Parser::parseFWS() - Code Metrics - Inspection of "Added EmailValidatorInterface (#120)" - egulias/EmailValidator - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — 1.2 ( cbfe3e...b8bb14 )

by Eduardo Gulias

created 2016-07-03 21:52 UTC

Parser::parseFWS() C

↳ Parent: Parser

Complexity

Conditions	8
Paths	5

Size

Total Lines	24
Code Lines	13

Duplication

Lines	3
Ratio	12.5 %

Code Coverage

Tests	13
CRAP Score	8.0231

Importance

Changes	2
Bugs	0	Features	0

Metric	Value
c	2
b	0
f	0
dl	3
loc	24
ccs	13
cts	14
cp	0.9286
rs	5.7377
cc	8
eloc	13
nc	5
nop	0
crap	8.0231

<?php

namespace Egulias\EmailValidator\Parser;

use Egulias\EmailValidator\EmailLexer;
use Egulias\EmailValidator\EmailValidator;

abstract class Parser
{
    protected $warnings = array();
    protected $lexer;
    protected $openedParenthesis = 0;

    public function __construct(EmailLexer $lexer)
    {
        $this->lexer = $lexer;
    }

    public function getWarnings()
    {
        return $this->warnings;
    }

    abstract public function parse($str);

    /** @return int */
    public function getOpenedParenthesis()
    {
        return $this->openedParenthesis;
    }

    /**
     * validateQuotedPair
     */
    protected function validateQuotedPair()
    {
        if (!($this->lexer->token['type'] === EmailLexer::INVALID

            || $this->lexer->token['type'] === EmailLexer::C_DEL)) {
            throw new \InvalidArgumentException('ERR_EXPECTING_QPAIR');
        }

        $this->warnings[] = EmailValidator::DEPREC_QP;
    }

    protected function parseComments()
    {
        $this->openedParenthesis = 1;
        $this->isUnclosedComment();
        $this->warnings[] = EmailValidator::CFWS_COMMENT;
        while (!$this->lexer->isNextToken(EmailLexer::S_CLOSEPARENTHESIS)) {
            if ($this->lexer->isNextToken(EmailLexer::S_OPENPARENTHESIS)) {
                $this->openedParenthesis++;
            }
            $this->warnEscaping();
            $this->lexer->moveNext();
        }

        $this->lexer->moveNext();
        if ($this->lexer->isNextTokenAny(array(EmailLexer::GENERIC, EmailLexer::S_EMPTY))) {
            throw new \InvalidArgumentException('ERR_EXPECTING_ATEXT');
        }

        if ($this->lexer->isNextToken(EmailLexer::S_AT)) {
            $this->warnings[] = EmailValidator::DEPREC_CFWS_NEAR_AT;
        }
    }

    protected function isUnclosedComment()
    {
        try {
            $this->lexer->find(EmailLexer::S_CLOSEPARENTHESIS);
            return true;
        } catch (\RuntimeException $e) {
            throw new \InvalidArgumentException('ERR_UNCLOSEDCOMMENT');
        }
    }

    protected function parseFWS()
    {
        $previous = $this->lexer->getPrevious();

        $this->checkCRLFInFWS();

        if ($this->lexer->token['type'] === EmailLexer::S_CR) {
            throw new \InvalidArgumentException('ERR_CR_NO_LF');
        }

        if ($this->lexer->isNextToken(EmailLexer::GENERIC) && $previous['type']  !== EmailLexer::S_AT) {
            throw new \InvalidArgumentException('ERR_ATEXT_AFTER_CFWS');
        }

        if ($this->lexer->token['type'] === EmailLexer::S_LF || $this->lexer->token['type'] === EmailLexer::C_NUL) {

            throw new \InvalidArgumentException('ERR_EXPECTING_CTEXT');
        }

        if ($this->lexer->isNextToken(EmailLexer::S_AT) || $previous['type']  === EmailLexer::S_AT) {
            $this->warnings[] = EmailValidator::DEPREC_CFWS_NEAR_AT;
        } else {
            $this->warnings[] = EmailValidator::CFWS_FWS;
        }
    }

    protected function checkConsecutiveDots()
    {
        if ($this->lexer->token['type'] === EmailLexer::S_DOT && $this->lexer->isNextToken(EmailLexer::S_DOT)) {

            throw new \InvalidArgumentException('ERR_CONSECUTIVEDOTS');
        }
    }

    protected function isFWS()
    {
        if ($this->escaped()) {
            return false;
        }

        if ($this->lexer->token['type'] === EmailLexer::S_SP ||
            $this->lexer->token['type'] === EmailLexer::S_HTAB ||
            $this->lexer->token['type'] === EmailLexer::S_CR ||
            $this->lexer->token['type'] === EmailLexer::S_LF ||
            $this->lexer->token['type'] === EmailLexer::CRLF
        ) {
            return true;
        }

        return false;
    }

    protected function escaped()
    {
        $previous = $this->lexer->getPrevious();

        if ($previous['type'] === EmailLexer::S_BACKSLASH
            &&
            $this->lexer->token['type'] !== EmailLexer::GENERIC
        ) {
            return true;
        }

        return false;
    }

    protected function warnEscaping()
    {
        if ($this->lexer->token['type'] !== EmailLexer::S_BACKSLASH) {
            return false;
        }

        if ($this->lexer->isNextToken(EmailLexer::GENERIC)) {
            throw new \InvalidArgumentException('ERR_EXPECTING_ATEXT');
        }

        if (!$this->lexer->isNextTokenAny(array(EmailLexer::S_SP, EmailLexer::S_HTAB, EmailLexer::C_DEL))) {
            return false;
        }

        $this->warnings[] = EmailValidator::DEPREC_QP;
        return true;

    }

    protected function checkDQUOTE($hasClosingQuote)
    {
        if ($this->lexer->token['type'] !== EmailLexer::S_DQUOTE) {
            return $hasClosingQuote;
        }
        if ($hasClosingQuote) {
            return $hasClosingQuote;
        }
        $previous = $this->lexer->getPrevious();
        if ($previous['type'] === EmailLexer::GENERIC && $this->lexer->isNextToken(EmailLexer::GENERIC)) {
            throw new \InvalidArgumentException('ERR_EXPECTING_ATEXT');
        }

        $this->warnings[] = EmailValidator::RFC5321_QUOTEDSTRING;
        try {
            $this->lexer->find(EmailLexer::S_DQUOTE);
            $hasClosingQuote = true;
        } catch (\Exception $e) {
            throw new \InvalidArgumentException('ERR_UNCLOSEDQUOTEDSTR');
        }

        return $hasClosingQuote;
    }

    protected function checkCRLFInFWS()
    {
        if ($this->lexer->token['type'] !== EmailLexer::CRLF) {
            return;
        }
        if ($this->lexer->isNextToken(EmailLexer::CRLF)) {
            throw new \InvalidArgumentException('ERR_FWS_CRLF_X2');
        }
        if (!$this->lexer->isNextTokenAny(array(EmailLexer::S_SP, EmailLexer::S_HTAB))) {
            throw new \InvalidArgumentException('ERR_FWS_CRLF_END');
        }
    }
}


1			<?php
2
3			namespace Egulias\EmailValidator\Parser;
4
5			use Egulias\EmailValidator\EmailLexer;
6			use Egulias\EmailValidator\EmailValidator;
7
8			abstract class Parser
9			{
10			protected $warnings = array();
11			protected $lexer;
12			protected $openedParenthesis = 0;
13
14	151		public function __construct(EmailLexer $lexer)
15			{
16	151		$this->lexer = $lexer;
17	151		}
18
19	75		public function getWarnings()
20			{
21	75		return $this->warnings;
22			}
23
24			abstract public function parse($str);
25
26			/** @return int */
27	9		public function getOpenedParenthesis()
28			{
29	9		return $this->openedParenthesis;
30			}
31
32			/**
33			* validateQuotedPair
34			*/
35			protected function validateQuotedPair()
36			{
37		View Code Duplication	if (!($this->lexer->token['type'] === EmailLexer::INVALID
			0 ignored issues – show Duplication introduced 2016-04-28 23:00 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
38			\|\| $this->lexer->token['type'] === EmailLexer::C_DEL)) {
39			throw new \InvalidArgumentException('ERR_EXPECTING_QPAIR');
40			}
41
42			$this->warnings[] = EmailValidator::DEPREC_QP;
43			}
44
45	11		protected function parseComments()
46			{
47	11		$this->openedParenthesis = 1;
48	11		$this->isUnclosedComment();
49	10		$this->warnings[] = EmailValidator::CFWS_COMMENT;
50	10		while (!$this->lexer->isNextToken(EmailLexer::S_CLOSEPARENTHESIS)) {
51	10		if ($this->lexer->isNextToken(EmailLexer::S_OPENPARENTHESIS)) {
52	1		$this->openedParenthesis++;
53	1		}
54	10		$this->warnEscaping();
55	10		$this->lexer->moveNext();
56	10		}
57
58	10		$this->lexer->moveNext();
59	10		if ($this->lexer->isNextTokenAny(array(EmailLexer::GENERIC, EmailLexer::S_EMPTY))) {
60	1		throw new \InvalidArgumentException('ERR_EXPECTING_ATEXT');
61			}
62
63	9		if ($this->lexer->isNextToken(EmailLexer::S_AT)) {
64	2		$this->warnings[] = EmailValidator::DEPREC_CFWS_NEAR_AT;
65	2		}
66	9		}
67
68	14		protected function isUnclosedComment()
69			{
70			try {
71	14		$this->lexer->find(EmailLexer::S_CLOSEPARENTHESIS);
72	12		return true;
73	2		} catch (\RuntimeException $e) {
74	2		throw new \InvalidArgumentException('ERR_UNCLOSEDCOMMENT');
75			}
76			}
77
78	18		protected function parseFWS()
79			{
80	18		$previous = $this->lexer->getPrevious();
81
82	18		$this->checkCRLFInFWS();
83
84	18		if ($this->lexer->token['type'] === EmailLexer::S_CR) {
85	2		throw new \InvalidArgumentException('ERR_CR_NO_LF');
86			}
87
88	16		if ($this->lexer->isNextToken(EmailLexer::GENERIC) && $previous['type'] !== EmailLexer::S_AT) {
89	7		throw new \InvalidArgumentException('ERR_ATEXT_AFTER_CFWS');
90			}
91
92	12	View Code Duplication	if ($this->lexer->token['type'] === EmailLexer::S_LF \|\| $this->lexer->token['type'] === EmailLexer::C_NUL) {
			0 ignored issues – show Duplication introduced 2016-04-28 23:00 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
93			throw new \InvalidArgumentException('ERR_EXPECTING_CTEXT');
94			}
95
96	12		if ($this->lexer->isNextToken(EmailLexer::S_AT) \|\| $previous['type'] === EmailLexer::S_AT) {
97	5		$this->warnings[] = EmailValidator::DEPREC_CFWS_NEAR_AT;
98	5		} else {
99	8		$this->warnings[] = EmailValidator::CFWS_FWS;
100			}
101	12		}
102
103	138		protected function checkConsecutiveDots()
104			{
105	138	View Code Duplication	if ($this->lexer->token['type'] === EmailLexer::S_DOT && $this->lexer->isNextToken(EmailLexer::S_DOT)) {
			0 ignored issues – show Duplication introduced 2016-04-28 23:00 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
106	3		throw new \InvalidArgumentException('ERR_CONSECUTIVEDOTS');
107			}
108	138		}
109
110	132		protected function isFWS()
111			{
112	132		if ($this->escaped()) {
113	2		return false;
114			}
115
116	132		if ($this->lexer->token['type'] === EmailLexer::S_SP \|\|
117	132		$this->lexer->token['type'] === EmailLexer::S_HTAB \|\|
118	132		$this->lexer->token['type'] === EmailLexer::S_CR \|\|
119	132		$this->lexer->token['type'] === EmailLexer::S_LF \|\|
120	132		$this->lexer->token['type'] === EmailLexer::CRLF
121	132		) {
122	18		return true;
123			}
124
125	132		return false;
126			}
127
128	139		protected function escaped()
129			{
130	139		$previous = $this->lexer->getPrevious();
131
132	139		if ($previous['type'] === EmailLexer::S_BACKSLASH
133	139		&&
134	6		$this->lexer->token['type'] !== EmailLexer::GENERIC
135	139		) {
136	5		return true;
137			}
138
139	138		return false;
140			}
141
142	138		protected function warnEscaping()
143			{
144	138		if ($this->lexer->token['type'] !== EmailLexer::S_BACKSLASH) {
145	133		return false;
146			}
147
148	7		if ($this->lexer->isNextToken(EmailLexer::GENERIC)) {
149	6		throw new \InvalidArgumentException('ERR_EXPECTING_ATEXT');
150			}
151
152	1		if (!$this->lexer->isNextTokenAny(array(EmailLexer::S_SP, EmailLexer::S_HTAB, EmailLexer::C_DEL))) {
153			return false;
154			}
155
156	1		$this->warnings[] = EmailValidator::DEPREC_QP;
157	1		return true;
158
159			}
160
161	148		protected function checkDQUOTE($hasClosingQuote)
162			{
163	148		if ($this->lexer->token['type'] !== EmailLexer::S_DQUOTE) {
164	124		return $hasClosingQuote;
165			}
166	25		if ($hasClosingQuote) {
167	1		return $hasClosingQuote;
168			}
169	25		$previous = $this->lexer->getPrevious();
170	25		if ($previous['type'] === EmailLexer::GENERIC && $this->lexer->isNextToken(EmailLexer::GENERIC)) {
171	1		throw new \InvalidArgumentException('ERR_EXPECTING_ATEXT');
172			}
173
174	24		$this->warnings[] = EmailValidator::RFC5321_QUOTEDSTRING;
175			try {
176	24		$this->lexer->find(EmailLexer::S_DQUOTE);
177	23		$hasClosingQuote = true;
178	24		} catch (\Exception $e) {
179	3		throw new \InvalidArgumentException('ERR_UNCLOSEDQUOTEDSTR');
180			}
181
182	23		return $hasClosingQuote;
183			}
184
185	18		protected function checkCRLFInFWS()
186			{
187	18		if ($this->lexer->token['type'] !== EmailLexer::CRLF) {
188	18		return;
189			}
190			if ($this->lexer->isNextToken(EmailLexer::CRLF)) {
191			throw new \InvalidArgumentException('ERR_FWS_CRLF_X2');
192			}
193			if (!$this->lexer->isNextTokenAny(array(EmailLexer::S_SP, EmailLexer::S_HTAB))) {
194			throw new \InvalidArgumentException('ERR_FWS_CRLF_END');
195			}
196			}
197			}
198

egulias / EmailValidator

Push — 1.2 ( cbfe3e...b8bb14 )

Parser::parseFWS() C

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