build.php

<?php
date_default_timezone_set("Asia/Shanghai");

function id2key($id)
{
	if(!preg_match("!^[0-9]+(\\.[0-9]+)*$!",$id))
	{
		return $id;
	}

	$key = str_replace(".","","$id");
	$key .= "00000000";
	$key = substr($key,0,8);
	return $key;
}

function page_link($id)
{
	if(preg_match("!^[0-9]+(\\.[0-9]+)*$!",$id))
	{
		return "ch{$id}.html";
	}
	else
	{
		return "{$id}.html";
	}
}

$path = dirname(__FILE__);

/*
 array(
	"key"=>array(
		'id'=>'1.1',
		'title'=>'',
		'prev'=>'',
		'next',
		'content'
	)
 )
*/
$c = array();

//获取文件列表
$file_list = glob("*.txt");

/*
 章节号转成key
 1.1 =》 11000000 总共8位数
*/
foreach($file_list as $value)
{
	$id = basename($value,".txt");

	$key = id2key($id);
	
	//开始读这篇文章
	$page = file_get_contents($value);
	$tmp = strpos($page,"#");
	if($tmp === false)
	{
		trigger_error("{$value}文件没有meta信息",E_USER_ERROR);
	}
	
	$repeat_count = 1;
	
	$meta = substr($page,0,strpos($page,"#")+1);
	$content = str_replace($meta,"",$page,$repeat_count);
	
	$meta = trim($meta,"#");
	$meta = preg_split("![\\n\\r]+!",trim($meta));
	if(count($meta)!=3)
	{
		trigger_error("{$value}文件的meta信息不全",E_USER_ERROR);
	}

	//对content的code部分进行处理
	$content = preg_replace_callback(
		"!<code\s+([A-Za-z_0-9]+)?>(.*?)</code>!ism",
		create_function('$m','return "<pre class=\"sh_{$m[1]}\">".htmlspecialchars($m[2],ENT_QUOTES)."</pre>";'),
		$content
	);
	
	clearstatcache();
	
	$c[$key]=array(
		'id'=>$id,
		'title'=>$meta[0],
		'prev'=>$meta[1],
		'next'=>$meta[2],
		'content'=>$content,
		'last_modified'=>date("Y-m-d",filemtime($value))
	);
}

function chapter_id($id)
{
	$id = explode(".",$id);
	return $id[0];
}


function page_title($id)
{
	global $c;
	$key = id2key($id);
	if(isset($c[$key]))
	{
		return $c[$key]['title'];
	}
}

function create($value)
{
	global $c;
	extract($value);
	$chapter_id = chapter_id($value['id']);
	$chapter_title = page_title($chapter_id);
	$chapter_link = page_link($chapter_id);

	if($value['prev'])
	{
		$prev_link = page_link($value['prev']);
		$prev_title = page_title($value['prev']);
	}

	if($value['next'])
	{
		$next_link = page_link($value['next']);
		$next_title = page_title($value['next']);
	}

	ob_start();
	require('tpl.html');
	$content = ob_get_contents();
	ob_end_clean();
	file_put_contents("html/".page_link($id),$content);
}

//生成文章
foreach($c as $value)
{
	create($value);
}

//生成站点地图

$content = '<?xml version="1.0" encoding="UTF-8"?>
	<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">	
	';
foreach($c as $value)
{
	$link = page_link($value['id']);
$content .= <<<eot
	
	<url>
		<loc>http://phpbook.sinaapp.com/{$link}</loc>
		<lastmod>{$value['last_modified']}</lastmod>
		<changefreq>daily</changefreq>
		<priority>0.6</priority>
	</url>
eot;
}
$content .= '</urlset>';

file_put_contents("html/sitemap.xml",$content);