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/*
Variables Plugin for Miranda-IM (www.miranda-im.org)
Copyright 2003-2006 P. Boon
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.
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 "stdafx.h"
struct ALIASREGISTER
{
wchar_t *szAlias;
unsigned int argc;
wchar_t **argv;
wchar_t *szTranslation;
};
static LIST<ALIASREGISTER> arAliases(5);
static mir_cs csAliasRegister;
static ALIASREGISTER* searchAliasRegister(wchar_t *szAlias)
{
if (szAlias == NULL || *szAlias == 0)
return NULL;
mir_cslock lck(csAliasRegister);
for (int i = 0; i < arAliases.getCount(); i++)
if (!mir_wstrcmp(arAliases[i]->szAlias, szAlias))
return arAliases[i];
return NULL;
}
static wchar_t *replaceArguments(wchar_t *res, wchar_t *tArg, wchar_t *rArg)
{
if (mir_wstrlen(tArg) == 0)
return res;
unsigned int cur = 0, ecur = 0;
while (*(res + cur) != 0) {
if ((*(res + cur) == '(') || (*(res + cur) == ',')) {
ecur = ++cur;
while ((*(res + ecur) != ')') && (*(res + ecur) != ','))
ecur++;
if (((signed int)mir_wstrlen(tArg) == (ecur - cur)) && (!wcsncmp(tArg, res + cur, mir_wstrlen(tArg)))) {
if (mir_wstrlen(rArg) > mir_wstrlen(tArg)) {
res = (wchar_t*)mir_realloc(res, (mir_wstrlen(res) + (mir_wstrlen(rArg) - mir_wstrlen(tArg)) + 1)*sizeof(wchar_t));
if (res == NULL)
return NULL;
}
memmove(res + ecur + (mir_wstrlen(rArg) - mir_wstrlen(tArg)), res + ecur, (mir_wstrlen(res + ecur) + 1)*sizeof(wchar_t));
wcsncpy(res + cur, rArg, mir_wstrlen(rArg));
}
}
cur++;
}
return res;
}
static wchar_t *parseTranslateAlias(ARGUMENTSINFO *ai)
{
ALIASREGISTER *areg = searchAliasRegister(ai->targv[0]);
if (areg == NULL || areg->argc != ai->argc - 1)
return NULL;
wchar_t *res = mir_wstrdup(areg->szTranslation);
for (unsigned 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(wchar_t *szAlias, unsigned int argc, wchar_t** argv, wchar_t *szTranslation)
{
if (szAlias == NULL || szTranslation == NULL || mir_wstrlen(szAlias) == 0)
return -1;
mir_cslock lck(csAliasRegister);
for (int i = 0; i < arAliases.getCount(); i++) {
ALIASREGISTER *p = arAliases[i];
if (mir_wstrcmp(p->szAlias, szAlias))
continue;
mir_free(p->szTranslation);
p->szTranslation = mir_wstrdup(szTranslation);
for (unsigned j = 0; j < p->argc; j++)
mir_free(p->argv[j]);
p->argc = argc;
p->argv = (wchar_t**)mir_realloc(p->argv, argc * sizeof(wchar_t*));
if (p->argv == NULL)
return -1;
for (unsigned j = 0; j < argc; j++) {
if (argv[j] != NULL)
p->argv[j] = mir_wstrdup(argv[j]);
else
p->argv[j] = NULL;
}
return 0;
}
wchar_t **pargv = (wchar_t**)mir_alloc(argc * sizeof(wchar_t*));
if (pargv == NULL)
return -1;
ALIASREGISTER *p = new ALIASREGISTER;
p->szAlias = mir_wstrdup(szAlias);
p->szTranslation = mir_wstrdup(szTranslation);
p->argc = argc;
p->argv = pargv;
for (unsigned j = 0; j < p->argc; j++) {
if (argv[j] != NULL)
p->argv[j] = mir_wstrdup(argv[j]);
else
p->argv[j] = NULL;
}
arAliases.insert(p);
return 0;
}
static wchar_t *parseAddAlias(ARGUMENTSINFO *ai)
{
if (ai->argc != 3)
return NULL;
char *szHelp, *szArgsA;
wchar_t *cur = ai->targv[1];
while (isValidTokenChar(*cur))
cur++;
ptrW alias(mir_wstrndup(ai->targv[1], cur - ai->targv[1]));
TArgList argv;
getArguments(cur, argv);
deRegisterToken(alias);
addToAliasRegister(alias, argv.getCount(), argv.getArray(), ai->targv[2]);
wchar_t *szArgs = NULL;
for (int i = 0; i < argv.getCount(); i++) {
if (i == 0)
szArgs = (wchar_t*)mir_calloc((mir_wstrlen(argv[i]) + 2)*sizeof(wchar_t));
else
szArgs = (wchar_t*)mir_realloc(szArgs, (mir_wstrlen(szArgs) + mir_wstrlen(argv[i]) + 2)*sizeof(wchar_t));
mir_wstrcat(szArgs, argv[i]);
if (i != argv.getCount() - 1)
mir_wstrcat(szArgs, L",");
}
int res;
if (szArgs != NULL && argv.getCount() > 0) {
szArgsA = mir_u2a(szArgs);
size_t size = 32 + mir_strlen(szArgsA);
szHelp = (char *)mir_alloc(size);
memset(szHelp, '\0', 32 + mir_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);
argv.destroy();
return (res == 0) ? mir_wstrdup(L"") : NULL;
}
void registerAliasTokens()
{
registerIntToken(ADDALIAS, parseAddAlias, TRF_FUNCTION | TRF_UNPARSEDARGS, LPGEN("Variables") "\t(x,y)\t" LPGEN("stores y as alias named x"));//TRF_UNPARSEDARGS);
}
void unregisterAliasTokens()
{
for (int i = 0; i < arAliases.getCount(); i++) {
ALIASREGISTER *p = arAliases[i];
for (unsigned j = 0; j < p->argc; j++)
mir_free(p->argv[j]);
mir_free(p->argv);
mir_free(p->szAlias);
mir_free(p->szTranslation);
delete p;
}
}
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