IRC昵称的pcre表达式? [英] pcre expression for irc nicknames?

问题描述

大家好，我在使用PCRE正确制作irc昵称格式时遇到了一些问题.我对PCRE不太满意，我很喜欢那些使用PCRE/regex的人的一些建议. :)

Hey guys, I'm having a few issues with using PCRE to make a irc nickname format correctly. I'm not good with PCRE, and I'd love some suggestions from those of you who do use PCRE / regex. :)

我当前正在使用以下表达式:/^([^A-Za-z]{1})([^A-Za-z0-9-.]{0,32})$/ 我这样使用它:preg_replace($regex, $replaceWith, $content)

I'm currently using this expression: /^([^A-Za-z]{1})([^A-Za-z0-9-.]{0,32})$/ I'm using it as such: preg_replace($regex, $replaceWith, $content)

我认为这意味着从头到尾，将第一个字符不是A-Z，a-z或0-9的任何字符替换.之后的任何字符(不是A-Z a-z，0-9，-或.)都将替换它.

I assumed this meant, starting from the front to the end, any characters that are not A-Z, a-z, or 0-9 for the first character, replace it. Any characters after that, in which are not A-Z a-z, 0-9, -, or ., replace it.

如果有人可以提供帮助，那么您将大有帮助.这是阻止我将聊天产品发布到新论坛软件的唯一方法. :/

If anyone could help, you would be helping out greatly. It's the only thing stopping me from releasing a chat product to a new forum software. :/

推荐答案

我一直在使用以下正则表达式检查IRC日志中的昵称:

I've been using the following regex to check for nicknames in my IRC logs:

/<([a-zA-Z\[\]\\`_\^\{\|\}][a-zA-Z0-9\[\]\\`_\^\{\|\}-]{1,31})>/

像这样在preg_match中使用它:

using it in a preg_match like so:

preg_match('/<([a-zA-Z\[\]\\`_\^\{\|\}][a-zA-Z0-9\[\]\\`_\^\{\|\}-]{1,31})>/', $line)

我只是检查用户是否在线路上说了些什么，而该线路不仅仅是联接/零件消息或昵称变更或类似的东西，但也很容易将其放入preg_replace中.

I simply check whether a user said something on the line and the line wasn't just a join/part message or nick change or something of the sort, but it would be easy to put it into a preg_replace too.

它根据 RFC 2812第2.3.1节中的昵称规则匹配昵称，表示第一个字符必须是字母(a-zA-Z)或特殊字符([]{}^`|_\)，其余字符可以是字母，特殊字符，数字(0-9)或连字符().我根据GTAnet的NICKLEN=32选择了最大长度为32，而不是RFC的最大长度为9，因为许多网络似乎都不遵循此标准.最大长度因不同的IRC网络而异，因此请根据需要对其进行调整.

It matches the nicks according to the nickname rules in RFC 2812 Section 2.3.1, which state that the first character must be a letter (a-zA-Z) or special ([]{}^`|_\) and the rest of the characters may be letters, special, digits (0-9) or hyphens (-). I chose the max length of 32 based on GTAnet's NICKLEN=32 instead of the RFC's max length of 9, because many networks don't seem to follow this standard. The max length varies between different IRC networks so tweak it as required.

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