[pdal] filter.range and dimensions with numerics in their name

[Carl Anderson]

Hello list,

I am having issues building a pipeline with

    {
      "type":"filters.normal",
      "tag":"curvature_32",
      "knn":"7"
    },
    {
      "type":"filters.eigenvalues",
      "tag":"eigen",
      "knn":"6"
    },
    {
      "type":"filters.range",
      "tag":"postfilter",
      "limits":"Eigenvalue0[0.0:6.5]",
      "limits":"Curvature[0.0:0.04]"
    },

The pipeline fails with
PDAL: filters.range: Invalid 'limits' option: 'Eigenvalue0[:6.5]': Missing
'(' or '['.

When I remove the dimension Eigenvalue0, the pipeline executes.

Before digging into the source, is this likely to be a dimension name issue?

TIA

C.

Carl Anderson
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