canonicalize-graphs.md
In glyrepr: Representation for Glycan Compositions and Structures

batch graph recovery distinguishes missing and invalid inputs

Code
  result <- canonicalize_glycan_graphs(list(absent = NULL, bad = 1), on_failure = "na")
Condition
  Warning:
  1 structure failed validation and was replaced with `NA`.
  x Position 2 (`bad`): Assertion on 'graph' failed: Must inherit from class 'igraph', but has class 'numeric'.

Code
  canonicalize_glycan_graphs(list(NULL, 1))
Condition
  Error in `canonicalize_glycan_graphs()`:
  ! Invalid structure at position 2.
  Caused by error in `doTryCatch()`:
  ! Assertion on 'graph' failed: Must inherit from class 'igraph', but has class 'numeric'.