Under Linux (probably POSIX), the current code tests for timeout, but
does not test for connection failure. connectAsync() returns succesfully
upon an EINPROGRESS result; but at this point, the connection state is
still unknown. After selectWrite() is done, we need to test the socket
for errors again.
Following a quesiton on Gitter about loading libraries dynamically based upon some runtime parameter, I noticed there's no documentation on the `dynlib` module for something that's quite common.
* Added codeRepr and dumpCode to the macros module.
This allows those writing macros to write examples, get the code to generate the AST for that example, and then modify that code to be dynamic with the macro function.
* Add ability for users to elide ':' or '=' when CLI authors pass a
non-empty partial symbol table. Behavior should be identical to the
old behavior if empty partial symbol tables are passed. "Partialness"
of the symbol table refers to the fact that one need only specify
option keys that are toggles/booleans/do not take arguments, hence
the "NoArg" suffixes in shortNoArg and longNoArg.
commandLineParams() returns seq[TaintedString], so use that consistently
in getopt() and initOptParser(seq[TaintedString]) dropping the taint at
the quoting stage just as with the paramStr() logic.
Fix capitalization inconsistency of cmdLongOption.
Export OptParser.cmd and OptParser.pos so that, at least *in principle*,
users of this API can handle "--" option processing termination or some
"git-like" sub-command stop word with a separate option sub-syntax.
{ Eg., ``case p.key of "": echo "trailing non-option args: ", p.cmd[p.pos..^1]``
or ``case p.kind of cmdArgument: if p.key == "mysubcmd": ...``. } Really,
searching for the last delimiter before p.pos is probably needed to frame
the trailing text..Not the nicest API, but still possible with effort.
* Make requested changes from string to seq[char]
(see https://github.com/nim-lang/Nim/pull/7297)
* Document new behavior and elaborate on some special cases.
* NoArg => NoVal to be less ambiguous/more clear.
* Add more documentation and an example snippet.
* Tweak language. Clarify still using ':'/'=' is ok.
* Add a test case for new NoVal behavior.
When platform is Windows and app type is GUI, an error about missing DLL file is displayed as message box in addition to the console output, which is usually not visible.
