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Diffstat (limited to 'unit/atf-src/tools/text.cpp')
-rw-r--r-- | unit/atf-src/tools/text.cpp | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/unit/atf-src/tools/text.cpp b/unit/atf-src/tools/text.cpp new file mode 100644 index 0000000..9084f7e --- /dev/null +++ b/unit/atf-src/tools/text.cpp @@ -0,0 +1,158 @@ +// +// Automated Testing Framework (atf) +// +// Copyright (c) 2007 The NetBSD Foundation, Inc. +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions +// are met: +// 1. Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// 2. Redistributions in binary form must reproduce the above copyright +// notice, this list of conditions and the following disclaimer in the +// documentation and/or other materials provided with the distribution. +// +// THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND +// CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, +// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. +// IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY +// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE +// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER +// IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR +// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN +// IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// + +extern "C" { +#include <regex.h> +} + +#include <cctype> +#include <cerrno> +#include <cstring> + +#include "exceptions.hpp" +#include "text.hpp" + +namespace impl = tools::text; +#define IMPL_NAME "tools::text" + +char* +impl::duplicate(const char* str) +{ + char* copy = new char[std::strlen(str) + 1]; + std::strcpy(copy, str); + return copy; +} + +bool +impl::match(const std::string& str, const std::string& regex) +{ + bool found; + + // Special case: regcomp does not like empty regular expressions. + if (regex.empty()) { + found = str.empty(); + } else { + ::regex_t preg; + + if (::regcomp(&preg, regex.c_str(), REG_EXTENDED) != 0) + throw std::runtime_error("Invalid regular expression '" + regex + + "'"); + + const int res = ::regexec(&preg, str.c_str(), 0, NULL, 0); + regfree(&preg); + if (res != 0 && res != REG_NOMATCH) + throw std::runtime_error("Invalid regular expression " + regex); + + found = res == 0; + } + + return found; +} + +std::string +impl::to_lower(const std::string& str) +{ + std::string lc; + for (std::string::const_iterator iter = str.begin(); iter != str.end(); + iter++) + lc += std::tolower(*iter); + return lc; +} + +std::vector< std::string > +impl::split(const std::string& str, const std::string& delim) +{ + std::vector< std::string > words; + + std::string::size_type pos = 0, newpos = 0; + while (pos < str.length() && newpos != std::string::npos) { + newpos = str.find(delim, pos); + if (newpos != pos) + words.push_back(str.substr(pos, newpos - pos)); + pos = newpos + delim.length(); + } + + return words; +} + +std::string +impl::trim(const std::string& str) +{ + std::string::size_type pos1 = str.find_first_not_of(" \t"); + std::string::size_type pos2 = str.find_last_not_of(" \t"); + + if (pos1 == std::string::npos && pos2 == std::string::npos) + return ""; + else if (pos1 == std::string::npos) + return str.substr(0, str.length() - pos2); + else if (pos2 == std::string::npos) + return str.substr(pos1); + else + return str.substr(pos1, pos2 - pos1 + 1); +} + +bool +impl::to_bool(const std::string& str) +{ + const std::string lower = to_lower(str); + if (lower == "yes" || lower == "true") + return true; + else if (lower == "no" || lower == "false") + return false; + else { + // XXX Not really a libc error. + throw system_error(IMPL_NAME "::to_bool", "Cannot convert string " + "'" + str + "' to boolean", EINVAL); + } +} + +int64_t +impl::to_bytes(std::string str) +{ + if (str.empty()) + throw std::runtime_error("Empty value"); + + const char unit = str[str.length() - 1]; + int64_t multiplier; + switch (unit) { + case 'k': case 'K': multiplier = 1 << 10; break; + case 'm': case 'M': multiplier = 1 << 20; break; + case 'g': case 'G': multiplier = 1 << 30; break; + case 't': case 'T': multiplier = int64_t(1) << 40; break; + default: + if (!std::isdigit(unit)) + throw std::runtime_error(std::string("Unknown size unit '") + unit + + "'"); + multiplier = 1; + } + if (multiplier != 1) + str.erase(str.length() - 1); + + return to_type< int64_t >(str) * multiplier; +} |