first commit

2026-02-07 09:46:32 +08:00
commit 5fcd5dc646
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--- a/codemirror/mode/ocaml/index.html
+++ b/codemirror/mode/ocaml/index.html
@@ -0,0 +1,131 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>CodeMirror: OCaml mode</title>
+
+<link rel=stylesheet href=../../lib/codemirror.css>
+<link rel=stylesheet href=../../doc/docs.css>
+
+<style type=text/css>
+  .CodeMirror {border-top: 1px solid black; border-bottom: 1px solid black;}
+</style>
+
+<script src=../../lib/codemirror.js></script>
+<script src=../../lib/util/matchbrackets.js></script>
+<script src=ocaml.js></script>
+
+<h1>CodeMirror: OCaml mode</h1>
+
+<textarea id=code>
+(* Summing a list of integers *)
+let rec sum xs =
+  match xs with
+    | []       -&gt; 0
+    | x :: xs' -&gt; x + sum xs'
+
+(* Quicksort *)
+let rec qsort = function
+   | [] -&gt; []
+   | pivot :: rest -&gt;
+       let is_less x = x &lt; pivot in
+       let left, right = List.partition is_less rest in
+       qsort left @ [pivot] @ qsort right
+
+(* Fibonacci Sequence *)
+let rec fib_aux n a b =
+  match n with
+  | 0 -&gt; a
+  | _ -&gt; fib_aux (n - 1) (a + b) a
+let fib n = fib_aux n 0 1
+
+(* Birthday paradox *)
+let year_size = 365.
+
+let rec birthday_paradox prob people =
+    let prob' = (year_size -. float people) /. year_size *. prob  in
+    if prob' &lt; 0.5 then
+        Printf.printf "answer = %d\n" (people+1)
+    else
+        birthday_paradox prob' (people+1) ;;
+
+birthday_paradox 1.0 1
+
+(* Church numerals *)
+let zero f x = x
+let succ n f x = f (n f x)
+let one = succ zero
+let two = succ (succ zero)
+let add n1 n2 f x = n1 f (n2 f x)
+let to_string n = n (fun k -&gt; "S" ^ k) "0"
+let _ = to_string (add (succ two) two)
+
+(* Elementary functions *)
+let square x = x * x;;
+let rec fact x =
+  if x &lt;= 1 then 1 else x * fact (x - 1);;
+
+(* Automatic memory management *)
+let l = 1 :: 2 :: 3 :: [];;
+[1; 2; 3];;
+5 :: l;;
+
+(* Polymorphism: sorting lists *)
+let rec sort = function
+  | [] -&gt; []
+  | x :: l -&gt; insert x (sort l)
+
+and insert elem = function
+  | [] -&gt; [elem]
+  | x :: l -&gt; 
+      if elem &lt; x then elem :: x :: l else x :: insert elem l;;
+
+(* Imperative features *)
+let add_polynom p1 p2 =
+  let n1 = Array.length p1
+  and n2 = Array.length p2 in
+  let result = Array.create (max n1 n2) 0 in
+  for i = 0 to n1 - 1 do result.(i) &lt;- p1.(i) done;
+  for i = 0 to n2 - 1 do result.(i) &lt;- result.(i) + p2.(i) done;
+  result;;
+add_polynom [| 1; 2 |] [| 1; 2; 3 |];;
+
+(* We may redefine fact using a reference cell and a for loop *)
+let fact n =
+  let result = ref 1 in
+  for i = 2 to n do
+    result := i * !result
+   done;
+   !result;;
+fact 5;;
+
+(* Triangle (graphics) *)
+let () =
+  ignore( Glut.init Sys.argv );
+  Glut.initDisplayMode ~double_buffer:true ();
+  ignore (Glut.createWindow ~title:"OpenGL Demo");
+  let angle t = 10. *. t *. t in
+  let render () =
+    GlClear.clear [ `color ];
+    GlMat.load_identity ();
+    GlMat.rotate ~angle: (angle (Sys.time ())) ~z:1. ();
+    GlDraw.begins `triangles;
+    List.iter GlDraw.vertex2 [-1., -1.; 0., 1.; 1., -1.];
+    GlDraw.ends ();
+    Glut.swapBuffers () in
+  GlMat.mode `modelview;
+  Glut.displayFunc ~cb:render;
+  Glut.idleFunc ~cb:(Some Glut.postRedisplay);
+  Glut.mainLoop ()
+
+(* A Hundred Lines of Caml - http://caml.inria.fr/about/taste.en.html *)
+(* OCaml page on Wikipedia - http://en.wikipedia.org/wiki/OCaml *)
+</textarea>
+
+<script>
+  var editor = CodeMirror.fromTextArea(document.getElementById('code'), {
+    mode: 'ocaml',
+    lineNumbers: true,
+    matchBrackets: true
+  });
+</script>
+
+<p><strong>MIME types defined:</strong> <code>text/x-ocaml</code>.</p>
--- a/codemirror/mode/ocaml/ocaml.js
+++ b/codemirror/mode/ocaml/ocaml.js
@@ -0,0 +1,113 @@
+CodeMirror.defineMode('ocaml', function() {
+
+  var words = {
+    'true': 'atom',
+    'false': 'atom',
+    'let': 'keyword',
+    'rec': 'keyword',
+    'in': 'keyword',
+    'of': 'keyword',
+    'and': 'keyword',
+    'succ': 'keyword',
+    'if': 'keyword',
+    'then': 'keyword',
+    'else': 'keyword',
+    'for': 'keyword',
+    'to': 'keyword',
+    'while': 'keyword',
+    'do': 'keyword',
+    'done': 'keyword',
+    'fun': 'keyword',
+    'function': 'keyword',
+    'val': 'keyword',
+    'type': 'keyword',
+    'mutable': 'keyword',
+    'match': 'keyword',
+    'with': 'keyword',
+    'try': 'keyword',
+    'raise': 'keyword',
+    'begin': 'keyword',
+    'end': 'keyword',
+    'open': 'builtin',
+    'trace': 'builtin',
+    'ignore': 'builtin',
+    'exit': 'builtin',
+    'print_string': 'builtin',
+    'print_endline': 'builtin'
+  };
+
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+
+    if (ch === '"') {
+      state.tokenize = tokenString;
+      return state.tokenize(stream, state);
+    }
+    if (ch === '(') {
+      if (stream.eat('*')) {
+        state.commentLevel++;
+        state.tokenize = tokenComment;
+        return state.tokenize(stream, state);
+      }
+    }
+    if (ch === '~') {
+      stream.eatWhile(/\w/);
+      return 'variable-2';
+    }
+    if (ch === '`') {
+      stream.eatWhile(/\w/);
+      return 'quote';
+    }
+    if (/\d/.test(ch)) {
+      stream.eatWhile(/[\d]/);
+      if (stream.eat('.')) {
+        stream.eatWhile(/[\d]/);
+      }
+      return 'number';
+    }
+    if ( /[+\-*&%=<>!?|]/.test(ch)) {
+      return 'operator';
+    }
+    stream.eatWhile(/\w/);
+    var cur = stream.current();
+    return words[cur] || 'variable';
+  }
+
+  function tokenString(stream, state) {
+    var next, end = false, escaped = false;
+    while ((next = stream.next()) != null) {
+      if (next === '"' && !escaped) {
+        end = true;
+        break;
+      }
+      escaped = !escaped && next === '\\';
+    }
+    if (end && !escaped) {
+      state.tokenize = tokenBase;
+    }
+    return 'string';
+  };
+
+  function tokenComment(stream, state) {
+    var prev, next;
+    while(state.commentLevel > 0 && (next = stream.next()) != null) {
+      if (prev === '(' && next === '*') state.commentLevel++;
+      if (prev === '*' && next === ')') state.commentLevel--;
+      prev = next;
+    }
+    if (state.commentLevel <= 0) {
+      state.tokenize = tokenBase;
+    }
+    return 'comment';
+  }
+
+  return {
+    startState: function() {return {tokenize: tokenBase, commentLevel: 0};},
+    token: function(stream, state) {
+      if (stream.eatSpace()) return null;
+      return state.tokenize(stream, state);
+    }
+  };
+});
+  
+CodeMirror.defineMIME('text/x-ocaml', 'ocaml');