可以通过在前面加反斜杠如\ .对这些字符进行转义，以匹配文字句点。
These can be escaped by being preceded with a backslash, like \. To match a literal period.
在俾路支，达罗毗语被称为布拉灰，如果关于达罗毗的假说成立，那么我们就可以将泰米尔那多地区一种古老形式的泰米尔语——达罗毗语的一支与古印度河文字进行匹配，进行破译。
If theDravidian hypothesis is correct, it might be possible to match wordsfrom the old form of Tamil, a Dravidian language spoken in Tamil Nadu, with the Indus signs.
WC产品语法意味着，文字字符必须跟在a之后，但不在匹配中使用。
The... WC production syntax means that a word character must follow the a, but will not be consumed in the match.
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