XmlImportAstSequence.php — WP All Import – Drag & Drop Import for CSV, XML, Excel & Google Sheets 2.13

wp-all-import / libraries / ast / XmlImportAstSequence.php

wp-all-import / libraries / ast Last commit date

XmlImportAstSequence.php

161 lines

1	<?php
2	/**
3	* @author Olexandr Zanichkovsky <olexandr.zanichkovsky@zophiatech.com>
4	* @package AST
5	*/
6
7	require_once dirname(__FILE__) . '/XmlImportAstStatement.php';
8
9	/**
10	* Represents statement sequence
11	*/
12	class XmlImportAstSequence extends XmlImportAstStatement
13	{
14
15	/**
16	* Sequence instance number
17	*
18	* @var int
19	*/
20	private static $sequenceInstanceNumber = 0;
21
22	/**
23	* Current sequence number
24	*
25	* @var int
26	*/
27	private $sequenceNumber;
28
29	/**
30	* Current variable number
31	*
32	* @var int
33	*/
34	private $varNumber = 0;
35
36	/**
37	* List of statements
38	*
39	* @var array
40	*/
41	private $statements = array();
42
43	/**
44	* Variable definitions
45	*
46	* @var array
47	*/
48	private $variableDefinitions = array();
49
50	/**
51	* Variables
52	*
53	* @var array
54	*/
55	private $variables = array();
56
57	/**
58	* Creates new instance
59	*/
60	public function __construct()
61	{
62	$this->sequenceNumber = self::$sequenceInstanceNumber++;
63	}
64
65	/**
66	* Adds statement to a sequence
67	*
68	* @param XmlImportAstStatement $statement
69	*/
70	public function addStatement(XmlImportAstStatement $statement)
71	{
72	$this->statements[] = $statement;
73	}
74
75	/**
76	* Gets the list of statements
77	*
78	* @return array
79	*/
80	public function getStatements()
81	{
82	return $this->statements;
83	}
84
85	/**
86	* Adds variable to a sequence
87	*
88	* @param XmlImportAstXPath $xpath
89	*/
90	public function addVariable(XmlImportAstXPath $xpath)
91	{
92	if (!array_key_exists($xpath->getValue(), $this->variables))
93	{
94	$var = '$v' . $this->sequenceNumber . '_' . $this->varNumber++;
95	$value = $escapedValue = strtr($xpath->getValue(), array(
96	"\n" => "\\n",
97	"\t" => "\\t",
98	"\r" => "\\r",
99	"$" => "\\$",
100	"\"" => "\\\"",
101	"\\" => "\\\\",
102	));
103	$result = $var . ' = {{XML}}->xpath("' . $value . '");';
104	$this->variables[$xpath->getValue()] = $var;
105	$this->variableDefinitions[] = $result;
106	}
107	}
108
109	/**
110	* Gets variable definitions
111	*
112	* @return array
113	*/
114	public function getVariableDefinitions()
115	{
116	return $this->variableDefinitions;
117	}
118
119	/**
120	* Gets variables
121	*
122	* @return array
123	*/
124	public function getVariables()
125	{
126	return $this->variables;
127	}
128
129	/**
130	* Returns the number of current instance
131	*
132	* @return int
133	*/
134	public function getSequenceNumber()
135	{
136	return $this->sequenceNumber;
137	}
138
139	/**
140	* String representation of a sequence node
141	*
142	* @return string
143	*/
144	public function __toString()
145	{
146	$result = "--> begin " . get_class($this) . "\n";
147	foreach ($this->getStatements() as $statement)
148	{
149	$array = explode("\n", $statement);
150	for ($i = 0; $i < count($array); $i++)
151	{
152	$array[$i] = ' ' . $array[$i];
153	}
154	$result .= implode("\n", $array) . "\n";
155	}
156
157	$result .= "--> end " . get_class($this);
158
159	return $result;
160	}
161	}