我设法实现骆驼情况下转换成词的功能,通过使用这个问题由@ridgerunner建议的解决方案:结合正则表达式分裂驼峰串入的话
Split camelCase word into words with php preg_match (Regular Expression)
不过,我想同时还处理嵌入abreviations这样的:
“hasABREVIATIONEmbedded”转化为“有缩写符号嵌入式”
我想出了这个解决方案:
<?php
function camelCaseToWords($camelCaseStr)
{
// Convert: "TestASAPTestMore" to "TestASAP TestMore"
$abreviationsPattern = '/' . // Match position between UPPERCASE "words"
'(?<=[A-Z])' . // Position is after group of uppercase,
'(?=[A-Z][a-z])' . // and before group of lowercase letters, except the last upper case letter in the group.
'/x';
$arr = preg_split($abreviationsPattern, $camelCaseStr);
$str = implode(' ', $arr);
// Convert "TestASAP TestMore" to "Test ASAP Test More"
$camelCasePattern = '/' . // Match position between camelCase "words".
'(?<=[a-z])' . // Position is after a lowercase,
'(?=[A-Z])' . // and before an uppercase letter.
'/x';
$arr = preg_split($camelCasePattern, $str);
$str = implode(' ', $arr);
$str = ucfirst(trim($str));
return $str;
}
$inputs = array(
'oneTwoThreeFour',
'StartsWithCap',
'hasConsecutiveCAPS',
'ALLCAPS',
'ALL_CAPS_AND_UNDERSCORES',
'hasABREVIATIONEmbedded',
);
echo "INPUT";
foreach($inputs as $val) {
echo "'" . $val . "' translates to '" . camelCaseToWords($val). "'\n";
}
输出是:
INPUT'oneTwoThreeFour' translates to 'One Two Three Four'
'StartsWithCap' translates to 'Starts With Cap'
'hasConsecutiveCAPS' translates to 'Has Consecutive CAPS'
'ALLCAPS' translates to 'ALLCAPS'
'ALL_CAPS_AND_UNDERSCORES' translates to 'ALL_CAPS_AND_UNDERSCORES'
'hasABREVIATIONEmbedded' translates to 'Has ABREVIATION Embedded'
它按预期工作。
我的问题是: 我可以结合2个正则表达式$ abreviationsPattern和camelCasePattern 这样我就可以避开运行使preg_split()函数两次?
为什么当你通过连接并使用PHP注释而不是正则表达式来避免所有空白时使用'x'修饰符? 'x'的缺点是你可以用'#...'注释将你的表达式作为一个多行字符串传入。 –
我没有意识到\ x的含义。我从源代码中复制了模式,并从那里扩展。感谢您的信息。 – stou