@convo-lang/convo-lang/src/lib/convo-code-block-lib.js

The language of AI

import { unescapeHtml } from '@iyio/common';
import { unescapeConvo } from './convo-parser.js';
import { convoMessageSourceReferenceKey } from './convo-types.js';
const blockReg = /(?<start>(^|\r|\n)[ \t]*)<(?<tagName>[\w-]+)(?<attributes>[^>]*)>[ \t\r\n]*```[ \t]*(?<lang>[\w-]+)(?<content>[\s\S]*?)```[ \t\r\n]*<\/\k<tagName>>/g;
const attReg = /(?<name>[\w-]+)([ \t]*=[ \t]*("(?<dq>[^"]*)"|'(?<sq>[^']*)'))?/g;
export const parseConvoCodeBlocks = (text, indexOffsetOrParentMessage, blockIndexOffset = 0) => {
    let indexOffset;
    if (typeof indexOffsetOrParentMessage === 'number') {
        indexOffset = indexOffsetOrParentMessage;
    }
    else if (indexOffsetOrParentMessage) {
        const src = indexOffsetOrParentMessage[convoMessageSourceReferenceKey];
        if (src && indexOffsetOrParentMessage.s !== undefined && indexOffsetOrParentMessage.e !== undefined) {
            text = src.source.substring(indexOffsetOrParentMessage.s, indexOffsetOrParentMessage.e);
        }
        indexOffset = indexOffsetOrParentMessage.s ?? 0;
    }
    else {
        indexOffset = 0;
    }
    blockReg.lastIndex = 0;
    let blocks;
    let match;
    while (match = blockReg.exec(text)) {
        const start = match.groups?.['start'] ?? '';
        const tagName = match.groups?.['tagName'] ?? '';
        const attributes = match.groups?.['attributes'] ?? '';
        const lang = match.groups?.['lang'] ?? '';
        const atts = {};
        attReg.lastIndex = 0;
        let attMatch;
        while (attMatch = attReg.exec(attributes)) {
            atts[attMatch.groups?.['name'] ?? ''] = unescapeHtml(attMatch.groups?.['dq'] ?? attMatch.groups?.['sq'] ?? '');
        }
        if (!blocks) {
            blocks = [];
        }
        blocks.push({
            tagName,
            attributes: atts,
            lang,
            content: normalizeConvoCodeBlockContent(tagName, match.groups?.['content'] ?? '', atts),
            index: blockIndexOffset + blocks.length,
            startIndex: indexOffset + (match.index ?? 0) + start.length,
            endIndex: indexOffset + (match.index ?? 0) + match[0].length,
        });
    }
    return blocks;
};
export const normalizeConvoCodeBlockContent = (tag, content, attrs) => {
    content = content.trim();
    content = unescapeConvo(content);
    const closing = attrs?.['closing-escape'];
    if (closing) {
        content = content.split(closing).join(`</${tag}>`);
    }
    return content.endsWith('\n') ? content : content + '\n';
};
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