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NAMEctags-lang-julia - Random notes about tagging Julia source code with Universal-ctagsSYNOPSISctags ... --languages=+Julia ... ctags ... --language-force=Julia ... ctags ... --map-Julia=+.jl ... DESCRIPTIONThis man page gathers random notes about tagging Julia source code.TAGGING IMPORT AND USING EXPRESSIONSSummaryusing X
using X: a, b
import X
import X.a, Y.b
import X: a, b
Examples"input.jl"using X0 "output.tags" with "--options=NONE -o - --extras=+r --fields=+rzK input.jl" X0 input.jl /^using X0$/;" kind:module roles:used --extras=+r (or --extras=+{reference}) option is needed for this tag, since it's a reference tag. This is because module X is not defined here. It is defined in another file. Enable roles: field with --fields=+r is for recording that the module is "used", i.e., loaded by using. "input.jl" import X1.a, X2.b, X3 "output.tags" with "--options=NONE -o - --extras=+r --fields=+rzKZ input.jl" X1 input.jl /^import X1.a, X2.b, X3$/;" kind:module roles:namespace X2 input.jl /^import X1.a, X2.b, X3$/;" kind:module roles:namespace X3 input.jl /^import X1.a, X2.b, X3$/;" kind:module roles:imported a input.jl /^import X1.a, X2.b, X3$/;" kind:unknown scope:module:X1 roles:imported b input.jl /^import X1.a, X2.b, X3$/;" kind:unknown scope:module:X2 roles:imported Why X1 and X2 have role "namespace", while X3 have role "imported"? It's because the symbol a in module X1, and b in module X2 are brought to the current scope, but X1 and X2 themselves are not. We use "namespace" role for such modules. X3 is different. The symbol X3, together with all exported symbols in X3, is brought to current scope. For such modules, we use "imported" or "used" role depending whether they are loaded by import or using. Also, notice that a and b have the "unknown" kind. This is because we cannot know whether it's a function, constant, or macro, etc. SEE ALSOctags(1), ctags-client-tools(7)
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