String Data

Text-based values

Strings are pieces of textual data. Use strings in Stateflow^® charts to control chart behavior or create natural language output. Incorporate string data in your logging, messages, and custom code workflows.

Stateflow Syntax

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MATLAB Action Language Operators

Create, Concatenate, and Convert

`string`	Convert value to string in Stateflow chart
`blanks`	Character array of spaces
`plus`	Concatenate strings in Stateflow chart
`str2double`	Convert string to double-precision value in Stateflow chart

Determine Types and Properties

`isletter`	Determine which characters are letters in Stateflow chart
`isspace`	Determine which characters are spaces in Stateflow chart
`isstring`	Determine if input is string in Stateflow chart
`strlength`	Determine length of string in Stateflow chart

Find and Replace

`contains`	Determine if string contains substring in Stateflow chart
`startsWith`	Determine if string starts with substring in Stateflow chart
`endsWith`	Determine if string ends with substring in Stateflow chart
`strfind`	Find substring within a string in Stateflow chart
`extractAfter`	Extract substring after position in Stateflow chart
`extractBefore`	Extract substring before position in Stateflow chart
`replace`	Find and replace substrings in Stateflow chart
`replaceBetween`	Replace substrings between start and end points in Stateflow chart
`strrep`	Find and replace substrings in Stateflow chart
`erase`	Delete substrings within strings in Stateflow chart
`eraseBetween`	Delete substring between start and end points in Stateflow chart
`insertAfter`	Insert string after substring in Stateflow chart
`insertBefore`	Insert string before substring in Stateflow chart

Edit

`lower`	Convert string to lowercase in Stateflow chart
`upper`	Convert a string to uppercase in Stateflow chart
`reverse`	Reverse order of characters in strings in Stateflow chart
`strip`	Remove leading and trailing characters from string in Stateflow chart
`strtrim`	Remove leading and trailing white space from string in Stateflow chart

Compare

`matches`	Determine if two strings match in Stateflow chart
`strcmp`	Compare strings in Stateflow chart (case sensitive)
`strcmpi`	Compare strings in Stateflow chart (case insensitive)
`strncmp`	Compare first N characters of strings in Stateflow chart (case sensitive)
`strncmpi`	Compare first N characters of strings in Stateflow chart (case insensitive)

C Action Language Operators

`ascii2str`	Convert array of type `uint8` to string
`str2ascii`	Convert string to array of type `uint8`
`str2double`	Convert string to double-precision value in Stateflow chart
`strcat`	Concatenate strings
`strcmp`	Compare strings in Stateflow chart (case sensitive)
`strcpy`	Assign string value
`strlen`	Determine length of string
`substr`	Extract substring from string
`tostring`	Convert value to string

Topics

Manage Textual Information by Using Strings
Use text strings in Stateflow charts.
Log String Data to the Simulation Data Inspector
View text strings in the Simulation Data Inspector and in the MATLAB^® workspace.
Send Messages with String Data
Communicate between charts by using messages with string payloads.

Featured Examples

Simulate a Media Player

Use enumerated data and strings to define the behavior of a media player.

Open Model

Share String Data with Custom C Code

Pass string data between Stateflow charts and custom C code.

Open Model