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annotate libs/assimp/ParsingUtils.h @ 0:b2f14e535253

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author John Tsiombikas <nuclear@member.fsf.org>
date Sat, 01 Feb 2014 19:58:19 +0200
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nuclear@0 1 /*
nuclear@0 2 Open Asset Import Library (assimp)
nuclear@0 3 ----------------------------------------------------------------------
nuclear@0 4
nuclear@0 5 Copyright (c) 2006-2012, assimp team
nuclear@0 6 All rights reserved.
nuclear@0 7
nuclear@0 8 Redistribution and use of this software in source and binary forms,
nuclear@0 9 with or without modification, are permitted provided that the
nuclear@0 10 following conditions are met:
nuclear@0 11
nuclear@0 12 * Redistributions of source code must retain the above
nuclear@0 13 copyright notice, this list of conditions and the
nuclear@0 14 following disclaimer.
nuclear@0 15
nuclear@0 16 * Redistributions in binary form must reproduce the above
nuclear@0 17 copyright notice, this list of conditions and the
nuclear@0 18 following disclaimer in the documentation and/or other
nuclear@0 19 materials provided with the distribution.
nuclear@0 20
nuclear@0 21 * Neither the name of the assimp team, nor the names of its
nuclear@0 22 contributors may be used to endorse or promote products
nuclear@0 23 derived from this software without specific prior
nuclear@0 24 written permission of the assimp team.
nuclear@0 25
nuclear@0 26 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
nuclear@0 27 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
nuclear@0 28 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
nuclear@0 29 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
nuclear@0 30 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
nuclear@0 31 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
nuclear@0 32 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
nuclear@0 33 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
nuclear@0 34 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
nuclear@0 35 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
nuclear@0 36 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
nuclear@0 37
nuclear@0 38 ----------------------------------------------------------------------
nuclear@0 39 */
nuclear@0 40
nuclear@0 41
nuclear@0 42 /** @file ParsingUtils.h
nuclear@0 43 * @brief Defines helper functions for text parsing
nuclear@0 44 */
nuclear@0 45 #ifndef AI_PARSING_UTILS_H_INC
nuclear@0 46 #define AI_PARSING_UTILS_H_INC
nuclear@0 47
nuclear@0 48 #include "StringComparison.h"
nuclear@0 49 namespace Assimp {
nuclear@0 50
nuclear@0 51 // NOTE: the functions below are mostly intended as replacement for
nuclear@0 52 // std::upper, std::lower, std::isupper, std::islower, std::isspace.
nuclear@0 53 // we don't bother of locales. We don't want them. We want reliable
nuclear@0 54 // (i.e. identical) results across all locales.
nuclear@0 55
nuclear@0 56 // The functions below accept any character type, but know only
nuclear@0 57 // about ASCII. However, UTF-32 is the only safe ASCII superset to
nuclear@0 58 // use since it doesn't have multibyte sequences.
nuclear@0 59
nuclear@0 60 // ---------------------------------------------------------------------------------
nuclear@0 61 template <class char_t>
nuclear@0 62 AI_FORCE_INLINE char_t ToLower( char_t in)
nuclear@0 63 {
nuclear@0 64 return (in >= (char_t)'A' && in <= (char_t)'Z') ? (char_t)(in+0x20) : in;
nuclear@0 65 }
nuclear@0 66 // ---------------------------------------------------------------------------------
nuclear@0 67 template <class char_t>
nuclear@0 68 AI_FORCE_INLINE char_t ToUpper( char_t in)
nuclear@0 69 {
nuclear@0 70 return (in >= (char_t)'a' && in <= (char_t)'z') ? (char_t)(in-0x20) : in;
nuclear@0 71 }
nuclear@0 72 // ---------------------------------------------------------------------------------
nuclear@0 73 template <class char_t>
nuclear@0 74 AI_FORCE_INLINE bool IsUpper( char_t in)
nuclear@0 75 {
nuclear@0 76 return (in >= (char_t)'A' && in <= (char_t)'Z');
nuclear@0 77 }
nuclear@0 78 // ---------------------------------------------------------------------------------
nuclear@0 79 template <class char_t>
nuclear@0 80 AI_FORCE_INLINE bool IsLower( char_t in)
nuclear@0 81 {
nuclear@0 82 return (in >= (char_t)'a' && in <= (char_t)'z');
nuclear@0 83 }
nuclear@0 84 // ---------------------------------------------------------------------------------
nuclear@0 85 template <class char_t>
nuclear@0 86 AI_FORCE_INLINE bool IsSpace( char_t in)
nuclear@0 87 {
nuclear@0 88 return (in == (char_t)' ' || in == (char_t)'\t');
nuclear@0 89 }
nuclear@0 90 // ---------------------------------------------------------------------------------
nuclear@0 91 template <class char_t>
nuclear@0 92 AI_FORCE_INLINE bool IsLineEnd( char_t in)
nuclear@0 93 {
nuclear@0 94 return (in == (char_t)'\r' || in == (char_t)'\n' || in == (char_t)'\0');
nuclear@0 95 }
nuclear@0 96 // ---------------------------------------------------------------------------------
nuclear@0 97 template <class char_t>
nuclear@0 98 AI_FORCE_INLINE bool IsSpaceOrNewLine( char_t in)
nuclear@0 99 {
nuclear@0 100 return IsSpace<char_t>(in) || IsLineEnd<char_t>(in);
nuclear@0 101 }
nuclear@0 102 // ---------------------------------------------------------------------------------
nuclear@0 103 template <class char_t>
nuclear@0 104 AI_FORCE_INLINE bool SkipSpaces( const char_t* in, const char_t** out)
nuclear@0 105 {
nuclear@0 106 while (*in == (char_t)' ' || *in == (char_t)'\t')in++;
nuclear@0 107 *out = in;
nuclear@0 108 return !IsLineEnd<char_t>(*in);
nuclear@0 109 }
nuclear@0 110 // ---------------------------------------------------------------------------------
nuclear@0 111 template <class char_t>
nuclear@0 112 AI_FORCE_INLINE bool SkipSpaces( const char_t** inout)
nuclear@0 113 {
nuclear@0 114 return SkipSpaces<char_t>(*inout,inout);
nuclear@0 115 }
nuclear@0 116 // ---------------------------------------------------------------------------------
nuclear@0 117 template <class char_t>
nuclear@0 118 inline bool SkipLine( const char_t* in, const char_t** out)
nuclear@0 119 {
nuclear@0 120 while (*in != (char_t)'\r' && *in != (char_t)'\n' && *in != (char_t)'\0')in++;
nuclear@0 121
nuclear@0 122 // files are opened in binary mode. Ergo there are both NL and CR
nuclear@0 123 while (*in == (char_t)'\r' || *in == (char_t)'\n')in++;
nuclear@0 124 *out = in;
nuclear@0 125 return *in != (char_t)'\0';
nuclear@0 126 }
nuclear@0 127 // ---------------------------------------------------------------------------------
nuclear@0 128 template <class char_t>
nuclear@0 129 inline bool SkipLine( const char_t** inout)
nuclear@0 130 {
nuclear@0 131 return SkipLine<char_t>(*inout,inout);
nuclear@0 132 }
nuclear@0 133 // ---------------------------------------------------------------------------------
nuclear@0 134 template <class char_t>
nuclear@0 135 inline bool SkipSpacesAndLineEnd( const char_t* in, const char_t** out)
nuclear@0 136 {
nuclear@0 137 while (*in == (char_t)' ' || *in == (char_t)'\t' ||
nuclear@0 138 *in == (char_t)'\r' || *in == (char_t)'\n')in++;
nuclear@0 139 *out = in;
nuclear@0 140 return *in != '\0';
nuclear@0 141 }
nuclear@0 142 // ---------------------------------------------------------------------------------
nuclear@0 143 template <class char_t>
nuclear@0 144 inline bool SkipSpacesAndLineEnd( const char_t** inout)
nuclear@0 145 {
nuclear@0 146 return SkipSpacesAndLineEnd<char_t>(*inout,inout);
nuclear@0 147 }
nuclear@0 148 // ---------------------------------------------------------------------------------
nuclear@0 149 template <class char_t>
nuclear@0 150 inline bool GetNextLine(const char_t*& buffer, char_t out[4096])
nuclear@0 151 {
nuclear@0 152 if ((char_t)'\0' == *buffer)return false;
nuclear@0 153
nuclear@0 154 char* _out = out;
nuclear@0 155 char* const end = _out+4096;
nuclear@0 156 while (!IsLineEnd( *buffer ) && _out < end)
nuclear@0 157 *_out++ = *buffer++;
nuclear@0 158 *_out = (char_t)'\0';
nuclear@0 159
nuclear@0 160 while (IsLineEnd( *buffer ) && '\0' != *buffer)++buffer;
nuclear@0 161 return true;
nuclear@0 162 }
nuclear@0 163 // ---------------------------------------------------------------------------------
nuclear@0 164 template <class char_t>
nuclear@0 165 AI_FORCE_INLINE bool IsNumeric( char_t in)
nuclear@0 166 {
nuclear@0 167 return ( in >= '0' && in <= '9' ) || '-' == in || '+' == in;
nuclear@0 168 }
nuclear@0 169 // ---------------------------------------------------------------------------------
nuclear@0 170 template <class char_t>
nuclear@0 171 AI_FORCE_INLINE bool TokenMatch(char_t*& in, const char* token, unsigned int len)
nuclear@0 172 {
nuclear@0 173 if (!::strncmp(token,in,len) && IsSpaceOrNewLine(in[len]))
nuclear@0 174 {
nuclear@0 175 in += len+1;
nuclear@0 176 return true;
nuclear@0 177 }
nuclear@0 178 return false;
nuclear@0 179 }
nuclear@0 180 // ---------------------------------------------------------------------------------
nuclear@0 181 /** @brief Case-ignoring version of TokenMatch
nuclear@0 182 * @param in Input
nuclear@0 183 * @param token Token to check for
nuclear@0 184 * @param len Number of characters to check
nuclear@0 185 */
nuclear@0 186 AI_FORCE_INLINE bool TokenMatchI(const char*& in, const char* token, unsigned int len)
nuclear@0 187 {
nuclear@0 188 if (!ASSIMP_strincmp(token,in,len) && IsSpaceOrNewLine(in[len]))
nuclear@0 189 {
nuclear@0 190 in += len+1;
nuclear@0 191 return true;
nuclear@0 192 }
nuclear@0 193 return false;
nuclear@0 194 }
nuclear@0 195 // ---------------------------------------------------------------------------------
nuclear@0 196 AI_FORCE_INLINE void SkipToken(const char*& in)
nuclear@0 197 {
nuclear@0 198 SkipSpaces(&in);
nuclear@0 199 while (!IsSpaceOrNewLine(*in))++in;
nuclear@0 200 }
nuclear@0 201 // ---------------------------------------------------------------------------------
nuclear@0 202 AI_FORCE_INLINE std::string GetNextToken(const char*& in)
nuclear@0 203 {
nuclear@0 204 SkipSpacesAndLineEnd(&in);
nuclear@0 205 const char* cur = in;
nuclear@0 206 while (!IsSpaceOrNewLine(*in))++in;
nuclear@0 207 return std::string(cur,(size_t)(in-cur));
nuclear@0 208 }
nuclear@0 209 } // ! namespace Assimp
nuclear@0 210 #endif // ! AI_PARSING_UTILS_H_INC