rebol3

问题 Currently I start a GUI from the console which involves first loading the GUI with load-gui and then run the script which shows the GUI. How can I start the GUI without a console showing? 回答1: You have to specify the open/exe action for the R3 script : the R3 exe. 来源： https://stackoverflow.com/questions/24717336/how-do-you-start-a-rebol3-gui-script-without-the-console-showing

问题 I'm trying to add a field to a layout after it has been viewed view/no-wait m: [field "hello"] insert tail m 'field insert tail m "hello" update-face m ** Script error: update-face does not allow block! for its face argument I want to update the whole layout, not just the field or some part of it. If I try to use view m , it opens a new window. Do I just have to un-view it and then view again? 回答1: You can use the LAYOUT function in R3-GUI as well. See the example below: view/no-wait m:

问题 Using R3, I need to get a localized version of a page from a website that uses cookies to handle this. In REBOL 2.x, I could do this: page: http://www.rci.com/resort-directory/resortDetails?resortCode=0450 read/custom page [header [Cookie: "USER_LOCALE=fr_FR"]] Based on the sketchy docs for R3, I should be able to do something like: result: write page [GET [Cookie: "USER_LOCALE"] {fr_FR}] Anyone have any ideas? The R2 method worked well, but since R2 doesn't handle UTF-8 needed for many

问题 The IN function in Rebol finds out if a field is in an object: USAGE: IN object word DESCRIPTION: Returns the word or block in the object's context. IN is a native value. ARGUMENTS: object (any-object! block!) word -- (modified if series) (any-word! block! paren!) The claim is it works with objects or blocks. It works okay if I try it with an object: >> in object [foo: 10 bar: 20] 'foo == foo But if I just try it with a raw block, it gives back NONE: >> in [foo: 10 bar: 20] 'foo == none Guess

问题 Using the REBOL/View 2.7.8 Core, I would like to prepare a view layout beforehand by automatically assigning words to various layout items, as in the following example. Instead of prepared-view: [across cb1: check label "Checkbox 1" cb2: check label "Checkbox 2" cb3: check label "Checkbox 3" cb4: check label "Checkbox 4" ] view layout prepared-view I would thus like the words cb1 thru cb5 to be created automatically, e.g.: prepared-view2: [ across ] for i 1 4 1 [ cbi: join "cb" i cbi: join

问题 Using the REBOL/View 2.7.8 Core, I would like to prepare a view layout beforehand by automatically assigning words to various layout items, as in the following example. Instead of prepared-view: [across cb1: check label "Checkbox 1" cb2: check label "Checkbox 2" cb3: check label "Checkbox 3" cb4: check label "Checkbox 4" ] view layout prepared-view I would thus like the words cb1 thru cb5 to be created automatically, e.g.: prepared-view2: [ across ] for i 1 4 1 [ cbi: join "cb" i cbi: join

问题 On the one hand we have: >> source object object: make function! [[ "Defines a unique object." blk [block!] "Object words and values." ][ make object! append blk none ]] For context we see: >> source context context: make function! [[ "Defines a unique object." blk [block!] "Object words and values." ][ make object! blk ]] So, for object the object is constructed from a block to which none has been appended. This doesn't change the length, or, to my knowledge, add anything. With context , on

问题 I saw someone mention the reword function today, but documentation for it is very brief. It looks like shell script environment variable substitution, or maybe regex substitution, but different. How do I use this function and what kind of gotchas am I going to run into? 回答1: Here there be dragons! The reword function is a bit of an experiment to add shell-style string interpolation to Rebol in a way that works with the way we do things. Unlike a lot of Rebol's series functions, it really is

问题 The DO dialect uses series of category PAREN! for precedence, and will usually boil away the underlying parentheses structure prior to invoking a function. However, it used to be possible in Rebol 2 to specify in a function's definition that you wanted it to suppress evaluation of parentheses at the callsite. You did this by using a "literal word" apostrophe mark on a parameter: evaluated: func [param] [probe param] non-evaluated: func ['param] [probe param] >> evaluated (1 + 2) 3 >> non

问题 I understand that the module! type provides a better structure for protected namespaces than object! or the 'use function. How are words bound within the module—I notice some errors related to unbound words: REBOL [Type: 'module] set 'foo "Bar" Also, how does Rebol distinguish between a word local to the module ( 'foo ) and that of a system function ( 'set )? Minor update, shortly after: I see there's a switch that changes the method of binding: REBOL [Type: 'module Options: [isolate]] set