This module provides parsers for gram notation, converting text into Pattern and Subject data structures.

Anonymous Subject Handling

The default fromGram function preserves anonymous subjects as 'Symbol ""' to enable round-trip compatibility. Anonymous subjects in gram notation (e.g., (), ()-[]->()) will be represented with empty identity.

If you need unique IDs assigned to anonymous subjects, use fromGramWithIds instead, which assigns sequential IDs (e.g., #1, #2) to all anonymous subjects.

String Value Syntax

The parser supports multiple string formats:

Double-quoted strings

Standard strings with escape sequences:

{ name: "Alice" }

Single-quoted strings

Literal strings without escape processing:

{ pattern: '[a-z]+' }

Codefence strings (multiline)

Triple-backtick delimited strings for multiline content:

{ content: ```
This content spans
multiple lines.
``` }

Tagged codefence strings

Codefence with a tag indicating the content type:

{ doc: ```md
# Markdown Title
Some **bold** text.
``` }

Tagged codefences are parsed as VTaggedString values with the tag and content stored separately.