如何在TCL中使用proc编写正则表达式来处理以下模式？

发布于 2024-08-30 18:32:05 字数 213 浏览 5 评论 0原文

我是 TCL 新手，寻求帮助来处理以下表达式。我从用户那里获取 i/p 字符串来验证下面的任何字符串 & CLI 使用过程中的一行中没有其他字符

{ GHI GII GJI GKI}

，另一个棘手的问题是编写正则表达式以仅匹配以字母 A & 开头的字符。以 B 结尾，在使用过程之间还有 1 个或多个 YO 或 OY。谢谢

原文

I am new to TCL and seeking a help to deal with the following expression.
I am getting the i/p string from the user to validate any of these strings below & no others in a line in CLI using procedure

{ GHI GII GJI GKI}

and another tricky one is to write regexp to match only the characters which begin with alphabet A & end with B, It also have 1 or more of either YO or OY in between using procedure.
Thank you

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ヤ经典坏疍 2024-09-06 18:32:05

如果这是您的输入，那么实际上不需要使用正则表达式：只需检查提供的单词是否在该列表中：

set input { GHI GII GJI GKI}
foreach word {GJI GLI} {
    if {$word in $input} {
        puts "$word is in [list $input]"
    } else {
        puts "$word is not in [list $input]"
    }
}

匹配“以字母 A 开头并以 B 结尾，它还有 1 个或多个 YO或 OY 之间”：

set re {^A(?:YO|OY)+B$}
foreach word {AYOB AYOOYB AYYB} {
    if {[regexp $re $word]} {
        puts "$word matches"
    } else {
        puts "$word does not match"
    }
}

如果您的意思是“（1 个或多个 YO）或（1 个或多个 OY），则正则表达式为

set re {^A(?:(?:YO)+|(?:OY)+)B$}

If that's your input, then really there's no need to use regular expressions: just check that a supplied word is in that list:

set input { GHI GII GJI GKI}
foreach word {GJI GLI} {
    if {$word in $input} {
        puts "$word is in [list $input]"
    } else {
        puts "$word is not in [list $input]"
    }
}

A regex that matches "begin with alphabet A & end with B, It also have 1 or more of either YO or OY in between":

set re {^A(?:YO|OY)+B$}
foreach word {AYOB AYOOYB AYYB} {
    if {[regexp $re $word]} {
        puts "$word matches"
    } else {
        puts "$word does not match"
    }
}

If you mean "either (1 or more of YO) or (1 or more of OY), then the regex is