LocalPart::parse() - Code Metrics - Inspection of "Starting to change local part parser" - egulias/EmailValidator - Measure and Improve Code Quality continuously with Scrutinizer

Test Setup Failed

Push — 3.0.0-dev ( 442f13...4e7276 )

by Eduardo Gulias

created 2020-04-23 21:52 UTC

LocalPart::parse() C

↳ Parent: LocalPart

Complexity

Conditions	13
Paths	47

Size

Total Lines

Duplication

Lines	12
Ratio	21.82 %

Importance

Changes

Metric	Value
dl	12
loc	55
rs	6.6166
c	0
b	0
f	0
cc	13
nc	47
nop	1

How to fix Long Method Complexity

<?php

namespace Egulias\EmailValidator\Parser;

use Egulias\EmailValidator\Exception\DotAtEnd;
use Egulias\EmailValidator\EmailLexer;
use Egulias\EmailValidator\Exception\ExpectingAT;
use Egulias\EmailValidator\Exception\ExpectingATEXT;
use Egulias\EmailValidator\Exception\UnclosedQuotedString;
use Egulias\EmailValidator\Exception\UnopenedComment;
use Egulias\EmailValidator\Result\InvalidEmail;
use Egulias\EmailValidator\Result\Reason\DotAtStart;
use Egulias\EmailValidator\Result\Result;
use Egulias\EmailValidator\Result\ValidEmail;
use Egulias\EmailValidator\Warning\CFWSWithFWS;
use Egulias\EmailValidator\Warning\LocalTooLong;

class LocalPart extends Parser
{
    public function parse($localPart) : Result
    {
        $parseDQuote = true;
        $closingQuote = false;
        $openedParenthesis = 0;
        $totalLength = 0;

        while ($this->lexer->token['type'] !== EmailLexer::S_AT && null !== $this->lexer->token['type']) {
            if ($this->hasDotAtStart()) {
                return new InvalidEmail(new DotAtStart(), $this->lexer->token['value']);
            }

            $closingQuote = $this->checkDQUOTE($closingQuote);
            if ($closingQuote && $parseDQuote) {
                $parseDQuote = $this->parseDoubleQuote();
            }

            if ($this->lexer->token['type'] === EmailLexer::S_OPENPARENTHESIS) {
                $this->parseComments();
                $openedParenthesis += $this->getOpenedParenthesis();
            }

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

                if ($openedParenthesis === 0) {
                    throw new UnopenedComment();
                }

                $openedParenthesis--;
            }

            $this->checkConsecutiveDots();

            if ($this->lexer->token['type'] === EmailLexer::S_DOT &&

                $this->lexer->isNextToken(EmailLexer::S_AT)
            ) {
                throw new DotAtEnd();
            }

            $this->warnEscaping();
            $this->isInvalidToken($this->lexer->token, $closingQuote);

            if ($this->isFWS()) {
                $this->parseFWS();
            }

            $totalLength += strlen($this->lexer->token['value']);
            $this->lexer->moveNext();
        }

        if ($totalLength > LocalTooLong::LOCAL_PART_LENGTH) {
            $this->warnings[LocalTooLong::CODE] = new LocalTooLong();
        }

        return new ValidEmail();
    }

    protected function hasDotAtStart() : bool
    {
            return $this->lexer->token['type'] === EmailLexer::S_DOT && null === $this->lexer->getPrevious()['type'];
    }

    /**
     * @return bool
     */
    protected function parseDoubleQuote()
    {
        $parseAgain = true;
        $special = array(
            EmailLexer::S_CR => true,
            EmailLexer::S_HTAB => true,
            EmailLexer::S_LF => true
        );

        $invalid = array(
            EmailLexer::C_NUL => true,
            EmailLexer::S_HTAB => true,
            EmailLexer::S_CR => true,
            EmailLexer::S_LF => true
        );
        $setSpecialsWarning = true;

        $this->lexer->moveNext();

        while ($this->lexer->token['type'] !== EmailLexer::S_DQUOTE && null !== $this->lexer->token['type']) {
            $parseAgain = false;
            if (isset($special[$this->lexer->token['type']]) && $setSpecialsWarning) {
                $this->warnings[CFWSWithFWS::CODE] = new CFWSWithFWS();
                $setSpecialsWarning = false;
            }
            if ($this->lexer->token['type'] === EmailLexer::S_BACKSLASH && $this->lexer->isNextToken(EmailLexer::S_DQUOTE)) {

                $this->lexer->moveNext();
            }

            $this->lexer->moveNext();

            if (!$this->escaped() && isset($invalid[$this->lexer->token['type']])) {
                throw new ExpectingATEXT();
            }
        }

        $prev = $this->lexer->getPrevious();

        if ($prev['type'] === EmailLexer::S_BACKSLASH) {
            if (!$this->checkDQUOTE(false)) {
                throw new UnclosedQuotedString();
            }
        }

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

        return $parseAgain;
    }

    /**
     * @param bool $closingQuote
     */
    protected function isInvalidToken(array $token, $closingQuote)
    {
        $forbidden = array(
            EmailLexer::S_COMMA,
            EmailLexer::S_CLOSEBRACKET,
            EmailLexer::S_OPENBRACKET,
            EmailLexer::S_GREATERTHAN,
            EmailLexer::S_LOWERTHAN,
            EmailLexer::S_COLON,
            EmailLexer::S_SEMICOLON,
            EmailLexer::INVALID
        );

        if (in_array($token['type'], $forbidden) && !$closingQuote) {
            throw new ExpectingATEXT();
        }
    }
}


1		<?php
2
3		namespace Egulias\EmailValidator\Parser;
4
5		use Egulias\EmailValidator\Exception\DotAtEnd;
6		use Egulias\EmailValidator\EmailLexer;
7		use Egulias\EmailValidator\Exception\ExpectingAT;
8		use Egulias\EmailValidator\Exception\ExpectingATEXT;
9		use Egulias\EmailValidator\Exception\UnclosedQuotedString;
10		use Egulias\EmailValidator\Exception\UnopenedComment;
11		use Egulias\EmailValidator\Result\InvalidEmail;
12		use Egulias\EmailValidator\Result\Reason\DotAtStart;
13		use Egulias\EmailValidator\Result\Result;
14		use Egulias\EmailValidator\Result\ValidEmail;
15		use Egulias\EmailValidator\Warning\CFWSWithFWS;
16		use Egulias\EmailValidator\Warning\LocalTooLong;
17
18		class LocalPart extends Parser
19		{
20		public function parse($localPart) : Result
21		{
22		$parseDQuote = true;
23		$closingQuote = false;
24		$openedParenthesis = 0;
25		$totalLength = 0;
26
27		while ($this->lexer->token['type'] !== EmailLexer::S_AT && null !== $this->lexer->token['type']) {
28		if ($this->hasDotAtStart()) {
29		return new InvalidEmail(new DotAtStart(), $this->lexer->token['value']);
30		}
31
32		$closingQuote = $this->checkDQUOTE($closingQuote);
33		if ($closingQuote && $parseDQuote) {
34		$parseDQuote = $this->parseDoubleQuote();
35		}
36
37		if ($this->lexer->token['type'] === EmailLexer::S_OPENPARENTHESIS) {
38		$this->parseComments();
39		$openedParenthesis += $this->getOpenedParenthesis();
40		}
41
42	View Code Duplication	if ($this->lexer->token['type'] === EmailLexer::S_CLOSEPARENTHESIS) {
		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...
43		if ($openedParenthesis === 0) {
44		throw new UnopenedComment();
45		}
46
47		$openedParenthesis--;
48		}
49
50		$this->checkConsecutiveDots();
51
52	View Code Duplication	if ($this->lexer->token['type'] === 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...
53		$this->lexer->isNextToken(EmailLexer::S_AT)
54		) {
55		throw new DotAtEnd();
56		}
57
58		$this->warnEscaping();
59		$this->isInvalidToken($this->lexer->token, $closingQuote);
60
61		if ($this->isFWS()) {
62		$this->parseFWS();
63		}
64
65		$totalLength += strlen($this->lexer->token['value']);
66		$this->lexer->moveNext();
67		}
68
69		if ($totalLength > LocalTooLong::LOCAL_PART_LENGTH) {
70		$this->warnings[LocalTooLong::CODE] = new LocalTooLong();
71		}
72
73		return new ValidEmail();
74		}
75
76		protected function hasDotAtStart() : bool
77		{
78		return $this->lexer->token['type'] === EmailLexer::S_DOT && null === $this->lexer->getPrevious()['type'];
79		}
80
81		/**
82		* @return bool
83		*/
84		protected function parseDoubleQuote()
85		{
86		$parseAgain = true;
87		$special = array(
88		EmailLexer::S_CR => true,
89		EmailLexer::S_HTAB => true,
90		EmailLexer::S_LF => true
91		);
92
93		$invalid = array(
94		EmailLexer::C_NUL => true,
95		EmailLexer::S_HTAB => true,
96		EmailLexer::S_CR => true,
97		EmailLexer::S_LF => true
98		);
99		$setSpecialsWarning = true;
100
101		$this->lexer->moveNext();
102
103		while ($this->lexer->token['type'] !== EmailLexer::S_DQUOTE && null !== $this->lexer->token['type']) {
104		$parseAgain = false;
105		if (isset($special[$this->lexer->token['type']]) && $setSpecialsWarning) {
106		$this->warnings[CFWSWithFWS::CODE] = new CFWSWithFWS();
107		$setSpecialsWarning = false;
108		}
109	View Code Duplication	if ($this->lexer->token['type'] === EmailLexer::S_BACKSLASH && $this->lexer->isNextToken(EmailLexer::S_DQUOTE)) {
		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...
110		$this->lexer->moveNext();
111		}
112
113		$this->lexer->moveNext();
114
115		if (!$this->escaped() && isset($invalid[$this->lexer->token['type']])) {
116		throw new ExpectingATEXT();
117		}
118		}
119
120		$prev = $this->lexer->getPrevious();
121
122		if ($prev['type'] === EmailLexer::S_BACKSLASH) {
123		if (!$this->checkDQUOTE(false)) {
124		throw new UnclosedQuotedString();
125		}
126		}
127
128		if (!$this->lexer->isNextToken(EmailLexer::S_AT) && $prev['type'] !== EmailLexer::S_BACKSLASH) {
129		throw new ExpectingAT();
130		}
131
132		return $parseAgain;
133		}
134
135		/**
136		* @param bool $closingQuote
137		*/
138		protected function isInvalidToken(array $token, $closingQuote)
139		{
140		$forbidden = array(
141		EmailLexer::S_COMMA,
142		EmailLexer::S_CLOSEBRACKET,
143		EmailLexer::S_OPENBRACKET,
144		EmailLexer::S_GREATERTHAN,
145		EmailLexer::S_LOWERTHAN,
146		EmailLexer::S_COLON,
147		EmailLexer::S_SEMICOLON,
148		EmailLexer::INVALID
149		);
150
151		if (in_array($token['type'], $forbidden) && !$closingQuote) {
152		throw new ExpectingATEXT();
153		}
154		}
155		}
156

egulias / EmailValidator

Push — 3.0.0-dev ( 442f13...4e7276 )

LocalPart::parse() C

Complexity

Size

Duplication

Importance

How to fix Long Method Complexity

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