Parse_stat MCFind::parse(MCScriptPoint &sp)
{
Symbol_type type;
const LT *te;
initpoint(sp);
if (sp.next(type) != PS_NORMAL)
{
MCperror->add
(PE_FIND_NOSTRING, sp);
return PS_ERROR;
}
if (sp.lookup(SP_FIND, te) == PS_NORMAL)
mode = (Find_mode)te->which;
else
sp.backup();
if (sp.parseexp(False, True, &tofind) != PS_NORMAL)
{
MCperror->add
(PE_FIND_BADSTRING, sp);
return PS_ERROR;
}
if (sp.skip_token(SP_FACTOR, TT_IN) == PS_NORMAL)
{
field = new MCChunk(False);
if (field->parse(sp, False) != PS_NORMAL)
{
MCperror->add
(PE_FIND_BADFIELD, sp);
return PS_ERROR;
}
}
return PS_NORMAL;
}
Parse_stat MCChoose::parse(MCScriptPoint &sp)
{
Symbol_type type;
const LT *te;
initpoint(sp);
sp.skip_token(SP_FACTOR, TT_THE);
if (sp.next(type) != PS_NORMAL)
{
MCperror->add(PE_CHOOSE_NOTOKEN, sp);
return PS_ERROR;
}
if (sp.lookup(SP_TOOL, te) != PS_NORMAL)
{
sp.backup();
if (sp.parseexp(False, True, &etool) != PS_NORMAL)
{
MCperror->add(PE_CHOOSE_BADEXP, sp);
return PS_ERROR;
}
sp.skip_token(SP_TOOL, TT_END);
return PS_NORMAL;
}
else
{
littool = (Tool)te->which;
while (sp.skip_token(SP_TOOL, TT_TOOL) == PS_NORMAL)
;
sp.skip_token(SP_TOOL, TT_END);
}
return PS_NORMAL;
}
Parse_stat MCExit::parse(MCScriptPoint &sp)
{
Symbol_type type;
const LT *te;
initpoint(sp);
if (sp.next(type) != PS_NORMAL
|| sp.lookup(SP_EXIT, te) != PS_NORMAL)
{
if (!sp.gethandler()->hasname(sp.gettoken_nameref()))
{
MCperror->add(PE_EXIT_BADDEST, sp);
return PS_ERROR;
}
exit = ES_EXIT_HANDLER;
}
else
switch (te->which)
{
case ET_ALL:
exit = ES_EXIT_ALL;
break;
case ET_REPEAT:
exit = ES_EXIT_REPEAT;
break;
case ET_SWITCH:
exit = ES_EXIT_SWITCH;
break;
case ET_TO:
if (sp.next(type) != PS_NORMAL)
{
MCperror->add
(PE_EXIT_NODEST, sp);
return PS_ERROR;
}
if (sp.lookup(SP_EXIT, te) != PS_NORMAL || te->which != ET_ALL)
{
MCperror->add
(PE_EXIT_BADDEST, sp);
return PS_ERROR;
}
exit = ES_EXIT_ALL;
break;
}
return PS_NORMAL;
}
Parse_stat MCWait::parse(MCScriptPoint &sp)
{
Symbol_type type;
const LT *te;
initpoint(sp);
if (sp.next(type) != PS_NORMAL)
{
MCperror->add
(PE_WAIT_NODURATION, sp);
return PS_ERROR;
}
if (sp.lookup(SP_REPEAT, te) == PS_NORMAL)
condition = (Repeat_form)te->which;
else
{
condition = RF_FOR;
sp.backup();
}
if (sp.skip_token(SP_MOVE, TT_UNDEFINED, MM_MESSAGES) == PS_NORMAL)
messages = True;
else
{
if (sp.parseexp(False, True, &duration) != PS_NORMAL)
{
MCperror->add
(PE_WAIT_BADCOND, sp);
return PS_ERROR;
}
if (condition == RF_FOR)
if (sp.skip_token(SP_FACTOR, TT_FUNCTION, F_MILLISECS) == PS_NORMAL)
units = F_MILLISECS;
else
if (sp.skip_token(SP_FACTOR, TT_FUNCTION, F_SECONDS) == PS_NORMAL
|| sp.skip_token(SP_FACTOR, TT_CHUNK, CT_SECOND) == PS_NORMAL)
units = F_SECONDS;
else
if (sp.skip_token(SP_FACTOR, TT_FUNCTION, F_TICKS) == PS_NORMAL)
units = F_TICKS;
else
units = F_TICKS;
if (sp.skip_token(SP_REPEAT, TT_UNDEFINED, RF_WITH) == PS_NORMAL)
{
sp.skip_token(SP_MOVE, TT_UNDEFINED, MM_MESSAGES);
messages = True;
}
}
return PS_NORMAL;
}
Parse_stat MCGlobal::parse(MCScriptPoint &sp)
{
initpoint(sp);
while (True)
{
Symbol_type type;
Parse_stat stat = sp.next(type);
if (stat == PS_EOL)
return PS_NORMAL;
const LT *te;
MCExpression *newfact = NULL;
if (stat != PS_NORMAL || type != ST_ID
|| sp.lookup(SP_FACTOR, te) != PS_NO_MATCH
|| sp.lookupconstant(&newfact) == PS_NORMAL)
{
delete newfact;
MCperror->add
(PE_GLOBAL_BADNAME, sp);
return PS_ERROR;
}
if (sp.gethandler() == NULL)
sp.gethlist()->newglobal(sp.gettoken_nameref());
else
sp.gethandler()->newglobal(sp.gettoken_nameref());
switch (sp.next(type))
{
case PS_NORMAL:
if (type != ST_SEP)
{
MCperror->add
(PE_STATEMENT_NOTSEP, sp);
return PS_ERROR;
}
break;
case PS_EOL:
case PS_EOF:
return PS_NORMAL;
default:
MCperror->add
(PE_STATEMENT_NOTSEP, sp);
return PS_ERROR;
}
}
return PS_NORMAL;
}
Parse_stat MCNext::parse(MCScriptPoint &sp)
{
Symbol_type type;
const LT *te;
initpoint(sp);
if (sp.next(type) != PS_NORMAL)
{
MCperror->add
(PE_NEXT_NOREPEAT, sp);
return PS_ERROR;
}
if (sp.lookup(SP_EXIT, te) != PS_NORMAL || te->which != ET_REPEAT)
{
MCperror->add
(PE_NEXT_NOTREPEAT, sp);
return PS_ERROR;
}
return PS_NORMAL;
}
Parse_stat MCReset::parse(MCScriptPoint &sp)
{
Symbol_type type;
const LT *te;
initpoint(sp);
sp.skip_token(SP_FACTOR, TT_THE);
if (sp.next(type) != PS_NORMAL)
{
MCperror->add
(PE_CHOOSE_NOTOKEN, sp);
return PS_ERROR;
}
if (sp.lookup(SP_RESET, te) != PS_NORMAL)
{
MCperror->add
(PE_RESET_NOTYPE, sp);
return PS_ERROR;
}
which = (Reset_type)te->which;
return PS_NORMAL;
}
Parse_stat MCMarking::parse(MCScriptPoint &sp)
{
Symbol_type type;
const LT *te;
initpoint(sp);
if (sp.next(type) != PS_NORMAL)
{
MCperror->add
(PE_MARK_NOCARDS, sp);
return PS_ERROR;
}
if (sp.lookup(SP_MARK, te) != PS_NORMAL)
{
sp.backup();
card = new MCChunk(False);
if (card->parse(sp, False) != PS_NORMAL)
{
MCperror->add
(PE_MARK_NOTCARDS, sp);
return PS_ERROR;
}
return PS_NORMAL;
}
if (te->which == MC_ALL)
{
if (sp.skip_token(SP_MARK, TT_UNDEFINED, MC_CARDS) != PS_NORMAL)
{
MCperror->add
(PE_MARK_NOCARDS, sp);
return PS_ERROR;
}
return PS_NORMAL;
}
if (te->which != MC_CARDS)
{
MCperror->add
(PE_MARK_NOCARDS, sp);
return PS_ERROR;
}
if (sp.next(type) != PS_NORMAL)
{
MCperror->add
(PE_MARK_NOBYORWHERE, sp);
return PS_ERROR;
}
if (sp.lookup(SP_MARK,te) != PS_NORMAL
|| te->which != MC_BY && te->which != MC_WHERE)
{
MCperror->add
(PE_MARK_NOTBYORWHERE, sp);
return PS_ERROR;
}
if (te->which == MC_WHERE)
{
if (sp.parseexp(False, True, &where) != PS_NORMAL)
{
MCperror->add
(PE_MARK_BADWHEREEXP, sp);
return PS_ERROR;
}
return PS_NORMAL;
}
if (sp.skip_token(SP_MARK, TT_UNDEFINED, MC_FINDING) != PS_NORMAL)
{
MCperror->add
(PE_MARK_NOFINDING, sp);
return PS_ERROR;
}
if (sp.next(type) != PS_NORMAL)
{
MCperror->add
(PE_MARK_NOSTRING, sp);
return PS_ERROR;
}
if (sp.lookup(SP_FIND, te) == PS_NORMAL)
mode = (Find_mode)te->which;
else
sp.backup();
if (sp.parseexp(False, True, &tofind) != PS_NORMAL)
{
MCperror->add
(PE_MARK_BADSTRING, sp);
return PS_ERROR;
}
if (sp.skip_token(SP_FACTOR, TT_IN) == PS_NORMAL)
{
field = new MCChunk(False);
if (field->parse(sp, False) != PS_NORMAL)
{
MCperror->add
(PE_MARK_BADFIELD, sp);
return PS_ERROR;
}
}
return PS_NORMAL;
}
Parse_stat MCConvert::parsedtformat(MCScriptPoint &sp, Convert_form &firstform,
Convert_form &secondform)
{
const LT *te;
Symbol_type type;
Boolean needformat = True;
Convert_form localeform = CF_UNDEFINED;
while (True)
{
if (sp.next(type) != PS_NORMAL)
{
if (needformat)
{
MCperror->add
(PE_CONVERT_NOFORMAT, sp);
return PS_ERROR;
}
else
return PS_NORMAL;
}
if (sp.lookup(SP_CONVERT, te) != PS_NORMAL)
{
if (needformat)
{
MCperror->add
(PE_CONVERT_NOTFORMAT, sp);
return PS_ERROR;
}
else
{
sp.backup();
break;
}
}
switch (te->which)
{
case CF_ABBREVIATED:
case CF_SHORT:
case CF_LONG:
case CF_INTERNET:
if (firstform == CF_UNDEFINED)
firstform = (Convert_form)te->which;
else
secondform = (Convert_form)te->which;
break;
case CF_SYSTEM:
case CF_ENGLISH:
localeform = (Convert_form)te->which;
break;
case CF_DATE:
case CF_TIME:
if (firstform == CF_UNDEFINED)
firstform = (Convert_form)(te->which + 1 + localeform);
else
if (firstform > CF_INTERNET)
{
if (secondform == CF_UNDEFINED)
secondform = (Convert_form)(te->which + 1 + localeform);
else
{
uint2 dummy = secondform;
dummy += te->which + localeform;
secondform = (Convert_form)dummy;
}
}
else
{
uint2 dummy = firstform;
dummy += te->which + localeform;
firstform = (Convert_form)dummy;
}
needformat = False;
break;
default:
firstform = (Convert_form)te->which;
return PS_NORMAL;
}
if (sp.skip_token(SP_FACTOR, TT_BINOP, O_AND) == PS_NORMAL)
{
if (needformat)
{
MCperror->add
(PE_CONVERT_BADAND, sp);
return PS_ERROR;
}
else
needformat = True;
}
else
if (!needformat)
break;
}
return PS_NORMAL;
}
Parse_stat MCSort::parse(MCScriptPoint &sp)
{
Symbol_type type;
const LT *te;
initpoint(sp);
while (True)
{
if (sp.next(type) != PS_NORMAL)
if (of == NULL && chunktype == CT_FIELD)
{
MCperror->add
(PE_SORT_NOTARGET, sp);
return PS_ERROR;
}
else
break;
if (sp.lookup(SP_SORT, te) == PS_NORMAL)
{
switch (te->which)
{
case ST_OF:
of = new MCChunk(True);
if (of->parse(sp, False) != PS_NORMAL)
{
MCperror->add
(PE_SORT_BADTARGET, sp);
return PS_ERROR;
}
break;
case ST_BY:
if (chunktype == CT_FIELD && of == NULL)
chunktype = CT_CARD;
if (sp.parseexp(False, True, &by) != PS_NORMAL)
{
MCperror->add
(PE_SORT_BADEXPRESSION, sp);
return PS_ERROR;
}
if (of == NULL && chunktype == CT_FIELD)
{
MCperror->add
(PE_SORT_NOTARGET, sp);
return PS_ERROR;
}
return PS_NORMAL;
case ST_LINES:
chunktype = CT_LINE;
break;
case ST_ITEMS:
chunktype = CT_ITEM;
break;
case ST_MARKED:
chunktype = CT_MARKED;
break;
case ST_CARDS:
if (chunktype != CT_MARKED)
chunktype = CT_CARD;
break;
case ST_TEXT:
case ST_NUMERIC:
case ST_INTERNATIONAL:
case ST_DATETIME:
format = (Sort_type)te->which;
break;
case ST_ASCENDING:
case ST_DESCENDING:
direction = (Sort_type)te->which;
break;
}
}
else
{
sp.backup();
if (of == NULL)
{
of = new MCChunk(True);
if (of->parse(sp, False) != PS_NORMAL)
{
MCperror->add
(PE_SORT_BADTARGET, sp);
return PS_ERROR;
}
}
else
break;
}
}
return PS_NORMAL;
}
Parse_stat MCLocaltoken::parse(MCScriptPoint &sp)
{
initpoint(sp);
while (True)
{
Symbol_type type;
Parse_stat stat = sp.next(type);
if (stat == PS_EOL)
return PS_NORMAL;
const LT *te;
MCExpression *newfact = NULL;
if (stat != PS_NORMAL || type != ST_ID
|| sp.lookup(SP_FACTOR, te) != PS_NO_MATCH
|| sp.lookupconstant(&newfact) == PS_NORMAL)
{
delete newfact;
MCperror->add(PE_LOCAL_BADNAME, sp);
return PS_ERROR;
}
MCAutoNameRef t_token_name;
/* UNCHECKED */ t_token_name . Clone(sp . gettoken_nameref());
MCExpression *e = NULL;
MCVarref *v = NULL;
if (sp.gethandler() == NULL)
if (constant)
sp.gethlist()->findconstant(t_token_name, &e);
else
sp.gethlist()->findvar(t_token_name, false, &v);
else
if (constant)
sp.gethandler()->findconstant(t_token_name, &e);
else
sp.gethandler()->findvar(t_token_name, &v);
if (e != NULL || v != NULL)
{
MCperror->add(PE_LOCAL_SHADOW, sp);
delete v;
delete e;
return PS_ERROR;
}
MCVariable *tmp;
for (tmp = MCglobals ; tmp != NULL ; tmp = tmp->getnext())
if (tmp -> hasname(t_token_name))
if (MCexplicitvariables)
{
MCperror->add(PE_LOCAL_SHADOW, sp);
return PS_ERROR;
}
MCVarref *tvar = NULL;
MCString init;
bool initialised = false;
if (sp.skip_token(SP_FACTOR, TT_BINOP, O_EQ) == PS_NORMAL)
{
if (sp.next(type) != PS_NORMAL || MCexplicitvariables && type != ST_LIT
&& type != ST_NUM)
{
if (constant)
MCperror->add(PE_CONSTANT_BADINIT, sp);
else
MCperror->add(PE_LOCAL_BADINIT, sp);
return PS_ERROR;
}
if (type == ST_MIN)
{ // negative initializer
const char *sptr = sp.gettoken().getstring();
if (sp.next(type) != PS_NORMAL || type != ST_NUM)
{
if (constant)
MCperror->add(PE_CONSTANT_BADINIT, sp);
else
MCperror->add(PE_LOCAL_BADINIT, sp);
return PS_ERROR;
}
uint4 l = sp.gettoken().getstring() + sp.gettoken().getlength() - sptr;
init.set(sptr, l);
}
else
init = sp.gettoken();
initialised = true;
}
else if (constant)
{
MCperror->add(PE_CONSTANT_NOINIT, sp);
return PS_ERROR;
}
else
init = NULL;
MCAutoNameRef t_init_name;
if (initialised)
/* UNCHECKED */ t_init_name . CreateWithOldString(init);
else
t_init_name . Clone(kMCEmptyName);
if (sp.gethandler() == NULL)
{
if (constant)
sp.gethlist()->newconstant(t_token_name, t_init_name);
else if (sp.gethlist()->newvar(t_token_name, t_init_name, &tvar, initialised) != PS_NORMAL)
{
MCperror->add(PE_LOCAL_BADNAME, sp);
return PS_ERROR;
}
}
else if (constant)
sp.gethandler()->newconstant(t_token_name, t_init_name);
else if (sp.gethandler()->newvar(t_token_name, t_init_name, &tvar) != PS_NORMAL)
{
MCperror->add(PE_LOCAL_BADNAME, sp);
return PS_ERROR;
}
delete tvar;
switch (sp.next(type))
{
case PS_NORMAL:
if (type != ST_SEP)
{
MCperror->add(PE_STATEMENT_NOTSEP, sp);
return PS_ERROR;
}
break;
case PS_EOL:
case PS_EOF:
return PS_NORMAL;
default:
MCperror->add(PE_STATEMENT_NOTSEP, sp);
return PS_ERROR;
}
}
return PS_NORMAL;
}
Parse_stat MCRepeat::parse(MCScriptPoint &sp)
{
Parse_stat stat;
Symbol_type type;
const LT *te;
initpoint(sp);
if ((stat = sp.next(type)) != PS_NORMAL)
{
if (stat == PS_EOL)
{
if (sp.skip_eol() != PS_NORMAL)
{
MCperror->add
(PE_REPEAT_BADCONDEOL, sp);
return PS_ERROR;
}
}
else
{
MCperror->add
(PE_REPEAT_BADCONDTYPE, sp);
return PS_ERROR;
}
}
else
switch (stat)
{
case PS_NORMAL:
if (sp.lookup(SP_REPEAT, te) != PS_NORMAL)
{
sp.backup();
form = RF_FOR;
if (sp.parseexp(False, True, &endcond) != PS_NORMAL)
{
MCperror->add
(PE_REPEAT_BADCOND, sp);
return PS_ERROR;
}
}
else
{
MCExpression *newfact = NULL;
switch (form = (Repeat_form)te->which)
{
case RF_FOREVER:
break;
case RF_FOR:
if (sp.skip_token(SP_REPEAT, TT_UNDEFINED, RF_EACH) == PS_NORMAL)
{
if (sp.next(type) != PS_NORMAL
|| sp.lookup(SP_UNIT, te) != PS_NORMAL
|| sp.next(type) != PS_NORMAL)
{
MCperror->add(PE_REPEAT_BADCOND, sp);
return PS_ERROR;
}
each = (File_unit)te->which;
if (sp.lookupconstant(&newfact) == PS_NORMAL
|| sp . findnewvar(sp.gettoken_nameref(), kMCEmptyName, &loopvar) != PS_NORMAL)
{
delete newfact;
MCperror->add(PE_REPEAT_BADWITHVAR, sp);
return PS_ERROR;
}
if (sp.skip_token(SP_FACTOR, TT_IN) != PS_NORMAL)
{
MCperror->add(PE_REPEAT_NOOF, sp);
return PS_ERROR;
}
}
case RF_UNTIL:
case RF_WHILE:
if (sp.parseexp(False, True, &endcond) != PS_NORMAL)
{
MCperror->add
(PE_REPEAT_BADCOND, sp);
return PS_ERROR;
}
break;
case RF_WITH:
if ((stat = sp.next(type)) != PS_NORMAL)
{
MCperror->add
(PE_REPEAT_NOWITHVAR, sp);
return PS_ERROR;
}
if (sp.lookupconstant(&newfact) == PS_NORMAL
|| sp.findnewvar(sp.gettoken_nameref(), kMCEmptyName, &loopvar) != PS_NORMAL)
{
delete newfact;
MCperror->add
(PE_REPEAT_BADWITHVAR, sp);
return PS_ERROR;
}
if ((stat = sp.next(type)) != PS_NORMAL)
{
MCperror->add
(PE_REPEAT_NOEQUALS, sp);
return PS_ERROR;
}
if (sp.lookup(SP_FACTOR, te) != PS_NORMAL
|| te->type != TT_BINOP || te->which != O_EQ)
{
MCperror->add
(PE_REPEAT_NOTEQUALS, sp);
return PS_ERROR;
}
if (sp.parseexp(False, True, &startcond) != PS_NORMAL)
{
MCperror->add
(PE_REPEAT_BADWITHSTARTEXP, sp);
return PS_ERROR;
}
if ((stat = sp.next(type)) != PS_NORMAL)
{
MCperror->add
(PE_REPEAT_NOWITHTO, sp);
return PS_ERROR;
}
if (sp.lookup(SP_FACTOR, te) != PS_NORMAL)
{
if (sp.gettoken() != "down")
{
MCperror->add
(PE_REPEAT_NOWITHTO, sp);
return PS_ERROR;
}
stepval = -1.0;
if (sp.skip_token(SP_FACTOR, TT_TO) != PS_NORMAL)
{
MCperror->add
(PE_REPEAT_NODOWNTO, sp);
return PS_ERROR;
}
}
else
if (te->type != TT_TO)
{
MCperror->add
(PE_REPEAT_NOTWITHTO, sp);
return PS_ERROR;
}
else
stepval = 1.0;
if (sp.parseexp(False, True, &endcond) != PS_NORMAL)
{
MCperror->add
(PE_REPEAT_BADWITHENDEXP, sp);
return PS_ERROR;
}
if (sp.skip_token(SP_REPEAT, TT_UNDEFINED, RF_STEP) == PS_NORMAL)
if (sp.parseexp(False, True, &step) != PS_NORMAL)
{
MCperror->add
(PE_REPEAT_BADWITHSTARTEXP, sp);
return PS_ERROR;
}
break;
default: /* repeat form */
fprintf(stderr, "Repeat: ERROR bad control form\n");
return PS_ERROR;
}
}
if (sp.skip_eol() != PS_NORMAL)
{
MCperror->add
(PE_REPEAT_BADFORMEOL, sp);
return PS_ERROR;
}
break;
case PS_EOL:
break;
default: /* token type */
MCperror->add
(PE_REPEAT_BADFORMTYPE, sp);
return PS_ERROR;
}
MCStatement *curstatement = NULL;
MCStatement *newstatement = NULL;
while (True)
{
switch (sp.next(type))
{
case PS_NORMAL:
if (type == ST_DATA)
newstatement = new MCEcho;
else if (sp.lookup(SP_COMMAND, te) != PS_NORMAL)
{
if (type == ST_ID)
newstatement = new MCComref(sp.gettoken_nameref());
else
{
MCperror->add
(PE_REPEAT_NOTCOMMAND, sp);
return PS_ERROR;
}
}
else
{
switch (te->type)
{
case TT_STATEMENT:
newstatement = MCN_new_statement(te->which);
break;
case TT_END:
if (sp.skip_token(SP_COMMAND, TT_STATEMENT, S_REPEAT) != PS_NORMAL)
{
MCperror->add
(PE_REPEAT_WANTEDENDREPEAT, sp);
return PS_ERROR;
}
return PS_NORMAL;
default:
MCperror->add
(PE_REPEAT_BADSTATEMENT, sp);
return PS_ERROR;
}
}
break;
case PS_EOL:
if (sp.skip_eol() != PS_NORMAL)
{
MCperror->add
(PE_REPEAT_WANTEDENDREPEAT, sp);
return PS_ERROR;
}
continue;
default:
MCperror->add
(PE_REPEAT_BADTOKEN, sp);
return PS_ERROR;
}
if (newstatement->parse(sp) != PS_NORMAL)
{
MCperror->add
(PE_REPEAT_BADCOMMAND, sp);
delete newstatement;
return PS_ERROR;
}
if (statements == NULL)
statements = curstatement = newstatement;
else
{
curstatement->setnext(newstatement);
curstatement = newstatement;
}
}
return PS_NORMAL;
}
Parse_stat MCIf::parse(MCScriptPoint &sp)
{
initpoint(sp);
if (sp.parseexp(False, True, &cond) != PS_NORMAL)
{
MCperror->add
(PE_IF_BADCONDITION, sp);
return PS_ERROR;
}
Symbol_type type;
const LT *te;
MCStatement *curstatement = NULL;
MCStatement *newstatement = NULL;
If_state state = IS_UNDEFINED;
If_format format = IF_UNDEFINED;
Boolean needstatement = False;
while (True)
{
switch (sp.next(type))
{
case PS_NORMAL:
if (type == ST_DATA || sp.lookup(SP_COMMAND, te) != PS_NORMAL)
{
if (needstatement)
{
if (type == ST_ID)
newstatement = new MCComref(sp.gettoken_nameref());
else if (type == ST_DATA)
newstatement = new MCEcho;
else
{
MCperror->add(PE_IF_NOTCOMMAND, sp);
return PS_ERROR;
}
}
else
{
if (state == IS_UNDEFINED)
{
MCperror->add(PE_IF_NOTHEN, sp);
return PS_ERROR;
}
sp.backup();
return PS_NORMAL;
}
}
else
{
switch (te->type)
{
case TT_STATEMENT:
if (needstatement)
newstatement = MCN_new_statement(te->which);
else
{
if (state == IS_UNDEFINED)
{
MCperror->add(PE_IF_NOTHEN, sp);
return PS_ERROR;
}
sp.backup();
return PS_NORMAL;
}
break;
case TT_THEN:
state = IS_THEN;
needstatement = True;
continue;
case TT_ELSE:
state = IS_ELSE;
needstatement = True;
continue;
case TT_END:
if (needstatement)
{
if (sp.skip_token(SP_COMMAND, TT_STATEMENT, S_IF) != PS_NORMAL)
{
MCperror->add(PE_IF_WANTEDENDIF, sp);
return PS_ERROR;
}
}
else
sp.backup();
return PS_NORMAL;
default: /* token type */
if (needstatement)
{
MCperror->add(PE_IF_WANTEDENDIF, sp);
return PS_ERROR;
}
sp.backup();
return PS_NORMAL;
}
}
break;
case PS_EOL:
switch (format)
{
case IF_UNDEFINED:
if (state == IS_THEN)
format = IF_MULTIPLE;
else
format = IF_SINGLE;
break;
case IF_ONELINE:
if (state == IS_ELSE)
return PS_NORMAL;
format = IF_SINGLE;
needstatement = False;
break;
case IF_SINGLE:
if (state == IS_ELSE)
format = IF_ELSEMULTIPLE;
else
format = IF_MULTIPLE;
break;
case IF_MULTIPLE:
if (state == IS_ELSE)
format = IF_ELSEMULTIPLE;
break;
case IF_ELSEMULTIPLE:
break;
}
if (sp.skip_eol() != PS_NORMAL)
{
MCperror->add(PE_IF_BADEOL, sp);
return PS_ERROR;
}
continue;
case PS_EOF:
return PS_NORMAL;
default:
MCperror->add(PE_IF_BADTYPE, sp);
return PS_ERROR;
}
if (newstatement->parse(sp) != PS_NORMAL)
{
MCperror->add(PE_IF_BADSTATEMENT, sp);
delete newstatement;
return PS_ERROR;
}
switch (state)
{
case IS_THEN:
if (thenstatements == NULL)
thenstatements = curstatement = newstatement;
else
{
curstatement->setnext(newstatement);
curstatement = newstatement;
}
switch (format)
{
case IF_UNDEFINED:
format = IF_ONELINE;
needstatement = False;
break;
case IF_SINGLE:
needstatement = False;
break;
case IF_MULTIPLE:
break;
default: // may be unreachable
return PS_ERROR;
}
break;
case IS_ELSE:
if (elsestatements == NULL)
elsestatements = curstatement = newstatement;
else
{
curstatement->setnext(newstatement);
curstatement = newstatement;
}
if (format != IF_ELSEMULTIPLE)
return PS_NORMAL;
break;
case IS_UNDEFINED:
MCperror->add(PE_IF_NOTHEN, sp);
delete newstatement;
return PS_ERROR;
}
}
return PS_NORMAL;
}
Parse_stat MCTry::parse(MCScriptPoint &sp)
{
initpoint(sp);
Try_state state = TS_TRY;
if (sp.skip_eol() != PS_NORMAL)
{
MCperror->add
(PE_TRY_WANTEDENDTRY, sp);
return PS_ERROR;
}
MCStatement *curstatement = NULL;
MCStatement *newstatement = NULL;
while (True)
{
Symbol_type type;
const LT *te;
switch (sp.next(type))
{
case PS_NORMAL:
if (type == ST_DATA)
newstatement = new MCEcho;
else if (sp.lookup(SP_COMMAND, te) != PS_NORMAL)
{
if (type == ST_ID)
newstatement = new MCComref(sp.gettoken_nameref());
else
{
MCperror->add
(PE_TRY_NOTCOMMAND, sp);
return PS_ERROR;
}
}
else
{
Parse_stat stat;
MCExpression *newfact = NULL;
switch (te->type)
{
case TT_STATEMENT:
newstatement = MCN_new_statement(te->which);
break;
case TT_CATCH:
state = TS_CATCH;
curstatement = NULL;
stat = sp.next(type);
if (errorvar != NULL || stat != PS_NORMAL || type != ST_ID
|| sp.lookup(SP_FACTOR, te) != PS_NO_MATCH
|| sp.lookupconstant(&newfact) == PS_NORMAL
|| sp . findnewvar(sp.gettoken_nameref(), kMCEmptyName, &errorvar) != PS_NORMAL)
{
delete newfact;
MCperror->add(PE_LOCAL_BADNAME, sp);
return PS_ERROR;
}
continue;
break;
case TT_FINALLY:
state = TS_FINALLY;
curstatement = NULL;
continue;
break;
case TT_END:
if (sp.skip_token(SP_COMMAND, TT_STATEMENT, S_TRY) != PS_NORMAL)
{
MCperror->add
(PE_TRY_WANTEDENDTRY, sp);
return PS_ERROR;
}
return PS_NORMAL;
default: /* token type */
MCperror->add
(PE_TRY_BADSTATEMENT, sp);
return PS_ERROR;
}
}
break;
case PS_EOL:
if (sp.skip_eol() != PS_NORMAL)
{
MCperror->add
(PE_TRY_WANTEDENDTRY, sp);
return PS_ERROR;
}
continue;
case PS_EOF:
return PS_NORMAL;
default:
MCperror->add
(PE_TRY_BADTYPE, sp);
return PS_ERROR;
}
if (newstatement->parse(sp) != PS_NORMAL)
{
MCperror->add
(PE_TRY_BADSTATEMENT, sp);
delete newstatement;
return PS_ERROR;
}
if (curstatement != NULL)
{
curstatement->setnext(newstatement);
curstatement = newstatement;
}
else
switch (state)
{
case TS_TRY:
trystatements = curstatement = newstatement;
break;
case TS_CATCH:
catchstatements = curstatement = newstatement;
break;
case TS_FINALLY:
finallystatements = curstatement = newstatement;
break;
}
}
return PS_NORMAL;
}
Parse_stat MCSwitch::parse(MCScriptPoint &sp)
{
Symbol_type type;
const LT *te;
initpoint(sp);
if (sp.next(type) == PS_NORMAL)
{
sp.backup();
if (sp.parseexp(False, True, &cond) != PS_NORMAL)
{
MCperror->add
(PE_SWITCH_BADCONDITION, sp);
return PS_ERROR;
}
}
else
if (sp.skip_eol() != PS_NORMAL)
{
MCperror->add
(PE_SWITCH_WANTEDENDSWITCH, sp);
return PS_ERROR;
}
uint2 snum = 0;
MCStatement *curstatement = NULL;
MCStatement *newstatement = NULL;
while (True)
{
switch (sp.next(type))
{
case PS_NORMAL:
if (type == ST_DATA)
newstatement = new MCEcho;
else if (sp.lookup(SP_COMMAND, te) != PS_NORMAL)
{
if (type == ST_ID)
newstatement = new MCComref(sp.gettoken_nameref());
else
{
MCperror->add
(PE_SWITCH_NOTCOMMAND, sp);
return PS_ERROR;
}
}
else
{
switch (te->type)
{
case TT_STATEMENT:
newstatement = MCN_new_statement(te->which);
break;
case TT_CASE:
MCU_realloc((char **)&cases, ncases, ncases + 1,
sizeof(MCExpression *));
if (sp.parseexp(False, True, &cases[ncases]) != PS_NORMAL)
{
MCperror->add
(PE_SWITCH_BADCASECONDITION, sp);
return PS_ERROR;
}
MCU_realloc((char **)&caseoffsets, ncases, ncases + 1,
sizeof(uint2));
caseoffsets[ncases++] = snum;
continue;
case TT_DEFAULT:
defaultcase = snum;
continue;
case TT_END:
if (sp.skip_token(SP_COMMAND, TT_STATEMENT, S_SWITCH) != PS_NORMAL)
{
MCperror->add
(PE_SWITCH_WANTEDENDSWITCH, sp);
return PS_ERROR;
}
return PS_NORMAL;
default: /* token type */
MCperror->add
(PE_SWITCH_BADCASECONDITION, sp);
return PS_ERROR;
}
}
break;
case PS_EOL:
if (sp.skip_eol() != PS_NORMAL)
{
MCperror->add
(PE_SWITCH_WANTEDENDSWITCH, sp);
return PS_ERROR;
}
continue;
case PS_EOF:
return PS_NORMAL;
default:
MCperror->add
(PE_SWITCH_BADTYPE, sp);
return PS_ERROR;
}
if (newstatement->parse(sp) != PS_NORMAL)
{
MCperror->add
(PE_SWITCH_BADSTATEMENT, sp);
delete newstatement;
return PS_ERROR;
}
if (statements == NULL)
statements = curstatement = newstatement;
else
{
curstatement->setnext(newstatement);
curstatement = newstatement;
}
snum++;
}
return PS_NORMAL;
}
// put [ unicode | binary ] <expr>
// put [ unicode ] ( content | markup ) <expr>
// put [ new ] header <expr>
// put [ secure ] [ httponly ] cookie <name> [ for <path> ] [ on <domain> ] to <value> [ until <expiry> ]
// put <expr> ( into | after | before ) message [ box ]
// put <expr> ( into | after | before ) <chunk>
//
Parse_stat MCPut::parse(MCScriptPoint &sp)
{
Symbol_type type;
const LT *te;
initpoint(sp);
// IM-2011-08-22: [[ SERVER ]] Add support for new put variant.
// Parse: put [ secure ] [ httponly ] cookie <name> [ for path ] [ on domain ] with <value> [ until expires ]
if (sp . skip_token(SP_SERVER, TT_SERVER, SK_SECURE) == PS_NORMAL)
is_secure = true;
if (sp . skip_token(SP_SERVER, TT_SERVER, SK_HTTPONLY) == PS_NORMAL)
is_httponly = true;
if (sp . skip_token(SP_SERVER, TT_PREP, PT_COOKIE) == PS_NORMAL)
{
prep = PT_COOKIE;
if (sp . parseexp(True, False, &name) != PS_NORMAL)
{
MCperror->add(PE_PUT_BADEXP, sp);
return PS_ERROR;
}
if (sp . skip_token(SP_REPEAT, TT_UNDEFINED, RF_FOR) == PS_NORMAL)
{
if (sp . parseexp(True, False, &path) != PS_NORMAL)
{
MCperror->add(PE_PUT_BADEXP, sp);
return PS_ERROR;
}
}
if (sp . skip_token(SP_FACTOR, TT_OF, PT_ON) == PS_NORMAL)
{
if (sp . parseexp(True, False, &domain) != PS_NORMAL)
{
MCperror->add(PE_PUT_BADEXP, sp);
return PS_ERROR;
}
}
sp . skip_token(SP_REPEAT, TT_UNDEFINED, RF_WITH);
if (sp . parseexp(True, False, &source) != PS_NORMAL)
{
MCperror->add(PE_PUT_BADEXP, sp);
return PS_ERROR;
}
if (sp . skip_token(SP_REPEAT, TT_UNDEFINED, RF_UNTIL) == PS_NORMAL)
{
if (sp . parseexp(True, False, &expires) != PS_NORMAL)
{
MCperror->add(PE_PUT_BADEXP, sp);
return PS_ERROR;
}
}
return PS_NORMAL;
}
if (is_secure || is_httponly)
{
MCperror->add(PE_PUT_BADPREP, sp);
return PS_ERROR;
}
// MW-2011-06-22: [[ SERVER ]] Add support for new put variant.
// Parse: put new header <expr>
if (sp.skip_token(SP_SERVER, TT_SERVER, SK_NEW) == PS_NORMAL)
{
if (sp.skip_token(SP_SERVER, TT_PREP, PT_HEADER) == PS_NORMAL)
{
prep = PT_NEW_HEADER;
if (sp . parseexp(False, True, &source) != PS_NORMAL)
{
MCperror->add(PE_PUT_BADEXP, sp);
return PS_ERROR;
}
return PS_NORMAL;
}
else
sp.backup();
}
// MW-2012-02-23: [[ UnicodePut ]] Store whether 'unicode' was present
// in the ast.
if (sp . skip_token(SP_SERVER, TT_SERVER, SK_UNICODE) == PS_NORMAL)
is_unicode = true;
// MW-2011-06-22: [[ SERVER ]] Add support for new put variant.
// Parse: put [ unicode ] ( header | content | markup ) <expr>
if (sp.next(type) == PS_NORMAL)
{
if (sp.lookup(SP_SERVER, te) == PS_NORMAL && te -> type == TT_PREP)
{
prep = (Preposition_type)te -> which;
if (is_unicode && (prep == PT_HEADER || prep == PT_BINARY))
{
MCperror->add(PE_PUT_BADPREP, sp);
return PS_ERROR;
}
if (sp . parseexp(False, True, &source) != PS_NORMAL)
{
MCperror->add(PE_PUT_BADEXP, sp);
return PS_ERROR;
}
return PS_NORMAL;
}
else
sp.backup();
}
if (sp.parseexp(False, True, &source) != PS_NORMAL)
{
MCperror->add(PE_PUT_BADEXP, sp);
return PS_ERROR;
}
if (sp.next(type) != PS_NORMAL)
return PS_NORMAL;
if (sp.lookup(SP_FACTOR, te) != PS_NORMAL || te->type != TT_PREP)
{
sp.backup();
return PS_NORMAL;
}
prep = (Preposition_type)te->which;
if (prep != PT_BEFORE && prep != PT_INTO && prep != PT_AFTER)
{
MCperror->add(PE_PUT_BADPREP, sp);
return PS_ERROR;
}
if (sp.skip_token(SP_SHOW, TT_UNDEFINED, SO_MESSAGE) == PS_NORMAL)
{
sp.skip_token(SP_SHOW, TT_UNDEFINED, SO_MESSAGE); // "box"
return PS_NORMAL;
}
dest = new MCChunk(True);
if (dest->parse(sp, False) != PS_NORMAL)
{
MCperror->add(PE_PUT_BADCHUNK, sp);
return PS_ERROR;
}
MCVarref *t_src_ref, *t_dst_ref;
t_src_ref = source -> getrootvarref();
t_dst_ref = dest -> getrootvarref();
overlap = t_src_ref != NULL && t_dst_ref != NULL && t_src_ref -> rootmatches(t_dst_ref);
return PS_NORMAL;
}
Parse_stat MCStatement::getmods(MCScriptPoint &sp, uint2 &mstate)
{
Symbol_type type;
const LT *te;
while (True)
{
if (sp.next(type) != PS_NORMAL)
{
MCperror->add
(PE_STATEMENT_NOKEY, sp);
return PS_ERROR;
}
if (sp.lookup(SP_FACTOR, te) != PS_NORMAL || te->type != TT_FUNCTION)
{
MCperror->add
(PE_STATEMENT_BADKEY, sp);
return PS_ERROR;
}
switch (te->which)
{
case F_COMMAND_KEY:
mstate |= MS_CONTROL;
break;
case F_CONTROL_KEY:
mstate |= MS_MAC_CONTROL;
break;
case F_OPTION_KEY:
mstate |= MS_MOD1;
break;
case F_SHIFT_KEY:
mstate |= MS_SHIFT;
break;
default:
MCperror->add
(PE_STATEMENT_BADKEY, sp);
return PS_ERROR;
}
if (sp.skip_token(SP_COMMAND, TT_ELSE, S_UNDEFINED) == PS_NORMAL)
{
sp.backup();
return PS_NORMAL;
}
switch (sp.next(type))
{
case PS_NORMAL:
break;
case PS_EOL:
case PS_EOF:
return PS_NORMAL;
default:
MCperror->add
(PE_STATEMENT_BADSEP, sp);
return PS_ERROR;
}
if (type != ST_SEP)
{
MCperror->add
(PE_STATEMENT_BADSEP, sp);
return PS_ERROR;
}
}
return PS_NORMAL;
}