@itsmworkbench/utils
Version:
The usual utility functions
47 lines (46 loc) • 2.1 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseColumnsToJSON = exports.findColumnStartIndexes = void 0;
function findColumnStartIndexes(header) {
const startIndexes = [];
let isPreviousCharWhitespace = true;
for (let i = 0; i < header.length; i++) {
if (header[i] !== ' ' && isPreviousCharWhitespace) {
startIndexes.push(i);
isPreviousCharWhitespace = false;
}
else if (header[i] === ' ') {
isPreviousCharWhitespace = true;
}
}
return startIndexes;
}
exports.findColumnStartIndexes = findColumnStartIndexes;
function parseColumnsToJSON(input, colsToDrop = 0) {
// Split the input into lines
const lines = input.split('\n').filter(line => line.trim().length > 0);
// Determine the start of each column from the header row
const columnStartIndexes = findColumnStartIndexes(lines[colsToDrop]);
// Extract column names from the header row
const columnNames = columnStartIndexes.map((startIdx, index) => {
// The end index is the start of the next column or the end of the string
const endIdx = columnStartIndexes[index + 1] || lines[colsToDrop].length;
return lines[colsToDrop].substring(startIdx, endIdx).trim();
});
// Parse each row into a JSON object
const jsonObjects = lines.slice(colsToDrop + 1).map(row => {
const jsonObject = {};
columnStartIndexes.forEach((startIdx, index) => {
// Define the end index for substring extraction
const endIdx = columnStartIndexes[index + 1] || row.length;
// Extract and trim the value from the row
const value = row.substring(startIdx, endIdx).trim();
// Assign the value to the corresponding column name in the JSON object
// If the value is an empty string, assign undefined
jsonObject[columnNames[index]] = value === '' ? undefined : value;
});
return jsonObject;
});
return jsonObjects;
}
exports.parseColumnsToJSON = parseColumnsToJSON;