mal_io.mal

一个内存数据库的源代码这是服务器端还有客户端

#line 36 "/export/scratch0/monet/monet.GNU.64.64.d.14791/MonetDB5/src/modules/mal/mal_io.mx"
module io;
command stdin():bstream
address io_stdin
comment "return the input stream to the database client";
command stderr():streams
address io_stderr
comment "return the error stream for the database console";
command stdout():streams
address io_stdout
comment "return the output stream for the database client";

pattern print(val:any_1,lst:any...):void 
address IOprint_val
comment "Print a MAL value tuple .";

pattern print(b1:bat[:any_1,:any]...):void 
address IOtable
comment "BATs are printed with '#' for legend 
	lines, and the BUNs on seperate lines 
	between brackets, containing each to 
	comma separated values (head and tail). 
	If multiple BATs are passed for printing, 
	print() performs an implicit natural 
	join, producing a multi attribute table.";

pattern ftable( filep:streams, b1:bat[:any_1,:any], b:bat[:any_1,:any]... ):void
address IOftable 
comment "Print an n-ary table to a file.";

pattern print(order:int,b:bat[:any_1,:any], b2:bat[:any_1,:any]...):void
address IOotable
comment "The same as normal table print, but 
	enforces to use the order of BAT 
	number [1..argc] to do the printing.";

pattern table(b1:bat[:any_1,:any], b2:bat[:any_1,:any]...):void 
address IOttable
comment "Print an n-ary table. Like print, but does not print oid column";

pattern table(order:int, b1:bat[:any_1,:any], b2:bat[:any_1,:any]...):void 
address IOtotable
comment "Print an n-ary table.";
pattern ftable(fp:streams, order:int, b1:bat[:any_1,:any], b:bat[:any_1,:any]...):void
address IOfotable 
comment "Print an n-ary table to a file.";

pattern print(val:any_1):void 
address IOprint_val
comment "Print a MAL value tuple .";
pattern print(val:bat[:any_1,:any_2]):void 
address IOprint_val
comment "Print a MAL value tuple .";

pattern prompt(val:any_1):void 
address IOprompt_val
comment "Print a MAL value without brackets.";
pattern printft(val:any_1):void 
address IOprint_ft
comment "Select default format ";

command printf(format:str,val:bit):void
address IOprint_formatted_bit;
command printf(format:str,val:chr):void
address IOprint_formatted_chr;
command printf(format:str,val:int):void
address IOprint_formatted_int;
command printf(format:str,val:sht):void
address IOprint_formatted_sht;
command printf(format:str,val:oid):void
address IOprint_oid;
command printf(format:str,val:lng):void
address IOprint_formatted_lng;
command printf(format:str,val:flt):void
address IOprint_formatted_flt;
command printf(format:str,val:dbl):void
address IOprint_formatted_dbl;
command printf(val:str):void
address IOprint_str;
command printf(format:str,val:str):void
address IOprint_formatted_str;

command export(b:bat[:any_1,:any_2], filepath:str):bit  
address IOexport
comment "Export a BAT as ASCII to a file. If the 'filepath' is not absolute, it
 is put into the .../dbfarm/$DB directory. Success of failure is indicated.";

command import(b:bat[:any_1,:any_2], filepath:str) :bat[:any_1,:any_2] 
address IOimport
comment "Import a BAT from an ASCII dump. The new tuples are *inserted* into the
 parameter BAT. You have to create it! Its signature must match the dump,
 else parsing errors will occur and FALSE is returned.";