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Diffstat (limited to 'libs/assimp/include/assimp/ParsingUtils.h')
| -rw-r--r-- | libs/assimp/include/assimp/ParsingUtils.h | 272 |
1 files changed, 272 insertions, 0 deletions
diff --git a/libs/assimp/include/assimp/ParsingUtils.h b/libs/assimp/include/assimp/ParsingUtils.h new file mode 100644 index 0000000..b08f232 --- /dev/null +++ b/libs/assimp/include/assimp/ParsingUtils.h @@ -0,0 +1,272 @@ +/* +Open Asset Import Library (assimp) +---------------------------------------------------------------------- + +Copyright (c) 2006-2022, assimp team + +All rights reserved. + +Redistribution and use of this software in source and binary forms, +with or without modification, are permitted provided that the +following conditions are met: + +* Redistributions of source code must retain the above + copyright notice, this list of conditions and the + following disclaimer. + +* 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. + +* Neither the name of the assimp team, nor the names of its + contributors may be used to endorse or promote products + derived from this software without specific prior + written permission of the assimp team. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT +OWNER 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. + +---------------------------------------------------------------------- +*/ + +/** @file ParsingUtils.h + * @brief Defines helper functions for text parsing + */ +#pragma once +#ifndef AI_PARSING_UTILS_H_INC +#define AI_PARSING_UTILS_H_INC + +#ifdef __GNUC__ +#pragma GCC system_header +#endif + +#include <assimp/StringComparison.h> +#include <assimp/StringUtils.h> +#include <assimp/defs.h> + +#include <vector> +#include <algorithm> + +namespace Assimp { + +// NOTE: the functions below are mostly intended as replacement for +// std::upper, std::lower, std::isupper, std::islower, std::isspace. +// we don't bother of locales. We don't want them. We want reliable +// (i.e. identical) results across all locales. + +// The functions below accept any character type, but know only +// about ASCII. However, UTF-32 is the only safe ASCII superset to +// use since it doesn't have multi-byte sequences. + +static const unsigned int BufferSize = 4096; + + +// --------------------------------------------------------------------------------- +template <class char_t> +AI_FORCE_INLINE bool IsUpper(char_t in) { + return (in >= (char_t)'A' && in <= (char_t)'Z'); +} + +// --------------------------------------------------------------------------------- +template <class char_t> +AI_FORCE_INLINE bool IsLower(char_t in) { + return (in >= (char_t)'a' && in <= (char_t)'z'); +} + +// --------------------------------------------------------------------------------- +template <class char_t> +AI_FORCE_INLINE bool IsSpace(char_t in) { + return (in == (char_t)' ' || in == (char_t)'\t'); +} + +// --------------------------------------------------------------------------------- +template <class char_t> +AI_FORCE_INLINE bool IsLineEnd(char_t in) { + return (in == (char_t)'\r' || in == (char_t)'\n' || in == (char_t)'\0' || in == (char_t)'\f'); +} + +// --------------------------------------------------------------------------------- +template <class char_t> +AI_FORCE_INLINE bool IsSpaceOrNewLine(char_t in) { + return IsSpace<char_t>(in) || IsLineEnd<char_t>(in); +} + +// --------------------------------------------------------------------------------- +template <class char_t> +AI_FORCE_INLINE bool SkipSpaces(const char_t *in, const char_t **out) { + while (*in == (char_t)' ' || *in == (char_t)'\t') { + ++in; + } + *out = in; + return !IsLineEnd<char_t>(*in); +} + +// --------------------------------------------------------------------------------- +template <class char_t> +AI_FORCE_INLINE bool SkipSpaces(const char_t **inout) { + return SkipSpaces<char_t>(*inout, inout); +} + +// --------------------------------------------------------------------------------- +template <class char_t> +AI_FORCE_INLINE bool SkipLine(const char_t *in, const char_t **out) { + while (*in != (char_t)'\r' && *in != (char_t)'\n' && *in != (char_t)'\0') { + ++in; + } + + // files are opened in binary mode. Ergo there are both NL and CR + while (*in == (char_t)'\r' || *in == (char_t)'\n') { + ++in; + } + *out = in; + return *in != (char_t)'\0'; +} + +// --------------------------------------------------------------------------------- +template <class char_t> +AI_FORCE_INLINE bool SkipLine(const char_t **inout) { + return SkipLine<char_t>(*inout, inout); +} + +// --------------------------------------------------------------------------------- +template <class char_t> +AI_FORCE_INLINE bool SkipSpacesAndLineEnd(const char_t *in, const char_t **out) { + while (*in == (char_t)' ' || *in == (char_t)'\t' || *in == (char_t)'\r' || *in == (char_t)'\n') { + ++in; + } + *out = in; + return *in != '\0'; +} + +// --------------------------------------------------------------------------------- +template <class char_t> +AI_FORCE_INLINE bool SkipSpacesAndLineEnd(const char_t **inout) { + return SkipSpacesAndLineEnd<char_t>(*inout, inout); +} + +// --------------------------------------------------------------------------------- +template <class char_t> +AI_FORCE_INLINE bool GetNextLine(const char_t *&buffer, char_t out[BufferSize]) { + if ((char_t)'\0' == *buffer) { + return false; + } + + char *_out = out; + char *const end = _out + BufferSize; + while (!IsLineEnd(*buffer) && _out < end) { + *_out++ = *buffer++; + } + *_out = (char_t)'\0'; + + while (IsLineEnd(*buffer) && '\0' != *buffer) { + ++buffer; + } + + return true; +} + +// --------------------------------------------------------------------------------- +template <class char_t> +AI_FORCE_INLINE bool IsNumeric(char_t in) { + return (in >= '0' && in <= '9') || '-' == in || '+' == in; +} + +// --------------------------------------------------------------------------------- +template <class char_t> +AI_FORCE_INLINE bool TokenMatch(char_t *&in, const char *token, unsigned int len) { + if (!::strncmp(token, in, len) && IsSpaceOrNewLine(in[len])) { + if (in[len] != '\0') { + in += len + 1; + } else { + // If EOF after the token make sure we don't go past end of buffer + in += len; + } + return true; + } + + return false; +} +// --------------------------------------------------------------------------------- +/** @brief Case-ignoring version of TokenMatch + * @param in Input + * @param token Token to check for + * @param len Number of characters to check + */ +AI_FORCE_INLINE bool TokenMatchI(const char *&in, const char *token, unsigned int len) { + if (!ASSIMP_strincmp(token, in, len) && IsSpaceOrNewLine(in[len])) { + in += len + 1; + return true; + } + return false; +} + +// --------------------------------------------------------------------------------- +AI_FORCE_INLINE void SkipToken(const char *&in) { + SkipSpaces(&in); + while (!IsSpaceOrNewLine(*in)) { + ++in; + } +} + +// --------------------------------------------------------------------------------- +AI_FORCE_INLINE std::string GetNextToken(const char *&in) { + SkipSpacesAndLineEnd(&in); + const char *cur = in; + while (!IsSpaceOrNewLine(*in)) { + ++in; + } + return std::string(cur, (size_t)(in - cur)); +} + +// --------------------------------------------------------------------------------- +/** @brief Will perform a simple tokenize. + * @param str String to tokenize. + * @param tokens Array with tokens, will be empty if no token was found. + * @param delimiters Delimiter for tokenize. + * @return Number of found token. + */ +template <class string_type> +AI_FORCE_INLINE unsigned int tokenize(const string_type &str, std::vector<string_type> &tokens, + const string_type &delimiters) { + // Skip delimiters at beginning. + typename string_type::size_type lastPos = str.find_first_not_of(delimiters, 0); + + // Find first "non-delimiter". + typename string_type::size_type pos = str.find_first_of(delimiters, lastPos); + while (string_type::npos != pos || string_type::npos != lastPos) { + // Found a token, add it to the vector. + string_type tmp = str.substr(lastPos, pos - lastPos); + if (!tmp.empty() && ' ' != tmp[0]) + tokens.push_back(tmp); + + // Skip delimiters. Note the "not_of" + lastPos = str.find_first_not_of(delimiters, pos); + + // Find next "non-delimiter" + pos = str.find_first_of(delimiters, lastPos); + } + + return static_cast<unsigned int>(tokens.size()); +} + +inline std::string ai_stdStrToLower(const std::string &str) { + std::string out(str); + for (size_t i = 0; i < str.size(); ++i) { + out[i] = (char) tolower((unsigned char)out[i]); + } + return out; +} + +} // namespace Assimp + +#endif // ! AI_PARSING_UTILS_H_INC |