@sap-cloud-sdk/util/dist/code-block.js

SAP Cloud SDK for JavaScript general utilities

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.codeBlock = codeBlock;
const array_1 = require("./array");
const string_1 = require("./string");
/**
 * @experimental This API is experimental and might change in newer versions. Use with caution.
 * Transform strings and arguments to a string formatted as a code block, keeping the indentation of sub code blocks.
 * Use in tagged templates, e.g.:
 * ```
 * codeBlock`Code with ${arguments} and more code;`
 * ```
 * @param strings - Strings in the tagged template. In the example above that would be ['Code with ', ' and more code;'].
 * @param args - Arguments in the tagged template. In the example above that would be the resolved value for `arguments`;.
 * @returns A string formatted as code block.
 */
function codeBlock(strings, ...args) {
    const pre = strings.slice(0, -1).map(string => {
        const trimmed = trimRightNewlines(string);
        return trimmed.length === string.length ? string : `${trimmed}\n`;
    });
    pre.push(strings[strings.length - 1]);
    const indents = strings.slice(0, -1).map(s => {
        const indentation = s.split('\n').pop();
        return !indentation.trim() ? indentation : '';
    });
    const post = args.map((arg, i) => ('' + arg)
        .split('\n')
        .map(subArg => indents[i] + subArg)
        .join('\n'));
    const zipped = (0, array_1.zip)(pre, post);
    return (0, string_1.trim)(zipped.join(''));
}
function trimRightNewlines(string) {
    let subStrings = string.split('\n');
    if (!subStrings[subStrings.length - 1].trim()) {
        subStrings = subStrings.slice(0, -1);
    }
    return subStrings.join('\n');
}
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