fargv (fast-argv)

Multi-customizable parser of process.argv for nodejs.

Description

Fargv is a flag and command parser with the ability to configure options that tell fargv exactly how to handle a particular flag or command.

Fargv also provides processing of constructs such as objects and arrays using a special syntax that is very similar to javascript.

Fargv is sensitive to passed arguments and by default supports only the passed Latin alphabet, and the flags themselves must be passed using an equal sign.

If the first described situation can be expanded, then nothing can be done for the second, since this is the principle of correct operation of fargv.

Fargv has its own flag generator, which makes it easy to pass complex constructs between processes.

In General, Fargv can be a good option if you really need to configure argv parsing.

Changelog

HERE!

Install

$ npm install fargv

Usage

Example WITHOUT using static methods:

const fargv = require("fargv");

const argv = fargv({
	returnFilter: "flags",
	defaultNoneValue: "someDefault",
	noParseFlags: ["cc"],
	numericSeparator: true,
	boolean: true,
	minorTypes: true,
});

console.log(argv);

$ node ./withoutStaticMethods.js ---a=true --b=2_000_000 -cc=1_000_000 -d=NaN -e
{ a: true, b: 2000000, cc: '1_000_000', d: NaN, e: 'someDefault' }

Example WITH using static methods:

const fargv = require("fargv");

const { flags } = fargv
	.options({ defaultNoneValue: "someDefault" })
	.noParseFlags("c")
	.options({ minorTypes: true, array: true })
	.arrayParse({ bigint: true })
	.init()

console.log(flags);

$ node ./withStaticMethods.js -a=NaN -b -cc="[1n, 2_000n]" --d=1n
{ a: NaN, b: 'someDefault', cc: [ 1n, '2_000n' ], d: '1n' }

API

Types: HERE!

fargv(options: {} | array<string, string>, mergingWithFargvWrapperOptions: boolean | undefined)

Returns an object with the following interface:

interface fargvReturns {

	_?: {

		execNodePath?: string,
		execFilePath?: string,
		execFileBasename?: string,

	},

	warns: null | string[],

	flags: {

		[key: string]: any,

	},

	commands: string[],

}

Description of fargvReturns

_

An additional object that remembers some paths and names based on the first 2 "system" arguments.

_.execNodePath

Path to node js.

_.execFilePath

Path to the executable file.

_.execFileBasename

Executable file name.

warns

If there are no errors and the "rememberWarns" parameter is not set - null. Otherwise, it is a string array of warnings that occur during parsing.

flags

A flag object, where the name of the property is the flag name, and its value is the possibly parsed flag value.

commands

String array of commands that were stored during parsing.

fargvOptions interface

If you need to pass options from .js or .json file - the following structure is used:

type fargvOptionsFromFile = ["useConfigsFromFile", string]

Where the element at index 0 indicates that fargv really needs to process the incoming parameter as connecting a third-party configuration file. The second element is the path to the configuration file (we recommend using process.cwd with the path wrapper from the node.js).

The standard interface for options that are passed to fargv is as follows(fargvOptions):

interface mainParse {

	defaultNoneValue?: any,

	allTypes?: boolean,

	mainTypes?: boolean,
	minorTypes?: boolean,

	numericSeparator?: boolean,

	number?: boolean,

	bigint?: boolean,

	boolean?: boolean,
	array?: boolean,
	object?: boolean,

	null?: boolean,
	undefined?: boolean,
	NaN?: boolean,
	Infinity?: boolean,

}

interface fargvOptions extends mainParse {

	help?: {

		flagsToCall?: string[],

		status?: boolean,

		mainUsage?: string,
		mainDesc?: string,

		mainCustomEndText?: string,

		showMainCommands?: boolean,
		showMainFlags?: boolean,

		showForSpecificCommand?: boolean,
		showForSpecificFlag?: boolean,

		showExamples?: boolean | "commands" | "flags",
		showExamplesForSpecific?: boolean | "commands" | "flags",

		exit?: boolean,

		commands?: {

			[key: string]: {

				alias?: Array<string> | string,

				desc?: string,
				usage?: string,
				flags?: Array<string> | string,
				examples?: Array<string> | string,

			},

		},

		flags?: {

			[key: string]: {

				desc?: string,
				required?: boolean | string,
				deprecated?: boolean | string,
				empty?: boolean,
				type?: "string" | "number" | "array" | "object" | "bigint" | "boolean",
				alias?: Array<string> | string,
				examples?: Array<string> | string,

			}

		},

	},

	//commandName, handler, aliases
	commands?: ([string, Function, string[]])[],

	separateCommandHandler?: (state: fargvReturns, ...nextCommands: string[]) => void,

	callAppropriateCommandHandlerOnlyOnce?: boolean,
	alwaysCallSeparateCommandHanler?: boolean,
	nextCommandsAsArray?: boolean,

	customArgv?: string[],

	defaultArgv?: {

		//value, aliases
		[key: string]: [any, string[]]

	},

	demandWithSkippedFlags?: string[],
	demandFlags?: string[],

	excludeFlags?: string[],

	noParseFlags?: string[],
	noParseNoDefaultFlags?: string[],

	returnFilter?: string | string[],

	rememberExecNodePath?: boolean,
	rememberExecFilePath?: boolean,
	rememberExecFileBasename?: boolean,

	rememberWarns?: boolean,
	showWarns?: boolean,

	parseWarn?: ({}: { mainMessage: string, debugDetails: { [key: string]: any }, code: number, fullMessage: string }) => void,

	throwInsteadWarns?: boolean,

	includeEmptyFlags?: boolean,
	unlimitedFlagDefinitionCharacters?: boolean,
	supportOnlyLatinArgs?: boolean,

	defaultCommaSplitSym?: string,
	allowSpacesAsValues?: boolean,
	useDnvForFirstSpaceOP?: boolean,

	noParse?: boolean,
	noParseNoDefault?: boolean,
	allParse?: boolean,

	mainParse?: mainParse,

	arrayParse?: {

		maxRecursiveCalls?: number,

	} & mainParse,

	objectParse?: {

		ifDuplicateKey?: {
			rewrite?: boolean,
			warn?: boolean,
		},

		maxRecursiveCalls?: number,

	} & mainParse,

}

Description of options

help

Required to display the help menu.

help.flagsToCall

Array of flags that will display the help menu.

Example:

fargv({
	help: {
		status: true,
		flagsToCall: ["h", "help", "HELP", "otherHelpAlias"]
	}
})

help.status

Status that tells fargv whether to show the help menu.

help.mainUsage

Text of the main usage section.

help.mainDesc

Text of the main description section.

help.mainCustomEndText

Additional text that is displayed at the end. Can be used as a custom help menu.

help.showMainCommands

Responsible for displaying help about commands.

help.showMainFlags

Responsible for displaying help about flags.

help.showForSpecificCommand

Responsible for displaying help about a specific command that is passed to the only one.

help.showForSpecificFlag

Responsible for displaying help about a specific flag that is passed to the only one.

help.showExamples

Responsible for displaying examples in the main section of the help menu. It can take the values "commands" and "flags" to display examples in these sections.

help.showExamplesForSpecific

Responsible for showing examples for a specific flag or command in the help menu. It can take the values "commands" and "flags" to display examples in these sections.

help.exit

Answers - whether to end the process after displaying the help menu.

help.commands

Object of commands that parameters will be read from when creating the help menu.

Example:

fargv({
	help: {
		status: true,
		commands: {

			someCommand: {

				a: "aliasOfSomeCommand",
				desc: "some description of someCommand",
				usage: "someCommand [someOther]",
				flags: ["a", "b"],
				examples: ["someCommand someSubCommand", "someCommand someSecondSubCommand"]

			},

			someSecondCommand: {

				desc: "some description of someSecondCommand"

			}

		}
	}
})

help.commands[command].alias

Array of aliases for this command. It can be a string that turns into an array during parsing.

help.commands[command].desc

Text for the description section in this command.

help.commands[command].usage

Text for the usage section in this command.

help.commands[command].flags

Flags that this command is associated with and that will be shown next.

help.commands[command].examples

An array of examples consisting of strings that will be shown in the examples section. Can be a string.

help.flags

Object of flags that parameters will be read from when creating the help menu.

help.flags[flag].desc

Text for the description section in this flag.

help.flags[flag].required

If Boolean true - shows [required], if string - shows [required: text].

help.flags[flag].deprecated

A string that shows text like this in the flags section: [deprecated: text].

help.flags[flag].empty

If true, it shows [must be empty], if false, it shows [must be with value], otherwise it doesn't show anything in the flags section.

help.flags[flag].type

help.flags[flag].alias

Array of aliases for this flag. It can be a string that turns into an array during parsing.

help.flags[flag].examples

An array of examples consisting of strings that will be shown in the examples section. Can be a string.

descOfOptions

commands

An array of commands that should include arrays containing the command name, the command handler, and an array of command aliases.

Example:

fargv({ 
	commands: [ 
		["commandName", function (){}, []],
		["secondCommand", state => {}, []]
	]
})

separateCommandHandler

A separate handler for any commands that will be called if no other handlers were called or if the alwaysCallSeparateCommandHanler option is true.

callAppropriateCommandHandlerOnlyOnce

If true, stops calling other possible command handlers. The default value is true.

alwaysCallSeparateCommandHanler

If true, it calls separateCommandHandler in any case. By default, it is false.

nextCommandsAsArray

If true, the second argument to the command handler will pass an array of the remaining commands. Otherwise, the spread format will work. By default, it is false.

customArgv

An array of strings that can be used as an alternative parsing of your own arguments. Must accept syntax-correct arguments like equal-sign flags.

Example:

fargv({
	customArgv: [
		"--flagName=flagValue",
		"--secondFlagName=secondFlagValue"
	]
})

defaultArgv

An object where the property name is a flag to which default values can be applied, and the property value is an array, where the first element is the default value itself, and the second is an array of aliases for this flag.

Example:

fargv({
	defaultArgv: {
		someFlagName: ["someDefaultFlagValue", ["someFlagAlias"]]
	}
})

demandFlags

An array of string flags which are required to be transferred in this process. If any of the flags are not present, regardless of the throwInsteadWarns option throws an exception of the type "required flags are missing".

Example:

fargv({
	demandFlags: ["a", "b"]
})

demandWithSkippedFlags

Same as demandFlags, but given the missing from the parsing of the flags. We recommend using this option if some flags were excluded from the returned object using excludeFlags, but need to be passed to this process.

excludeFlags

Array of string flags that should be skipped and not returned in the flag sections.

Example:

fargv({
	excludeFlags: ["someFlag", "someOtherFlag"]
})

noParseFlags

Array of string flags that don't need to be parsed. Important note - defaultNoneValue and defaultArgv take priority over this option, respectively, the default values will be set if the flag does not have a value.

noParseNoDefaultFlags

Same as noParseFlags, but excludes the priority of defaultNoneValue (without defaultArgv). If the flag has no value, the default value is assigned from defaultArgv or undefined.

returnFilter

A string or array of strings that tells fargv in which format to return a particular property. If a string or array with a single element is passed, it returns a property that is equal to the passed argument (if the property is missing, an empty object is returned). If an array of strings is passed, a filtered object is returned, where the properties are the same as the array elements.

Example:

fargv({
	returnFilter: ["flags", "commands"]
})

rememberExecNodePath

Logical option. If true, it remembers the path to the node in the _ property of the returned object. By default, false.

rememberExecFilePath

Logical option. If true, it remembers the path to the main executable file in the _ property of the returned object. By default, true.

rememberExecFileBasename

Logical option. If true, remembers the name of the main executable file in the _ property of the returned object. By default, true.

rememberWarns

Logical option. If true, it remembers all errors that occur during parsing in the "warns" array property. By default, false.

showWarns

Logical option. If true, it shows warnings that occur during parsing using the console.warn . By default, true.

parseWarn

User-defined function, if set - fargv tells it the details of the warning.

throwInsteadWarns

Logical option. If true, throws an exception instead of storing or logging the error during parsing. By default, it is false.

includeEmptyFlags

Logical option. If true, parses flags without the value passed through the equal sign. The default value is true.

unlimitedFlagDefinitionCharacters

Logical option. If true, it doesn't matter how many characters that say that this argument is a flag is needed. The default value is true.

supportOnlyLatinArgs

Logical option. If true, fargv considers that flags are passed only through the Latin alphabet of any case. The default value is true.

defaultCommaSplitSym

The symbol that will be used for splitting arrays and objects in parsing. The default value is , .

Example with , :

const argv = fargv({
	returnFilter: "flags",
	allParse: true
});

console.log(argv);

$ node ./exampleWithComma.js -a="[some, value, v, true]"
{ a: [ 'some', 'value', 'v', true ] }

Example with # :

const argv = fargv({
	returnFilter: "flags",
	allParse: true,
	defaultCommaSplitSym: "#",
});

console.log(argv);

$ node ./exampleWithHash.js -a="[some# value, v# true]"
{ a: [ 'some', 'value, v', true ] }

allowSpacesAsValues

This is an option for arrays and objects. The default value is true.

Functionality in an array: if true, allows spaces between delimiters to be an independent value. Otherwise, the value is taken from arrayParse.defaultNoneValue.

Example with true value:

const argv = fargv({
	returnFilter: "flags",
	allParse: true,
	allowSpacesAsValues: true,
});

console.log(argv);

$ node ./allowSpacesAsValuesTrue.js -a="[some, value, v, ,true]"
{ a: [ 'some', 'value', 'v', ' ', true ] }

Example with false value:

const argv = fargv({
	returnFilter: "flags",
	allParse: true,
	allowSpacesAsValues: false,
});

console.log(argv);

$ node ./allowSpacesAsValuesFalse.js -a="[some, value, v, ,true]"
{ a: [ 'some', 'value', 'v', null, true ] }

Functionality in the object - depends on the useDnvForFirstSpaceOP option.

useDnvForFirstSpaceOP (useDefaultNoneValueForFirstSpaceInObjectProp)

Logical option for parsing object properties. The default value is true.

Answers whether to apply objectParse.defaultNoneValue to possible properties consisting of a single space.

Allows a space in a possible object property only if the allowSpacesAsValues option is set to true and useDnvForFirstSpaceOP is false.

Example:

const argv = fargv.objectParse({
	defaultNoneValue: 4,
}).init({
	returnFilter: "flags",
	allParse: true,
	allowSpacesAsValues: true,
	useDnvForFirstSpaceOP: false,
}, true);

console.log(argv);

$ node ./useDnvForFirstSpaceOP.js -f="{a: 1, b: , c: 3, d:  ,}"
{ f: { a: 1, b: ' ', c: 3, d: 4 } }

The example shows that the property b was assigned the value ' ', and d got the value 4. This happened because b had one space, and d had 2 spaces.

noParse

Logical option. It has the same purpose as noParseFlags, but it can be set for all flags at once. By default, it is false.

noParseNoDefault

Logical option. It has the same purpose as noParseNoDefaultFlags, but it can be set for all flags at once. By default, it is false.

allParse

Logical option. If true - sets true on all properties in mainParse, arrayParse, and objectParse, which allows you to parse absolutely everything. By default, it is false.

defaultNoneValue or mainParse.defaultNoneValue

The default value that a flag should get that doesn't have a value for one reason or another (for example, passing the flag as follows: --flag, --flag= ). By default, null.

allTypes or mainParse.allTypes

Logical option. If true, it parses everything within the main level(without affecting the parsing settings for arrays and objects). By default, it is false.

mainTypes or mainParse.mainTypes

Logical option. If true, sets the values of properties mainParse.boolean, mainParse.array and mainParse.object to true. By default, false.

minorTypes or mainParse.minorTypes

Logical option. If true, sets the values of properties mainParse.null, mainParse.undefined, mainParse.NaN and mainParse.Infinity to true. By default, false.

numericSeparator or mainParse.numericSeparator

Logical option. If true, values with underscores are parsed as numbers in accordance with the new standard. By default, it is false.

number or mainParse.number

Logical option. If true, the values will try to be parsed as numbers. By default, it is true.

bigint or mainParse.bigint

Logical option. If true, the values will try to be parsed as BigInt. By default, it is false.

boolean or mainParse.boolean

Logical option. If true, the values will try to be parsed as Boolean values (true or false). By default, it is false.

array or mainParse.array

Logical option. If true, the values will try to be parsed as arrays. By default, it is false.

object or mainParse.object

Logical option. If true, the values will try to be parsed as objects. By default, it is false.

null or mainParse.null

Logical option. If true and the flag value is null, it equates the value to null. By default, it is false.

undefined or mainParse.undefined

Logical option. If true and the flag value is undefined, it equates the value to undefined. By default, it is false.

NaN or mainParse.NaN

Logical option. If true and the flag value is NaN, it equates the value to NaN. By default, it is false.

Infinity or mainParse.Infinity

Logical option. If true and the flag value is Infinity, it equates the value to Infinity. By default, it is false.

arrayParse.maxRecursiveCalls

The number responsible for the number of maximum recursions, if, for example, an array is parsed in an array. The default value is 10.

arrayParse.defaultNoneValue, allTypes, ...

arrayParse takes over from mainParse properties that regulate parsing values, but only now in the area of parsing array elements.

The only difference here is in the default values. Instead of false, the following properties have true: boolean, null, undefined.

objectParse.ifDuplicateKey

Answers what to do if duplicate properties are found during object parsing.

objectParse.ifDuplicateKey.rewrite

Logical option. If true, it enters a new value in an existing property. The default value is true.

objectParse.ifDuplicateKey.warn

Logical option. If true, it indicates whether fargv should use errorHandler in the current situation. The default value is true.

objectParse.maxRecursiveCalls

The number responsible for the number of maximum recursions, if, for example, an object is parsed in an object. The default value is 10.

arrayParse.defaultNoneValue, allTypes, ...

objectParse takes over from mainParse properties that regulate parsing values, but only now in the area of parsing object elements.

The only difference here is in the default values. Instead of false, the following properties have true: boolean, null, undefined.

Static methods

fargv.options(options: {} | "reset", redefine: any)

Sets parsing options in fargvWrapper._options. By default, a merge is performed if the redefine argument is not passed. Can be called with the 1st "reset" argument, which will set fargvWrapper._options to null.

fargv.createOptions()

If fargvWrapper._options is not an object, this method will set the object.

fargv.reset(option: string)

Resets the option passed in the option argument

fargv.resetAll()

Resets all options.

fargv.command(command, handler, help)

Sets the commands option. If only one function is passed as a single argument, the separateCommandHandler option is set.

Interface:

interface staticFargvCommand {
	
	command: "reset" | Function | string | string[],
	handler: (state: fargvReturns, ...nextCommands: string[]) => void,
	help?: {

		[a | alias | aliases]?: array<string> | string,
		desc?: string,
		usage?: string,
		flags?: array<string> | string,
		examples?: array<string> | string,
		
	}
	
}

fargv.separateCommand(handler: Function, alwaysCallSeparateCommandHanler: boolean)

Sets the separateCommandHandler and/or alwaysCallSeparateCommandHanler option.

fargv.optionFlag(optionName: string, optionConfig: {})

Sets the help.flags[optionName] option.

Interface:

interface optionConfig {

	desc?: string,
	required?: boolean | string,
	deprecated?: boolean | string,
	empty?: boolean,
	type?: "string" | "number" | "array" | "object" | "bigint" | "boolean",
	[a | alias | aliases]?: array<string> | string,
	examples?: array<string> | string,

}

interface staticSetOptionFlag {

	optionName: string,
	optionConfig: optionConfig

}

fargv.optionVersion(version: string, noExit?: boolean, optionConfig?: {})

The same as fargv.optionFlag(version, optionConfig) with some additions.

fargv.optionCommand(commandName: string, commandHelpConfig: {})

Sets the help.commands[commandName] option.

Interface:

interface commandHelpConfig {

	[a | alias | aliases]?: array<string> | string,
	desc?: string,
	usage?: string,
	flags?: array<string> | string,
	examples?: array<string> | string,

}

interface staticSetOptionCommand {

	commandName: string,
	commandHelpConfig: commandHelpConfig

}

fargv.help(objectOfHelp: staticIntegrateHelp | "reset")

Sets the help object with properties.

Interface:

interface staticIntegrateHelp {

	flagsToCall: array | string,
	concatFlagsToCall: true | boolean,

	mainUsage: string,
	mainDesc: string,

	mainCustomEndText: string,

	showMainCommands: boolean,
	showMainFlags: boolean,

	showForSpecificCommand: boolean,
	showForSpecificFlag: boolean,

	showExamples: boolean | "commands" | "flags",
	showExamplesForSpecific: boolean | "commands" | "flags",

	exit: boolean,

	commands: commandHelpConfig,
	flags: optionConfig,

}

fargv.default(objectOfValues, redefine)

Sets the defaultArgv option.

Interface:

interface staticSetDefaultArgv {

	objectOfValues: "reset" | {
		
		[key: string] : any | {

			_options: {
				
				[value | argValue | v]: [undefined, "$notFill"] | any,
				[alias | a | aliases]: string | string[],
				
			}
			
		} | ["$fargvSetDefault", [undefined, "$notFill"] | any, string | string[]]
		
	},
	redefine: any
	
}

fargv.custom(customArgv)

Sets the customArgv option.

Interface:

interface staticSetCustomArgv {

	customArgv: [
		
		...array<string, string>
		
	]
	
}

fargv.customWithGenerate(...args)

Sets the customArgv option by generating (see fargv.generate interface).

fargv.customWithGenerateFromObject(...args)

Sets the customArgv option by generating from an object (see fargv.generateFromObject interface).

fargv.demand(args: "reset" | string | string[], withSkipArgs: boolean)

Sets the demandFlags or demandWithSkippedFlags option.

fargv.undemand(args: string | string[], withSkipArgs: boolean)

Unsets the demandFlags or demandWithSkippedFlags option.

fargv.exclude(excludeFlags: "reset" | string | string[], redefine: any)

Sets the excludeFlags option.

fargv.noParse(state: boolean, isNoParseNoDefault: boolean)

Sets the noParse or noParseNoDefault option.

fargv.noParseFlags(noParseFlags: "reset" | string | string[], isNoParseNoDefaultFlags: boolean)

Sets the noParseFlags or noParseNoDefaultFlags option.

fargv.allParse(allParseState: boolean)

Sets the allParse option.

fargv.returnFilter(newReturnFilterValue: string | string[])

Sets the returnFilter option.

fargv.remember(rememberState: staticSetRemember)

Sets the following options: rememberExecNodePath, rememberExecFilePath, rememberExecFileBasename.

Interface:

interface staticSetRemember {
	
	[file | fileName | execFileBasename]?: boolean,
	[filePath | execFilePath]?: boolean,
	[node | nodePath | execNodePath]?: boolean,
	
}

fargv.warns(optionsState: staticSetWarns)

Sets the following options: rememberWarns, showWarns, throwInsteadWarns, parseWarn.

Interface:

interface staticSetWarns {

	remember?: boolean,
	show?: boolean,
	["throw" | throwInsteadWarns]?: boolean,
	parser: Function,

}

fargv.arrayParse(arrayParse: "reset" | {}, redefine: any)

Sets the arrayParse option.

fargv.objectParse(objectParse: "reset" | {}, redefine: any)

Sets the objectParse option.

fargv.state(about)

Returns the current state based on the passed about argument.

fargv.fromArray(sourceArray: [], useSpacesAsDelimiters: boolean)

Returns a string with special syntax based on an array.

fargv.fromObject(sourceObject: {}, useSpacesAsDelimiters: boolean)

Returns a string with special syntax based on an object.

fargv.toArray(sourceString: string, mergingOptions: {})

Returns an array based on a string with special fargv syntax.

fargv.toObject(sourceString: string, mergingOptions: {})

Returns an object based on a string with special fargv syntax.

fargv.strIsArray(sourceString: string, mergingOptions: {})

Checks whether a string can be an array using the fargv syntax.

fargv.strIsObject(sourceString: string, mergingOptions: {})

Checks whether a string can be an object using the fargv syntax.

fargv.strIsStrictArray(sourceString: string, mergingOptions: {})

Returns the same as fargv.strIsArray, but the check is more strict.

fargv.strIsStrictObject(sourceString: string, mergingOptions: {})

Returns the same as fargv.strIsObject, but the check is more strict.

fargv.generate(argName, argValue, ...args)

Transforms arrays, objects, and other values into a string-specific syntax that allows fargv to parse these as values.

Interface:

interface generateElementStructure {

	[name | argName | n]: string,
	[value | argValue | v]: any,
	[flag | f | flagDC]: number,
	[pre | p | prePush]: (res: string) => string,
	[wes | withoutES | withoutEqualSym]: boolean,

}

interface generate_OptionsStructure {

	useSpacesAsDelimiters: boolean | {
		array: boolean,
		object: boolean,
	}

}

interface generateOptionsStructure {

	_options: generate_OptionsStructure

}

type generateElementOrOptions = generateElementStructure | generateOptionsStructure;

function generate(argName: generateElementOrOptions, argValue: generateElementOrOptions, ...args: generateElementOrOptions[]): string {}
function generate(argName: generateElementOrOptions, argValue: generateElementOrOptions): string {}
function generate(argValue: generateElementOrOptions): string {}
function generate(argValue: array<generateElementOrOptions>): string {}
function generate(argName: string, argValue: any, options: generateOptionsStructure | generate_OptionsStructure): string {}
function generate(argName: string, argValue: any): string {}

fargv.generateFromObject(getParsedArgs, objectOfValues, objectOfConfigs)

The same as fargv.generate only with a different interface.

Interface:

interface generateFromObjectElementStructure {

	[key: string]: any

}

interface generateFromObjectOptionsStructure {

	_options: generate_OptionsStructure & {

		_more: {

			_throwInsteadWarns: false | boolean,

			before: {
				[key: string]: generate_OptionsStructure
			},

			after: {
				[key: string]: generate_OptionsStructure
			}

		}

	}

	[key: string]: {

		[flag | f | flagDC]: number,
		[pre | p | prePush]: (res: string) => string,
		[wes | withoutES | withoutEqualSym]: boolean,

	}

}

function generateFromObject(objectOfValues: generateFromObjectElementStructure, objectOfConfigs?: generateFromObjectOptionsStructure): string {}
function generateFromObject(getParsedArgs: true, objectOfValues: generateFromObjectElementStructure, objectOfConfigs?: generateFromObjectOptionsStructure): array<generateElementOrOptions> {}

fargv.init(options, mergingWithFargvWrapperOptions)

The initialization parsing. If nothing is passed, it is based on fargvWrapper._options. If an object is passed without a subsequent true argument, it is based solely on this object. If the first argument is passed an object, and the second is true - merges the received object with fargvWrapper._options and starts initialization.

fargv.initF()

Alias of fargv.returnFilter("flags").init(...arguments)

fargv.initC()

Alias of fargv.returnFilter("commands").init(...arguments)

fargv.initFC() && fargv.initCF()

Alias of fargv.returnFilter(["flags", "commands"]).init(...arguments)

Contacts

Yandex Mail - vladimirvsevolodovi@yandex.ru

Github - https://github.com/StormExecute/

Platforms

Github - https://github.com/StormExecute/fargv/

NPM - https://www.npmjs.com/package/fargv/

License

MIT - https://mit-license.org/

Files

README.md

Latest commit

History

README.md

File metadata and controls

fargv (fast-argv)

Description

Changelog

Table of Contents

Install

Usage

Example WITHOUT using static methods:

Example WITH using static methods:

API

fargv(options: {} | array<string, string>, mergingWithFargvWrapperOptions: boolean | undefined)

Description of fargvReturns

_

_.execNodePath

_.execFilePath

_.execFileBasename

warns

flags

commands

fargvOptions interface

Description of options

help

help.flagsToCall

help.status

help.mainUsage

help.mainDesc

help.mainCustomEndText

help.showMainCommands

help.showMainFlags

help.showForSpecificCommand

help.showForSpecificFlag

help.showExamples

help.showExamplesForSpecific

help.exit

help.commands

help.commands[command].alias

help.commands[command].desc

help.commands[command].usage

help.commands[command].flags

help.commands[command].examples

help.flags

help.flags[flag].desc

help.flags[flag].required

help.flags[flag].deprecated

help.flags[flag].empty

help.flags[flag].type

help.flags[flag].alias

help.flags[flag].examples

commands

separateCommandHandler

callAppropriateCommandHandlerOnlyOnce

alwaysCallSeparateCommandHanler

nextCommandsAsArray

customArgv

defaultArgv

demandFlags

demandWithSkippedFlags

excludeFlags

noParseFlags

noParseNoDefaultFlags

returnFilter

rememberExecNodePath

rememberExecFilePath

rememberExecFileBasename

rememberWarns

showWarns

parseWarn

throwInsteadWarns

includeEmptyFlags

unlimitedFlagDefinitionCharacters

supportOnlyLatinArgs

defaultCommaSplitSym

allowSpacesAsValues

useDnvForFirstSpaceOP (useDefaultNoneValueForFirstSpaceInObjectProp)

noParse