keyword

Helpers for Lua keywords and identifiers.

Usage

kw = require "mods.keyword"

kw.iskeyword("local"))         --> true
kw.isidentifier("hello_world") --> true

Functions

Function	Description
iskeyword(v)	Return true when v is a reserved Lua keyword.
isidentifier(v)	Return true when v is a valid non-keyword Lua identifier.
kwlist()	Return Lua keywords as a mods.List.
kwset()	Return Lua keywords as a mods.Set.
normalize_identifier(s)	Normalize an input into a safe Lua identifier.

iskeyword(v)

Return true when v is a reserved Lua keyword.

Parameters:

• v (any): Value to validate.

Return:

• isKeyword (boolean): Whether the check succeeds.

Example:

kw.iskeyword("function") --> true
kw.iskeyword("hello") --> false

isidentifier(v)

Return true when v is a valid non-keyword Lua identifier.

Parameters:

• v (any): Value to validate.

Return:

• isIdentifier (boolean): Whether the check succeeds.

Example:

kw.isidentifier("hello_world") --> true
kw.isidentifier("local") --> false

kwlist()

Return Lua keywords as a mods.List.

Return:

• words (mods.List<string>): List of Lua keywords.

Example:

kw.kwlist():contains("and") --> true

kwset()

Return Lua keywords as a mods.Set.

Return:

• words (mods.Set<string>): Set of Lua keywords.

Example:

kw.kwlset():contains("and") --> true

normalize_identifier(s)

Normalize an input into a safe Lua identifier.

Parameters:

• s (string): Input string.

Return:

• identifier (string): Normalized Lua identifier.

Example:

kw.normalize_identifier(" 2 bad-name ") --> "_2_bad_name"