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shlcpp

shlcpp (ShellLite) is a programming language which has pseudocode like syntax (sort of like COBOL, and AppleScript)

Developer's Note:- Hi I am Shrey :), I started ShellLite (shlcpp) after looking at kids struggle (in grade 11th cs, we just started with python at that time) with learning syntax in school, and from there my journey began, learning about how programming languages work, etc. that lead to me writing the initial prototype of ShellLite written in python... Since then it always bugged me that the performance for the language was pretty crap, so almost immediately after i was happy with the prototype and wanted to do some proper testing and benchmarks i began the work on shlcpp... and here we are today :)

Some Simple Examples

Functions & I/O

to calculate_area(width, height)
    give width * height

can greet(name)
    show "Hello, " + name

say calculate_area(10, 5)
greet("Alice")

Conditionals & Loops

is_ready = false
unless is_ready
    say "Not ready"

repeat 3 times
    say "Looping..."

count = 0
until count == 3
    count += 1

Structures / Classes

thing Counter
    has value = 0

    can increment(amount)
        self.value = self.value + amount

c = make Counter(10)
c.increment(5)
say c.value

Building

Requires CMake 3.15+ and a C++17 compiler.

Windows:

.\compile_shl.bat

Linux / macOS:

./install.sh

Manual (CMake):

mkdir build && cd build
cmake .. -DCMAKE_BUILD_TYPE=Release
cmake --build . --config Release

Usage

# REPL
shlcpp

# Run script
shlcpp script.shl

# Run inline code
shlcpp -e "say 'Hello!'"

# Check syntax
shlcpp check script.shl

# Compile to bytecode (.shbc)
shlcpp -c script.shl script.shbc
shlcpp script.shbc

Tests

pytest tests/ -v

Documentation

License

GNU GPL v3 with Classpath Exception - see LICENSE.