@accounter/server
Version:
Accounter GraphQL server
78 lines • 2.5 kB
JavaScript
/**
* Fixed-width formatting utilities
*/
import { CRLF } from '../../format/newline.js';
import { padLeft, padRight } from '../../format/padding.js';
/**
* Formats a field value with specified width and alignment
*
* @param value - The value to format
* @param width - Target field width
* @param align - Alignment ('left' or 'right')
* @param padChar - Character to use for padding (default: space)
* @returns Formatted fixed-width string
*/
export function formatField(value, width, align, padChar = ' ') {
if (align === 'left') {
return padRight(value, width, padChar);
}
return padLeft(value, width, padChar);
}
/**
* Encodes a value to fixed-width format with padding
*
* @param value - The value to encode
* @param width - Target width
* @param padChar - Padding character (default: space)
* @param align - Alignment ('left' or 'right')
* @returns Fixed-width encoded string
*/
export function encodeFixedWidth(value, width, padChar = ' ', align = 'left') {
const str = String(value);
return formatField(str, width, align, padChar);
}
/**
* Helper function to format numeric fields with zero padding
*/
export function formatNumericField(value, width) {
return padLeft(value, width, '0');
}
/**
* Joins an array of field values into a single record line with CRLF ending
* This is used by individual record encoders to create their output
*
* @param fields - Array of formatted field values
* @returns Single record line ending with CRLF
*/
export function joinFields(fields) {
return fields.join('') + CRLF;
}
/**
* Joins an array of record lines that already have CRLF endings
*
* @param lines - Array of record lines to join (each line should already end with CRLF)
* @returns Joined string
*/
export function joinRecords(lines) {
return lines.join('');
}
/**
* Joins an array of record lines and adds CRLF to each line
*
* @param lines - Array of record lines to join (without CRLF endings)
* @returns Joined string with CRLF line endings
*/
export function joinLinesWithCRLF(lines) {
return lines.map(line => line + CRLF).join('');
}
/**
* Creates a complete SHAAM format file by joining records
* This is the main function for assembling final file content
*
* @param records - Array of encoded record strings (each already ending with CRLF)
* @returns Complete file content ready for output
*/
export function assembleFile(records) {
return joinRecords(records);
}
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