diff options
Diffstat (limited to 'test/libcxx/localization/locale.categories/__scan_keyword.pass.cpp')
-rw-r--r-- | test/libcxx/localization/locale.categories/__scan_keyword.pass.cpp | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/test/libcxx/localization/locale.categories/__scan_keyword.pass.cpp b/test/libcxx/localization/locale.categories/__scan_keyword.pass.cpp new file mode 100644 index 000000000000..b33aab9a730a --- /dev/null +++ b/test/libcxx/localization/locale.categories/__scan_keyword.pass.cpp @@ -0,0 +1,118 @@ +//===----------------------------------------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is dual licensed under the MIT and the University of Illinois Open +// Source Licenses. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// <locale> + +// Not a portable test + +// __scan_keyword +// Scans [__b, __e) until a match is found in the basic_strings range +// [__kb, __ke) or until it can be shown that there is no match in [__kb, __ke). +// __b will be incremented (visibly), consuming CharT until a match is found +// or proved to not exist. A keyword may be "", in which will match anything. +// If one keyword is a prefix of another, and the next CharT in the input +// might match another keyword, the algorithm will attempt to find the longest +// matching keyword. If the longer matching keyword ends up not matching, then +// no keyword match is found. If no keyword match is found, __ke is returned. +// Else an iterator pointing to the matching keyword is found. If more than +// one keyword matches, an iterator to the first matching keyword is returned. +// If on exit __b == __e, eofbit is set in __err. If __case_sensitive is false, +// __ct is used to force to lower case before comparing characters. +// Examples: +// Keywords: "a", "abb" +// If the input is "a", the first keyword matches and eofbit is set. +// If the input is "abc", no match is found and "ab" are consumed. +// +// template <class _InputIterator, class _ForwardIterator, class _Ctype> +// _ForwardIterator +// __scan_keyword(_InputIterator& __b, _InputIterator __e, +// _ForwardIterator __kb, _ForwardIterator __ke, +// const _Ctype& __ct, ios_base::iostate& __err, +// bool __case_sensitive = true); + +#include <locale> +#include <cassert> + +int main() +{ + const std::ctype<char>& ct = std::use_facet<std::ctype<char> >(std::locale::classic()); + std::ios_base::iostate err = std::ios_base::goodbit; + { + const char input[] = "a"; + const char* in = input; + std::string keys[] = {"a", "abb"}; + err = std::ios_base::goodbit; + std::string* k = std::__scan_keyword(in, input+sizeof(input)-1, + keys, keys+sizeof(keys)/sizeof(keys[0]), + ct, err); + assert(k - keys == 0); + assert(in == input+1); + assert(err == std::ios_base::eofbit); + } + { + const char input[] = "abc"; + const char* in = input; + std::string keys[] = {"a", "abb"}; + err = std::ios_base::goodbit; + std::string* k = std::__scan_keyword(in, input+sizeof(input)-1, + keys, keys+sizeof(keys)/sizeof(keys[0]), + ct, err); + assert(k - keys == 2); + assert(in == input+2); + assert(err == std::ios_base::failbit); + } + { + const char input[] = "abb"; + const char* in = input; + std::string keys[] = {"a", "abb"}; + err = std::ios_base::goodbit; + std::string* k = std::__scan_keyword(in, input+sizeof(input)-1, + keys, keys+sizeof(keys)/sizeof(keys[0]), + ct, err); + assert(k - keys == 1); + assert(in == input+3); + assert(err == std::ios_base::eofbit); + } + { + const char input[] = "Tue "; + const char* in = input; + std::string keys[] = {"Mon", "Monday", "Tue", "Tuesday"}; + err = std::ios_base::goodbit; + std::string* k = std::__scan_keyword(in, input+sizeof(input)-1, + keys, keys+sizeof(keys)/sizeof(keys[0]), + ct, err); + assert(k - keys == 2); + assert(in == input+3); + assert(err == std::ios_base::goodbit); + } + { + const char input[] = "tue "; + const char* in = input; + std::string keys[] = {"Mon", "Monday", "Tue", "Tuesday"}; + err = std::ios_base::goodbit; + std::string* k = std::__scan_keyword(in, input+sizeof(input)-1, + keys, keys+sizeof(keys)/sizeof(keys[0]), + ct, err); + assert(k - keys == 4); + assert(in == input+0); + assert(err == std::ios_base::failbit); + } + { + const char input[] = "tue "; + const char* in = input; + std::string keys[] = {"Mon", "Monday", "Tue", "Tuesday"}; + err = std::ios_base::goodbit; + std::string* k = std::__scan_keyword(in, input+sizeof(input)-1, + keys, keys+sizeof(keys)/sizeof(keys[0]), + ct, err, false); + assert(k - keys == 2); + assert(in == input+3); + assert(err == std::ios_base::goodbit); + } +} |