Parser::warnEscaping() - Code Metrics - Inspection of "FWS parser" - egulias/EmailValidator - Measure and Improve Code Quality continuously with Scrutinizer

Test Setup Failed

Push — 3.0.0-dev ( 7e0ee1...302b98 )

by Eduardo Gulias

created 2020-05-23 14:22 UTC

Parser::warnEscaping() A

↳ Parent: Parser

Complexity

Conditions	4
Paths	4

Size

Total Lines

Duplication

Lines	3
Ratio	15 %

Importance

Changes

Metric	Value
dl	3
loc	20
rs	9.6
c	0
b	0
f	0
cc	4
nc	4
nop	0

<?php

namespace Egulias\EmailValidator\Parser;

use Egulias\EmailValidator\EmailLexer;
use Egulias\EmailValidator\Exception\AtextAfterCFWS;
use Egulias\EmailValidator\Exception\ConsecutiveDot;
use Egulias\EmailValidator\Exception\CRLFAtTheEnd;
use Egulias\EmailValidator\Exception\CRLFX2;
use Egulias\EmailValidator\Exception\CRNoLF;
use Egulias\EmailValidator\Exception\ExpectingQPair;
use Egulias\EmailValidator\Exception\ExpectingATEXT;
use Egulias\EmailValidator\Exception\ExpectingCTEXT;
use Egulias\EmailValidator\Exception\UnclosedComment;
use Egulias\EmailValidator\Result\InvalidEmail;
use Egulias\EmailValidator\Result\Reason\ExpectingATEXT as ReasonExpectingATEXT;
use Egulias\EmailValidator\Result\Result;
use Egulias\EmailValidator\Result\ValidEmail;
use Egulias\EmailValidator\Warning\CFWSNearAt;
use Egulias\EmailValidator\Warning\CFWSWithFWS;
use Egulias\EmailValidator\Warning\Comment;
.
|-- OtherDir
|   |-- Bar.php
|   `-- Foo.php
`-- SomeDir
    `-- Foo.php
use Egulias\EmailValidator\Warning\QuotedPart;

abstract class Parser
{
    /**
     * @var \Egulias\EmailValidator\Warning\Warning[]
     */
    protected $warnings = [];

    /**
     * @var EmailLexer
     */
    protected $lexer;

    /**
     * @var int
     */
    protected $openedParenthesis = 0;

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

    /**
     * @return \Egulias\EmailValidator\Warning\Warning[]
     */
    public function getWarnings()
    {
        return $this->warnings;
    }

    /**
     * @param string $str
     */
    abstract public function parse($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 ExpectingQPair();
        }

        $this->warnings[QuotedPart::CODE] =
            new QuotedPart($this->lexer->getPrevious()['type'], $this->lexer->token['type']);
    }

    protected function parseComments()
    {
        $this->openedParenthesis = 1;
        $this->isUnclosedComment();
        $this->warnings[Comment::CODE] = new Comment();
        while (!$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 ExpectingATEXT();
        }

        if ($this->lexer->isNextToken(EmailLexer::S_AT)) {
            $this->warnings[CFWSNearAt::CODE] = new CFWSNearAt();
        }
    }

    /**
     * @return bool
     */
    protected function isUnclosedComment()
    {
        try {
            $this->lexer->find(EmailLexer::S_CLOSEPARENTHESIS);
            return true;
        } catch (\RuntimeException $e) {
            throw new UnclosedComment();
        }
    }

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

        $this->checkCRLFInFWS();

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

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

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

            throw new ExpectingCTEXT();
        }

        if ($this->lexer->isNextToken(EmailLexer::S_AT) || $previous['type']  === EmailLexer::S_AT) {

            $this->warnings[CFWSNearAt::CODE] = new CFWSNearAt();
        } else {
            $this->warnings[CFWSWithFWS::CODE] = new CFWSWithFWS();
        }
    }

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

            throw new ConsecutiveDot();
        }
    }

    /**
     * @return bool
     */
    protected function isFWS()

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

        return $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 bool
     */
    protected function escaped()

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

        return $previous && $previous['type'] === EmailLexer::S_BACKSLASH

            &&
            $this->lexer->token['type'] !== EmailLexer::GENERIC;
    }

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

        if ($this->lexer->isNextToken(EmailLexer::GENERIC)) {
            throw new ExpectingATEXT();
        }

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

            return false;
        }

        $this->warnings[QuotedPart::CODE] =
            new QuotedPart($this->lexer->getPrevious()['type'], $this->lexer->token['type']);
        return true;

    }

    protected function validateEscaping() : Result
    {
        //Backslash found
        if ($this->lexer->token['type'] !== EmailLexer::S_BACKSLASH) {
            return new ValidEmail();
        }

        if ($this->lexer->isNextToken(EmailLexer::GENERIC)) {
            return new InvalidEmail(new ReasonExpectingATEXT('Found ATOM after escaping'), $this->lexer->token['value']);
        }

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

            return new ValidEmail();
        }

        $this->warnings[QuotedPart::CODE] =
            new QuotedPart($this->lexer->getPrevious()['type'], $this->lexer->token['type']);

        return new ValidEmail();

    }

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

        if (!$this->lexer->isNextTokenAny(array(EmailLexer::S_SP, EmailLexer::S_HTAB))) {
            throw new CRLFX2();
        }

        if (!$this->lexer->isNextTokenAny(array(EmailLexer::S_SP, EmailLexer::S_HTAB))) {
            throw new CRLFAtTheEnd();
        }
    }
}


1		<?php
2
3		namespace Egulias\EmailValidator\Parser;
4
5		use Egulias\EmailValidator\EmailLexer;
6		use Egulias\EmailValidator\Exception\AtextAfterCFWS;
7		use Egulias\EmailValidator\Exception\ConsecutiveDot;
8		use Egulias\EmailValidator\Exception\CRLFAtTheEnd;
9		use Egulias\EmailValidator\Exception\CRLFX2;
10		use Egulias\EmailValidator\Exception\CRNoLF;
11		use Egulias\EmailValidator\Exception\ExpectingQPair;
12		use Egulias\EmailValidator\Exception\ExpectingATEXT;
13		use Egulias\EmailValidator\Exception\ExpectingCTEXT;
14		use Egulias\EmailValidator\Exception\UnclosedComment;
15		use Egulias\EmailValidator\Result\InvalidEmail;
16		use Egulias\EmailValidator\Result\Reason\ExpectingATEXT as ReasonExpectingATEXT;
17		use Egulias\EmailValidator\Result\Result;
18		use Egulias\EmailValidator\Result\ValidEmail;
19		use Egulias\EmailValidator\Warning\CFWSNearAt;
20		use Egulias\EmailValidator\Warning\CFWSWithFWS;
21		use Egulias\EmailValidator\Warning\Comment;
		0 ignored issues – show Bug introduced 2020-05-15 21:07 UTC by Report Bug Copy Issue Report This use statement conflicts with another class in this namespace, `Egulias\EmailValidator\Parser\Comment`. Let’s assume that you have a directory layout like this: . \|-- OtherDir \| \|-- Bar.php \| `-- Foo.php `-- SomeDir `-- Foo.php and let’s assume the following content of `Bar.php`: // Bar.php namespace OtherDir; use SomeDir\Foo; // This now conflicts the class OtherDir\Foo If both files `OtherDir/Foo.php` and `SomeDir/Foo.php` are loaded in the same runtime, you will see a PHP error such as the following: PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php However, as `OtherDir/Foo.php` does not necessarily have to be loaded and the error is only triggered if it is loaded before `OtherDir/Bar.php`, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: // Bar.php namespace OtherDir; use SomeDir\Foo as SomeDirFoo; // There is no conflict anymore. Loading history...
22		use Egulias\EmailValidator\Warning\QuotedPart;
23
24		abstract class Parser
25		{
26		/**
27		* @var \Egulias\EmailValidator\Warning\Warning[]
28		*/
29		protected $warnings = [];
30
31		/**
32		* @var EmailLexer
33		*/
34		protected $lexer;
35
36		/**
37		* @var int
38		*/
39		protected $openedParenthesis = 0;
40
41		public function __construct(EmailLexer $lexer)
42		{
43		$this->lexer = $lexer;
44		}
45
46		/**
47		* @return \Egulias\EmailValidator\Warning\Warning[]
48		*/
49		public function getWarnings()
50		{
51		return $this->warnings;
52		}
53
54		/**
55		* @param string $str
56		*/
57		abstract public function parse($str);
58
59		/** @return int */
60		public function getOpenedParenthesis()
61		{
62		return $this->openedParenthesis;
63		}
64
65		/**
66		* validateQuotedPair
67		*/
68		protected function validateQuotedPair()
69		{
70	View Code Duplication	if (!($this->lexer->token['type'] === EmailLexer::INVALID
		0 ignored issues – show Duplication introduced 2016-05-07 13:54 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...
71		\|\| $this->lexer->token['type'] === EmailLexer::C_DEL)) {
72		throw new ExpectingQPair();
73		}
74
75		$this->warnings[QuotedPart::CODE] =
76		new QuotedPart($this->lexer->getPrevious()['type'], $this->lexer->token['type']);
77		}
78
79		protected function parseComments()
80		{
81		$this->openedParenthesis = 1;
82		$this->isUnclosedComment();
83		$this->warnings[Comment::CODE] = new Comment();
84		while (!$this->lexer->isNextToken(EmailLexer::S_CLOSEPARENTHESIS)) {
85		if ($this->lexer->isNextToken(EmailLexer::S_OPENPARENTHESIS)) {
86		$this->openedParenthesis++;
87		}
88		$this->warnEscaping();
89		$this->lexer->moveNext();
90		}
91
92		$this->lexer->moveNext();
93		if ($this->lexer->isNextTokenAny(array(EmailLexer::GENERIC, EmailLexer::S_EMPTY))) {
94		throw new ExpectingATEXT();
95		}
96
97		if ($this->lexer->isNextToken(EmailLexer::S_AT)) {
98		$this->warnings[CFWSNearAt::CODE] = new CFWSNearAt();
99		}
100		}
101
102		/**
103		* @return bool
104		*/
105		protected function isUnclosedComment()
106		{
107		try {
108		$this->lexer->find(EmailLexer::S_CLOSEPARENTHESIS);
109		return true;
110		} catch (\RuntimeException $e) {
111		throw new UnclosedComment();
112		}
113		}
114
115		protected function parseFWS()
116		{
117		$previous = $this->lexer->getPrevious();
118
119		$this->checkCRLFInFWS();
120
121		if ($this->lexer->token['type'] === EmailLexer::S_CR) {
122		throw new CRNoLF();
123		}
124
125		if ($this->lexer->isNextToken(EmailLexer::GENERIC) && $previous['type'] !== EmailLexer::S_AT) {
126		throw new AtextAfterCFWS();
127		}
128
129	View Code Duplication	if ($this->lexer->token['type'] === EmailLexer::S_LF \|\| $this->lexer->token['type'] === EmailLexer::C_NUL) {
		0 ignored issues – show Duplication introduced 2016-04-28 23:00 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
130		throw new ExpectingCTEXT();
131		}
132
133	View Code Duplication	if ($this->lexer->isNextToken(EmailLexer::S_AT) \|\| $previous['type'] === EmailLexer::S_AT) {
		0 ignored issues – show Duplication introduced 2020-05-23 14:23 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...
134		$this->warnings[CFWSNearAt::CODE] = new CFWSNearAt();
135		} else {
136		$this->warnings[CFWSWithFWS::CODE] = new CFWSWithFWS();
137		}
138		}
139
140		protected function checkConsecutiveDots()
141		{
142	View Code Duplication	if ($this->lexer->token['type'] === EmailLexer::S_DOT && $this->lexer->isNextToken(EmailLexer::S_DOT)) {
		0 ignored issues – show Duplication introduced 2016-05-07 13:54 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
143		throw new ConsecutiveDot();
144		}
145		}
146
147		/**
148		* @return bool
149		*/
150	View Code Duplication	protected function isFWS()
		0 ignored issues – show Duplication introduced 2020-05-23 14:23 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
151		{
152		if ($this->escaped()) {
153		return false;
154		}
155
156		return $this->lexer->token['type'] === EmailLexer::S_SP \|\|
157		$this->lexer->token['type'] === EmailLexer::S_HTAB \|\|
158		$this->lexer->token['type'] === EmailLexer::S_CR \|\|
159		$this->lexer->token['type'] === EmailLexer::S_LF \|\|
160		$this->lexer->token['type'] === EmailLexer::CRLF;
161		}
162
163		/**
164		* @return bool
165		*/
166	View Code Duplication	protected function escaped()
		0 ignored issues – show Duplication introduced 2020-05-23 14:23 UTC by Report Bug Copy Issue Report This method seems to be duplicated in 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...
167		{
168		$previous = $this->lexer->getPrevious();
169
170		return $previous && $previous['type'] === EmailLexer::S_BACKSLASH
		0 ignored issues – show Bug Best Practice introduced 2020-05-23 14:23 UTC by Report Bug Copy Issue Report The expression `$previous` of type `array` is implicitly converted to a boolean; are you sure this is intended? If so, consider using `! empty($expr)` instead to make it clear that you intend to check for an array without elements. This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent. Consider making the comparison explicit by using `empty(..)` or `! empty(...)` instead. Loading history...
171		&&
172		$this->lexer->token['type'] !== EmailLexer::GENERIC;
173		}
174
175		/**
176		* @return bool
177		*/
178		protected function warnEscaping() : bool
179		{
180		//Backslash found
181		if ($this->lexer->token['type'] !== EmailLexer::S_BACKSLASH) {
182		return false;
183		}
184
185		if ($this->lexer->isNextToken(EmailLexer::GENERIC)) {
186		throw new ExpectingATEXT();
187		}
188
189	View Code Duplication	if (!$this->lexer->isNextTokenAny(array(EmailLexer::S_SP, EmailLexer::S_HTAB, EmailLexer::C_DEL))) {
		0 ignored issues – show Duplication introduced 2020-05-23 14:23 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...
190		return false;
191		}
192
193		$this->warnings[QuotedPart::CODE] =
194		new QuotedPart($this->lexer->getPrevious()['type'], $this->lexer->token['type']);
195		return true;
196
197		}
198
199		protected function validateEscaping() : Result
200		{
201		//Backslash found
202		if ($this->lexer->token['type'] !== EmailLexer::S_BACKSLASH) {
203		return new ValidEmail();
204		}
205
206		if ($this->lexer->isNextToken(EmailLexer::GENERIC)) {
207		return new InvalidEmail(new ReasonExpectingATEXT('Found ATOM after escaping'), $this->lexer->token['value']);
208		}
209
210	View Code Duplication	if (!$this->lexer->isNextTokenAny(array(EmailLexer::S_SP, EmailLexer::S_HTAB, EmailLexer::C_DEL))) {
		0 ignored issues – show Duplication introduced 2020-05-23 14:23 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...
211		return new ValidEmail();
212		}
213
214		$this->warnings[QuotedPart::CODE] =
215		new QuotedPart($this->lexer->getPrevious()['type'], $this->lexer->token['type']);
216
217		return new ValidEmail();
218
219		}
220
221		protected function checkCRLFInFWS()
222		{
223		if ($this->lexer->token['type'] !== EmailLexer::CRLF) {
224		return;
225		}
226
227		if (!$this->lexer->isNextTokenAny(array(EmailLexer::S_SP, EmailLexer::S_HTAB))) {
228		throw new CRLFX2();
229		}
230
231		if (!$this->lexer->isNextTokenAny(array(EmailLexer::S_SP, EmailLexer::S_HTAB))) {
232		throw new CRLFAtTheEnd();
233		}
234		}
235		}
236

egulias / EmailValidator

Push — 3.0.0-dev ( 7e0ee1...302b98 )

Parser::warnEscaping() A

Complexity

Size

Duplication

Importance

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