Claude Code transcript - page 11/12

The file /home/user/mquickjs-python/README.md has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
     1→# mquickjs-python
     2→
     3→A pure Python JavaScript engine, inspired by [MicroQuickJS](https://github.com/bellard/mquickjs).
     4→
     5→## Overview
     6→
     7→This project provides a JavaScript execution environment with:

Date: Wed Dec 24 16:31:45 2025 +0000
 1 file changed, 47 insertions(+), 10 deletions(-)

The file /home/user/mquickjs-python/README.md has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
    69→## Development
    70→
    71→This project uses [uv](https://github.com/astral-sh/uv) for dependency management.
    72→
    73→```bash
    74→# Run tests
    75→uv run pytest
    76→```
    77→
    78→## License
    79→
    80→MIT License - see [LICENSE](LICENSE) file.

Date: Wed Dec 24 16:31:45 2025 +0000
 1 file changed, 47 insertions(+), 13 deletions(-)

     1→# mquickjs-python
     2→
     3→A pure Python JavaScript engine, inspired by [MicroQuickJS](https://github.com/bellard/mquickjs).
     4→
     5→## Overview
     6→
     7→This project provides a JavaScript execution environment with:
     8→
     9→- **Memory limits** - Configurable maximum memory usage
    10→- **Time limits** - Configurable execution timeout
    11→- **Pure Python** - No C extensions or external dependencies
    12→- **Broad ES5+ support** - Variables, functions, closures, classes, iterators, promises, regex, and more
    13→
    14→## Usage
    15→
    16→```python
    17→from mquickjs_python import JSContext
    18→
    19→# Create a context with optional limits
    20→ctx = JSContext(memory_limit=1024*1024, time_limit=5.0)
    21→
    22→# Evaluate JavaScript code
    23→result = ctx.eval("1 + 2")  # Returns 3
    24→
    25→# Functions and closures
    26→ctx.eval("""
    27→    function makeCounter() {
    28→        var count = 0;
    29→        return function() { return ++count; };
    30→    }
    31→    var counter = makeCounter();
    32→""")
    33→assert ctx.eval("counter()") == 1
    34→assert ctx.eval("counter()") == 2
    35→
    36→# Regular expressions
    37→result = ctx.eval('/hello (\\w+)/.exec("hello world")')
    38→# Returns ['hello world', 'world']
    39→
    40→# Error handling with line/column tracking
    41→ctx.eval("""
    42→try {
    43→    throw new Error("oops");
    44→} catch (e) {
    45→    // e.lineNumber and e.columnNumber are set
    46→}
    47→""")
    48→```
    49→
    50→## Supported Features
    51→
    52→- **Core**: variables, operators, control flow, functions, closures
    53→- **Objects**: object literals, prototypes, getters/setters, JSON
    54→- **Arrays**: literals, methods (map, filter, reduce, etc.), typed arrays
    55→- **Functions**: arrow functions, rest/spread, default parameters
    56→- **Classes**: class syntax, inheritance, static methods
    57→- **Iteration**: for-of, iterators, generators
    58→- **Async**: Promises, async/await
    59→- **Regex**: Full regex support with capture groups, lookahead/lookbehind
    60→- **Error handling**: try/catch/finally with stack traces
    61→
    62→## Known Limitations
    63→
    64→See [open-problems.md](open-problems.md) for details on:
    65→- Deep nesting limits (parser uses recursion)
    66→- Some regex edge cases with optional lookahead captures
    67→- Error constructor location tracking
    68→
    69→## Development
    70→
    71→This project uses [uv](https://github.com/astral-sh/uv) for dependency management.
    72→
    73→```bash
    74→# Run tests
    75→uv run pytest
    76→```
    77→
    78→## License
    79→
    80→MIT License - see [LICENSE](LICENSE) file.
    81→
    82→Based on QuickJS by Fabrice Bellard and Charlie Gordon.
    83→

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