satysfi-csv

A CSV reader and writer for SATySFi.

install

You can install csv package with Satyrographos.

opam update

opam install satysfi-csv

satyrographos install

opam pin add "git+https://github.com/puripuri2100/satysfi-csv.git"

opam install satysfi-csv

satyrographos install

After installation, you can import this package by writing the code in preamble.

@require: csv/csv

usage

Use CSV.parser function to read the CSV.

CSV.parser function returns ((string list) list) csv-parser-error result type.

csv-parser-error type is defined as follows:

type csv-parser-erro =
  | CSVParserErrorUnExpectedChar of int * string
  | CSVParserErrorEOI

'ok 'err result type is defined in satysfi-base/base.satyg. Use the functions provided by satysfi-base/result.satyg when operating the result type.

let csv = `1,2,3
a,"b
c",""d",e",f""`

let csv-data = CSV.parser csv
% =>
%Ok([
%  [`1`; `2`; `3`];
%  [`a`; `b
%c`; `d",e",f`]
%])

You can change the delimiter of CSV:


let csv = `1,000:2,000:3,000
a:"b
c":""d":e",f""`

let csv-data = CSV.parser ?:(`:`) csv
% =>
%Ok([
%  [`1,000`; `2,000`; `3,000`];
%  [`a`; `b
%c`; `d",e",f`]
%])

Use CSV.printer function to write the CSV data.

CSV.printer is of type string ?-> (string list) list -> string

let data = [
  [`1`; `2`; `3`];
  [`a"b`; `a"
c"d`; `e
f`];
]

let csv = CSV.printer data
% ==>
%`1,2,3
%""a"b"",""a"
%c"d"","e
%f"`

% You can change the delimiter of CSV:
let csv2 = CSV.printer ?:(`:`) data
% ==>
%`1:2:3
%""a"b"":""a"
%c"d"":"e
%f"`

This software released under the MIT license.