Convert::toCn() - Code Metrics - mucts/money - Measure and Improve Code Quality continuously with Scrutinizer

Convert::toCn() A
last analyzed 2020-05-24 08:14 UTC

↳ Parent: Convert

Complexity

Conditions	2
Paths	2

Size

Total Lines	10
Code Lines	7

Duplication

Lines	0
Ratio	0 %

Importance

Changes	6
Bugs	1	Features	0

Metric	Value
cc	2
eloc	7
c	6
b	1
f	0
nc	2
nop	3
dl	0
loc	10
rs	10

<?php
/**
 * This file is part of the mucts.com.
 *
 * This source file is subject to the MIT license that is bundled
 * with this source code in the file LICENSE.
 *
 * @version 1.0
 * @author herry<[email protected]>
 * @copyright © 2020 MuCTS.com All Rights Reserved.
 */

namespace MuCTS\Money\Chinese;

use Illuminate\Support\Arr;
use MuCTS\Money\Exceptions\InvalidArgumentException;

final class Convert
{
    private const DIGITAL = [
        0 => '零',
        1 => '壹',
        2 => '贰',
        3 => '叁',
        4 => '肆',
        5 => '伍',
        6 => '陆',
        7 => '柒',
        8 => '捌',
        9 => '玖',
    ];

    private const UNIT = [
        -4 => '毫',
        -3 => '厘',
        -2 => '分',
        -1 => '角',
        0 => '元',
        1 => '拾',
        2 => '佰',
        3 => '仟',
        4 => '万',
        8 => '亿',
        12 => '兆',
        16 => '京',
        20 => '垓',
        24 => '杼',
        28 => '穰',
        32 => '沟',
        36 => '涧',
        40 => '正',
        44 => '载',
        48 => '极'
    ];

    private const SYMBOL = [
        '-' => '负',
        '+' => '',
        '' => '整',
        ',' => ''
    ];

    /**
     * 整数部分转换
     *
     * @param int[] $integers
     * @return string
     */
    private static function integerToCn(array $integers): string
    {
        $len = count($integers) - 1;
        return collect($integers)->filter(function ($int, $index) use ($len) {
            return $int > 0 || $index == $len || self::UNIT[$index];
        })->map(function ($int, $index) use ($len) {
            $index = $len - $index;
            return ($int > 0 || $len == 0 ? self::DIGITAL[$int] : '') . (Arr::exists(self::UNIT, $index)
                    ? Arr::get(self::UNIT, $index) : Arr::get(self::UNIT, $index % 4));
        })->implode('');
    }

    /**
     * 小数部分转换
     *
     * @param int[] $decimals
     * @param string|null $default
     * @return string|null
     */
    private static function decimalToCn(array $decimals, ?string $default = null): ?string
    {
        $result = collect($decimals)->filter(function ($int) {
            return $int > 0;
        })->map(function ($int, $index) {
            return self::DIGITAL[$int] . self::UNIT[-1 - $index];
        })->implode('');
        return empty($result) ? $default : $result;
    }

    /**
     * 获取金额大写前缀
     *
     * @param string $amount
     * @param string $cnPrefix
     * @return string
     */
    private static function getCnPrefix(string &$amount, string $cnPrefix): string
    {
        $cnPrefix .= Arr::get(self::SYMBOL, $amount[0], '');
        $amount = preg_replace(sprintf('/[%s]/', implode(array_keys(self::SYMBOL))), '', $amount);
        return $cnPrefix;
    }


    /**
     * 金额转换成中文
     *
     * @param string|int|float $amount
     * @param string $prefix
     * @param string $cnPrefix
     * @return string
     */
    public static function toCn($amount, $prefix = '￥', string $cnPrefix = '人民币'): string
    {
        $amount = strval($amount);
        if (!preg_match(sprintf('/^(%s)?[+\-]?([1-9]\d{0,2}([,]?\d{3}){0,15}|0)(\.\d{0,4})?$/', $prefix), $amount)) {
            throw new InvalidArgumentException(sprintf('%s is not a valid amount number.', $amount));
        }
        $amount = preg_replace(sprintf('/^%s/', $prefix), '', $amount);
        $cnPrefix = self::getCnPrefix($amount, $cnPrefix);
        list($integer, $decimals) = explode('.', $amount . '.0', 2);
        return $cnPrefix . self::integerToCn(str_split($integer)) . strval(self::decimalToCn(str_split($decimals), self::SYMBOL['']));
    }

    /**
     * 中文金额转阿拉伯数字金额
     *
     * @param string $cnAmount
     * @param string $prefix
     * @param string $cnPrefix
     * @return string
     */
    public static function toDigit(string $cnAmount, string $prefix = '￥', string $cnPrefix = '人民币'): string
    {
        $cnAmount = preg_replace(sprintf("/^%s/", $cnPrefix), '', $cnAmount);
        if (empty($cnAmount)) {
            throw new InvalidArgumentException('this\'s not a valid chinese number text');
        }
        $amounts = mb_str_split($cnAmount);
        $isMinus = self::isMinus($amounts);
        Arr::last($amounts) == self::SYMBOL[''] && array_pop($amounts);
        list($digits, $units) = self::cnDecode($amounts);
        if (!empty($amounts) || count($digits) != count($units)) {
            throw new InvalidArgumentException('this\'s not a valid chinese number text');
        }
        return $prefix . self::calculate($digits, $units, $isMinus);
    }

    /**
     * 中文金额解析
     *
     * @param array $amounts
     * @return array[]
     */
    private static function cnDecode(array &$amounts)
    {
        $maxUnit = $unit = 0;
        $digits = $units = [];
        while ($chr = array_pop($amounts)) {
            if (($key = array_search($chr, self::DIGITAL)) !== false) {
                array_push($digits, $key);
                array_push($units, $unit);
            } elseif (($unit = array_search($chr, self::UNIT)) !== false) {
                $maxUnit = max($maxUnit, $unit);
                $unit = $maxUnit > $unit ? $maxUnit + $unit : $unit;
            } else {
                throw new InvalidArgumentException('This\'s not a valid chinese number text');
            }
        }
        return [$digits, $units];
    }

    /**
     * 判断是否是负数
     *
     * @param array $amounts
     * @return bool
     */
    private static function isMinus(array &$amounts): bool
    {
        return !empty($amounts) && $amounts[0] == self::SYMBOL['-'] && array_shift($amounts);
    }

    /**
     * 转换成数字计算
     *
     * @param array $digits
     * @param array $units
     * @param bool $isMinus
     * @return string
     */
    private static function calculate(array $digits, array $units, bool $isMinus = false): string
    {
        $integer = $decimal = 0;
        while (is_int($digit = array_pop($digits)) && is_int($unit = array_pop($units))) {
            if ($unit >= 0) {
                $integer = gmp_add($integer, gmp_mul($digit, gmp_pow(10, $unit)));
            } else {
                $decimal += $digit * (10 ** $unit);
            }
        }
        return gmp_strval(gmp_mul($integer, $isMinus ? -1 : 1)) . ltrim(strval($decimal), '0');
    }
}

1			<?php
2			/**
3			* This file is part of the mucts.com.
4			*
5			* This source file is subject to the MIT license that is bundled
6			* with this source code in the file LICENSE.
7			*
8			* @version 1.0
9			* @author herry<[email protected]>
10			* @copyright © 2020 MuCTS.com All Rights Reserved.
11			*/
12
13			namespace MuCTS\Money\Chinese;
14
15			use Illuminate\Support\Arr;
16			use MuCTS\Money\Exceptions\InvalidArgumentException;
17
18			final class Convert
19			{
20			private const DIGITAL = [
21			0 => '零',
22			1 => '壹',
23			2 => '贰',
24			3 => '叁',
25			4 => '肆',
26			5 => '伍',
27			6 => '陆',
28			7 => '柒',
29			8 => '捌',
30			9 => '玖',
31			];
32
33			private const UNIT = [
34			-4 => '毫',
35			-3 => '厘',
36			-2 => '分',
37			-1 => '角',
38			0 => '元',
39			1 => '拾',
40			2 => '佰',
41			3 => '仟',
42			4 => '万',
43			8 => '亿',
44			12 => '兆',
45			16 => '京',
46			20 => '垓',
47			24 => '杼',
48			28 => '穰',
49			32 => '沟',
50			36 => '涧',
51			40 => '正',
52			44 => '载',
53			48 => '极'
54			];
55
56			private const SYMBOL = [
57			'-' => '负',
58			'+' => '',
59			'' => '整',
60			',' => ''
61			];
62
63			/**
64			* 整数部分转换
65			*
66			* @param int[] $integers
67			* @return string
68			*/
69			private static function integerToCn(array $integers): string
70			{
71			$len = count($integers) - 1;
72			return collect($integers)->filter(function ($int, $index) use ($len) {
73			return $int > 0 \|\| $index == $len \|\| self::UNIT[$index];
74			})->map(function ($int, $index) use ($len) {
75			$index = $len - $index;
76			return ($int > 0 \|\| $len == 0 ? self::DIGITAL[$int] : '') . (Arr::exists(self::UNIT, $index)
77			? Arr::get(self::UNIT, $index) : Arr::get(self::UNIT, $index % 4));
78			})->implode('');
79			}
80
81			/**
82			* 小数部分转换
83			*
84			* @param int[] $decimals
85			* @param string\|null $default
86			* @return string\|null
87			*/
88			private static function decimalToCn(array $decimals, ?string $default = null): ?string
89			{
90			$result = collect($decimals)->filter(function ($int) {
91			return $int > 0;
92			})->map(function ($int, $index) {
93			return self::DIGITAL[$int] . self::UNIT[-1 - $index];
94			})->implode('');
95			return empty($result) ? $default : $result;
96			}
97
98			/**
99			* 获取金额大写前缀
100			*
101			* @param string $amount
102			* @param string $cnPrefix
103			* @return string
104			*/
105			private static function getCnPrefix(string &$amount, string $cnPrefix): string
106			{
107			$cnPrefix .= Arr::get(self::SYMBOL, $amount[0], '');
108			$amount = preg_replace(sprintf('/[%s]/', implode(array_keys(self::SYMBOL))), '', $amount);
109			return $cnPrefix;
110			}
111
112
113			/**
114			* 金额转换成中文
115			*
116			* @param string\|int\|float $amount
117			* @param string $prefix
118			* @param string $cnPrefix
119			* @return string
120			*/
121			public static function toCn($amount, $prefix = '￥', string $cnPrefix = '人民币'): string
122			{
123			$amount = strval($amount);
124			if (!preg_match(sprintf('/^(%s)?[+\-]?([1-9]\d{0,2}([,]?\d{3}){0,15}\|0)(\.\d{0,4})?$/', $prefix), $amount)) {
125			throw new InvalidArgumentException(sprintf('%s is not a valid amount number.', $amount));
126			}
127			$amount = preg_replace(sprintf('/^%s/', $prefix), '', $amount);
128			$cnPrefix = self::getCnPrefix($amount, $cnPrefix);
129			list($integer, $decimals) = explode('.', $amount . '.0', 2);
130			return $cnPrefix . self::integerToCn(str_split($integer)) . strval(self::decimalToCn(str_split($decimals), self::SYMBOL['']));
131			}
132
133			/**
134			* 中文金额转阿拉伯数字金额
135			*
136			* @param string $cnAmount
137			* @param string $prefix
138			* @param string $cnPrefix
139			* @return string
140			*/
141			public static function toDigit(string $cnAmount, string $prefix = '￥', string $cnPrefix = '人民币'): string
142			{
143			$cnAmount = preg_replace(sprintf("/^%s/", $cnPrefix), '', $cnAmount);
144			if (empty($cnAmount)) {
145			throw new InvalidArgumentException('this\'s not a valid chinese number text');
146			}
147			$amounts = mb_str_split($cnAmount);
148			$isMinus = self::isMinus($amounts);
149			Arr::last($amounts) == self::SYMBOL[''] && array_pop($amounts);
150			list($digits, $units) = self::cnDecode($amounts);
151			if (!empty($amounts) \|\| count($digits) != count($units)) {
152			throw new InvalidArgumentException('this\'s not a valid chinese number text');
153			}
154			return $prefix . self::calculate($digits, $units, $isMinus);
155			}
156
157			/**
158			* 中文金额解析
159			*
160			* @param array $amounts
161			* @return array[]
162			*/
163			private static function cnDecode(array &$amounts)
164			{
165			$maxUnit = $unit = 0;
166			$digits = $units = [];
167			while ($chr = array_pop($amounts)) {
168			if (($key = array_search($chr, self::DIGITAL)) !== false) {
169			array_push($digits, $key);
170			array_push($units, $unit);
171			} elseif (($unit = array_search($chr, self::UNIT)) !== false) {
172			$maxUnit = max($maxUnit, $unit);
173			$unit = $maxUnit > $unit ? $maxUnit + $unit : $unit;
174			} else {
175			throw new InvalidArgumentException('This\'s not a valid chinese number text');
176			}
177			}
178			return [$digits, $units];
179			}
180
181			/**
182			* 判断是否是负数
183			*
184			* @param array $amounts
185			* @return bool
186			*/
187			private static function isMinus(array &$amounts): bool
188			{
189			return !empty($amounts) && $amounts[0] == self::SYMBOL['-'] && array_shift($amounts);
190			}
191
192			/**
193			* 转换成数字计算
194			*
195			* @param array $digits
196			* @param array $units
197			* @param bool $isMinus
198			* @return string
199			*/
200			private static function calculate(array $digits, array $units, bool $isMinus = false): string
201			{
202			$integer = $decimal = 0;
203			while (is_int($digit = array_pop($digits)) && is_int($unit = array_pop($units))) {
204			if ($unit >= 0) {
205			$integer = gmp_add($integer, gmp_mul($digit, gmp_pow(10, $unit)));
206			} else {
207			$decimal += $digit * (10 ** $unit);
208			}
209			}
210			return gmp_strval(gmp_mul($integer, $isMinus ? -1 : 1)) . ltrim(strval($decimal), '0');
211			}
212			}

mucts / money

Convert::toCn() A last analyzed 2020-05-24 08:14 UTC

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Convert::toCn() A
last analyzed 2020-05-24 08:14 UTC