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4d9aec1858
Somehow the test case doesn't crash anymore and the regression in the doc generation is fixed. Fixes #9019
28 lines
563 B
Nim
28 lines
563 B
Nim
discard """
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action: "run"
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"""
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import
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tables, deques, sequtils
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const
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lookupTable = {'(': ')', '{': '}', '[': ']'}.toTable
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proc isPaired*(value: string): bool =
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var stack = initDeque[char]()
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for item in value:
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# echo "Looking at " & item
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if item in lookupTable:
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stack.addLast(item)
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if item in toSeq(lookupTable.values):
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if stack.len == 0:
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return false
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if lookupTable[stack.popLast()] != item:
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return false
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return stack.len == 0
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doAssert isPaired("{[()]}") == true
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doAssert isPaired("a)b(c") == false
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