49 lines
1.4 KiB
Nim
49 lines
1.4 KiB
Nim
# SPDX-FileCopyrightText: 2021 ☭ Emery Hemingway
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# SPDX-License-Identifier: Unlicense
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import std/[json, options, streams, xmlparser, xmltree]
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from std/os import extractFilename, paramStr
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import ../../preserves, ../jsonhooks, ../xmlhooks
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when isMainModule:
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let command = extractFilename(paramStr 0)
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try:
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case command:
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of "preserves_encode":
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let pr = stdin.readAll.parsePreserves
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stdout.newFileStream.write(pr)
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of "preserves_decode":
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let pr = stdin.readAll.decodePreserves
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stdout.writeLine($pr)
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of "preserves_from_json":
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let
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js = stdin.newFileStream.parseJson
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pr = js.toPreserve
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stdout.newFileStream.write(pr)
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of "preserves_from_xml":
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let
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xn = stdin.newFileStream.parseXml
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pr = xn.toPreserveHook(void)
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stdout.newFileStream.write(pr)
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of "preserves_to_json":
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let
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pr = stdin.readAll.decodePreserves
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js = preserveTo(pr, JsonNode)
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if js.isSome:
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stdout.writeLine(get js)
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else:
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quit("Preserves not convertable to JSON")
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of "preserves_to_xml":
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let pr = stdin.readAll.decodePreserves
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var xn: XmlNode
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if fromPreserveHook(xn, pr):
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stdout.writeLine(xn)
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else:
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quit("Preserves not convertable to XML")
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else:
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quit("no behavior defined for " & command)
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except:
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let msg = getCurrentExceptionMsg()
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quit(msg)
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