Can't parse a DateTime with optional milliseconds if there is anything after it

[iamed2]

Here are some things that work:

julia> parse(DateTime, "2014-01-03T12:12:12", dateformat"yyyy-mm-dd\THH:MM:SS.s")
2014-01-03T12:12:12

julia> parse(DateTime, "2014-01-03T12:12:12.12Z", dateformat"yyyy-mm-dd\THH:MM:SS.sZ")
2014-01-03T12:12:12.12

Here is a thing that doesn't work:

julia> parse(DateTime, "2014-01-03T12:12:12Z", dateformat"yyyy-mm-dd\THH:MM:SS.sZ")
ERROR: ArgumentError: Unable to parse date time. Expected directive Delim(.) at char 20
Stacktrace:
 [1] @generated body at /Users/ericdavies/repos/juliamaster/usr/share/julia/stdlib/v0.7/Dates/src/parse.jl:104 [inlined]
 [2] tryparsenext_core(::String, ::Int64, ::Int64, ::DateFormat{Symbol("yyyy-mm-dd\\THH:MM:SS.s "),Tuple{Dates.DatePart{'y'},Dates.Delim{Char,1},Dates.DatePart{'m'},Dates.Delim{Char,1},Dates.DatePart{'d'},Dates.Delim{Char,1},Dates.DatePart{'H'},Dates.Delim{Char,1},Dates.DatePart{'M'},Dates.Delim{Char,1},Dates.DatePart{'S'},Dates.Delim{Char,1},Dates.DatePart{'s'},Dates.Delim{Char,1}}}, ::Bool) at /Users/ericdavies/repos/juliamaster/usr/share/julia/stdlib/v0.7/Dates/src/parse.jl:40
 [3] @generated body at /Users/ericdavies/repos/juliamaster/usr/share/julia/stdlib/v0.7/Dates/src/parse.jl:150 [inlined]
 [4] tryparsenext_internal at /Users/ericdavies/repos/juliamaster/usr/share/julia/stdlib/v0.7/Dates/src/parse.jl:127 [inlined]
 [5] parse(::Type{DateTime}, ::String, ::DateFormat{Symbol("yyyy-mm-dd\\THH:MM:SS.s "),Tuple{Dates.DatePart{'y'},Dates.Delim{Char,1},Dates.DatePart{'m'},Dates.Delim{Char,1},Dates.DatePart{'d'},Dates.Delim{Char,1},Dates.DatePart{'H'},Dates.Delim{Char,1},Dates.DatePart{'M'},Dates.Delim{Char,1},Dates.DatePart{'S'},Dates.Delim{Char,1},Dates.DatePart{'s'},Dates.Delim{Char,1}}}) at /Users/ericdavies/repos/juliamaster/usr/share/julia/stdlib/v0.7/Dates/src/parse.jl:282
 [6] top-level scope

This makes it impossible to parse a DateTime with optional milliseconds if there is anything after it.

[omus]

Related: JuliaTime/TimeZones.jl#83

[cormullion]

related: #23049

[alhirzel]

see also: scls19fr/KMLTracks.jl#5