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101 lines
3.8 KiB
TypeScript
101 lines
3.8 KiB
TypeScript
/// <reference types="node" />
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import * as stream from "stream";
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export = stringify
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declare function stringify(callback?: stringify.Callback): stringify.Stringifier
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declare function stringify(options: stringify.Options, callback?: stringify.Callback): stringify.Stringifier
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declare function stringify(input: stringify.Input, callback?: stringify.Callback): stringify.Stringifier
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declare function stringify(input: stringify.Input, options?: stringify.Options, callback?: stringify.Callback): stringify.Stringifier
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declare namespace stringify {
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type Callback = (err: Error | undefined, output: string) => void
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type RecordDelimiter = string | Buffer | 'auto' | 'unix' | 'mac' | 'windows' | 'ascii' | 'unicode'
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type Cast<T> = (value: T, context: CastingContext) => string
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type PlainObject<T> = Record<string, T>
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type Input = any[]
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interface ColumnOption {
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key: string
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header?: string
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}
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interface CastingContext {
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readonly column?: number | string;
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readonly header: boolean;
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readonly index: number;
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readonly records: number;
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}
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interface Options {
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/**
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* Prepend the byte order mark (BOM) to the output stream.
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*/
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bom?: boolean
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/**
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* Key-value object which defines custom cast for certain data types
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*/
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cast?: {
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boolean?: Cast<boolean>
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date?: Cast<Date>
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number?: Cast<number>
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/**
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* Custom formatter for generic object values
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*/
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object?: Cast<Record<string, any>>
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string?: Cast<string>
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}
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/**
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* List of fields, applied when `transform` returns an object
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* order matters
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* read the transformer documentation for additionnal information
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* columns are auto discovered in the first record when the user write objects
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* can refer to nested properties of the input JSON
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* see the "header" option on how to print columns names on the first line
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*/
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columns?: string[] | PlainObject<string> | ColumnOption[]
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/**
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* Set the field delimiter, one character only, defaults to a comma.
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*/
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delimiter?: string | Buffer
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/**
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* Add the value of "options.RecordDelimiter" on the last line, default to true.
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*/
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eof?: boolean
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/**
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* Defaults to the escape read option.
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*/
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escape?: string | Buffer
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/**
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* Display the column names on the first line if the columns option is provided or discovered.
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*/
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header?: boolean
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/**
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* The quote characters, defaults to the ", an empty quote value will preserve the original field.
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*/
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quote?: string | Buffer | boolean
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/**
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* Boolean, default to false, quote all the non-empty fields even if not required.
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*/
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quoted?: boolean
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/**
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* Boolean, no default, quote empty fields and overrides `quoted_string` on empty strings when defined.
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*/
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quoted_empty?: boolean
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/**
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* String or RegExp, no default, quote all fields matching a regular expression.
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*/
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quoted_match?: string | RegExp
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/**
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* Boolean, default to false, quote all fields of type string even if not required.
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*/
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quoted_string?: boolean
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/**
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* String used to delimit record rows or a special value
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* special values are 'auto', 'unix', 'mac', 'windows', 'ascii', 'unicode'
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* defaults to 'auto' (discovered in source or 'unix' if no source is specified).
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*/
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record_delimiter?: RecordDelimiter
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}
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class Stringifier extends stream.Transform {
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constructor(options: Options)
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readonly options: Options
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}
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}
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