mirror of
https://github.com/ZDoom/zdbsp.git
synced 2024-11-24 21:01:11 +00:00
714 lines
15 KiB
C++
714 lines
15 KiB
C++
/*
|
|
Reads wad files, builds nodes, and saves new wad files.
|
|
Copyright (C) 1996 Raven Software
|
|
Copyright (C) 2002-2006 Randy Heit
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
*/
|
|
|
|
// HEADER FILES ------------------------------------------------------------
|
|
|
|
#include <string.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <stdarg.h>
|
|
#include <limits.h>
|
|
#include "sc_man.h"
|
|
|
|
#ifdef _MSC_VER
|
|
#pragma warning(disable:4996)
|
|
#endif
|
|
|
|
// MACROS ------------------------------------------------------------------
|
|
|
|
#define MAX_STRING_SIZE 4096
|
|
#define ASCII_COMMENT (';')
|
|
#define CPP_COMMENT ('/')
|
|
#define C_COMMENT ('*')
|
|
#define ASCII_QUOTE (34)
|
|
#define LUMP_SCRIPT 1
|
|
#define FILE_ZONE_SCRIPT 2
|
|
|
|
// TYPES -------------------------------------------------------------------
|
|
|
|
// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------
|
|
|
|
// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------
|
|
|
|
// PRIVATE FUNCTION PROTOTYPES ---------------------------------------------
|
|
|
|
static void SC_PrepareScript (void);
|
|
static void CheckOpen (void);
|
|
|
|
// EXTERNAL DATA DECLARATIONS ----------------------------------------------
|
|
|
|
// PUBLIC DATA DEFINITIONS -------------------------------------------------
|
|
|
|
char *sc_String;
|
|
int sc_StringLen;
|
|
int sc_Number;
|
|
double sc_Float;
|
|
int sc_Line;
|
|
bool sc_End;
|
|
bool sc_Crossed;
|
|
bool sc_StringQuoted;
|
|
bool sc_FileScripts = false;
|
|
//FILE *sc_Out;
|
|
|
|
// PRIVATE DATA DEFINITIONS ------------------------------------------------
|
|
|
|
static char *ScriptBuffer;
|
|
static char *ScriptPtr;
|
|
static char *ScriptEndPtr;
|
|
static char StringBuffer[MAX_STRING_SIZE];
|
|
static bool ScriptOpen = false;
|
|
static int ScriptSize;
|
|
static bool AlreadyGot = false;
|
|
static char *SavedScriptPtr;
|
|
static int SavedScriptLine;
|
|
static bool CMode;
|
|
|
|
// CODE --------------------------------------------------------------------
|
|
|
|
//==========================================================================
|
|
//
|
|
// SC_OpenFile
|
|
//
|
|
// Loads a script
|
|
//
|
|
//==========================================================================
|
|
|
|
void SC_OpenMem (const char *name, char *buffer, int len)
|
|
{
|
|
SC_Close ();
|
|
ScriptSize = len;
|
|
ScriptBuffer = buffer;
|
|
SC_PrepareScript ();
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// SC_PrepareScript
|
|
//
|
|
// Prepares a script for parsing.
|
|
//
|
|
//==========================================================================
|
|
|
|
static void SC_PrepareScript (void)
|
|
{
|
|
ScriptPtr = ScriptBuffer;
|
|
ScriptEndPtr = ScriptPtr + ScriptSize;
|
|
sc_Line = 1;
|
|
sc_End = false;
|
|
ScriptOpen = true;
|
|
sc_String = StringBuffer;
|
|
AlreadyGot = false;
|
|
SavedScriptPtr = NULL;
|
|
CMode = false;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// SC_Close
|
|
//
|
|
//==========================================================================
|
|
|
|
void SC_Close (void)
|
|
{
|
|
if (ScriptOpen)
|
|
{
|
|
ScriptBuffer = NULL;
|
|
ScriptOpen = false;
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// SC_SavePos
|
|
//
|
|
// Saves the current script location for restoration later
|
|
//
|
|
//==========================================================================
|
|
|
|
void SC_SavePos (void)
|
|
{
|
|
CheckOpen ();
|
|
if (sc_End)
|
|
{
|
|
SavedScriptPtr = NULL;
|
|
}
|
|
else
|
|
{
|
|
SavedScriptPtr = ScriptPtr;
|
|
SavedScriptLine = sc_Line;
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// SC_RestorePos
|
|
//
|
|
// Restores the previously saved script location
|
|
//
|
|
//==========================================================================
|
|
|
|
void SC_RestorePos (void)
|
|
{
|
|
if (SavedScriptPtr)
|
|
{
|
|
ScriptPtr = SavedScriptPtr;
|
|
sc_Line = SavedScriptLine;
|
|
sc_End = false;
|
|
AlreadyGot = false;
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// SC_SetCMode
|
|
//
|
|
// Enables/disables C mode. In C mode, more characters are considered to
|
|
// be whole words than in non-C mode.
|
|
//
|
|
//==========================================================================
|
|
|
|
void SC_SetCMode (bool cmode)
|
|
{
|
|
CMode = cmode;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// SC_GetString
|
|
//
|
|
//==========================================================================
|
|
|
|
bool SC_GetString (bool multiline)
|
|
{
|
|
char *text;
|
|
bool foundToken;
|
|
|
|
CheckOpen();
|
|
if (AlreadyGot)
|
|
{
|
|
AlreadyGot = false;
|
|
return true;
|
|
}
|
|
foundToken = false;
|
|
sc_Crossed = false;
|
|
sc_StringQuoted = false;
|
|
if (ScriptPtr >= ScriptEndPtr)
|
|
{
|
|
sc_End = true;
|
|
return false;
|
|
}
|
|
while (foundToken == false)
|
|
{
|
|
while (ScriptPtr < ScriptEndPtr && *ScriptPtr <= ' ')
|
|
{
|
|
if (*ScriptPtr++ == '\n')
|
|
{
|
|
sc_Line++;
|
|
sc_Crossed = true;
|
|
}
|
|
}
|
|
if (ScriptPtr >= ScriptEndPtr)
|
|
{
|
|
sc_End = true;
|
|
return false;
|
|
}
|
|
if ((CMode || *ScriptPtr != ASCII_COMMENT) &&
|
|
!(ScriptPtr[0] == CPP_COMMENT && ScriptPtr < ScriptEndPtr - 1 &&
|
|
(ScriptPtr[1] == CPP_COMMENT || ScriptPtr[1] == C_COMMENT)))
|
|
{ // Found a token
|
|
foundToken = true;
|
|
}
|
|
else
|
|
{ // Skip comment
|
|
if (ScriptPtr[0] == CPP_COMMENT && ScriptPtr[1] == C_COMMENT)
|
|
{ // C comment
|
|
while (ScriptPtr[0] != C_COMMENT || ScriptPtr[1] != CPP_COMMENT)
|
|
{
|
|
if (ScriptPtr[0] == '\n')
|
|
{
|
|
sc_Line++;
|
|
sc_Crossed = true;
|
|
}
|
|
// fputc(ScriptPtr[0], sc_Out);
|
|
ScriptPtr++;
|
|
if (ScriptPtr >= ScriptEndPtr - 1)
|
|
{
|
|
sc_End = true;
|
|
return false;
|
|
}
|
|
// fputs("*/", sc_Out);
|
|
}
|
|
ScriptPtr += 2;
|
|
}
|
|
else
|
|
{ // C++ comment
|
|
while (*ScriptPtr++ != '\n')
|
|
{
|
|
// fputc(ScriptPtr[-1], sc_Out);
|
|
if (ScriptPtr >= ScriptEndPtr)
|
|
{
|
|
sc_End = true;
|
|
return false;
|
|
}
|
|
}
|
|
sc_Line++;
|
|
sc_Crossed = true;
|
|
// fputc('\n', sc_Out);
|
|
}
|
|
}
|
|
}
|
|
text = sc_String;
|
|
if (*ScriptPtr == ASCII_QUOTE)
|
|
{ // Quoted string - return string including the quotes
|
|
*text++ = *ScriptPtr++;
|
|
sc_StringQuoted = true;
|
|
while (*ScriptPtr != ASCII_QUOTE)
|
|
{
|
|
if (multiline && *ScriptPtr == '\n')
|
|
{
|
|
*text++ = '"';
|
|
*text++ = ',';
|
|
*text++ = '\n';
|
|
*text++ = '\t';
|
|
*text++ = '\t';
|
|
*text++ = '"';
|
|
ScriptPtr++;
|
|
continue;
|
|
}
|
|
else if (*ScriptPtr < ' ')
|
|
{
|
|
ScriptPtr++;
|
|
}
|
|
else
|
|
{
|
|
*text++ = *ScriptPtr++;
|
|
}
|
|
if (ScriptPtr == ScriptEndPtr
|
|
|| text == &sc_String[MAX_STRING_SIZE-1])
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
*text++ = '"';
|
|
ScriptPtr++;
|
|
}
|
|
else
|
|
{ // Normal string
|
|
static const char *stopchars;
|
|
|
|
if (CMode)
|
|
{
|
|
stopchars = "`~!@#$%^&*(){}[]/=\?+|;:<>,";
|
|
|
|
// '-' can be its own token, or it can be part of a negative number
|
|
if (*ScriptPtr == '-')
|
|
{
|
|
*text++ = '-';
|
|
ScriptPtr++;
|
|
if (ScriptPtr < ScriptEndPtr || (*ScriptPtr >= '0' && *ScriptPtr <= '9'))
|
|
{
|
|
goto grabtoken;
|
|
}
|
|
goto gottoken;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
stopchars = "{}|=";
|
|
}
|
|
if (strchr (stopchars, *ScriptPtr))
|
|
{
|
|
*text++ = *ScriptPtr++;
|
|
}
|
|
else
|
|
{
|
|
grabtoken:
|
|
while ((*ScriptPtr > ' ') && (strchr (stopchars, *ScriptPtr) == NULL)
|
|
&& (CMode || *ScriptPtr != ASCII_COMMENT)
|
|
&& !(ScriptPtr[0] == CPP_COMMENT && (ScriptPtr < ScriptEndPtr - 1) &&
|
|
(ScriptPtr[1] == CPP_COMMENT || ScriptPtr[1] == C_COMMENT)))
|
|
{
|
|
*text++ = *ScriptPtr++;
|
|
if (ScriptPtr == ScriptEndPtr
|
|
|| text == &sc_String[MAX_STRING_SIZE-1])
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
gottoken:
|
|
*text = 0;
|
|
sc_StringLen = int(text - sc_String);
|
|
return true;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// SC_MustGetString
|
|
//
|
|
//==========================================================================
|
|
|
|
void SC_MustGetString (void)
|
|
{
|
|
if (SC_GetString () == false)
|
|
{
|
|
SC_ScriptError ("Missing string (unexpected end of file).");
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// SC_MustGetStringName
|
|
//
|
|
//==========================================================================
|
|
|
|
void SC_MustGetStringName (const char *name)
|
|
{
|
|
SC_MustGetString ();
|
|
if (SC_Compare (name) == false)
|
|
{
|
|
SC_ScriptError ("Expected '%s', got '%s'.", name, sc_String);
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// SC_CheckString
|
|
//
|
|
// Checks if the next token matches the specified string. Returns true if
|
|
// it does. If it doesn't, it ungets it and returns false.
|
|
//==========================================================================
|
|
|
|
bool SC_CheckString (const char *name)
|
|
{
|
|
if (SC_GetString ())
|
|
{
|
|
if (SC_Compare (name))
|
|
{
|
|
return true;
|
|
}
|
|
SC_UnGet ();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// SC_GetNumber
|
|
//
|
|
//==========================================================================
|
|
|
|
bool SC_GetNumber (void)
|
|
{
|
|
char *stopper;
|
|
|
|
CheckOpen ();
|
|
if (SC_GetString())
|
|
{
|
|
if (strcmp (sc_String, "MAXINT") == 0)
|
|
{
|
|
sc_Number = INT_MAX;
|
|
}
|
|
else
|
|
{
|
|
sc_Number = strtol (sc_String, &stopper, 0);
|
|
if (*stopper != 0)
|
|
{
|
|
SC_ScriptError ("SC_GetNumber: Bad numeric constant \"%s\".", sc_String);
|
|
}
|
|
}
|
|
sc_Float = sc_Number;
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// SC_MustGetNumber
|
|
//
|
|
//==========================================================================
|
|
|
|
void SC_MustGetNumber (void)
|
|
{
|
|
if (SC_GetNumber() == false)
|
|
{
|
|
SC_ScriptError ("Missing integer (unexpected end of file).");
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// SC_CheckNumber
|
|
// similar to SC_GetNumber but ungets the token if it isn't a number
|
|
// and does not print an error
|
|
//
|
|
//==========================================================================
|
|
|
|
bool SC_CheckNumber (void)
|
|
{
|
|
char *stopper;
|
|
|
|
//CheckOpen ();
|
|
if (SC_GetString())
|
|
{
|
|
if (strcmp (sc_String, "MAXINT") == 0)
|
|
{
|
|
sc_Number = INT_MAX;
|
|
}
|
|
else
|
|
{
|
|
sc_Number = strtol (sc_String, &stopper, 0);
|
|
if (*stopper != 0)
|
|
{
|
|
SC_UnGet();
|
|
return false;
|
|
}
|
|
}
|
|
sc_Float = sc_Number;
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// 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);
|
|
sc_Number = (int)sc_Float;
|
|
if (*stopper != 0)
|
|
{
|
|
SC_UnGet();
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
return false;
|
|
}
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
// SC_GetFloat
|
|
//
|
|
//==========================================================================
|
|
|
|
bool SC_GetFloat (void)
|
|
{
|
|
char *stopper;
|
|
|
|
CheckOpen ();
|
|
if (SC_GetString())
|
|
{
|
|
sc_Float = strtod (sc_String, &stopper);
|
|
if (*stopper != 0)
|
|
{
|
|
SC_ScriptError("SC_GetFloat: Bad numeric constant \"%s\".\n",sc_String);
|
|
}
|
|
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)
|
|
{
|
|
#ifdef _MSC_VER
|
|
return (_stricmp (text, sc_String) == 0);
|
|
#else
|
|
return (strcasecmp (text, sc_String) == 0);
|
|
#endif
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// SC_ScriptError
|
|
//
|
|
//==========================================================================
|
|
|
|
void SC_ScriptError (const char *message, ...)
|
|
{
|
|
char composed[2048];
|
|
if (message == NULL)
|
|
{
|
|
message = "Bad syntax.";
|
|
}
|
|
|
|
va_list arglist;
|
|
va_start (arglist, message);
|
|
vsprintf (composed, message, arglist);
|
|
va_end (arglist);
|
|
|
|
printf ("Script error, line %d:\n%s\n", sc_Line, composed);
|
|
exit(1);
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// CheckOpen
|
|
//
|
|
//==========================================================================
|
|
|
|
static void CheckOpen(void)
|
|
{
|
|
if (ScriptOpen == false)
|
|
{
|
|
printf ("SC_ call before SC_Open().\n");
|
|
exit(1);
|
|
}
|
|
}
|