Procs

proc csv2list(csv_file_path: string; columns: Natural = 32767;
              separator: char = ','; quote: char = '\"'; escape: char = '\x00'): seq[
    string] {.noinit, ...raises: [IOError, OSError, Exception],
              tags: [ReadIOEffect, WriteIOEffect].}

Stream Read CSV to a list of strings.

proc csv2dict(csv_file_path: string; columns: Natural = 32767;
              separator: char = ','; quote: char = '\"'; escape: char = '\x00'): seq[
    Table[string, string]] {....raises: [IOError, OSError, Exception],
                             tags: [ReadIOEffect, WriteIOEffect].}

Stream Read CSV to a list of dictionaries. This is very similar to pandas.read_csv(filename).

proc read_clipboard(columns: Natural = 32767; has_header: bool = true;
                    separator: char = ','; quote: char = '\"';
                    escape: char = '\x00'): seq[(string, string)] {.
    ...raises: [OSError, Exception, IOError],
    tags: [ExecIOEffect, ReadIOEffect, RootEffect, WriteIOEffect].}

Stream Read CSV to a list of dictionaries. This is very similar to pandas.read_clipboard().

proc url2csv(url: string; columns: Natural = 32767; separator: char = ',';
             quote: char = '\"'; escape: char = '\x00';
             agent: string = defUserAgent; maxRedirects: int = 5;
             timeout: int = -1; http_method: string = "GET"; body: string = ""): seq[
    (string, string)] {....raises: [Exception, LibraryError, SslError, IOError,
                                 OSError, ValueError, HttpRequestError,
                                 TimeoutError, ProtocolError, KeyError], tags: [
    RootEffect, ReadDirEffect, ReadIOEffect, WriteIOEffect, TimeEffect].}

Stream Read URL to CSV to a list of dictionaries. This is very similar to pandas.read_csv(url).

proc csv2json(csv_string: string; separator: char = ','; nl: char = '\n'): string {.
    ...raises: [KeyError, ValueError], tags: [].}

CSV string to JSON string Pretty-printed.

proc csv2ndjson(csv_file_path, ndjson_file_path: string;
                columns: Natural = 32767; separator: char = ',';
                quote: char = '\"'; escape: char = '\x00') {.discardable,
    ...raises: [IOError, OSError, Exception], tags: [ReadIOEffect, WriteIOEffect].}

Stream Read CSV to NDJSON https://github.com/ndjson/ndjson-spec

proc csv2htmltable(csv_file_path, html_file_path: string = "";
                   columns: Natural = 32767; separator: char = ',';
                   quote: char = '\"'; escape: char = '\x00';
                   header_html: string = html_table_header): string {.noinit,
    ...raises: [IOError, OSError, Exception], tags: [ReadIOEffect, WriteIOEffect].}

Stream Read CSV to HTML Table file and string.

proc csv2markdowntable(csv_file_path, md_file_path: string = "";
                       separator: char = ','; quote: char = '\"';
                       escape: char = '\x00'; columns: Natural = 32767): string {.
    ...raises: [IOError, OSError, Exception], tags: [ReadIOEffect, WriteIOEffect].}

CSV to MarkDown Table file and string.

proc csv2terminal(csv_file_path: string; column_width: Natural;
                  columns: Natural = 32767; separator: char = ',';
                  quote: char = '\"'; escape: char = '\x00') {.
    ...raises: [IOError, OSError, ValueError, Exception],
    tags: [ReadIOEffect, WriteIOEffect].}

CSV to pretty-printed colored terminal table.

proc csv2karax(csv_file_path: string = ""; columns: Natural = 32767;
               separator: char = ','; quote: char = '\"'; escape: char = '\x00'): string {.
    noinit, ...raises: [IOError, OSError, Exception],
    tags: [ReadIOEffect, WriteIOEffect].}

CSV to Karax HTML Table.

proc csv2xml(csv_file_path: string; columns: Natural = 32767;
             separator: char = ','; quote: char = '\"'; escape: char = '\x00';
             header_xml: string = xmlHeader): string {.
    ...raises: [IOError, OSError, Exception], tags: [ReadIOEffect, WriteIOEffect].}

Stream Read CSV to XML.

proc tsv2csv(csv_file_path: string; separator1: char = '\t';
             separator2: char = ','): string {....raises: [IOError],
    tags: [ReadIOEffect].}

Stream Read TSV to CSV, or any custom format to CSV, simple replace of "," to "t".

proc diff_csvs(csv_file_path0, csv_file_path1: string): seq[Item] {.
    ...raises: [KeyError, IOError], tags: [ReadDirEffect, ReadIOEffect].}

Diff 2 CSV files.