WIP of assimp integration.

Engine/lib/assimp/code/ParsingUtils.h

@@ -0,0 +1,250 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2016, 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
+ */
+#ifndef AI_PARSING_UTILS_H_INC
+#define AI_PARSING_UTILS_H_INC
+
+#include "StringComparison.h"
+#include "StringUtils.h"
+#include <assimp/defs.h>
+
+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 char_t ToLower( char_t in)
+{
+    return (in >= (char_t)'A' && in <= (char_t)'Z') ? (char_t)(in+0x20) : in;
+}
+
+// ---------------------------------------------------------------------------------
+template <class char_t>
+AI_FORCE_INLINE char_t ToUpper( char_t in) {
+    return (in >= (char_t)'a' && in <= (char_t)'z') ? (char_t)(in-0x20) : in;
+}
+
+// ---------------------------------------------------------------------------------
+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));
+}
+
+// ---------------------------------------------------------------------------------
+
+} // ! namespace Assimp
+
+#endif // ! AI_PARSING_UTILS_H_INC