This is the final alpha version of Sajilo.
‘Sajilo Programming Language’ is a basic programming language compiler written in Python and PLY. It offers Romanized Nepali syntax for the ease of use to the Nepali speakers.
1️⃣ PLY (Python Lex and Yacc)
2️⃣ Regex
1️⃣ Download or clone the files from repo.
git clone https://github.com/parz3val/sajilo-alpha
2️⃣ Change into the directory and install the requirements.
pip install -r requirements.txt
3️⃣ Run the sajilo code with sajilo.py file.
Usage : python sajilo.py 'name of file'
For example run:
python sajilo.py examples/sansaar.sajilo
1️⃣ Basic math operations
2️⃣ User defined variables
3️⃣ User defined functions
4️⃣ Function Calls
5️⃣ Standalone functions and no class overhead.
6️⃣ LR Parsing
✅ Basic Lexer
✅ Parser and Interpreter
✅ Lexing Error fixed for the conjoined syntax.
✅ Solve the lexing error with the joined key instances.
✅ Solved index out of range error in yacc file.
✅ Repl added and fixed issues with scope.
⭕ Build binary and installer for windows.
For example :
lekhasss "Hello World" is also parsed as right syntax
This issue is solved now!
lekha "Hello World" ;
The more sophisticated way to do this would be with user defined functions.
// This program takes input from user and returns message
// Functions are declared with keyword vidhi
// Functions don't have side affects, meaning they don't change the supplied value.
// They can be called with/without arguments
vidhi namaste(naam) {
lekha "Namaste, ", naam, "\n";
}
naam = padha("Hello, tapaiko naam k ho? \n");
namaste(naam);
- Statements are ended in semicolon.
Sajilo has dynamic types for the ease of use. Meaning you can define variables by assigning values to them. Sajilo supports all major data types like integers, floats, strings, and boolean values.
To type cast from string to integers or floats to integer. Use the function anka
For example
a = padha("Enter one number: ")
// a is casted from string to integer if possible.
// Error is raised if not.
a = anka(a);
To type cast from integers to floats or strings to floats (is possible.)
Use function dash
a = 5;
a = dash(a);
// a will be 5.0
To type cast from integers/floats/ or other objects to strings use functions sabda
a = 5;
a = sabda(a);
// a will be "a"
We can declare true and false for boolean values. I didn't translate the type to Nepali as a respect to George Boole.
a = true
Sajilo supports basic comparison between values and varialbes with operators and conditions. Supported conditionals are 'YEDI', 'NAVAYE', 'NAVAYE YEDI'
a = 5;
yedi a % 2 == 0 {
lekha "Even\n";
}
navaye {
lekha "Odd\n";
}
Sajilo supports loops and control flow with loop (functions similar to for loop.) and jaba (functions similar to while loop)
// A program to print numbers from 1 to 10.
i = 0;
loop i lai 1 -> 10 {
lekha i;
lekha "\n";
}
ans = "y";
jaba ans == "y" {
user_input = padha("Enter one number: \n");
yedi user_input == "n" {
ans = user_input;
}
sankhya = anka(user_input);
yedi sankhya < 0 {
lekha "Negative number";
}
navaye {
lekha "Positive Number";
}
Functions are treated as a small block of computations in Sajilo and and are declared with the keyword vidhi
Vidhi is Nepali means recepie for doing something, which is quite fitting name.
// a method to tell if a number is odd or even//
ans = "y";
jaba ans == "y" {
user_input = padha("\nEnter one number: \n");
yedi user_input == "n" {
ans = user_input;
}
sankhya = anka(user_input);
yedi sankhya % 2 == 0 {
lekha "Even number \n";
}
navaye {
lekha "Odd Number";
lekha "\n";
}
}
⭕ Unicode Transformations and encodings don't work.
Feel free to use and fork the repo as you wish. If you would like to participate in the project and translate the language keywords, error messages and programming style for your language or help me improve the code (there is also a private version of parsers being implemented in C and LLVM for code execution): feel free to open a PR request and I will add a branch for your language. All the code is subject to change however.
Check docs/References.csv for complete list of References, tutorials, and books.