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bug(developer): kmc-kmn kmw compiler generates an incorrect offset for nul ... > index(store,n) when in v10+ mode #13307

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mcdurdin opened this issue Feb 21, 2025 · 0 comments · May be fixed by #13326
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bug(developer): kmc-kmn kmw compiler generates an incorrect offset for nul ... > index(store,n) when in v10+ mode #13307

mcdurdin opened this issue Feb 21, 2025 · 0 comments · May be fixed by #13326
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mcdurdin commented Feb 21, 2025 •
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store(&version) '10.0'
store(&TARGETS) 'any'

begin Unicode > use(main)

store(cons) 'mnpqrstv'

group(main) using keys

nul any(cons) + 'e' > '5' index(cons,2)

With this keyboard in Keyman Core 15.0 or later (e.g. debugger, Keyman for Windows), try typing: te

  • The output should be 5t.
  • For KeymanWeb v9 mode, the output is: 5t (correct).

Bugs:

  • For KeymanWeb v10 mode, the output is: 5.

This issue is present in Keyman Core 15.0 and later versions. I have not tested earlier versions.

Note that using index(cons,1) gives a compiler error which makes total sense:

test_13276.kmn (20): Error: 4032 An index() in the output does not have a corresponding any() statement

I have tested the same pattern with if() and it works correctly in Keyman Core, KeymanWeb v9 mode, and KeymanWeb v10 mode.

Related issues:
@mcdurdin mcdurdin added this to the B18S2 milestone Feb 21, 2025
@mcdurdin mcdurdin self-assigned this Feb 21, 2025
@mcdurdin mcdurdin added this to Keyman Feb 21, 2025
@mcdurdin mcdurdin mentioned this issue Feb 21, 2025
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@mcdurdin mcdurdin moved this to Todo in Keyman Feb 21, 2025
@mcdurdin mcdurdin changed the title bug(common): nul, any, and index() have an off-by-one error bug(developer): nul, any, and index() have an off-by-one error in kmc-kmn:kmw v10 compiler Feb 21, 2025
@mcdurdin mcdurdin changed the title bug(developer): nul, any, and index() have an off-by-one error in kmc-kmn:kmw v10 compiler bug(developer): kmc-kmn kmw compiler generates an incorrect offset for nul ... > index(store,n) when in v10+ mode Feb 21, 2025
mcdurdin added a commit that referenced this issue Feb 23, 2025
@mcdurdin
fix(developer): include nul in offset calculations for kmw v10 comp…
8a0dcbb 
…iler

The cached context comparison for v10 kmw compiler includes the `nul`
statement, unlike the comparison in the earlier compiler. This
difference was missed in earlier iterations including the recent patch
in #13003. This patch fixes the problem for both `context(n)` and
`index(store,n)` offset calculations.

Fixes: #13306
Fixes: #13307
Follows: 13003
@mcdurdin mcdurdin linked a pull request Feb 23, 2025 that will close this issue
Open
mcdurdin added a commit that referenced this issue Feb 23, 2025
@mcdurdin
fix(developer): include nul in offset calculations for kmw v10 comp…
a04e977 
…iler

The cached context comparison for v10 kmw compiler includes the `nul`
statement, unlike the comparison in the earlier compiler. This
difference was missed in earlier iterations including the recent patch
in #13003. This patch fixes the problem for both `context(n)` and
`index(store,n)` offset calculations.

Fixes: #13306
Fixes: #13307
Follows: #13003
@mcdurdin mcdurdin linked a pull request Feb 23, 2025 that will close this issue
fix(developer): include nul in offset calculations for kmw v10 compiler #13326
Open
@mcdurdin mcdurdin moved this from Todo to In Progress in Keyman Feb 23, 2025
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Status: In Progress
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fix(developer): include nul in offset calculations for kmw v10 compiler keymanapp/keyman
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