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- // Original definitions in https://github.com/DefinitelyTyped/DefinitelyTyped by: David Muller <https://github.com/davidm77>
- /// <reference types="node" />
- import * as stream from "stream";
- export type Callback = (err: CsvError | undefined, records: any | undefined, info: Info) => void;
- export interface Parser extends stream.Transform {}
- export class Parser {
- constructor(options: Options);
-
- __push(line: any): any;
-
- __write(chars: any, end: any, callback: any): any;
-
- readonly options: Options
-
- readonly info: Info;
- }
- export interface CastingContext {
- readonly column: number | string;
- readonly empty_lines: number;
- readonly error: CsvError;
- readonly header: boolean;
- readonly index: number;
- readonly quoting: boolean;
- readonly lines: number;
- readonly records: number;
- readonly invalid_field_length: number;
- }
- export type CastingFunction = (value: string, context: CastingContext) => any;
- export type CastingDateFunction = (value: string, context: CastingContext) => Date;
- export type ColumnOption = string | undefined | null | false | { name: string };
- /*
- Note, could not `extends stream.TransformOptions` because encoding can be
- BufferEncoding and undefined as well as null which is not defined in the
- extended type.
- */
- export interface Options {
- /**
- * If true, the parser will attempt to convert read data types to native types.
- * @deprecated Use {@link cast}
- */
- auto_parse?: boolean | CastingFunction;
- autoParse?: boolean | CastingFunction;
- /**
- * If true, the parser will attempt to convert read data types to dates. It requires the "auto_parse" option.
- * @deprecated Use {@link cast_date}
- */
- auto_parse_date?: boolean | CastingDateFunction;
- autoParseDate?: boolean | CastingDateFunction;
- /**
- * If true, detect and exclude the byte order mark (BOM) from the CSV input if present.
- */
- bom?: boolean;
- /**
- * If true, the parser will attempt to convert input string to native types.
- * If a function, receive the value as first argument, a context as second argument and return a new value. More information about the context properties is available below.
- */
- cast?: boolean | CastingFunction;
- /**
- * If true, the parser will attempt to convert input string to dates.
- * If a function, receive the value as argument and return a new value. It requires the "auto_parse" option. Be careful, it relies on Date.parse.
- */
- cast_date?: boolean | CastingDateFunction;
- castDate?: boolean | CastingDateFunction;
- /**
- * List of fields as an array,
- * a user defined callback accepting the first line and returning the column names or true if autodiscovered in the first CSV line,
- * default to null,
- * affect the result data set in the sense that records will be objects instead of arrays.
- */
- columns?: ColumnOption[] | boolean | ((record: any) => ColumnOption[]);
- /**
- * Convert values into an array of values when columns are activated and
- * when multiple columns of the same name are found.
- */
- group_columns_by_name?: boolean;
- groupColumnsByName?: boolean;
- /**
- * Treat all the characters after this one as a comment, default to '' (disabled).
- */
- comment?: string;
- /**
- * Restrict the definition of comments to a full line. Comment characters
- * defined in the middle of the line are not interpreted as such. The
- * option require the activation of comments.
- */
- comment_no_infix?: boolean;
- /**
- * Set the field delimiter. One character only, defaults to comma.
- */
- delimiter?: string | string[] | Buffer;
- /**
- * Set the source and destination encoding, a value of `null` returns buffer instead of strings.
- */
- encoding?: BufferEncoding | undefined;
- /**
- * Set the escape character, one character only, defaults to double quotes.
- */
- escape?: string | null | false | Buffer;
- /**
- * Start handling records from the requested number of records.
- */
- from?: number;
- /**
- * Start handling records from the requested line number.
- */
- from_line?: number;
- fromLine?: number;
- /**
- * Don't interpret delimiters as such in the last field according to the number of fields calculated from the number of columns, the option require the presence of the `column` option when `true`.
- */
- ignore_last_delimiters?: boolean | number;
- /**
- * Generate two properties `info` and `record` where `info` is a snapshot of the info object at the time the record was created and `record` is the parsed array or object.
- */
- info?: boolean;
- /**
- * If true, ignore whitespace immediately following the delimiter (i.e. left-trim all fields), defaults to false.
- * Does not remove whitespace in a quoted field.
- */
- ltrim?: boolean;
- /**
- * Maximum numer of characters to be contained in the field and line buffers before an exception is raised,
- * used to guard against a wrong delimiter or record_delimiter,
- * default to 128000 characters.
- */
- max_record_size?: number;
- maxRecordSize?: number;
- /**
- * Name of header-record title to name objects by.
- */
- objname?: string;
- /**
- * Alter and filter records by executing a user defined function.
- */
- on_record?: (record: any, context: CastingContext) => any;
- onRecord?: (record: any, context: CastingContext) => any;
- /**
- * Optional character surrounding a field, one character only, defaults to double quotes.
- */
- quote?: string | boolean | Buffer | null;
- /**
- * Generate two properties raw and row where raw is the original CSV row content and row is the parsed array or object.
- */
- raw?: boolean;
- /**
- * Discard inconsistent columns count, default to false.
- */
- relax_column_count?: boolean;
- relaxColumnCount?: boolean;
- /**
- * Discard inconsistent columns count when the record contains less fields than expected, default to false.
- */
- relax_column_count_less?: boolean;
- relaxColumnCountLess?: boolean;
- /**
- * Discard inconsistent columns count when the record contains more fields than expected, default to false.
- */
- relax_column_count_more?: boolean;
- relaxColumnCountMore?: boolean;
- /**
- * Preserve quotes inside unquoted field.
- */
- relax_quotes?: boolean;
- relaxQuotes?: boolean;
- /**
- * One or multiple characters used to delimit record rows; defaults to auto discovery if not provided.
- * Supported auto discovery method are Linux ("\n"), Apple ("\r") and Windows ("\r\n") row delimiters.
- */
- record_delimiter?: string | string[] | Buffer | Buffer[];
- recordDelimiter?: string | string[] | Buffer | Buffer[];
- /**
- * If true, ignore whitespace immediately preceding the delimiter (i.e. right-trim all fields), defaults to false.
- * Does not remove whitespace in a quoted field.
- */
- rtrim?: boolean;
- /**
- * Dont generate empty values for empty lines.
- * Defaults to false
- */
- skip_empty_lines?: boolean;
- skipEmptyLines?: boolean;
- /**
- * Skip a line with error found inside and directly go process the next line.
- */
- skip_records_with_error?: boolean;
- skipRecordsWithError?: boolean;
- /**
- * Don't generate records for lines containing empty column values (column matching /\s*\/), defaults to false.
- */
- skip_records_with_empty_values?: boolean;
- skipRecordsWithEmptyValues?: boolean;
- /**
- * Stop handling records after the requested number of records.
- */
- to?: number;
- /**
- * Stop handling records after the requested line number.
- */
- to_line?: number;
- toLine?: number;
- /**
- * If true, ignore whitespace immediately around the delimiter, defaults to false.
- * Does not remove whitespace in a quoted field.
- */
- trim?: boolean;
- }
- export interface Info {
- /**
- * Count the number of lines being fully commented.
- */
- readonly comment_lines: number;
- /**
- * Count the number of processed empty lines.
- */
- readonly empty_lines: number;
- /**
- * The number of lines encountered in the source dataset, start at 1 for the first line.
- */
- readonly lines: number;
- /**
- * Count the number of processed records.
- */
- readonly records: number;
- /**
- * Count of the number of processed bytes.
- */
- readonly bytes: number;
- /**
- * Number of non uniform records when `relax_column_count` is true.
- */
- readonly invalid_field_length: number;
- /**
- * Normalized verion of `options.columns` when `options.columns` is true, boolean otherwise.
- */
- readonly columns: boolean | { name: string }[] | { disabled: true }[];
- }
- export type CsvErrorCode =
- 'CSV_INVALID_OPTION_BOM'
- | 'CSV_INVALID_OPTION_CAST'
- | 'CSV_INVALID_OPTION_CAST_DATE'
- | 'CSV_INVALID_OPTION_COLUMNS'
- | 'CSV_INVALID_OPTION_GROUP_COLUMNS_BY_NAME'
- | 'CSV_INVALID_OPTION_COMMENT'
- | 'CSV_INVALID_OPTION_DELIMITER'
- | 'CSV_INVALID_OPTION_ON_RECORD'
- | 'CSV_INVALID_CLOSING_QUOTE'
- | 'INVALID_OPENING_QUOTE'
- | 'CSV_INVALID_COLUMN_MAPPING'
- | 'CSV_INVALID_ARGUMENT'
- | 'CSV_INVALID_COLUMN_DEFINITION'
- | 'CSV_MAX_RECORD_SIZE'
- | 'CSV_NON_TRIMABLE_CHAR_AFTER_CLOSING_QUOTE'
- | 'CSV_QUOTE_NOT_CLOSED'
- | 'CSV_RECORD_INCONSISTENT_FIELDS_LENGTH'
- | 'CSV_RECORD_INCONSISTENT_COLUMNS'
- | 'CSV_OPTION_COLUMNS_MISSING_NAME'
- export class CsvError extends Error {
- readonly code: CsvErrorCode;
- [key: string]: any;
- constructor(code: CsvErrorCode, message: string | string[], options?: Options, ...contexts: any[]);
- }
- declare function parse(input: Buffer | string, options?: Options, callback?: Callback): Parser;
- declare function parse(input: Buffer | string, callback?: Callback): Parser;
- declare function parse(options?: Options, callback?: Callback): Parser;
- declare function parse(callback?: Callback): Parser;
- // export default parse;
- export { parse }
|