NimYAML/tools/testSuiteEvents.nim

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2017-01-09 18:09:07 +00:00
import ../yaml/stream, ../yaml/parser, ../yaml/taglib, streams
var
tags = initExtendedTagLibrary()
p = newYamlParser(tags)
events = p.parse(newFileStream(stdin))
proc start(name: string, tag: TagId, anchor: AnchorId, finish: bool = true) =
stdout.write(name)
if tag != yTagQuestionMark: stdout.write(" <" & tags.uri(tag) & ">")
if anchor != yAnchorNone: stdout.write(" &" & p.anchorName(anchor))
if finish: stdout.write("\n")
proc writeEscaped(str: string) =
for c in str:
case c
of '\\': stdout.write("\\\\")
of '\l': stdout.write("\\n")
of '\r': stdout.write("\\r")
of '\0': stdout.write("\\0")
of '\b': stdout.write("\\b")
of '\t': stdout.write("\\t")
else: stdout.write(c)
stdout.write("+STR\n")
while not(events.finished()):
let cur = events.next()
case cur.kind
of yamlStartDoc: stdout.write("+DOC\n")
of yamlStartMap: start("+MAP", cur.mapTag, cur.mapAnchor)
of yamlStartSeq: start("+SEQ", cur.seqTag, cur.seqAnchor)
of yamlEndMap: stdout.write("-MAP\n")
of yamlEndSeq: stdout.write("-SEQ\n")
of yamlEndDoc: stdout.write("-DOC\n")
of yamlScalar:
var
isQuoted = false
tag = cur.scalartag
if cur.scalarTag == yTagExclamationMark:
isQuoted = true
tag = yTagQuestionMark
start("=VAL", tag, cur.scalarAnchor, false)
if isQuoted: stdout.write(" \"")
else: stdout.write(" :")
writeEscaped(cur.scalarContent)
stdout.write("\n")
of yamlAlias:
stdout.write("=ALI *" & p.anchorName(cur.aliasTarget) & "\n")
stdout.write("-STR\n")