2021-06-25 13:30:03 -07:00
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// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: BUSL-1.1
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2023-02-02 17:15:17 -08:00
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2021-06-25 13:30:03 -07:00
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// Package sentinel allows for the use of Unicode non-characters to distinguish between
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// Boundary defined sentinels and values provided by external systems.
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//
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// All sentinel values are prefixed with the sentinel start character U+FFFE and suffixed
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// with the sentinel end character U+FFFF. Any string that starts with U+FFFE and ends with
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// U+FFFF is a valid sentinel and reserved for use within Boundary.
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//
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// U+FFFE and U+FFFF are special non-characters reserved for internal use in the Unicode
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// standard.
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// See https://www.unicode.org/versions/Unicode13.0.0/ch23.pdf#G12612.
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package sentinel
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