parser3/src/classes/op.C - diff

Return to op.C CVS log

Up to [parser3project] / parser3 / src / classes

Diff for /parser3/src/classes/op.C between versions 1.22 and 1.34

version 1.22, 2001/05/21 16:01:10	version 1.34, 2001/07/07 16:38:01
Line 4	Line 4
Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)	Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)

Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)	Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)

$Id$
*/	*/
	static const char *RCSId="$Id$";

#include "classes.h"	#include "classes.h"
#include "pa_config_includes.h"	#include "pa_config_includes.h"
Line 26	Line 25
#define MAIN_SQL_NAME "SQL"	#define MAIN_SQL_NAME "SQL"
#define MAIN_SQL_DRIVERS_NAME "drivers"	#define MAIN_SQL_DRIVERS_NAME "drivers"

	#define SWITCH_DATA_NAME "SWITCH-DATA"
	#define DEFAULT_VALUE "DEFAULT"

// local variable	// local variable

static Methoded *OP;	static Methoded *OP;
Line 52 static void _if(Request& r, const String	Line 54 static void _if(Request& r, const String
0/no name/,	0/no name/,
false/don't intercept string/).as_bool();	false/don't intercept string/).as_bool();
if(condition)	if(condition)
r.write_pass_lang(r.process(params->get(1)));	r.write_pass_lang(r.process(params->as_junction(1, "'then' parameter must be code")));
else if(params->size()==3)	else if(params->size()==3)
r.write_pass_lang(r.process(params->get(2)));	r.write_pass_lang(r.process(params->as_junction(2, "'else' parameter must be code")));
}	}

static void _untaint(Request& r, const String& method_name, MethodParams *params) {	static void _untaint(Request& r, const String& method_name, MethodParams *params) {
Line 69 static void _untaint(Request& r, const S	Line 71 static void _untaint(Request& r, const S
"invalid untaint language");	"invalid untaint language");

{	{
Value& vbody=params->get_junction(1, "body must be code");	Value& vbody=params->as_junction(1, "body must be code");

Temp_lang temp_lang(r, lang); // set temporarily specified ^untaint[language;	Temp_lang temp_lang(r, lang); // set temporarily specified ^untaint[language;
r.write_pass_lang(r.process(vbody)); // process marking tainted with that lang	r.write_pass_lang(r.process(vbody)); // process marking tainted with that lang
Line 94 static void _taint(Request& r, const Str	Line 96 static void _taint(Request& r, const Str
}	}

{	{
Value& vbody=params->get_no_junction(params->size()-1, "body must not be code");	Value& vbody=params->as_no_junction(params->size()-1, "body must not be code");

String result(r.pool());	String result(r.pool());
result.append(	result.append(
Line 141 static void _process(Request& r, const S	Line 143 static void _process(Request& r, const S
}	}

static void _rem(Request& r, const String&, MethodParams *params) {	static void _rem(Request& r, const String&, MethodParams *params) {
params->get_junction(0, "body must be code");	params->as_junction(0, "body must be code");
}	}

static void _while(Request& r, const String& method_name, MethodParams *params) {	static void _while(Request& r, const String& method_name, MethodParams *params) {
Pool& pool=r.pool();	Pool& pool=r.pool();

Value& vcondition=params->get_junction(0, "condition must be expression");	Value& vcondition=params->as_junction(0, "condition must be expression");
Value& body=params->get_junction(1, "body must be code");	Value& body=params->as_junction(1, "body must be code");

// while...	// while...
int endless_loop_count=0;	int endless_loop_count=0;
Line 172 static void _while(Request& r, const Str	Line 174 static void _while(Request& r, const Str
}	}

static void _use(Request& r, const String& method_name, MethodParams *params) {	static void _use(Request& r, const String& method_name, MethodParams *params) {
Value& vfile=params->get_no_junction(0, "file name must not be code");	Value& vfile=params->as_no_junction(0, "file name must not be code");
r.use_file(r.absolute(vfile.as_string()));	r.use_file(r.absolute(vfile.as_string()));
}	}

Line 181 static void _for(Request& r, const Strin	Line 183 static void _for(Request& r, const Strin
const String& var_name=r.process(params->get(0)).as_string();	const String& var_name=r.process(params->get(0)).as_string();
int from=r.process(params->get(1)).as_int();	int from=r.process(params->get(1)).as_int();
int to=r.process(params->get(2)).as_int();	int to=r.process(params->get(2)).as_int();
Value& body_code=params->get_junction(3, "body must be code");	Value& body_code=params->as_junction(3, "body must be code");
Value *delim_code=params->size()==3+1+1?&params->get(3+1):0;	Value *delim_code=params->size()==3+1+1?&params->get(3+1):0;

bool need_delim=false;	bool need_delim=false;
Line 207 static void _for(Request& r, const Strin	Line 209 static void _for(Request& r, const Strin
}	}

static void _eval(Request& r, const String& method_name, MethodParams *params) {	static void _eval(Request& r, const String& method_name, MethodParams *params) {
Value& expr=params->get_junction(0, "need expression");	Value& expr=params->as_junction(0, "need expression");
// evaluate expresion	// evaluate expresion
Value *result=r.process(expr,	Value *result=r.process(expr,
0/no name YET/,	0/no name YET/,
true/don't intercept string/).as_expr_result();	true/don't intercept string/).as_expr_result();
if(params->size()==2) {	if(params->size()==2) {
Value& fmt=params->get_no_junction(1, "fmt must not be code");	Value& fmt=params->as_no_junction(1, "fmt must not be code");

Pool& pool=r.pool();	Pool& pool=r.pool();
String& string=*new(pool) String(pool);	String& string=*new(pool) String(pool);
Line 225 static void _eval(Request& r, const Stri	Line 227 static void _eval(Request& r, const Stri
}	}


typedef double (*math_one_double_op_func_ptr)(double);
static double round(double op) { return floor(op+0.5); }
static double sign(double op) { return op > 0 ? 1 : ( op < 0 ? -1 : 0 ); }

static void double_one_op(Request& r,
const String& method_name, MethodParams *params,
math_one_double_op_func_ptr func) {
Pool& pool=r.pool();
Value& param=params->get_junction(0, "parameter must be expression");

Value& result=new(pool) VDouble(pool, (func)(r.process(param).as_double()));
result.set_name(method_name);
r.write_no_lang(result);
}

static void _round(Request& r, const String& method_name, MethodParams *params) {
double_one_op(r, method_name, params, &round);
}

static void _floor(Request& r, const String& method_name, MethodParams *params) {
double_one_op(r, method_name, params, &floor);
}

static void _ceiling(Request& r, const String& method_name, MethodParams *params) {
double_one_op(r, method_name, params, &ceil);
}

static void _abs(Request& r, const String& method_name, MethodParams *params) {
double_one_op(r, method_name, params, &fabs);
}

static void _sign(Request& r, const String& method_name, MethodParams *params) {
double_one_op(r, method_name, params, &sign);
}

static void _connect(Request& r, const String&, MethodParams *params) {	static void _connect(Request& r, const String&, MethodParams *params) {
Pool& pool=r.pool();	Pool& pool=r.pool();

Value& url=params->get_no_junction(0, "url must not be code");	Value& url=params->as_no_junction(0, "url must not be code");
Value& body_code=params->get_junction(1, "body must be code");	Value& body_code=params->as_junction(1, "body must be code");

Table *protocol2driver_and_client=	Table *protocol2driver_and_client=
static_cast<Table *>(r.classes_conf.get(OP->name()));	static_cast<Table *>(r.classes_conf.get(OP->name()));
Line 309 static void _connect(Request& r, const S	Line 276 static void _connect(Request& r, const S
rethrow_me.comment());	rethrow_me.comment());
}	}

static void _sql(Request& r, const String& method_name, MethodParams *params) {	static String *switch_data_name;
Pool& pool=r.pool();	static String *default_value;

if(!r.connection)	struct Switch_data {
PTHROW(0, 0,	Value *searching;
&method_name,	Value *found;
"without connect");	Value *_default;
	};

Value& statement=params->get_junction(0, "statement must be code");	static void _switch(Request& r, const String&, MethodParams *params) {
	void backup=r.classes_conf.get(switch_data_name);
	Switch_data data={&r.process(params->get(0))};
	r.classes_conf.put(*switch_data_name, &data);

Temp_lang temp_lang(r, String::UL_SQL);	r.process(params->as_junction(1, "switch cases must be code")); // and ignore result
const String& statement_string=r.process(statement).as_string();
const char *statement_cstr=
statement_string.cstr(String::UL_UNSPECIFIED, r.connection);
unsigned int sql_column_count; SQL_Driver::Cell *sql_columns;
unsigned long sql_row_count; SQL_Driver::Cell **sql_rows;
bool need_rethrow=false; Exception rethrow_me;
PTRY {
r.connection->query(
statement_cstr, 0, 0,
&sql_column_count, &sql_columns,
&sql_row_count, &sql_rows);
}
PCATCH(e) { // connect/process problem
rethrow_me=e; need_rethrow=true;
}
PEND_CATCH
if(need_rethrow)
PTHROW(rethrow_me.type(), rethrow_me.code(),
&statement_string, // setting more specific source [were url]
rethrow_me.comment());

// there are some result rows, which is wrong	r.classes_conf.put(*switch_data_name, backup);
if(sql_row_count)
PTHROW(0, 0,	if(Value *code=data.found ? data.found : data._default)
&statement_string,	r.write_pass_lang(r.process(*code));
"must not return result");	}

	static void _case(Request& r, const String&, MethodParams *params) {
	Switch_data& data=static_cast<Switch_data >(r.classes_conf.get(*switch_data_name));

	int count=params->size();
	Value *code=&params->as_junction(--count, "case result must be code");
	for(int i=0; i<count; i++) {
	Value& value=r.process(params->get(i));

	if(value.as_string() == *default_value) {
	data._default=code;
	break;
	}

	bool matches;
	if(data.searching->is_string())
	matches=data.searching->as_string() == value.as_string();
	else
	matches=data.searching->as_double() == value.as_double();

	if(matches) {
	data.found=code;
	break;
	}
	}
}	}

// constructor	// constructor
Line 356 MOP::MOP(Pool& apool) : Methoded(apool),	Line 332 MOP::MOP(Pool& apool) : Methoded(apool),
{	{
set_name(*NEW String(pool(), OP_CLASS_NAME));	set_name(*NEW String(pool(), OP_CLASS_NAME));

	switch_data_name=NEW String(pool(), SWITCH_DATA_NAME);
	default_value=NEW String(pool(), DEFAULT_VALUE);

// ^if(condition){code-when-true}	// ^if(condition){code-when-true}
// ^if(condition){code-when-true}{code-when-false}	// ^if(condition){code-when-true}{code-when-false}
add_native_method("if", Method::CT_ANY, _if, 2, 3);	add_native_method("if", Method::CT_ANY, _if, 2, 3);
Line 370 MOP::MOP(Pool& apool) : Methoded(apool),	Line 349 MOP::MOP(Pool& apool) : Methoded(apool),
add_native_method("process", Method::CT_ANY, _process, 1, 1);	add_native_method("process", Method::CT_ANY, _process, 1, 1);

// ^rem{code}	// ^rem{code}
add_native_method("rem", Method::CT_ANY, _rem, 1, 1);	add_native_method("rem", Method::CT_ANY, _rem, 1, 1000);

// ^while(condition){code}	// ^while(condition){code}
add_native_method("while", Method::CT_ANY, _while, 2, 2);	add_native_method("while", Method::CT_ANY, _while, 2, 2);
Line 386 MOP::MOP(Pool& apool) : Methoded(apool),	Line 365 MOP::MOP(Pool& apool) : Methoded(apool),
add_native_method("eval", Method::CT_ANY, _eval, 1, 2);	add_native_method("eval", Method::CT_ANY, _eval, 1, 2);


// math functions

// ^round(expr)
add_native_method("round", Method::CT_ANY, _round, 1, 1);

// ^floor(expr)
add_native_method("floor", Method::CT_ANY, _floor, 1, 1);

// ^ceiling(expr)
add_native_method("ceiling", Method::CT_ANY, _ceiling, 1, 1);

// ^abs(expr)
add_native_method("abs", Method::CT_ANY, _abs, 1, 1);

// ^sign(expr)
add_native_method("sign", Method::CT_ANY, _sign, 1, 1);


// connect

// ^connect[protocol://user:pass@host[:port]/database]{code with ^sql-s}	// ^connect[protocol://user:pass@host[:port]/database]{code with ^sql-s}
add_native_method("connect", Method::CT_ANY, _connect, 2, 2);	add_native_method("connect", Method::CT_ANY, _connect, 2, 2);

// ^sql[query]	// switch
add_native_method("sql", Method::CT_ANY, _sql, 1, 1);
	// ^switch[value]{cases}
	add_native_method("switch", Method::CT_ANY, _switch, 2, 2);

	// ^case[value]{code}
	add_native_method("case", Method::CT_ANY, _case, 2, 1000);
}	}

// constructor & configurator	// constructor & configurator

E-mail:

Removed from v.1.22
changed lines
	Added in v.1.34