parser3/src/classes/table.C - diff

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Diff for /parser3/src/classes/table.C between versions 1.133.2.2 and 1.161

version 1.133.2.2, 2001/12/04 17:36:25	version 1.161, 2002/09/17 08:44:45
Line 1	Line 1
/** @file	/** @file
Parser: @b table parser class.	Parser: @b table parser class.

Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)	Copyright (c) 2001, 2002 ArtLebedev Group (http://www.artlebedev.com)
Author: Alexander Petrosyan <paf@design.ru> (http://paf.design.ru)	Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)

$Id$
*/	*/

	static const char* IDENT_TABLE_C="$Date$";

#include "classes.h"	#include "classes.h"
#include "pa_config_includes.h"
#include "pa_common.h"	#include "pa_common.h"
#include "pa_request.h"	#include "pa_request.h"
#include "pa_vtable.h"	#include "pa_vtable.h"
Line 16	Line 15
#include "pa_sql_connection.h"	#include "pa_sql_connection.h"
#include "pa_vbool.h"	#include "pa_vbool.h"

// defines

#define TABLE_CLASS_NAME "table"

// class	// class

class MTable : public Methoded {	class MTable : public Methoded {
Line 35 public: // Methoded	Line 30 public: // Methoded

// methods	// methods

static void _set(Request& r, const String& method_name, MethodParams *params) {	static void get_copy_options(Request& r, const String& method_name, MethodParams *params, int param_index,
Pool& pool=r.pool();	const Table& source,
	int& offset,
	int& limit) {
	offset=0;
	limit=0;
	if(params->size()<=param_index)
	return;

	Value& voptions=params->as_no_junction(param_index, "options must be hash, not code");
	if(!voptions.is_string()) {
	if(Hash *options=voptions.get_hash(&method_name)) {
	if(Value voffset=(Value )options->get(*sql_offset_name))
	if(voffset->is_string()) {
	const String& soffset=*voffset->get_string();
	if(soffset == "cur")
	offset=source.current();
	else
	throw Exception("parser.runtime",
	&soffset,
	"must be 'cur' string or expression");
	} else
	offset=r.process_to_value(*voffset).as_int();
	if(Value vlimit=(Value )options->get(*sql_limit_name))
	limit=r.process_to_value(*vlimit).as_int();
	} else
	throw Exception("parser.runtime",
	&method_name,
	"options must be hash");
	}
	if(!limit) // zero limit = sould be 'nothing to copy', for methods zero means 'all'
	limit=-1; // thus fixing
	}

	static void _create(Request& r, const String& method_name, MethodParams *params) {
	Pool& pool=r.pool();
	// clone/copy part?
	if(const Table *source=params->get(0).get_table()) {
	int offset, limit;
	get_copy_options(r, method_name, params, 1, *source,
	offset, limit);
	static_cast<VTable >(r.self)->set_table(new(pool) Table(pool, *source, offset, limit));
	return;
	}

// data is last parameter	// data is last parameter
Temp_lang temp_lang(r, String::UL_PASS_APPENDED);	Temp_lang temp_lang(r, String::UL_PASS_APPENDED);
const String& data=	const String& data=
r.process(params->as_junction(params->size()-1, "body must be code")).as_string();	r.process_to_string(params->as_junction(params->size()-1, "body must be code"));

size_t pos_after=0;	size_t pos_after=0;
// parse columns	// parse columns
Line 51 static void _set(Request& r, const Strin	Line 89 static void _set(Request& r, const Strin
columns=new(pool) Array(pool);	columns=new(pool) Array(pool);

Array head(pool);	Array head(pool);
data.split(head, &pos_after, "\n", 1, String::UL_CLEAN, 1);	data.split(head, &pos_after, "\n", 1, String::UL_AS_IS, 1);
if(head.size())	if(head.size())
head.get_string(0)->split(*columns, 0, "\t", 1, String::UL_CLEAN);	head.get_string(0)->split(*columns, 0, "\t", 1, String::UL_AS_IS);
}	}

Table& table=*new(pool) Table(pool, &method_name, columns);	Table& table=*new(pool) Table(pool, &method_name, columns);
// parse cells	// parse cells
Array rows(pool);	Array rows(pool);
data.split(rows, &pos_after, "\n", 1, String::UL_CLEAN);	data.split(rows, &pos_after, "\n", 1, String::UL_AS_IS);
Array_iter i(rows);	Array_iter i(rows);
while(i.has_next()) {	while(i.has_next()) {
Array& row=*new(pool) Array(pool);	Array& row=*new(pool) Array(pool);
Line 68 static void _set(Request& r, const Strin	Line 106 static void _set(Request& r, const Strin
if(!string.size())	if(!string.size())
continue;	continue;

string.split(row, 0, "\t", 1, String::UL_CLEAN);	string.split(row, 0, "\t", 1, String::UL_AS_IS);
table+=&row;	table+=&row;
}	}

Line 93 static void _load(Request& r, const Stri	Line 131 static void _load(Request& r, const Stri
uint line=origin.line;	uint line=origin.line;
#endif	#endif
if(params->size()==2) {	if(params->size()==2) {
columns=0;	columns=0; // nameless
} else {	} else {
columns=new(pool) Array(pool);	columns=new(pool) Array(pool);

if(char *row_chars=getrow(&data))	while(char *row_chars=getrow(&data)) {
	// remove empty&comment lines
	if(!row_chars \|\| row_chars == '#')
	continue;
do {	do {
String *name=new(pool) String(pool);	String *name=new(pool) String(pool);
name->APPEND_TAINTED(lsplit(&row_chars, '\t'), 0, file, line++);	name->APPEND_TAINTED(lsplit(&row_chars, '\t'), 0, file, line++);
*columns+=name;	*columns+=name;
} while(row_chars);	} while(row_chars);

	break;
	}
}	}

// parse cells	// parse cells
Line 128 static void _load(Request& r, const Stri	Line 172 static void _load(Request& r, const Stri
static_cast<VTable *>(r.self)->set_table(table);	static_cast<VTable *>(r.self)->set_table(table);
}	}

/// @todo "z\nz" "zzz""zz"	/// @todo "x\nx" "xxx""xx"
static void _save(Request& r, const String& method_name, MethodParams *params) {	static void _save(Request& r, const String& method_name, MethodParams *params) {
Pool& pool=r.pool();	Pool& pool=r.pool();
Value& vfile_name=params->as_no_junction(params->size()-1,	Value& vfile_name=params->as_no_junction(params->size()-1,
"file name must not be code");	"file name must not be code");

Table& table=static_cast<VTable *>(r.self)->table();	Table& table=static_cast<VTable *>(r.self)->table(&method_name);

bool do_append=false;	bool do_append=false;
String sdata(pool);	String sdata(pool);
Line 166 static void _save(Request& r, const Stri	Line 210 static void _save(Request& r, const Stri
else if(mode=="nameless")	else if(mode=="nameless")
/ok, already skipped names output/;	/ok, already skipped names output/;
else	else
throw Exception(0, 0,	throw Exception("parser.runtime",
&mode,	&mode,
"unknown mode, must be 'append'");	"unknown mode, must be 'append'");

Line 176 static void _save(Request& r, const Stri	Line 220 static void _save(Request& r, const Stri
while(i.has_next()) {	while(i.has_next()) {
Array_iter c(static_cast<Array >(i.next()));	Array_iter c(static_cast<Array >(i.next()));
while(c.has_next()) {	while(c.has_next()) {
sdata.append(c.next_string(), //static_cast<String *>(row->quick_get(column)),	if(const String *s=c.next_string())
String::UL_TABLE);	sdata.append(*s,
	String::UL_TABLE);
if(c.has_next())	if(c.has_next())
sdata.APPEND_CONST("\t");	sdata.APPEND_CONST("\t");
}	}
Line 185 static void _save(Request& r, const Stri	Line 230 static void _save(Request& r, const Stri
}	}

// write	// write
file_write(pool, r.absolute(vfile_name.as_string()),	file_write(r.absolute(vfile_name.as_string()),
sdata.cstr(), sdata.size(), true, do_append);	sdata.cstr(), sdata.size(), true, do_append);
}	}

static void _count(Request& r, const String& method_name, MethodParams *) {	static void _count(Request& r, const String& method_name, MethodParams *) {
Pool& pool=r.pool();	Pool& pool=r.pool();
Value& value=new(pool) VInt(pool, static_cast<VTable >(r.self)->table().size());	int result=static_cast<VTable *>(r.self)->table(&method_name).size();
value.set_name(method_name);	r.write_no_lang(*new(pool) VInt(pool, result));
r.write_no_lang(value);
}	}

static void _line(Request& r, const String& method_name, MethodParams *) {	static void _line(Request& r, const String& method_name, MethodParams *) {
Pool& pool=r.pool();	Pool& pool=r.pool();
Value& value=new(pool) VInt(pool, 1+static_cast<VTable >(r.self)->table().current());	int result=1+static_cast<VTable *>(r.self)->table(&method_name).current();
value.set_name(method_name);	r.write_no_lang(*new(pool) VInt(pool, result));
r.write_no_lang(value);
}	}

static void _offset(Request& r, const String& method_name, MethodParams *params) {	static void _offset(Request& r, const String& method_name, MethodParams *params) {
Pool& pool=r.pool();	Pool& pool=r.pool();
Table& table=static_cast<VTable *>(r.self)->table();	Table& table=static_cast<VTable *>(r.self)->table(&method_name);
if(params->size()) {	if(params->size()) {
bool absolute=false;	bool absolute=false;
if(params->size()>1) {	if(params->size()>1) {
Line 215 static void _offset(Request& r, const St	Line 258 static void _offset(Request& r, const St
else if(whence=="set")	else if(whence=="set")
absolute=true;	absolute=true;
else	else
throw Exception(0, 0,	throw Exception("parser.runtime",
&whence,	&whence,
"is invalid whence, valid are 'cur' or 'set'");	"is invalid whence, valid are 'cur' or 'set'");
}	}

Value& offset_expr=params->as_junction(params->size()-1, "offset must be expression");	Value& offset_expr=params->as_junction(params->size()-1, "offset must be expression");
table.offset(absolute, r.process(offset_expr).as_int());	table.offset(absolute, r.process_to_value(offset_expr).as_int());
} else {	} else
Value& value=*new(pool) VInt(pool, table.current());	r.write_no_lang(*new(pool) VInt(pool, table.current()));
value.set_name(method_name);
r.write_no_lang(value);
}
}	}

static void _menu(Request& r, const String& method_name, MethodParams *params) {	static void _menu(Request& r, const String& method_name, MethodParams *params) {
Line 234 static void _menu(Request& r, const Stri	Line 274 static void _menu(Request& r, const Stri

Value *delim_maybe_code=params->size()>1?&params->get(1):0;	Value *delim_maybe_code=params->size()>1?&params->get(1):0;

VTable& vtable=static_cast<VTable >(r.self);	Table& table=static_cast<VTable *>(r.self)->table(&method_name);
Table& table=vtable.table();
bool need_delim=false;	bool need_delim=false;
int saved_current=table.current();	int saved_current=table.current();
int size=table.size();	int size=table.size();
for(int row=0; row<size; row++) {	for(int row=0; row<size; row++) {
table.set_current(row);	table.set_current(row);

Value& processed_body=r.process(body_code);	StringOrValue sv_processed=r.process(body_code);
if(delim_maybe_code) { // delimiter set?	const String *s_processed=sv_processed.get_string();
const String *string=processed_body.get_string();	if(delim_maybe_code && s_processed && s_processed->size()) { // delimiter set and we have body
if(need_delim && string && string->size()) // need delim & iteration produced string?	if(need_delim) // need delim & iteration produced string?
r.write_pass_lang(r.process(*delim_maybe_code));	r.write_pass_lang(r.process(*delim_maybe_code));
need_delim=true;	need_delim=true;
}	}
r.write_pass_lang(processed_body);	r.write_pass_lang(sv_processed);
}	}
table.set_current(saved_current);	table.set_current(saved_current);
}	}
Line 283 static void table_row_to_hash(Array::Ite	Line 322 static void table_row_to_hash(Array::Ite
}	}
static void _hash(Request& r, const String& method_name, MethodParams *params) {	static void _hash(Request& r, const String& method_name, MethodParams *params) {
Pool& pool=r.pool();	Pool& pool=r.pool();
Table& self_table=static_cast<VTable *>(r.self)->table();	Table& self_table=static_cast<VTable *>(r.self)->table(&method_name);
Value& result=*new(pool) VHash(pool);	Value& result=*new(pool) VHash(pool);
if(const Array *columns=self_table.columns())	if(const Array *columns=self_table.columns())
if(columns->size()>1) {	if(columns->size()>0) {
const String& key_field_name=params->as_no_junction(0,	const String& key_field_name=params->as_no_junction(0,
"key field name must not be code").as_string();	"key field name must not be code").as_string();
int key_field=self_table.column_name2index(key_field_name, true);	int key_field=self_table.column_name2index(key_field_name, true);
Line 303 static void _hash(Request& r, const Stri	Line 342 static void _hash(Request& r, const Stri
value_fields+=self_table.column_name2index(value_field_name, true);	value_fields+=self_table.column_name2index(value_field_name, true);
}	}
} else	} else
throw Exception(0, 0,	throw Exception("parser.runtime",
&method_name,	&method_name,
"value field(s) must be string or self_table"	"value field(s) must be string or self_table"
);	);
Line 316 static void _hash(Request& r, const Stri	Line 355 static void _hash(Request& r, const Stri
Row_info row_info={&self_table, key_field, &value_fields, result.get_hash(0)};	Row_info row_info={&self_table, key_field, &value_fields, result.get_hash(0)};
self_table.for_each(table_row_to_hash, &row_info);	self_table.for_each(table_row_to_hash, &row_info);
}	}
result.set_name(method_name);
r.write_no_lang(result);	r.write_no_lang(result);
}	}

Line 353 static void _sort(Request& r, const Stri	Line 391 static void _sort(Request& r, const Stri
reverse=params->as_no_junction(1, "order must not be code").as_string()=="desc":	reverse=params->as_no_junction(1, "order must not be code").as_string()=="desc":
false; // default=asc	false; // default=asc

Table& old_table=static_cast<VTable *>(r.self)->table();	Table& old_table=static_cast<VTable *>(r.self)->table(&method_name);
Table& new_table=*new(pool) Table(pool, &method_name, old_table.columns());	Table& new_table=*new(pool) Table(pool, &method_name, old_table.columns());

Table_seq_item seq=(Table_seq_item )pool.malloc(sizeof(Table_seq_item)*old_table.size());	Table_seq_item seq=(Table_seq_item )pool.malloc(sizeof(Table_seq_item)*old_table.size());
Line 367 static void _sort(Request& r, const Stri	Line 405 static void _sort(Request& r, const Stri
old_table.set_current(i);	old_table.set_current(i);
// calculate key value	// calculate key value
seq[i].row=(MethodParams *)old_table.get(i);	seq[i].row=(MethodParams *)old_table.get(i);
Value& value=r.process(key_maker).as_expr_result(true/return string as-is*/);	Value& value=r.process_to_value(key_maker).as_expr_result(true/return string as-is*/);
if(i==0) // determining key values type by first one	if(i==0) // determining key values type by first one
key_values_are_strings=value.is_string();	key_values_are_strings=value.is_string();

Line 390 static void _sort(Request& r, const Stri	Line 428 static void _sort(Request& r, const Stri
static_cast<VTable *>(r.self)->set_table(new_table);	static_cast<VTable *>(r.self)->set_table(new_table);
}	}

static void _locate(Request& r, const String& method_name, MethodParams *params) {	static bool _locate_expression(Request& r, const String& method_name, MethodParams *params) {
Pool& pool=r.pool();	if(params->size()>1)
	throw Exception("parser.runtime",
	&method_name,
	"locate by expression has only one parameter - expression");

	Value& expression_code=params->as_junction(0, "must be expression");

	Table& table=static_cast<VTable *>(r.self)->table(&method_name);
	int saved_current=table.current();
	int size=table.size();
	for(int row=0; row<size; row++) {
	table.set_current(row);

	if(r.process_to_value(expression_code).as_bool())
	return true;
	}
	table.set_current(saved_current);
	return false;
	}
	static bool _locate_name_value(Request& r, const String& method_name, MethodParams *params) {
	if(params->size()>2)
	throw Exception("parser.runtime",
	&method_name,
	"locate by name and value has only two parameters - name and value");

VTable& vtable=static_cast<VTable >(r.self);	Table& table=static_cast<VTable *>(r.self)->table(&method_name);
Table& table=vtable.table();	return table.locate(
Value& result=*new(pool) VBool(pool, table.locate(
params->as_string(0, "column name must be string"),	params->as_string(0, "column name must be string"),
params->as_string(1, "value must be string")	params->as_string(1, "value must be string")
));	);
result.set_name(method_name);	}
r.write_no_lang(result);	static void _locate(Request& r, const String& method_name, MethodParams *params) {
	Pool& pool=r.pool();
	bool result=params->get(0).get_junction()?
	_locate_expression(r, method_name, params) :
	_locate_name_value(r, method_name, params);
	r.write_no_lang(*new(pool) VBool(pool, result));
}	}

static void _flip(Request& r, const String& method_name, MethodParams *params) {	static void _flip(Request& r, const String& method_name, MethodParams *params) {
Pool& pool=r.pool();	Pool& pool=r.pool();
VTable& vtable=static_cast<VTable >(r.self);	Table& old_table=static_cast<VTable *>(r.self)->table(&method_name);

Table& old_table=*vtable.get_table();
Table& new_table=new(pool) Table(pool, &method_name, 0/nameless*/);	Table& new_table=new(pool) Table(pool, &method_name, 0/nameless*/);
if(old_table.size())	if(old_table.size())
if(int old_cols=old_table.at(0).size())	if(int old_cols=old_table.at(0).size())
Line 428 static void _append(Request& r, const St	Line 491 static void _append(Request& r, const St
// data	// data
Temp_lang temp_lang(r, String::UL_PASS_APPENDED);	Temp_lang temp_lang(r, String::UL_PASS_APPENDED);
const String& string=	const String& string=
r.process(params->as_junction(0, "body must be code")).as_string();	r.process_to_string(params->as_junction(0, "body must be code"));

// parse cells	// parse cells
Array& row=*new(pool) Array(pool);	Array& row=*new(pool) Array(pool);
string.split(row, 0, "\t", 1, String::UL_CLEAN);	string.split(row, 0, "\t", 1, String::UL_AS_IS);

VTable& vtable=static_cast<VTable >(r.self);	static_cast<VTable *>(r.self)->table(&method_name)+=&row;
vtable.table()+=&row;
}	}

static void _join(Request& r, const String& method_name, MethodParams *params) {	static void _join(Request& r, const String& method_name, MethodParams *params) {
Line 443 static void _join(Request& r, const Stri	Line 505 static void _join(Request& r, const Stri

Table *maybe_src=params->as_no_junction(0, "table ref must not be code").get_table();	Table *maybe_src=params->as_no_junction(0, "table ref must not be code").get_table();
if(!maybe_src)	if(!maybe_src)
throw Exception(0, 0,	throw Exception("parser.runtime",
&method_name,	&method_name,
"source is not a table");	"source is not a table");

Table& src=*maybe_src;	Table& src=*maybe_src;
Table& dest=static_cast<VTable *>(r.self)->table();	Table& dest=static_cast<VTable *>(r.self)->table(&method_name);
if(&src == &dest)	if(&src == &dest)
throw Exception(0, 0,	throw Exception("parser.runtime",
&method_name,	&method_name,
"source and destination are same table");	"source and destination are same table");

	int offset, limit;
	get_copy_options(r, method_name, params, 1, src,
	offset, limit);

if(const Array *dest_columns=dest.columns()) { // dest is named	if(const Array *dest_columns=dest.columns()) { // dest is named
int saved_src_current=src.current();	int saved_src_current=src.current();
for(int src_row=0; src_row<src.size(); src_row++) {	int m=src.size()-offset;
	if(!limit \|\| limit>m)
	limit=m;
	int end=offset+limit;
	for(int src_row=offset; src_row<end; src_row++) {
src.set_current(src_row);	src.set_current(src_row);
Array& dest_row=*new(pool) Array(pool);	Array& dest_row=*new(pool) Array(pool);
for(int dest_column=0; dest_column<dest_columns->size(); dest_column++)	for(int dest_column=0; dest_column<dest_columns->size(); dest_column++) {
dest_row+=src.item(*dest_columns->get_string(dest_column));	const String src_item=src.item(dest_columns->get_string(dest_column));
	dest_row+=src_item?src_item:new(pool) String(pool);
	}
dest+=&dest_row;	dest+=&dest_row;
}	}
src.set_current(saved_src_current);	src.set_current(saved_src_current);
Line 520 public:	Line 592 public:
static void _sql(Request& r, const String& method_name, MethodParams *params) {	static void _sql(Request& r, const String& method_name, MethodParams *params) {
Pool& pool=r.pool();	Pool& pool=r.pool();

if(!r.connection)
throw Exception(0, 0,
&method_name,
"without connect");

Value& statement=params->as_junction(0, "statement must be code");	Value& statement=params->as_junction(0, "statement must be code");

ulong limit=0;	ulong limit=0;
ulong offset=0;	ulong offset=0;
if(params->size()>1) {	if(params->size()>1) {
Value& voptions=params->as_no_junction(1, "options must be hash, not code");	Value& voptions=params->as_no_junction(1, "options must be hash, not code");
if(voptions.is_defined())	if(!voptions.is_string())
if(Hash *options=voptions.get_hash(&method_name)) {	if(Hash *options=voptions.get_hash(&method_name)) {
if(Value vlimit=(Value )options->get(*sql_limit_name))	if(Value vlimit=(Value )options->get(*sql_limit_name))
limit=(ulong)r.process(*vlimit).as_double();	limit=(ulong)r.process_to_value(*vlimit).as_double();
if(Value voffset=(Value )options->get(*sql_offset_name))	if(Value voffset=(Value )options->get(*sql_offset_name))
offset=(ulong)r.process(*voffset).as_double();	offset=(ulong)r.process_to_value(*voffset).as_double();
} else	} else
throw Exception(0, 0,	throw Exception("parser.runtime",
&method_name,	&method_name,
"options must be hash");	"options must be hash");
}	}

Temp_lang temp_lang(r, String::UL_SQL);	Temp_lang temp_lang(r, String::UL_SQL);
const String& statement_string=r.process(statement).as_string();	const String& statement_string=r.process_to_string(statement);
const char *statement_cstr=	const char *statement_cstr=
statement_string.cstr(String::UL_UNSPECIFIED, r.connection);	statement_string.cstr(String::UL_UNSPECIFIED, r.connection(&method_name));
Table_sql_event_handlers handlers(pool, method_name,	Table_sql_event_handlers handlers(pool, method_name,
statement_string, statement_cstr);	statement_string, statement_cstr);
try {	#ifdef RESOURCES_DEBUG
struct timeval mt[2];	struct timeval mt[2];
//measure:before	//measure:before
gettimeofday(&mt[0],NULL);	gettimeofday(&mt[0],NULL);
	#endif
	r.connection(&method_name)->query(
	statement_cstr, offset, limit,
	handlers,
	statement_string);

r.connection->query(	#ifdef RESOURCES_DEBUG
statement_cstr, offset, limit,	//measure:after connect
handlers);
//measure:after connect
gettimeofday(&mt[1],NULL);	gettimeofday(&mt[1],NULL);

double t[2];	double t[2];
Line 565 static void _sql(Request& r, const Strin	Line 635 static void _sql(Request& r, const Strin
t[i]=mt[i].tv_sec+mt[i].tv_usec/1000000.0;	t[i]=mt[i].tv_sec+mt[i].tv_usec/1000000.0;

r.sql_request_time+=t[1]-t[0];	r.sql_request_time+=t[1]-t[0];
	#endif
} catch(const Exception& e) { // query problem
// more specific source [were url]
throw Exception(e.type(), e.code(),
&statement_string,
"%s", e.comment());
}

Table *result=	Table *result=
handlers.table?handlers.table: // query resulted in table? return it	handlers.table?handlers.table: // query resulted in table? return it
Line 588 static void _columns(Request& r, const S	Line 652 static void _columns(Request& r, const S
result_columns+=new(pool) String(pool, "column");	result_columns+=new(pool) String(pool, "column");
Table& result_table=*new(pool) Table(pool, &method_name, &result_columns);	Table& result_table=*new(pool) Table(pool, &method_name, &result_columns);

Table& source_table=static_cast<VTable *>(r.self)->table();	Table& source_table=static_cast<VTable *>(r.self)->table(&method_name);
if(const Array *source_columns=source_table.columns()) {	if(const Array *source_columns=source_table.columns()) {
Array_iter i(*source_columns);	Array_iter i(*source_columns);
while(i.has_next()) {	while(i.has_next()) {
Line 598 static void _columns(Request& r, const S	Line 662 static void _columns(Request& r, const S
}	}
}	}

VTable& result=*new(pool) VTable(pool, &result_table);	r.write_no_lang(*new(pool) VTable(pool, &result_table));
result.set_name(method_name);
r.write_no_lang(result);
}	}

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

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

MTable::MTable(Pool& apool) : Methoded(apool) {	Table& source_table=static_cast<VTable *>(r.self)->table(&method_name);
set_name(*NEW String(pool(), TABLE_CLASS_NAME));	Table& result_table=*new(pool) Table(pool,
	source_table.origin_string(),
	source_table.columns()
	);

// ^table:set{data}	int saved_current=source_table.current();
// ^table:set[nameless]{data}	int size=source_table.size();
add_native_method("set", Method::CT_DYNAMIC, _set, 1, 2);	for(int row=0; row<size; row++) {
	source_table.set_current(row);

	bool condition=r.process_to_value(vcondition,
	/0/no name* /,*/
	false/don't intercept string/).as_bool();

	if(condition) // ...condition is true=
	result_table+=&source_table.at(row); // =green light to go to result
	}
	source_table.set_current(saved_current);

// ^table:load[file]	r.write_no_lang(*new(pool) VTable(pool, &result_table));
// ^table:load[nameless;file]	}

	// constructor

	MTable::MTable(Pool& apool) : Methoded(apool, "table") {
	// ^table::create{data}
	// ^table::create[nameless]{data}
	// ^table::create[table]
	add_native_method("create", Method::CT_DYNAMIC, _create, 1, 2);
	// old name for compatibility with <= v 1.141 2002/01/25 11:33:45 paf
	add_native_method("set", Method::CT_DYNAMIC, _create, 1, 2);

	// ^table::load[file]
	// ^table::load[nameless;file]
add_native_method("load", Method::CT_DYNAMIC, _load, 1, 2);	add_native_method("load", Method::CT_DYNAMIC, _load, 1, 2);

// ^table.save[file]	// ^table.save[file]
Line 644 MTable::MTable(Pool& apool) : Methoded(a	Line 735 MTable::MTable(Pool& apool) : Methoded(a
add_native_method("sort", Method::CT_DYNAMIC, _sort, 1, 2);	add_native_method("sort", Method::CT_DYNAMIC, _sort, 1, 2);

// ^table.locate[field;value]	// ^table.locate[field;value]
add_native_method("locate", Method::CT_DYNAMIC, _locate, 2, 2);	add_native_method("locate", Method::CT_DYNAMIC, _locate, 1, 2);

// ^table.flip[]	// ^table.flip[]
add_native_method("flip", Method::CT_DYNAMIC, _flip, 0, 0);	add_native_method("flip", Method::CT_DYNAMIC, _flip, 0, 0);
Line 652 MTable::MTable(Pool& apool) : Methoded(a	Line 743 MTable::MTable(Pool& apool) : Methoded(a
// ^table.append{r{tab}e{tab}c{tab}o{tab}r{tab}d}	// ^table.append{r{tab}e{tab}c{tab}o{tab}r{tab}d}
add_native_method("append", Method::CT_DYNAMIC, _append, 1, 1);	add_native_method("append", Method::CT_DYNAMIC, _append, 1, 1);

// ^table.join[table]	// ^table.join[table][$.limit(10) $.offset(1) $.offset[cur] ]
add_native_method("join", Method::CT_DYNAMIC, _join, 1, 1);	add_native_method("join", Method::CT_DYNAMIC, _join, 1, 2);


// ^table:sql[query]	// ^table:sql[query]
Line 662 MTable::MTable(Pool& apool) : Methoded(a	Line 753 MTable::MTable(Pool& apool) : Methoded(a

// ^table:columns[]	// ^table:columns[]
add_native_method("columns", Method::CT_DYNAMIC, _columns, 0, 0);	add_native_method("columns", Method::CT_DYNAMIC, _columns, 0, 0);

	// ^table.select(expression) = table
	add_native_method("select", Method::CT_DYNAMIC, _select, 1, 1);
}	}

// global variable	// global variable

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Removed from v.1.133.2.2
changed lines
	Added in v.1.161