Documentation ¶
Overview ¶
Package sentinel allows for the use of Unicode non-characters to distinguish between Boundary defined sentinels and values provided by external systems.
All sentinel values are prefixed with the sentinel start character U+FFFE and suffixed with the sentinel end character U+FFFF. Any string that starts with U+FFFE and ends with U+FFFF is a valid sentinel and reserved for use within Boundary.
U+FFFE and U+FFFF are special non-characters reserved for internal use in the Unicode standard. See https://www.unicode.org/versions/Unicode13.0.0/ch23.pdf#G12612.
Index ¶
Constants ¶
View Source
const ( // Start is the Unicode special non-character U+FFFE, and the prefix included in all // Boundary defined sentinel values. Start = '\ufffe' // End is the Unicode special non-character U+FFFF, and the suffix included in all // Boundary defined sentinel values. End = '\uffff' )
View Source
const ( // ExternalIdNone is a Boundary sentinel indicating that no id was provided by an // external system. ExternalIdNone = "\ufffenone\uffff" // ErrorDetailsNone is a Boundary sentinel indicating that there were no error details. NoErrorDetails = "\ufffeno error details\uffff" )
Variables ¶
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Functions ¶
Types ¶
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