mirror of https://github.com/status-im/NimYAML.git
68 lines
2.4 KiB
Nim
68 lines
2.4 KiB
Nim
# NimYAML - YAML implementation in Nim
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# (c) Copyright 2015 Felix Krause
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#
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# See the file "copying.txt", included in this
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# distribution, for details about the copyright.
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proc `$`*(id: TagId): string =
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case id
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of yTagQuestionMark: "?"
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of yTagExclamationMark: "!"
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of yTagString: "!!str"
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of yTagSequence: "!!seq"
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of yTagMapping: "!!map"
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of yTagNull: "!!null"
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of yTagBoolean: "!!bool"
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of yTagInteger: "!!int"
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of yTagFloat: "!!float"
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of yTagOrderedMap: "!!omap"
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of yTagPairs: "!!pairs"
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of yTagSet: "!!set"
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of yTagBinary: "!!binary"
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of yTagMerge: "!!merge"
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of yTagTimestamp: "!!timestamp"
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of yTagValue: "!!value"
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of yTagYaml: "!!yaml"
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else: "<" & $cast[int](id) & ">"
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proc initTagLibrary*(): TagLibrary =
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new(result)
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result.tags = initTable[string, TagId]()
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result.secondaryPrefix = yamlTagRepositoryPrefix
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result.nextCustomTagId = yFirstCustomTagId
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proc registerUri*(tagLib: TagLibrary, uri: string): TagId =
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tagLib.tags[uri] = tagLib.nextCustomTagId
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result = tagLib.nextCustomTagId
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tagLib.nextCustomTagId = cast[TagId](cast[int](tagLib.nextCustomTagId) + 1)
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proc uri*(tagLib: TagLibrary, id: TagId): string =
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for iUri, iId in tagLib.tags.pairs:
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if iId == id: return iUri
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raise newException(KeyError, "Unknown tag id: " & $id)
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proc initFailsafeTagLibrary(): TagLibrary =
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result = initTagLibrary()
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result.tags["!"] = yTagExclamationMark
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result.tags["?"] = yTagQuestionMark
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result.tags["tag:yaml.org,2002:str"] = yTagString
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result.tags["tag:yaml.org,2002:seq"] = yTagSequence
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result.tags["tag:yaml.org,2002:map"] = yTagMapping
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proc initCoreTagLibrary(): TagLibrary =
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result = initFailsafeTagLibrary()
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result.tags["tag:yaml.org,2002:null"] = yTagNull
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result.tags["tag:yaml.org,2002:bool"] = yTagBoolean
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result.tags["tag:yaml.org,2002:int"] = yTagInteger
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result.tags["tag:yaml.org,2002:float"] = yTagFloat
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proc initExtendedTagLibrary(): TagLibrary =
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result = initCoreTagLibrary()
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result.tags["tag:yaml.org,2002:omap"] = yTagOrderedMap
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result.tags["tag:yaml.org,2002:pairs"] = yTagPairs
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result.tags["tag:yaml.org,2002:binary"] = yTagBinary
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result.tags["tag:yaml.org,2002:merge"] = yTagMerge
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result.tags["tag:yaml.org,2002:timestamp"] = yTagTimestamp
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result.tags["tag:yaml.org,2002:value"] = yTagValue
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result.tags["tag:yaml.org,2002:yaml"] = yTagYaml
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