String.split suggestion
BlitzMax Forums/BlitzMax Programming/String.split suggestion
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| s$="Blitz Max" Local sa$[] sa=s.split(" ") Notify sa[1] I recommend making it so it will ignore double-spaces if space is the divider. |
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| That could be useful as a parser. On a similar note, I thought it might be cool if you could use "+" (or something similar) with slices to create a new array: Global a[] = [1,2,3,4,5] a = a[..2] + a[4..] to create a new array with [3] missing and a.length shortened by one. It's not that hard to do it in other ways, but this would be useful. Russell |
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| Hi, Use "" (empty string) to split by whitespace sequences. |
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| On a similar note, I thought it might be cool if you could use "+" (or something similar) with slices to create a new array: Global a[] = [1,2,3,4,5] a = a[..2] + a[4..] to create a new array with [3] missing and a.length shortened by one. It's not that hard to do it in other ways, but this would be useful. I thought this was one of the new features in v1.26. |
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| Nice! |
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| Yeah, sorry about lack of docs - it was slipped in at the last minute to fix a bug when splitting with an empty string. |
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| you know what I really miss from my perl days.... (var1,var2,var3) = somefunctionthatreturnsanarray() I find uses for it all the time, the most obvious would be: local (red,green,blue) = GetColor() |
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| Just do this: somefunction(varptr red,varptr green,varptr blue) |
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| you know what I really miss from my perl days.... (var1,var2,var3) = somefunctionthatreturnsanarray() Quite a few scripting languages these days support this - I think such 'auto structs' are called 'tuples'. I've never used a language that supported tuples myself, but they look pretty cool. |
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| Just do this: that's what I sometimes do but exactly what I want to avoid because it's rarely appropriate or even readable. that GetColor while the most obvious was not presented the best for an example. this is better and all would work under this method.somefunction(varptr red,varptr green,varptr blue) local (red,green,blue) = GetColor( color:int ) local (red,green,blue,alpha) = GetColor( color:int ) local alpha = GetColor( color:int )[3] ' though we can do that now using var can get messy and you might have to resort to a type or just returning the array and setting the vars. allowing sequential assignments of an array is also awesome for reading files and databases. |
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| I've never used a language that supported tuples myself, but they look pretty cool. I hope that translates into "I'll see if it's possible for Max" :)[edit] tuples.... I didn't notice that or know that. I got too excited about the "cool" comment. |
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| @SebHoll: I haven't downloaded 1.26 because it seemed like some people were having issues with it, so I wanted to wait. Good to know it's in there, though! Since we're talking about features that would be cool, here's one that used to be in Blitz 2 for the Amiga: Type blah Field a Field b End Type Test.blah = New blah Test = 3 (I may be off a bit on the syntax...it's been a few years...). But anyway, that last line would default to the first field when no "\" was used (a would equal 3). In fact, I think you could even go: Test = 3,4 where both a and b would get their values changed. Could be useful if you imagine a type with a dozen or more fields in it: Test = 3,4,"Hello",7.9,"Tuesday" instead of: Test\a = 3 Test\b = 4 Test\c.s = "Hello" Test\d# = 7.9 Test\e.s = "Tuesday" (Don't know if mixing base types in the shortcut example would cause confusion, but as long as they matched their respected fields I guess it wouldn't matter - probably not the 'best' programming practice...) Russell |
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