molstar
Version:
A comprehensive macromolecular library.
51 lines (50 loc) • 1.83 kB
JavaScript
;
/**
* Copyright (c) 2017 mol* contributors, licensed under MIT, See LICENSE file for more info.
*
* @author David Sehnal <david.sehnal@gmail.com>
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.FixedColumnProvider = FixedColumnProvider;
exports.FixedColumn = FixedColumn;
const db_1 = require("../../../../../mol-data/db");
const tokenizer_1 = require("../tokenizer");
const number_parser_1 = require("../number-parser");
function FixedColumnProvider(lines) {
return function (offset, width, type) {
return FixedColumn(lines, offset, width, type);
};
}
function FixedColumn(lines, offset, width, schema) {
const { data, indices, count: rowCount } = lines;
const { valueType: type } = schema;
const value = type === 'str' ? row => {
const s = indices[2 * row] + offset, le = indices[2 * row + 1];
if (s >= le)
return '';
let e = s + width;
if (e > le)
e = le;
return (0, tokenizer_1.trimStr)(data, s, e);
} : type === 'int' ? row => {
const s = indices[2 * row] + offset;
if (s > indices[2 * row + 1])
return 0;
return (0, number_parser_1.parseIntSkipLeadingWhitespace)(data, s, s + width);
} : row => {
const s = indices[2 * row] + offset;
if (s > indices[2 * row + 1])
return 0;
return (0, number_parser_1.parseFloatSkipLeadingWhitespace)(data, s, s + width);
};
return {
schema: schema,
__array: void 0,
isDefined: true,
rowCount,
value,
valueKind: row => 0 /* Column.ValueKinds.Present */,
toArray: params => db_1.ColumnHelpers.createAndFillArray(rowCount, value, params),
areValuesEqual: (rowA, rowB) => value(rowA) === value(rowB)
};
}