7684ddcfd8
This change rewrites and simplifies the copyright headers at the top of all source files: * Remove "Emacs style mode select" line; this line was included in the headers for the originally released source files and appears to be to set the file type for old versions of Emacs. I'm not sure entirely why it was required but I don't think it is any more. * Remove "You should have received a copy of..." text from copyright header. This refers to the old 59 Temple Place address where the FSF headquarters used to be located and is no longer correct. Rather than change to the new address, just remove the paragraph as it is superfluous anyway. This fixes #311. * Remove ---- separator lines so that the file headers are barer and more simplified.
118 lines
2.6 KiB
C
118 lines
2.6 KiB
C
//
|
|
// Copyright(C) 2005-2014 Simon Howard
|
|
//
|
|
// 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.
|
|
//
|
|
//
|
|
// Parses Text substitution sections in dehacked files
|
|
//
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include "doomtype.h"
|
|
|
|
#include "z_zone.h"
|
|
|
|
#include "deh_defs.h"
|
|
#include "deh_io.h"
|
|
#include "deh_main.h"
|
|
|
|
// Given a string length, find the maximum length of a
|
|
// string that can replace it.
|
|
|
|
static int TXT_MaxStringLength(int len)
|
|
{
|
|
// Enough bytes for the string and the NUL terminator
|
|
|
|
len += 1;
|
|
|
|
// All strings in doom.exe are on 4-byte boundaries, so we may be able
|
|
// to support a slightly longer string.
|
|
// Extend up to the next 4-byte boundary
|
|
|
|
len += (4 - (len % 4)) % 4;
|
|
|
|
// Less one for the NUL terminator.
|
|
|
|
return len - 1;
|
|
}
|
|
|
|
static void *DEH_TextStart(deh_context_t *context, char *line)
|
|
{
|
|
char *from_text, *to_text;
|
|
int fromlen, tolen;
|
|
int i;
|
|
|
|
if (sscanf(line, "Text %i %i", &fromlen, &tolen) != 2)
|
|
{
|
|
DEH_Warning(context, "Parse error on section start");
|
|
return NULL;
|
|
}
|
|
|
|
// Only allow string replacements that are possible in Vanilla Doom.
|
|
// Chocolate Doom is unforgiving!
|
|
|
|
if (!deh_allow_long_strings && tolen > TXT_MaxStringLength(fromlen))
|
|
{
|
|
DEH_Error(context, "Replacement string is longer than the maximum "
|
|
"possible in doom.exe");
|
|
return NULL;
|
|
}
|
|
|
|
from_text = Z_Malloc(fromlen + 1, PU_STATIC, NULL);
|
|
to_text = Z_Malloc(tolen + 1, PU_STATIC, NULL);
|
|
|
|
// read in the "from" text
|
|
|
|
for (i=0; i<fromlen; ++i)
|
|
{
|
|
int c;
|
|
|
|
c = DEH_GetChar(context);
|
|
|
|
from_text[i] = c;
|
|
}
|
|
|
|
from_text[fromlen] = '\0';
|
|
|
|
// read in the "to" text
|
|
|
|
for (i=0; i<tolen; ++i)
|
|
{
|
|
int c;
|
|
|
|
c = DEH_GetChar(context);
|
|
|
|
to_text[i] = c;
|
|
}
|
|
to_text[tolen] = '\0';
|
|
|
|
DEH_AddStringReplacement(from_text, to_text);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void DEH_TextParseLine(deh_context_t *context, char *line, void *tag)
|
|
{
|
|
// not used
|
|
}
|
|
|
|
deh_section_t deh_section_text =
|
|
{
|
|
"Text",
|
|
NULL,
|
|
DEH_TextStart,
|
|
DEH_TextParseLine,
|
|
NULL,
|
|
NULL,
|
|
};
|
|
|