### Dockerfile Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/dockerfile/index.html

A sample Dockerfile demonstrating common instructions for setting up a Ghost blogging platform environment. This includes installing dependencies, downloading Ghost, and configuring the application.

```dockerfile
# Install Ghost blogging platform and run development environment 
# 
# VERSION 1.0.0
FROM ubuntu:12.10
MAINTAINER Amer Grgic "amer@livebyt.es"
WORKDIR /data/ghost
# Install dependencies for nginx installation
RUN apt-get update
RUN apt-get install -y python g++ make software-properties-common --force-yes
RUN add-apt-repository ppa:chris-lea/node.js
RUN apt-get update
# Install unzip
RUN apt-get install -y unzip
# Install curl
RUN apt-get install -y curl
# Install nodejs & npm
RUN apt-get install -y rlwrap
RUN apt-get install -y nodejs
# Download Ghost v0.4.1
RUN curl -L https://ghost.org/zip/ghost-latest.zip -o /tmp/ghost.zip
# Unzip Ghost zip to /data/ghost
RUN unzip -uo /tmp/ghost.zip -d /data/ghost
# Add custom config js to /data/ghost
ADD ./config.example.js /data/ghost/config.js
# Install Ghost with NPM
RUN cd /data/ghost/ && npm install --production
# Expose port 2368
EXPOSE 2368
# Run Ghost
CMD 
["npm","start"]

```

--------------------------------

### Test with OpenCms Setup

Source: https://github.com/alkacon/opencms-core/blob/master/test/README-Junit-Jupiter.md

Example of a test class that requires an OpenCms instance setup. Override $openCmsSetUp to configure the OpenCms environment.

```java
public class TestFoo extends OpenCmsTestRunner {

    @Override
    @BeforeAll
    public void $openCmsSetUp(TestInfo testInfo) {

        setupOpenCms(testInfo, "simpletest", "/");
    }

    @Test
    public void testSomething() throws Exception {

        CmsObject cms = getCmsObject();
        assertNotNull(cms);
    }
}
```

--------------------------------

### Prelude Installation in LiveScript

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/livescript/index.html

A meta-function to install the prelude into a target object.

```livescript
# meta
export installPrelude = !(target) ->
  unless target.prelude?isInstalled
    target <<< out$
    # using out$ generated by livescript
    target <<< target.prelude.isInstalled = true
export prelude = out$
```

--------------------------------

### Shell Script Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/shell/index.html

A shell script demonstrating repository cloning, HTTPS credential generation using OpenSSL, and starting a Node.js server. This is useful for setting up development environments.

```shell
#!/bin/bash
# clone the repository
git clone http://github.com/garden/tree
# generate HTTPS credentials
cd tree
openssl genrsa -aes256 -out https.key 1024
openssl req -new -nodes -key https.key -out https.csr
openssl x509 -req -days 365 -in https.csr -signkey https.key -out https.crt
cp https.key{,.orig}
openssl rsa -in https.key.orig -out https.key
# start the server in HTTPS mode
cd web
sudo node ../server.js 443 'yes' >> ../node.log &
# here is how to stop the server
for pid in `ps aux | grep 'node ../server.js' | awk '{print $2}'` ;
 do sudo kill -9 $pid 2> /dev/null
done
exit 0
```

--------------------------------

### ProtoBuf v2 Syntax Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/protobuf/index.html

An example demonstrating the syntax for Protocol Buffers version 2, including messages, fields, enums, and options.

```protobuf
package addressbook;

message Address {
  required string street = 1;
  required string postCode = 2;
}

message PhoneNumber {
  required string number = 1;
}

message Person {
  optional int32 id = 1;
  required string name = 2;
  required string surname = 3;
  optional Address address = 4;
  repeated PhoneNumber phoneNumbers = 5;
  optional uint32 age = 6;
  repeated uint32 favouriteNumbers = 7;
  optional string license = 8;

  enum Gender {
    MALE = 0;
    FEMALE = 1;
  }
  optional Gender gender = 9;
  optional fixed64 lastUpdate = 10;
  required bool deleted = 11 [default = false];
}
```

--------------------------------

### Install CodeMirror via npm

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/README.md

Install the CodeMirror library using npm. Ensure Node.js is installed.

```bash
npm install codemirror
```

--------------------------------

### SQL Syntax Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/sql/index.html

Demonstrates various SQL syntax elements including keywords, variables, aliases, data types, and comments. This example showcases the highlighting capabilities of the SQL mode.

```sql
-- SQL Mode for CodeMirror
SELECT SQL_NO_CACHE DISTINCT @var1 AS `val1`, @'val2', @global.`sql_mode`, 1.1 AS `float_val`, .14 AS `another_float`, 0.09e3 AS `int_with_esp`, 0xFA5 AS `hex`, x'fa5' AS `hex2`, 0b101 AS `bin`, b'101' AS `bin2`, DATE '1994-01-01' AS `sql_date`, { T "1994-01-01" } AS `odbc_date`, 'my string', _utf8'your string', N'her string', TRUE, FALSE, UNKNOWN FROM DUAL -- space needed after '--' 
/* multiline comment! */
LIMIT 1 OFFSET 0;
```

--------------------------------

### ProtoBuf v3 Syntax Example with Imports and Options

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/protobuf/index.html

An example showcasing Protocol Buffers version 3 syntax, featuring imports, options, messages, fields, enums, and timestamps.

```protobuf
syntax = "proto3";

package tutorial;

import "google/protobuf/timestamp.proto";

option java_package = "com.example.tutorial";
option java_outer_classname = "AddressBookProtos";
option csharp_namespace = "Google.Protobuf.Examples.AddressBook";

message Person {
  string name = 1;
  int32 id = 2; // Unique ID number for this person.
  string email = 3;

  enum PhoneType {
    MOBILE = 0;
    HOME = 1;
    WORK = 2;
  }

  message PhoneNumber {
    string number = 1;
    PhoneType type = 2;
  }

  repeated PhoneNumber phones = 4;
  google.protobuf.Timestamp last_updated = 5;
}

// Our address book file is just one of these.
message AddressBook {
  repeated Person people = 1;
}

service Test {
  rpc SayHello (HelloRequest) returns (HelloReply) {}
  rpc SayHelloAgain (HelloRequest) returns (HelloReply) {}
}
```

--------------------------------

### Factor Code Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/factor/index.html

A simple time server example written in the Factor programming language. It demonstrates basic Factor syntax for defining functions, using accessors, and setting up a threaded server.

```Factor
! Copyright (C) 2008 Slava Pestov. ! See http://factorcode.org/license.txt for BSD license. ! A simple time server USING: accessors calendar calendar.format io io.encodings.ascii io.servers kernel threads ;
IN: time-server
: handle-time-client ( -- ) now timestamp>rfc822 print ;
: <time-server> ( -- threaded-server ) ascii <threaded-server> "time-server" >>name 1234 >>insecure [ handle-time-client ] >>handler ;
: start-time-server ( -- ) <time-server> start-server drop ;
MAIN: start-time-server
```

--------------------------------

### Turtle Syntax Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/turtle/index.html

An example of RDF data written in Turtle syntax. This illustrates the structure and prefixes used in Turtle files.

```turtle
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix geo: <http://www.w3.org/2003/01/geo/wgs84_pos#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
<http://purl.org/net/bsletten> a foaf:Person;
  foaf:interest <http://www.w3.org/2000/01/sw/>;
  foaf:based_near [
    geo:lat "34.0736111" ;
    geo:lon "-118.3994444"
  ]
```

--------------------------------

### Tern Server Setup and Keybindings

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/demo/tern.html

Initializes the Tern server with ECMAScript definitions and configures CodeMirror keybindings for Tern features. This setup is essential for enabling code intelligence.

```javascript
function getURL(url, c) {
  var xhr = new XMLHttpRequest();
  xhr.open("get", url, true);
  xhr.send();
  xhr.onreadystatechange = function() {
    if (xhr.readyState != 4) return;
    if (xhr.status < 400) return c(null, xhr.responseText);
    var e = new Error(xhr.responseText || "No response");
    e.status = xhr.status;
    c(e);
  };
}

var server;
getURL("https://unpkg.com/tern/defs/ecmascript.json", function(err, code) {
  if (err) throw new Error("Request for ecmascript.json: " + err);
  server = new CodeMirror.TernServer({
    defs: [JSON.parse(code)]
  });
  editor.setOption("extraKeys", {
    "Ctrl-Space": function(cm) { server.complete(cm); },
    "Ctrl-I": function(cm) { server.showType(cm); },
    "Ctrl-O": function(cm) { server.showDocs(cm); },
    "Alt-.": function(cm) { server.jumpToDef(cm); },
    "Alt-,": function(cm) { server.jumpBack(cm); },
    "Ctrl-Q": function(cm) { server.rename(cm); },
    "Ctrl-.": function(cm) { server.selectName(cm); }
  });
  editor.on("cursorActivity", function(cm) {
    server.updateArgHints(cm);
  });
});

var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
  lineNumbers: true,
  mode: "javascript"
});
```

--------------------------------

### RPM Spec File Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/rpm/index.html

A complete example of an RPM spec file, demonstrating the structure and directives recognized by the RPM spec mode in CodeMirror.

```rpm-spec
# # spec file for package minidlna # # Copyright (c) 2011, Sascha Peilicke <saschpe@gmx.de> # # All modifications and additions to the file contributed by third parties # remain the property of their copyright owners, unless otherwise agreed # upon. The license for this file, and modifications and additions to the # file, is the same license as for the pristine package itself (unless the # license for the pristine package is not an Open Source License, in which # case the license is the MIT License). An "Open Source License" is a # license that conforms to the Open Source Definition (Version 1.9) # published by the Open Source Initiative. Name: libupnp6 Version: 1.6.13 Release: 0 Summary: Portable Universal Plug and Play (UPnP) SDK Group: System/Libraries License: BSD-3-Clause Url: http://sourceforge.net/projects/pupnp/ Source0: http://downloads.sourceforge.net/pupnp/libupnp-%{version}.tar.bz2 BuildRoot: %{\\_tmppath}/%{name}-%{version}-build %description The portable Universal Plug and Play (UPnP) SDK provides support for building UPnP-compliant control points, devices, and bridges on several operating systems. %package -n libupnp-devel Summary: Portable Universal Plug and Play (UPnP) SDK Group: Development/Libraries/C and C++ Provides: pkgconfig(libupnp) Requires: %{name} = %{version} %description -n libupnp-devel The portable Universal Plug and Play (UPnP) SDK provides support for building UPnP-compliant control points, devices, and bridges on several operating systems. %prep %setup -n libupnp-%{version} %build %configure --disable-static make %{\?_smp_mflags} %install %makeinstall find %{buildroot} -type f -name '\*.la' -exec rm -f {} \; %post -p /sbin/ldconfig %postun -p /sbin/ldconfig %files %defattr(-,root,root,-) %doc ChangeLog NEWS README TODO %{\\_libdir}/libixml.so.\* %{\\_libdir}/libthreadutil.so.\* %{\\_libdir}/libupnp.so.\* %files -n libupnp-devel %defattr(-,root,root,-) %{\\_libdir}/pkgconfig/libupnp.pc %{\\_libdir}/libixml.so %{\\_libdir}/libthreadutil.so %{\\_libdir}/libupnp.so %{\\_includedir}/upnp/ %changelog
```

--------------------------------

### YAML Example: Shopping List

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/yaml/index.html

Shows a simple YAML list format for a shopping list.

```yaml
# Shopping list
[milk, pumpkin pie, eggs, juice]
```

--------------------------------

### YAML Example: Favorite Movies

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/yaml/index.html

Demonstrates basic YAML list syntax for a collection of items.

```yaml
---
# Favorite movies
- Casablanca
- North by Northwest
- The Man Who Wasn't There
---
```

--------------------------------

### Section Header Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/rst/index.html

Shows how to create section headers by underlining the title with a punctuation character.

```rst
====================
This is a heading
====================
```

--------------------------------

### Get Current Token String

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/doc/manual.html

Use `current()` to get the string content between the start of the current token and the current stream position.

```javascript
stream.current() → string
```

--------------------------------

### Publish Setup Project

Source: https://github.com/alkacon/opencms-core/blob/master/test/data/scripts/script_publish.txt

This script switches to the '_setupProject', unlocks it, and then publishes it, waiting for the process to complete. Ensure the project name is correctly configured.

```bash
# Switch to the setup project
setCurrentProject "_setupProject"

# Publish the project
unlockCurrentProject
publishProjectAndWait
```

--------------------------------

### Test without OpenCms Setup

Source: https://github.com/alkacon/opencms-core/blob/master/test/README-Junit-Jupiter.md

Example of a test class that does not require an OpenCms instance. Avoid overriding $openCmsSetUp if no OpenCms setup is needed.

```java
public class TestFooUtil extends OpenCmsTestRunner {

    @Test
    public void testSomething() {

        assertEquals("foo", normalize(" foo "));
    }
}
```

--------------------------------

### CMakeLists.txt Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/cmake/index.html

A sample CMakeLists.txt file demonstrating common CMake commands and syntax. This is used to showcase the CMake mode's highlighting capabilities.

```cmake
# vim: syntax=cmake
if(NOT CMAKE_BUILD_TYPE)
  # default to Release build for GCC builds
  set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build, options are: None(CMAKE_CXX_FLAGS or CMAKE_C_FLAGS used) Debug Release RelWithDebInfo MinSizeRel." FORCE)
endif()
message(STATUS "cmake version ${CMAKE_VERSION}")

if(POLICY CMP0025)
  cmake_policy(SET CMP0025 OLD)
  # report Apple's Clang as just Clang
endif()

if(POLICY CMP0042)
  cmake_policy(SET CMP0042 NEW)
  # MACOSX_RPATH
endif()

project (x265)
cmake_minimum_required (VERSION 2.8.8)

# OBJECT libraries require 2.8.8
include(CheckIncludeFiles)
include(CheckFunctionExists)
include(CheckSymbolExists)
include(CheckCXXCompilerFlag)

# X265_BUILD must be incremented each time the public API is changed
set(X265_BUILD 48)
configure_file("${PROJECT_SOURCE_DIR}/x265.def.in" "${PROJECT_BINARY_DIR}/x265.def")
configure_file("${PROJECT_SOURCE_DIR}/x265_config.h.in" "${PROJECT_BINARY_DIR}/x265_config.h")

SET(CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake" "${CMAKE_MODULE_PATH}")

# System architecture detection
string(TOLOWER "${CMAKE_SYSTEM_PROCESSOR}" SYSPROC)
set(X86_ALIASES x86 i386 i686 x86_64 amd64)
list(FIND X86_ALIASES "${SYSPROC}" X86MATCH)

if("${SYSPROC}" STREQUAL "" OR X86MATCH GREATER "-1")
  message(STATUS "Detected x86 target processor")
  set(X86 1)
  add_definitions(-DX265_ARCH_X86=1)
  if("${CMAKE_SIZEOF_VOID_P}" MATCHES 8)
    set(X64 1)
    add_definitions(-DX86_64=1)
  endif()
elseif(${SYSPROC} STREQUAL "armv6l")
  message(STATUS "Detected ARM target processor")
  set(ARM 1)
  add_definitions(-DX265_ARCH_ARM=1 -DHAVE_ARMV6=1)
else()
  message(STATUS "CMAKE_SYSTEM_PROCESSOR value \"${CMAKE_SYSTEM_PROCESSOR}\" is unknown")
  message(STATUS "Please add this value near ${CMAKE_CURRENT_LIST_FILE}:${CMAKE_CURRENT_LIST_LINE}")
endif()

if(UNIX)
  list(APPEND PLATFORM_LIBS pthread)
  find_library(LIBRT rt)
  if(LIBRT)
    list(APPEND PLATFORM_LIBS rt)
  endif()

  find_package(Numa)
  if(NUMA_FOUND)
    list(APPEND CMAKE_REQUIRED_LIBRARIES ${NUMA_LIBRARY})
    check_symbol_exists(numa_node_of_cpu numa.h NUMA_V2)
    if(NUMA_V2)
      add_definitions(-DHAVE_LIBNUMA)
      message(STATUS "libnuma found, building with support for NUMA nodes")
      list(APPEND PLATFORM_LIBS ${NUMA_LIBRARY})
      link_directories(${NUMA_LIBRARY_DIR})
      include_directories(${NUMA_INCLUDE_DIR})
    endif()
  endif()
  mark_as_advanced(LIBRT NUMA_FOUND)
endif(UNIX)

if(X64 AND NOT WIN32)
  option(ENABLE_PIC "Enable Position Independent Code" ON)
else()
  option(ENABLE_PIC "Enable Position Independent Code" OFF)
endif(X64 AND NOT WIN32)

# Compiler detection
if(CMAKE_GENERATOR STREQUAL "Xcode")
  set(XCODE 1)
endif()

if (APPLE)
  add_definitions(-DMACOS)
endif()

```

--------------------------------

### Create Temporary Project

Source: https://github.com/alkacon/opencms-core/blob/master/test/data/scripts/script_base.txt

Creates a temporary project for setup purposes. This is a preliminary step before configuring the project.

```bash
createTempfileProject
```

--------------------------------

### Get Viewport Range

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/doc/manual.html

Returns the start (inclusive) and end (exclusive) of the currently rendered portion of the document.

```javascript
cm.getViewport() → {from: number, to: number}
```

--------------------------------

### Pascal Syntax Examples

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/pascal/index.html

Demonstrates basic Pascal syntax including loops, conditionals, and case statements.

```pascal
(* Example Pascal code *)
while a <> b do writeln('Waiting');
if a > b then writeln('Condition met') else writeln('Condition not met');
for i := 1 to 10 do writeln('Iteration: ', i:1);
repeat a := a + 1 until a = 10;
case i of
  0: write('zero');
  1: write('one');
  2: write('two')
end;
```

--------------------------------

### Get Current Token Column

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/doc/manual.html

Use `column()` to retrieve the starting column of the current token, accounting for tab characters.

```javascript
stream.column() → integer
```

--------------------------------

### Explicit Markup Block Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/rst/index.html

Demonstrates the basic structure of an explicit markup block, which starts with '.. ' and is terminated by the next paragraph at the same indentation level.

```rst
.. _directives:

Directives ----------
A directive (:duref:`ref <directives>`) is a generic block of explicit markup.
```

--------------------------------

### Objective-C Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/clike/index.html

Shows Objective-C syntax including multi-line comments, framework imports, enums, class extensions, properties, and method implementations. Requires 'MyClass.h', 'AFramework', and 'BFrameworkModule'.

```objectivec
/* This is a longer comment That spans two lines */ #import "MyClass.h" #import <AFramework/AFramework.h> @import BFrameworkModule; NS_ENUM(SomeValues) { aValue = 1; }; // A Class Extension with some properties @interface MyClass ()<AProtocol> @property(atomic, readwrite, assign) NSInteger anInt; @property(nonatomic, strong, nullable) NSString *aString; @end @implementation YourAppDelegate - (instancetype)initWithString:(NSString *)aStringVar { if ((self = [super init])) { aString = aStringVar; } return self; } - (BOOL)doSomething:(float)progress { NSString *myString = @"This is a ObjC string %f "; myString = [[NSString stringWithFormat:myString, progress] stringByAppendingString:self.aString]; return myString.length > 100 ? NO : YES; } @end
```

--------------------------------

### Stylus Syntax Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/stylus/index.html

Demonstrates basic Stylus syntax including variables, nested rules, and mixins.

```stylus
/* Stylus mode */
#id, .class, article
  font-family Arial, sans-serif

#id, .class, article {
  font-family: Arial, sans-serif;
}

// Variables
font-size-base = 16px
line-height-base = 1.5
font-family-base = "Helvetica Neue", Helvetica, Arial, sans-serif
text-color = lighten(#000, 20%)

body {
  font: 400 16px/1.5 "Helvetica Neue", Helvetica, Arial, sans-serif;
  color: #333;
}

// Variables
link-color = darken(#428bca, 6.5%)
link-hover-color = darken(link-color, 15%)
link-decoration = none
link-hover-decoration = false

// Mixin
tab-focus() {
  outline: thin dotted;
  outline: 5px auto -webkit-focus-ring-color;
  outline-offset: -2px;
}

a {
  color: link-color
  if link-decoration {
    text-decoration: link-decoration
  }
  &:hover,
  &:focus {
    color: link-hover-color
  }
  if link-hover-decoration {
    text-decoration: link-hover-decoration
  }
  &:focus {
    tab-focus()
  }
}

a {
  color: #3782c4;
  text-decoration: none;
}

a:hover, a:focus {
  color: #2f6ea7;
}

a:focus {
  outline: thin dotted;
  outline: 5px auto -webkit-focus-ring-color;
  outline-offset: -2px;
}
```

--------------------------------

### Verify Build Configuration

Source: https://github.com/alkacon/opencms-core/blob/master/GRADLE-MIGRATION.md

Run the help task in a clean environment to ensure the build configures successfully after updating plugin resolution settings.

```bash
./gradlew help
```

--------------------------------

### Oz Code Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/oz/index.html

An example of Oz code demonstrating function declarations, recursion, and threading.

```oz
declare fun {Ints N Max} if N == Max then nil else {Delay 1000} N|{Ints N+1 Max} end end fun {Sum S Stream} case Stream of nil then S
[] H|T then S|{Sum H+S T}
end
end
local X Y in
  thread X = {Ints 0 1000}
  end
  thread Y = {Sum 0 X}
  end
  {Browse Y}
end
```

--------------------------------

### C Language Example with ZMQ

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/clike/index.html

Demonstrates C code using the ZeroMQ library for inter-process communication, including thread creation and message handling. Requires ZeroMQ and pthreads.

```c
/* 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; }
```

--------------------------------

### XML/HTML Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/xml/index.html

An example of XML/HTML content that can be edited with the CodeMirror XML mode. The indentation attempts to be intuitive.

```html
<html style="color: green"> <!-- this is a comment --> <head> <title>HTML Example</title> </head> <body> The indentation tries to be <em>somewhat &quot;do what I mean&quot;</em>... but might not match your style. </body> </html>
```

--------------------------------

### Forth Insertion Sort Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/forth/index.html

An example of an insertion sort algorithm implemented in Forth, demonstrating Forth syntax.

```text/x-forth
: cell- 1 cells - ; : insert ( start end -- start ) dup @ >r ( r: v ) begin 2dup < while r@ over cell- @ < while cell- dup @ over cell+ ! repeat then r> swap ! ; : sort ( array len -- ) 1 ?do dup i cells + insert loop drop ;
```

--------------------------------

### D Compile-Time String Formatting Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/d/index.html

Demonstrates using the `Format` template to create strings at compile time, similar to `string.format`. This is useful for generating formatted strings without runtime overhead.

```d
import std.metastrings;
import std.stdio;

void main() {
    string s = Format!("Arg %s = %s", "foo", 27);
    writefln(s); // "Arg foo = 27"
}
```

--------------------------------

### Twig Template Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/twig/index.html

A basic example of a Twig template demonstrating inheritance, blocks, loops with conditions, and variable assignment.

```twig
{% extends "layout.twig" %} {% block title %}CodeMirror: Twig mode{% endblock %} {# this is a comment #} {% block content %} {% for foo in bar if foo.baz is divisible by(3) %} Hello {{ foo.world }} {% else %} {% set msg = "Result not found" %} {% include "empty.twig" with { message: msg } %} {% endfor %} {% endblock %}
```

--------------------------------

### N-Triples Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/ntriples/index.html

Example of N-Triples syntax, including URIs, literals, and blank nodes. This format is well-supported by the N-Triples mode.

```text
<http://Sub1> <http://pred1> <http://obj> . <http://Sub2> <http://pred2#an2> "literal 1" . <http://Sub3#an3> <http://pred3> 
_:bnode3 . 
_:bnode4 <http://pred4> "literal 2"@lang . 
_:bnode5 <http://pred5> "literal 3"^^<http://type> .
```

--------------------------------

### JSON-LD Example Data

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/javascript/json-ld.html

An example of JSON-LD data structure, including context, name, description, image, and geographical coordinates.

```json
{ "@context": { "name": "http://schema.org/name", "description": "http://schema.org/description", "image": { "@id": "http://schema.org/image", "@type": "@id" }, "geo": "http://schema.org/geo", "latitude": { "@id": "http://schema.org/latitude", "@type": "xsd:float" }, "longitude": { "@id": "http://schema.org/longitude", "@type": "xsd:float" }, "xsd": "http://www.w3.org/2001/XMLSchema#" }, "name": "The Empire State Building", "description": "The Empire State Building is a 102-story landmark in New York City.", "image": "http://www.civil.usherbrooke.ca/cours/gci215a/empire-state-building.jpg", "geo": { "latitude": "40.75", "longitude": "73.98" } }
```

--------------------------------

### Jinja2 Syntax Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/jinja2/index.html

Demonstrates various Jinja2 template constructs including comments, loops, conditionals, variable access, function calls, includes, and variable assignments.

```jinja2
{# this is a comment #} {%- for item in li -%} <li>{{ item.label }}</li> {% endfor -%} {{ item.sand == true and item.keyword == false ? 1 : 0 }} {{ app.get(55, 1.2, true) }} {% if app.get('_route') == ('_home') %}home{% endif %} {% if app.session.flashbag.has('message') %} {% for message in app.session.flashbag.get('message') %} {{ message.content }} {% endfor %} {% endif %} {{ path('_home', {'section': app.request.get('section')}) }} {{ path('_home', { 'section': app.request.get('section'), 'boolean': true, 'number': 55.33 }) }} {% include ('test.incl.html.twig') %} # for item in seq: <li>{{ item }} </li> ## this comment is ignored # endfor # set text = "Multiline text" # for href, caption in [('index.html', 'Index'), ('about.html', 'About')]: <li><a href="{{ href }}">{{ caption }}</a></li> # endfor
```

--------------------------------

### HTTP Request Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/http/index.html

This snippet shows an example of an HTTP request with headers and a body, as highlighted by the CodeMirror HTTP mode.

```http
POST /somewhere HTTP/1.1
Host: example.com
If-Modified-Since: Sat, 29 Oct 1994 19:43:31 GMT
Content-Type: application/x-www-form-urlencoded; charset=utf-8
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/536.11 (KHTML, like Gecko) Ubuntu/12.04 Chromium/20.0.1132.47 Chrome/20.0.1132.47 Safari/536.11

This is the request body!
```

--------------------------------

### OCaml: Triangle graphics with GLUT

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/mllike/index.html

Initializes GLUT, sets up display mode, creates a window, and renders a rotating triangle.

```ocaml
let () = ignore( Glut.init Sys.argv )
Glut.initDisplayMode ~double_buffer:true ()
ignore (Glut.createWindow ~title:"OpenGL Demo")

let angle t = 10. *. t *. t

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 ()

GlMat.mode `modelview
Glut.displayFunc ~cb:render
Glut.idleFunc ~cb:(Some Glut.postRedisplay)
Glut.mainLoop ()
```

--------------------------------

### Get Repository and Login Session

Source: https://github.com/alkacon/opencms-core/blob/master/src/org/opencms/repository/package.html

Obtain a configured repository instance by name and log in to get a session for VFS operations.

```Java
I_CmsRepository repository = OpenCms.getRepositoryManager().getRepository(repository_name);
I_CmsRepositorySession session = repository.login(username, password);
```

--------------------------------

### Basic R Syntax and Output

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/r/index.html

Demonstrates basic R syntax for creating lists, printing objects, and accessing elements. Shows how to use sprintf for formatted output.

```r
X <- list(height = 5.4, weight = 54) 
cat("Printing objects: "); print(X) 
print("Accessing individual elements:") 
cat(sprintf("Your height is %s and your weight is %s\n", X$height, X$weight))
```

--------------------------------

### Example Solr HTTP Response

Source: https://github.com/alkacon/opencms-core/blob/master/src/org/opencms/search/solr/README.md

An example of the XML response received when querying a Solr server directly via its HTTP interface.

```xml
<response>
    <lst name="responseHeader">
      <int name="status">0</int>
      <int name="QTime">32</int>
      <lst name="params">
        <str name="q">*:*</str>
        <int name="rows">2</int>
        <long name="start">0</long>
     </lst>
     <result name="response" numFound="139" start="0">
       <doc>...</doc>
       <doc>...</doc>
     </result>
  </response>
```

--------------------------------

### Swift Protocol and Struct Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/swift/index.html

Illustrates Swift protocol and struct definitions for header views and their usage.

```swift
protocol HeaderViewProtocol { func setTitle(\_ string: String) }
struct AnyHeaderView {
    let view: UIView
    let headerView: HeaderViewProtocol
    init<T: UIView>(view: T) where T: HeaderViewProtocol {
        self.view = view
        self.headerView = view
    }
}
let header = AnyHeaderView(view: myView)
header.headerView.setTitle("hi")
struct HeaderView {
    let view: UIView
    let setTitle: (String) -> ()
}
var label = UILabel()
let header = HeaderView(view: label) { str in label.text = str }
header.setTitle("hello")
```

--------------------------------

### VHDL Example Code

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/vhdl/index.html

A VHDL code example demonstrating entity declaration, architecture, component instantiation, and a stimulus process for testing.

```vhdl
LIBRARY ieee;
USE ieee.std_logic_1164.ALL;
USE ieee.numeric_std.ALL;

ENTITY tb IS
END tb;

ARCHITECTURE behavior OF tb IS
  --Inputs
  signal a : unsigned(2 downto 0) := (others => '0');
  signal b : unsigned(2 downto 0) := (others => '0');

  --Outputs
  signal a_eq_b : std_logic;
  signal a_le_b : std_logic;
  signal a_gt_b : std_logic;
  signal i,j : integer;
BEGIN

  -- Instantiate the Unit Under Test (UUT)
  uut: entity work.comparator
    PORT MAP (
      a => a,
      b => b,
      a_eq_b => a_eq_b,
      a_le_b => a_le_b,
      a_gt_b => a_gt_b
    );

  -- Stimulus process
  stim_proc: process
  begin
    for i in 0 to 8 loop
      for j in 0 to 8 loop
        a <= to_unsigned(i,3); --integer to unsigned type conversion
        b <= to_unsigned(j,3);
        wait for 10 ns;
      end loop;
    end loop;
  end process;

END;
```

--------------------------------

### GFM Task List Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/gfm/index.html

Shows how to create incomplete and completed task list items in GFM.

```gfm
- [ ] Incomplete task list item
- [x] **Completed** task list item
```

--------------------------------

### Solr Query Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/solr/index.html

An example of a Solr query string. This is not executable code but demonstrates the syntax the Solr mode is designed to highlight.

```solr
author:Camus title:"The Rebel" and author:Camus philosophy:Existentialism -author:Kierkegaard hardToSpell:Dostoevsky~ published:[194* TO 1960] and author:(Sartre or "Simone de Beauvoir")
```

--------------------------------

### N-Quads Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/ntriples/index.html

Example of N-Quads syntax, which extends N-Triples by adding a graph identifier. The N-Triples mode also handles this format.

```text
<http://Sub1> <http://pred1> <http://obj> <http://graph3> . 
<http://Sub2> <http://pred2#an2> "literal 1" <http://graph2> . 
<http://Sub3#an3> <http://pred3> 
_:bnode3 <http://graph2> . 
_:bnode4 <http://pred4> "literal 2"@lang <http://graph2> . # if a graph label 
_:bnode5 <http://pred5> "literal 3"^^<http://type> .
```

--------------------------------

### Gas Syntax Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/gas/index.html

Demonstrates the syntax highlighting for Gas (GNU Assembler) including multi-line and single-line comments, directives, and labels.

```gas
.syntax unified
.global main
/*
 * A
 * multi-line
 * comment.
 */
@ A single line comment.
main:
  push {sp, lr}
  ldr r0, =message
  bl puts
  mov r0, #0
  pop {sp, pc}
message:
  .asciz "Hello world!<br />"

```

--------------------------------

### Initialize CodeMirror with Swift Mode

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/swift/index.html

Demonstrates how to initialize a CodeMirror editor instance with the Swift mode enabled.

```javascript
var editor = CodeMirror.fromTextArea(document.getElementById("code"), { lineNumbers: true, matchBrackets: true, mode: "text/x-swift" });
```

--------------------------------

### DTD Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/dtd/index.html

An example of a Document Type Definition (DTD) used for defining XML document structures. This can be used with the DTD mode in CodeMirror.

```dtd
<?xml version="1.0" encoding="UTF-8"?>
<!ATTLIST title xmlns CDATA #FIXED "http://docbook.org/ns/docbook" role CDATA #IMPLIED %db.common.attributes; %db.common.linking.attributes; >
<!-- Try: http://docbook.org/xml/5.0/dtd/docbook.dtd -->
<!DOCTYPE xsl:stylesheet [
<!ENTITY nbsp "&#160;">
<!ENTITY copy "&#169;">
<!ENTITY reg "&#174;">
<!ENTITY trade "&#8482;">
<!ENTITY mdash "&#8212;">
<!ENTITY ldquo "&#8220;">
<!ENTITY rdquo "&#8221;">
<!ENTITY pound "&#163;">
<!ENTITY yen "&#165;">
<!ENTITY euro "&#8364;">
<!ENTITY mathml "http://www.w3.org/1998/Math/MathML">
]>
<!ELEMENT title (#PCDATA|inlinemediaobject|remark|superscript|subscript|xref|link|olink|anchor|biblioref|alt|annotation|indexterm|abbrev|acronym|date|emphasis|footnote|footnoteref|foreignphrase|phrase|quote|wordasword|firstterm|glossterm|coref|trademark|productnumber|productname|database|application|hardware|citation|citerefentry|citetitle|citebiblioid|author|person|personname|org|orgname|editor|jobtitle|replaceable|package|parameter|termdef|nonterminal|systemitem|option|optional|property|inlineequation|tag|markup|token|symbol|literal|code|constant|email|uri|guiicon|guibutton|guimenuitem|guimenu|guisubmenu|guilabel|menuchoice|mousebutton|keycombo|keycap|keycode|keysym|shortcut|accel|prompt|envar|filename|command|computeroutput|userinput|function|varname|returnvalue|type|classname|exceptionname|interfacename|methodname|modifier|initializer|ooclass|ooexception|oointerface|errorcode|errortext|errorname|errortype)*>
<!ENTITY % db.common.attributes " xml:id ID #IMPLIED version CDATA #IMPLIED xml:lang CDATA #IMPLIED xml:base CDATA #IMPLIED remap CDATA #IMPLIED xreflabel CDATA #IMPLIED revisionflag (changed|added|deleted|off) #IMPLIED dir (ltr|rtl|lro|rlo) #IMPLIED arch CDATA #IMPLIED audience CDATA #IMPLIED condition CDATA #IMPLIED conformance CDATA #IMPLIED os CDATA #IMPLIED revision CDATA #IMPLIED security CDATA #IMPLIED userlevel CDATA #IMPLIED vendor CDATA #IMPLIED wordsize CDATA #IMPLIED annotations CDATA #IMPLIED ">

```

--------------------------------

### WebAssembly Syntax Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/wast/index.html

Demonstrates the syntax for a WebAssembly module with exported functions for factorial and addition. This is used to showcase the WebAssembly mode in CodeMirror.

```wast
/* Example WebAssembly */ (module $foo (export "fac" (func $fac)) (export "plus" (func $plus)) (func $fac (type $t0) (param $p0 i64) (result i64) (if $I0 (result i64) (i64.lt_s (local.get $p0) (i64.const 1)) (then (i64.const 1)) (else (i64.mul (local.get $p0) (call $fac (i64.sub (local.get $p0) (i64.const 1))))))) (func $plus (param $x i32) (param $y i32) (result i32) (i32.add (local.get $x) (local.get $y))))
```

--------------------------------

### Elm Code Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/elm/index.html

A basic example of Elm code demonstrating the use of Color, Graphics, and Time modules for creating a clock visualization.

```elm
import Color exposing (..)
import Graphics.Collage exposing (..)
import Graphics.Element exposing (..)
import Time exposing (..)

main = Signal.map clock (every second)

clock t =
    collage 400 400
        [
            filled lightGrey (ngon 12 110),
            outlined (solid grey) (ngon 12 110),
            hand orange 100 t,
            hand charcoal 100 (t/60),
            hand charcoal 60 (t/720)
        ]

hand clr len time =
    let
        angle = degrees (90 - 6 * inSeconds time)
    in
        segment (0,0) (fromPolar (len,angle))
            |> traced (solid clr)
```

--------------------------------

### CodeMirror Initialization for Python Mode

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/python/index.html

Demonstrates how to initialize CodeMirror with the Python mode, specifying version and other configuration options.

```javascript
var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
    mode: {name: "python", version: 3, singleLineStringErrors: false},
    lineNumbers: true,
    indentUnit: 4,
    matchBrackets: true
});
```

--------------------------------

### ECL Syntax Highlighting Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/ecl/index.html

Demonstrates ECL syntax highlighting with single-line and multi-line comments, import statements, record definitions, dataset creation, and output.

```ecl
/* sample useless code to demonstrate ecl syntax highlighting this is a multiline comment! */ // this is a singleline comment!
import ut;
r := record
    string22 s1 := '123';
    integer4 i1 := 123;
end;

#option('tmp', true);
d := dataset('tmp::qb', r, thor);
output(d);
```

--------------------------------

### Get Token Type at Position

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/doc/manual.html

A performance-optimized method to get only the type string of the token at a given position. Returns null for unstyled tokens.

```javascript
cm.getTokenTypeAt(pos)
```

--------------------------------

### Puppet Module Example

Source: https://github.com/alkacon/opencms-core/blob/master/modules/org.opencms.base/static/editors/codemirror/dist/mode/puppet/index.html

This snippet demonstrates a typical Puppet module structure for managing AutoMySQLBackup. It includes class definitions, parameter validation, and resource declarations for files and directories.

```puppet
# == Class: automysqlbackup
#
# Puppet module to install AutoMySQLBackup for periodic MySQL backups.
#
# class { 'automysqlbackup':
#   backup_dir => '/mnt/backups',
# }
class automysqlbackup (
  $bin_dir = $automysqlbackup::params::bin_dir,
  $etc_dir = $automysqlbackup::params::etc_dir,
  $backup_dir = $automysqlbackup::params::backup_dir,
  $install_multicore = undef,
  $config = {},
  $config_defaults = {},
) inherits automysqlbackup::params {

  # Ensure valid paths are assigned
  validate_absolute_path($bin_dir)
  validate_absolute_path($etc_dir)
  validate_absolute_path($backup_dir)

  # Create a subdirectory in /etc for config files
  file {
    $etc_dir: ensure => directory, owner => 'root', group => 'root', mode => '0750',
  }

  # Create an example backup file, useful for reference
  file {
    "${etc_dir}/automysqlbackup.conf.example":
      ensure => file,
      owner  => 'root',
      group  => 'root',
      mode   => '0660',
      source => 'puppet:///modules/automysqlbackup/automysqlbackup.conf',
  }

  # Add files from the developer
  file {
    "${etc_dir}/AMB_README":
      source => 'puppet:///modules/automysqlbackup/AMB_README',
  }
  file {
    "${etc_dir}/AMB_LICENSE":
      source => 'puppet:///modules/automysqlbackup/AMB_LICENSE',
  }

  # Install the actual binary file
  file {
    "${bin_dir}/automysqlbackup":
      ensure => file,
      owner  => 'root',
      group  => 'root',
      mode   => '0755',
      source => 'puppet:///modules/automysqlbackup/automysqlbackup',
  }

  # Create the base backup directory
  file {
    $backup_dir:
      ensure => directory,
      owner  => 'root',
      group  => 'root',
      mode   => '0755',
  }

  # If you'd like to keep your config in hiera and pass it to this class
  if !empty($config) {
    create_resources('automysqlbackup::backup', $config, $config_defaults)
  }

  # If using RedHat family, must have the RPMforge repo's enabled
  if $install_multicore {
    package {
      ['pigz', 'pbzip2']:
        ensure => installed
    }
  }
}

```