrComp

Str1 = "QTP"

Str2 = "qtp"                                  

Print StrComp(Str1, Str2, 1)                          

'Output--> Returns 0 , which means Str1 is equal to Str2 for  textual comparison

Print StrComp(Str1, Str2, 0)                          

'Output--> Returns -1 , which means Str2 is  greater than  Str1 for  Binary comparison

Print StrComp(Str2, Str1)                              

'Output-->Returns 1, which means Str2 is  greater than  Str1 for  Binary comparison

Print StrComp(Str1, Str2)                                

'Output-->Returns -1, which means Str1 is  less than  Str2  for  Binary comparison

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StrReverse Function

StrReverse: Returns a string in which the character order of a specified string
is reversed.

Syntax: StrReverse(string1)

Arguments:

 string1: string whose characters are to be reversed. If string1 is a zero-length 
string (""), a zero-length string is returned. If string1 is Null, an error occurs.

Example:

Str="Welcome to the World of QTP"

StrReverse

print  StrReverse(Str)                                

'Output-->PTQ fo dlroW eht ot emocleW

Print  StrReverse("Quick Test ProfeSsional")                 

'Output-->lanoisSeforP tseT kciuQ

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LTrim; RTrim; and Trim Functions

LTrim,RTrim and Trim: Returns a copy of a string without leading spaces (LTrim), 
trailing spaces (RTrim), or both leading and trailing spaces (Trim).

Syntax:  LTrim(string)

RTrim(string)

Trim(string)

Arguments:

string:  The string argument is any valid string expression. If string contains Null, 
Null is returned.

Example:

'LTrim

Print Ltrim("Welcome to QTP World")            

 'Output-->"Welcome to QTP World

Example:

'RTrim 

Print Rtrim("Welcome to QTP World")                   

'Output--> "Welcome to QTP World"

Example:

'Trim

Print     trim("Welcome to QTP World")               

'Output-->"Welcome to QTP World"

InStr Function

InStr: Returns the position of the first occurrence of one string within another.

Syntax: InStr([start, ]string1, string2[, compare])

Arguments:

start:    (Optional) Numeric expression that sets the starting position for each search. 

If omitted, 

search begins at the first character position. If start contains Null, an error occurs. 

The start argument is required if compare is specified.

 string1: (Required) String expression being searched.

string2: (Required) String expression searched for.

compare: (Optional) Numeric value indicating the kind of comparison to use when 
evaluating substrings.

Example:

Str="How do you DO ?"

'InStr

Print Instr(1, Str, "DO", 1)               

'Output--> 5 , which means  it found the string in 5th position for  textual comparison

Print Instr(1, Str, "DO", 0)               

'Output--> 12 , which means  it found the string in 12th position for binary comparison

Print Instr(6, Str, "do", 0)                   

'Output--> 0 , which means  it  didnot found the string after the 6th position  for 
binary comparison

InStrRev Function

InStrRev: Returns the position of an occurrence of one string within another, 

from the end of string.

 Syntax: InStrRev(string1, string2[, start[, compare]])

 Arguments:

 string1: (Required) String expression being searched.

string2: (Required) String expression being searched for.

start:  (Optional) Numeric expression that sets the starting position for each search. 

If omitted, -1 is used, which means that the search begins at the last character position. 

If start contains Null, an error occurs.

compare: (Optional) Numeric value indicating the kind of comparison to use when

 evaluating substrings. If omitted, a binary comparison is performed. 

Example:

Str="How do you DO ?"

'InStrRev

Print InStrRev(Str,"DO",-1,1)               

'Output--> 12 , which means  it found the string in 12th position for  textual comparison

Print InStrRev(Str,"do",-1,0)           

'Output--> 5 , which means  it found the string in 5th position for binary comparison

Print InStrRev(Str,"DO",13,0)           

'Output--> 12 , which means  it found the string in  12th position for binary comparison

Print InStrRev(Str,"DO",10,1)           

'Output--> 5 , which means  it found the string in 5th position for  textual comparison