PseudoEngine 2

A pseudocode interpreter designed to be compatible with the Cambridge IGCSE and A level pseudocode syntax

The REPL

The REPL stands for Read Execute Print Loop and is an interface where pseudocode statements can be entered. The statement is immediately executed after it is entered and the result or potential errors are printed to the console to make it easy for debugging.

> 5 + 2 * 3
11
> LEFT("ABCD", 2)
"AB"
> x <- 1 / 0

Runtime Error in file <stdin>:
Division by 0

Traceback:
Program, line 1, column 9

Usage

Launching the REPL

Lanuch the program directly by double clicking the executable
OR
Run it in the terminal with no arguements

Running files in the REPL

The REPL can be used to run files using RUNFILE <file>.
For example, here is a simple hello world program stored in the file hello.pseudo

OUTPUT "Hello World!"

Run it with RUNFILE hello.pseudo
Example output:

> RUNFILE hello.pseudo
==> Running file 'hello.pseudo'
Hello World!

==> Program exited successfully
>

Tip: The program must be stored in the same folder as the executable or the full path of the program has to be mentioned when using RUNFILE

Running files from the terminal

Navigate to the executable and run it providing the path of the program file as an arguement similar to RUNFILE

Windows:

PseudoEngine2.exe <filepath>

Linux/Unix:

./PseudoEngine2 <filepath>

Make sure you replace PseudoEngine2 with the actual name of the executable or rename the executable

Examples

See examples

Building

Make sure cmake and a c++ compiler is installed, then clone the repository and inside its folder run the following commands:

cmake -B build -DCMAKE_BUILD_TYPE=Release
cmake --build build --config Release

The executable will be generated inside the build folder

Impossible to compile

Hi,

I tried to compile as indicated on both macOS Mojave (10.14) and Debian Bullseye (11).

I got error.

macOS

$ cmake -B build 
-- The C compiler identification is AppleClang 11.0.0.11000033
-- The CXX compiler identification is AppleClang 11.0.0.11000033
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/local/bin/ccache - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/local/bin/ccache - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/user1/PseudoEngine2/build
$ cmake --build build --config Release
[  1%] Building CXX object CMakeFiles/PseudoEngine2.dir/cmake_pch.hxx.pch
In file included from <built-in>:1:
In file included from /Users/user1/PseudoEngine2/build/CMakeFiles/PseudoEngine2.dir/cmake_pch.hxx:5:
/Users/user1/PseudoEngine2/src/pch.h:11:10: fatal error: 'concepts' file not found
#include <concepts>
         ^~~~~~~~~~
1 error generated.
gmake[2]: *** [CMakeFiles/PseudoEngine2.dir/build.make:77: CMakeFiles/PseudoEngine2.dir/cmake_pch.hxx.pch] Error 1
gmake[1]: *** [CMakeFiles/Makefile2:83: CMakeFiles/PseudoEngine2.dir/all] Error 2
gmake: *** [Makefile:146: all] Error 2

Debian:

$ cmake -B build -DCMAKE_BUILD_TYPE=Release
-- The C compiler identification is GNU 10.2.1
-- The CXX compiler identification is GNU 10.2.1
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done
-- Generating done
-- Build files have been written to: /home/laurent/PseudoEngine2/build
laurent@debian-graphique-demo:~/PseudoEngine2$ cmake --build build --config Release
Scanning dependencies of target PseudoEngine2
[  1%] Building CXX object CMakeFiles/PseudoEngine2.dir/cmake_pch.hxx.gch
[  3%] Building CXX object CMakeFiles/PseudoEngine2.dir/src/lexer/symbolLexer.cpp.o
In file included from /home/laurent/PseudoEngine2/src/psc/types/types.h:7,
                 from /home/laurent/PseudoEngine2/src/psc/variable.h:5,
                 from /home/laurent/PseudoEngine2/src/psc/scope/context.h:6,
                 from /home/laurent/PseudoEngine2/src/psc/error.h:5,
                 from /home/laurent/PseudoEngine2/src/lexer/lexer.h:6,
                 from /home/laurent/PseudoEngine2/src/lexer/symbolLexer.cpp:4:
/home/laurent/PseudoEngine2/src/psc/types/datatypes.h:10:15: error: expected nested-name-specifier before ‘enum’
   10 |         using enum Type;
      |               ^~~~
In file included from /home/laurent/PseudoEngine2/src/psc/variable.h:5,
                 from /home/laurent/PseudoEngine2/src/psc/scope/context.h:6,
                 from /home/laurent/PseudoEngine2/src/psc/error.h:5,
                 from /home/laurent/PseudoEngine2/src/lexer/lexer.h:6,
                 from /home/laurent/PseudoEngine2/src/lexer/symbolLexer.cpp:4:
/home/laurent/PseudoEngine2/src/psc/types/types.h:217:22: error: ‘year_month_day’ in namespace ‘std::chrono’ does not name a type
  217 |         std::chrono::year_month_day date;
      |                      ^~~~~~~~~~~~~~
/home/laurent/PseudoEngine2/src/psc/types/types.h:221:41: error: expected ‘)’ before ‘date’
  221 |         Date(std::chrono::year_month_day date);
      |             ~                           ^~~~~
      |                                         )
In file included from /home/laurent/PseudoEngine2/src/psc/scope/context.h:7,
                 from /home/laurent/PseudoEngine2/src/psc/error.h:5,
                 from /home/laurent/PseudoEngine2/src/lexer/lexer.h:6,
                 from /home/laurent/PseudoEngine2/src/lexer/symbolLexer.cpp:4:
/home/laurent/PseudoEngine2/src/psc/array.h:48:2: warning: extra ‘;’ [-Wpedantic]
   48 | };
      |  ^
In file included from /home/laurent/PseudoEngine2/src/psc/scope/context.h:8,
                 from /home/laurent/PseudoEngine2/src/psc/error.h:5,
                 from /home/laurent/PseudoEngine2/src/lexer/lexer.h:6,
                 from /home/laurent/PseudoEngine2/src/lexer/symbolLexer.cpp:4:
/home/laurent/PseudoEngine2/src/psc/procedure.h:54:2: warning: extra ‘;’ [-Wpedantic]
   54 | };
      |  ^
gmake[2]: *** [CMakeFiles/PseudoEngine2.dir/build.make:98 : CMakeFiles/PseudoEngine2.dir/src/lexer/symbolLexer.cpp.o] Erreur 1
gmake[1]: *** [CMakeFiles/Makefile2:95 : CMakeFiles/PseudoEngine2.dir/all] Erreur 2
gmake: *** [Makefile:160 : all] Erreur 2

What are the dependecies/libraries to be installed before compiling ?

singularityt3 / pseudoengine2 Goto Github PK

pseudoengine2's Introduction

PseudoEngine 2

The REPL

Usage

Launching the REPL

Running files in the REPL

Running files from the terminal

Examples

Building

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