REPL stands for \u201cRead Eval Print Loop”. Basically it’s the console<\/i> for evaluating Mwnci commands.<\/p>\n
The REPL reads input, sends it to the interpreter for evaluation, prints the result\/output of the interpreter and starts again. R<\/strong>ead, E<\/strong>val, P<\/strong>rint, L<\/strong>oop.<\/p>\n To start with the REPL, just type mwnci<\/i> and press enter<\/p>\n If all is well, then you will see something similar to the above, with the cursor waiting patiently at the end of mwnci><\/i><\/p>\n We can now enter our first command, so we’ll start with the standard “Hello World”<\/p>\n And majestically, another prompt appears. So where’s the output? The last return value is also shown. In this case it’s null<\/i> because the println<\/i> command doesn’t need a return response other than output the requested text.<\/p>\n The colon doesn’t need to be on a separate line.<\/p>\n Now we can show how the colon works after entering several mwnci<\/i> commands<\/p>\n There is command line history for the REPL, using emacs<\/i> bindings. So if you us the up arrow you can go back a line at a time. In this case a line is the succession of commands prior to the last colon. So if we press the up arrow you will see<\/p>\n To exit the REPL and get back to the command line<\/p>\n Or just type the keyboard combination REPL stands for \u201cRead Eval Print Loop”. Basically it’s the console for evaluating Mwnci commands. The REPL reads input, sends it to the interpreter for evaluation, prints the result\/output of the interpreter and starts again. Read, Eval, Print, Loop. To start with the REPL, just type mwnci and press enter nobby@reggie> mwnci Mwnci v0.2.13 (linux … Continue reading “The Mwnci REPL”<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-1032","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/monkey.ploogie.co.uk\/index.php\/wp-json\/wp\/v2\/pages\/1032","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/monkey.ploogie.co.uk\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/monkey.ploogie.co.uk\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/monkey.ploogie.co.uk\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/monkey.ploogie.co.uk\/index.php\/wp-json\/wp\/v2\/comments?post=1032"}],"version-history":[{"count":15,"href":"https:\/\/monkey.ploogie.co.uk\/index.php\/wp-json\/wp\/v2\/pages\/1032\/revisions"}],"predecessor-version":[{"id":1233,"href":"https:\/\/monkey.ploogie.co.uk\/index.php\/wp-json\/wp\/v2\/pages\/1032\/revisions\/1233"}],"wp:attachment":[{"href":"https:\/\/monkey.ploogie.co.uk\/index.php\/wp-json\/wp\/v2\/media?parent=1032"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\r\nnobby@reggie> mwnci\r\nMwnci v0.2.13 (linux arm64)\r\nmwnci>\r\n<\/pre>\n
\r\nMwnci v0.2.13 (linux arm64)\r\nmwnci> println(\"Hello World\")\r\nmwnci> \r\n<\/pre>\n
\nDue to a (very) bad decision by the author, a command or group of commands needs to be delimited by a colon (:) before anything is evaluated (executed).<\/p>\n\r\nMwnci 0.1.9.r14-20241208-042504\r\nmwnci> println(\"Hello World\")\r\nmwnci> :\r\nHello World\r\nnull\r\nmwnci>\r\n<\/pre>\n
\r\nMwnci 0.1.9.r14-20241208-042504\r\nmwnci> println(\"Hello World\")\r\nmwnci> :\r\nHello World\r\nnull\r\nmwnci> println(\"Hello World\"):\r\nHello World\r\nnull\r\n<\/pre>\n
\r\nmwnci> foreach n in 1..10 {\r\nmwnci> println(n)\r\nmwnci> }:\r\n1\r\n2\r\n3\r\n4\r\n5\r\n6\r\n7\r\n8\r\n9\r\n10\r\nnull\r\nmwnci>\r\n<\/pre>\n\r\nmwnci> foreach n in 1..10 {\r\nmwnci> println(n)\r\nmwnci> }:\r\n1\r\n2\r\n3\r\n4\r\n5\r\n6\r\n7\r\n8\r\n9\r\n10\r\nnull\r\nmwnci> foreach n in 1..10 { println(n) }\r\n<\/pre>\n\r\nmwnci> exit():\r\nnobby@reggie>\r\n<\/pre>\n
Ctrl-C<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"