### LC_NUMERIC Locale Category

The LC_NUMERIC category source definition in locale source files specifies the rules and symbols used to format non-monetary numeric data in the locale that is compiled from that source by the LOCALDEF utility.

The following keywords make up this category definition, and have operands that are strings.

- copy
- decimal_point
- thousands_sep
- grouping

`copy``
` Specifies the name of an existing locale to be used as the source for the definition of this category. If this keyword is specified, no other keyword should be present in this category. If the locale is not found, an error is reported and no locale output is created. The `copy` keyword cannot specify a locale that also specifies the `copy` keyword for the same category.

`decimal_point`
Specifies a string used as the decimal delimiter in numeric, non-monetary formatted quantities. This keyword cannot be omitted and cannot be set to the empty string.

`thousands_sep``
` Specifies a string containing the symbol that is used as a separator for groups of digits to the left of the decimal delimiter in numeric, non-monetary, formatted quantities.

`grouping`
Defines the size of each group of digits in formatted non-monetary quantities. The operand is a string representing a sequence of integers separated by semicolons. Each integer specifies the number of digits in each group, with the initial integer defining the size of the group immediately preceding the decimal delimiter, and the following integers defining the preceding groups. If the last integer is not -1, then the size of the digits. If the last integer is -1, then no further grouping is performed. An empty string is interpreted as -1.

Example: LC_NUMERIC Locale Category Definition

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