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docs: Add DEVELOPMENT_LOG.md summarizing all features

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Alvin
2025-07-22 20:56:48 +02:00
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# Femcode Development Log
This log details the features implemented and significant changes made to the Femcode programming language.
## Implemented Features & Changes
### 1. Core Language Setup
- **Description:** Established the foundational lexical analysis, parsing, and interpretation framework for Femcode.
- **Files Modified:**
- `femcode/src/lexer.py`
- `femcode/src/parser.py`
- `femcode/src/interpreter.py`
### 2. Dictionaries and Property Access
- **Description:** Added support for creating dictionary (object) data structures and accessing their properties using dot notation.
- **Keywords/Syntax:** `{}` (dictionary literal), `.` (property access)
- **Files Modified:**
- `femcode/src/lexer.py`
- `femcode/src/parser.py`
- `femcode/src/interpreter.py`
- `femcode/examples/dictionaries.fem`
### 3. Input/Output (`ask` built-in function)
- **Description:** Introduced a built-in function `ask` to prompt the user for input, enhancing interactivity.
- **Keywords/Syntax:** `ask(prompt_string)`
- **Files Modified:**
- `femcode/src/interpreter.py`
- `femcode/examples/io.fem`
### 4. Built-in Functions (`len`, `type`)
- **Description:** Added utility built-in functions `len` for getting the length of strings/lists and `type` for determining the type of a value.
- **Keywords/Syntax:** `len(value)`, `type(value)`
- **Files Modified:**
- `femcode/src/interpreter.py`
- `femcode/examples/built_ins.fem`
### 5. `femterpreter` Wrapper Script
- **Description:** Created a standalone executable wrapper script to run Femcode programs directly from the command line, simplifying execution and removing the need to specify `python3 main.py`.
- **Files Modified:**
- `femcode/femterpreter` (new file)
- `femcode/src/main.py`
### 6. Enhanced Data Types
#### Floating-Point Numbers
- **Description:** Extended numerical support to include decimal values, allowing for more precise calculations.
- **Files Modified:**
- `femcode/src/lexer.py`
- `femcode/src/parser.py`
#### Null/None Type
- **Description:** Introduced a specific keyword to represent the absence of a value.
- **Keywords/Syntax:** `Ghosted`
- **Files Modified:**
- `femcode/src/lexer.py`
- `femcode/src/parser.py`
### 7. Advanced Control Flow
#### `for` Loops
- **Description:** Implemented iteration over sequences (lists and strings), enabling more flexible looping constructs.
- **Keywords/Syntax:** `Tomgirl` (for loop keyword)
- **Files Modified:**
- `femcode/src/lexer.py`
- `femcode/src/parser.py`
- `femcode/src/interpreter.py`
- `femcode/examples/loops_advanced.fem`
#### `break` and `continue` Statements
- **Description:** Added statements to provide more granular control over loop execution, allowing early exit or skipping iterations.
- **Keywords/Syntax:** `Break`, `Continue`
- **Files Modified:**
- `femcode/src/lexer.py`
- `femcode/src/parser.py`
- `femcode/src/interpreter.py`
- `femcode/examples/loops_advanced.fem`
### 8. Error Handling (`try-except`)
- **Description:** Implemented basic error handling mechanisms to gracefully manage runtime errors and prevent program crashes.
- **Keywords/Syntax:** `Twink` (try block), `Bimboy` (except block)
- **Files Modified:**
- `femcode/src/lexer.py`
- `femcode/src/parser.py`
- `femcode/src/interpreter.py`
- `femcode/examples/error_handling.fem`
### 9. Syntactic Sugar
#### Compound Assignment Operators
- **Description:** Added shorthand operators for common arithmetic assignments, improving code conciseness.
- **Keywords/Syntax:** `+=`, `-=`, `*=`, `/=`
- **Files Modified:**
- `femcode/src/lexer.py`
- `femcode/src/parser.py`
- `femcode/src/interpreter.py`
- `femcode/examples/syntactic_sugar.fem`
#### Increment/Decrement Operators
- **Description:** Introduced operators for easily increasing or decreasing numerical variables by one.
- **Keywords/Syntax:** `++`, `--`
- **Files Modified:**
- `femcode/src/lexer.py`
- `femcode/src/parser.py`
- `femcode/src/interpreter.py`
- `femcode/examples/syntactic_sugar.fem`
### 10. Documentation Updates
- **Description:** Continuously updated the `README.md` documentation to accurately reflect all new features, syntax, and usage instructions, including the `femterpreter` script.
- **Files Modified:**
- `femcode/docs/README.md`