AT&T Home | AT&T Labs | Research
AT&T Labs, Inc. - Research

The Yoix® Scripting Language

Home | What's New | Grammar | Documentation | Download | License | YDAT | YWAIT | Byzgraf | FAQs
import grammar
 
A directive which causes the specified value to be brought into the global dictionary. When the value is a dictionary and is followed by a dot-star (.*), then all the elements in the dictionary are imported. Its usage description can be summarized as follows: 
Statement:
	import Lvalue ;
	import Lvalue .* ;
 
 Example:   In the following example, the effects of importing are demonstrated when the elements in the global dictionary are displayed after each import. Notice that the declaration puts the dictionary into the global environment, but not its elements until import is used. 
yoix.stdio.printf("global (initially): %O\n", global);

import yoix.stdio.printf;

printf("global (printf imported): %O\n", global);

Dictionary mydict = {
    int YES = 1;
    int NO = 0;
    int HIGH = 1;
    int MEDIUM = 0;
    int LOW = -1;
};

printf("global (mydict declared): %O\n", global);

import mydict.YES;
import mydict.NO;

printf("global (YES/NO imported): %O\n", global);

import mydict.*;

printf("global (mydict imported): %O\n", global);
The result on standard output looks like: 
global (initially): Dictionary[5:0]
    argc=1
    argv=Array[1:0]
    envp=NULL:ARRAY
    errordict=Dictionary[7:0]
   >typedict=Dictionary[76:0]
global (printf imported): Dictionary[6:0]
    argc=1
    argv=Array[1:0]
    envp=NULL:ARRAY
    errordict=Dictionary[7:0]
    printf=att.research.yoix.YoixBuiltinsStdio.printf(a1, ...)
   >typedict=Dictionary[76:0]
global (mydict declared): Dictionary[7:0]
    argc=1
    argv=Array[1:0]
    envp=NULL:ARRAY
    errordict=Dictionary[7:0]
    mydict=Dictionary[5:0]
    printf=att.research.yoix.YoixBuiltinsStdio.printf(a1, ...)
   >typedict=Dictionary[76:0]
global (YES/NO imported): Dictionary[9:0]
    NO=0
    YES=1
    argc=1
    argv=Array[1:0]
    envp=NULL:ARRAY
    errordict=Dictionary[7:0]
    mydict=Dictionary[5:0]
    printf=att.research.yoix.YoixBuiltinsStdio.printf(a1, ...)
   >typedict=Dictionary[76:0]
global (mydict imported): Dictionary[12:0]
    HIGH=1
    LOW=-1
    MEDIUM=0
    NO=0
    YES=1
    argc=1
    argv=Array[1:0]
    envp=NULL:ARRAY
    errordict=Dictionary[7:0]
    mydict=Dictionary[5:0]
    printf=att.research.yoix.YoixBuiltinsStdio.printf(a1, ...)
   >typedict=Dictionary[76:0]
 
 See Also:   Dictionary, global, include, reference

 

Yoix is a registered trademark of AT&T Intellectual Property.