csv:csv/3

swipl
- library

csv(?Rows)// is det

csv(?Rows, +Options)// is det

Prolog DCG to `read/write' CSV data. Options:

separator(+Code): The comma-separator. Must be a character code. Default is (of course) the comma. Character codes can be specified using the 0' notation. E.g., using separator(0';) parses a semicolon separated file.
ignore_quotes(+Boolean): If true (default false), threat double quotes as a normal character.
strip(+Boolean): If true (default false), strip leading and trailing blank space. RFC4180 says that blank space is part of the data.
skip_header(+CommentLead): Skip leading lines that start with CommentLead. There is no standard for comments in CSV files, but some CSV files have a header where each line starts with #. After skipping comment lines this option causes csv//2 to skip empty lines. Note that an empty line may not contain white space characters (space or tab) as these may provide valid data.
convert(+Boolean): If true (default), use name/2 on the field data. This translates the field into a number if possible.
case(+Action): If down, downcase atomic values. If up, upcase them and if preserve (default), do not change the case.
functor(+Atom): Functor to use for creating row terms. Default is row.
arity(?Arity): Number of fields in each row. This predicate raises a domain_error(row_arity(Expected), Found) if a row is found with different arity.
match_arity(+Boolean): If false (default true), do not reject CSV files where lines provide a varying number of fields (columns). This can be a work-around to use some incorrect CSV files.