TrueCloudLab/distribution
14
0
Fork 4
Code Issues 1 Pull requests 1 Projects Releases 2 Packages Wiki Activity Actions

Add identifier grammar

Browse source 
Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
This commit is contained in:
Derek McGowan 2016-06-15 14:04:21 -07:00
parent 9a43b8f696
commit 21db8e8597
No known key found for this signature in database
GPG key ID: F58C5D0A4405ACDB
3 changed files with 86 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

19
reference/regexp.go
View file

@ -68,6 +68,25 @@ var (
ReferenceRegexp = anchored(capture(NameRegexp),
optional(literal(":"), capture(TagRegexp)),
optional(literal("@"), capture(DigestRegexp)))
// IdentifierRegexp is the format for string identifier used as a
// content addressable identifier using sha256. These identifiers
// are like digests without the algorithm, since sha256 is used.
IdentifierRegexp = match(`([a-f0-9]{64})`)
// ShortIdentifierRegexp is the format used to represent a prefix
// of an identifier. A prefix may be used to match a sha256 identifier
// within a list of trusted identifiers.
ShortIdentifierRegexp = match(`([a-f0-9]{6,64})`)
// anchoredIdentifierRegexp is used to check or match an
// identifier value, anchored at start and end of string.
anchoredIdentifierRegexp = anchored(IdentifierRegexp)
// anchoredShortIdentifierRegexp is used to check if a value
// is a possible identifier prefix, anchored at start and end
// of string.
anchoredShortIdentifierRegexp = anchored(ShortIdentifierRegexp)
)
// match compiles the string to a regular expression.