2006-02-24 04:48:15 +00:00
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//**************************************************************************
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//**
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//** sc_man.c : Heretic 2 : Raven Software, Corp.
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//**
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//** $RCSfile: sc_man.c,v $
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//** $Revision: 1.3 $
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//** $Date: 96/01/06 03:23:43 $
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//** $Author: bgokey $
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//**
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//**************************************************************************
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// HEADER FILES ------------------------------------------------------------
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#include <string.h>
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#include <stdlib.h>
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#include "doomtype.h"
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#include "i_system.h"
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#include "sc_man.h"
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#include "w_wad.h"
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#include "cmdlib.h"
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#include "m_misc.h"
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2006-06-20 20:30:39 +00:00
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#include "templates.h"
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2006-02-24 04:48:15 +00:00
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// MACROS ------------------------------------------------------------------
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#define MAX_STRING_SIZE 4096
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#define ASCII_COMMENT (';')
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#define CPP_COMMENT ('/')
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#define C_COMMENT ('*')
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#define ASCII_QUOTE ('"')
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#define LUMP_SCRIPT 1
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#define FILE_ZONE_SCRIPT 2
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#define NORMAL_STOPCHARS "{}|="
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#define CMODE_STOPCHARS "`~!@#$%^&*(){}[]/=\?+|;:<>,."
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#define CMODE_STOPCHARS_NODECIMAL "`~!@#$%^&*(){}[]/=\?+|;:<>,"
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// TYPES -------------------------------------------------------------------
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// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------
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// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------
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// PRIVATE FUNCTION PROTOTYPES ---------------------------------------------
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static void SC_PrepareScript (void);
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static void CheckOpen (void);
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// EXTERNAL DATA DECLARATIONS ----------------------------------------------
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// PUBLIC DATA DEFINITIONS -------------------------------------------------
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char *sc_String;
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int sc_StringLen;
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int sc_Number;
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float sc_Float;
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int sc_Line;
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BOOL sc_End;
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BOOL sc_Crossed;
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BOOL sc_FileScripts = false;
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char *sc_ScriptsDir = "";
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// PRIVATE DATA DEFINITIONS ------------------------------------------------
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2006-05-03 22:45:01 +00:00
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static FString ScriptName;
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2006-02-24 04:48:15 +00:00
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static char *ScriptBuffer;
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static char *ScriptPtr;
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static char *ScriptEndPtr;
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static char StringBuffer[MAX_STRING_SIZE];
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static bool ScriptOpen = false;
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static int ScriptSize;
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static bool AlreadyGot = false;
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static bool FreeScript = false;
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static char *SavedScriptPtr;
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static int SavedScriptLine;
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static bool CMode;
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2006-06-21 23:22:17 +00:00
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static bool Escape = true;
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static bool AtTermed;
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2006-02-24 04:48:15 +00:00
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// CODE --------------------------------------------------------------------
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//==========================================================================
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//
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// SC_Open
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//
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//==========================================================================
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void SC_Open (const char *name)
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{
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2006-04-30 21:49:18 +00:00
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int lump = Wads.CheckNumForFullName(name);
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if (lump==-1) lump = Wads.GetNumForName(name);
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SC_OpenLumpNum(lump, name);
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2006-02-24 04:48:15 +00:00
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}
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//==========================================================================
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//
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// SC_OpenFile
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//
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// Loads a script (from a file). Uses the new/delete memory allocator for
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// memory allocation and de-allocation.
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//
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//==========================================================================
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void SC_OpenFile (const char *name)
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{
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2006-05-26 04:38:22 +00:00
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byte *filebuf;
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2006-02-24 04:48:15 +00:00
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SC_Close ();
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2006-05-26 04:38:22 +00:00
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ScriptSize = M_ReadFile (name, &filebuf);
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ScriptBuffer = (char *)filebuf;
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2006-04-30 21:49:18 +00:00
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ScriptName = name; // This is used for error messages so the full file name is preferable
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2006-02-24 04:48:15 +00:00
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FreeScript = true;
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SC_PrepareScript ();
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}
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//==========================================================================
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//
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// SC_OpenMem
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//
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// Prepares a script that is already in memory for parsing. The caller is
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// responsible for freeing it, if needed.
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//
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//==========================================================================
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void SC_OpenMem (const char *name, char *buffer, int size)
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{
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SC_Close ();
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ScriptSize = size;
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ScriptBuffer = buffer;
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2006-04-30 21:49:18 +00:00
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ScriptName = name;
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2006-02-24 04:48:15 +00:00
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FreeScript = false;
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SC_PrepareScript ();
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}
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//==========================================================================
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//
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// SC_OpenLumpNum
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//
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// Loads a script (from the WAD files).
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//
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//==========================================================================
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void SC_OpenLumpNum (int lump, const char *name)
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{
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SC_Close ();
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ScriptSize = Wads.LumpLength (lump);
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ScriptBuffer = new char[ScriptSize];
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Wads.ReadLump (lump, ScriptBuffer);
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2006-04-30 21:49:18 +00:00
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ScriptName = name;
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2006-02-24 04:48:15 +00:00
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FreeScript = true;
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SC_PrepareScript ();
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}
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//==========================================================================
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//
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// SC_PrepareScript
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//
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// Prepares a script for parsing.
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//
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//==========================================================================
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static void SC_PrepareScript (void)
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{
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ScriptPtr = ScriptBuffer;
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ScriptEndPtr = ScriptPtr + ScriptSize;
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sc_Line = 1;
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sc_End = false;
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ScriptOpen = true;
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sc_String = StringBuffer;
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AlreadyGot = false;
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SavedScriptPtr = NULL;
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CMode = false;
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2006-04-30 21:49:18 +00:00
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Escape = true;
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2006-02-24 04:48:15 +00:00
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}
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//==========================================================================
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//
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// SC_Close
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//
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//==========================================================================
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void SC_Close (void)
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{
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if (ScriptOpen)
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{
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if (ScriptBuffer)
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{
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if (FreeScript)
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{
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delete[] ScriptBuffer;
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}
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}
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ScriptBuffer = NULL;
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ScriptOpen = false;
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}
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}
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//==========================================================================
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//
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// SC_SavePos
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//
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// Saves the current script location for restoration later
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//
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//==========================================================================
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void SC_SavePos (void)
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{
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CheckOpen ();
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if (sc_End)
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{
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SavedScriptPtr = NULL;
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}
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else
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{
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SavedScriptPtr = ScriptPtr;
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SavedScriptLine = sc_Line;
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}
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}
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//==========================================================================
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//
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// SC_RestorePos
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//
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// Restores the previously saved script location
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//
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//==========================================================================
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void SC_RestorePos (void)
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{
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if (SavedScriptPtr)
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{
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ScriptPtr = SavedScriptPtr;
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sc_Line = SavedScriptLine;
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sc_End = false;
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AlreadyGot = false;
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}
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}
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//==========================================================================
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//
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// SC_SetCMode
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//
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// Enables/disables C mode. In C mode, more characters are considered to
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// be whole words than in non-C mode.
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//
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//==========================================================================
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void SC_SetCMode (bool cmode)
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{
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CMode = cmode;
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}
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2006-06-21 23:22:17 +00:00
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//==========================================================================
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//
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// SC_SetEscape
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//
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// Turns the escape sequence \" in strings on or off. If it's off, that
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// means you can't include quotation marks inside strings.
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//
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//==========================================================================
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2006-04-11 08:36:23 +00:00
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void SC_SetEscape (bool esc)
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{
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Escape = esc;
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}
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2006-02-24 04:48:15 +00:00
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//==========================================================================
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//
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// SC_GetString
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//
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//==========================================================================
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2006-04-11 08:36:23 +00:00
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BOOL SC_GetString ()
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2006-02-24 04:48:15 +00:00
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{
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2006-06-20 20:30:39 +00:00
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char *marker, *tok;
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2006-02-24 04:48:15 +00:00
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CheckOpen();
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if (AlreadyGot)
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{
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AlreadyGot = false;
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return true;
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}
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sc_Crossed = false;
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if (ScriptPtr >= ScriptEndPtr)
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{
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sc_End = true;
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return false;
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}
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2006-06-20 20:30:39 +00:00
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// In case the generated scanner does not use marker, avoid compiler warnings.
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marker;
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#include "sc_man_scanner.h"
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2006-02-24 04:48:15 +00:00
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}
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//==========================================================================
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//
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// SC_MustGetString
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//
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//==========================================================================
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void SC_MustGetString (void)
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{
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if (SC_GetString () == false)
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{
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SC_ScriptError ("Missing string (unexpected end of file).");
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}
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}
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//==========================================================================
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//
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// SC_MustGetStringName
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//
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//==========================================================================
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void SC_MustGetStringName (const char *name)
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{
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SC_MustGetString ();
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if (SC_Compare (name) == false)
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{
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SC_ScriptError ("Expected '%s', got '%s'.", name, sc_String);
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}
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}
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//==========================================================================
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//
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// SC_CheckString
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//
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// Checks if the next token matches the specified string. Returns true if
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// it does. If it doesn't, it ungets it and returns false.
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//==========================================================================
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bool SC_CheckString (const char *name)
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{
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if (SC_GetString ())
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{
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if (SC_Compare (name))
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{
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return true;
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}
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SC_UnGet ();
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}
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return false;
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}
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//==========================================================================
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//
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// SC_GetNumber
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//
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//==========================================================================
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BOOL SC_GetNumber (void)
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{
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char *stopper;
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CheckOpen ();
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if (SC_GetString())
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{
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if (strcmp (sc_String, "MAXINT") == 0)
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{
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sc_Number = INT_MAX;
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}
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else
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{
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sc_Number = strtol (sc_String, &stopper, 0);
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if (*stopper != 0)
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{
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SC_ScriptError ("SC_GetNumber: Bad numeric constant \"%s\".", sc_String);
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}
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}
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sc_Float = (float)sc_Number;
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return true;
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}
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else
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{
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return false;
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}
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}
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//==========================================================================
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//
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// SC_MustGetNumber
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//
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//==========================================================================
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void SC_MustGetNumber (void)
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{
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if (SC_GetNumber() == false)
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{
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SC_ScriptError ("Missing integer (unexpected end of file).");
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}
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}
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//==========================================================================
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//
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// SC_CheckNumber
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// similar to SC_GetNumber but ungets the token if it isn't a number
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// and does not print an error
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//
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//==========================================================================
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BOOL SC_CheckNumber (void)
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{
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char *stopper;
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//CheckOpen ();
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if (SC_GetString())
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{
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if (strcmp (sc_String, "MAXINT") == 0)
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{
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sc_Number = INT_MAX;
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}
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else
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{
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sc_Number = strtol (sc_String, &stopper, 0);
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if (*stopper != 0)
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{
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SC_UnGet();
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return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
sc_Float = (float)sc_Number;
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2006-04-15 15:00:29 +00:00
|
|
|
//==========================================================================
|
|
|
|
//
|
|
|
|
// SC_CheckFloat
|
|
|
|
// [GRB] Same as SC_CheckNumber, only for floats
|
|
|
|
//
|
|
|
|
//==========================================================================
|
|
|
|
|
|
|
|
BOOL SC_CheckFloat (void)
|
|
|
|
{
|
|
|
|
char *stopper;
|
|
|
|
|
|
|
|
//CheckOpen ();
|
|
|
|
if (SC_GetString())
|
|
|
|
{
|
|
|
|
sc_Float = strtod (sc_String, &stopper);
|
|
|
|
if (*stopper != 0)
|
|
|
|
{
|
|
|
|
SC_UnGet();
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2006-02-24 04:48:15 +00:00
|
|
|
//==========================================================================
|
|
|
|
//
|
|
|
|
// SC_GetFloat
|
|
|
|
//
|
|
|
|
//==========================================================================
|
|
|
|
|
|
|
|
BOOL SC_GetFloat (void)
|
|
|
|
{
|
|
|
|
char *stopper;
|
|
|
|
|
|
|
|
CheckOpen ();
|
|
|
|
if (SC_GetString())
|
|
|
|
{
|
|
|
|
sc_Float = (float)strtod (sc_String, &stopper);
|
|
|
|
if (*stopper != 0)
|
|
|
|
{
|
|
|
|
I_Error ("SC_GetFloat: Bad numeric constant \"%s\".\n"
|
2006-04-30 21:49:18 +00:00
|
|
|
"Script %s, Line %d\n", sc_String, ScriptName.GetChars(), sc_Line);
|
2006-02-24 04:48:15 +00:00
|
|
|
}
|
|
|
|
sc_Number = (int)sc_Float;
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
//==========================================================================
|
|
|
|
//
|
|
|
|
// SC_MustGetFloat
|
|
|
|
//
|
|
|
|
//==========================================================================
|
|
|
|
|
|
|
|
void SC_MustGetFloat (void)
|
|
|
|
{
|
|
|
|
if (SC_GetFloat() == false)
|
|
|
|
{
|
|
|
|
SC_ScriptError ("Missing floating-point number (unexpected end of file).");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
//==========================================================================
|
|
|
|
//
|
|
|
|
// SC_UnGet
|
|
|
|
//
|
|
|
|
// Assumes there is a valid string in sc_String.
|
|
|
|
//
|
|
|
|
//==========================================================================
|
|
|
|
|
|
|
|
void SC_UnGet (void)
|
|
|
|
{
|
|
|
|
AlreadyGot = true;
|
|
|
|
}
|
|
|
|
|
|
|
|
//==========================================================================
|
|
|
|
//
|
|
|
|
// SC_Check
|
|
|
|
//
|
|
|
|
// Returns true if another token is on the current line.
|
|
|
|
//
|
|
|
|
//==========================================================================
|
|
|
|
|
|
|
|
/*
|
|
|
|
BOOL SC_Check(void)
|
|
|
|
{
|
|
|
|
char *text;
|
|
|
|
|
|
|
|
CheckOpen();
|
|
|
|
text = ScriptPtr;
|
|
|
|
if(text >= ScriptEndPtr)
|
|
|
|
{
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
while(*text <= 32)
|
|
|
|
{
|
|
|
|
if(*text == '\n')
|
|
|
|
{
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
text++;
|
|
|
|
if(text == ScriptEndPtr)
|
|
|
|
{
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if(*text == ASCII_COMMENT)
|
|
|
|
{
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
*/
|
|
|
|
|
|
|
|
//==========================================================================
|
|
|
|
//
|
|
|
|
// SC_MatchString
|
|
|
|
//
|
|
|
|
// Returns the index of the first match to sc_String from the passed
|
|
|
|
// array of strings, or -1 if not found.
|
|
|
|
//
|
|
|
|
//==========================================================================
|
|
|
|
|
|
|
|
int SC_MatchString (const char **strings)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
for (i = 0; *strings != NULL; i++)
|
|
|
|
{
|
|
|
|
if (SC_Compare (*strings++))
|
|
|
|
{
|
|
|
|
return i;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
//==========================================================================
|
|
|
|
//
|
|
|
|
// SC_MustMatchString
|
|
|
|
//
|
|
|
|
//==========================================================================
|
|
|
|
|
|
|
|
int SC_MustMatchString (const char **strings)
|
|
|
|
{
|
|
|
|
int i;
|
|
|
|
|
|
|
|
i = SC_MatchString (strings);
|
|
|
|
if (i == -1)
|
|
|
|
{
|
|
|
|
SC_ScriptError (NULL);
|
|
|
|
}
|
|
|
|
return i;
|
|
|
|
}
|
|
|
|
|
|
|
|
//==========================================================================
|
|
|
|
//
|
|
|
|
// SC_Compare
|
|
|
|
//
|
|
|
|
//==========================================================================
|
|
|
|
|
|
|
|
BOOL SC_Compare (const char *text)
|
|
|
|
{
|
|
|
|
return (stricmp (text, sc_String) == 0);
|
|
|
|
}
|
|
|
|
|
|
|
|
//==========================================================================
|
|
|
|
//
|
|
|
|
// SC_ScriptError
|
|
|
|
//
|
|
|
|
//==========================================================================
|
|
|
|
|
|
|
|
void STACK_ARGS SC_ScriptError (const char *message, ...)
|
|
|
|
{
|
2006-05-03 22:45:01 +00:00
|
|
|
FString composed;
|
2006-02-24 04:48:15 +00:00
|
|
|
|
|
|
|
if (message == NULL)
|
|
|
|
{
|
|
|
|
composed = "Bad syntax.";
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
va_list arglist;
|
|
|
|
va_start (arglist, message);
|
|
|
|
composed.VFormat (message, arglist);
|
|
|
|
va_end (arglist);
|
|
|
|
}
|
|
|
|
|
2006-04-30 21:49:18 +00:00
|
|
|
I_Error ("Script error, \"%s\" line %d:\n%s\n", ScriptName.GetChars(),
|
2006-02-24 04:48:15 +00:00
|
|
|
sc_Line, composed.GetChars());
|
|
|
|
}
|
|
|
|
|
|
|
|
//==========================================================================
|
|
|
|
//
|
|
|
|
// CheckOpen
|
|
|
|
//
|
|
|
|
//==========================================================================
|
|
|
|
|
|
|
|
static void CheckOpen(void)
|
|
|
|
{
|
|
|
|
if (ScriptOpen == false)
|
|
|
|
{
|
|
|
|
I_FatalError ("SC_ call before SC_Open().");
|
|
|
|
}
|
|
|
|
}
|
2006-04-30 21:49:18 +00:00
|
|
|
|
|
|
|
|
|
|
|
//==========================================================================
|
|
|
|
//
|
|
|
|
// Script state saving
|
|
|
|
// This allows recursive script execution
|
|
|
|
// This does not save the last token!
|
|
|
|
//
|
|
|
|
//==========================================================================
|
|
|
|
|
|
|
|
struct SavedScript
|
|
|
|
{
|
|
|
|
int sc_Line;
|
|
|
|
BOOL sc_End;
|
|
|
|
BOOL sc_Crossed;
|
|
|
|
BOOL sc_FileScripts;
|
|
|
|
|
2006-05-03 22:45:01 +00:00
|
|
|
FString *ScriptName;
|
2006-04-30 21:49:18 +00:00
|
|
|
char *ScriptBuffer;
|
|
|
|
char *ScriptPtr;
|
|
|
|
char *ScriptEndPtr;
|
|
|
|
bool ScriptOpen;
|
|
|
|
int ScriptSize;
|
|
|
|
bool FreeScript;
|
|
|
|
char *SavedScriptPtr;
|
|
|
|
int SavedScriptLine;
|
|
|
|
bool CMode;
|
|
|
|
bool Escape;
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
static TArray<SavedScript> SavedScripts;
|
|
|
|
|
|
|
|
void SC_SaveScriptState()
|
|
|
|
{
|
|
|
|
SavedScript ss;
|
|
|
|
|
|
|
|
ss.sc_Line = sc_Line;
|
|
|
|
ss.sc_End = sc_End;
|
|
|
|
ss.sc_Crossed = sc_Crossed;
|
|
|
|
ss.sc_FileScripts = sc_FileScripts;
|
2006-05-03 22:45:01 +00:00
|
|
|
ss.ScriptName = ::new FString(ScriptName);
|
2006-04-30 21:49:18 +00:00
|
|
|
ss.ScriptBuffer = ScriptBuffer;
|
|
|
|
ss.ScriptPtr = ScriptPtr;
|
|
|
|
ss.ScriptEndPtr = ScriptEndPtr;
|
|
|
|
ss.ScriptOpen = ScriptOpen;
|
|
|
|
ss.ScriptSize = ScriptSize;
|
|
|
|
ss.FreeScript = FreeScript;
|
|
|
|
ss.SavedScriptPtr = SavedScriptPtr;
|
|
|
|
ss.SavedScriptLine = SavedScriptLine;
|
|
|
|
ss.CMode = CMode;
|
|
|
|
ss.Escape = Escape;
|
|
|
|
SavedScripts.Push(ss);
|
|
|
|
ScriptOpen = false;
|
|
|
|
}
|
|
|
|
|
|
|
|
void SC_RestoreScriptState()
|
|
|
|
{
|
|
|
|
if (SavedScripts.Size()>0)
|
|
|
|
{
|
|
|
|
SavedScript ss;
|
|
|
|
|
|
|
|
SavedScripts.Pop(ss);
|
|
|
|
sc_Line = ss.sc_Line;
|
|
|
|
sc_End = ss.sc_End;
|
|
|
|
sc_Crossed = ss.sc_Crossed;
|
|
|
|
sc_FileScripts = ss.sc_FileScripts;
|
|
|
|
ScriptName = *ss.ScriptName;
|
2006-05-03 14:54:48 +00:00
|
|
|
::delete ss.ScriptName;
|
2006-04-30 21:49:18 +00:00
|
|
|
ScriptBuffer = ss.ScriptBuffer;
|
|
|
|
ScriptPtr = ss.ScriptPtr;
|
|
|
|
ScriptEndPtr = ss.ScriptEndPtr;
|
|
|
|
ScriptOpen = ss.ScriptOpen;
|
|
|
|
ScriptSize = ss.ScriptSize;
|
|
|
|
FreeScript = ss.FreeScript;
|
|
|
|
SavedScriptPtr = ss.SavedScriptPtr;
|
|
|
|
SavedScriptLine = ss.SavedScriptLine;
|
|
|
|
CMode = ss.CMode;
|
|
|
|
Escape = ss.Escape;
|
|
|
|
SavedScripts.ShrinkToFit();
|
|
|
|
AlreadyGot = false;
|
|
|
|
}
|
|
|
|
}
|