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If you do not agree with these 42 terms, please do not use, install, modify or redistribute this NVIDIA 43 software. 44 45 In consideration of your agreement to abide by the following terms, and 46 subject to these terms, NVIDIA grants you a personal, non-exclusive 47 license, under NVIDIA's copyrights in this original NVIDIA software (the 48 "NVIDIA Software"), to use, reproduce, modify and redistribute the 49 NVIDIA Software, with or without modifications, in source and/or binary 50 forms; provided that if you redistribute the NVIDIA Software, you must 51 retain the copyright notice of NVIDIA, this notice and the following 52 text and disclaimers in all such redistributions of the NVIDIA Software. 53 Neither the name, trademarks, service marks nor logos of NVIDIA 54 Corporation may be used to endorse or promote products derived from the 55 NVIDIA Software without specific prior written permission from NVIDIA. 56 Except as expressly stated in this notice, no other rights or licenses 57 express or implied, are granted by NVIDIA herein, including but not 58 limited to any patent rights that may be infringed by your derivative 59 works or by other works in which the NVIDIA Software may be 60 incorporated. No hardware is licensed hereunder. 61 62 THE NVIDIA SOFTWARE IS BEING PROVIDED ON AN "AS IS" BASIS, WITHOUT 63 WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED, 64 INCLUDING WITHOUT LIMITATION, WARRANTIES OR CONDITIONS OF TITLE, 65 NON-INFRINGEMENT, MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR 66 ITS USE AND OPERATION EITHER ALONE OR IN COMBINATION WITH OTHER 67 PRODUCTS. 68 69 IN NO EVENT SHALL NVIDIA BE LIABLE FOR ANY SPECIAL, INDIRECT, 70 INCIDENTAL, EXEMPLARY, CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 71 TO, LOST PROFITS; PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 72 USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) OR ARISING IN ANY WAY 73 OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION OF THE 74 NVIDIA SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, 75 TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF 76 NVIDIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 77 \****************************************************************************/ 78 79 // 80 // atom.c 81 // 82 83 #define _CRT_SECURE_NO_WARNINGS 84 85 #include <assert.h> 86 #include <stdlib.h> 87 #include <stdio.h> 88 #include <string.h> 89 90 #include "PpContext.h" 91 #include "PpTokens.h" 92 93 namespace { 94 95 using namespace glslang; 96 97 const struct { 98 int val; 99 const char* str; 100 } tokens[] = { 101 { PpAtomDefine, "define" }, 102 { PpAtomDefined, "defined" }, 103 { PpAtomUndef, "undef" }, 104 { PpAtomIf, "if" }, 105 { PpAtomElif, "elif" }, 106 { PpAtomElse, "else" }, 107 { PpAtomEndif, "endif" }, 108 { PpAtomIfdef, "ifdef" }, 109 { PpAtomIfndef, "ifndef" }, 110 { PpAtomLine, "line" }, 111 { PpAtomPragma, "pragma" }, 112 { PpAtomError, "error" }, 113 114 { PpAtomVersion, "version" }, 115 { PpAtomCore, "core" }, 116 { PpAtomCompatibility, "compatibility" }, 117 { PpAtomEs, "es" }, 118 { PpAtomExtension, "extension" }, 119 120 { PpAtomLineMacro, "__LINE__" }, 121 { PpAtomFileMacro, "__FILE__" }, 122 { PpAtomVersionMacro, "__VERSION__" }, 123 124 { PpAtomInclude, "include" }, 125 126 }; 127 128 } // end anonymous namespace 129 130 namespace glslang { 131 132 // 133 // Map a new or existing string to an atom, inventing a new atom if necessary. 134 // 135 int TPpContext::LookUpAddString(const char* s) 136 { 137 auto it = atomMap.find(s); 138 if (it == atomMap.end()) { 139 AddAtomFixed(s, nextAtom); 140 return nextAtom++; 141 } else 142 return it->second; 143 } 144 145 // 146 // Map an already created atom to its string. 147 // 148 const char* TPpContext::GetAtomString(int atom) 149 { 150 if ((size_t)atom >= stringMap.size()) 151 return "<bad token>"; 152 153 const TString* atomString = stringMap[atom]; 154 155 return atomString ? atomString->c_str() : "<bad token>"; 156 } 157 158 // 159 // Add forced mapping of string to atom. 160 // 161 void TPpContext::AddAtomFixed(const char* s, int atom) 162 { 163 auto it = atomMap.insert(std::pair<TString, int>(s, atom)).first; 164 if (stringMap.size() < (size_t)atom + 1) 165 stringMap.resize(atom + 100, 0); 166 stringMap[atom] = &it->first; 167 } 168 169 // 170 // Initialize the atom table. 171 // 172 void TPpContext::InitAtomTable() 173 { 174 // Add single character tokens to the atom table: 175 const char* s = "~!%^&*()-+=|,.<>/?;:[]{}#\\"; 176 char t[2]; 177 178 t[1] = '\0'; 179 while (*s) { 180 t[0] = *s; 181 AddAtomFixed(t, s[0]); 182 s++; 183 } 184 185 // Add multiple character scanner tokens : 186 for (size_t ii = 0; ii < sizeof(tokens)/sizeof(tokens[0]); ii++) 187 AddAtomFixed(tokens[ii].str, tokens[ii].val); 188 189 nextAtom = PpAtomLast; 190 } 191 192 } // end namespace glslang 193
