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The strutils `delete` func with signature
func delete*(s: var string, first, last: int)
was deprecated in adba5eb45e0a, in favor of one with signature
func delete*(s: var string, slice: Slice[int])
However, a few procedures still used the deprecated form. This commit
updates them, resolving these deprecation warnings:
rstgen.nim(766, 12) Warning: use `delete(s, first..last)`; delete is deprecated [Deprecated]
strutils.nim(1651, 19) Warning: use `delete(s, first..last)`; delete is deprecated [Deprecated]
strutils.nim(1679, 7) Warning: use `delete(s, first..last)`; delete is deprecated [Deprecated]
strutils.nim(2472, 7) Warning: use `delete(s, first..last)`; delete is deprecated [Deprecated]
Before this commit:
- `trimZeros` called `s.delete(i+1, i)` for an input that lacks a
trailing zero (like "1.23").
- `removePrefix*(s: var string, prefix: string)` called
`s.delete(0, -1)` when the prefix was the empty string.
which did not modify `s`, nor raise an error. But the newer slice
`delete` raises an `IndexDefect` when the start of the slice is greater
than the end, so we avoid calling the new `delete` for such a case.
Recall that exceptions inheriting from `system.Defect` are not tracked
with the `.raises: []` exception tracking mechanism [1], so this commit
does not break existing code like:
proc foo {.raises: [].} =
var s = "abc1.20"
s.removePrefix("abc")
s.trimZeros()
doAssert s == "1.2"
The `strutils.delete` deprecation was motivated by a problem with
`system.delete` [2][3]:
`system.delete` had surprising behavior when the index passed to it
was out of bounds (it would delete the last entry then). Compile
with `-d:nimStrictDelete` so that an index error is produced
instead.
Be aware however that your code might depend on this quirky behavior
so a review process is required on your part before you can use
`-d:nimStrictDelete`. To make this review easier, use the
`-d:nimAuditDelete` switch, which pretends that `system.delete` is
deprecated so that it is easier to see where it was used in your
code.
`-d:nimStrictDelete` will become the default in upcoming versions.
A similar deprecation happened with `sequtils.delete` [4], but that
deprecated form is already not used in this repo.
[1] https://github.com/nim-lang/Nim/blob/2dec69fe5aa6/doc/manual.md#exception-tracking
[2] https://github.com/nim-lang/Nim/blob/2dec69fe5aa6/changelogs/changelog_1_6_0.md#system
[3] https://github.com/nim-lang/Nim/commit/92cb76571432
[4] https://github.com/nim-lang/Nim/commit/1d6863a7899f
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* remove find optimization
close #19500
* save find to std
* add simple tests
* Apply suggestions from code review
Co-authored-by: konsumlamm <44230978+konsumlamm@users.noreply.github.com>
Co-authored-by: sandytypical <43030857+xflywind@users.noreply.github.com>
Co-authored-by: konsumlamm <44230978+konsumlamm@users.noreply.github.com>
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* make more standard libraries work with `nimPreviewSlimSystem`
* typo
* part two
* Delete specutils.nim
* fixes more tests
* more fixes
* fixes tests
* fixes three more tests
* add formatfloat import
* fix
* last
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rfind on empty needle returns haystack len
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This changes the default for the `last` parameter of various `find`
routines from `0` to `-1`. Previous default prevents limiting the search
to the first character. This is a logic error, as full text search was
performed for 2 *valid* values of `last`: `0` and `last.high()`.
Adds an overload for `initSkipTable` which returns a newly initialized
table. This encapsulates every single usage of a `var`-acting original
func in this module.
Co-authored-by: flywind <xzsflywind@gmail.com>
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fix #19463
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* Make nimIdentNormalize return "" when passed ""; fixes #19067
Fixes #19067
* Add tests for nimIdentNormalize
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consistent with sequtils.delete; follows #18487 (#18510)
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* add string-string tests for find and rfind
* remove duplicate test cases
* remove more redundant test cases
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* strip minor improvement
* add more tests
* Update tests/stdlib/tstrutils.nim
Co-authored-by: Timothee Cour <timothee.cour2@gmail.com>
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* renamed: tests/stdlib/tstrutil.nim -> tests/stdlib/tstrutils.nim
* improve test
* enable tstrutils for js, vm
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