InteractiveCodeSearch.jl –- Interactively search Julia code

Julia has @edit, @less, etc. which are very handy for reading the implementation of functions. However, you need to specify a "good enough" set of (type) parameters for them to find the location of the code.

Instead, InteractiveCodeSearch provides a few macros to interactively choose the code you want to read.

• Interactively choose a method signature before opening the code location in your editor.
• Various ways to search methods, such as: by function name @search show, function call expression @search show(stdout, "hello"), function call signature @search show(::IO, ::String), module name @search Base, argument value @searchmethods 1, and argument type @searchmethods ::Int.
• Interactively search history. It works in IJulia as well.

using InteractiveCodeSearch
@search show             # search method definitions
@searchmethods 1         # search methods defined for integer
@searchhistory           # search history (Julia ≥ 0.7)

• Interactive matching command. For example:

  • fzf (default in terminal)
  • peco
  • percol
  • rofi (GUI; default in IJulia)

@search x [:shallow | :s | :recursive | :r]

List file locations at which x are defined in an interactive matcher and then open the chosen location in the editor.

When x is a module, only the top-level definitions are searched. To search all definitions in the submodule, pass :recursive or :r flag.

@search

If no expression is provided, search for the method returned by the previous execution; i.e., x defaults to ans.

Examples

@search show                      # all method definitions
@search @time                     # all macro definitions
@search Base.Enums                # methods and macros in a module
@search REPL :r                   # search the module recursively
@search *(::Integer, ::Integer)   # methods with specified types
@search dot(π, ℯ)                 # methods with inferred types

Note that @search evaluates complex expression with . and [] such as follows and search the returned value or the type of it:

@search Base.Multimedia.displays[2].repl

@searchmethods x
@searchmethods ::X

Interactively search through methodswith(typeof(x)) or methodswith(X).

Examples

@searchmethods 1         # search methods defined for integer
@searchmethods ::Int     # search methods defined for a specified type

@searchhistory

Search history interactively. Interactively narrows down the code you looking for from the REPL history.

Limitation/feature in IJulia: In IJulia, @searchhistory searches history of terminal REPL, not the history of the current IJulia session.

Configuration interface for InteractiveCodeSearch.

Examples

using InteractiveCodeSearch
InteractiveCodeSearch.CONFIG.interactive_matcher = `fzf ...`  # default in terminal
InteractiveCodeSearch.CONFIG.interactive_matcher = `peco`
InteractiveCodeSearch.CONFIG.interactive_matcher = `percol`
InteractiveCodeSearch.CONFIG.interactive_matcher =
    `rofi -dmenu -i -p "🔎"`  # use GUI matcher (default in non-terminal
                              # environment like IJulia)
InteractiveCodeSearch.CONFIG.interactive_matcher =
    `rofi -dmenu -i -p "🔎" -fullscreen`  # bigger screen
InteractiveCodeSearch.CONFIG.open = edit  # default
InteractiveCodeSearch.CONFIG.open = less  # use Base.less to read code
InteractiveCodeSearch.CONFIG.auto_open = true   # default
InteractiveCodeSearch.CONFIG.auto_open = false  # open matcher even when there
                                                # is only one candidate
InteractiveCodeSearch.CONFIG.trigger_key = ')'      # insert "@search" on ')' (default)
InteractiveCodeSearch.CONFIG.trigger_key = nothing  # disable shortcut

Using InteractiveCodeSearch.jl by default

Put the following code in your ~/.julia/config/startup.jl (≥ Julia 0.7) or ~/.juliarc.jl (Julia 0.6):

using InteractiveCodeSearch
# InteractiveCodeSearch.CONFIG.interactive_matcher = ...