swiftlang/swift-package-manager
[SR-7831] `ArgumentParser` parses short option and option-argument without delimiting space as a single (likely unrecognised) option
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#4,800 创建于 2018年5月31日
buggood first issue
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描述
| Previous ID | SR-7831 |
| Radar | rdar://problem/36340481 |
| Original Reporter | @aciidb0mb3r |
| Type | Bug |
| Votes | 0 |
| Component/s | Package Manager |
| Labels | Bug, StarterBug |
| Assignee | None |
| Priority | Medium |
md5: 96d5acc7cd3ec4326fc64597be212962
Issue Description:
`ArgumentParser` parses short option and option-argument without delimiting space as a single (likely unrecognised) option.
For example, if an option is added to the parser with a short name of `-n`, `ArgumentParser` parses `-n 2` as the “n” option with “2” as its option-argument.
But it parses `-n2` as the unknown option `n2`.
Where long options are prefixed with `--`, it is common for CLI to treat `-n2` and `-n 2` identically.
This probably also implies `ArgumentParser` doesn’t handle adjoining flags (e.g. parsing `-abc` identically to `-a -b -c`) — but I haven’t tested this.