qzdoom/src/c_dispatch.cpp
Christoph Oelckers cd180d29c7 - block direct use of 'new' for DObjects.
This is to ensure that the Class pointer can be set right on creation. ZDoom had always depended on handling this lazily which poses some problems for the VM.
So now there is a variadic Create<classtype> function taking care of that, but to ensure that it gets used, direct access to the new operator has been blocked.

This also neccessitated making DArgs a regular object because they get created before the type system is up. Since the few uses of DArgs are easily controllable this wasn't a big issue.

- did a bit of optimization on the bots' decision making whether to pick up a health item or not.
2017-04-14 13:31:58 +02:00

1639 lines
35 KiB
C++

/*
** c_dispatch.cpp
** Functions for executing console commands and aliases
**
**---------------------------------------------------------------------------
** Copyright 1998-2007 Randy Heit
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**---------------------------------------------------------------------------
**
*/
// HEADER FILES ------------------------------------------------------------
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <assert.h>
#include "templates.h"
#include "doomtype.h"
#include "cmdlib.h"
#include "c_console.h"
#include "c_dispatch.h"
#include "m_argv.h"
#include "doomstat.h"
#include "d_player.h"
#include "configfile.h"
#include "m_crc32.h"
#include "v_text.h"
#include "d_net.h"
#include "d_main.h"
#include "serializer.h"
#include "menu/menu.h"
#include "vm.h"
// MACROS ------------------------------------------------------------------
// TYPES -------------------------------------------------------------------
class DWaitingCommand : public DThinker
{
DECLARE_CLASS (DWaitingCommand, DThinker)
public:
DWaitingCommand (const char *cmd, int tics);
~DWaitingCommand ();
void Serialize(FSerializer &arc);
void Tick ();
private:
DWaitingCommand ();
char *Command;
int TicsLeft;
};
class DStoredCommand : public DThinker
{
DECLARE_CLASS (DStoredCommand, DThinker)
public:
DStoredCommand (FConsoleCommand *com, const char *cmd);
~DStoredCommand ();
void Tick ();
private:
DStoredCommand ();
FConsoleCommand *Command;
char *Text;
};
struct FActionMap
{
FButtonStatus *Button;
unsigned int Key; // value from passing Name to MakeKey()
char Name[12];
};
// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------
// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------
// PRIVATE FUNCTION PROTOTYPES ---------------------------------------------
static long ParseCommandLine (const char *args, int *argc, char **argv, bool no_escapes);
static FConsoleCommand *FindNameInHashTable (FConsoleCommand **table, const char *name, size_t namelen);
static FConsoleCommand *ScanChainForName (FConsoleCommand *start, const char *name, size_t namelen, FConsoleCommand **prev);
// EXTERNAL DATA DECLARATIONS ----------------------------------------------
// PUBLIC DATA DEFINITIONS -------------------------------------------------
CVAR (Bool, lookspring, true, CVAR_ARCHIVE); // Generate centerview when -mlook encountered?
FConsoleCommand *Commands[FConsoleCommand::HASH_SIZE];
FButtonStatus Button_Mlook, Button_Klook, Button_Use, Button_AltAttack,
Button_Attack, Button_Speed, Button_MoveRight, Button_MoveLeft,
Button_Strafe, Button_LookDown, Button_LookUp, Button_Back,
Button_Forward, Button_Right, Button_Left, Button_MoveDown,
Button_MoveUp, Button_Jump, Button_ShowScores, Button_Crouch,
Button_Zoom, Button_Reload,
Button_User1, Button_User2, Button_User3, Button_User4,
Button_AM_PanLeft, Button_AM_PanRight, Button_AM_PanDown, Button_AM_PanUp,
Button_AM_ZoomIn, Button_AM_ZoomOut;
bool ParsingKeyConf;
// To add new actions, go to the console and type "key <action name>".
// This will give you the key value to use in the first column. Then
// insert your new action into this list so that the keys remain sorted
// in ascending order. No two keys can be identical. If yours matches
// an existing key, change the name of your action.
FActionMap ActionMaps[] =
{
{ &Button_AM_PanLeft, 0x0d52d67b, "am_panleft"},
{ &Button_User2, 0x125f5226, "user2" },
{ &Button_Jump, 0x1eefa611, "jump" },
{ &Button_Right, 0x201f1c55, "right" },
{ &Button_Zoom, 0x20ccc4d5, "zoom" },
{ &Button_Back, 0x23a99cd7, "back" },
{ &Button_AM_ZoomIn, 0x41df90c2, "am_zoomin"},
{ &Button_Reload, 0x426b69e7, "reload" },
{ &Button_LookDown, 0x4463f43a, "lookdown" },
{ &Button_AM_ZoomOut, 0x51f7a334, "am_zoomout"},
{ &Button_User4, 0x534c30ee, "user4" },
{ &Button_Attack, 0x5622bf42, "attack" },
{ &Button_User1, 0x577712d0, "user1" },
{ &Button_Klook, 0x57c25cb2, "klook" },
{ &Button_Forward, 0x59f3e907, "forward" },
{ &Button_MoveDown, 0x6167ce99, "movedown" },
{ &Button_AltAttack, 0x676885b8, "altattack" },
{ &Button_MoveLeft, 0x6fa41b84, "moveleft" },
{ &Button_MoveRight, 0x818f08e6, "moveright" },
{ &Button_AM_PanRight, 0x8197097b, "am_panright"},
{ &Button_AM_PanUp, 0x8d89955e, "am_panup"} ,
{ &Button_Mlook, 0xa2b62d8b, "mlook" },
{ &Button_Crouch, 0xab2c3e71, "crouch" },
{ &Button_Left, 0xb000b483, "left" },
{ &Button_LookUp, 0xb62b1e49, "lookup" },
{ &Button_User3, 0xb6f8fe92, "user3" },
{ &Button_Strafe, 0xb7e6a54b, "strafe" },
{ &Button_AM_PanDown, 0xce301c81, "am_pandown"},
{ &Button_ShowScores, 0xd5897c73, "showscores" },
{ &Button_Speed, 0xe0ccb317, "speed" },
{ &Button_Use, 0xe0cfc260, "use" },
{ &Button_MoveUp, 0xfdd701c7, "moveup" },
};
#define NUM_ACTIONS countof(ActionMaps)
// PRIVATE DATA DEFINITIONS ------------------------------------------------
static const char *KeyConfCommands[] =
{
"alias",
"defaultbind",
"addkeysection",
"addmenukey",
"addslotdefault",
"weaponsection",
"setslot",
"addplayerclass",
"clearplayerclasses"
};
// CODE --------------------------------------------------------------------
IMPLEMENT_CLASS(DWaitingCommand, false, false)
void DWaitingCommand::Serialize(FSerializer &arc)
{
Super::Serialize (arc);
arc("command", Command)
("ticsleft", TicsLeft);
}
DWaitingCommand::DWaitingCommand ()
{
Command = NULL;
TicsLeft = 1;
}
DWaitingCommand::DWaitingCommand (const char *cmd, int tics)
{
Command = copystring (cmd);
TicsLeft = tics+1;
}
DWaitingCommand::~DWaitingCommand ()
{
if (Command != NULL)
{
delete[] Command;
}
}
void DWaitingCommand::Tick ()
{
if (--TicsLeft == 0)
{
AddCommandString (Command);
Destroy ();
}
}
IMPLEMENT_CLASS(DStoredCommand, false, false)
DStoredCommand::DStoredCommand ()
{
Text = NULL;
Destroy ();
}
DStoredCommand::DStoredCommand (FConsoleCommand *command, const char *args)
{
Command = command;
Text = copystring (args);
}
DStoredCommand::~DStoredCommand ()
{
if (Text != NULL)
{
delete[] Text;
}
}
void DStoredCommand::Tick ()
{
if (Text != NULL && Command != NULL)
{
FCommandLine args (Text);
Command->Run (args, players[consoleplayer].mo, 0);
}
Destroy ();
}
static int ListActionCommands (const char *pattern)
{
char matcher[16];
unsigned int i;
int count = 0;
for (i = 0; i < NUM_ACTIONS; ++i)
{
if (pattern == NULL || CheckWildcards (pattern,
(mysnprintf (matcher, countof(matcher), "+%s", ActionMaps[i].Name), matcher)))
{
Printf ("+%s\n", ActionMaps[i].Name);
count++;
}
if (pattern == NULL || CheckWildcards (pattern,
(mysnprintf (matcher, countof(matcher), "-%s", ActionMaps[i].Name), matcher)))
{
Printf ("-%s\n", ActionMaps[i].Name);
count++;
}
}
return count;
}
/* ======================================================================== */
/* By Paul Hsieh (C) 2004, 2005. Covered under the Paul Hsieh derivative
license. See:
http://www.azillionmonkeys.com/qed/weblicense.html for license details.
http://www.azillionmonkeys.com/qed/hash.html */
#undef get16bits
#if (defined(__GNUC__) && defined(__i386__)) || defined(__WATCOMC__) \
|| defined(_MSC_VER) || defined (__BORLANDC__) || defined (__TURBOC__)
#define get16bits(d) (*((const uint16_t *) (d)))
#endif
#if !defined (get16bits)
#define get16bits(d) ((((uint32_t)(((const uint8_t *)(d))[1])) << 8)\
+(uint32_t)(((const uint8_t *)(d))[0]) )
#endif
uint32_t SuperFastHash (const char *data, size_t len)
{
uint32_t hash = 0, tmp;
size_t rem;
if (len == 0 || data == NULL) return 0;
rem = len & 3;
len >>= 2;
/* Main loop */
for (;len > 0; len--)
{
hash += get16bits (data);
tmp = (get16bits (data+2) << 11) ^ hash;
hash = (hash << 16) ^ tmp;
data += 2*sizeof (uint16_t);
hash += hash >> 11;
}
/* Handle end cases */
switch (rem)
{
case 3: hash += get16bits (data);
hash ^= hash << 16;
hash ^= data[sizeof (uint16_t)] << 18;
hash += hash >> 11;
break;
case 2: hash += get16bits (data);
hash ^= hash << 11;
hash += hash >> 17;
break;
case 1: hash += *data;
hash ^= hash << 10;
hash += hash >> 1;
}
/* Force "avalanching" of final 127 bits */
hash ^= hash << 3;
hash += hash >> 5;
hash ^= hash << 4;
hash += hash >> 17;
hash ^= hash << 25;
hash += hash >> 6;
return hash;
}
/* A modified version to do a case-insensitive hash */
#undef get16bits
#define get16bits(d) ((((uint32_t)tolower(((const uint8_t *)(d))[1])) << 8)\
+(uint32_t)tolower(((const uint8_t *)(d))[0]) )
uint32_t SuperFastHashI (const char *data, size_t len)
{
uint32_t hash = 0, tmp;
size_t rem;
if (len <= 0 || data == NULL) return 0;
rem = len & 3;
len >>= 2;
/* Main loop */
for (;len > 0; len--)
{
hash += get16bits (data);
tmp = (get16bits (data+2) << 11) ^ hash;
hash = (hash << 16) ^ tmp;
data += 2*sizeof (uint16_t);
hash += hash >> 11;
}
/* Handle end cases */
switch (rem)
{
case 3: hash += get16bits (data);
hash ^= hash << 16;
hash ^= tolower(data[sizeof (uint16_t)]) << 18;
hash += hash >> 11;
break;
case 2: hash += get16bits (data);
hash ^= hash << 11;
hash += hash >> 17;
break;
case 1: hash += tolower(*data);
hash ^= hash << 10;
hash += hash >> 1;
}
/* Force "avalanching" of final 127 bits */
hash ^= hash << 3;
hash += hash >> 5;
hash ^= hash << 4;
hash += hash >> 17;
hash ^= hash << 25;
hash += hash >> 6;
return hash;
}
/* ======================================================================== */
unsigned int MakeKey (const char *s)
{
if (s == NULL)
{
return 0;
}
return SuperFastHashI (s, strlen (s));
}
unsigned int MakeKey (const char *s, size_t len)
{
return SuperFastHashI (s, len);
}
// FindButton scans through the actionbits[] array
// for a matching key and returns an index or -1 if
// the key could not be found. This uses binary search,
// so actionbits[] must be sorted in ascending order.
FButtonStatus *FindButton (unsigned int key)
{
const FActionMap *bit;
bit = BinarySearch<FActionMap, unsigned int>
(ActionMaps, NUM_ACTIONS, &FActionMap::Key, key);
return bit ? bit->Button : NULL;
}
bool FButtonStatus::PressKey (int keynum)
{
int i, open;
keynum &= KEY_DBLCLICKED-1;
if (keynum == 0)
{ // Issued from console instead of a key, so force on
Keys[0] = 0xffff;
for (i = MAX_KEYS-1; i > 0; --i)
{
Keys[i] = 0;
}
}
else
{
for (i = MAX_KEYS-1, open = -1; i >= 0; --i)
{
if (Keys[i] == 0)
{
open = i;
}
else if (Keys[i] == keynum)
{ // Key is already down; do nothing
return false;
}
}
if (open < 0)
{ // No free key slots, so do nothing
Printf ("More than %u keys pressed for a single action!\n", MAX_KEYS);
return false;
}
Keys[open] = keynum;
}
uint8_t wasdown = bDown;
bDown = bWentDown = true;
// Returns true if this key caused the button to go down.
return !wasdown;
}
bool FButtonStatus::ReleaseKey (int keynum)
{
int i, numdown, match;
uint8_t wasdown = bDown;
keynum &= KEY_DBLCLICKED-1;
if (keynum == 0)
{ // Issued from console instead of a key, so force off
for (i = MAX_KEYS-1; i >= 0; --i)
{
Keys[i] = 0;
}
bWentUp = true;
bDown = false;
}
else
{
for (i = MAX_KEYS-1, numdown = 0, match = -1; i >= 0; --i)
{
if (Keys[i] != 0)
{
++numdown;
if (Keys[i] == keynum)
{
match = i;
}
}
}
if (match < 0)
{ // Key was not down; do nothing
return false;
}
Keys[match] = 0;
bWentUp = true;
if (--numdown == 0)
{
bDown = false;
}
}
// Returns true if releasing this key caused the button to go up.
return wasdown && !bDown;
}
void ResetButtonTriggers ()
{
for (int i = NUM_ACTIONS-1; i >= 0; --i)
{
ActionMaps[i].Button->ResetTriggers ();
}
}
void ResetButtonStates ()
{
for (int i = NUM_ACTIONS-1; i >= 0; --i)
{
FButtonStatus *button = ActionMaps[i].Button;
if (button != &Button_Mlook && button != &Button_Klook)
{
button->ReleaseKey (0);
}
button->ResetTriggers ();
}
}
void C_DoCommand (const char *cmd, int keynum)
{
FConsoleCommand *com;
const char *end;
const char *beg;
// Skip any beginning whitespace
while (*cmd && *cmd <= ' ')
cmd++;
// Find end of the command name
if (*cmd == '\"')
{
for (end = beg = cmd+1; *end && *end != '\"'; ++end)
;
}
else
{
beg = cmd;
for (end = cmd+1; *end > ' '; ++end)
;
}
const size_t len = end - beg;
if (ParsingKeyConf)
{
int i;
for (i = countof(KeyConfCommands)-1; i >= 0; --i)
{
if (strnicmp (beg, KeyConfCommands[i], len) == 0 &&
KeyConfCommands[i][len] == 0)
{
break;
}
}
if (i < 0)
{
Printf ("Invalid command for KEYCONF: %s\n", beg);
return;
}
}
// Check if this is an action
if (*beg == '+' || *beg == '-')
{
FButtonStatus *button;
button = FindButton (MakeKey (beg + 1, end - beg - 1));
if (button != NULL)
{
if (*beg == '+')
{
button->PressKey (keynum);
}
else
{
button->ReleaseKey (keynum);
if (button == &Button_Mlook && lookspring)
{
Net_WriteByte (DEM_CENTERVIEW);
}
}
return;
}
}
// Parse it as a normal command
// Checking for matching commands follows this search order:
// 1. Check the Commands[] hash table
// 2. Check the CVars list
if ( (com = FindNameInHashTable (Commands, beg, len)) )
{
if (gamestate != GS_STARTUP || ParsingKeyConf ||
(len == 3 && strnicmp (beg, "set", 3) == 0) ||
(len == 7 && strnicmp (beg, "logfile", 7) == 0) ||
(len == 9 && strnicmp (beg, "unbindall", 9) == 0) ||
(len == 4 && strnicmp (beg, "bind", 4) == 0) ||
(len == 4 && strnicmp (beg, "exec", 4) == 0) ||
(len ==10 && strnicmp (beg, "doublebind", 10) == 0) ||
(len == 6 && strnicmp (beg, "pullin", 6) == 0)
)
{
FCommandLine args (beg);
com->Run (args, players[consoleplayer].mo, keynum);
}
else
{
if (len == 4 && strnicmp(beg, "warp", 4) == 0)
{
StoredWarp = beg;
}
else
{
Create<DStoredCommand> (com, beg);
}
}
}
else
{ // Check for any console vars that match the command
FBaseCVar *var = FindCVarSub (beg, int(len));
if (var != NULL)
{
FCommandLine args (beg);
if (args.argc() >= 2)
{ // Set the variable
var->CmdSet (args[1]);
}
else
{ // Get the variable's value
Printf ("\"%s\" is \"%s\"\n", var->GetName(), var->GetHumanString());
}
}
else
{ // We don't know how to handle this command
Printf ("Unknown command \"%.*s\"\n", (int)len, beg);
}
}
}
// This is only accessible to the special menu item to run CCMDs.
DEFINE_ACTION_FUNCTION(DOptionMenuItemCommand, DoCommand)
{
if (CurrentMenu == nullptr) return 0;
PARAM_PROLOGUE;
PARAM_STRING(cmd);
C_DoCommand(cmd);
return 0;
}
void AddCommandString (char *cmd, int keynum)
{
char *brkpt;
int more;
if (cmd)
{
while (*cmd)
{
brkpt = cmd;
while (*brkpt != ';' && *brkpt != '\0')
{
if (*brkpt == '\"')
{
brkpt++;
while (*brkpt != '\0' && (*brkpt != '\"' || *(brkpt-1) == '\\'))
brkpt++;
}
if (*brkpt != '\0')
brkpt++;
}
if (*brkpt == ';')
{
*brkpt = '\0';
more = 1;
}
else
{
more = 0;
}
// Intercept wait commands here. Note: wait must be lowercase
while (*cmd && *cmd <= ' ')
cmd++;
if (*cmd)
{
if (!ParsingKeyConf &&
cmd[0] == 'w' && cmd[1] == 'a' && cmd[2] == 'i' && cmd[3] == 't' &&
(cmd[4] == 0 || cmd[4] == ' '))
{
int tics;
if (cmd[4] == ' ')
{
tics = (int)strtoll (cmd + 5, NULL, 0);
}
else
{
tics = 1;
}
if (tics > 0)
{
if (more)
{ // The remainder of the command will be executed later
// Note that deferred commands lose track of which key
// (if any) they were pressed from.
*brkpt = ';';
Create<DWaitingCommand> (brkpt, tics);
}
return;
}
}
else
{
C_DoCommand (cmd, keynum);
}
}
if (more)
{
*brkpt = ';';
}
cmd = brkpt + more;
}
}
}
// ParseCommandLine
//
// Parse a command line (passed in args). If argc is non-NULL, it will
// be set to the number of arguments. If argv is non-NULL, it will be
// filled with pointers to each argument; argv[0] should be initialized
// to point to a buffer large enough to hold all the arguments. The
// return value is the necessary size of this buffer.
//
// Special processing:
// Inside quoted strings, \" becomes just "
// \\ becomes just a single backslash
// \c becomes just TEXTCOLOR_ESCAPE
// $<cvar> is replaced by the contents of <cvar>
static long ParseCommandLine (const char *args, int *argc, char **argv, bool no_escapes)
{
int count;
char *buffplace;
count = 0;
buffplace = NULL;
if (argv != NULL)
{
buffplace = argv[0];
}
for (;;)
{
while (*args <= ' ' && *args)
{ // skip white space
args++;
}
if (*args == 0)
{
break;
}
else if (*args == '\"')
{ // read quoted string
char stuff;
if (argv != NULL)
{
argv[count] = buffplace;
}
count++;
args++;
do
{
stuff = *args++;
if (!no_escapes && stuff == '\\' && *args == '\"')
{
stuff = '\"', args++;
}
else if (!no_escapes && stuff == '\\' && *args == '\\')
{
args++;
}
else if (!no_escapes && stuff == '\\' && *args == 'c')
{
stuff = TEXTCOLOR_ESCAPE, args++;
}
else if (stuff == '\"')
{
stuff = 0;
}
else if (stuff == 0)
{
args--;
}
if (argv != NULL)
{
*buffplace = stuff;
}
buffplace++;
} while (stuff);
}
else
{ // read unquoted string
const char *start = args++, *end;
FBaseCVar *var;
UCVarValue val;
while (*args && *args > ' ' && *args != '\"')
args++;
if (*start == '$' && (var = FindCVarSub (start+1, int(args-start-1))))
{
val = var->GetGenericRep (CVAR_String);
start = val.String;
end = start + strlen (start);
}
else
{
end = args;
}
if (argv != NULL)
{
argv[count] = buffplace;
while (start < end)
*buffplace++ = *start++;
*buffplace++ = 0;
}
else
{
buffplace += end - start + 1;
}
count++;
}
}
if (argc != NULL)
{
*argc = count;
}
return (long)(buffplace - (char *)0);
}
FCommandLine::FCommandLine (const char *commandline, bool no_escapes)
{
cmd = commandline;
_argc = -1;
_argv = NULL;
noescapes = no_escapes;
}
FCommandLine::~FCommandLine ()
{
if (_argv != NULL)
{
delete[] _argv;
}
}
void FCommandLine::Shift()
{
// Only valid after _argv has been filled.
for (int i = 1; i < _argc; ++i)
{
_argv[i - 1] = _argv[i];
}
}
int FCommandLine::argc ()
{
if (_argc == -1)
{
argsize = ParseCommandLine (cmd, &_argc, NULL, noescapes);
}
return _argc;
}
char *FCommandLine::operator[] (int i)
{
if (_argv == NULL)
{
int count = argc();
_argv = new char *[count + (argsize+sizeof(char*)-1)/sizeof(char*)];
_argv[0] = (char *)_argv + count*sizeof(char *);
ParseCommandLine (cmd, NULL, _argv, noescapes);
}
return _argv[i];
}
static FConsoleCommand *ScanChainForName (FConsoleCommand *start, const char *name, size_t namelen, FConsoleCommand **prev)
{
int comp;
*prev = NULL;
while (start)
{
comp = strnicmp (start->m_Name, name, namelen);
if (comp > 0)
return NULL;
else if (comp == 0 && start->m_Name[namelen] == 0)
return start;
*prev = start;
start = start->m_Next;
}
return NULL;
}
static FConsoleCommand *FindNameInHashTable (FConsoleCommand **table, const char *name, size_t namelen)
{
FConsoleCommand *dummy;
return ScanChainForName (table[MakeKey (name, namelen) % FConsoleCommand::HASH_SIZE], name, namelen, &dummy);
}
bool FConsoleCommand::AddToHash (FConsoleCommand **table)
{
unsigned int key;
FConsoleCommand *insert, **bucket;
key = MakeKey (m_Name);
bucket = &table[key % HASH_SIZE];
if (ScanChainForName (*bucket, m_Name, strlen (m_Name), &insert))
{
return false;
}
else
{
if (insert)
{
m_Next = insert->m_Next;
if (m_Next)
m_Next->m_Prev = &m_Next;
insert->m_Next = this;
m_Prev = &insert->m_Next;
}
else
{
m_Next = *bucket;
*bucket = this;
m_Prev = bucket;
if (m_Next)
m_Next->m_Prev = &m_Next;
}
}
return true;
}
FConsoleCommand* FConsoleCommand::FindByName (const char* name)
{
return FindNameInHashTable (Commands, name, strlen (name));
}
FConsoleCommand::FConsoleCommand (const char *name, CCmdRun runFunc)
: m_RunFunc (runFunc)
{
static bool firstTime = true;
if (firstTime)
{
char tname[16];
unsigned int i;
firstTime = false;
// Add all the action commands for tab completion
for (i = 0; i < NUM_ACTIONS; i++)
{
strcpy (&tname[1], ActionMaps[i].Name);
tname[0] = '+';
C_AddTabCommand (tname);
tname[0] = '-';
C_AddTabCommand (tname);
}
}
int ag = strcmp (name, "kill");
if (ag == 0)
ag=0;
m_Name = copystring (name);
if (!AddToHash (Commands))
Printf ("FConsoleCommand c'tor: %s exists\n", name);
else
C_AddTabCommand (name);
}
FConsoleCommand::~FConsoleCommand ()
{
*m_Prev = m_Next;
if (m_Next)
m_Next->m_Prev = m_Prev;
C_RemoveTabCommand (m_Name);
delete[] m_Name;
}
void FConsoleCommand::Run (FCommandLine &argv, APlayerPawn *who, int key)
{
m_RunFunc (argv, who, key);
}
FConsoleAlias::FConsoleAlias (const char *name, const char *command, bool noSave)
: FConsoleCommand (name, NULL),
bRunning(false), bKill(false)
{
m_Command[noSave] = command;
m_Command[!noSave] = FString();
// If the command contains % characters, assume they are parameter markers
// for substitution when the command is executed.
bDoSubstitution = (strchr (command, '%') != NULL);
}
FConsoleAlias::~FConsoleAlias ()
{
m_Command[1] = m_Command[0] = FString();
}
// Given an argument vector, reconstitute the command line it could have been produced from.
FString BuildString (int argc, FString *argv)
{
if (argc == 1)
{
return *argv;
}
else
{
FString buf;
int arg;
for (arg = 0; arg < argc; arg++)
{
if (argv[arg][0] == '\0')
{ // It's an empty argument, we need to convert it to '""'
buf << "\"\" ";
}
else if (strchr(argv[arg], '"'))
{ // If it contains one or more quotes, we need to escape them.
buf << '"';
long substr_start = 0, quotepos;
while ((quotepos = argv[arg].IndexOf('"', substr_start)) >= 0)
{
if (substr_start < quotepos)
{
buf << argv[arg].Mid(substr_start, quotepos - substr_start);
}
buf << "\\\"";
substr_start = quotepos + 1;
}
buf << argv[arg].Mid(substr_start) << "\" ";
}
else if (strchr(argv[arg], ' '))
{ // If it contains a space, it needs to be quoted.
buf << '"' << argv[arg] << "\" ";
}
else
{
buf << argv[arg] << ' ';
}
}
return buf;
}
}
//===========================================================================
//
// SubstituteAliasParams
//
// Given an command line and a set of arguments, replace instances of
// %x or %{x} in the command line with argument x. If argument x does not
// exist, then the empty string is substituted in its place.
//
// Substitution is not done inside of quoted strings, unless that string is
// prepended with a % character.
//
// To avoid a substitution, use %%. The %% will be replaced by a single %.
//
//===========================================================================
FString SubstituteAliasParams (FString &command, FCommandLine &args)
{
// Do substitution by replacing %x with the argument x.
// If there is no argument x, then %x is simply removed.
// For some reason, strtoul's stop parameter is non-const.
char *p = command.LockBuffer(), *start = p;
unsigned long argnum;
FString buf;
bool inquote = false;
while (*p != '\0')
{
if (p[0] == '%' && ((p[1] >= '0' && p[1] <= '9') || p[1] == '{'))
{
// Do a substitution. Output what came before this.
buf.AppendCStrPart (start, p - start);
// Extract the argument number and substitute the corresponding argument.
argnum = strtoul (p + 1 + (p[1] == '{'), &start, 10);
if ((p[1] != '{' || *start == '}') && argnum < (unsigned long)args.argc())
{
buf += args[argnum];
}
p = (start += (p[1] == '{' && *start == '}'));
}
else if (p[0] == '%' && p[1] == '%')
{
// Do not substitute. Just collapse to a single %.
buf.AppendCStrPart (start, p - start + 1);
start = p = p + 2;
continue;
}
else if (p[0] == '%' && p[1] == '"')
{
// Collapse %" to " and remember that we're in a quote so when we
// see a " character again, we don't start skipping below.
if (!inquote)
{
inquote = true;
buf.AppendCStrPart(start, p - start);
start = p + 1;
}
else
{
inquote = false;
}
p += 2;
}
else if (p[0] == '\\' && p[1] == '"')
{
p += 2;
}
else if (p[0] == '"')
{
// Don't substitute inside quoted strings if it didn't start
// with a %"
if (!inquote)
{
p++;
while (*p != '\0' && (*p != '"' || *(p-1) == '\\'))
p++;
if (*p != '\0')
p++;
}
else
{
inquote = false;
p++;
}
}
else
{
p++;
}
}
// Return whatever was after the final substitution.
if (p > start)
{
buf.AppendCStrPart (start, p - start);
}
command.UnlockBuffer();
return buf;
}
static int DumpHash (FConsoleCommand **table, bool aliases, const char *pattern=NULL)
{
int bucket, count;
FConsoleCommand *cmd;
for (bucket = count = 0; bucket < FConsoleCommand::HASH_SIZE; bucket++)
{
cmd = table[bucket];
while (cmd)
{
if (CheckWildcards (pattern, cmd->m_Name))
{
if (cmd->IsAlias())
{
if (aliases)
{
++count;
static_cast<FConsoleAlias *>(cmd)->PrintAlias ();
}
}
else if (!aliases)
{
++count;
cmd->PrintCommand ();
}
}
cmd = cmd->m_Next;
}
}
return count;
}
void FConsoleAlias::PrintAlias ()
{
if (m_Command[0].IsNotEmpty())
{
Printf (TEXTCOLOR_YELLOW "%s : %s\n", m_Name, m_Command[0].GetChars());
}
if (m_Command[1].IsNotEmpty())
{
Printf (TEXTCOLOR_ORANGE "%s : %s\n", m_Name, m_Command[1].GetChars());
}
}
void FConsoleAlias::Archive (FConfigFile *f)
{
if (f != NULL && !m_Command[0].IsEmpty())
{
f->SetValueForKey ("Name", m_Name, true);
f->SetValueForKey ("Command", m_Command[0], true);
}
}
void C_ArchiveAliases (FConfigFile *f)
{
int bucket;
FConsoleCommand *alias;
for (bucket = 0; bucket < FConsoleCommand::HASH_SIZE; bucket++)
{
alias = Commands[bucket];
while (alias)
{
if (alias->IsAlias())
static_cast<FConsoleAlias *>(alias)->Archive (f);
alias = alias->m_Next;
}
}
}
void C_ClearAliases ()
{
int bucket;
FConsoleCommand *alias;
for (bucket = 0; bucket < FConsoleCommand::HASH_SIZE; bucket++)
{
alias = Commands[bucket];
while (alias)
{
FConsoleCommand *next = alias->m_Next;
if (alias->IsAlias())
static_cast<FConsoleAlias *>(alias)->SafeDelete();
alias = next;
}
}
}
CCMD(clearaliases)
{
C_ClearAliases();
}
// This is called only by the ini parser.
void C_SetAlias (const char *name, const char *cmd)
{
FConsoleCommand *prev, *alias, **chain;
chain = &Commands[MakeKey (name) % FConsoleCommand::HASH_SIZE];
alias = ScanChainForName (*chain, name, strlen (name), &prev);
if (alias != NULL)
{
if (!alias->IsAlias ())
{
//Printf (PRINT_BOLD, "%s is a command and cannot be an alias.\n", name);
return;
}
delete alias;
}
new FConsoleAlias (name, cmd, false);
}
CCMD (alias)
{
FConsoleCommand *prev, *alias, **chain;
if (argv.argc() == 1)
{
Printf ("Current alias commands:\n");
DumpHash (Commands, true);
}
else
{
chain = &Commands[MakeKey (argv[1]) % FConsoleCommand::HASH_SIZE];
if (argv.argc() == 2)
{ // Remove the alias
if ( (alias = ScanChainForName (*chain, argv[1], strlen (argv[1]), &prev)))
{
if (alias->IsAlias ())
{
static_cast<FConsoleAlias *> (alias)->SafeDelete ();
}
else
{
Printf ("%s is a normal command\n", alias->m_Name);
}
}
}
else
{ // Add/change the alias
alias = ScanChainForName (*chain, argv[1], strlen (argv[1]), &prev);
if (alias != NULL)
{
if (alias->IsAlias ())
{
static_cast<FConsoleAlias *> (alias)->Realias (argv[2], ParsingKeyConf);
}
else
{
Printf ("%s is a normal command\n", alias->m_Name);
alias = NULL;
}
}
else
{
new FConsoleAlias (argv[1], argv[2], ParsingKeyConf);
}
}
}
}
CCMD (cmdlist)
{
int count;
const char *filter = (argv.argc() == 1 ? NULL : argv[1]);
count = ListActionCommands (filter);
count += DumpHash (Commands, false, filter);
Printf ("%d commands\n", count);
}
CCMD (key)
{
if (argv.argc() > 1)
{
int i;
for (i = 1; i < argv.argc(); ++i)
{
unsigned int key = MakeKey (argv[i]);
Printf (" 0x%08x\n", key);
}
}
}
// Execute any console commands specified on the command line.
// These all begin with '+' as opposed to '-'.
FExecList *C_ParseCmdLineParams(FExecList *exec)
{
for (int currArg = 1; currArg < Args->NumArgs(); )
{
if (*Args->GetArg (currArg++) == '+')
{
FString cmdString;
int cmdlen = 1;
int argstart = currArg - 1;
while (currArg < Args->NumArgs())
{
if (*Args->GetArg (currArg) == '-' || *Args->GetArg (currArg) == '+')
break;
currArg++;
cmdlen++;
}
cmdString = BuildString (cmdlen, Args->GetArgList (argstart));
if (!cmdString.IsEmpty())
{
if (exec == NULL)
{
exec = new FExecList;
}
exec->AddCommand(&cmdString[1]);
}
}
}
return exec;
}
bool FConsoleCommand::IsAlias ()
{
return false;
}
bool FConsoleAlias::IsAlias ()
{
return true;
}
void FConsoleAlias::Run (FCommandLine &args, APlayerPawn *who, int key)
{
if (bRunning)
{
Printf ("Alias %s tried to recurse.\n", m_Name);
return;
}
int index = !m_Command[1].IsEmpty();
FString savedcommand = m_Command[index], mycommand;
m_Command[index] = FString();
if (bDoSubstitution)
{
mycommand = SubstituteAliasParams (savedcommand, args);
}
else
{
mycommand = savedcommand;
}
bRunning = true;
AddCommandString (mycommand.LockBuffer(), key);
mycommand.UnlockBuffer();
bRunning = false;
if (m_Command[index].IsEmpty())
{ // The alias is unchanged, so put the command back so it can be used again.
// If the command had been non-empty, then that means that executing this
// alias caused it to realias itself, so the old command will be forgotten
// once this function returns.
m_Command[index] = savedcommand;
}
if (bKill)
{ // The alias wants to remove itself
delete this;
}
}
void FConsoleAlias::Realias (const char *command, bool noSave)
{
if (!noSave && !m_Command[1].IsEmpty())
{
noSave = true;
}
m_Command[noSave] = command;
// If the command contains % characters, assume they are parameter markers
// for substitution when the command is executed.
bDoSubstitution = (strchr (command, '%') != NULL);
bKill = false;
}
void FConsoleAlias::SafeDelete ()
{
if (!bRunning)
{
delete this;
}
else
{
bKill = true;
}
}
void FExecList::AddCommand(const char *cmd, const char *file)
{
// Pullins are special and need to be separated from general commands.
// They also turned out to be a really bad idea, since they make things
// more complicated. :(
if (file != NULL && strnicmp(cmd, "pullin", 6) == 0 && isspace(cmd[6]))
{
FCommandLine line(cmd);
C_SearchForPullins(this, file, line);
}
// Recursive exec: Parse this file now.
else if (strnicmp(cmd, "exec", 4) == 0 && isspace(cmd[4]))
{
FCommandLine argv(cmd);
for (int i = 1; i < argv.argc(); ++i)
{
C_ParseExecFile(argv[i], this);
}
}
else
{
Commands.Push(cmd);
}
}
void FExecList::ExecCommands() const
{
for (unsigned i = 0; i < Commands.Size(); ++i)
{
AddCommandString(Commands[i].LockBuffer());
Commands[i].UnlockBuffer();
}
}
void FExecList::AddPullins(TArray<FString> &wads) const
{
for (unsigned i = 0; i < Pullins.Size(); ++i)
{
D_AddFile(wads, Pullins[i]);
}
}
FExecList *C_ParseExecFile(const char *file, FExecList *exec)
{
FILE *f;
char cmd[4096];
int retval = 0;
if ( (f = fopen (file, "r")) )
{
while (fgets(cmd, countof(cmd)-1, f))
{
// Comments begin with //
char *stop = cmd + strlen(cmd) - 1;
char *comment = cmd;
int inQuote = 0;
if (*stop == '\n')
*stop-- = 0;
while (comment < stop)
{
if (*comment == '\"')
{
inQuote ^= 1;
}
else if (!inQuote && *comment == '/' && *(comment + 1) == '/')
{
break;
}
comment++;
}
if (comment == cmd)
{ // Comment at line beginning
continue;
}
else if (comment < stop)
{ // Comment in middle of line
*comment = 0;
}
if (exec == NULL)
{
exec = new FExecList;
}
exec->AddCommand(cmd, file);
}
if (!feof(f))
{
Printf("Error parsing \"%s\"\n", file);
}
fclose(f);
}
else
{
Printf ("Could not open \"%s\"\n", file);
}
return exec;
}
bool C_ExecFile (const char *file)
{
FExecList *exec = C_ParseExecFile(file, NULL);
if (exec != NULL)
{
exec->ExecCommands();
if (exec->Pullins.Size() > 0)
{
Printf(TEXTCOLOR_BOLD "Notice: Pullin files were ignored.\n");
}
delete exec;
}
return exec != NULL;
}
void C_SearchForPullins(FExecList *exec, const char *file, FCommandLine &argv)
{
const char *lastSlash;
assert(exec != NULL);
assert(file != NULL);
#ifdef __unix__
lastSlash = strrchr(file, '/');
#else
const char *lastSlash1, *lastSlash2;
lastSlash1 = strrchr(file, '/');
lastSlash2 = strrchr(file, '\\');
lastSlash = MAX(lastSlash1, lastSlash2);
#endif
for (int i = 1; i < argv.argc(); ++i)
{
// Try looking for the wad in the same directory as the .cfg
// before looking for it in the current directory.
if (lastSlash != NULL)
{
FString path(file, (lastSlash - file) + 1);
path += argv[i];
if (FileExists(path))
{
exec->Pullins.Push(path);
continue;
}
}
exec->Pullins.Push(argv[i]);
}
}
CCMD (pullin)
{
// Actual handling for pullin is now completely special-cased above
Printf (TEXTCOLOR_BOLD "Pullin" TEXTCOLOR_NORMAL " is only valid from .cfg\n"
"files and only when used at startup.\n");
}