2 //**************************************************************************
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6 //**************************************************************************
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8 // HEADER FILES ------------------------------------------------------------
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23 #include "strlist.h"
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25 // MACROS ------------------------------------------------------------------
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27 #define MAX_STATEMENT_DEPTH 128
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28 #define MAX_BREAK 128
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29 #define MAX_CONTINUE 128
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30 #define MAX_CASE 128
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31 #define EXPR_STACK_DEPTH 64
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33 // TYPES -------------------------------------------------------------------
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66 typedef struct prefunc_s
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68 struct prefunc_s *next;
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76 // EXTERNAL FUNCTION PROTOTYPES --------------------------------------------
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78 // PUBLIC FUNCTION PROTOTYPES ----------------------------------------------
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80 // PRIVATE FUNCTION PROTOTYPES ---------------------------------------------
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82 static void CountScript(int type);
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83 static void Outside(void);
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84 static void OuterScript(void);
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85 static void OuterFunction(void);
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86 static void OuterMapVar(boolean local);
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87 static void OuterWorldVar(boolean isGlobal);
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88 static void OuterSpecialDef(void);
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89 static void OuterDefine(boolean force);
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90 static void OuterInclude(void);
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91 static void OuterImport(void);
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92 static boolean ProcessStatement(statement_t owner);
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93 static void LeadingCompoundStatement(statement_t owner);
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94 static void LeadingVarDeclare(void);
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95 static void LeadingLineSpecial(boolean executewait);
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96 static void LeadingIdentifier(void);
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97 static void BuildPrintString(void);
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98 static void PrintCharArray(void);
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99 static void LeadingPrint(void);
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100 static void LeadingHudMessage(void);
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101 static void LeadingVarAssign(symbolNode_t *sym);
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102 static pcd_t GetAssignPCD(tokenType_t token, symbolType_t symbol);
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103 static void LeadingInternFunc(symbolNode_t *sym);
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104 static void LeadingScriptFunc(symbolNode_t *sym);
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105 static void LeadingSuspend(void);
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106 static void LeadingTerminate(void);
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107 static void LeadingRestart(void);
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108 static void LeadingReturn(void);
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109 static void LeadingIf(void);
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110 static void LeadingFor(void);
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111 static void LeadingWhileUntil(void);
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112 static void LeadingDo(void);
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113 static void LeadingSwitch(void);
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114 static void LeadingCase(void);
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115 static void LeadingDefault(void);
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116 static void LeadingBreak(void);
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117 static void LeadingContinue(void);
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118 static void LeadingCreateTranslation(void);
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119 static void LeadingIncDec(int token);
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120 static void PushCase(int value, boolean isDefault);
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121 static caseInfo_t *GetCaseInfo(void);
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122 static int CaseInfoCmp(const void *a, const void *b);
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123 static boolean DefaultInCurrent(void);
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124 static void PushBreak(void);
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125 static void WriteBreaks(void);
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126 static boolean BreakAncestor(void);
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127 static void PushContinue(void);
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128 static void WriteContinues(int address);
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129 static boolean ContinueAncestor(void);
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130 static void ProcessInternFunc(symbolNode_t *sym);
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131 static void ProcessScriptFunc(symbolNode_t *sym, boolean discardReturn);
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132 static void EvalExpression(void);
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133 static void ExprLevX(int level);
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134 static void ExprLevA(void);
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135 static void ExprFactor(void);
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136 static void ConstExprFactor(void);
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137 static void SendExprCommand(pcd_t pcd);
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138 static void PushExStk(int value);
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139 static int PopExStk(void);
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140 static pcd_t TokenToPCD(tokenType_t token);
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141 static pcd_t GetPushVarPCD(symbolType_t symType);
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142 static pcd_t GetIncDecPCD(tokenType_t token, symbolType_t symbol);
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143 static int EvalConstExpression(void);
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144 static void ParseArrayIndices(symbolNode_t *sym, int requiredIndices);
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145 static void InitializeArray(symbolNode_t *sym, int dims[MAX_ARRAY_DIMS], int size);
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146 static symbolNode_t *DemandSymbol(char *name);
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147 static symbolNode_t *SpeculateSymbol(char *name, boolean hasReturn);
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148 static symbolNode_t *SpeculateFunction(const char *name, boolean hasReturn);
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149 static void UnspeculateFunction(symbolNode_t *sym);
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150 static void AddScriptFuncRef(symbolNode_t *sym, int address, int argcount);
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151 static void CheckForUndefinedFunctions(void);
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152 static void SkipBraceBlock(int depth);
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154 // EXTERNAL DATA DECLARATIONS ----------------------------------------------
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156 // PUBLIC DATA DEFINITIONS -------------------------------------------------
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158 int pa_ScriptCount;
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159 struct ScriptTypes *pa_TypedScriptCounts;
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160 int pa_MapVarCount;
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161 int pa_WorldVarCount;
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162 int pa_GlobalVarCount;
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163 int pa_WorldArrayCount;
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164 int pa_GlobalArrayCount;
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165 enum ImportModes ImportMode = IMPORT_None;
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166 boolean ExporterFlagged;
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167 boolean pa_ConstExprIsString;
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169 // PRIVATE DATA DEFINITIONS ------------------------------------------------
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171 static int ScriptVarCount;
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172 static statement_t StatementHistory[MAX_STATEMENT_DEPTH];
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173 static int StatementIndex;
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174 static breakInfo_t BreakInfo[MAX_BREAK];
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175 static int BreakIndex;
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176 static continueInfo_t ContinueInfo[MAX_CONTINUE];
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177 static int ContinueIndex;
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178 static caseInfo_t CaseInfo[MAX_CASE];
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179 static int CaseIndex;
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180 static int StatementLevel;
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181 static int ExprStack[EXPR_STACK_DEPTH];
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182 static int ExprStackIndex;
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183 static boolean ConstantExpression;
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184 static symbolNode_t *InsideFunction;
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185 static prefunc_t *FillinFunctions;
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186 static prefunc_t **FillinFunctionsLatest = &FillinFunctions;
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187 static boolean ArrayHasStrings;
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189 static int AdjustStmtLevel[] =
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195 1, // STMT_WHILEUNTIL
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200 static boolean IsBreakRoot[] =
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206 YES, // STMT_WHILEUNTIL
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207 YES, // STMT_SWITCH
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211 static boolean IsContinueRoot[] =
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217 YES, // STMT_WHILEUNTIL
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222 static tokenType_t LevAOps[] =
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228 static tokenType_t LevBOps[] =
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234 static tokenType_t LevCOps[] =
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240 static tokenType_t LevDOps[] =
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246 static tokenType_t LevEOps[] =
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252 static tokenType_t LevFOps[] =
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259 static tokenType_t LevGOps[] =
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268 static tokenType_t LevHOps[] =
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275 static tokenType_t LevIOps[] =
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282 static tokenType_t LevJOps[] =
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290 static tokenType_t *OpsList[] =
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305 static tokenType_t AssignOps[] =
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321 static struct ScriptTypes ScriptCounts[] =
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323 { "closed", 0, 0 },
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324 { "open", OPEN_SCRIPTS_BASE, 0 },
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325 { "respawn", RESPAWN_SCRIPTS_BASE, 0 },
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326 { "death", DEATH_SCRIPTS_BASE, 0 },
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327 { "enter", ENTER_SCRIPTS_BASE, 0 },
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328 { "pickup", PICKUP_SCRIPTS_BASE, 0 },
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329 { "bluereturn", BLUE_RETURN_SCRIPTS_BASE, 0 },
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330 { "redreturn", RED_RETURN_SCRIPTS_BASE, 0 },
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331 { "whitereturn", WHITE_RETURN_SCRIPTS_BASE, 0 },
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332 { "lightning", LIGHTNING_SCRIPTS_BASE, 0 },
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333 { "disconnect", DISCONNECT_SCRIPTS_BASE, 0 },
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334 { "unloading", UNLOADING_SCRIPTS_BASE, 0 },
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338 // CODE --------------------------------------------------------------------
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340 //==========================================================================
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344 //==========================================================================
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346 void PA_Parse(void)
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350 pa_ScriptCount = 0;
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351 pa_TypedScriptCounts = ScriptCounts;
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352 for (i = 0; ScriptCounts[i].TypeName != NULL; i++)
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354 ScriptCounts[i].TypeCount = 0;
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356 pa_MapVarCount = 0;
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357 pa_WorldVarCount = 0;
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358 pa_GlobalVarCount = 0;
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359 pa_WorldArrayCount = 0;
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360 pa_GlobalArrayCount = 0;
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363 CheckForUndefinedFunctions();
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367 //==========================================================================
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371 //==========================================================================
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373 static void CountScript(int type)
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377 for (i = 0; ScriptCounts[i].TypeName != NULL; i++)
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379 if (ScriptCounts[i].TypeBase == type)
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383 MS_Message(MSG_DEBUG, "Script type: %s\n",
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384 ScriptCounts[i].TypeName);
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386 ScriptCounts[i].TypeCount++;
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393 //==========================================================================
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397 //==========================================================================
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399 static void Outside(void)
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427 OuterWorldVar(YES);
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432 case TK_NUMBERSIGN:
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446 if(ImportMode != IMPORT_Importing)
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448 if(pc_Address != 8)
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450 ERR_Error(ERR_NOCOMPACT_NOT_HERE, YES);
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452 MS_Message(MSG_DEBUG, "Forcing NoShrink\n");
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453 pc_NoShrink = TRUE;
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458 if(ImportMode != IMPORT_Importing)
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460 MS_Message(MSG_DEBUG, "Will write WadAuthor-compatible object\n");
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461 MS_Message(MSG_NORMAL, "You don't need to use #wadauthor anymore.\n");
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462 pc_WadAuthor = TRUE;
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466 case TK_NOWADAUTHOR:
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467 if(ImportMode != IMPORT_Importing)
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469 MS_Message(MSG_DEBUG, "Will write WadAuthor-incompatible object\n");
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470 pc_WadAuthor = FALSE;
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474 case TK_ENCRYPTSTRINGS:
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475 if(ImportMode != IMPORT_Importing)
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477 MS_Message(MSG_DEBUG, "Strings will be encrypted\n");
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478 pc_EncryptStrings = TRUE;
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486 TK_NextTokenMustBe(TK_STRING, ERR_STRING_LIT_NOT_FOUND);
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487 if(ImportMode == IMPORT_None)
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489 MS_Message(MSG_DEBUG, "Allocations modified for exporting\n");
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490 ImportMode = IMPORT_Exporting;
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492 else if(ImportMode == IMPORT_Importing)
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494 PC_AddImport(tk_String);
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495 ExporterFlagged = YES;
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500 ERR_Error(ERR_INVALID_DIRECTIVE, YES);
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506 ERR_Exit(ERR_INVALID_DECLARATOR, YES, NULL);
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512 //==========================================================================
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516 //==========================================================================
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518 static void OuterScript(void)
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524 MS_Message(MSG_DEBUG, "---- OuterScript ----\n");
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527 StatementLevel = 0;
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528 ScriptVarCount = 0;
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532 if(ImportMode == IMPORT_Importing)
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534 // When importing, the script number is not recorded, because
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535 // it might be a #define that is not included by the main .acs
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536 // file, so processing it would generate a syntax error.
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542 // [RH] If you want to use script 0, it must be written as <<0>>.
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543 // This is to avoid using it accidentally, since ZDoom uses script
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544 // 0 to implement many of the Strife-specific line specials.
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546 if(tk_Token == TK_LSHIFT)
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548 TK_NextTokenMustBe(TK_NUMBER, ERR_SCRIPT_OUT_OF_RANGE);
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551 ERR_Exit(ERR_SCRIPT_OUT_OF_RANGE, YES, NULL);
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553 TK_NextTokenMustBe(TK_RSHIFT, ERR_SCRIPT_OUT_OF_RANGE);
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559 scriptNumber = EvalConstExpression();
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560 if(scriptNumber < 1 || scriptNumber > 999)
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563 ERR_Error(ERR_SCRIPT_OUT_OF_RANGE, YES, NULL);
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569 MS_Message(MSG_DEBUG, "Script number: %d\n", scriptNumber);
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571 if(tk_Token == TK_LPAREN)
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573 if(TK_NextToken() == TK_VOID)
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575 TK_NextTokenMustBe(TK_RPAREN, ERR_MISSING_RPAREN);
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582 TK_NextTokenMustBe(TK_INT, ERR_BAD_VAR_TYPE);
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583 TK_NextTokenMustBe(TK_IDENTIFIER, ERR_INVALID_IDENTIFIER);
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584 if(ScriptVarCount == 3)
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586 ERR_Error(ERR_TOO_MANY_SCRIPT_ARGS, YES);
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588 if(SY_FindLocal(tk_String) != NULL)
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590 ERR_Error(ERR_REDEFINED_IDENTIFIER, YES, tk_String);
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592 else if(ScriptVarCount < 3)
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594 sym = SY_InsertLocal(tk_String, SY_SCRIPTVAR);
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595 sym->info.var.index = ScriptVarCount;
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599 } while(tk_Token == TK_COMMA);
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600 TK_TokenMustBe(TK_RPAREN, ERR_MISSING_RPAREN);
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605 case TK_DISCONNECT:
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606 scriptType = DISCONNECT_SCRIPTS_BASE;
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607 if(ScriptVarCount != 1)
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609 ERR_Error(ERR_DISCONNECT_NEEDS_1_ARG, YES);
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618 case TK_BLUERETURN:
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620 case TK_WHITERETURN:
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623 ERR_Error(ERR_UNCLOSED_WITH_ARGS, YES);
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629 MS_Message(MSG_DEBUG, "Script type: %s (%d %s)\n",
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630 scriptType == 0 ? "closed" : "disconnect",
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631 ScriptVarCount, ScriptVarCount == 1 ? "arg" : "args");
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633 else switch (tk_Token)
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636 scriptType = OPEN_SCRIPTS_BASE;
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639 case TK_RESPAWN: // [BC]
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640 scriptType = RESPAWN_SCRIPTS_BASE;
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643 case TK_DEATH: // [BC]
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644 scriptType = DEATH_SCRIPTS_BASE;
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647 case TK_ENTER: // [BC]
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648 scriptType = ENTER_SCRIPTS_BASE;
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651 case TK_PICKUP: // [BC]
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652 scriptType = PICKUP_SCRIPTS_BASE;
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655 case TK_BLUERETURN: // [BC]
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656 scriptType = BLUE_RETURN_SCRIPTS_BASE;
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659 case TK_REDRETURN: // [BC]
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660 scriptType = RED_RETURN_SCRIPTS_BASE;
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663 case TK_WHITERETURN: // [BC]
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664 scriptType = WHITE_RETURN_SCRIPTS_BASE;
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668 scriptType = LIGHTNING_SCRIPTS_BASE;
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672 scriptType = UNLOADING_SCRIPTS_BASE;
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675 case TK_DISCONNECT:
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676 scriptType = DISCONNECT_SCRIPTS_BASE;
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677 ERR_Error (ERR_DISCONNECT_NEEDS_1_ARG, YES);
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681 ERR_Error(ERR_BAD_SCRIPT_DECL, YES);
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687 if(tk_Token == TK_NET)
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689 scriptNumber += NET_SCRIPT_FLAG;
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692 CountScript(scriptType);
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693 PC_AddScript(scriptNumber + scriptType, ScriptVarCount);
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694 pc_LastAppendedCommand = PCD_NOP;
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695 if(ProcessStatement(STMT_SCRIPT) == NO)
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697 ERR_Error(ERR_INVALID_STATEMENT, YES);
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699 if(pc_LastAppendedCommand != PCD_TERMINATE)
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701 PC_AppendCmd(PCD_TERMINATE);
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703 PC_SetScriptVarCount(scriptNumber + scriptType, ScriptVarCount);
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707 //==========================================================================
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711 //==========================================================================
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713 static void OuterFunction(void)
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715 enum ImportModes importing;
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720 MS_Message(MSG_DEBUG, "---- OuterFunction ----\n");
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721 importing = ImportMode;
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724 StatementLevel = 0;
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725 ScriptVarCount = 0;
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728 if(tk_Token != TK_STR && tk_Token != TK_INT &&
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729 tk_Token != TK_VOID && tk_Token != TK_BOOL)
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731 ERR_Error(ERR_BAD_RETURN_TYPE, YES);
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732 tk_Token = TK_VOID;
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734 hasReturn = tk_Token != TK_VOID;
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735 TK_NextTokenMustBe(TK_IDENTIFIER, ERR_INVALID_IDENTIFIER);
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736 sym = SY_FindGlobal(tk_String);
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739 if(sym->type != SY_SCRIPTFUNC)
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741 ERR_Error(ERR_REDEFINED_IDENTIFIER, YES, tk_String);
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746 if(!sym->info.scriptFunc.predefined)
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748 ERR_Error(ERR_FUNCTION_ALREADY_DEFINED, YES);
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749 ERR_ErrorAt(sym->info.scriptFunc.sourceName, sym->info.scriptFunc.sourceLine);
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750 ERR_Error(ERR_NONE, YES, "Previous definition was here.");
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755 if(sym->info.scriptFunc.hasReturnValue && !hasReturn)
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757 ERR_Error(ERR_PREVIOUS_NOT_VOID, YES);
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758 ERR_ErrorAt(sym->info.scriptFunc.sourceName, sym->info.scriptFunc.sourceLine);
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759 ERR_Error(ERR_NONE, YES, "Previous use was here.");
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764 sym = SY_InsertGlobal(tk_String, SY_SCRIPTFUNC);
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765 sym->info.scriptFunc.address = (importing == IMPORT_Importing ? 0 : pc_Address);
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766 sym->info.scriptFunc.predefined = NO;
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770 TK_NextTokenMustBe(TK_LPAREN, ERR_MISSING_LPAREN);
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771 if(TK_NextToken() == TK_VOID)
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773 TK_NextTokenMustBe(TK_RPAREN, ERR_MISSING_RPAREN);
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781 symbolNode_t *local;
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784 /* if(tk_Token != TK_INT && tk_Token != TK_STR && tk_Token != TK_BOOL)
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786 ERR_Error(ERR_BAD_VAR_TYPE, YES);
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789 */ if(tk_Token == TK_INT || tk_Token == TK_BOOL)
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791 if(TK_NextToken() == TK_LBRACKET)
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793 TK_NextTokenMustBe(TK_RBRACKET, ERR_BAD_VAR_TYPE);
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794 type = SY_SCRIPTALIAS;
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799 type = SY_SCRIPTVAR;
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802 else if(tk_Token == TK_STR)
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804 type = SY_SCRIPTVAR;
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808 type = SY_SCRIPTVAR;
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809 ERR_Error(ERR_BAD_VAR_TYPE, YES);
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812 TK_NextTokenMustBe(TK_IDENTIFIER, ERR_INVALID_IDENTIFIER);
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813 if(SY_FindLocal(tk_String) != NULL)
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815 ERR_Error(ERR_REDEFINED_IDENTIFIER, YES, tk_String);
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819 local = SY_InsertLocal(tk_String, type);
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820 local->info.var.index = ScriptVarCount;
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824 } while(tk_Token == TK_COMMA);
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825 TK_TokenMustBe(TK_RPAREN, ERR_MISSING_RPAREN);
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828 sym->info.scriptFunc.sourceLine = defLine;
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829 sym->info.scriptFunc.sourceName = tk_SourceName;
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830 sym->info.scriptFunc.argCount = ScriptVarCount;
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831 sym->info.scriptFunc.address = (importing == IMPORT_Importing) ? 0 : pc_Address;
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832 sym->info.scriptFunc.hasReturnValue = hasReturn;
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834 if(importing == IMPORT_Importing)
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838 sym->info.scriptFunc.predefined = NO;
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839 sym->info.scriptFunc.varCount = ScriptVarCount;
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844 InsideFunction = sym;
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845 pc_LastAppendedCommand = PCD_NOP;
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847 // If we just call ProcessStatement(STMT_SCRIPT), and this function
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848 // needs to return a value but the last pcode output was not a return,
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849 // then the line number given in the error can be confusing because it
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850 // is beyond the end of the function. To avoid this, we process the
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851 // compound statement ourself and check if it returned something
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852 // before checking for the '}'. If a return is required, then the error
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853 // line will be shown as the one that contains the '}' (if present).
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855 TK_TokenMustBe(TK_LBRACE, ERR_MISSING_LBRACE);
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857 do ; while(ProcessStatement(STMT_SCRIPT) == YES);
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859 if(pc_LastAppendedCommand != PCD_RETURNVOID &&
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860 pc_LastAppendedCommand != PCD_RETURNVAL)
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865 ERR_Error(ERR_MUST_RETURN_A_VALUE, YES, NULL);
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867 PC_AppendCmd(PCD_RETURNVOID);
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870 TK_TokenMustBe(TK_RBRACE, ERR_INVALID_STATEMENT);
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873 sym->info.scriptFunc.predefined = NO;
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874 sym->info.scriptFunc.varCount = ScriptVarCount -
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875 sym->info.scriptFunc.argCount;
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876 PC_AddFunction(sym);
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877 UnspeculateFunction(sym);
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878 InsideFunction = NULL;
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881 //==========================================================================
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885 //==========================================================================
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887 static void OuterMapVar(boolean local)
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889 symbolNode_t *sym = NULL;
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892 MS_Message(MSG_DEBUG, "---- %s ----\n", local ? "LeadingStaticVarDeclare" : "OuterMapVar");
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895 if(pa_MapVarCount >= MAX_MAP_VARIABLES)
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897 ERR_Error(ERR_TOO_MANY_MAP_VARS, YES);
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898 index = MAX_MAP_VARIABLES;
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900 TK_NextTokenMustBe(TK_IDENTIFIER, ERR_INVALID_IDENTIFIER);
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901 sym = local ? SY_FindLocal(tk_String)
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902 : SY_FindGlobal(tk_String);
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905 ERR_Error(ERR_REDEFINED_IDENTIFIER, YES, tk_String);
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906 index = MAX_MAP_VARIABLES;
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910 sym = local ? SY_InsertLocal(tk_String, SY_MAPVAR)
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911 : SY_InsertGlobal(tk_String, SY_MAPVAR);
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912 if(ImportMode == IMPORT_Importing)
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914 sym->info.var.index = index = 0;
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918 sym->info.var.index = index = pa_MapVarCount;
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920 { // Local variables are not exported
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921 PC_NameMapVariable(index, sym);
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927 if(tk_Token == TK_ASSIGN)
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929 if(ImportMode != IMPORT_Importing)
\r
932 PC_PutMapVariable (index, EvalConstExpression());
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936 // When importing, skip the initializer, because we don't care.
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940 } while(tk_Token != TK_COMMA && tk_Token != TK_SEMICOLON);
\r
943 else if(tk_Token == TK_LBRACKET)
\r
947 int dims[MAX_ARRAY_DIMS];
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949 memset(dims, 0, sizeof(dims));
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951 while(tk_Token == TK_LBRACKET)
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953 if(ndim == MAX_ARRAY_DIMS)
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955 ERR_Error(ERR_TOO_MANY_ARRAY_DIMS, YES);
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959 } while(tk_Token != TK_COMMA && tk_Token != TK_SEMICOLON);
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963 if (tk_Token == TK_RBRACKET)
\r
965 ERR_Error(ERR_NEED_ARRAY_SIZE, YES);
\r
969 dims[ndim] = EvalConstExpression();
\r
970 if(dims[ndim] == 0)
\r
972 ERR_Error(ERR_ZERO_DIMENSION, YES);
\r
981 size *= dims[ndim];
\r
985 TK_TokenMustBe(TK_RBRACKET, ERR_MISSING_RBRACKET);
\r
990 if(ImportMode != IMPORT_Importing)
\r
992 PC_AddArray(index, size);
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994 MS_Message(MSG_DEBUG, "%s changed to an array of size %d\n", sym->name, size);
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995 sym->type = SY_MAPARRAY;
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996 sym->info.array.index = index;
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997 sym->info.array.ndim = ndim;
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998 sym->info.array.size = size;
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1001 sym->info.array.dimensions[ndim-1] = 1;
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1002 for(i = ndim - 2; i >= 0; --i)
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1004 sym->info.array.dimensions[i] =
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1005 sym->info.array.dimensions[i+1] * dims[i+1];
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1008 MS_Message(MSG_DEBUG, " - with multipliers ");
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1009 for(i = 0; i < ndim; ++i)
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1011 MS_Message(MSG_DEBUG, "[%d]", sym->info.array.dimensions[i]);
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1013 MS_Message(MSG_DEBUG, "\n");
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1014 if(tk_Token == TK_ASSIGN)
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1016 InitializeArray(sym, dims, size);
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1020 } while(tk_Token == TK_COMMA);
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1021 TK_TokenMustBe(TK_SEMICOLON, ERR_MISSING_SEMICOLON);
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1025 //==========================================================================
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1029 //==========================================================================
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1031 static void OuterWorldVar(boolean isGlobal)
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1034 symbolNode_t *sym;
\r
1036 MS_Message(MSG_DEBUG, "---- Outer%sVar ----\n", isGlobal ? "Global" : "World");
\r
1037 if(TK_NextToken() != TK_INT)
\r
1039 if(tk_Token != TK_BOOL)
\r
1041 TK_TokenMustBe(TK_STR, ERR_BAD_VAR_TYPE);
\r
1046 TK_NextTokenMustBe(TK_NUMBER, ERR_MISSING_WVAR_INDEX);
\r
1047 if(tk_Number >= (isGlobal ? MAX_GLOBAL_VARIABLES : MAX_WORLD_VARIABLES))
\r
1049 ERR_Error(ERR_BAD_WVAR_INDEX+isGlobal, YES);
\r
1054 index = tk_Number;
\r
1056 TK_NextTokenMustBe(TK_COLON, ERR_MISSING_WVAR_COLON+isGlobal);
\r
1057 TK_NextTokenMustBe(TK_IDENTIFIER, ERR_INVALID_IDENTIFIER);
\r
1058 if(SY_FindGlobal(tk_String) != NULL)
\r
1060 ERR_Error(ERR_REDEFINED_IDENTIFIER, YES, tk_String);
\r
1065 if(tk_Token == TK_LBRACKET)
\r
1068 if(tk_Token != TK_RBRACKET)
\r
1070 ERR_Error(ERR_NO_NEED_ARRAY_SIZE, YES);
\r
1071 TK_SkipPast(TK_RBRACKET);
\r
1077 if(tk_Token == TK_LBRACKET)
\r
1079 ERR_Error(ERR_NO_MULTIDIMENSIONS, YES);
\r
1082 TK_SkipPast(TK_RBRACKET);
\r
1084 while(tk_Token == TK_LBRACKET);
\r
1086 sym = SY_InsertGlobal(tk_String, isGlobal ? SY_GLOBALARRAY : SY_WORLDARRAY);
\r
1087 sym->info.array.index = index;
\r
1088 sym->info.array.ndim = 1;
\r
1089 sym->info.array.size = 0x7fffffff; // not used
\r
1090 memset(sym->info.array.dimensions, 0, sizeof(sym->info.array.dimensions));
\r
1093 pa_GlobalArrayCount++;
\r
1095 pa_WorldArrayCount++;
\r
1099 sym = SY_InsertGlobal(tk_String, isGlobal ? SY_GLOBALVAR : SY_WORLDVAR);
\r
1100 sym->info.var.index = index;
\r
1102 pa_GlobalVarCount++;
\r
1104 pa_WorldVarCount++;
\r
1107 } while(tk_Token == TK_COMMA);
\r
1108 TK_TokenMustBe(TK_SEMICOLON, ERR_MISSING_SEMICOLON);
\r
1112 //==========================================================================
\r
1114 // OuterSpecialDef
\r
1116 //==========================================================================
\r
1118 static void OuterSpecialDef(void)
\r
1121 symbolNode_t *sym;
\r
1123 MS_Message(MSG_DEBUG, "---- OuterSpecialDef ----\n");
\r
1124 if(ImportMode == IMPORT_Importing)
\r
1126 // No need to process special definitions when importing.
\r
1127 TK_SkipPast(TK_SEMICOLON);
\r
1133 TK_NextTokenMustBe(TK_NUMBER, ERR_MISSING_SPEC_VAL);
\r
1134 special = tk_Number;
\r
1135 TK_NextTokenMustBe(TK_COLON, ERR_MISSING_SPEC_COLON);
\r
1136 TK_NextTokenMustBe(TK_IDENTIFIER, ERR_INVALID_IDENTIFIER);
\r
1137 sym = SY_InsertGlobalUnique(tk_String, SY_SPECIAL);
\r
1138 TK_NextTokenMustBe(TK_LPAREN, ERR_MISSING_LPAREN);
\r
1139 TK_NextTokenMustBe(TK_NUMBER, ERR_MISSING_SPEC_ARGC);
\r
1140 sym->info.special.value = special;
\r
1141 sym->info.special.argCount = tk_Number | (tk_Number << 16);
\r
1143 if(tk_Token == TK_COMMA)
\r
1144 { // Get maximum arg count
\r
1145 TK_NextTokenMustBe(TK_NUMBER, ERR_MISSING_SPEC_ARGC);
\r
1146 sym->info.special.argCount =
\r
1147 (sym->info.special.argCount & 0xffff) | (tk_Number << 16);
\r
1153 TK_NextTokenMustBe(TK_RPAREN, ERR_MISSING_RPAREN);
\r
1155 } while(tk_Token == TK_COMMA);
\r
1156 TK_TokenMustBe(TK_SEMICOLON, ERR_MISSING_SEMICOLON);
\r
1161 //==========================================================================
\r
1165 //==========================================================================
\r
1167 static void OuterDefine(boolean force)
\r
1170 symbolNode_t *sym;
\r
1172 MS_Message(MSG_DEBUG, "---- OuterDefine %s----\n",
\r
1173 force ? "(forced) " : "");
\r
1174 TK_NextTokenMustBe(TK_IDENTIFIER, ERR_INVALID_IDENTIFIER);
\r
1175 sym = SY_InsertGlobalUnique(tk_String, SY_CONSTANT);
\r
1177 value = EvalConstExpression();
\r
1178 MS_Message(MSG_DEBUG, "Constant value: %d\n", value);
\r
1179 sym->info.constant.value = value;
\r
1180 // Defines inside an import are deleted when the import is popped.
\r
1181 if(ImportMode != IMPORT_Importing || force)
\r
1183 sym->info.constant.fileDepth = 0;
\r
1187 sym->info.constant.fileDepth = TK_GetDepth();
\r
1191 //==========================================================================
\r
1195 //==========================================================================
\r
1197 static void OuterInclude(void)
\r
1199 // Don't include inside an import
\r
1200 if(ImportMode != IMPORT_Importing)
\r
1202 MS_Message(MSG_DEBUG, "---- OuterInclude ----\n");
\r
1203 TK_NextTokenMustBe(TK_STRING, ERR_STRING_LIT_NOT_FOUND);
\r
1204 TK_Include(tk_String);
\r
1213 //==========================================================================
\r
1217 //==========================================================================
\r
1219 static void OuterImport(void)
\r
1222 MS_Message(MSG_DEBUG, "---- OuterImport ----\n");
\r
1223 if(ImportMode == IMPORT_Importing)
\r
1225 // Don't import inside an import
\r
1230 MS_Message(MSG_DEBUG, "Importing a file\n");
\r
1231 TK_NextTokenMustBe(TK_STRING, ERR_STRING_LIT_NOT_FOUND);
\r
1232 TK_Import(tk_String, ImportMode);
\r
1237 //==========================================================================
\r
1239 // ProcessStatement
\r
1241 //==========================================================================
\r
1243 static boolean ProcessStatement(statement_t owner)
\r
1245 if(StatementIndex == MAX_STATEMENT_DEPTH)
\r
1247 ERR_Exit(ERR_STATEMENT_OVERFLOW, YES);
\r
1249 StatementHistory[StatementIndex++] = owner;
\r
1256 LeadingVarDeclare();
\r
1258 case TK_LINESPECIAL:
\r
1259 LeadingLineSpecial(NO);
\r
1261 case TK_ACSEXECUTEWAIT:
\r
1262 tk_SpecialArgCount = 1 | (5<<16);
\r
1263 tk_SpecialValue = 80;
\r
1264 LeadingLineSpecial(YES);
\r
1272 case TK_TERMINATE:
\r
1273 LeadingTerminate();
\r
1278 case TK_IDENTIFIER:
\r
1279 LeadingIdentifier();
\r
1282 case TK_PRINTBOLD:
\r
1286 case TK_HUDMESSAGE:
\r
1287 case TK_HUDMESSAGEBOLD:
\r
1288 LeadingHudMessage();
\r
1298 LeadingWhileUntil();
\r
1307 if(owner != STMT_SWITCH)
\r
1309 ERR_Error(ERR_CASE_NOT_IN_SWITCH, YES);
\r
1310 TK_SkipPast(TK_COLON);
\r
1318 if(owner != STMT_SWITCH)
\r
1320 ERR_Error(ERR_DEFAULT_NOT_IN_SWITCH, YES);
\r
1321 TK_SkipPast(TK_COLON);
\r
1323 else if(DefaultInCurrent() == YES)
\r
1325 ERR_Error(ERR_MULTIPLE_DEFAULT, YES);
\r
1326 TK_SkipPast(TK_COLON);
\r
1334 if(BreakAncestor() == NO)
\r
1336 ERR_Error(ERR_MISPLACED_BREAK, YES);
\r
1337 TK_SkipPast(TK_SEMICOLON);
\r
1345 if(ContinueAncestor() == NO)
\r
1347 ERR_Error(ERR_MISPLACED_CONTINUE, YES);
\r
1348 TK_SkipPast(TK_SEMICOLON);
\r
1352 LeadingContinue();
\r
1355 case TK_CREATETRANSLATION:
\r
1356 LeadingCreateTranslation();
\r
1359 LeadingCompoundStatement(owner);
\r
1361 case TK_SEMICOLON:
\r
1366 LeadingIncDec(tk_Token);
\r
1377 //==========================================================================
\r
1379 // LeadingCompoundStatement
\r
1381 //==========================================================================
\r
1383 static void LeadingCompoundStatement(statement_t owner)
\r
1385 StatementLevel += AdjustStmtLevel[owner];
\r
1386 TK_NextToken(); // Eat the TK_LBRACE
\r
1387 do ; while(ProcessStatement(owner) == YES);
\r
1388 TK_TokenMustBe(TK_RBRACE, ERR_INVALID_STATEMENT);
\r
1390 StatementLevel -= AdjustStmtLevel[owner];
\r
1393 //==========================================================================
\r
1395 // LeadingVarDeclare
\r
1397 //==========================================================================
\r
1399 static void LeadingVarDeclare(void)
\r
1401 symbolNode_t *sym = NULL;
\r
1403 if(tk_Token == TK_STATIC)
\r
1406 if(tk_Token != TK_INT && tk_Token != TK_STR && tk_Token != TK_BOOL)
\r
1408 ERR_Error(ERR_BAD_VAR_TYPE, YES);
\r
1415 MS_Message(MSG_DEBUG, "---- LeadingVarDeclare ----\n");
\r
1418 TK_NextTokenMustBe(TK_IDENTIFIER, ERR_INVALID_IDENTIFIER);
\r
1420 if(ScriptVarCount == MAX_SCRIPT_VARIABLES)
\r
1422 ERR_Error(InsideFunction
\r
1423 ? ERR_TOO_MANY_FUNCTION_VARS
\r
1424 : ERR_TOO_MANY_SCRIPT_VARS,
\r
1430 if(SY_FindLocal(tk_String) != NULL)
\r
1432 ERR_Error(ERR_REDEFINED_IDENTIFIER, YES, tk_String);
\r
1436 sym = SY_InsertLocal(tk_String, SY_SCRIPTVAR);
\r
1437 sym->info.var.index = ScriptVarCount;
\r
1441 if(tk_Token == TK_LBRACKET)
\r
1443 ERR_Error(ERR_ARRAY_MAPVAR_ONLY, YES);
\r
1444 do ; while(TK_NextToken() != TK_COMMA && tk_Token != TK_SEMICOLON);
\r
1446 else if(tk_Token == TK_ASSIGN)
\r
1452 PC_AppendCmd(PCD_ASSIGNSCRIPTVAR);
\r
1453 PC_AppendShrink(sym->info.var.index);
\r
1456 } while(tk_Token == TK_COMMA);
\r
1457 TK_TokenMustBe(TK_SEMICOLON, ERR_MISSING_SEMICOLON);
\r
1461 //==========================================================================
\r
1463 // LeadingLineSpecial
\r
1465 //==========================================================================
\r
1467 static void LeadingLineSpecial(boolean executewait)
\r
1474 U_BYTE specialValue;
\r
1477 MS_Message(MSG_DEBUG, "---- LeadingLineSpecial ----\n");
\r
1478 argCountMin = tk_SpecialArgCount & 0xffff;
\r
1479 argCountMax = tk_SpecialArgCount >> 16;
\r
1480 specialValue = tk_SpecialValue;
\r
1481 TK_NextTokenMustBe(TK_LPAREN, ERR_MISSING_LPAREN);
\r
1483 if(argCountMax > 0)
\r
1485 if(TK_NextToken() == TK_CONST)
\r
1487 TK_NextTokenMustBe(TK_COLON, ERR_MISSING_COLON);
\r
1497 if(i == argCountMax)
\r
1499 ERR_Error(ERR_BAD_LSPEC_ARG_COUNT, YES);
\r
1500 i = argCountMax+1;
\r
1505 argSave[i] = EvalConstExpression();
\r
1510 if (i == 0 && executewait)
\r
1512 PC_AppendCmd(PCD_DUP);
\r
1515 if(i < argCountMax)
\r
1519 } while(tk_Token == TK_COMMA);
\r
1520 if(i < argCountMin)
\r
1522 ERR_Error(ERR_BAD_LSPEC_ARG_COUNT, YES);
\r
1523 TK_SkipPast(TK_SEMICOLON);
\r
1530 // [RH] I added some zero-argument specials without realizing that
\r
1531 // ACS won't allow for less than one, so fake them as one-argument
\r
1532 // specials with a parameter of 0.
\r
1538 TK_TokenMustBe(TK_RPAREN, ERR_MISSING_RPAREN);
\r
1539 TK_NextTokenMustBe(TK_SEMICOLON, ERR_MISSING_SEMICOLON);
\r
1542 PC_AppendCmd(PCD_LSPEC1+(argCount-1));
\r
1545 PC_AppendLong(specialValue);
\r
1549 PC_AppendByte(specialValue);
\r
1553 PC_AppendCmd(PCD_SCRIPTWAIT);
\r
1558 boolean uselongform;
\r
1562 PC_AppendCmd(PCD_LSPEC1DIRECT+(argCount-1));
\r
1563 PC_AppendLong(specialValue);
\r
1564 uselongform = YES;
\r
1569 for (i = 0; i < argCount; i++)
\r
1571 if ((unsigned int)argSave[i] > 255)
\r
1573 uselongform = YES;
\r
1577 PC_AppendCmd((argCount-1)+(uselongform?PCD_LSPEC1DIRECT:PCD_LSPEC1DIRECTB));
\r
1578 PC_AppendByte(specialValue);
\r
1582 for (i = 0; i < argCount; i++)
\r
1584 PC_AppendLong(argSave[i]);
\r
1589 for (i = 0; i < argCount; i++)
\r
1591 PC_AppendByte((U_BYTE)argSave[i]);
\r
1596 PC_AppendCmd(PCD_SCRIPTWAITDIRECT);
\r
1597 PC_AppendLong(argSave[0]);
\r
1603 //==========================================================================
\r
1605 // LeadingIdentifier
\r
1607 //==========================================================================
\r
1609 static void LeadingIdentifier(void)
\r
1611 symbolNode_t *sym;
\r
1613 sym = SpeculateSymbol(tk_String, NO);
\r
1617 case SY_SCRIPTVAR:
\r
1618 case SY_SCRIPTALIAS:
\r
1621 case SY_GLOBALVAR:
\r
1622 case SY_WORLDARRAY:
\r
1623 case SY_GLOBALARRAY:
\r
1624 LeadingVarAssign(sym);
\r
1626 case SY_INTERNFUNC:
\r
1627 LeadingInternFunc(sym);
\r
1629 case SY_SCRIPTFUNC:
\r
1630 LeadingScriptFunc(sym);
\r
1637 //==========================================================================
\r
1639 // LeadingInternFunc
\r
1641 //==========================================================================
\r
1643 static void LeadingInternFunc(symbolNode_t *sym)
\r
1645 if(InsideFunction && sym->info.internFunc.latent)
\r
1647 ERR_Error(ERR_LATENT_IN_FUNC, YES);
\r
1649 ProcessInternFunc(sym);
\r
1650 if(sym->info.internFunc.hasReturnValue == YES)
\r
1652 PC_AppendCmd(PCD_DROP);
\r
1654 TK_TokenMustBe(TK_SEMICOLON, ERR_MISSING_SEMICOLON);
\r
1658 //==========================================================================
\r
1660 // ProcessInternFunc
\r
1662 //==========================================================================
\r
1664 static void ProcessInternFunc(symbolNode_t *sym)
\r
1671 boolean specialDirect;
\r
1674 MS_Message(MSG_DEBUG, "---- ProcessInternFunc ----\n");
\r
1675 argCount = sym->info.internFunc.argCount;
\r
1676 optMask = sym->info.internFunc.optMask;
\r
1677 outMask = sym->info.internFunc.outMask;
\r
1678 TK_NextTokenMustBe(TK_LPAREN, ERR_MISSING_LPAREN);
\r
1679 if(TK_NextToken() == TK_CONST)
\r
1681 TK_NextTokenMustBe(TK_COLON, ERR_MISSING_COLON);
\r
1682 if(sym->info.internFunc.directCommand == PCD_NOP)
\r
1684 ERR_Error(ERR_NO_DIRECT_VER, YES, NULL);
\r
1686 specialDirect = NO;
\r
1691 if (pc_NoShrink || argCount > 2 ||
\r
1692 (sym->info.internFunc.directCommand != PCD_DELAYDIRECT &&
\r
1693 sym->info.internFunc.directCommand != PCD_RANDOMDIRECT))
\r
1695 specialDirect = NO;
\r
1696 PC_AppendCmd(sym->info.internFunc.directCommand);
\r
1700 specialDirect = YES;
\r
1708 specialDirect = NO; // keep GCC quiet
\r
1713 if(tk_Token == TK_RPAREN)
\r
1715 ERR_Error(ERR_MISSING_PARAM, YES);
\r
1719 TK_Undo(); // Adjust for first expression
\r
1724 ERR_Error(ERR_BAD_ARG_COUNT, YES);
\r
1725 TK_SkipTo(TK_SEMICOLON);
\r
1732 if (tk_Token != TK_COMMA)
\r
1734 if (specialDirect)
\r
1736 argSave[i] = EvalConstExpression();
\r
1740 PC_AppendLong(EvalConstExpression());
\r
1747 if (specialDirect)
\r
1758 ERR_Error(ERR_MISSING_PARAM, YES);
\r
1764 if (tk_Token != TK_COMMA)
\r
1766 if (!(outMask & 1))
\r
1770 else if (tk_Token != TK_IDENTIFIER)
\r
1772 ERR_Error (ERR_PARM_MUST_BE_VAR, YES);
\r
1776 } while (tk_Token != TK_COMMA && tk_Token != TK_RPAREN);
\r
1780 symbolNode_t *sym = DemandSymbol (tk_String);
\r
1781 PC_AppendCmd (PCD_PUSHNUMBER);
\r
1782 switch (sym->type)
\r
1784 case SY_SCRIPTVAR:
\r
1785 PC_AppendLong(sym->info.var.index | OUTVAR_SCRIPT_SPEC);
\r
1788 PC_AppendLong(sym->info.var.index | OUTVAR_MAP_SPEC);
\r
1791 PC_AppendLong(sym->info.var.index | OUTVAR_WORLD_SPEC);
\r
1793 case SY_GLOBALVAR:
\r
1794 PC_AppendLong(sym->info.var.index | OUTVAR_GLOBAL_SPEC);
\r
1797 ERR_Error (ERR_PARM_MUST_BE_VAR, YES);
\r
1801 } while (tk_Token != TK_COMMA && tk_Token != TK_RPAREN);
\r
1811 PC_AppendPushVal(0);
\r
1815 ERR_Error(ERR_MISSING_PARAM, YES);
\r
1822 } while(tk_Token == TK_COMMA);
\r
1825 while (i < argCount && (optMask & 1))
\r
1827 if (direct == YES)
\r
1829 if (specialDirect)
\r
1840 PC_AppendPushVal(0);
\r
1845 if(i != argCount && i > 0)
\r
1847 ERR_Error(ERR_BAD_ARG_COUNT, YES);
\r
1849 TK_TokenMustBe(TK_RPAREN, argCount > 0 ? ERR_MISSING_RPAREN : ERR_BAD_ARG_COUNT);
\r
1852 PC_AppendCmd(sym->info.internFunc.stackCommand);
\r
1854 else if (specialDirect)
\r
1856 boolean uselongform = NO;
\r
1859 switch (sym->info.internFunc.directCommand)
\r
1861 case PCD_DELAYDIRECT:
\r
1862 shortpcd = PCD_DELAYDIRECTB;
\r
1864 case PCD_RANDOMDIRECT:
\r
1865 shortpcd = PCD_RANDOMDIRECTB;
\r
1868 uselongform = YES;
\r
1869 shortpcd = PCD_NOP;
\r
1875 for (i = 0; i < argCount; i++)
\r
1877 if ((unsigned int)argSave[i] > 255)
\r
1879 uselongform = YES;
\r
1887 PC_AppendCmd(sym->info.internFunc.directCommand);
\r
1888 for (i = 0; i < argCount; i++)
\r
1890 PC_AppendLong (argSave[i]);
\r
1895 PC_AppendCmd (shortpcd);
\r
1896 for (i = 0; i < argCount; i++)
\r
1898 PC_AppendByte ((U_BYTE)argSave[i]);
\r
1905 //==========================================================================
\r
1907 // LeadingScriptFunc
\r
1909 //==========================================================================
\r
1911 static void LeadingScriptFunc(symbolNode_t *sym)
\r
1913 ProcessScriptFunc(sym, YES);
\r
1914 TK_TokenMustBe(TK_SEMICOLON, ERR_MISSING_SEMICOLON);
\r
1919 //==========================================================================
\r
1921 // ProcessScriptFunc
\r
1923 //==========================================================================
\r
1925 static void ProcessScriptFunc(symbolNode_t *sym, boolean discardReturn)
\r
1930 MS_Message(MSG_DEBUG, "---- ProcessScriptFunc ----\n");
\r
1931 argCount = sym->info.scriptFunc.argCount;
\r
1932 TK_NextTokenMustBe(TK_LPAREN, ERR_MISSING_LPAREN);
\r
1936 TK_NextTokenMustBe(TK_RPAREN, ERR_BAD_ARG_COUNT);
\r
1938 else if(argCount > 0)
\r
1941 if(tk_Token == TK_RPAREN)
\r
1943 ERR_Error(ERR_BAD_ARG_COUNT, YES);
\r
1944 TK_SkipTo(TK_SEMICOLON);
\r
1952 ERR_Error(ERR_BAD_ARG_COUNT, YES);
\r
1953 TK_SkipTo(TK_SEMICOLON);
\r
1957 if (tk_Token != TK_COMMA)
\r
1963 ERR_Error(ERR_MISSING_PARAM, YES);
\r
1964 TK_SkipTo(TK_SEMICOLON);
\r
1968 } while(tk_Token == TK_COMMA);
\r
1971 { // Function has not been defined yet, so assume arg count is correct
\r
1973 while (tk_Token != TK_RPAREN)
\r
1977 if (tk_Token == TK_COMMA)
\r
1981 else if (tk_Token != TK_RPAREN)
\r
1983 ERR_Error(ERR_MISSING_PARAM, YES);
\r
1984 TK_SkipTo(TK_SEMICOLON);
\r
1989 else if(i != argCount)
\r
1991 ERR_Error(ERR_BAD_ARG_COUNT, YES);
\r
1992 TK_SkipTo(TK_SEMICOLON);
\r
1995 TK_TokenMustBe(TK_RPAREN, ERR_MISSING_RPAREN);
\r
1996 PC_AppendCmd(discardReturn ? PCD_CALLDISCARD : PCD_CALL);
\r
1997 if(sym->info.scriptFunc.predefined && ImportMode != IMPORT_Importing)
\r
1999 AddScriptFuncRef(sym, pc_Address, i);
\r
2003 PC_AppendLong(sym->info.scriptFunc.funcNumber);
\r
2007 PC_AppendByte((U_BYTE)sym->info.scriptFunc.funcNumber);
\r
2012 //==========================================================================
\r
2014 // BuildPrintString
\r
2016 //==========================================================================
\r
2018 static void BuildPrintString(void)
\r
2024 switch(TK_NextCharacter())
\r
2026 case 'a': // character array support [JB]
\r
2029 case 's': // string
\r
2030 printCmd = PCD_PRINTSTRING;
\r
2032 case 'l': // [RH] localized string
\r
2033 printCmd = PCD_PRINTLOCALIZED;
\r
2035 case 'i': // integer
\r
2036 case 'd': // decimal
\r
2037 printCmd = PCD_PRINTNUMBER;
\r
2039 case 'c': // character
\r
2040 printCmd = PCD_PRINTCHARACTER;
\r
2042 case 'n': // [BC] name
\r
2043 printCmd = PCD_PRINTNAME;
\r
2045 case 'f': // [RH] fixed point
\r
2046 printCmd = PCD_PRINTFIXED;
\r
2049 printCmd = PCD_PRINTSTRING;
\r
2050 ERR_Error(ERR_UNKNOWN_PRTYPE, YES);
\r
2053 TK_NextTokenMustBe(TK_COLON, ERR_MISSING_COLON);
\r
2056 PC_AppendCmd(printCmd);
\r
2057 } while(tk_Token == TK_COMMA);
\r
2060 //==========================================================================
\r
2062 // PrintCharArray // JB
\r
2064 //==========================================================================
\r
2066 static void PrintCharArray(void)
\r
2068 symbolNode_t *sym;
\r
2069 TK_NextTokenMustBe(TK_COLON, ERR_MISSING_COLON);
\r
2071 sym = SpeculateSymbol(tk_String, NO);
\r
2072 if((sym->type != SY_MAPARRAY) && (sym->type != SY_WORLDARRAY)
\r
2073 && (sym->type != SY_GLOBALARRAY))
\r
2075 ERR_Error(ERR_NOT_AN_ARRAY, YES);
\r
2078 if(sym->info.array.ndim > 1)
\r
2080 ParseArrayIndices(sym, sym->info.array.ndim-1);
\r
2084 PC_AppendPushVal(0);
\r
2087 PC_AppendPushVal(sym->info.array.index);
\r
2088 if(sym->type == SY_MAPARRAY)
\r
2090 PC_AppendCmd(PCD_PRINTMAPCHARARRAY);
\r
2092 else if(sym->type == SY_WORLDARRAY)
\r
2094 PC_AppendCmd(PCD_PRINTWORLDCHARARRAY);
\r
2096 else // if(sym->type == SY_GLOBALARRAY)
\r
2098 PC_AppendCmd(PCD_PRINTGLOBALCHARARRAY);
\r
2102 //==========================================================================
\r
2106 //==========================================================================
\r
2108 static void LeadingPrint(void)
\r
2110 tokenType_t stmtToken;
\r
2112 MS_Message(MSG_DEBUG, "---- LeadingPrint ----\n");
\r
2113 stmtToken = tk_Token; // Will be TK_PRINT or TK_PRINTBOLD or TK_LOG
\r
2114 PC_AppendCmd(PCD_BEGINPRINT);
\r
2115 TK_NextTokenMustBe(TK_LPAREN, ERR_MISSING_LPAREN);
\r
2116 BuildPrintString();
\r
2117 TK_TokenMustBe(TK_RPAREN, ERR_MISSING_RPAREN);
\r
2118 if(stmtToken == TK_PRINT)
\r
2120 PC_AppendCmd(PCD_ENDPRINT);
\r
2122 else if(stmtToken == TK_PRINTBOLD)
\r
2124 PC_AppendCmd(PCD_ENDPRINTBOLD);
\r
2128 PC_AppendCmd(PCD_ENDLOG);
\r
2130 TK_NextTokenMustBe(TK_SEMICOLON, ERR_MISSING_SEMICOLON);
\r
2134 //==========================================================================
\r
2136 // LeadingHudMessage
\r
2138 // hudmessage(str text; int type, int id, int color, fixed x, fixed y, fixed holdtime, ...)
\r
2140 //==========================================================================
\r
2142 static void LeadingHudMessage(void)
\r
2144 tokenType_t stmtToken;
\r
2147 MS_Message(MSG_DEBUG, "---- LeadingHudMessage ----\n");
\r
2148 stmtToken = tk_Token; // Will be TK_HUDMESSAGE or TK_HUDMESSAGEBOLD
\r
2149 PC_AppendCmd(PCD_BEGINPRINT);
\r
2150 TK_NextTokenMustBe(TK_LPAREN, ERR_MISSING_LPAREN);
\r
2151 BuildPrintString();
\r
2152 TK_TokenMustBe(TK_SEMICOLON, ERR_MISSING_PARAM);
\r
2153 PC_AppendCmd(PCD_MOREHUDMESSAGE);
\r
2154 for (i = 6; i > 0; i--)
\r
2159 TK_TokenMustBe(TK_COMMA, ERR_MISSING_PARAM);
\r
2161 if (tk_Token == TK_COMMA)
\r
2162 { // HUD message has optional parameters
\r
2163 PC_AppendCmd(PCD_OPTHUDMESSAGE);
\r
2168 } while (tk_Token == TK_COMMA);
\r
2170 TK_TokenMustBe(TK_RPAREN, ERR_MISSING_RPAREN);
\r
2171 PC_AppendCmd(stmtToken == TK_HUDMESSAGE ?
\r
2172 PCD_ENDHUDMESSAGE : PCD_ENDHUDMESSAGEBOLD);
\r
2173 TK_NextTokenMustBe(TK_SEMICOLON, ERR_MISSING_SEMICOLON);
\r
2177 //==========================================================================
\r
2179 // LeadingCreateTranslation
\r
2181 // Simple grammar:
\r
2183 // tranlationstmt: CreateTranslation ( exp opt_args ) ;
\r
2184 // opt_args: /* empty: just reset the translation */ | , arglist
\r
2185 // arglist: arg | arglist arg
\r
2186 // arg: range = replacement
\r
2187 // range: exp : exp
\r
2188 // replacement: palrep | colorrep
\r
2189 // palrep: exp : exp
\r
2190 // colorrep: [exp,exp,exp]:[exp,exp,exp]
\r
2191 //==========================================================================
\r
2193 static void LeadingCreateTranslation(void)
\r
2195 MS_Message(MSG_DEBUG, "---- LeadingCreateTranslation ----\n");
\r
2196 TK_NextTokenMustBe(TK_LPAREN, ERR_MISSING_LPAREN);
\r
2199 PC_AppendCmd(PCD_STARTTRANSLATION);
\r
2200 while (tk_Token == TK_COMMA)
\r
2203 EvalExpression(); // Get first palette entry in range
\r
2204 TK_TokenMustBe(TK_COLON, ERR_MISSING_COLON);
\r
2206 EvalExpression(); // Get second palette entry in range
\r
2207 TK_TokenMustBe(TK_ASSIGN, ERR_MISSING_ASSIGN);
\r
2210 if(tk_Token == TK_LBRACKET)
\r
2211 { // Replacement is color range
\r
2216 for(j = 2; j != 0; --j)
\r
2218 for(i = 3; i != 0; --i)
\r
2223 TK_TokenMustBe(TK_COMMA, ERR_MISSING_COMMA);
\r
2227 TK_TokenMustBe(TK_RBRACKET, ERR_MISSING_RBRACKET);
\r
2233 TK_TokenMustBe(TK_COLON, ERR_MISSING_COLON);
\r
2234 TK_NextTokenMustBe(TK_LBRACKET, ERR_MISSING_LBRACKET);
\r
2238 PC_AppendCmd(PCD_TRANSLATIONRANGE2);
\r
2241 { // Replacement is palette range
\r
2243 TK_TokenMustBe(TK_COLON, ERR_MISSING_COLON);
\r
2246 PC_AppendCmd(PCD_TRANSLATIONRANGE1);
\r
2249 PC_AppendCmd(PCD_ENDTRANSLATION);
\r
2250 TK_TokenMustBe(TK_RPAREN, ERR_MISSING_RPAREN);
\r
2251 TK_NextTokenMustBe(TK_SEMICOLON, ERR_MISSING_SEMICOLON);
\r
2255 //==========================================================================
\r
2259 //==========================================================================
\r
2261 static void LeadingIf(void)
\r
2266 MS_Message(MSG_DEBUG, "---- LeadingIf ----\n");
\r
2267 TK_NextTokenMustBe(TK_LPAREN, ERR_MISSING_LPAREN);
\r
2270 TK_TokenMustBe(TK_RPAREN, ERR_MISSING_RPAREN);
\r
2271 PC_AppendCmd(PCD_IFNOTGOTO);
\r
2272 jumpAddrPtr1 = pc_Address;
\r
2275 if(ProcessStatement(STMT_IF) == NO)
\r
2277 ERR_Error(ERR_INVALID_STATEMENT, YES);
\r
2279 if(tk_Token == TK_ELSE)
\r
2281 PC_AppendCmd(PCD_GOTO);
\r
2282 jumpAddrPtr2 = pc_Address;
\r
2284 PC_WriteLong(pc_Address, jumpAddrPtr1);
\r
2286 if(ProcessStatement(STMT_ELSE) == NO)
\r
2288 ERR_Error(ERR_INVALID_STATEMENT, YES);
\r
2290 PC_WriteLong(pc_Address, jumpAddrPtr2);
\r
2294 PC_WriteLong(pc_Address, jumpAddrPtr1);
\r
2298 //==========================================================================
\r
2302 //==========================================================================
\r
2304 static void LeadingFor(void)
\r
2311 MS_Message(MSG_DEBUG, "---- LeadingFor ----\n");
\r
2312 TK_NextTokenMustBe(TK_LPAREN, ERR_MISSING_LPAREN);
\r
2314 if(ProcessStatement(STMT_FOR) == NO)
\r
2316 ERR_Error(ERR_INVALID_STATEMENT, YES);
\r
2318 exprAddr = pc_Address;
\r
2320 TK_TokenMustBe(TK_SEMICOLON, ERR_MISSING_SEMICOLON);
\r
2322 PC_AppendCmd(PCD_IFGOTO);
\r
2323 ifgotoAddr = pc_Address;
\r
2325 PC_AppendCmd(PCD_GOTO);
\r
2326 gotoAddr = pc_Address;
\r
2328 incAddr = pc_Address;
\r
2329 forSemicolonHack = TRUE;
\r
2330 if(ProcessStatement(STMT_FOR) == NO)
\r
2332 ERR_Error(ERR_INVALID_STATEMENT, YES);
\r
2334 forSemicolonHack = FALSE;
\r
2335 PC_AppendCmd(PCD_GOTO);
\r
2336 PC_AppendLong(exprAddr);
\r
2337 PC_WriteLong(pc_Address,ifgotoAddr);
\r
2338 if(ProcessStatement(STMT_FOR) == NO)
\r
2340 ERR_Error(ERR_INVALID_STATEMENT, YES);
\r
2342 PC_AppendCmd(PCD_GOTO);
\r
2343 PC_AppendLong(incAddr);
\r
2344 WriteContinues(incAddr);
\r
2346 PC_WriteLong(pc_Address,gotoAddr);
\r
2349 //==========================================================================
\r
2351 // LeadingWhileUntil
\r
2353 //==========================================================================
\r
2355 static void LeadingWhileUntil(void)
\r
2357 tokenType_t stmtToken;
\r
2361 MS_Message(MSG_DEBUG, "---- LeadingWhileUntil ----\n");
\r
2362 stmtToken = tk_Token;
\r
2363 topAddr = pc_Address;
\r
2364 TK_NextTokenMustBe(TK_LPAREN, ERR_MISSING_LPAREN);
\r
2367 TK_TokenMustBe(TK_RPAREN, ERR_MISSING_RPAREN);
\r
2368 PC_AppendCmd(stmtToken == TK_WHILE ? PCD_IFNOTGOTO : PCD_IFGOTO);
\r
2369 outAddrPtr = pc_Address;
\r
2372 if(ProcessStatement(STMT_WHILEUNTIL) == NO)
\r
2374 ERR_Error(ERR_INVALID_STATEMENT, YES);
\r
2376 PC_AppendCmd(PCD_GOTO);
\r
2377 PC_AppendLong(topAddr);
\r
2379 PC_WriteLong(pc_Address, outAddrPtr);
\r
2381 WriteContinues(topAddr);
\r
2385 //==========================================================================
\r
2389 //==========================================================================
\r
2391 static void LeadingDo(void)
\r
2395 tokenType_t stmtToken;
\r
2397 MS_Message(MSG_DEBUG, "---- LeadingDo ----\n");
\r
2398 topAddr = pc_Address;
\r
2400 if(ProcessStatement(STMT_DO) == NO)
\r
2402 ERR_Error(ERR_INVALID_STATEMENT, YES, NULL);
\r
2404 if(tk_Token != TK_WHILE && tk_Token != TK_UNTIL)
\r
2406 ERR_Error(ERR_BAD_DO_STATEMENT, YES, NULL);
\r
2407 TK_SkipPast(TK_SEMICOLON);
\r
2410 stmtToken = tk_Token;
\r
2411 TK_NextTokenMustBe(TK_LPAREN, ERR_MISSING_LPAREN);
\r
2412 exprAddr = pc_Address;
\r
2415 TK_TokenMustBe(TK_RPAREN, ERR_MISSING_RPAREN);
\r
2416 TK_NextTokenMustBe(TK_SEMICOLON, ERR_MISSING_SEMICOLON);
\r
2417 PC_AppendCmd(stmtToken == TK_WHILE ? PCD_IFGOTO : PCD_IFNOTGOTO);
\r
2418 PC_AppendLong(topAddr);
\r
2419 WriteContinues(exprAddr);
\r
2424 //==========================================================================
\r
2428 //==========================================================================
\r
2430 static void LeadingSwitch(void)
\r
2432 int switcherAddrPtr;
\r
2434 caseInfo_t *cInfo;
\r
2435 int defaultAddress;
\r
2437 MS_Message(MSG_DEBUG, "---- LeadingSwitch ----\n");
\r
2439 TK_NextTokenMustBe(TK_LPAREN, ERR_MISSING_LPAREN);
\r
2442 TK_TokenMustBe(TK_RPAREN, ERR_MISSING_RPAREN);
\r
2444 PC_AppendCmd(PCD_GOTO);
\r
2445 switcherAddrPtr = pc_Address;
\r
2449 if(ProcessStatement(STMT_SWITCH) == NO)
\r
2451 ERR_Error(ERR_INVALID_STATEMENT, YES, NULL);
\r
2454 PC_AppendCmd(PCD_GOTO);
\r
2455 outAddrPtr = pc_Address;
\r
2458 PC_WriteLong(pc_Address, switcherAddrPtr);
\r
2459 defaultAddress = 0;
\r
2463 while((cInfo = GetCaseInfo()) != NULL)
\r
2465 if(cInfo->isDefault == YES)
\r
2467 defaultAddress = cInfo->address;
\r
2470 PC_AppendCmd(PCD_CASEGOTO);
\r
2471 PC_AppendLong(cInfo->value);
\r
2472 PC_AppendLong(cInfo->address);
\r
2475 else if(CaseIndex != 0)
\r
2477 caseInfo_t *maxCase = &CaseInfo[CaseIndex];
\r
2478 caseInfo_t *minCase = maxCase;
\r
2480 // [RH] Sort cases so that the VM can handle them with
\r
2481 // a quick binary search.
\r
2482 while((cInfo = GetCaseInfo()) != NULL)
\r
2486 qsort(minCase, maxCase - minCase, sizeof(caseInfo_t), CaseInfoCmp);
\r
2487 if(minCase->isDefault == YES)
\r
2489 defaultAddress = minCase->address;
\r
2492 if (minCase < maxCase)
\r
2494 PC_AppendCmd(PCD_CASEGOTOSORTED);
\r
2495 if(pc_Address%4 != 0)
\r
2496 { // Align to a 4-byte boundary
\r
2498 PC_Append((void *)&pad, 4-(pc_Address%4));
\r
2500 PC_AppendLong(maxCase - minCase);
\r
2501 for(; minCase < maxCase; ++minCase)
\r
2503 PC_AppendLong(minCase->value);
\r
2504 PC_AppendLong(minCase->address);
\r
2508 PC_AppendCmd(PCD_DROP);
\r
2510 if(defaultAddress != 0)
\r
2512 PC_AppendCmd(PCD_GOTO);
\r
2513 PC_AppendLong(defaultAddress);
\r
2516 PC_WriteLong(pc_Address, outAddrPtr);
\r
2521 //==========================================================================
\r
2525 //==========================================================================
\r
2527 static void LeadingCase(void)
\r
2529 MS_Message(MSG_DEBUG, "---- LeadingCase ----\n");
\r
2531 PushCase(EvalConstExpression(), NO);
\r
2532 TK_TokenMustBe(TK_COLON, ERR_MISSING_COLON);
\r
2536 //==========================================================================
\r
2540 //==========================================================================
\r
2542 static void LeadingDefault(void)
\r
2544 MS_Message(MSG_DEBUG, "---- LeadingDefault ----\n");
\r
2545 TK_NextTokenMustBe(TK_COLON, ERR_MISSING_COLON);
\r
2550 //==========================================================================
\r
2554 //==========================================================================
\r
2556 static void PushCase(int value, boolean isDefault)
\r
2558 if(CaseIndex == MAX_CASE)
\r
2560 ERR_Exit(ERR_CASE_OVERFLOW, YES);
\r
2562 CaseInfo[CaseIndex].level = StatementLevel;
\r
2563 CaseInfo[CaseIndex].value = value;
\r
2564 CaseInfo[CaseIndex].isDefault = isDefault;
\r
2565 CaseInfo[CaseIndex].address = pc_Address;
\r
2569 //==========================================================================
\r
2573 //==========================================================================
\r
2575 static caseInfo_t *GetCaseInfo(void)
\r
2577 if(CaseIndex == 0)
\r
2581 if(CaseInfo[CaseIndex-1].level > StatementLevel)
\r
2583 return &CaseInfo[--CaseIndex];
\r
2588 //==========================================================================
\r
2592 //==========================================================================
\r
2594 static int CaseInfoCmp (const void *a, const void *b)
\r
2596 const caseInfo_t *ca = (const caseInfo_t *)a;
\r
2597 const caseInfo_t *cb = (const caseInfo_t *)b;
\r
2599 // The default case always gets moved to the front.
\r
2608 return ca->value - cb->value;
\r
2611 //==========================================================================
\r
2613 // DefaultInCurrent
\r
2615 //==========================================================================
\r
2617 static boolean DefaultInCurrent(void)
\r
2621 for(i = 0; i < CaseIndex; i++)
\r
2623 if(CaseInfo[i].isDefault == YES
\r
2624 && CaseInfo[i].level == StatementLevel)
\r
2632 //==========================================================================
\r
2636 //==========================================================================
\r
2638 static void LeadingBreak(void)
\r
2640 MS_Message(MSG_DEBUG, "---- LeadingBreak ----\n");
\r
2641 TK_NextTokenMustBe(TK_SEMICOLON, ERR_MISSING_SEMICOLON);
\r
2642 PC_AppendCmd(PCD_GOTO);
\r
2648 //==========================================================================
\r
2652 //==========================================================================
\r
2654 static void PushBreak(void)
\r
2656 if(BreakIndex == MAX_CASE)
\r
2658 ERR_Exit(ERR_BREAK_OVERFLOW, YES);
\r
2660 BreakInfo[BreakIndex].level = StatementLevel;
\r
2661 BreakInfo[BreakIndex].addressPtr = pc_Address;
\r
2665 //==========================================================================
\r
2669 //==========================================================================
\r
2671 static void WriteBreaks(void)
\r
2673 while(BreakIndex && BreakInfo[BreakIndex-1].level > StatementLevel)
\r
2675 PC_WriteLong(pc_Address, BreakInfo[--BreakIndex].addressPtr);
\r
2679 //==========================================================================
\r
2683 // Returns YES if the current statement history contains a break root
\r
2686 //==========================================================================
\r
2688 static boolean BreakAncestor(void)
\r
2692 for(i = 0; i < StatementIndex; i++)
\r
2694 if(IsBreakRoot[StatementHistory[i]])
\r
2702 //==========================================================================
\r
2704 // LeadingContinue
\r
2706 //==========================================================================
\r
2708 static void LeadingContinue(void)
\r
2710 MS_Message(MSG_DEBUG, "---- LeadingContinue ----\n");
\r
2711 TK_NextTokenMustBe(TK_SEMICOLON, ERR_MISSING_SEMICOLON);
\r
2712 PC_AppendCmd(PCD_GOTO);
\r
2718 //==========================================================================
\r
2722 //==========================================================================
\r
2724 static void PushContinue(void)
\r
2726 if(ContinueIndex == MAX_CONTINUE)
\r
2728 ERR_Exit(ERR_CONTINUE_OVERFLOW, YES);
\r
2730 ContinueInfo[ContinueIndex].level = StatementLevel;
\r
2731 ContinueInfo[ContinueIndex].addressPtr = pc_Address;
\r
2735 //==========================================================================
\r
2739 //==========================================================================
\r
2741 static void WriteContinues(int address)
\r
2743 if(ContinueIndex == 0)
\r
2747 while(ContinueInfo[ContinueIndex-1].level > StatementLevel)
\r
2749 PC_WriteLong(address, ContinueInfo[--ContinueIndex].addressPtr);
\r
2753 //==========================================================================
\r
2755 // ContinueAncestor
\r
2757 //==========================================================================
\r
2759 static boolean ContinueAncestor(void)
\r
2763 for(i = 0; i < StatementIndex; i++)
\r
2765 if(IsContinueRoot[StatementHistory[i]])
\r
2773 //==========================================================================
\r
2777 //==========================================================================
\r
2779 static void LeadingIncDec(int token)
\r
2781 symbolNode_t *sym;
\r
2783 MS_Message(MSG_DEBUG, "---- LeadingIncDec ----\n");
\r
2784 TK_NextTokenMustBe(TK_IDENTIFIER, ERR_INCDEC_OP_ON_NON_VAR);
\r
2785 sym = DemandSymbol(tk_String);
\r
2786 if(sym->type != SY_SCRIPTVAR && sym->type != SY_MAPVAR
\r
2787 && sym->type != SY_WORLDVAR && sym->type != SY_GLOBALVAR
\r
2788 && sym->type != SY_MAPARRAY && sym->type != SY_GLOBALARRAY
\r
2789 && sym->type != SY_WORLDARRAY && sym->type != SY_SCRIPTALIAS)
\r
2791 ERR_Error(ERR_INCDEC_OP_ON_NON_VAR, YES);
\r
2792 TK_SkipPast(TK_SEMICOLON);
\r
2796 if(sym->type == SY_MAPARRAY || sym->type == SY_WORLDARRAY
\r
2797 || sym->type == SY_GLOBALARRAY)
\r
2799 ParseArrayIndices(sym, sym->info.array.ndim);
\r
2801 else if(tk_Token == TK_LBRACKET)
\r
2803 ERR_Error(ERR_NOT_AN_ARRAY, YES, sym->name);
\r
2804 while(tk_Token == TK_LBRACKET)
\r
2806 TK_SkipPast(TK_RBRACKET);
\r
2809 PC_AppendCmd(GetIncDecPCD(token, sym->type));
\r
2810 PC_AppendShrink(sym->info.var.index);
\r
2811 if(forSemicolonHack)
\r
2813 TK_TokenMustBe(TK_RPAREN, ERR_MISSING_RPAREN);
\r
2817 TK_TokenMustBe(TK_SEMICOLON, ERR_MISSING_SEMICOLON);
\r
2822 //==========================================================================
\r
2824 // LeadingVarAssign
\r
2826 //==========================================================================
\r
2828 static void LeadingVarAssign(symbolNode_t *sym)
\r
2831 tokenType_t assignToken;
\r
2833 MS_Message(MSG_DEBUG, "---- LeadingVarAssign ----\n");
\r
2837 TK_NextToken(); // Fetch assignment operator
\r
2838 if(sym->type == SY_MAPARRAY || sym->type == SY_WORLDARRAY
\r
2839 || sym->type == SY_GLOBALARRAY)
\r
2841 ParseArrayIndices(sym, sym->info.array.ndim);
\r
2843 else if(tk_Token == TK_LBRACKET)
\r
2845 ERR_Error(ERR_NOT_AN_ARRAY, YES, sym->name);
\r
2846 while(tk_Token == TK_LBRACKET)
\r
2848 TK_SkipPast(TK_RBRACKET);
\r
2851 if(tk_Token == TK_INC || tk_Token == TK_DEC)
\r
2852 { // Postfix increment or decrement
\r
2853 PC_AppendCmd(GetIncDecPCD(tk_Token, sym->type));
\r
2856 PC_AppendLong(sym->info.var.index);
\r
2860 PC_AppendByte(sym->info.var.index);
\r
2865 { // Normal operator
\r
2866 if(TK_Member(AssignOps) == NO)
\r
2868 ERR_Error(ERR_MISSING_ASSIGN_OP, YES);
\r
2869 TK_SkipPast(TK_SEMICOLON);
\r
2872 assignToken = tk_Token;
\r
2875 PC_AppendCmd(GetAssignPCD(assignToken, sym->type));
\r
2876 PC_AppendShrink(sym->info.var.index);
\r
2878 if(tk_Token == TK_COMMA)
\r
2880 TK_NextTokenMustBe(TK_IDENTIFIER, ERR_BAD_ASSIGNMENT);
\r
2881 sym = DemandSymbol(tk_String);
\r
2882 if(sym->type != SY_SCRIPTVAR && sym->type != SY_MAPVAR
\r
2883 && sym->type != SY_WORLDVAR && sym->type != SY_GLOBALVAR
\r
2884 && sym->type != SY_WORLDARRAY && sym->type != SY_GLOBALARRAY
\r
2885 && sym->type != SY_SCRIPTALIAS)
\r
2887 ERR_Error(ERR_BAD_ASSIGNMENT, YES);
\r
2888 TK_SkipPast(TK_SEMICOLON);
\r
2894 TK_TokenMustBe(TK_SEMICOLON, ERR_MISSING_SEMICOLON);
\r
2898 } while(done == NO);
\r
2901 //==========================================================================
\r
2905 //==========================================================================
\r
2907 static pcd_t GetAssignPCD(tokenType_t token, symbolType_t symbol)
\r
2910 static tokenType_t tokenLookup[] =
\r
2912 TK_ASSIGN, TK_ADDASSIGN, TK_SUBASSIGN,
\r
2913 TK_MULASSIGN, TK_DIVASSIGN, TK_MODASSIGN,
\r
2914 TK_ANDASSIGN, TK_EORASSIGN, TK_ORASSIGN,
\r
2915 TK_LSASSIGN, TK_RSASSIGN
\r
2917 static symbolType_t symbolLookup[] =
\r
2919 SY_SCRIPTVAR, SY_MAPVAR, SY_WORLDVAR, SY_GLOBALVAR, SY_MAPARRAY,
\r
2920 SY_WORLDARRAY, SY_GLOBALARRAY
\r
2922 static pcd_t assignmentLookup[11][7] =
\r
2924 { PCD_ASSIGNSCRIPTVAR, PCD_ASSIGNMAPVAR, PCD_ASSIGNWORLDVAR, PCD_ASSIGNGLOBALVAR, PCD_ASSIGNMAPARRAY, PCD_ASSIGNWORLDARRAY, PCD_ASSIGNGLOBALARRAY },
\r
2925 { PCD_ADDSCRIPTVAR, PCD_ADDMAPVAR, PCD_ADDWORLDVAR, PCD_ADDGLOBALVAR, PCD_ADDMAPARRAY, PCD_ADDWORLDARRAY, PCD_ADDGLOBALARRAY },
\r
2926 { PCD_SUBSCRIPTVAR, PCD_SUBMAPVAR, PCD_SUBWORLDVAR, PCD_SUBGLOBALVAR, PCD_SUBMAPARRAY, PCD_SUBWORLDARRAY, PCD_SUBGLOBALARRAY },
\r
2927 { PCD_MULSCRIPTVAR, PCD_MULMAPVAR, PCD_MULWORLDVAR, PCD_MULGLOBALVAR, PCD_MULMAPARRAY, PCD_MULWORLDARRAY, PCD_MULGLOBALARRAY },
\r
2928 { PCD_DIVSCRIPTVAR, PCD_DIVMAPVAR, PCD_DIVWORLDVAR, PCD_DIVGLOBALVAR, PCD_DIVMAPARRAY, PCD_DIVWORLDARRAY, PCD_DIVGLOBALARRAY },
\r
2929 { PCD_MODSCRIPTVAR, PCD_MODMAPVAR, PCD_MODWORLDVAR, PCD_MODGLOBALVAR, PCD_MODMAPARRAY, PCD_MODWORLDARRAY, PCD_MODGLOBALARRAY },
\r
2930 { PCD_ANDSCRIPTVAR, PCD_ANDMAPVAR, PCD_ANDWORLDVAR, PCD_ANDGLOBALVAR, PCD_ANDMAPARRAY, PCD_ANDWORLDARRAY, PCD_ANDGLOBALARRAY },
\r
2931 { PCD_EORSCRIPTVAR, PCD_EORMAPVAR, PCD_EORWORLDVAR, PCD_EORGLOBALVAR, PCD_EORMAPARRAY, PCD_EORWORLDARRAY, PCD_EORGLOBALARRAY },
\r
2932 { PCD_ORSCRIPTVAR, PCD_ORMAPVAR, PCD_ORWORLDVAR, PCD_ORGLOBALVAR, PCD_ORMAPARRAY, PCD_ORWORLDARRAY, PCD_ORGLOBALARRAY },
\r
2933 { PCD_LSSCRIPTVAR, PCD_LSMAPVAR, PCD_LSWORLDVAR, PCD_LSGLOBALVAR, PCD_LSMAPARRAY, PCD_LSWORLDARRAY, PCD_LSGLOBALARRAY },
\r
2934 { PCD_RSSCRIPTVAR, PCD_RSMAPVAR, PCD_RSWORLDVAR, PCD_RSGLOBALVAR, PCD_RSMAPARRAY, PCD_RSWORLDARRAY, PCD_RSGLOBALARRAY }
\r
2937 for(i = 0; i < ARRAY_SIZE(tokenLookup); ++i)
\r
2939 if(tokenLookup[i] == token)
\r
2941 for(j = 0; j < ARRAY_SIZE(symbolLookup); ++j)
\r
2943 if (symbolLookup[j] == symbol)
\r
2945 return assignmentLookup[i][j];
\r
2954 //==========================================================================
\r
2958 //==========================================================================
\r
2960 static void LeadingSuspend(void)
\r
2962 MS_Message(MSG_DEBUG, "---- LeadingSuspend ----\n");
\r
2963 if(InsideFunction)
\r
2965 ERR_Error(ERR_SUSPEND_IN_FUNCTION, YES);
\r
2967 TK_NextTokenMustBe(TK_SEMICOLON, ERR_MISSING_SEMICOLON);
\r
2968 PC_AppendCmd(PCD_SUSPEND);
\r
2972 //==========================================================================
\r
2974 // LeadingTerminate
\r
2976 //==========================================================================
\r
2978 static void LeadingTerminate(void)
\r
2980 MS_Message(MSG_DEBUG, "---- LeadingTerminate ----\n");
\r
2981 if(InsideFunction)
\r
2983 ERR_Error(ERR_TERMINATE_IN_FUNCTION, YES);
\r
2985 TK_NextTokenMustBe(TK_SEMICOLON, ERR_MISSING_SEMICOLON);
\r
2986 PC_AppendCmd(PCD_TERMINATE);
\r
2990 //==========================================================================
\r
2994 //==========================================================================
\r
2996 static void LeadingRestart(void)
\r
2998 MS_Message(MSG_DEBUG, "---- LeadingRestart ----\n");
\r
2999 if(InsideFunction)
\r
3001 ERR_Error(ERR_RESTART_IN_FUNCTION, YES);
\r
3003 TK_NextTokenMustBe(TK_SEMICOLON, ERR_MISSING_SEMICOLON);
\r
3004 PC_AppendCmd(PCD_RESTART);
\r
3008 //==========================================================================
\r
3012 //==========================================================================
\r
3014 static void LeadingReturn(void)
\r
3016 MS_Message(MSG_DEBUG, "---- LeadingReturn ----\n");
\r
3017 if(!InsideFunction)
\r
3019 ERR_Error(ERR_RETURN_OUTSIDE_FUNCTION, YES);
\r
3020 while (TK_NextToken () != TK_SEMICOLON)
\r
3022 if (tk_Token == TK_EOF)
\r
3029 if(tk_Token == TK_SEMICOLON)
\r
3031 if(InsideFunction->info.scriptFunc.hasReturnValue)
\r
3033 ERR_Error(ERR_MUST_RETURN_A_VALUE, YES);
\r
3035 PC_AppendCmd(PCD_RETURNVOID);
\r
3039 if(!InsideFunction->info.scriptFunc.hasReturnValue)
\r
3041 ERR_Error(ERR_MUST_NOT_RETURN_A_VALUE, YES);
\r
3044 TK_TokenMustBe(TK_SEMICOLON, ERR_MISSING_SEMICOLON);
\r
3045 PC_AppendCmd(PCD_RETURNVAL);
\r
3051 //==========================================================================
\r
3053 // EvalConstExpression
\r
3055 //==========================================================================
\r
3057 static int EvalConstExpression(void)
\r
3059 pa_ConstExprIsString = NO; // Used by PC_PutMapVariable
\r
3060 ExprStackIndex = 0;
\r
3061 ConstantExpression = YES;
\r
3063 if(ExprStackIndex != 1)
\r
3065 ERR_Error(ERR_BAD_CONST_EXPR, YES, NULL);
\r
3067 ExprStackIndex = 1;
\r
3069 return PopExStk();
\r
3072 //==========================================================================
\r
3076 // [RH] Rewrote all the ExprLevA - ExprLevJ functions in favor of a single
\r
3077 // table-driven parser function.
\r
3079 //==========================================================================
\r
3081 static void EvalExpression(void)
\r
3083 ConstantExpression = NO;
\r
3087 static void ExprLevA(void)
\r
3092 // Operator precedence levels:
\r
3098 // Operators: == !=
\r
3099 // Operators: < <= > >=
\r
3100 // Operators: << >>
\r
3102 // Operators: * / %
\r
3104 static void ExprLevX(int level)
\r
3106 if(OpsList[level] == NULL)
\r
3108 boolean unaryMinus;
\r
3110 unaryMinus = FALSE;
\r
3111 if(tk_Token == TK_MINUS)
\r
3113 unaryMinus = TRUE;
\r
3116 if(ConstantExpression == YES)
\r
3118 ConstExprFactor();
\r
3124 if(unaryMinus == TRUE)
\r
3126 SendExprCommand(PCD_UNARYMINUS);
\r
3131 ExprLevX(level + 1);
\r
3132 while(TK_Member(OpsList[level]))
\r
3134 tokenType_t token = tk_Token;
\r
3136 ExprLevX(level + 1);
\r
3137 SendExprCommand(TokenToPCD(token));
\r
3142 static void ExprLineSpecial(void)
\r
3144 U_BYTE specialValue = tk_SpecialValue;
\r
3145 int argCountMin = tk_SpecialArgCount & 0xffff;
\r
3146 int argCountMax = tk_SpecialArgCount >> 16;
\r
3148 // There are two ways to use a special in an expression:
\r
3149 // 1. The special name by itself returns the special's number.
\r
3150 // 2. The special followed by parameters actually executes the special.
\r
3152 if(tk_Token != TK_LPAREN)
\r
3154 PC_AppendPushVal(tk_SpecialValue);
\r
3161 if(tk_Token != TK_RPAREN)
\r
3169 } while(tk_Token == TK_COMMA);
\r
3171 if(argCount < argCountMin || argCount > argCountMax)
\r
3173 ERR_Error(ERR_BAD_LSPEC_ARG_COUNT, YES);
\r
3176 for(; argCount < 5; ++argCount)
\r
3178 PC_AppendPushVal(0);
\r
3180 TK_TokenMustBe(TK_RPAREN, ERR_MISSING_RPAREN);
\r
3182 PC_AppendCmd(PCD_LSPEC5RESULT);
\r
3185 PC_AppendLong(specialValue);
\r
3189 PC_AppendByte(specialValue);
\r
3194 static void ExprFactor(void)
\r
3196 symbolNode_t *sym;
\r
3197 tokenType_t opToken;
\r
3202 if (ImportMode != IMPORT_Importing)
\r
3204 tk_Number = STR_Find(tk_String);
\r
3205 PC_AppendPushVal(tk_Number);
\r
3206 if (ImportMode == IMPORT_Exporting)
\r
3208 // The VM identifies strings by storing a library ID in the
\r
3209 // high word of the string index. The library ID is not
\r
3210 // known until the script actually gets loaded into the game,
\r
3211 // so we need to use this p-code to tack the ID of the
\r
3212 // currently running library to the index of the string that
\r
3213 // just got pushed onto the stack.
\r
3215 // Simply assuming that a string is from the current library
\r
3216 // is not good enough, because they can be passed around
\r
3217 // between libraries and the map's behavior. Thus, we need
\r
3218 // to know which object file a particular string belongs to.
\r
3220 // A specific example:
\r
3221 // A map's behavior calls a function in a library and passes
\r
3224 // LibFunc ("The library will do something with this string.");
\r
3226 // The library function needs to know that the string originated
\r
3227 // outside the library. Similarly, if a library function returns
\r
3228 // a string, the caller needs to know that the string did not
\r
3229 // originate from the same object file.
\r
3231 // And that's why strings have library IDs tacked onto them.
\r
3232 // The map's main behavior (i.e. an object that is not a library)
\r
3233 // always uses library ID 0 to identify its strings, so its
\r
3234 // strings don't need to be tagged.
\r
3235 PC_AppendCmd(PCD_TAGSTRING);
\r
3241 PC_AppendPushVal(tk_Number);
\r
3247 if(tk_Token != TK_RPAREN)
\r
3249 ERR_Error(ERR_BAD_EXPR, YES, NULL);
\r
3250 TK_SkipPast(TK_RPAREN);
\r
3260 PC_AppendCmd(PCD_NEGATELOGICAL);
\r
3265 PC_AppendCmd(PCD_NEGATEBINARY);
\r
3269 opToken = tk_Token;
\r
3270 TK_NextTokenMustBe(TK_IDENTIFIER, ERR_INCDEC_OP_ON_NON_VAR);
\r
3271 sym = DemandSymbol(tk_String);
\r
3272 if(sym->type != SY_SCRIPTVAR && sym->type != SY_MAPVAR
\r
3273 && sym->type != SY_WORLDVAR && sym->type != SY_GLOBALVAR
\r
3274 && sym->type != SY_MAPARRAY && sym->type != SY_WORLDARRAY
\r
3275 && sym->type != SY_GLOBALARRAY)
\r
3277 ERR_Error(ERR_INCDEC_OP_ON_NON_VAR, YES);
\r
3282 if(sym->type == SY_MAPARRAY || sym->type == SY_WORLDARRAY
\r
3283 || sym->type == SY_GLOBALARRAY)
\r
3285 ParseArrayIndices(sym, sym->info.array.ndim);
\r
3286 PC_AppendCmd(PCD_DUP);
\r
3288 else if(tk_Token == TK_LBRACKET)
\r
3290 ERR_Error(ERR_NOT_AN_ARRAY, YES, sym->name);
\r
3291 while(tk_Token == TK_LBRACKET)
\r
3293 TK_SkipPast(TK_RBRACKET);
\r
3296 PC_AppendCmd(GetIncDecPCD(opToken, sym->type));
\r
3297 PC_AppendShrink(sym->info.var.index);
\r
3298 PC_AppendCmd(GetPushVarPCD(sym->type));
\r
3299 PC_AppendShrink(sym->info.var.index);
\r
3302 case TK_IDENTIFIER:
\r
3303 sym = SpeculateSymbol(tk_String, YES);
\r
3306 case SY_SCRIPTALIAS:
\r
3310 case SY_WORLDARRAY:
\r
3311 case SY_GLOBALARRAY:
\r
3313 ParseArrayIndices(sym, sym->info.array.ndim);
\r
3315 case SY_SCRIPTVAR:
\r
3318 case SY_GLOBALVAR:
\r
3319 if(sym->type != SY_MAPARRAY && sym->type != SY_WORLDARRAY
\r
3320 && sym->type != SY_GLOBALARRAY)
\r
3323 if(tk_Token == TK_LBRACKET)
\r
3325 ERR_Error(ERR_NOT_AN_ARRAY, YES, sym->name);
\r
3326 while(tk_Token == TK_LBRACKET)
\r
3328 TK_SkipPast(TK_RBRACKET);
\r
3332 if((tk_Token == TK_INC || tk_Token == TK_DEC)
\r
3333 && (sym->type == SY_MAPARRAY || sym->type == SY_WORLDARRAY
\r
3334 || sym->type == SY_GLOBALARRAY))
\r
3336 PC_AppendCmd(PCD_DUP);
\r
3338 PC_AppendCmd(GetPushVarPCD(sym->type));
\r
3339 PC_AppendShrink(sym->info.var.index);
\r
3340 if(tk_Token == TK_INC || tk_Token == TK_DEC)
\r
3342 if(sym->type == SY_MAPARRAY || sym->type == SY_WORLDARRAY
\r
3343 || sym->type == SY_GLOBALARRAY)
\r
3345 PC_AppendCmd(PCD_SWAP);
\r
3347 PC_AppendCmd(GetIncDecPCD(tk_Token, sym->type));
\r
3348 PC_AppendShrink(sym->info.var.index);
\r
3352 case SY_INTERNFUNC:
\r
3353 if(sym->info.internFunc.hasReturnValue == NO)
\r
3355 ERR_Error(ERR_EXPR_FUNC_NO_RET_VAL, YES);
\r
3357 ProcessInternFunc(sym);
\r
3359 case SY_SCRIPTFUNC:
\r
3360 if(sym->info.scriptFunc.hasReturnValue == NO)
\r
3362 ERR_Error(ERR_EXPR_FUNC_NO_RET_VAL, YES);
\r
3364 ProcessScriptFunc(sym, NO);
\r
3367 ERR_Error(ERR_ILLEGAL_EXPR_IDENT, YES, tk_String);
\r
3372 case TK_LINESPECIAL:
\r
3373 ExprLineSpecial();
\r
3376 ERR_Error(ERR_BAD_EXPR, YES);
\r
3382 static void ConstExprFactor(void)
\r
3387 if (ImportMode != IMPORT_Importing)
\r
3389 int strnum = STR_Find(tk_String);
\r
3390 if (ImportMode == IMPORT_Exporting)
\r
3392 pa_ConstExprIsString = YES;
\r
3394 PushExStk(strnum);
\r
3398 // Importing, so it doesn't matter
\r
3404 PushExStk(tk_Number);
\r
3410 if(tk_Token != TK_RPAREN)
\r
3412 ERR_Error(ERR_BAD_CONST_EXPR, YES);
\r
3413 TK_SkipPast(TK_RPAREN);
\r
3422 ConstExprFactor();
\r
3423 SendExprCommand(PCD_NEGATELOGICAL);
\r
3426 ERR_Error(ERR_BAD_CONST_EXPR, YES);
\r
3428 while(tk_Token != TK_COMMA &&
\r
3429 tk_Token != TK_SEMICOLON &&
\r
3430 tk_Token != TK_RPAREN)
\r
3438 //==========================================================================
\r
3440 // SendExprCommand
\r
3442 //==========================================================================
\r
3444 static void SendExprCommand(pcd_t pcd)
\r
3448 if(ConstantExpression == NO)
\r
3450 PC_AppendCmd(pcd);
\r
3456 PushExStk(PopExStk()+PopExStk());
\r
3458 case PCD_SUBTRACT:
\r
3459 operand2 = PopExStk();
\r
3460 PushExStk(PopExStk()-operand2);
\r
3462 case PCD_MULTIPLY:
\r
3463 PushExStk(PopExStk()*PopExStk());
\r
3466 operand2 = PopExStk();
\r
3467 PushExStk(PopExStk()/operand2);
\r
3470 operand2 = PopExStk();
\r
3471 PushExStk(PopExStk()%operand2);
\r
3474 PushExStk(PopExStk() == PopExStk());
\r
3477 PushExStk(PopExStk() != PopExStk());
\r
3480 operand2 = PopExStk();
\r
3481 PushExStk(PopExStk() >= operand2);
\r
3484 operand2 = PopExStk();
\r
3485 PushExStk(PopExStk() <= operand2);
\r
3488 operand2 = PopExStk();
\r
3489 PushExStk(PopExStk() > operand2);
\r
3492 operand2 = PopExStk();
\r
3493 PushExStk(PopExStk() < operand2);
\r
3495 case PCD_ANDLOGICAL:
\r
3496 PushExStk(PopExStk() && PopExStk());
\r
3498 case PCD_ORLOGICAL:
\r
3499 PushExStk(PopExStk() || PopExStk());
\r
3501 case PCD_ANDBITWISE:
\r
3502 PushExStk(PopExStk()&PopExStk());
\r
3504 case PCD_ORBITWISE:
\r
3505 PushExStk(PopExStk()|PopExStk());
\r
3507 case PCD_EORBITWISE:
\r
3508 PushExStk(PopExStk()^PopExStk());
\r
3510 case PCD_NEGATELOGICAL:
\r
3511 PushExStk(!PopExStk());
\r
3514 operand2 = PopExStk();
\r
3515 PushExStk(PopExStk()<<operand2);
\r
3518 operand2 = PopExStk();
\r
3519 PushExStk(PopExStk()>>operand2);
\r
3521 case PCD_UNARYMINUS:
\r
3522 PushExStk(-PopExStk());
\r
3525 ERR_Exit(ERR_UNKNOWN_CONST_EXPR_PCD, YES);
\r
3530 //==========================================================================
\r
3534 //==========================================================================
\r
3536 static void PushExStk(int value)
\r
3538 if(ExprStackIndex == EXPR_STACK_DEPTH)
\r
3540 ERR_Exit(ERR_EXPR_STACK_OVERFLOW, YES);
\r
3542 ExprStack[ExprStackIndex++] = value;
\r
3545 //==========================================================================
\r
3549 //==========================================================================
\r
3551 static int PopExStk(void)
\r
3553 if(ExprStackIndex < 1)
\r
3555 ERR_Error(ERR_EXPR_STACK_EMPTY, YES);
\r
3558 return ExprStack[--ExprStackIndex];
\r
3561 //==========================================================================
\r
3565 //==========================================================================
\r
3567 static pcd_t TokenToPCD(tokenType_t token)
\r
3572 tokenType_t token;
\r
3574 } operatorLookup[] =
\r
3576 { TK_ORLOGICAL, PCD_ORLOGICAL },
\r
3577 { TK_ANDLOGICAL, PCD_ANDLOGICAL },
\r
3578 { TK_ORBITWISE, PCD_ORBITWISE },
\r
3579 { TK_EORBITWISE, PCD_EORBITWISE },
\r
3580 { TK_ANDBITWISE, PCD_ANDBITWISE },
\r
3581 { TK_EQ, PCD_EQ },
\r
3582 { TK_NE, PCD_NE },
\r
3583 { TK_LT, PCD_LT },
\r
3584 { TK_LE, PCD_LE },
\r
3585 { TK_GT, PCD_GT },
\r
3586 { TK_GE, PCD_GE },
\r
3587 { TK_LSHIFT, PCD_LSHIFT },
\r
3588 { TK_RSHIFT, PCD_RSHIFT },
\r
3589 { TK_PLUS, PCD_ADD },
\r
3590 { TK_MINUS, PCD_SUBTRACT },
\r
3591 { TK_ASTERISK, PCD_MULTIPLY },
\r
3592 { TK_SLASH, PCD_DIVIDE },
\r
3593 { TK_PERCENT, PCD_MODULUS },
\r
3594 { TK_NONE, PCD_NOP }
\r
3597 for(i = 0; operatorLookup[i].token != TK_NONE; i++)
\r
3599 if(operatorLookup[i].token == token)
\r
3601 return operatorLookup[i].pcd;
\r
3607 //==========================================================================
\r
3611 //==========================================================================
\r
3613 static pcd_t GetPushVarPCD(symbolType_t symType)
\r
3617 case SY_SCRIPTVAR:
\r
3618 return PCD_PUSHSCRIPTVAR;
\r
3620 return PCD_PUSHMAPVAR;
\r
3622 return PCD_PUSHWORLDVAR;
\r
3623 case SY_GLOBALVAR:
\r
3624 return PCD_PUSHGLOBALVAR;
\r
3626 return PCD_PUSHMAPARRAY;
\r
3627 case SY_WORLDARRAY:
\r
3628 return PCD_PUSHWORLDARRAY;
\r
3629 case SY_GLOBALARRAY:
\r
3630 return PCD_PUSHGLOBALARRAY;
\r
3637 //==========================================================================
\r
3641 //==========================================================================
\r
3643 static pcd_t GetIncDecPCD(tokenType_t token, symbolType_t symbol)
\r
3648 tokenType_t token;
\r
3649 symbolType_t symbol;
\r
3651 } incDecLookup[] =
\r
3653 { TK_INC, SY_SCRIPTVAR, PCD_INCSCRIPTVAR },
\r
3654 { TK_INC, SY_MAPVAR, PCD_INCMAPVAR },
\r
3655 { TK_INC, SY_WORLDVAR, PCD_INCWORLDVAR },
\r
3656 { TK_INC, SY_GLOBALVAR, PCD_INCGLOBALVAR },
\r
3657 { TK_INC, SY_MAPARRAY, PCD_INCMAPARRAY },
\r
3658 { TK_INC, SY_WORLDARRAY, PCD_INCWORLDARRAY },
\r
3659 { TK_INC, SY_GLOBALARRAY, PCD_INCGLOBALARRAY },
\r
3661 { TK_DEC, SY_SCRIPTVAR, PCD_DECSCRIPTVAR },
\r
3662 { TK_DEC, SY_MAPVAR, PCD_DECMAPVAR },
\r
3663 { TK_DEC, SY_WORLDVAR, PCD_DECWORLDVAR },
\r
3664 { TK_DEC, SY_GLOBALVAR, PCD_DECGLOBALVAR },
\r
3665 { TK_DEC, SY_MAPARRAY, PCD_DECMAPARRAY },
\r
3666 { TK_DEC, SY_WORLDARRAY, PCD_DECWORLDARRAY },
\r
3667 { TK_DEC, SY_GLOBALARRAY, PCD_DECGLOBALARRAY },
\r
3669 { TK_NONE, SY_DUMMY, PCD_NOP }
\r
3672 for(i = 0; incDecLookup[i].token != TK_NONE; i++)
\r
3674 if(incDecLookup[i].token == token
\r
3675 && incDecLookup[i].symbol == symbol)
\r
3677 return incDecLookup[i].pcd;
\r
3683 //==========================================================================
\r
3685 // ParseArrayIndices
\r
3687 //==========================================================================
\r
3689 static void ParseArrayIndices(symbolNode_t *sym, int requiredIndices)
\r
3691 boolean warned = NO;
\r
3694 if(requiredIndices > 0)
\r
3696 TK_TokenMustBe(TK_LBRACKET, ERR_MISSING_LBRACKET);
\r
3699 while(tk_Token == TK_LBRACKET)
\r
3702 if((sym->type == SY_MAPARRAY && i == requiredIndices) ||
\r
3703 (sym->type != SY_MAPARRAY && i > 0))
\r
3708 if(sym->info.array.ndim == requiredIndices)
\r
3710 ERR_Error(ERR_TOO_MANY_DIM_USED, YES,
\r
3711 sym->name, sym->info.array.ndim);
\r
3715 ERR_Error(ERR_NOT_A_CHAR_ARRAY, YES, sym->name,
\r
3716 sym->info.array.ndim, requiredIndices);
\r
3721 if(i < sym->info.array.ndim - 1 && sym->info.array.dimensions[i] > 1)
\r
3723 PC_AppendPushVal(sym->info.array.dimensions[i]);
\r
3724 PC_AppendCmd(PCD_MULTIPLY);
\r
3728 PC_AppendCmd(PCD_ADD);
\r
3731 TK_TokenMustBe(TK_RBRACKET, ERR_MISSING_RBRACKET);
\r
3734 // if there were unspecified indices, multiply the offset by their sizes [JB]
\r
3735 if(requiredIndices < sym->info.array.ndim)
\r
3738 for(i = 0; i < sym->info.array.ndim - requiredIndices; ++i)
\r
3740 mult *= sym->info.array.dimensions[sym->info.array.ndim - 2 - i];
\r
3744 PC_AppendPushVal(mult);
\r
3745 PC_AppendCmd(PCD_MULTIPLY);
\r
3750 static int *ProcessArrayLevel(int level, int *entry, int ndim,
\r
3751 int dims[MAX_ARRAY_DIMS], int muls[MAX_ARRAY_DIMS], char *name)
\r
3755 for(i = 0; i < dims[level-1]; ++i)
\r
3757 if(tk_Token == TK_COMMA)
\r
3759 entry += muls[level-1];
\r
3762 else if(tk_Token == TK_RBRACE)
\r
3767 return entry + muls[level-2] - i;
\r
3771 return entry + (muls[0]*dims[0]) - i;
\r
3778 if(tk_Token == TK_LBRACE)
\r
3780 ERR_Error(ERR_TOO_MANY_DIM_USED, YES, name, ndim);
\r
3781 SkipBraceBlock(0);
\r
3787 *entry++ = EvalConstExpression();
\r
3788 ArrayHasStrings |= pa_ConstExprIsString;
\r
3793 TK_TokenMustBe(TK_LBRACE, ERR_MISSING_LBRACE_ARR);
\r
3795 entry = ProcessArrayLevel(level+1, entry, ndim, dims, muls, name);
\r
3797 if(i < dims[level-1]-1)
\r
3799 if(tk_Token != TK_RBRACE)
\r
3801 TK_TokenMustBe(TK_COMMA, ERR_MISSING_COMMA);
\r
3807 if(tk_Token != TK_COMMA)
\r
3809 TK_TokenMustBe(TK_RBRACE, ERR_MISSING_RBRACE_ARR);
\r
3818 TK_TokenMustBe(TK_RBRACE, ERR_MISSING_RBRACE_ARR);
\r
3823 //==========================================================================
\r
3825 // InitializeArray
\r
3827 //==========================================================================
\r
3829 static void InitializeArray(symbolNode_t *sym, int dims[MAX_ARRAY_DIMS], int size)
\r
3831 static int *entries = NULL;
\r
3832 static int lastsize = -1;
\r
3834 if(lastsize < size)
\r
3836 entries = MS_Realloc(entries, sizeof(int)*size, ERR_OUT_OF_MEMORY);
\r
3839 memset(entries, 0, sizeof(int)*size);
\r
3841 TK_NextTokenMustBe(TK_LBRACE, ERR_MISSING_LBRACE_ARR);
\r
3843 ArrayHasStrings = NO;
\r
3844 ProcessArrayLevel(1, entries, sym->info.array.ndim, dims,
\r
3845 sym->info.array.dimensions, sym->name);
\r
3846 if(ImportMode != IMPORT_Importing)
\r
3848 PC_InitArray(sym->info.array.index, entries, ArrayHasStrings);
\r
3852 //==========================================================================
\r
3856 //==========================================================================
\r
3858 static symbolNode_t *DemandSymbol(char *name)
\r
3860 symbolNode_t *sym;
\r
3862 if((sym = SY_Find(name)) == NULL)
\r
3864 ERR_Exit(ERR_UNKNOWN_IDENTIFIER, YES, name);
\r
3869 //==========================================================================
\r
3871 // SpeculateSymbol
\r
3873 //==========================================================================
\r
3875 static symbolNode_t *SpeculateSymbol(char *name, boolean hasReturn)
\r
3877 symbolNode_t *sym;
\r
3879 sym = SY_Find(name);
\r
3882 char name[MAX_IDENTIFIER_LENGTH];
\r
3884 strcpy (name, tk_String);
\r
3886 if(tk_Token == TK_LPAREN)
\r
3887 { // Looks like a function call
\r
3888 sym = SpeculateFunction(name, hasReturn);
\r
3893 ERR_Exit(ERR_UNKNOWN_IDENTIFIER, YES, name);
\r
3899 //==========================================================================
\r
3901 // SpeculateFunction
\r
3903 // Add a temporary symbol for a function that is used before it is defined.
\r
3905 //==========================================================================
\r
3907 static symbolNode_t *SpeculateFunction(const char *name, boolean hasReturn)
\r
3909 symbolNode_t *sym;
\r
3911 MS_Message(MSG_DEBUG, "---- SpeculateFunction %s ----\n", name);
\r
3912 sym = SY_InsertGlobal(tk_String, SY_SCRIPTFUNC);
\r
3913 sym->info.scriptFunc.predefined = YES;
\r
3914 sym->info.scriptFunc.hasReturnValue = hasReturn;
\r
3915 sym->info.scriptFunc.sourceLine = tk_Line;
\r
3916 sym->info.scriptFunc.sourceName = tk_SourceName;
\r
3917 sym->info.scriptFunc.argCount = -1;
\r
3918 sym->info.scriptFunc.funcNumber = 0;
\r
3922 //==========================================================================
\r
3924 // UnspeculateFunction
\r
3926 // Fills in function calls that were made before this function was defined.
\r
3928 //==========================================================================
\r
3930 static void UnspeculateFunction(symbolNode_t *sym)
\r
3932 prefunc_t *fillin;
\r
3935 prev = &FillinFunctions;
\r
3936 fillin = FillinFunctions;
\r
3937 while(fillin != NULL)
\r
3939 prefunc_t *next = fillin->next;
\r
3940 if(fillin->sym == sym)
\r
3942 if(fillin->argcount != sym->info.scriptFunc.argCount)
\r
3944 ERR_ErrorAt(fillin->source, fillin->line);
\r
3945 ERR_Error(ERR_FUNC_ARGUMENT_COUNT, YES, sym->name,
\r
3946 sym->info.scriptFunc.argCount,
\r
3947 sym->info.scriptFunc.argCount == 1 ? "" : "s");
\r
3952 PC_WriteLong(sym->info.scriptFunc.funcNumber, fillin->address);
\r
3956 PC_WriteByte((U_BYTE)sym->info.scriptFunc.funcNumber, fillin->address);
\r
3958 if(FillinFunctionsLatest == &fillin->next)
\r
3960 FillinFunctionsLatest = prev;
\r
3967 prev = &fillin->next;
\r
3973 //==========================================================================
\r
3975 // AddScriptFuncRef
\r
3977 //==========================================================================
\r
3979 static void AddScriptFuncRef(symbolNode_t *sym, int address, int argcount)
\r
3981 prefunc_t *fillin = MS_Alloc(sizeof(*fillin), ERR_OUT_OF_MEMORY);
\r
3982 fillin->next = NULL;
\r
3983 fillin->sym = sym;
\r
3984 fillin->address = address;
\r
3985 fillin->argcount = argcount;
\r
3986 fillin->line = tk_Line;
\r
3987 fillin->source = tk_SourceName;
\r
3988 *FillinFunctionsLatest = fillin;
\r
3989 FillinFunctionsLatest = &fillin->next;
\r
3992 //==========================================================================
\r
3994 // Check for undefined functions
\r
3996 //==========================================================================
\r
3998 static void CheckForUndefinedFunctions(void)
\r
4000 prefunc_t *fillin = FillinFunctions;
\r
4002 while(fillin != NULL)
\r
4004 ERR_ErrorAt(fillin->source, fillin->line);
\r
4005 ERR_Error(ERR_UNDEFINED_FUNC, YES, fillin->sym->name);
\r
4006 fillin = fillin->next;
\r
4010 //==========================================================================
\r
4014 // If depth is 0, it scans for the first { and then starts going from there.
\r
4015 // At exit, the terminating } is left as the current token.
\r
4017 //==========================================================================
\r
4019 void SkipBraceBlock(int depth)
\r
4024 while(tk_Token != TK_LBRACE)
\r
4026 if(tk_Token == TK_EOF)
\r
4028 ERR_Exit(ERR_EOF, NO);
\r
4034 // Match it with a }
\r
4038 if(tk_Token == TK_EOF)
\r
4040 ERR_Exit(ERR_EOF, NO);
\r
4042 else if (tk_Token == TK_LBRACE)
\r
4046 else if (tk_Token == TK_RBRACE)
\r
4050 } while (depth > 0);
\r