FnQL/code/botlib/l_struct.cpp at main · themuffinator/FnQL · GitHub

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===========================================================================

This file is part of Quake III Arena source code.

Quake III Arena source code 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.

Quake III Arena source code 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 Quake III Arena source code; if not, write to the Free Software

Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

===========================================================================

/*****************************************************************************

* name: l_struct.c

* desc: structure reading / writing

* $Archive: /MissionPack/CODE/botlib/l_struct.c $

*****************************************************************************/

#ifdef BOTLIB

#include "../qcommon/q_shared.h"

#include "botlib.h" //for the include of be_interface.h

#include "l_script.h"

#include "l_precomp.h"

#include "l_struct.h"

#include "l_utils.h"

#include "be_interface.h"

#endif //BOTLIB

#ifdef BSPC

//include files for usage in the BSP Converter

#include "../bspc/qbsp.h"

#include "../bspc/l_log.h"

#include "../bspc/l_mem.h"

#include "l_precomp.h"

#include "l_struct.h"

#define qtrue true

#define qfalse false

#endif //BSPC

namespace {

inline void *FieldAddress(void *structure, size_t offset)

{

return static_cast<char *>(structure) + offset;

}

inline const void *FieldAddress(const void *structure, size_t offset)

{

return static_cast<const char *>(structure) + offset;

}

inline void *AdvanceField(void *p, size_t size)

{

return static_cast<char *>(p) + size;

}

inline const void *AdvanceField(const void *p, size_t size)

{

return static_cast<const char *>(p) + size;

}

template <typename T>

T &FieldValue(void *p)

{

return *static_cast<T *>(p);

}

template <typename T>

const T &FieldValue(const void *p)

{

return *static_cast<const T *>(p);

}

} // namespace

//===========================================================================

// Parameter: -

// Returns: -

// Changes Globals: -

//===========================================================================

static const fielddef_t *FindField(const fielddef_t *defs, const char *name)

{

int i;

for (i = 0; defs[i].name; i++)

{

if (!strcmp(defs[i].name, name)) return &defs[i];

} //end for

return nullptr;

} //end of the function FindField

//===========================================================================

// Parameter: -

// Returns: -

// Changes Globals: -

//===========================================================================

static qboolean ReadNumber(source_t *source, const fielddef_t *fd, void *p)

{

token_t token;

int negative = qfalse;

long int intval, intmin = 0, intmax = 0;

double floatval;

if (!PC_ExpectAnyToken(source, &token)) return qfalse;

//check for minus sign

if (token.type == TT_PUNCTUATION)

{

if (fd->type & FT_UNSIGNED)

{

SourceError(source, "expected unsigned value, found %s", token.string);

return qfalse;

} //end if

//if not a minus sign

if (strcmp(token.string, "-"))

{

SourceError(source, "unexpected punctuation %s", token.string);

return qfalse;

} //end if

negative = qtrue;

//read the number

if (!PC_ExpectAnyToken(source, &token)) return qfalse;

} //end if

//check if it is a number

if (token.type != TT_NUMBER)

{

SourceError(source, "expected number, found %s", token.string);

return qfalse;

} //end if

//check for a float value

if (token.subtype & TT_FLOAT)

{

if ((fd->type & FT_TYPE) != FT_FLOAT)

{

SourceError(source, "unexpected float");

return qfalse;

} //end if

floatval = token.floatvalue;

if (negative) floatval = -floatval;

if (fd->type & FT_BOUNDED)

{

if (floatval < fd->floatmin || floatval > fd->floatmax)

{

SourceError(source, "float out of range [%f, %f]", fd->floatmin, fd->floatmax);

return qfalse;

} //end if

FieldValue<float>(p) = static_cast<float>(floatval);

return qtrue;

} //end if

intval = token.intvalue;

if (negative) intval = -intval;

//check bounds

if ((fd->type & FT_TYPE) == FT_CHAR)

{

if (fd->type & FT_UNSIGNED) {intmin = 0; intmax = 255;}

else {intmin = -128; intmax = 127;}

} //end if

if ((fd->type & FT_TYPE) == FT_INT)

{

if (fd->type & FT_UNSIGNED) {intmin = 0; intmax = 65535;}

else {intmin = -32768; intmax = 32767;}

} //end else if

if ((fd->type & FT_TYPE) == FT_CHAR || (fd->type & FT_TYPE) == FT_INT)

{

if (fd->type & FT_BOUNDED)

{

intmin = Maximum(intmin, fd->floatmin);

intmax = Minimum(intmax, fd->floatmax);

} //end if

if (intval < intmin || intval > intmax)

{

SourceError(source, "value %ld out of range [%ld, %ld]", intval, intmin, intmax);

return qfalse;

} //end if

else if ((fd->type & FT_TYPE) == FT_FLOAT)

{

if (fd->type & FT_BOUNDED)

{

if (intval < fd->floatmin || intval > fd->floatmax)

{

SourceError(source, "value %ld out of range [%f, %f]", intval, fd->floatmin, fd->floatmax);

return qfalse;

} //end if

} //end else if

//store the value

if ((fd->type & FT_TYPE) == FT_CHAR)

{

if (fd->type & FT_UNSIGNED) FieldValue<unsigned char>(p) = static_cast<unsigned char>(intval);

else FieldValue<char>(p) = static_cast<char>(intval);

} //end if

else if ((fd->type & FT_TYPE) == FT_INT)

{

if (fd->type & FT_UNSIGNED) FieldValue<unsigned int>(p) = static_cast<unsigned int>(intval);

else FieldValue<int>(p) = static_cast<int>(intval);

} //end else

else if ((fd->type & FT_TYPE) == FT_FLOAT)

{

FieldValue<float>(p) = static_cast<float>(intval);

} //end else

return qtrue;

} //end of the function ReadNumber

//===========================================================================

// Parameter: -

// Returns: -

// Changes Globals: -

//===========================================================================

static qboolean ReadChar(source_t *source, const fielddef_t *fd, void *p)

{

token_t token;

if (!PC_ExpectAnyToken(source, &token)) return qfalse;

//take literals into account

if (token.type == TT_LITERAL)

{

StripSingleQuotes(token.string);

FieldValue<char>(p) = token.string[0];

} //end if

else

{

PC_UnreadLastToken(source);

if (!ReadNumber(source, fd, p)) return qfalse;

} //end if

return qtrue;

} //end of the function ReadChar

//===========================================================================

// Parameter: -

// Returns: -

// Changes Globals: -

//===========================================================================

static int ReadString(source_t *source, const fielddef_t *fd, void *p)

{

token_t token;

if (!PC_ExpectTokenType(source, TT_STRING, 0, &token)) return 0;

//remove the double quotes

StripDoubleQuotes(token.string);

//copy the string and make sure it is closed with a zero

Q_strncpyz(static_cast<char *>(p), token.string, MAX_STRINGFIELD);

return 1;

} //end of the function ReadString

//===========================================================================

// Parameter: -

// Returns: -

// Changes Globals: -

//===========================================================================

int ReadStructure(source_t *source, const structdef_t *def, void *structure)

{

token_t token;

const fielddef_t *fd;

void *p;

int num;

if (!PC_ExpectTokenString(source, "{")) return 0;

while(1)

{

if (!PC_ExpectAnyToken(source, &token)) return qfalse;

//if end of structure

if (!strcmp(token.string, "}")) break;

//find the field with the name

fd = FindField(def->fields, token.string);

if (!fd)

{

SourceError(source, "unknown structure field %s", token.string);

return qfalse;

} //end if

if (fd->type & FT_ARRAY)

{

num = fd->maxarray;

if (!PC_ExpectTokenString(source, "{")) return qfalse;

} //end if

else

{

num = 1;

} //end else

p = FieldAddress(structure, fd->offset);

while (num-- > 0)

{

if (fd->type & FT_ARRAY)

{

if (PC_CheckTokenString(source, "}")) break;

} //end if

switch(fd->type & FT_TYPE)

{

case FT_CHAR:

{

if (!ReadChar(source, fd, p)) return qfalse;

p = AdvanceField(p, sizeof(char));

break;

} //end case

case FT_INT:

{

if (!ReadNumber(source, fd, p)) return qfalse;

p = AdvanceField(p, sizeof(int));

break;

} //end case

case FT_FLOAT:

{

if (!ReadNumber(source, fd, p)) return qfalse;

p = AdvanceField(p, sizeof(float));

break;

} //end case

case FT_STRING:

{

if (!ReadString(source, fd, p)) return qfalse;

p = AdvanceField(p, MAX_STRINGFIELD);

break;

} //end case

case FT_STRUCT:

{

if (!fd->substruct)

{

SourceError(source, "BUG: no sub structure defined");

return qfalse;

} //end if

if (!ReadStructure(source, fd->substruct, p)) return qfalse;

p = AdvanceField(p, fd->substruct->size);

break;

} //end case

} //end switch

if (fd->type & FT_ARRAY)

{

if (!PC_ExpectAnyToken(source, &token)) return qfalse;

if (!strcmp(token.string, "}")) break;

if (strcmp(token.string, ","))

{

SourceError(source, "expected a comma, found %s", token.string);

return qfalse;

} //end if

} //end while

return qtrue;

} //end of the function ReadStructure

//===========================================================================

// Parameter: -

// Returns: -

// Changes Globals: -

//===========================================================================

int WriteIndent(FILE *fp, int indent)

{

while(indent-- > 0)

{

if (fprintf(fp, "\t") < 0) return qfalse;

} //end while

return qtrue;

} //end of the function WriteIndent

//===========================================================================

// Parameter: -

// Returns: -

// Changes Globals: -

//===========================================================================

int WriteFloat(FILE *fp, float value)

{

char buf[128];

int l;

Com_sprintf(buf, sizeof(buf), "%f", value);

l = strlen(buf);

//strip any trailing zeros

while(l-- > 1)

{

if (buf[l] != '0' && buf[l] != '.') break;

if (buf[l] == '.')

{

buf[l] = 0;

break;

} //end if

buf[l] = 0;

} //end while

//write the float to file

if (fprintf(fp, "%s", buf) < 0) return 0;

return 1;

} //end of the function WriteFloat

//===========================================================================

// Parameter: -

// Returns: -

// Changes Globals: -

//===========================================================================

static int WriteStructWithIndent(FILE *fp, const structdef_t *def, const void *structure, int indent)

{

int i, num;

const void *p;

const fielddef_t *fd;

if (!WriteIndent(fp, indent)) return qfalse;

if (fprintf(fp, "{\r\n") < 0) return qfalse;

indent++;

for (i = 0; def->fields[i].name; i++)

{

fd = &def->fields[i];

if (!WriteIndent(fp, indent)) return qfalse;

if (fprintf(fp, "%s\t", fd->name) < 0) return qfalse;

p = FieldAddress(structure, fd->offset);

if (fd->type & FT_ARRAY)

{

num = fd->maxarray;

if (fprintf(fp, "{") < 0) return qfalse;

} //end if

else

{

num = 1;

} //end else

while(num-- > 0)

{

switch(fd->type & FT_TYPE)

{

case FT_CHAR:

{

if (fprintf(fp, "%d", FieldValue<char>(p)) < 0) return qfalse;

p = AdvanceField(p, sizeof(char));

break;

} //end case

case FT_INT:

{

if (fprintf(fp, "%d", FieldValue<int>(p)) < 0) return qfalse;

p = AdvanceField(p, sizeof(int));

break;

} //end case

case FT_FLOAT:

{

if (!WriteFloat(fp, FieldValue<float>(p))) return qfalse;

p = AdvanceField(p, sizeof(float));

break;

} //end case

case FT_STRING:

{

if (fprintf(fp, "\"%s\"", static_cast<const char *>(p)) < 0) return qfalse;

p = AdvanceField(p, MAX_STRINGFIELD);

break;

} //end case

case FT_STRUCT:

{

if (!WriteStructWithIndent(fp, fd->substruct, p, indent)) return qfalse;

p = AdvanceField(p, fd->substruct->size);

break;

} //end case

} //end switch

if (fd->type & FT_ARRAY)

{

if (num > 0)

{

if (fprintf(fp, ",") < 0) return qfalse;

} //end if

else

{

if (fprintf(fp, "}") < 0) return qfalse;

} //end else

} //end if

} //end while

if (fprintf(fp, "\r\n") < 0) return qfalse;

} //end for

indent--;

if (!WriteIndent(fp, indent)) return qfalse;

if (fprintf(fp, "}\r\n") < 0) return qfalse;

return qtrue;

} //end of the function WriteStructWithIndent

//===========================================================================

// Parameter: -

// Returns: -

// Changes Globals: -

//===========================================================================

int WriteStructure(FILE *fp, const structdef_t *def, const void *structure)

{

return WriteStructWithIndent(fp, def, structure, 0);

} //end of the function WriteStructure

FnQL/code/botlib/l_struct.cpp at main · themuffinator/FnQL · GitHub

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