Symfony2路由要求:如何启用UTF-8模式? [英] Symfony2 Routing Requirements: how to enable UTF-8 mode?

问题描述

我想使用以下正则表达式作为symfony2路由的要求:

I want to use the following regex as an requirement for symfony2 routing:

/^[ \x{00C0}-\x{01FF}a-zA-Z'\-]+$/u

这里的特别之处是启用带有u-修饰符的utf8模式.如何将此/u传递到symfony routing.yml的需求部分?

The special thing here is to enable the utf8-mode with the u-modifier at the end. How to pass this /u to requirement-section of a symfony routing.yml?

我们当前的routing.yml如下所示:

Our current routing.yml looks like that:

search_by_name:
    path:     /search/name/{name}-4/{page}/{limit}
    defaults: { _controller: SearchBundle:SearchByName:index, page: 0, limit: 8 }
    requirements:
        name: "[äüößÄÖÜ´\"`èéa-zA-Z\-]+"

现在我们要应用上述模式:

Now we want to apply the pattern mentioned above:

    requirements:
        name: "[ \x{00C0}-\x{01FF}a-zA-Z'\-]+"  <-- "u" is missing

在哪里传递"u"?仅在末尾添加字符会导致以下错误:

Where to pass the "u"? Just adding the character at the end will result in the following error:

警告:preg_match():编译失败:\ x {...}中的字符值 序列在偏移量61处太大

Warning: preg_match(): Compilation failed: character value in \x{...} sequence is too large at offset 61

推荐答案

Symfony Routing组件不完全支持Unicode；基本上是因为它在内部不使用多字节安全的字符串函数.使用此类标志时，可能会发生意外问题.

The Symfony Routing component doesn't support fully Unicode ; basically because it doesn't use multibyte-safe string functions internally. Unexpected issues can occurs when using such flags.

该组件在Unicode支持方面的进展在以下问题中得到跟踪: https://github.com. com/symfony/symfony/issues/5236

Progress in Unicode support in the component is tracked in the following issue: https://github.com/symfony/symfony/issues/5236

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