Refering to fields whose names are not valid identifiers | CUE

Jonathan Matthews

commented cue

Some fields have names that are not valid CUE identifiers. This Commented CUE demonstrates how to refer to these fields, both at CUE’s top level and elsewhere.

package example

// data.cue contains fields we want to refer to
// in file.cue

"top level field": "a top-level value"

aStruct: "nested field": "a nested value"

package example

// Declare an alias
X="top level field": _

output: {
	// Use the alias to refer to a top-level
	// field's value
	topLevelField: X

	// Use index notation to refer to a
	// non-top-level field's value
	nestedField: aStruct["nested field"]
}

$ cue export -e output
{
    "topLevelField": "a top-level value",
    "nestedField": "a nested value"
}

How-to Guide: Exporting fields whose names are not valid identifiers

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