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Learn more about text functions CONCATENATE, JOIN, MATCH, FIND, FIRST, LAST, LENGTH, UPPERCASE, LOWERCASE, CAPITALIZE, TRIM, INDEXOF, LASTINDEXOF, SUBSTRING, SUBSTRING BEFORE, SUBSTRING AFTER, SPLIT, REPLACE, EQUALS. 

Overview

FunctionDescription

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CONCATENATEUse the '+' (plus) operator to concatenate strings or a combination of strings and other type values to produce a single string value

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Syntax

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  • string1 - The first string that you want to concatenate.
  • string2 - The second string that you want to concatenate.
  • value1 - A value of some type of number, date or boolean that you want to add to the new string value.

Return type

  • string

Examples

 

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JOIN

Joins
UI Text Box
typeinfo

There exists a STR_CONCAT (string, string) function in the expression language. As it can only concatenate 2 strings, and is much longer in typing, we advise to use above way for concatenating strings.

 

JOIN

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a series of values into one string, separated with a character of your choice

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Syntax

Code Block
JOIN(argument1, argument2, ..., separator)
  • argument1, argument2 - Attributes or expressions that contain the values that will be joint to a single string. JOIN works for all base types, even multivalued.
  • separator - A string value that will be used as separator symbol.

Return type

  • string
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typenote
an UNKNOWN value will be represented as an empty entry in the result string.
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typenote

The CONCAT function is identical to the JOIN function.

Examples

Suppose a model containing the following 4 attributes.

 

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MATCH

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MATCHCompares

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a string pattern to another string and returns TRUE if the string exactly matches the pattern, and otherwise FALSE. The MATCH function is case-sensitive.

Syntax

Code Block
MATCH(pattern, string)
  • pattern - An attribute of base type string or a string value. String must be a valid regular expression. The regular expressions used in several Blueriq Studio functions are common Java 1.4 expressions. For a complete documentation we refer to the online java documentation.
  • string - String value, attribute of base type string or an expression that results in a string value.

Return type

  • boolean

Examples

If the attribute File.name is of base type string and its value is “Thisfile_1.doc” then

  • MATCH(“Thisfile_1.doc”, File.name) results in TRUE
  • MATCH(File.name, ”Thisfile_1.doc”) results in TRUE
  • MATCH(” Thisfile_1.doc”, File.name) results in FALSE
  • MATCH(“thisfile_1.doc”, File.name) results in FALSE
  • MATCH(“[A-Z]hisfile_1.doc”, File.name) results in TRUE
  • MATCH(“[a-z]hisfile_1.doc”, File.name) results in FALSE
  • MATCH(“Thisfile_[0-9].doc”, File.name) results in TRUE
  • MATCH("..............", File.name) results in TRUE
  • MATCH(".*", File.name) results in TRUE
  • MATCH("**", "**") results in an error message, because "**" is not a valid regular expression
FINDLooks for a

FIND

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string pattern within another string and returns the first matching characters. The function is case-sensitive.

Syntax

Code Block
FIND(pattern, attribute)
  • pattern - An attribute of base type string or a string value. String must be a valid regular expression. The regular expressions used in several Blueriq Studio functions are common Java 1.4 expressions. For a complete documentation we refer to the online java documentation.
  • attribute - An attribute of base type string or an expression that results in a string.

Return type

  • string

Examples

If File.name is an attribute of base type string with value “Thisfile_1.doc”, then:

  • FIND(“_[1-5]”, File.name) results in “_1”
  • FIND(“File”, File.name) results in UNKNOWN
  • FIND(“el”, “Hello”) results in “el”
  • FIND(“eo”, “Hello”) results in UNKNOWN

FIRST

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FIRSTReturns the first character(s) of a string, based on the number of characters you specify

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Syntax

Code Block
FIRST integer CHARACTERS OF string
FIRST CHARACTER OF string

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integer - A positive integer value. This can be either an attribute of base type integer, an expression that results in an integer or a constant integer value. FIRST CHARACTER OF can be used to retrieve only the first character of the string.

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Return type

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typenote

If you prefer a functional syntax, you can use the STR_FRONT( string, integer ) function. Example: STR_FRONT("Blueriq", 3) = "Blu"

Examples

If File.name is an attribute of base type string with value “Thisfile_1.doc” and the integer attribute File.prefix has value 8 then:

  • FIRST File.prefix CHARACTERS OF File.name results in “Thisfile”
  • FIRST CHARACTER OF File.name results in “T”

Example

LAST

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LAST 3 CHARACTERS OF (FIRST 4 CHARACTERS OF “what's in a name”) results in “hat”

 

UI Text Box
typetip
use a combination of FIRST and LAST to retrieve a subset from inside a string.

 

LAST

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Returns the last character(s) of a string, based on the number of characters you specify

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Syntax

Code Block
LAST integer CHARACTERS OF string
LAST CHARACTER OF string
  • integer - A positive integer value. This can be either an attribute of base type integer, an expression that results in an integer or a constant integer value. LAST CHARACTER OF can be used to retrieve only the last character of the string.
  • string - An attribute of base type string, an expression that results in a string or a constant string value.

Return type

  • string
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typenote

If you prefer a functional syntax, you can use the STR_BACK ( string, integer ) function. Example: STR_BACK("Blueriq", 3) = "riq"

Examples

If File.name is an attribute of base type string with value “Thisfile_1.doc” and the integer attribute File.extension has value 3 then:

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LAST File.extension CHARACTERS OF File.name results in “doc”

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Example

  • FIRST 2 CHARACTERS OF (LAST 6 CHARACTERS OF “pieceofcake”) results in “of”
  • LAST 3 CHARACTERS OF (FIRST 4 CHARACTERS OF “what's in a name”) results in “hat”

LENGTH

LENGTHReturns

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the length of a string

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Syntax

Code Block
LENGTH ( string )
  • string - An attribute of base type string, an expression that results in a string or a constant string value.

Return type

  • integer
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Spaces at the start of the end of the string are counted as well, the string is not trimmed.

Example

  • LENGTH( "Blueriq" ) = 7
  • LENGTH( " Blueriq " ) = 9
  • LENGTH( ? ) = ?

UPPER

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UPPERCASEReturns

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a string with all characters in uppercase

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Syntax

Code Block
UPPER ( string )

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...

Return type

  • string

Example

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UPPER( "hello" ) = "HELLO"

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UPPER( "hello world " ) = "HELLO WORLD "

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UPPER( " hELLo " ) = " HELLO "

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LOWERCASEReturns

LOWER

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a string with all characters in lowercase

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CAPITALIZEReturns

Syntax

Code Block
LOWER ( string )
  • string - An attribute of base type string, an expression that results in a string or a constant string value.

Return type

  • string

Example

  • LOWER( "hello" ) = "hello"
  • LOWER( "WORLD" ) = "world"
  • LOWER( "Hello World " ) = "hello world "
  • LOWER( " hELLo " ) = " hello "
  • LOWER( ? ) = ?

CAPITALIZE

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a string with the first character uppercased

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Syntax

Code Block
CAPITALIZE ( string )
CAPITALIZE ( string, lowerTheRest )

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.

...

Return type

  • string

Example

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CAPITALIZE( "hello" ) = "Hello"

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CAPITALIZE( "WORLD" ) = "WORLD"

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CAPITALIZE( "hello world " ) = "Hello world "

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CAPITALIZE( " hELLo " ) = " hELLo "

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typenote

The input string is not trimmed, so in this case the first character is a space.

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CAPITALIZE( "hello" , TRUE ) = "Hello"

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CAPITALIZE( "WORLD" , TRUE ) = "World"

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CAPITALIZE( "hello world " , TRUE ) = "Hello world "

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The input string is not trimmed, so in this case the first character is a space.

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TRIMStrips

TRIM

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the leading and trailing spaces from a

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Syntax

Code Block
TRIM ( string )
string

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Return type

  • string

Example

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TRIM( "Hello" ) = "Hello"

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INDEXOF

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Returns the index of the first occurrence of a specified substring in a string.

Syntax

Code Block
INDEXOF ( string , substring )
INDEXOF ( string , substring , startIndex )
  • string - An attribute of base type string, an expression that results in a string or a constant string value.
  • substring - An attribute of base type string, an expression that results in a string or a constant string value.
  • startIndex - A positive integer value indicating at which character the search for the substring should start (inclusive). This can be either an attribute of base type integer, an expression that results in an integer or a constant integer value. The first character starts at index 0.

Return type

  • integer - the index of the first occurrence of the specified substring or -1 if it is not found

Example

  • INDEXOF( "Hello world" , "o" ) = 4
  • INDEXOF( "Hello world" , "o" , 5 ) = 7
  • INDEXOF( "Hello world" , "a" ) =  -1
  • INDEXOF( "Hello world" , "o" , 8 ) =  -1

LASTINDEXOF

LASTINDEXOF returns the index of the last occurrence of a specified substring in a string

Syntax

Code Block
LASTINDEXOF ( string , substring )
LASTINDEXOF ( string , substring , startIndex )
LASTINDEXOFReturns the index of the last occurrence of a specified substring in a string. 
SUBSTRINGReturns the substring of a given string starting from the index provided and ending at the end index if provided, or the end of the string. 
SUBSTRING BEFOREReturns the start of a given string before the first occurrence of substring, or an empty string if substring is not found. 
SUBSTRING AFTERReturns the end of a given string after the first occurrence of substring, or an empty string if substring is not found. 
SPLITReturns a multivalued string attribute containing every substring that is delimited by the given pattern. 
REPLACEReplaces every occurrence of a string pattern within another string with a provided replacement string. The function is case-sensitive.
EQUALSCompares two strings and returns TRUE if and only if they are equal. This function is case sensitive.

Go here for more info on the Text Substitution Language (TSL) documentation. 

Functions

Include Page
Text function CONCATENATE
Text function CONCATENATE


Include Page
Text function JOIN
Text function JOIN


Include Page
Text function MATCH
Text function MATCH


Include Page
Text function FIND
Text function FIND


Include Page
Text function FIRST
Text function FIRST


Include Page
Text function LAST
Text function LAST


Include Page
Text function LENGTH
Text function LENGTH


Include Page
Text function UPPERCASE
Text function UPPERCASE


Include Page
Text function LOWERCASE
Text function LOWERCASE


Include Page
Text function CAPITALIZE
Text function CAPITALIZE


Include Page
Text function TRIM
Text function TRIM


Include Page
Text function INDEXOF
Text function INDEXOF


Include Page
Text function LASTINDEXOF
Text function LASTINDEXOF


Include Page
Text function SUBSTRING
Text function SUBSTRING


Include Page
Text function SUBSTRING BEFORE
Text function SUBSTRING BEFORE


Include Page
Text function SUBSTRING AFTER
Text function SUBSTRING AFTER


Include Page
Text function SPLIT
Text function SPLIT


Include Page
Text function REPLACE
Text function REPLACE


Include Page
Text function EQUALS
Text function EQUALS

  • string - An attribute of base type string, an expression that results in a string or a constant string value.
  • substring - An attribute of base type string, an expression that results in a string or a constant string value.
  • startIndex - A positive integer value indicating at which character the search for the substring should start (inclusive), searching backwards. This can be either an attribute of base type integer, an expression that results in an integer or a constant integer value.

Return type

  • integer - the index of the last occurrence of the specified substring or -1 if it is not found

Example

  • LASTINDEXOF( "Hello world" , "o" ) = 7
  • LASTINDEXOF( "Hello world" , "o" , 5 ) = 4
  • LASTINDEXOF( "Hello world" , "a" ) =  -1
  • LASTINDEXOF( "Hello world" , "o" , 3 ) =  -1

SUBSTRING

SUBSTRING returns the substring of a given string starting from the index provided and ending at the end index if provided, or the end of the string

Syntax

Code Block
SUBSTRING ( string , startIndex )
SUBSTRING ( string , startIndex , endIndex )
  • string - An attribute of base type string, an expression that results in a string or a constant string value.
  • startIndex - A positive integer value indicating at which character the substring should start (inclusive). This can be either an attribute of base type integer, an expression that results in an integer or a constant integer value. The first character starts at index 0.
  • endIndex - A positive integer value indicating at which character the substring should end (exclusive). This can be either an attribute of base type integer, an expression that results in an integer or a constant integer value. The endIndex cannot exceed the length of the string.

Return type

  • string

Example

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SUBSTRING( "Hello world" , 1 ) = "ello world"

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