js-slang/dist/utils/formatters.js

Javascript-based implementations of Source, written in Typescript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.simplify = exports.stripIndent = exports.oneLine = void 0;
function templateToString(content, variables) {
    if (typeof content === 'string') {
        return content;
    }
    return variables.reduce((built, fragment, index) => built + fragment + content[index + 1], content[0]);
}
function oneLine(content, ...variables) {
    return templateToString(content, variables)
        .replace(/(?:\n(?:\s*))+/g, ' ')
        .trim();
}
exports.oneLine = oneLine;
// Strips the "minimum indent" from every line in content,
// then trims whitespace at the beginning and end of the string.
//
// two spaces of "indent" removed from both lines:
//   stripIndent('  a\n  b') == 'a\nb'
// only one space of "indent" removed from both lines,
// because the first line only contains a single space of indent:
//   stripIndent(' a\n  b') == 'a\n b'
// first trims one space of indent from both lines,
// but later trims another space from the first line
// as it's at the beginning of the string:
//   stripIndent('  a\n b') == 'a\nb'
function stripIndent(content, ...variables) {
    const result = templateToString(content, variables);
    const match = result.match(/^[^\S\n]*(?=\S)/gm);
    const indent = match && Math.min(...match.map(el => el.length));
    if (indent) {
        return result.replace(new RegExp(`^.{${indent}}`, 'gm'), '').trim();
    }
    return result.trim();
}
exports.stripIndent = stripIndent;
function simplify(content, maxLength = 15, separator = '...') {
    if (content.length < maxLength) {
        return content;
    }
    const charsToTake = Math.ceil(maxLength - separator.length / 2);
    return content.slice(0, charsToTake) + ' ... ' + content.slice(charsToTake);
}
exports.simplify = simplify;
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