String Contains, String Starts With, String Ends With

R2026b

Determine if string contains, starts with, or ends with pattern

• 

String Contains block

To add a block to a model, double-click the canvas and start typing the block name. Then, select the block from the list.

Libraries:
Simulink / String

Description

The String Contains, String Starts With, and String Ends With blocks determine if a string (str) contains, starts with, or ends with a pattern (sub).

The String Contains, String Starts With, and String Ends With blocks are identical. When Function is set to Contains, the block determines if the string contains a specified pattern. When Function is set to Starts with, the block determines if the string starts with a specified pattern. When Function is set to Ends with, the block determines if the string ends with a specified pattern.

Ports

Input

str — String to search

scalar

String to search for the pattern in, specified as a scalar.

Data Types: string

sub — String pattern to search for

scalar

String pattern to search for in string, specified as a scalar.

Data Types: string

Output

T/F — String pattern detected

1 | 0

Whether the string pattern was detected, returned as detected (1) or not detected (0).

Data Types: Boolean

Parameters

Case sensitive — Case sensitivity

on (default) | off

Case sensitivity for the pattern detection:

on

Consider string case when searching for the pattern.

off

Do not consider string case when searching for the pattern.

Programmatic Use

Block Parameter: CaseSensitive

Type: character vector

Values: 'on' | 'off'

Default: 'on'

Function — Pattern search function

Contains | Starts with | Ends with

Pattern search function, specified as:

• Contains

  Search for the pattern anywhere in the string. This is the default for the String Contains block.

• Starts with

  Search for the pattern only at the beginning of the string. This is the default for the String Starts With block.

• Ends with

  Search for the pattern only at the end of the string. This is the default for the String Ends With block.

Programmatic Use

Block Parameter: Function

Type: character vector

Values: 'Contains' | 'Starts with' | 'Ends with'

Default: 'Contains' for String Contains block, 'Starts with' for String Starts With block, 'Ends with' for String Ends With block

Block Characteristics

Data Types	Boolean | string
Direct Feedthrough	yes
Multidimensional Signals	no
Variable-Size Signals	no
Zero-Crossing Detection	no

Programmatic Use: Add Block

To add the block programmatically, use the add_block function with one of these library block paths as the source.

"simulink/String/String Contains"

Example: add_block("simulink/String/String Contains","myModel/myBlock",MakeNameUnique="on")

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using Simulink® Coder™.

Version History

Introduced in R2020a