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mal/impls/matlab/step1_read_print.m
Joel Martin 8a19f60386 Move implementations into impls/ dir
- Reorder README to have implementation list after "learning tool"
  bullet.

- This also moves tests/ and libs/ into impls. It would be preferrable
  to have these directories at the top level.  However, this causes
  difficulties with the wasm implementations which need pre-open
  directories and have trouble with paths starting with "../../". So
  in lieu of that, symlink those directories to the top-level.

- Move the run_argv_test.sh script into the tests directory for
  general hygiene.
2020-02-10 23:50:16 -06:00

40 lines
772 B
Matlab

function step1_read_print(varargin), main(varargin), end
% read
function ret = READ(str)
ret = reader.read_str(str);
end
% eval
function ret = EVAL(ast, env)
ret = ast;
end
% print
function ret = PRINT(ast)
ret = printer.pr_str(ast, true);
end
% REPL
function ret = rep(str, env)
ret = PRINT(EVAL(READ(str), env));
end
function main(args)
%cleanObj = onCleanup(@() disp('*** here1 ***'));
while (true)
try
line = input('user> ', 's');
catch err
return
end
if strcmp(strtrim(line),''), continue, end
try
fprintf('%s\n', rep(line, ''));
catch err
fprintf('Error: %s\n', err.message);
type_utils.print_stack(err);
end
end
end