library\think\template\taglib\Cx.php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK IT ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006-2016 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st
// +----------------------------------------------------------------------
namespace think\template\taglib;
use think\template\TagLib;
/**
* CX标签库解析类
* @category Think
* @package Think
* @subpackage Driver.Taglib
* @author liu21st
*/
class Cx extends Taglib
{
// 标签定义
protected $tags = [
// 标签定义： attr 属性列表 close 是否闭合（0 或者1 默认1） alias 标签别名 level 嵌套层次
'php' => ['attr' => ''],
'volist' => ['attr' => 'name,id,offset,length,key,mod', 'alias' => 'iterate'],
'foreach' => ['attr' => 'name,id,item,key,offset,length,mod', 'expression' => true],
'if' => ['attr' => 'condition', 'expression' => true],
'elseif' => ['attr' => 'condition', 'close' => 0, 'expression' => true],
'else' => ['attr' => '', 'close' => 0],
'switch' => ['attr' => 'name', 'expression' => true],
'case' => ['attr' => 'value,break', 'expression' => true],
'default' => ['attr' => '', 'close' => 0],
'compare' => ['attr' => 'name,value,type', 'alias' => ['eq,equal,notequal,neq,gt,lt,egt,elt,heq,nheq', 'type']],
'range' => ['attr' => 'name,value,type', 'alias' => ['in,notin,between,notbetween', 'type']],
'empty' => ['attr' => 'name'],
'notempty' => ['attr' => 'name'],
'present' => ['attr' => 'name'],
'notpresent' => ['attr' => 'name'],
'defined' => ['attr' => 'name'],
'notdefined' => ['attr' => 'name'],
'load' => ['attr' => 'file,href,type,value,basepath', 'close' => 0, 'alias' => ['import,css,js', 'type']],
'assign' => ['attr' => 'name,value', 'close' => 0],
'define' => ['attr' => 'name,value', 'close' => 0],
'for' => ['attr' => 'start,end,name,comparison,step'],
'url' => ['attr' => 'link,vars,suffix,domain', 'close' => 0, 'expression' => true],
'function' => ['attr' => 'name,vars,use,call'],
];
/**
* php标签解析
* 格式：
* {php}echo $name{/php}
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function tagPhp($tag, $content)
{
$parseStr = '';
return $parseStr;
}
/**
* volist标签解析 循环输出数据集
* 格式：
* {volist name="userList" id="user" empty=""}
* {user.username}
* {user.email}
* {/volist}
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string|void
*/
public function tagVolist($tag, $content)
{
$name = $tag['name'];
$id = $tag['id'];
$empty = isset($tag['empty']) ? $tag['empty'] : '';
$key = !empty($tag['key']) ? $tag['key'] : 'i';
$mod = isset($tag['mod']) ? $tag['mod'] : '2';
$offset = !empty($tag['offset']) && is_numeric($tag['offset']) ? intval($tag['offset']) : 0;
$length = !empty($tag['length']) && is_numeric($tag['length']) ? intval($tag['length']) : 'null';
// 允许使用函数设定数据集 {$vo.name}
$parseStr = ' $flag = substr($name, 0, 1);
if (':' == $flag) {
$name = $this->autoBuildVar($name);
$parseStr .= '$_result=' . $name . ';';
$name = '$_result';
} else {
$name = $this->autoBuildVar($name);
}
$parseStr .= 'if(is_array(' . $name . ') || ' . $name . ' instanceof \think\Collection): $' . $key . ' = 0;';
// 设置了输出数组长度
if (0 != $offset || 'null' != $length) {
$parseStr .= '$__LIST__ = is_array(' . $name . ') ? array_slice(' . $name . ',' . $offset . ',' . $length . ', true) : ' . $name . '->slice(' . $offset . ',' . $length . ', true); ';
} else {
$parseStr .= ' $__LIST__ = ' . $name . ';';
}
$parseStr .= 'if( count($__LIST__)==0 ) : echo "' . $empty . '" ;';
$parseStr .= 'else: ';
$parseStr .= 'foreach($__LIST__ as $key=>$' . $id . '): ';
$parseStr .= '$mod = ($' . $key . ' % ' . $mod . ' );';
$parseStr .= '++$' . $key . ';?>';
$parseStr .= $content;
$parseStr .= '';
if (!empty($parseStr)) {
return $parseStr;
}
return;
}
/**
* foreach标签解析 循环输出数据集
* 格式：
* {foreach name="userList" id="user" key="key" index="i" mod="2" offset="3" length="5" empty=""}
* {user.username}
* {/foreach}
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string|void
*/
public function tagForeach($tag, $content)
{
// 直接使用表达式
if (!empty($tag['expression'])) {
$expression = ltrim(rtrim($tag['expression'], ')'), '(');
$expression = $this->autoBuildVar($expression);
$parseStr = '';
$parseStr .= $content;
$parseStr .= '';
return $parseStr;
}
$name = $tag['name'];
$key = !empty($tag['key']) ? $tag['key'] : 'key';
$item = !empty($tag['id']) ? $tag['id'] : $tag['item'];
$empty = isset($tag['empty']) ? $tag['empty'] : '';
$offset = !empty($tag['offset']) && is_numeric($tag['offset']) ? intval($tag['offset']) : 0;
$length = !empty($tag['length']) && is_numeric($tag['length']) ? intval($tag['length']) : 'null';
$parseStr = ' // 支持用函数传数组
if (':' == substr($name, 0, 1)) {
$var = '$_' . uniqid();
$name = $this->autoBuildVar($name);
$parseStr .= $var . '=' . $name . '; ';
$name = $var;
} else {
$name = $this->autoBuildVar($name);
}
$parseStr .= 'if(is_array(' . $name . ') || ' . $name . ' instanceof \think\Collection): ';
// 设置了输出数组长度
if (0 != $offset || 'null' != $length) {
if (!isset($var)) {
$var = '$_' . uniqid();
}
$parseStr .= $var . ' = is_array(' . $name . ') ? array_slice(' . $name . ',' . $offset . ',' . $length . ', true) : ' . $name . '->slice(' . $offset . ',' . $length . ', true); ';
} else {
$var = &$name;
}
$parseStr .= 'if( count(' . $var . ')==0 ) : echo "' . $empty . '" ;';
$parseStr .= 'else: ';
// 设置了索引项
if (isset($tag['index'])) {
$index = $tag['index'];
$parseStr .= '$' . $index . '=0; ';
}
$parseStr .= 'foreach(' . $var . ' as $' . $key . '=>$' . $item . '): ';
// 设置了索引项
if (isset($tag['index'])) {
$index = $tag['index'];
if (isset($tag['mod'])) {
$mod = (int) $tag['mod'];
$parseStr .= '$mod = ($' . $index . ' % ' . $mod . '); ';
}
$parseStr .= '++$' . $index . '; ';
}
$parseStr .= '?>';
// 循环体中的内容
$parseStr .= $content;
$parseStr .= '';
if (!empty($parseStr)) {
return $parseStr;
}
return;
}
/**
* if标签解析
* 格式：
* {if condition=" $a eq 1"}
* {elseif condition="$a eq 2" /}
* {else /}
* {/if}
* 表达式支持 eq neq gt egt lt elt == > >= < <= or and || &&
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function tagIf($tag, $content)
{
$condition = !empty($tag['expression']) ? $tag['expression'] : $tag['condition'];
$condition = $this->parseCondition($condition);
$parseStr = '' . $content . '';
return $parseStr;
}
/**
* elseif标签解析
* 格式：见if标签
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function tagElseif($tag, $content)
{
$condition = !empty($tag['expression']) ? $tag['expression'] : $tag['condition'];
$condition = $this->parseCondition($condition);
$parseStr = '';
return $parseStr;
}
/**
* else标签解析
* 格式：见if标签
* @access public
* @param array $tag 标签属性
* @return string
*/
public function tagElse($tag)
{
$parseStr = '';
return $parseStr;
}
/**
* switch标签解析
* 格式：
* {switch name="a.name"}
* {case value="1" break="false"}1{/case}
* {case value="2" }2{/case}
* {default /}other
* {/switch}
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function tagSwitch($tag, $content)
{
$name = !empty($tag['expression']) ? $tag['expression'] : $tag['name'];
$name = $this->autoBuildVar($name);
$parseStr = '' . $content . '';
return $parseStr;
}
/**
* case标签解析 需要配合switch才有效
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function tagCase($tag, $content)
{
$value = !empty($tag['expression']) ? $tag['expression'] : $tag['value'];
$flag = substr($value, 0, 1);
if ('$' == $flag || ':' == $flag) {
$value = $this->autoBuildVar($value);
$value = 'case ' . $value . ':';
} elseif (strpos($value, '|')) {
$values = explode('|', $value);
$value = '';
foreach ($values as $val) {
$value .= 'case "' . addslashes($val) . '":';
}
} else {
$value = 'case "' . $value . '":';
}
$parseStr = '' . $content;
$isBreak = isset($tag['break']) ? $tag['break'] : '';
if ('' == $isBreak || $isBreak) {
$parseStr .= '';
}
return $parseStr;
}
/**
* default标签解析 需要配合switch才有效
* 使用： {default /}ddfdf
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function tagDefault($tag)
{
$parseStr = '';
return $parseStr;
}
/**
* compare标签解析
* 用于值的比较 支持 eq neq gt lt egt elt heq nheq 默认是eq
* 格式： {compare name="" type="eq" value="" }content{/compare}
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function tagCompare($tag, $content)
{
$name = $tag['name'];
$value = $tag['value'];
$type = isset($tag['type']) ? $tag['type'] : 'eq'; // 比较类型
$name = $this->autoBuildVar($name);
$flag = substr($value, 0, 1);
if ('$' == $flag || ':' == $flag) {
$value = $this->autoBuildVar($value);
} else {
$value = '\'' . $value . '\'';
}
switch ($type) {
case 'equal':
$type = 'eq';
break;
case 'notequal':
$type = 'neq';
break;
}
$type = $this->parseCondition(' ' . $type . ' ');
$parseStr = '' . $content . '';
return $parseStr;
}
/**
* range标签解析
* 如果某个变量存在于某个范围 则输出内容 type= in 表示在范围内 否则表示在范围外
* 格式： {range name="var|function" value="val" type='in|notin' }content{/range}
* example: {range name="a" value="1,2,3" type='in' }content{/range}
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function tagRange($tag, $content)
{
$name = $tag['name'];
$value = $tag['value'];
$type = isset($tag['type']) ? $tag['type'] : 'in'; // 比较类型
$name = $this->autoBuildVar($name);
$flag = substr($value, 0, 1);
if ('$' == $flag || ':' == $flag) {
$value = $this->autoBuildVar($value);
$str = 'is_array(' . $value . ')?' . $value . ':explode(\',\',' . $value . ')';
} else {
$value = '"' . $value . '"';
$str = 'explode(\',\',' . $value . ')';
}
if ('between' == $type) {
$parseStr = '= $_RANGE_VAR_[0] && ' . $name . '<= $_RANGE_VAR_[1]):?>' . $content . '';
} elseif ('notbetween' == $type) {
$parseStr = '$_RANGE_VAR_[1]):?>' . $content . '';
} else {
$fun = ('in' == $type) ? 'in_array' : '!in_array';
$parseStr = '' . $content . '';
}
return $parseStr;
}
/**
* present标签解析
* 如果某个变量已经设置 则输出内容
* 格式： {present name="" }content{/present}
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function tagPresent($tag, $content)
{
$name = $tag['name'];
$name = $this->autoBuildVar($name);
$parseStr = '' . $content . '';
return $parseStr;
}
/**
* notpresent标签解析
* 如果某个变量没有设置，则输出内容
* 格式： {notpresent name="" }content{/notpresent}
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function tagNotpresent($tag, $content)
{
$name = $tag['name'];
$name = $this->autoBuildVar($name);
$parseStr = '' . $content . '';
return $parseStr;
}
/**
* empty标签解析
* 如果某个变量为empty 则输出内容
* 格式： {empty name="" }content{/empty}
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function tagEmpty($tag, $content)
{
$name = $tag['name'];
$name = $this->autoBuildVar($name);
$parseStr = 'isEmpty())): ?>' . $content . '';
return $parseStr;
}
/**
* notempty标签解析
* 如果某个变量不为empty 则输出内容
* 格式： {notempty name="" }content{/notempty}
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function tagNotempty($tag, $content)
{
$name = $tag['name'];
$name = $this->autoBuildVar($name);
$parseStr = 'isEmpty()))): ?>' . $content . '';
return $parseStr;
}
/**
* 判断是否已经定义了该常量
* {defined name='TXT'}已定义{/defined}
* @param array $tag
* @param string $content
* @return string
*/
public function tagDefined($tag, $content)
{
$name = $tag['name'];
$parseStr = '' . $content . '';
return $parseStr;
}
/**
* 判断是否没有定义了该常量
* {notdefined name='TXT'}已定义{/notdefined}
* @param array $tag
* @param string $content
* @return string
*/
public function tagNotdefined($tag, $content)
{
$name = $tag['name'];
$parseStr = '' . $content . '';
return $parseStr;
}
/**
* load 标签解析 {load file="/static/js/base.js" /}
* 格式：{load file="/static/css/base.css" /}
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function tagLoad($tag, $content)
{
$file = isset($tag['file']) ? $tag['file'] : $tag['href'];
$type = isset($tag['type']) ? strtolower($tag['type']) : '';
$parseStr = '';
$endStr = '';
// 判断是否存在加载条件 允许使用函数判断(默认为isset)
if (isset($tag['value'])) {
$name = $tag['value'];
$name = $this->autoBuildVar($name);
$name = 'isset(' . $name . ')';
$parseStr .= '';
$endStr = '';
}
// 文件方式导入
$array = explode(',', $file);
foreach ($array as $val) {
$type = strtolower(substr(strrchr($val, '.'), 1));
switch ($type) {
case 'js':
$parseStr .= '';
break;
case 'css':
$parseStr .= '';
break;
case 'php':
$parseStr .= '';
break;
}
}
return $parseStr . $endStr;
}
/**
* assign标签解析
* 在模板中给某个变量赋值 支持变量赋值
* 格式： {assign name="" value="" /}
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function tagAssign($tag, $content)
{
$name = $this->autoBuildVar($tag['name']);
$flag = substr($tag['value'], 0, 1);
if ('$' == $flag || ':' == $flag) {
$value = $this->autoBuildVar($tag['value']);
} else {
$value = '\'' . $tag['value'] . '\'';
}
$parseStr = '';
return $parseStr;
}
/**
* define标签解析
* 在模板中定义常量 支持变量赋值
* 格式： {define name="" value="" /}
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function tagDefine($tag, $content)
{
$name = '\'' . $tag['name'] . '\'';
$flag = substr($tag['value'], 0, 1);
if ('$' == $flag || ':' == $flag) {
$value = $this->autoBuildVar($tag['value']);
} else {
$value = '\'' . $tag['value'] . '\'';
}
$parseStr = '';
return $parseStr;
}
/**
* for标签解析
* 格式：
* {for start="" end="" comparison="" step="" name=""}
* content
* {/for}
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function tagFor($tag, $content)
{
//设置默认值
$start = 0;
$end = 0;
$step = 1;
$comparison = 'lt';
$name = 'i';
$rand = rand(); //添加随机数，防止嵌套变量冲突
//获取属性
foreach ($tag as $key => $value) {
$value = trim($value);
$flag = substr($value, 0, 1);
if ('$' == $flag || ':' == $flag) {
$value = $this->autoBuildVar($value);
}
switch ($key) {
case 'start':
$start = $value;
break;
case 'end':
$end = $value;
break;
case 'step':
$step = $value;
break;
case 'comparison':
$comparison = $value;
break;
case 'name':
$name = $value;
break;
}
}
$parseStr = ' $parseStr .= 'for($' . $name . '=$__FOR_START_' . $rand . '__;' . $this->parseCondition('$' . $name . ' ' . $comparison . ' $__FOR_END_' . $rand . '__') . ';$' . $name . '+=' . $step . '){ ?>';
$parseStr .= $content;
$parseStr .= '';
return $parseStr;
}
/**
* U函数的tag标签
* 格式：{url link="模块/控制器/方法" vars="参数" suffix="true或者false 是否带有后缀" domain="true或者false 是否携带域名" /}
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function tagUrl($tag, $content)
{
$url = isset($tag['link']) ? $tag['link'] : '';
$vars = isset($tag['vars']) ? $tag['vars'] : '';
$suffix = isset($tag['suffix']) ? $tag['suffix'] : 'true';
$domain = isset($tag['domain']) ? $tag['domain'] : 'false';
return '';
}
/**
* function标签解析 匿名函数，可实现递归
* 使用：
* {function name="func" vars="$data" call="$list" use="&$a,&$b"}
* {if is_array($data)}
* {foreach $data as $val}
* {~func($val) /}
* {/foreach}
* {else /}
* {$data}
* {/if}
* {/function}
* @access public
* @param array $tag 标签属性
* @param string $content 标签内容
* @return string
*/
public function tagFunction($tag, $content)
{
$name = !empty($tag['name']) ? $tag['name'] : 'func';
$vars = !empty($tag['vars']) ? $tag['vars'] : '';
$call = !empty($tag['call']) ? $tag['call'] : '';
$use = ['&$' . $name];
if (!empty($tag['use'])) {
foreach (explode(',', $tag['use']) as $val) {
$use[] = '&' . ltrim(trim($val), '&');
}
}
$parseStr = ' $parseStr .= ' ?>' . $content . ' $parseStr .= $call ? '$' . $name . '(' . $call . '); ?>' : '?>';
return $parseStr;
}
}