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<title>CodeMirror: C-like mode</title>
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<li><a href="../index.html">Language modes</a>
<li><a class=active href="#">C-like</a>
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<article>
<h2>C-like mode</h2>
<div><textarea id="c-code">
/* C demo code */
#include <zmq.h>
#include <pthread.h>
#include <semaphore.h>
#include <time.h>
#include <stdio.h>
#include <fcntl.h>
#include <malloc.h>
typedef struct {
void* arg_socket;
zmq_msg_t* arg_msg;
char* arg_string;
unsigned long arg_len;
int arg_int, arg_command;
int signal_fd;
int pad;
void* context;
sem_t sem;
} acl_zmq_context;
#define p(X) (context->arg_##X)
void* zmq_thread(void* context_pointer) {
acl_zmq_context* context = (acl_zmq_context*)context_pointer;
char ok = 'K', err = 'X';
int res;
while (1) {
while ((res = sem_wait(&context->sem)) == EINTR);
if (res) {write(context->signal_fd, &err, 1); goto cleanup;}
switch(p(command)) {
case 0: goto cleanup;
case 1: p(socket) = zmq_socket(context->context, p(int)); break;
case 2: p(int) = zmq_close(p(socket)); break;
case 3: p(int) = zmq_bind(p(socket), p(string)); break;
case 4: p(int) = zmq_connect(p(socket), p(string)); break;
case 5: p(int) = zmq_getsockopt(p(socket), p(int), (void*)p(string), &p(len)); break;
case 6: p(int) = zmq_setsockopt(p(socket), p(int), (void*)p(string), p(len)); break;
case 7: p(int) = zmq_send(p(socket), p(msg), p(int)); break;
case 8: p(int) = zmq_recv(p(socket), p(msg), p(int)); break;
case 9: p(int) = zmq_poll(p(socket), p(int), p(len)); break;
}
p(command) = errno;
write(context->signal_fd, &ok, 1);
}
cleanup:
close(context->signal_fd);
free(context_pointer);
return 0;
}
void* zmq_thread_init(void* zmq_context, int signal_fd) {
acl_zmq_context* context = malloc(sizeof(acl_zmq_context));
pthread_t thread;
context->context = zmq_context;
context->signal_fd = signal_fd;
sem_init(&context->sem, 1, 0);
pthread_create(&thread, 0, &zmq_thread, context);
pthread_detach(thread);
return context;
}
</textarea></div>
<h2>C++ example</h2>
<div><textarea id="cpp-code">
#include <iostream>
#include "mystuff/util.h"
namespace {
enum Enum {
VAL1, VAL2, VAL3
};
char32_t unicode_string = U"\U0010FFFF";
string raw_string = R"delim(anything
you
want)delim";
int Helper(const MyType& param) {
return 0;
}
} // namespace
class ForwardDec;
template <class T, class V>
class Class : public BaseClass {
const MyType<T, V> member_;
public:
const MyType<T, V>& Method() const {
return member_;
}
void Method2(MyType<T, V>* value);
}
template <class T, class V>
void Class::Method2(MyType<T, V>* value) {
std::out << 1 >> method();
value->Method3(member_);
member_ = value;
}
</textarea></div>
<h2>Objective-C example</h2>
<div><textarea id="objectivec-code">
/*
This is a longer comment
That spans two lines
*/
#import <Test/Test.h>
@implementation YourAppDelegate
// This is a one-line comment
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{
char myString[] = "This is a C character array";
int test = 5;
return YES;
}
</textarea></div>
<h2>Java example</h2>
<div><textarea id="java-code">
import com.demo.util.MyType;
import com.demo.util.MyInterface;
public enum Enum {
VAL1, VAL2, VAL3
}
public class Class<T, V> implements MyInterface {
public static final MyType<T, V> member;
private class InnerClass {
public int zero() {
return 0;
}
}
@Override
public MyType method() {
return member;
}
public void method2(MyType<T, V> value) {
method();
value.method3();
member = value;
}
}
</textarea></div>
<h2>Scala example</h2>
<div><textarea id="scala-code">
object FilterTest extends App {
def filter(xs: List[Int], threshold: Int) = {
def process(ys: List[Int]): List[Int] =
if (ys.isEmpty) ys
else if (ys.head < threshold) ys.head :: process(ys.tail)
else process(ys.tail)
process(xs)
}
println(filter(List(1, 9, 2, 8, 3, 7, 4), 5))
}
</textarea></div>
<h2>Kotlin mode</h2>
<div><textarea id="kotlin-code">
package org.wasabi.http
import java.util.concurrent.Executors
import java.net.InetSocketAddress
import org.wasabi.app.AppConfiguration
import io.netty.bootstrap.ServerBootstrap
import io.netty.channel.nio.NioEventLoopGroup
import io.netty.channel.socket.nio.NioServerSocketChannel
import org.wasabi.app.AppServer
public class HttpServer(private val appServer: AppServer) {
val bootstrap: ServerBootstrap
val primaryGroup: NioEventLoopGroup
val workerGroup: NioEventLoopGroup
init {
// Define worker groups
primaryGroup = NioEventLoopGroup()
workerGroup = NioEventLoopGroup()
// Initialize bootstrap of server
bootstrap = ServerBootstrap()
bootstrap.group(primaryGroup, workerGroup)
bootstrap.channel(javaClass<NioServerSocketChannel>())
bootstrap.childHandler(NettyPipelineInitializer(appServer))
}
public fun start(wait: Boolean = true) {
val channel = bootstrap.bind(appServer.configuration.port)?.sync()?.channel()
if (wait) {
channel?.closeFuture()?.sync()
}
}
public fun stop() {
// Shutdown all event loops
primaryGroup.shutdownGracefully()
workerGroup.shutdownGracefully()
// Wait till all threads are terminated
primaryGroup.terminationFuture().sync()
workerGroup.terminationFuture().sync()
}
}
</textarea></div>
<h2>Ceylon mode</h2>
<div><textarea id="ceylon-code">
"Produces the [[stream|Iterable]] that results from repeated
application of the given [[function|next]] to the given
[[first]] element of the stream, until the function first
returns [[finished]]. If the given function never returns
`finished`, the resulting stream is infinite.
For example:
loop(0)(2.plus).takeWhile(10.largerThan)
produces the stream `{ 0, 2, 4, 6, 8 }`."
tagged("Streams")
shared {Element+} loop<Element>(
"The first element of the resulting stream."
Element first)(
"The function that produces the next element of the
stream, given the current element. The function may
return [[finished]] to indicate the end of the
stream."
Element|Finished next(Element element))
=> let (start = first)
object satisfies {Element+} {
first => start;
empty => false;
function nextElement(Element element)
=> next(element);
iterator()
=> object satisfies Iterator<Element> {
variable Element|Finished current = start;
shared actual Element|Finished next() {
if (!is Finished result = current) {
current = nextElement(result);
return result;
}
else {
return finished;
}
}
};
};
</textarea></div>
<script>
var cEditor = CodeMirror.fromTextArea(document.getElementById("c-code"), {
lineNumbers: true,
matchBrackets: true,
mode: "text/x-csrc"
});
var cppEditor = CodeMirror.fromTextArea(document.getElementById("cpp-code"), {
lineNumbers: true,
matchBrackets: true,
mode: "text/x-c++src"
});
var javaEditor = CodeMirror.fromTextArea(document.getElementById("java-code"), {
lineNumbers: true,
matchBrackets: true,
mode: "text/x-java"
});
var objectivecEditor = CodeMirror.fromTextArea(document.getElementById("objectivec-code"), {
lineNumbers: true,
matchBrackets: true,
mode: "text/x-objectivec"
});
var scalaEditor = CodeMirror.fromTextArea(document.getElementById("scala-code"), {
lineNumbers: true,
matchBrackets: true,
mode: "text/x-scala"
});
var kotlinEditor = CodeMirror.fromTextArea(document.getElementById("kotlin-code"), {
lineNumbers: true,
matchBrackets: true,
mode: "text/x-kotlin"
});
var ceylonEditor = CodeMirror.fromTextArea(document.getElementById("ceylon-code"), {
lineNumbers: true,
matchBrackets: true,
mode: "text/x-ceylon"
});
var mac = CodeMirror.keyMap.default == CodeMirror.keyMap.macDefault;
CodeMirror.keyMap.default[(mac ? "Cmd" : "Ctrl") + "-Space"] = "autocomplete";
</script>
<p>Simple mode that tries to handle C-like languages as well as it
can. Takes two configuration parameters: <code>keywords</code>, an
object whose property names are the keywords in the language,
and <code>useCPP</code>, which determines whether C preprocessor
directives are recognized.</p>
<p><strong>MIME types defined:</strong> <code>text/x-csrc</code>
(C), <code>text/x-c++src</code> (C++), <code>text/x-java</code>
(Java), <code>text/x-csharp</code> (C#),
<code>text/x-objectivec</code> (Objective-C),
<code>text/x-scala</code> (Scala), <code>text/x-vertex</code>
<code>x-shader/x-fragment</code> (shader programs),
<code>text/x-squirrel</code> (Squirrel) and
<code>text/x-ceylon</code> (Ceylon)</p>
</article>