Proyectos de Subversion Moodle

Rev

| Ultima modificación | Ver Log |

Rev Autor Línea Nro. Línea
1441 ariadna 1 
<?php
2 
 
3 
namespace Sabberworm\CSS\Value;
4 
 
5 
use Sabberworm\CSS\OutputFormat;
6 
use Sabberworm\CSS\Parsing\ParserState;
7 
use Sabberworm\CSS\Parsing\SourceException;
8 
use Sabberworm\CSS\Parsing\UnexpectedEOFException;
9 
use Sabberworm\CSS\Parsing\UnexpectedTokenException;
10 
 
11 
/**
12 
 * This class is a wrapper for quoted strings to distinguish them from keywords.
13 
 *
14 
 * `CSSString`s always output with double quotes.
15 
 */
16 
class CSSString extends PrimitiveValue
17 
{
18 
    /**
19 
     * @var string
20 
     */
21 
    private $sString;
22 
 
23 
    /**
24 
     * @param string $sString
25 
     * @param int $iLineNo
26 
     */
27 
    public function __construct($sString, $iLineNo = 0)
28 
    {
29 
        $this->sString = $sString;
30 
        parent::__construct($iLineNo);
31 
    }
32 
 
33 
    /**
34 
     * @return CSSString
35 
     *
36 
     * @throws SourceException
37 
     * @throws UnexpectedEOFException
38 
     * @throws UnexpectedTokenException
39 
     */
40 
    public static function parse(ParserState $oParserState)
41 
    {
42 
        $sBegin = $oParserState->peek();
43 
        $sQuote = null;
44 
        if ($sBegin === "'") {
45 
            $sQuote = "'";
46 
        } elseif ($sBegin === '"') {
47 
            $sQuote = '"';
48 
        }
49 
        if ($sQuote !== null) {
50 
            $oParserState->consume($sQuote);
51 
        }
52 
        $sResult = "";
53 
        $sContent = null;
54 
        if ($sQuote === null) {
55 
            // Unquoted strings end in whitespace or with braces, brackets, parentheses
56 
            while (!preg_match('/[\\s{}()<>\\[\\]]/isu', $oParserState->peek())) {
57 
                $sResult .= $oParserState->parseCharacter(false);
58 
            }
59 
        } else {
60 
            while (!$oParserState->comes($sQuote)) {
61 
                $sContent = $oParserState->parseCharacter(false);
62 
                if ($sContent === null) {
63 
                    throw new SourceException(
64 
                        "Non-well-formed quoted string {$oParserState->peek(3)}",
65 
                        $oParserState->currentLine()
66 
                    );
67 
                }
68 
                $sResult .= $sContent;
69 
            }
70 
            $oParserState->consume($sQuote);
71 
        }
72 
        return new CSSString($sResult, $oParserState->currentLine());
73 
    }
74 
 
75 
    /**
76 
     * @param string $sString
77 
     *
78 
     * @return void
79 
     */
80 
    public function setString($sString)
81 
    {
82 
        $this->sString = $sString;
83 
    }
84 
 
85 
    /**
86 
     * @return string
87 
     */
88 
    public function getString()
89 
    {
90 
        return $this->sString;
91 
    }
92 
 
93 
    /**
94 
     * @return string
95 
     */
96 
    public function __toString()
97 
    {
98 
        return $this->render(new OutputFormat());
99 
    }
100 
 
101 
    /**
102 
     * @param OutputFormat|null $oOutputFormat
103 
     *
104 
     * @return string
105 
     */
106 
    public function render($oOutputFormat)
107 
    {
108 
        $sString = addslashes($this->sString);
109 
        $sString = str_replace("\n", '\A', $sString);
110 
        return $oOutputFormat->getStringQuotingType() . $sString . $oOutputFormat->getStringQuotingType();
111 
    }
112 
}