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/*
Variables Plugin for Miranda-IM (www.miranda-im.org)
Copyright 2003-2006 P. Boon
This program is mir_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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "variables.h"
static CRITICAL_SECTION csAliasRegister;
static ALIASREGISTER *ar = NULL;
static unsigned int arCount = 0;
static ALIASREGISTER *searchAliasRegister(TCHAR *szAlias) {
ALIASREGISTER *res;
unsigned int i;
res = NULL;
if ((szAlias == NULL) || (_tcslen(szAlias) == 0)) {
return NULL;
}
EnterCriticalSection(&csAliasRegister);
for (i=0;i<arCount;i++) {
if (!_tcscmp(ar[i].szAlias, szAlias)) {
/* TODO: make a copy here? */
res = &ar[i];
LeaveCriticalSection(&csAliasRegister);
return res;
}
}
LeaveCriticalSection(&csAliasRegister);
return NULL;
}
static TCHAR *replaceArguments(TCHAR *res, TCHAR *tArg, TCHAR *rArg) {
unsigned int cur, ecur;
if ( _tcslen(tArg) == 0)
return res;
cur = ecur = 0;
while (*(res+cur) != _T('\0')) {
if ((*(res+cur) == _T('(')) || (*(res+cur) == _T(','))) {
ecur = ++cur;
while ( (*(res+ecur) != _T(')')) && (*(res+ecur) != _T(','))) {
ecur++;
}
if (((signed int)_tcslen(tArg) == (ecur-cur)) && (!_tcsncmp(tArg, res+cur, _tcslen(tArg)))) {
if ( _tcslen(rArg) > _tcslen(tArg)) {
res = (TCHAR*)mir_realloc(res, (_tcslen(res) + (_tcslen(rArg)-_tcslen(tArg)) + 1)*sizeof(TCHAR));
if (res == NULL)
return NULL;
}
MoveMemory(res+ecur+(_tcslen(rArg)-_tcslen(tArg)), res+ecur, (_tcslen(res+ecur)+1)*sizeof(TCHAR));
_tcsncpy(res+cur, rArg, _tcslen(rArg));
}
}
cur++;
}
return res;
}
static TCHAR *parseTranslateAlias(ARGUMENTSINFO *ai) {
unsigned int i;
TCHAR *res;
ALIASREGISTER *areg;
areg = searchAliasRegister(ai->targv[0]);
if ((areg == NULL) || (areg->argc != ai->argc-1)) {
return NULL;
}
res = mir_tstrdup(areg->szTranslation);
for (i=0;i<areg->argc;i++) {
res = replaceArguments(res, areg->argv[i], ai->targv[i+1]);
if (res == NULL) {
return NULL;
}
}
return res;
}
static int addToAliasRegister(TCHAR *szAlias, unsigned int argc, TCHAR** argv, TCHAR *szTranslation) {
unsigned int i, j;
if (szAlias == NULL || szTranslation == NULL || _tcslen(szAlias) == 0 )
return -1;
EnterCriticalSection(&csAliasRegister);
for (i=0;i<arCount;i++) {
if (!_tcscmp(ar[i].szAlias, szAlias)) {
mir_free(ar[i].szTranslation);
ar[i].szTranslation = mir_tstrdup(szTranslation);
for (j=0;j<ar[i].argc;j++) {
if (ar[i].argv[j] != NULL) {
mir_free(ar[i].argv[j]);
}
}
ar[i].argc = argc;
ar[i].argv = ( TCHAR** )mir_realloc(ar[i].argv, argc * sizeof(TCHAR*));
if (ar[i].argv == NULL) {
LeaveCriticalSection(&csAliasRegister);
return -1;
}
for (j=0;j<argc;j++) {
if (argv[j] != NULL)
ar[i].argv[j] = mir_tstrdup(argv[j]);
else
ar[i].argv[j] = NULL;
}
LeaveCriticalSection(&csAliasRegister);
return 0;
}
}
ar = ( ALIASREGISTER* )mir_realloc(ar, (arCount+1)*sizeof(ALIASREGISTER));
if (ar == NULL) {
LeaveCriticalSection(&csAliasRegister);
return -1;
}
ar[arCount].szAlias = mir_tstrdup(szAlias);
ar[arCount].szTranslation = mir_tstrdup(szTranslation);
ar[arCount].argc = argc;
ar[arCount].argv = ( TCHAR** )mir_alloc(argc * sizeof(TCHAR*));
if (ar[arCount].argv == NULL) {
LeaveCriticalSection(&csAliasRegister);
return -1;
}
for (j=0;j<ar[arCount].argc;j++) {
if (argv[j] != NULL)
ar[arCount].argv[j] = mir_tstrdup(argv[j]);
else
ar[arCount].argv[j] = NULL;
}
arCount += 1;
LeaveCriticalSection(&csAliasRegister);
return 0;
}
static TCHAR *parseAddAlias(ARGUMENTSINFO *ai) {
int res;
int argc, i;
TCHAR *cur, *alias, **argv, *szArgs;
char *szHelp, *szArgsA;
if (ai->argc != 3)
return NULL;
cur = ai->targv[1];
while (isValidTokenChar(*cur))
cur++;
alias = (TCHAR*)mir_calloc(((cur-ai->targv[1])+1)*sizeof(TCHAR));
if (alias == NULL)
return NULL;
_tcsncpy(alias, ai->targv[1], (cur-ai->targv[1]));
getArguments(cur, &argv, &argc);
deRegisterToken(alias);
addToAliasRegister(alias, argc, argv, ai->targv[2]);
szArgs = NULL;
for (i=0;i<argc;i++) {
if (i == 0)
szArgs = (TCHAR*)mir_calloc(( _tcslen(argv[i])+2)*sizeof(TCHAR));
else
szArgs = (TCHAR*)mir_realloc(szArgs, (_tcslen(szArgs) + _tcslen(argv[i]) + 2)*sizeof(TCHAR));
_tcscat(szArgs, argv[i]);
if (i != argc-1)
_tcscat(szArgs, _T(","));
}
if ((szArgs != NULL) && (argc > 0)) {
szArgsA = mir_t2a(szArgs);
int size = 32 + strlen(szArgsA);
szHelp = (char *)mir_alloc(size);
memset(szHelp, '\0', 32 + strlen(szArgsA));
mir_snprintf(szHelp, size, LPGEN("Alias")"\t(%s)\t"LPGEN("user defined"), szArgsA);
res = registerIntToken(alias, parseTranslateAlias, TRF_FUNCTION|TRF_UNPARSEDARGS, szHelp);
mir_free(szArgsA);
}
else {
szHelp = ( char* )mir_alloc(32);
memset(szHelp, '\0', 32);
mir_snprintf(szHelp, 32, LPGEN("Alias")"\t\t"LPGEN("user defined"));
res = registerIntToken(alias, parseTranslateAlias, TRF_FIELD|TRF_UNPARSEDARGS, szHelp);
}
mir_free(szArgs);
mir_free(szHelp);
return res==0?mir_tstrdup(_T("")):NULL;
}
int registerAliasTokens()
{
registerIntToken(_T(ADDALIAS), parseAddAlias, TRF_FUNCTION|TRF_UNPARSEDARGS, LPGEN("Variables")"\t(x,y)\t"LPGEN("stores y as alias named x"));//TRF_UNPARSEDARGS);
InitializeCriticalSection(&csAliasRegister);
return 0;
}
void unregisterAliasTokens()
{
DeleteCriticalSection(&csAliasRegister);
}
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