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| author | chriseth <chris@ethereum.org> | 2018-10-16 23:58:17 +0800 |
|---|---|---|
| committer | chriseth <chris@ethereum.org> | 2018-10-22 21:52:26 +0800 |
| commit | 19be6cd818e4bb1a49325d8bfea7f7727d85c933 (patch) | |
| tree | fae4f0c8bb4ca4c32ede677466a6a8cfc2965fee /libdevcore | |
| parent | c13b5280c1b44f18a2a1fb61ef5556e91c5678e7 (diff) | |
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Some well-formedness checks for the Yul AST.
Diffstat (limited to 'libdevcore')
| -rw-r--r-- | libdevcore/CommonData.cpp | 23 | ||||
| -rw-r--r-- | libdevcore/CommonData.h | 3 |
2 files changed, 26 insertions, 0 deletions
diff --git a/libdevcore/CommonData.cpp b/libdevcore/CommonData.cpp index 6d7c74d7..fa1a5353 100644 --- a/libdevcore/CommonData.cpp +++ b/libdevcore/CommonData.cpp @@ -110,3 +110,26 @@ string dev::getChecksummedAddress(string const& _addr) } return ret; } + +bool dev::isValidHex(string const& _string) +{ + if (_string.substr(0, 2) != "0x") + return false; + if (_string.find_first_not_of("0123456789abcdefABCDEF", 2) != string::npos) + return false; + return true; +} + +bool dev::isValidDecimal(string const& _string) +{ + if (_string.empty()) + return false; + if (_string == "0") + return true; + // No leading zeros + if (_string.front() == '0') + return false; + if (_string.find_first_not_of("0123456789") != string::npos) + return false; + return true; +} diff --git a/libdevcore/CommonData.h b/libdevcore/CommonData.h index f208c425..0782fabc 100644 --- a/libdevcore/CommonData.h +++ b/libdevcore/CommonData.h @@ -272,4 +272,7 @@ bool passesAddressChecksum(std::string const& _str, bool _strict); /// @param hex strings that look like an address std::string getChecksummedAddress(std::string const& _addr); +bool isValidHex(std::string const& _string); +bool isValidDecimal(std::string const& _string); + } |