pascalcasing

I'm about to write a parser for a language that's supposed to have strict syntactic rules about naming of types, variables and such. For example all classes must be PascalCase, and all variables/parameter names and other identifiers must be camelCase. For example HTMLParser is not allowed and must be named HtmlParser . Any ideas for a regexp that can match something that is PascalCase, but does not have two capital letters in it? camelCase: ^[a-z]+(?:[A-Z][a-z]+)*$ PascalCase: ^[A-Z][a-z]+(?:[A-Z][a-z]+)*$ /([A-Z][a-z]+)*[A-Z][a-z]*/ But I have to say your naming choice stinks, HTMLParser

I read that it is best practise to have table names in Pascal Case (ThisIsMyTableName). Therefor I would like to change my tables in MySQL. But neither phpmyadmin, nore SQL Manager 2005 for MySQL will let me. The names stay to appear in lowercase, as if I didn't to a change at all. Any suggestions to solve this problem? I advice against mixed case because of problems with case sensitivity. A fully tested solution on one platform where case doesn't matter may actually fail when deployed on a platform where case DOES matter. For that reason alone I suggest sticking with either all caps or all

If I had: $string = "PascalCase"; I need "pascal_case" Does PHP offer a function for this purpose? Try this on for size: $tests = array( 'simpleTest' => 'simple_test', 'easy' => 'easy', 'HTML' => 'html', 'simpleXML' => 'simple_xml', 'PDFLoad' => 'pdf_load', 'startMIDDLELast' => 'start_middle_last', 'AString' => 'a_string', 'Some4Numbers234' => 'some4_numbers234', 'TEST123String' => 'test123_string', ); foreach ($tests as $test => $result) { $output = from_camel_case($test); if ($output === $result) { echo "Pass: $test => $result\n"; } else { echo "Fail: $test => $result [$output]\n"; } }

How do I go from this string: "ThisIsMyCapsDelimitedString" ...to this string: "This Is My Caps Delimited String" Fewest lines of code in VB.net is preferred but C# is also welcome. Cheers! I made this a while ago. It matches each component of a CamelCase name. /([A-Z]+(?=$|[A-Z][a-z])|[A-Z]?[a-z]+)/g For example: "SimpleHTTPServer" => ["Simple", "HTTP", "Server"] "camelCase" => ["camel", "Case"] To convert that to just insert spaces between the words: Regex.Replace(s, "([a-z](?=[A-Z])|[A-Z](?=[A-Z][a-z]))", "$1 ") If you need to handle digits: /([A-Z]+(?=$|[A-Z][a-z]|[0-9])|[A-Z]?[a-z]+|[0-9]