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- Added Martin Howe's code for replacing environment variables in partial IWAD

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search paths.


SVN r307 (trunk)
This commit is contained in:
Randy Heit 2006-08-22 22:34:35 +00:00
parent 1a7253e53c
commit d62e6c5332
2 changed files with 82 additions and 19 deletions
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2
docs/rh-log.txt
View file

@ -1,4 +1,6 @@
August 22, 2006
- Added Martin Howe's code for replacing environment variables in partial IWAD
search paths.
- Added support for casting color names in ACS print-type statements. What that
means is that instead of writing this:
print (s:"\cDSome text");

99
src/d_main.cpp
View file

@ -1455,24 +1455,92 @@ static int CheckIWAD (const char *doomwaddir, WadStuff *wads)
//==========================================================================
//
// CheckIWADinEnvDir
// ExpandEnvVars
//
// Checks for an IWAD in a directory specified in an environment variable.
// Expands environment variable references in a string. Intended primarily
// for use with IWAD search paths in config files.
//
//==========================================================================
static int CheckIWADinEnvDir (const char *envname, WadStuff *wads)
static FString ExpandEnvVars(const char *searchpathstring)
{
char dir[512];
const char *envdir = getenv (envname);
static const char envvarnamechars[] =
"01234567890"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"_"
"abcdefghijklmnopqrstuvwxyz";
if (envdir)
if (searchpathstring == NULL)
return FString ("");
const char *dollar = strchr (searchpathstring,'$');
if (dollar == NULL)
{
strcpy (dir, envdir);
return FString (searchpathstring);
}
const char *nextchars = searchpathstring;
FString out = FString (searchpathstring, dollar - searchpathstring);
while ( (dollar != NULL) && (*nextchars != 0) )
{
size_t length = strspn(dollar + 1, envvarnamechars);
if (length != 0)
{
FString varname = FString (dollar + 1, length);
if (stricmp (varname, "progdir") == 0)
{
out += progdir;
}
else
{
char *varvalue = getenv (varname);
if ( (varvalue != NULL) && (strlen(varvalue) != 0) )
{
out += varvalue;
}
}
}
else
{
out += '$';
}
nextchars = dollar + length + 1;
dollar = strchr (nextchars, '$');
if (dollar != NULL)
{
out += FString (nextchars, dollar - nextchars);
}
}
if (*nextchars != 0)
{
out += nextchars;
}
return out;
}
//==========================================================================
//
// CheckIWADinEnvDir
//
// Checks for an IWAD in a path that contains one or more environment
// variables.
//
//==========================================================================
static int CheckIWADinEnvDir (const char *str, WadStuff *wads)
{
FString expanded = ExpandEnvVars (str);
if (!expanded.IsEmpty())
{
char *dir = expanded.LockBuffer ();
FixPathSeperator (dir);
if (dir[strlen(dir) - 1] != '/')
strcat (dir, "/");
return CheckIWAD (dir, wads);
expanded.UnlockBuffer ();
if (expanded[expanded.Len() - 1] != '/')
{
expanded += '/';
}
return CheckIWAD (expanded, wads);
}
return false;
}
@ -1537,16 +1605,9 @@ static EIWADType IdentifyVersion (const char *zdoom_wad)
{
if (stricmp (key, "Path") == 0)
{
if (*value == '$')
if (strchr (value, '$') != NULL)
{
if (stricmp (value + 1, "progdir") == 0)
{
CheckIWAD (progdir, wads);
}
else
{
CheckIWADinEnvDir (value + 1, wads);
}
CheckIWADinEnvDir (value, wads);
}
#ifdef unix
else if (*value == '~' && (*(value + 1) == 0 || *(value + 1) == '/'))