Method: Polars::StringExpr#extract_all

Defined in:
lib/polars/string_expr.rb

#extract_all(pattern) ⇒ Expr

Extracts all matches for the given regex pattern.

Extracts each successive non-overlapping regex match in an individual string as an array.

Examples:

df = Polars::DataFrame.new({"foo" => ["123 bla 45 asd", "xyz 678 910t"]})
df.select(
  [
    Polars.col("foo").str.extract_all('(\d+)').alias("extracted_nrs")
  ]
)
# =>
# shape: (2, 1)
# ┌────────────────┐
# │ extracted_nrs  │
# │ ---            │
# │ list[str]      │
# ╞════════════════╡
# │ ["123", "45"]  │
# │ ["678", "910"] │
# └────────────────┘



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# File 'lib/polars/string_expr.rb', line 1133

def extract_all(pattern)
  pattern = Utils.parse_into_expression(pattern, str_as_lit: true)
  Utils.wrap_expr(_rbexpr.str_extract_all(pattern))
end