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14.6. DSL Syntax Examples

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Table 14.2. DSL Syntax Examples
Name	Description	Example
Quotes	Use quotes for textual data that a rule editor may want to enter. You can also enclose the capture with words to ensure that the text is correctly matched.	`[when]something is "{color}"=Something(color=="{color}") [when]another {state} thing=OtherThing(state=="{state}"` Copy to Clipboard Toggle word wrap
Braces	In a DSL mapping, the braces "{" and "}" should only be used to enclose a variable definition or reference, resulting in a capture. If they should occur literally, either in the expression or within the replacement text on the right hand side, they must be escaped with a preceding backslash ("\").	`[then]do something= if (foo) \{ doSomething(); \}` Copy to Clipboard Toggle word wrap
Mapping with correct syntax example	n/a	`# This is a comment to be ignored. [when]There is a person with name of "{name}"=Person(name=="{name}") [when]Person is at least {age} years old and lives in "{location}"= Person(age >= {age}, location=="{location}") [then]Log "{message}"=System.out.println("{message}"); [when]And = and` Copy to Clipboard Toggle word wrap
Expanded DSL example	n/a	`There is a person with name of "Kitty" ==> Person(name="Kitty") Person is at least 42 years old and lives in "Atlanta" ==> Person(age >= 42, location="Atlanta") Log "boo" ==> System.out.println("boo"); There is a person with name of "Bob" and Person is at least 30 years old and lives in "Utah" ==> Person(name="Bob") and Person(age >= 30, location="Utah")` Copy to Clipboard Toggle word wrap

Note

If you are capturing plain text from a DSL rule line and want to use it as a string literal in the expansion, you must provide the quotes on the right hand side of the mapping.

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