Question load function (I think)
I am making a little command processor to run on a server. The current plan is that the command will be a string containing a command word followed by various REBOL values that vary depending on the command word. A sample follows.
If the command line has several values and I 'load' it, I get a block of those values. But, if the command line is a command that needs just the command word and nothing following, and I load the line, the result is a word. In other words, NOT a block with the first (and only) item being the command word. I would like to find a way to 'load' the command line so that the result is the same no matter how many values are on the line.
I could use parse, as shown in the example. If I do that, the result is a block, but each item in the block is a string, which means I have to do some conversion (not a big deal) and that I lose the smoothness of the REBOL-recognized values.
Is there a third option I am missing?
Thank you.
Sample:
R E B O L [
]
MSG-MULTIWORD: {notice %test.txt 'notice text'}
MSG-SINGLEWORD: {quit}
PARTS-MULTIWORD: load MSG-MULTIWORD
PARTS-SINGLEWORD: load MSG-SINGLEWORD
PARSED-MULTIWORD: parse MSG-MULTIWORD none
print ['PARTS-MULTIWORD is a ' type? PARTS-MULTIWORD]
print ['PARTS-MULTIWORD/1 is a ' type? PARTS-MULTIWORD/1 ' = ' PARTS-MULTIWORD/1]
print ['PARTS-MULTIWORD/2 is a ' type? PARTS-MULTIWORD/2 ' = ' PARTS-MULTIWORD/2]
print ['PARTS-MULTIWORD/3 is a ' type? PARTS-MULTIWORD/3 ' = ' PARTS-MULTIWORD/3]
print '-----------------------'
print ['PARTS-SINGLEWORD is a ' type? PARTS-SINGLEWORD]
print '-----------------------'
print ['PARSED-MULTIWORD is a ' type? PARSED-MULTIWORD]
print ['PARSED-MULTIWORD/1 is a ' type? PARSED-MULTIWORD/1 ' = ' PARSED-MULTIWORD/1]
print ['PARSED-MULTIWORD/2 is a ' type? PARSED-MULTIWORD/2 ' = ' PARSED-MULTIWORD/2]
print ['PARSED-MULTIWORD/3 is a ' type? PARSED-MULTIWORD/3 ' = ' PARSED-MULTIWORD/3]
print '-----------------------'
halt
Result:
PARTS-MULTIWORD is a block
PARTS-MULTIWORD/1 is a word = notice
PARTS-MULTIWORD/2 is a file = test.txt
PARTS-MULTIWORD/3 is a string = notice text
-----------------------
PARTS-SINGLEWORD is a word
-----------------------
PARSED-MULTIWORD is a block
PARSED-MULTIWORD/1 is a string = notice
PARSED-MULTIWORD/2 is a string = %test.txt
PARSED-MULTIWORD/3 is a string = notice text
-----------------------
posted by: Steven White 11-Dec-2015/17:02:57-8:00
You can use 'to-block:
>> MSG-MULTIWORD: to-block {notice %test.txt 'notice text'}
== [notice %test.txt 'notice text']
>> MSG-SINGLEWORD: to-block {quit}
== [quit]
You can also use 'to-block to convert the values assigned to the words, after they've been defined:
MSG-MULTIWORD: {notice %test.txt 'notice text'}
MSG-SINGLEWORD: {quit}
probe to-block MSG-MULTIWORD
probe to-block MSG-SINGLEWORD
posted by: Nick 11-Dec-2015/20:48:36-8:00
Load/all is what you are looking for.
posted by: MarkI 12-Dec-2015/7:46:08-8:00
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