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Derar
Novice
Joined: 09 Sep 2006
Posts: 44
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 Posted: Thu Jul 29, 2010 7:57 pm
[3.22] BUG: %replaceitem always inserts values as type String
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Regardless of what you try to tell %replaceitem to put into a list, it always inserts a string value.
This means that you can never use %replaceitem to insert numbers or nested list elements.
To replicate:
| Code: |
TestList = 1|2|3
#SHOW %json(@TestList)
TestList = %replaceitem(4, 1, @TestList)
#SHOW %json(@TestList)
TestNest = "[[41,25],32,81]"
TestNest = %json(@TestNest)
#SHOW %json(@TestNest)
TestNest = %replaceitem(12|21, 2, @TestNest)
#SHOW %json(@TestNest)
TestNest = %replaceitem("[24,48]", 3, @TestNest)
#SHOW %json(@TestNest)
TestRep = "[24,48]"
TestNest = %replaceitem(%json(@TestRep), 1, @TestNest)
#SHOW %json(@TestNest)
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Outputs:
| Code: |
[1,2,3]
["4",2,3]
[[41,25],32,81]
[[41,25],"12|21",81]
[[41,25],"12|21","[24,48]"]
[[24,48],"12|21","[24,48]"]
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This causes problems with trying to pull replaced list elements for numeric comparison/evaluation, and the obvious issue of the nested element not actually being nested.
EDIT: Totally just noticed the last %replaceitem(%json()) snipped actually worked. However, a little more testing shows that using %int or %number or similar functions does not fix the number aspect of it.
D |
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Zugg
MASTER
Joined: 25 Sep 2000
Posts: 23379
Location: Colorado, USA
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Posted: Fri Jul 30, 2010 4:34 pm
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That is correct because you are using " quotes around your values, which forces CMUD to treat them as string values and not list values. Here is the proper syntax code to test to show that %replaceitem *does* create nested lists:
| Code: |
List = {1|2|3}
#SHOW %json(@List)
Nested = {a|b|c}
#SHOW %json(@Nested)
NewList = %replaceitem( @Nested, 1, @List)
#SHOW %json(@NewList)
Nested = %json("[d,e,f]")
NewList = %replaceitem( @Nested, 1, @List)
#SHOW %json(@NewList)
NewList = %replaceitem( {4|5}, 1, @List)
#SHOW %json(@NewList) |
properly shows the output:
| Code: |
[1,2,3]
["a","b","c"]
[["a","b","c"],2,3]
[["d","e","f"],2,3]
[[4,5],2,3] |
So you need to remember to put {} around your string list values and not " quotes.
Now, your issue about numbers is correct and is definitely a bug, so I'll add that to the bug list. |
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