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252 lines
6.5 KiB
252 lines
6.5 KiB
3 years ago
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<!doctype html>
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<title>CodeMirror: C-like mode</title>
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<meta charset="utf-8"/>
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<link rel=stylesheet href="../../doc/docs.css">
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<link rel="stylesheet" href="../../lib/codemirror.css">
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<script src="../../lib/codemirror.js"></script>
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<script src="../../addon/edit/matchbrackets.js"></script>
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<link rel="stylesheet" href="../../addon/hint/show-hint.css">
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<script src="../../addon/hint/show-hint.js"></script>
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<script src="clike.js"></script>
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<style>.CodeMirror {border: 2px inset #dee;}</style>
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<div id=nav>
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<a href="http://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png"></a>
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<ul>
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<li><a href="../../index.html">Home</a>
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<li><a href="../../doc/manual.html">Manual</a>
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<li><a href="https://github.com/codemirror/codemirror">Code</a>
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</ul>
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<ul>
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<li><a href="../index.html">Language modes</a>
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<li><a class=active href="#">C-like</a>
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</ul>
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</div>
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<article>
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<h2>C-like mode</h2>
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<div><textarea id="c-code">
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/* C demo code */
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#include <zmq.h>
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#include <pthread.h>
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#include <semaphore.h>
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#include <time.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <malloc.h>
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typedef struct {
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void* arg_socket;
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zmq_msg_t* arg_msg;
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char* arg_string;
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unsigned long arg_len;
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int arg_int, arg_command;
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int signal_fd;
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int pad;
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void* context;
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sem_t sem;
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} acl_zmq_context;
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#define p(X) (context->arg_##X)
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void* zmq_thread(void* context_pointer) {
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acl_zmq_context* context = (acl_zmq_context*)context_pointer;
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char ok = 'K', err = 'X';
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int res;
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while (1) {
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while ((res = sem_wait(&context->sem)) == EINTR);
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if (res) {write(context->signal_fd, &err, 1); goto cleanup;}
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switch(p(command)) {
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case 0: goto cleanup;
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case 1: p(socket) = zmq_socket(context->context, p(int)); break;
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case 2: p(int) = zmq_close(p(socket)); break;
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case 3: p(int) = zmq_bind(p(socket), p(string)); break;
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case 4: p(int) = zmq_connect(p(socket), p(string)); break;
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case 5: p(int) = zmq_getsockopt(p(socket), p(int), (void*)p(string), &p(len)); break;
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case 6: p(int) = zmq_setsockopt(p(socket), p(int), (void*)p(string), p(len)); break;
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case 7: p(int) = zmq_send(p(socket), p(msg), p(int)); break;
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case 8: p(int) = zmq_recv(p(socket), p(msg), p(int)); break;
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case 9: p(int) = zmq_poll(p(socket), p(int), p(len)); break;
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}
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p(command) = errno;
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write(context->signal_fd, &ok, 1);
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}
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cleanup:
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close(context->signal_fd);
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free(context_pointer);
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return 0;
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}
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void* zmq_thread_init(void* zmq_context, int signal_fd) {
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acl_zmq_context* context = malloc(sizeof(acl_zmq_context));
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pthread_t thread;
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context->context = zmq_context;
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context->signal_fd = signal_fd;
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sem_init(&context->sem, 1, 0);
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pthread_create(&thread, 0, &zmq_thread, context);
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pthread_detach(thread);
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return context;
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}
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</textarea></div>
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<h2>C++ example</h2>
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<div><textarea id="cpp-code">
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#include <iostream>
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#include "mystuff/util.h"
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namespace {
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enum Enum {
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VAL1, VAL2, VAL3
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};
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char32_t unicode_string = U"\U0010FFFF";
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string raw_string = R"delim(anything
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you
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want)delim";
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int Helper(const MyType& param) {
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return 0;
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}
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} // namespace
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class ForwardDec;
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template <class T, class V>
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class Class : public BaseClass {
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const MyType<T, V> member_;
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public:
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const MyType<T, V>& Method() const {
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return member_;
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}
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void Method2(MyType<T, V>* value);
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}
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template <class T, class V>
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void Class::Method2(MyType<T, V>* value) {
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std::out << 1 >> method();
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value->Method3(member_);
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member_ = value;
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}
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</textarea></div>
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<h2>Objective-C example</h2>
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<div><textarea id="objectivec-code">
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/*
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This is a longer comment
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That spans two lines
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*/
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#import <Test/Test.h>
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@implementation YourAppDelegate
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// This is a one-line comment
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- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{
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char myString[] = "This is a C character array";
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int test = 5;
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return YES;
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}
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</textarea></div>
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<h2>Java example</h2>
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<div><textarea id="java-code">
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import com.demo.util.MyType;
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import com.demo.util.MyInterface;
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public enum Enum {
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VAL1, VAL2, VAL3
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}
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public class Class<T, V> implements MyInterface {
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public static final MyType<T, V> member;
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private class InnerClass {
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public int zero() {
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return 0;
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}
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}
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@Override
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public MyType method() {
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return member;
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}
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public void method2(MyType<T, V> value) {
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method();
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value.method3();
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member = value;
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}
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}
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</textarea></div>
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<h2>Scala example</h2>
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<div><textarea id="scala-code">
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object FilterTest extends App {
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def filter(xs: List[Int], threshold: Int) = {
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def process(ys: List[Int]): List[Int] =
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if (ys.isEmpty) ys
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else if (ys.head < threshold) ys.head :: process(ys.tail)
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else process(ys.tail)
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process(xs)
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}
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println(filter(List(1, 9, 2, 8, 3, 7, 4), 5))
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}
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</textarea></div>
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<script>
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var cEditor = CodeMirror.fromTextArea(document.getElementById("c-code"), {
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lineNumbers: true,
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matchBrackets: true,
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mode: "text/x-csrc"
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});
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var cppEditor = CodeMirror.fromTextArea(document.getElementById("cpp-code"), {
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lineNumbers: true,
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matchBrackets: true,
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mode: "text/x-c++src"
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});
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var javaEditor = CodeMirror.fromTextArea(document.getElementById("java-code"), {
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lineNumbers: true,
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matchBrackets: true,
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mode: "text/x-java"
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});
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var objectivecEditor = CodeMirror.fromTextArea(document.getElementById("objectivec-code"), {
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lineNumbers: true,
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matchBrackets: true,
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mode: "text/x-objectivec"
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});
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var scalaEditor = CodeMirror.fromTextArea(document.getElementById("scala-code"), {
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lineNumbers: true,
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matchBrackets: true,
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mode: "text/x-scala"
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});
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var mac = CodeMirror.keyMap.default == CodeMirror.keyMap.macDefault;
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CodeMirror.keyMap.default[(mac ? "Cmd" : "Ctrl") + "-Space"] = "autocomplete";
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</script>
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<p>Simple mode that tries to handle C-like languages as well as it
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can. Takes two configuration parameters: <code>keywords</code>, an
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object whose property names are the keywords in the language,
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and <code>useCPP</code>, which determines whether C preprocessor
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directives are recognized.</p>
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<p><strong>MIME types defined:</strong> <code>text/x-csrc</code>
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(C), <code>text/x-c++src</code> (C++), <code>text/x-java</code>
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(Java), <code>text/x-csharp</code> (C#),
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<code>text/x-objectivec</code> (Objective-C),
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<code>text/x-scala</code> (Scala), <code>text/x-vertex</code>
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and <code>x-shader/x-fragment</code> (shader programs).</p>
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</article>
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