1C (BSL) Language Support

[!WARNING] This plugin was created with the help of AI and has not been thoroughly reviewed or tested. It is still a work in progress and may contain bugs. Use it at your own risk, and please report any issues you find.

Syntax highlighting for the 1C:Enterprise built-in language (BSL) in Obsidian code blocks — both in reading mode and in the editor.

Supported tags

1c in any letter case, Cyrillic or Latin. The bsl and os (OneScript) tags are also supported.

Features

• keywords in Russian and English (Если/If, КонецЕсли/EndIf, Асинх/Async, Ждать/Await, etc.);
• global context methods (Сообщить, СтрДлина, Окр, ТекущаяДата, ЗначениеЗаполнено…) and platform types (Массив, Структура, Запрос…);
• Истина, Ложь, Неопределено, Null literals;
• strings, including multiline ones with | continuation and "" escaping;
• date literals '20240101', numbers, // and /* … */ comments;
• preprocessor directives (#Если Сервер Тогда, #Область) and annotations (&НаСервере, &Перед("Имя"));
• procedure and function names are highlighted at declaration, along with their parameters;
• operators (=, +, *, comparisons, И/Или/Не…) and punctuation;
• the token model matches the reference 1c-syntax grammar, in both reading and editing modes.

Installation

From the community plugin directory

Open Settings → Community plugins → Browse, search for "1C", then install and enable 1C (BSL) Language Support.

Manual installation

1. Download main.js and manifest.json from the latest GitHub release.
2. Place both files into a folder named onec-syntax-highlight inside your vault: <vault>/.obsidian/plugins/onec-syntax-highlight/
3. In Obsidian, open Settings → Community plugins:
   • if Restricted Mode is enabled — turn it off;
   • enable 1C (BSL) Language Support in the list.
4. If the plugin does not appear in the list — restart Obsidian.
5. Notes that were open before enabling the plugin may not highlight immediately — reopen them.

Quick check

Paste into a note:

```1c
Процедура Приветствие(Имя = "Мир") Экспорт
    Если Не ЗначениеЗаполнено(Имя) Тогда
        Имя = "мир";
    КонецЕсли;
    Сообщить(СтрШаблон("Привет, %1!", Имя)); // комментарий
КонецПроцедуры
```

Building from source

Requires Node.js 18+:

npm install
npm run build

main.js is a build artifact and is not committed to the repository — the build produces it in the project root. Copy it together with manifest.json into <vault>/.obsidian/plugins/onec-syntax-highlight/ (see the steps above).

Credits

The keyword and built-in function lists are based on the 1C language definitions from highlight.js (BSD-3-Clause) and Prism (MIT).

License: MIT.