feat(utils) add npairs nil-safe numeric iterator
#387
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It honours the `table.n` size field.
alerque
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Aug 31, 2021
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Feb 13, 2022
## 1.12.0 (2022-Jan-10) - deprecate: module `pl.text` the contents have moved to `pl.stringx` (removal later) [#407](lunarmodules/Penlight#407) - deprecate: module `pl.xml`, please switch to a more specialized library (removal later) [#409](lunarmodules/Penlight#409) - feat: `utils.npairs` added. An iterator with a range that honours the `n` field [#387](lunarmodules/Penlight#387) - fix: `xml.maptags` would hang if it encountered text-nodes [#396](lunarmodules/Penlight#396) - fix: `text.dedent` didn't handle declining indents nor empty lines [#402](lunarmodules/Penlight#402) - fix: `dir.getfiles`, `dir.getdirectories`, and `dir.getallfiles` now have the directory optional, as was already documented [#405](lunarmodules/Penlight#405) - feat: `array2d.default_range` now also takes a spreadsheet range, which means also other functions now take a range. [#404](lunarmodules/Penlight#404) - fix: `lapp` enums allow [patterns magic characters](https://www.lua.org/pil/20.2.html) [#393](lunarmodules/Penlight#393) - fix: `text.wrap` and `text.fill` numerous fixes for handling whitespace, accented characters, honouring width, etc. [#400](lunarmodules/Penlight#400) - feat: `text.wrap` and `text.fill` have a new parameter to forcefully break words longer than the width given. [#400](lunarmodules/Penlight#400) - fix: `stringx.expandtabs` could error out on Lua 5.3+ [#406](lunarmodules/Penlight#406) - fix: `pl` the module would not properly forward the `newindex` metamethod on the global table. [#395](lunarmodules/Penlight#395) - feat: `utils.enum` added to create enums and prevent magic strings [#408](lunarmodules/Penlight#408) - change: `xml.new` added some sanity checks on input [#397](lunarmodules/Penlight#397) - added: `xml.xml_escape` and `xml.xml_unescape` functions (previously private) [#397](lunarmodules/Penlight#397) - feat: `xml.tostring` now also takes numeric indents (previously only strings) [#397](lunarmodules/Penlight#397) - fix: `xml.walk` now detects recursion (errors out) [#397](lunarmodules/Penlight#397) - fix: `xml.clone` now detects recursion (errors out) [#397](lunarmodules/Penlight#397) - fix: `xml.compare` now detects recursion (errors out) [#397](lunarmodules/Penlight#397) - fix: `xml.compare` text compares now work [#397](lunarmodules/Penlight#397) - fix: `xml.compare` attribute order compares now only compare if both inputs provide an order [#397](lunarmodules/Penlight#397) - fix: `xml.compare` child comparisons failing now report proper error [#397](lunarmodules/Penlight#397)
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Most importantly It honours the
table.nsize field by default. Similar toutils.packandutils.unpack. This allows to iterate quickly over a table with "holes".