This regex patterns allows to parse rinex 2 filesnames/filepath it follows the directory structure usually found on FTP servers from main GNSS CORS stations networks / monitoring organizations (e.g. ftp://rgpdata.ign.fr/pub/data)

验证阿拉伯数字金额 "-999999999 ~ 999999999" ,小数点后面保留2位

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Java variables declaration

The is helpful for parsing the symbolic reference of a PHP class object for validation or just determining the type and target for the operator. The expression is intended for working with classes and class methods, so the value on the right of the Paamayim Nekudotayim :: will alway be regarded as ...