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Viewing file:     stringifyDocument.js (2.91 KB)      -rw-r--r--

import { isNode } from '../nodes/identity.js';
import { createStringifyContext, stringify } from './stringify.js';
import { indentComment, lineComment } from './stringifyComment.js';

function stringifyDocument(doc, options) {
    const lines = [];
    let hasDirectives = options.directives === true;
    if (options.directives !== false && doc.directives) {
        const dir = doc.directives.toString(doc);
        if (dir) {
            lines.push(dir);
            hasDirectives = true;
        }
        else if (doc.directives.docStart)
            hasDirectives = true;
    }
    if (hasDirectives)
        lines.push('---');
    const ctx = createStringifyContext(doc, options);
    const { commentString } = ctx.options;
    if (doc.commentBefore) {
        if (lines.length !== 1)
            lines.unshift('');
        const cs = commentString(doc.commentBefore);
        lines.unshift(indentComment(cs, ''));
    }
    let chompKeep = false;
    let contentComment = null;
    if (doc.contents) {
        if (isNode(doc.contents)) {
            if (doc.contents.spaceBefore && hasDirectives)
                lines.push('');
            if (doc.contents.commentBefore) {
                const cs = commentString(doc.contents.commentBefore);
                lines.push(indentComment(cs, ''));
            }
            // top-level block scalars need to be indented if followed by a comment
            ctx.forceBlockIndent = !!doc.comment;
            contentComment = doc.contents.comment;
        }
        const onChompKeep = contentComment ? undefined : () => (chompKeep = true);
        let body = stringify(doc.contents, ctx, () => (contentComment = null), onChompKeep);
        if (contentComment)
            body += lineComment(body, '', commentString(contentComment));
        if ((body[0] === '|' || body[0] === '>') &&
            lines[lines.length - 1] === '---') {
            // Top-level block scalars with a preceding doc marker ought to use the
            // same line for their header.
            lines[lines.length - 1] = `--- ${body}`;
        }
        else
            lines.push(body);
    }
    else {
        lines.push(stringify(doc.contents, ctx));
    }
    if (doc.directives?.docEnd) {
        if (doc.comment) {
            const cs = commentString(doc.comment);
            if (cs.includes('\n')) {
                lines.push('...');
                lines.push(indentComment(cs, ''));
            }
            else {
                lines.push(`... ${cs}`);
            }
        }
        else {
            lines.push('...');
        }
    }
    else {
        let dc = doc.comment;
        if (dc && chompKeep)
            dc = dc.replace(/^\n+/, '');
        if (dc) {
            if ((!chompKeep || contentComment) && lines[lines.length - 1] !== '')
                lines.push('');
            lines.push(indentComment(commentString(dc), ''));
        }
    }
    return lines.join('\n') + '\n';
}

export { stringifyDocument };