Class: RightCharColumn

RightCharColumn()

Right-aligned, space-padded character column. Trims whitespace when parsing values, and pads with leading spaces when serializing.

Constructor

new RightCharColumn()

Source:
Example
const col = new RightCharColumn('code', 5, 'Product Code');
col.toValue('  A12'); // 'A12'
col.toStr('A12'); // '  A12'

Extends

Members

description :string

Description of the column.
Type:
  • string
Inherited From:
Source:

end :number

1-indexed end position of the column within a row line.
Type:
  • number
Inherited From:
Source:

name :string

Name of the column.
Type:
  • string
Inherited From:
Source:

size :number

Character width of the column.
Type:
  • number
Inherited From:
Source:

start :number|null

1-indexed start position of the column within a row line.
Type:
  • number | null
Inherited From:
Source:

Methods

toStr(value) → {string}

Serializes value into a right-aligned, space-padded fixed-width string.
Parameters:
Name Type Description
value string | null String value to serialize. Null/undefined serializes to spaces.
Overrides:
Source:
Throws:
If value is not a string or exceeds column size.
Type
Error
Returns:
Space-padded fixed-width string.
Type
string

toValue(slice) → {string}

Converts raw string slice from file to column value (trimmed string).
Parameters:
Name Type Description
slice string Raw fixed-width slice.
Overrides:
Source:
Returns:
Trimmed string value.
Type
string

validateToStrSize(value) → {string}

Validates that a formatted string representation matches the required column size.
Parameters:
Name Type Description
value string The formatted string to validate.
Inherited From:
Source:
Throws:
If formatted string length does not equal column size.
Type
Error
Returns:
The validated string.
Type
string