TinyButStrong Error CacheSystem plug-in: The cache file './tbscache/cache_search-ruby match / :alpha: /-1.html' can not be saved.
ruby match / :alpha: / :: 哇哇3C日誌

rubymatch/:alpha:/

2021年2月15日—-w-[0-9a-zA-z]willmatchanyalphanumericcharacter-d-[0-9]willmatchanynumberfrom0to9-s-willmatchanywhitespaces(space,tab ...,Thischapterwilldiscusshowtocreateyourowncustomplaceholderstomatchlimitedsetofcharactersandvariousmetacharactersapplicableinsidecharacter ...,2018年8月21日—Hithere,I'mtryingtovalidatealastnameinputinarubystring.I'dexpectthelastnametohaveuppercasealpha,lowercase...

參考資訊如下
A Quick Guide to RegEx in Ruby - Gabriel Demes

2021年2月15日 — -w - [0-9a-zA-z] will match any alphanumeric character -d - [0-9] will match any number from 0 to 9 -s - will match any white spaces (space, tab ...

Character class

This chapter will discuss how to create your own custom placeholders to match limited set of characters and various metacharacters applicable inside character ...

Checking if string has letters and only certain characters

2018年8月21日 — Hi there, I'm trying to validate a last name input in a ruby string. I'd expect the last name to have upper case alpha, lower case alpha,

class Regexp

The -p} construct matches characters with the named property, much like POSIX bracket classes. /-pAlnum}/ - Alphabetic and numeric character. /-pAlpha}/ - ...

Class

The -p} construct matches characters with the named property, much like POSIX bracket classes. /-pAlnum}/ - Alphabetic and numeric character. /-pAlpha}/ - ...

Programming Ruby

A backslash followed by an alphanumeric character is used to introduce ... Well, after every pattern match, Ruby stores a reference to the result ( nil ...

Regex to check alphanumeric string in ruby

2015年10月21日 — Use .match? in Ruby 2.4+. Ruby 2.4 introduced a convenient boolean-returning .match? method. ... Similar to the very efficient regex-ish approach ...

Ruby and Postgres Regular Expression Syntaxes

[:alpha:] [:alpha:] all alphabetic characters. [:blank:] [:blank:] all ... In Ruby, information from the match may be used in any of three ways: as ...

Ruby regex guide

2024年3月21日 — They are just a small sequence of characters. You use them to match or find a specific piece of string for processing and extracting data by ...

Ruby regular expressions

Alpha numeric ([A-Za-z0-9]). [:alpha:] Uppercase and lowercase letters ... Multiline mode: dot matches newlines, ^ and $ both match line starts and endings.