GSetting 路径名有什么限制？

Question

我在 GSettings 文档中读到：

Key names are restricted to lowercase characters, numbers and '-'. Furthermore, the names must begin with a lowercase character, must not end with a '-', and must not contain consecutive dashes

但是没有关于路径名的注释，其他不包括连续的斜杠 (/)。我的用例是为基于设备的设置生成子目录（从可重定位模式），我想知道我是否应该清理任何字符的字符串。

Answer 1

路径名有条注释，且完整：

Paths must start with and end with a forward slash character ('/') and must not contain two sequential slash characters. Paths should be chosen based on a domain name associated with the program or library to which the settings belong. Examples of paths are "/org/gtk/settings/file-chooser/" and "/ca/desrt/dconf-editor/". Paths should not start with "/apps/", "/desktop/" or "/system/" as they often did in GConf.

（来自 the documentation）。

验证它们的代码如下：

static gboolean
path_is_valid (const gchar *path)
{
  if (!path)
    return FALSE;

  if (path[0] != '/')
    return FALSE;

  if (!g_str_has_suffix (path, "/"))
    return FALSE;

  return strstr (path, "//") == NULL;
}

（来自 gsettings.c）。

所以文档是完整的——它提到了代码检查的所有内容。

根据您的设备的识别方式，您可能确实想要进行一些转义或清理以删除斜杠，以防万一您最终会遇到连续的斜杠。除此之外，如果需要，您只需要清理一些东西，使它们易于阅读和调试。

GSetting 路径名有什么限制？

What are the restrictions on GSetting path names?

glib

gsettings