HL7 & InterfacesGenerated accuracy model review: 2026-05-06

Escape Tool accuracy and testing

This page documents how Calwarden builds trust for this calculator: source notes, regression-style default tests, limitations, assumptions, unit handling, rounding, and visible change history.

Formula source

The tool replaces reserved characters with their escape sequences: * `|` becomes `\F\` * `^` becomes `\S\` * `&` becomes `\T\` * `~` becomes `\R\` * `\` becomes `\E\`

Test cases

Default input regression check

Generated from the checked-in default inputs and calculate function.

Inputs

Input Text: Result is < 50% & > 10% | Confirmed
Action: Encode to HL7

Expected outputs

Processed Text: Result is < 50% \T\ > 10% \F\ Confirmed

Known limitations

This page documents the checked-in calculator logic and does not certify results for every real-world edge case.
Use the result as a planning estimate unless the calculator page states a stricter purpose.

Assumptions

This tool uses the standard HL7 v2 reserved characters and their common escape sequences: field, component, repetition, subcomponent, and escape.
It does not read custom delimiters from an MSH segment, so it is best for standard separator scenarios and quick transformations.
The converter handles the basic text substitutions only and does not process formatting escapes such as highlight, hexadecimal, or local implementation-specific extensions.

Unit handling

Input Text accepts text values.
Action accepts one of the configured options.

Rounding rules

Number displays use up to 2 decimal places in the calculator UI.

Version history

1.0.0 - 2026-05-06

Generated accuracy and testing page from the current hl7-escape-sequence calculator definition.

Change log

2026-05-06

Published default regression test documentation and metadata fallbacks for Escape Tool.

Calculator transparency

Accuracy pages are generated from checked-in calculator definitions and can be upgraded with curated review metadata over time.

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