添加新的显示代码插件——Crayon Syntax Highlighter

简介

最近一段时间学习Arduino和Processing，经常要给文章里添加它们的代码，可是之前一直使用的显示代码插件不能识别这种代码，所以显示出来的效果很不好。于是到今天，我添加了该插件：Crayon Syntax Highlighter。

支持的语言

Crayon Syntax Highlighter 支持53种编程语言：

ID	Name	Version	File Extensions	Aliases
abap	ABAP	1.8.4
as	ActionScript	1.8.0	swf, fla	flash, swf, fla
ada	ADA	0.0.2
amigados	AmigaDOS	1.0
apache	Apache	1.8.3
applescript	AppleScript	1.9.13	scpt, applescript
arduino	Arduino	1.0.0
asp	ASP	1.0.0
asm	Assembly (x86)	1.9.1		x86
autoit	AutoIt	1.8.2
c	C	1.8.1
c#	C#	1.8.1	cs	cs, csharp
c++	C++	1.8.1	h, hh, hpp, hxx, h++, cc, cpp, cxx, c++	cpp
coffee	CoffeeScript	1.0
css	CSS	1.9.0
default	Default	1.8.1
delphi	Delphi/Pascal	1.0.0	pas	pascal
diff	diff	1.10.1
erlang	Erlang	1.14
go	Go	1.12
haskell	Haskell	1.9.8
ilogic	Inventor iLogic	1.7.30		logic, inventor, inv, ilog
java	Java	1.7.6	java, class, jar
js	JavaScript	1.8		javascript
less	LESS	1.0
lisp	Lisp	1.0
lua	Lua	1.8.1
matlab	MATLAB	1.0.0
reg	Microsoft Registry	5
miva	MIVA Script	1.11	mv, mvc, mvt
monkey	Monkey	1.0
batch	MS DOS	1.1
mysql	MySQL	1.0.0
objc	Objective-C	1.8.1	m, mm	obj-c
plsql	Oracle PL/SQL	0.1		pls, ora
perl	Perl	1.9.2	pl	pl
pgsql	PgSQL	1.8.0		sql, mysql
php	PHP	1.9.4
ps	PowerShell	1.8.2		powershell
python	Python	1.1	py, pyw, pyc, pyo, pyd	py
r	R	1.0.0
ruby	Ruby	1.7.24	rb, rbx, rhtml	rb
sass	Sass	1.0
scala	Scala	2.10.0
scheme	Scheme	1.8.4
sh	Shell	1.8.1		shell, unix, bash
tex	TeX	1.9.8
tsql	Transact-SQL	1.8.0
vim	Vim	1.0
vb	Visual Basic	1.0	vbs	vbs
vbnet	Visual Basic .NET	1.0
xhtml	XHTML	1.8.0		xml, html
yaml	YAML	1.8.1

使用方法

不再像之前的那样需要手动输入代码段，然后将代码放到里面。在WordPress自带的编辑器中会出现一个按钮：

点开之后会跳出插入对话框，里面有很详细，很直观的选项，用起来很简单了。

代码示例

长代码：

/*
 Yeelink sensor client example
 */

#include <SPI.h>
#include <Ethernet.h>
#include <Wire.h>
#include <math.h>

int BH1750address = 0x23;
byte buff[2];

// for yeelink api
#define APIKEY         "e845dbce4840cc549b7584a4d1e5a12e" // replace your yeelink api key here
#define DEVICEID       3414 // replace your device ID
#define SENSORID       5535 // replace your sensor ID

// assign a MAC address for the ethernet controller.
byte mac[] = { 0x00, 0x1D, 0x72, 0x82, 0x35, 0x9D};
// initialize the library instance:
EthernetClient client;
char server[] = "api.yeelink.net";   // name address for yeelink API

unsigned long lastConnectionTime = 0;          // last time you connected to the server, in milliseconds
boolean lastConnected = false;                 // state of the connection last time through the main loop
const unsigned long postingInterval = 30*1000; // delay between 2 datapoints, 30s

void setup() {
  Wire.begin();
  // start serial port:
  Serial.begin(57600);
  // start the Ethernet connection with DHCP:
  if (Ethernet.begin(mac) == 0) {
    Serial.println("Failed to configure Ethernet using DHCP");
    for(;;)
      ;
  }
  else {
    Serial.println("Ethernet configuration OK");
  }
}

void loop() {
  // if there's incoming data from the net connection.
  // send it out the serial port.  This is for debugging
  // purposes only:
  if (client.available()) {
    char c = client.read();
    Serial.print(c);
  }

  // if there's no net connection, but there was one last time
  // through the loop, then stop the client:
  if (!client.connected() && lastConnected) {
    Serial.println();
    Serial.println("disconnecting.");
    client.stop();
  }

  // if you're not connected, and ten seconds have passed since
  // your last connection, then connect again and send data:
  if(!client.connected() && (millis() - lastConnectionTime > postingInterval)) {
    // read sensor data, replace with your code
    int sensorReading = readLightSensor();
    //send data to server
    sendData(sensorReading);
  }
  // store the state of the connection for next time through
  // the loop:
  lastConnected = client.connected();
}

// this method makes a HTTP connection to the server:
void sendData(int thisData) {
  // if there's a successful connection:
  if (client.connect(server, 80)) {
    Serial.println("connecting...");
    // send the HTTP PUT request:
    client.print("POST /v1.0/device/");
    client.print(DEVICEID);
    client.print("/sensor/");
    client.print(SENSORID);
    client.print("/datapoints");
    client.println(" HTTP/1.1");
    client.println("Host: api.yeelink.net");
    client.print("Accept: *");
    client.print("/");
    client.println("*");
    client.print("U-ApiKey: ");
    client.println(APIKEY);
    client.print("Content-Length: ");

    // calculate the length of the sensor reading in bytes:
    // 8 bytes for {"value":} + number of digits of the data:
    int thisLength = 10 + getLength(thisData);
    client.println(thisLength);

    client.println("Content-Type: application/x-www-form-urlencoded");
    client.println("Connection: close");
    client.println();

    // here's the actual content of the PUT request:
    client.print("{\"value\":");
    client.print(thisData);
    client.println("}");
  }
  else {
    // if you couldn't make a connection:
    Serial.println("connection failed");
    Serial.println();
    Serial.println("disconnecting.");
    client.stop();
  }
   // note the time that the connection was made or attempted:
  lastConnectionTime = millis();
}

// This method calculates the number of digits in the
// sensor reading.  Since each digit of the ASCII decimal
// representation is a byte, the number of digits equals
// the number of bytes:
int getLength(int someValue) {
  // there's at least one byte:
  int digits = 1;
  // continually divide the value by ten,
  // adding one to the digit count for each
  // time you divide, until you're at 0:
  int dividend = someValue /10;
  while (dividend > 0) {
    dividend = dividend /10;
    digits++;
  }
  // return the number of digits:
  return digits;
}

///////////////////////////////////////////////////////////////////////////
// get data from light sensor
// you can replace this code for your sensor
int readLightSensor()
{
  uint16_t val=0;
  BH1750_Init(BH1750address);
  delay(200);
  if(2==BH1750_Read(BH1750address))
  {
    val=((buff[0]<<8)|buff[1])/1.2;
  }

  Serial.print("Sensor value is: ");
  Serial.println((int)val);

  return val;
}

int BH1750_Read(int address) //
{
  int i=0;
  Wire.beginTransmission(address);
  Wire.requestFrom(address, 2);
  while(Wire.available()) //
  {
    buff[i] = Wire.read();  // receive one byte
    i++;
  }
  Wire.endTransmission();
  return i;
}

void BH1750_Init(int address)
{
  Wire.beginTransmission(address);
  Wire.write(0x10);//1lx reolution 120ms
  Wire.endTransmission();
}

短代码：

int led = 13;

// the setup routine runs once when you press reset:
void setup() {                
  // initialize the digital pin as an output.
  pinMode(led, OUTPUT);     
}

// the loop routine runs over and over again forever:
void loop() {
  digitalWrite(led, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(1000);               // wait for a second
  digitalWrite(led, LOW);    // turn the LED off by making the voltage LOW
  delay(1000);               // wait for a second
}