From 596fdab71b8bd116e20e33647d68f1d7a567696e Mon Sep 17 00:00:00 2001 From: Andreas Stöckel Date: Mon, 2 Mar 2015 00:34:15 +0100 Subject: Wrote isUserDefinedToken function which checks whether a token is a valid user defined token and added unit tests --- src/core/common/Utils.cpp | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'src/core/common/Utils.cpp') diff --git a/src/core/common/Utils.cpp b/src/core/common/Utils.cpp index 85d2c28..219b437 100644 --- a/src/core/common/Utils.cpp +++ b/src/core/common/Utils.cpp @@ -118,5 +118,29 @@ bool Utils::endsWith(const std::string &s, const std::string &suffix) return suffix.size() <= s.size() && s.substr(s.size() - suffix.size(), suffix.size()) == suffix; } + +bool Utils::isUserDefinedToken(const std::string &token) +{ + // Make sure the token meets is neither empty, nor starts or ends with an + // alphanumeric character + const size_t len = token.size(); + if (len == 0 || isAlphanumeric(token[0]) || isAlphanumeric(token[len - 1])) { + return false; + } + + // Make sure the token is not any special OSML token + if (token == "\\" || token == "%" || token == "%{" || token == "}%" || + token == "{!" || token == "<\\" || token == "\\>") { + return false; + } + + // Make sure the token contains other characters but { and } + for (char c: token) { + if (c != '{' && c != '}') { + return true; + } + } + return false; +} } -- cgit v1.2.3