vb6parse 1.2.4

vb6parse is a library for parsing and analyzing VB6 code, from projects, to controls, to modules, and forms.
Documentation 
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//! Example demonstrating various functionalities of the `SourceStream` API.
//! This example shows how to navigate, peek, and extract text from a VB6 source code stream.
//! It includes examples of case-sensitive and case-insensitive operations,
//! as well as line-based operations and error handling.
//!

use vb6parse::io::{Comparator, SourceStream};

// Sample VB6 code content
const VB6_CODE: &str = r#"Private Sub Form_Load()
    Dim x As Integer
    Dim message As String
    x = 42
    message = "Hello, World!"
    MsgBox message
End Sub

' This is a comment
Public Function Calculate(a As Integer, b As Integer) As Integer
    Calculate = a + b
End Function"#;

fn main() {
    // Create a SourceStream
    let mut stream = SourceStream::new("example.bas", VB6_CODE);

    println!("=== SourceStream Example ===");
    println!("File: {}", stream.file_name());
    println!("================================");
    println!();
    println!("{VB6_CODE}");
    println!();
    println!("================================");
    println!();
    println!("Content length: {} characters", stream.contents.len());
    println!("Initial offset: {}\n", stream.offset());
    println!();

    println!("=== Pattern-based Extraction Example ===");

    // Find and extract function definitions
    while !stream.is_empty() {
        // Look for "Function" keyword
        if stream
            .peek_text("Function", Comparator::CaseInsensitive)
            .is_some()
        {
            let function_start = stream.offset();

            // Take until the end of the line to get function signature
            if let Some((signature, _)) = stream.take_until_newline() {
                println!(
                    "Found function at offset {}: '{}'",
                    function_start,
                    signature.trim()
                );
            }
        } else {
            stream.forward(1);
        }
    }
}