Merge pull request #1893 from JuliaPlots/doc_pr

rebased docpr from sswatson

src/Plots.jl

@@ -186,97 +186,7 @@ include("backends/plotly.jl")
 include("backends/gr.jl")
 include("backends/web.jl")
 
-# ---------------------------------------------------------
+include("shorthands.jl") 
-
-@shorthands scatter
-@shorthands bar
-@shorthands barh
-@shorthands histogram
-@shorthands barhist
-@shorthands stephist
-@shorthands scatterhist
-@shorthands histogram2d
-@shorthands density
-@shorthands heatmap
-@shorthands plots_heatmap
-@shorthands hexbin
-@shorthands sticks
-@shorthands hline
-@shorthands vline
-@shorthands hspan
-@shorthands vspan
-@shorthands ohlc
-@shorthands contour
-@shorthands contourf
-@shorthands contour3d
-@shorthands surface
-@shorthands wireframe
-@shorthands path3d
-@shorthands scatter3d
-@shorthands boxplot
-@shorthands violin
-@shorthands quiver
-@shorthands curves
-
-"Plot a pie diagram"
-pie(args...; kw...)        = plot(args...; kw...,  seriestype = :pie, aspect_ratio = :equal, grid=false, xticks=nothing, yticks=nothing)
-pie!(args...; kw...)       = plot!(args...; kw..., seriestype = :pie, aspect_ratio = :equal, grid=false, xticks=nothing, yticks=nothing)
-
-"Plot with seriestype :path3d"
-plot3d(args...; kw...)     = plot(args...; kw...,  seriestype = :path3d)
-plot3d!(args...; kw...)    = plot!(args...; kw..., seriestype = :path3d)
-
-"Add title to an existing plot"
-title!(s::AbstractString; kw...)                 = plot!(; title = s, kw...)
-
-"Add xlabel to an existing plot"
-xlabel!(s::AbstractString; kw...)                = plot!(; xlabel = s, kw...)
-
-"Add ylabel to an existing plot"
-ylabel!(s::AbstractString; kw...)                = plot!(; ylabel = s, kw...)
-
-"Set xlims for an existing plot"
-xlims!(lims::Tuple{T,S}; kw...) where {T<:Real,S<:Real} = plot!(; xlims = lims, kw...)
-
-"Set ylims for an existing plot"
-ylims!(lims::Tuple{T,S}; kw...) where {T<:Real,S<:Real} = plot!(; ylims = lims, kw...)
-
-"Set zlims for an existing plot"
-zlims!(lims::Tuple{T,S}; kw...) where {T<:Real,S<:Real} = plot!(; zlims = lims, kw...)
-
-xlims!(xmin::Real, xmax::Real; kw...)                     = plot!(; xlims = (xmin,xmax), kw...)
-ylims!(ymin::Real, ymax::Real; kw...)                     = plot!(; ylims = (ymin,ymax), kw...)
-zlims!(zmin::Real, zmax::Real; kw...)                     = plot!(; zlims = (zmin,zmax), kw...)
-
-
-"Set xticks for an existing plot"
-xticks!(v::TicksArgs; kw...) where {T<:Real}                       = plot!(; xticks = v, kw...)
-
-"Set yticks for an existing plot"
-yticks!(v::TicksArgs; kw...) where {T<:Real}                       = plot!(; yticks = v, kw...)
-
-xticks!(
-ticks::AVec{T}, labels::AVec{S}; kw...) where {T<:Real,S<:AbstractString}     = plot!(; xticks = (ticks,labels), kw...)
-yticks!(
-ticks::AVec{T}, labels::AVec{S}; kw...) where {T<:Real,S<:AbstractString}     = plot!(; yticks = (ticks,labels), kw...)
-
-"Add annotations to an existing plot"
-annotate!(anns...; kw...)                                 = plot!(; annotation = anns, kw...)
-annotate!(anns::AVec{T}; kw...) where {T<:Tuple}                 = plot!(; annotation = anns, kw...)
-
-"Flip the current plots' x axis"
-xflip!(flip::Bool = true; kw...)                          = plot!(; xflip = flip, kw...)
-
-"Flip the current plots' y axis"
-yflip!(flip::Bool = true; kw...)                          = plot!(; yflip = flip, kw...)
-
-"Specify x axis attributes for an existing plot"
-xaxis!(args...; kw...)                                    = plot!(; xaxis = args, kw...)
-
-"Specify x axis attributes for an existing plot"
-yaxis!(args...; kw...)                                    = plot!(; yaxis = args, kw...)
-xgrid!(args...; kw...)                                    = plot!(; xgrid = args, kw...)
-ygrid!(args...; kw...)                                    = plot!(; ygrid = args, kw...)
 
 let PlotOrSubplot = Union{Plot, Subplot}
     global title!(plt::PlotOrSubplot, s::AbstractString; kw...)                  = plot!(plt; title = s, kw...)

src/arg_desc.jl

@@ -10,7 +10,7 @@ const _arg_desc = KW(
 :linewidth         	=> "Number. Width of the line (in pixels)",
 :linecolor         	=> "Color Type. Color of the line (for path and bar stroke).  `:match` will take the value from `:seriescolor`, (though histogram/bar types use `:black` as a default).",
 :linealpha         	=> "Number in [0,1]. The alpha/opacity override for the line.  `nothing` (the default) means it will take the alpha value of linecolor.",
-:fillrange         	=> "Number or AbstractVector.  Fills area from this to y for line-types, sets the base for bar/stick types, and similar for other types.",
+:fillrange         	=> "Number or AbstractVector.  Fills area between fillrange and y for line-types, sets the base for bar/stick types, and similar for other types.",
 :fillcolor         	=> "Color Type. Color of the filled area of path or bar types.  `:match` will take the value from `:seriescolor`.",
 :fillalpha         	=> "Number in [0,1]. The alpha/opacity override for the fill area.  `nothing` (the default) means it will take the alpha value of fillcolor.",
 :markershape       	=> "Symbol, Shape, or AbstractVector. Choose from $(_allMarkers).",
@@ -21,7 +21,7 @@ const _arg_desc = KW(
 :markerstrokewidth 	=> "Number. Width of the marker stroke (border. in pixels)",
 :markerstrokecolor 	=> "Color Type. Color of the marker stroke (border).  `:match` will take the value from `:foreground_color_subplot`.",
 :markerstrokealpha 	=> "Number in [0,1]. The alpha/opacity override for the marker stroke (border).  `nothing` (the default) means it will take the alpha value of markerstrokecolor.",
-:bins              	=> "Integer, NTuple{2,Integer}, AbstractVector or Symbol. Default is :auto (the Freedman-Diaconis rule). For histogram-types, defines the approximate number of bins to aim for, or the auto-binning algorithm to use (:sturges, :sqrt, :rice, :scott or :fd). For fine-grained control pass a Vector of break values, e.g. `range(min(x), stop = extrema(x), length = 25)`",
+:bins              	=> "Integer, NTuple{2,Integer}, AbstractVector or Symbol. Default is :auto (the Freedman-Diaconis rule). For histogram-types, defines the approximate number of bins to aim for, or the auto-binning algorithm to use (:sturges, :sqrt, :rice, :scott or :fd). For fine-grained control pass a Vector of break values, e.g. `range(minimum(x), stop = maximum(x), length = 25)`",
 :smooth            	=> "Bool.  Add a regression line?",
 :group             	=> "AbstractVector. Data is split into a separate series, one for each unique value in `group`.",
 :x                 	=> "Various. Input data. First Dimension",
@@ -30,7 +30,7 @@ const _arg_desc = KW(
 :marker_z          	=> "AbstractVector, Function `f(x,y,z) -> z_value`, or Function `f(x,y) -> z_value`, or nothing. z-values for each series data point, which correspond to the color to be used from a markercolor gradient.",
 :line_z          	=> "AbstractVector, Function `f(x,y,z) -> z_value`, or Function `f(x,y) -> z_value`, or nothing. z-values for each series line segment, which correspond to the color to be used from a linecolor gradient.  Note that for N points, only the first N-1 values are used (one per line-segment).",
 :fill_z                 => "Matrix{Float64} of the same size as z matrix, which specifies the color of the 3D surface; the default value is `nothing`.",
-:levels            	=> "Integer, NTuple{2,Integer}. Number of levels (or x-levels/y-levels) for a contour type.",
+:levels            	=> "Integer, NTuple{2,Integer}, or AbstractVector. Levels or number of levels (or x-levels/y-levels) for a contour type.",
 :orientation       	=> "Symbol.  Horizontal or vertical orientation for bar types.  Values `:h`, `:hor`, `:horizontal` correspond to horizontal (sideways, anchored to y-axis), and `:v`, `:vert`, and `:vertical` correspond to vertical (the default).",
 :bar_position      	=> "Symbol.  Choose from `:overlay` (default), `:stack`.  (warning: May not be implemented fully)",
 :bar_width              => "nothing or Number. Width of bars in data coordinates. When nothing, chooses based on x (or y when `orientation = :h`).",
@@ -98,7 +98,7 @@ const _arg_desc = KW(
 :legendfont               => "Font. Font of legend items.",
 :annotations              => "(x,y,text) tuple(s).  Can be a single tuple or a list of them.  Text can be String or PlotText (created with `text(args...)`)  Add one-off text annotations at the x,y coordinates.",
 :projection               => "Symbol or String.  '3d' or 'polar'",
-:aspect_ratio             => "Symbol (:equal) or Number. Plot area is resized so that 1 y-unit is the same size as `apect_ratio` x-units.",
+:aspect_ratio             => "Symbol (:equal) or Number. Plot area is resized so that 1 y-unit is the same size as `aspect_ratio` x-units.",
 :margin                   => "Measure (multiply by `mm`, `px`, etc). Base for individual margins... not directly used.  Specifies the extra padding around subplots.",
 :left_margin              => "Measure (multiply by `mm`, `px`, etc) or `:match` (matches `:margin`).  Specifies the extra padding to the left of the subplot.",
 :top_margin               => "Measure (multiply by `mm`, `px`, etc) or `:match` (matches `:margin`).  Specifies the extra padding on the top of the subplot.",

src/components.jl

@@ -256,7 +256,25 @@ mutable struct Font
   color::Colorant
 end
 
-"Create a Font from a list of unordered features"
+"""
+    font(args...)
+
+Create a Font from an unordered list of features. 
+
+# Arguments
+
+- `family`: AbstractString. "serif" or "sans-serif" or "monospace" 
+- `pointsize`: Integer. Size of font in points
+- `halign`: Symbol. Horizontal alignment (:hcenter, :left, or :right)
+- `valign`: Symbol. Vertical aligment (:vcenter, :top, or :bottom)
+- `rotation`: Real. Angle of rotation for text in degrees (use a non-integer type)
+- `color`: Colorant or Symbol
+
+# Examples 
+```julia-repl
+julia> text("sans-serif",8,:hcenter,45.0,:blue)
+```
+"""
 function font(args...)
 
   # defaults

src/shorthands.jl

@@ -0,0 +1,455 @@
+"""
+    scatter(x,y)
+    scatter!(x,y)
+
+Make a scatter plot of y vs x. 
+
+# Examples
+```julia-repl 
+julia> scatter([1,2,3],[4,5,6],markersize=[3,4,5],markercolor=[:red,:green,:blue])
+julia> scatter([(1,4),(2,5),(3,6)])
+```
+"""
+@shorthands scatter
+
+"""
+    bar(x,y)
+    bar!(x,y)
+
+Make a bar plot of y vs x. 
+
+# Arguments 
+
+- $(_document_argument("bar_position"))
+- $(_document_argument("bar_width"))
+- $(_document_argument("bar_edges"))
+- $(_document_argument("orientation"))
+
+# Examples
+```julia-repl 
+julia> bar([1,2,3],[4,5,6],fillcolor=[:red,:green,:blue],fillalpha=[0.2,0.4,0.6])
+julia> bar([(1,4),(2,5),(3,6)])
+```
+"""
+@shorthands bar
+
+@shorthands barh
+
+"""
+    histogram(x)
+    histogram!(x)
+
+Plot a histogram.
+
+# Arguments 
+
+- `x`: AbstractVector of values to be binned
+- $(_document_argument("bins"))
+- `weights`: Vector of weights for the values in `x`, for weighted bin counts
+- $(_document_argument("normalize"))
+- $(_document_argument("bar_position"))
+- $(_document_argument("bar_width"))
+- $(_document_argument("bar_edges"))
+- $(_document_argument("orientation"))
+
+# Example
+```julia-repl 
+julia> histogram([1,2,1,1,4,3,8],bins=0:8)
+```
+"""
+@shorthands histogram
+
+"""
+    barhist(x)
+    barhist!(x)
+
+Make a histogram bar plot. See `histogram`. 
+"""
+@shorthands barhist
+
+"""
+    stephist(x)
+    stephist(x)
+
+Make a histogram step plot (bin counts are represented using horizontal lines
+instead of bars). See `histogram`. 
+"""
+@shorthands stephist
+
+"""
+    scatterhist(x)
+    scatterhist!(x)
+
+Make a histogram scatter plot (bin counts are represented using points 
+instead of bars). See `histogram`. 
+"""
+@shorthands scatterhist
+
+"""
+    histogram2d(x,y)
+    histogram2d!(x,y)
+
+Plot a two-dimensional histogram.
+
+# Arguments 
+
+- `bins`: Number of bins (if an `Integer`) or bin edges (if an `AbtractVector`) 
+- `weights`: Vector of weights for the values in `x`. Each entry of x contributes 
+             its weight to the height of its bin. 
+
+# Example
+```julia-repl 
+julia> histogram2d(randn(10_000),randn(10_000))
+```
+"""
+@shorthands histogram2d
+
+"""
+    density(x)
+    density!(x)
+
+Make a line plot of a kernel density estimate of x. 
+
+# Arguments
+
+- `x`: AbstractVector of samples for probability density estimation 
+
+# Example
+```julia-repl 
+julia> using StatPlots
+julia> density(randn(100_000))
+```
+"""
+@shorthands density
+
+"""
+    heatmap(x,y,z)
+    heatmap!(x,y,z)
+
+Plot a heatmap of the rectangular array `z`. 
+
+# Example
+```julia-repl 
+julia> heatmap(randn(10,10))
+```
+"""
+@shorthands heatmap
+@shorthands plots_heatmap
+
+"""
+    hexbin(x,y)
+    hexbin!(x,y)
+
+Make a hexagonal binning plot (a histogram of the observations `(x[i],y[i])` 
+with hexagonal bins)
+
+# Example
+```julia-repl
+julia> hexbin(randn(10_000), randn(10_000))
+```
+"""
+@shorthands hexbin
+
+"""
+    sticks(x,y)
+    sticks!(x,y)
+
+Draw a stick plot of y vs x. 
+
+# Example
+```julia-repl
+julia> sticks(1:10) 
+```
+"""
+@shorthands sticks
+
+"""
+    hline(y)
+    hline!(y)
+
+Draw horizontal lines at positions specified by the values in 
+the AbstractVector `y`
+
+# Example
+```julia-repl 
+julia> hline([-1,0,2])
+```
+"""
+@shorthands hline
+
+"""
+    vline(x)
+    vline!(x)
+
+Draw vertical lines at positions specified by the values in 
+the AbstractVector `x`
+
+# Example
+```julia-repl 
+julia> vline([-1,0,2])
+```
+"""
+@shorthands vline
+
+"""
+    hspan(y)
+
+Draw a rectangle between the horizontal line at position `y[1]` 
+and the horizontal line at position `y[2]`. If `length(y) ≥ 4`, 
+then further rectangles are drawn between `y[3]` and `y[4]`, 
+`y[5]` and `y[6]`, and so on. If `length(y)` is odd, then the 
+last entry of `y` is ignored. 
+# Example
+```julia-repl 
+julia> hspan(1:6)
+```
+"""
+@shorthands hspan
+
+"""
+    vspan(x)
+
+Draw a rectangle between the vertical line at position `x[1]` 
+and the vertical line at position `x[2]`. If `length(x) ≥ 4`, 
+then further rectangles are drawn between `x[3]` and `x[4]`, 
+`x[5]` and `x[6]`, and so on. If `length(x)` is odd, then the 
+last entry of `x` is ignored. 
+# Example
+```julia-repl 
+julia> vspan(1:6)
+```
+"""
+@shorthands vspan
+
+"""
+    ohlc(x,y::Vector{OHLC})
+    ohlc!(x,y::Vector{OHLC})
+
+Make open-high-low-close plot. Each entry of y is represented by a vertical 
+segment extending from the low value to the high value, with short horizontal 
+segments on the left and right indicating the open and close values, respectively. 
+
+# Example
+```julia-repl
+julia> meanprices = cumsum(randn(100))
+julia> y = OHLC[(p+rand(),p+1,p-1,p+rand()) for p in meanprices]
+julia> ohlc(y)
+```
+"""
+@shorthands ohlc
+
+
+"""
+    contour(x,y,z) 
+    contour!(x,y,z) 
+
+Draw contour lines of the `Surface` z. 
+
+# Arguments
+- `levels`: Contour levels (if `AbstractVector`) or number of levels (if `Integer`)
+- `fill`: Bool. Fill area between contours or draw contours only (false by default)
+
+# Example 
+```julia-repl
+julia> x = y = range(-20, 20, length = 100)
+julia> contour(x, y, (x, y) -> x^2 + y^2)
+```
+"""
+@shorthands contour
+
+"An alias for `contour` with fill = true."
+@shorthands contourf
+
+
+@shorthands contour3d
+
+"""
+    surface(x,y,z)
+    surface!(x,y,z)
+
+Draw a 3D surface plot. 
+
+# Example
+```julia-repl 
+julia> x = y = range(-3, 3, length = 100)
+julia> surface(x, y, (x, y) -> sinc(norm([x, y])))
+```
+"""
+@shorthands surface
+
+"""
+    wireframe(x,y,z)
+    wireframe!(x,y,z)
+
+Draw a 3D wireframe plot. 
+
+# Example
+```julia-repl 
+julia> wireframe(1:10,1:10,randn(10,10))
+```
+"""
+@shorthands wireframe
+
+"""
+    path3d(x,y,z)
+    path3d!(x,y,z)
+
+Plot a 3D path from `(x[1],y[1],z[1])` to `(x[2],y[2],z[2])`,
+..., to `(x[end],y[end],z[end])`. 
+
+# Example
+```julia-repl 
+julia> path3d([0,1,2,3],[0,1,4,9],[0,1,8,27])
+```
+"""
+@shorthands path3d
+
+"""
+    scatter3d(x,y,z)
+    scatter3d!(x,y,z)
+
+Make a 3D scatter plot. 
+
+# Example
+```julia-repl 
+julia> scatter3d([0,1,2,3],[0,1,4,9],[0,1,8,27])
+```
+"""
+@shorthands scatter3d
+
+"""
+    boxplot(x, y)
+    boxplot!(x, y)
+
+Make a box and whisker plot. 
+
+# Keyword arguments
+- `notch`: Bool. Notch the box plot? (false)
+- `range`: Real. Values more than range*IQR below the first quartile
+           or above the third quartile are shown as outliers (1.5) 
+- `outliers`: Bool. Show outliers? (true) 
+- `whisker_width`: Real or Symbol. Length of whiskers (:match) 
+
+# Example
+```julia-repl 
+julia> using StatPlots
+julia> boxplot(repeat([1,2,3],outer=100),randn(300))
+```
+"""
+@shorthands boxplot
+
+"""
+    violin(x,y,z)
+    violin!(x,y,z)
+
+Make a violin plot. 
+
+# Example
+```julia-repl 
+julia> violin(repeat([1,2,3],outer=100),randn(300))
+```
+"""
+@shorthands violin
+
+"""
+    quiver(x,y,quiver=(u,v))
+    quiver!(x,y,quiver=(u,v))
+
+Make a quiver (vector field) plot. The `i`th vector extends 
+from `(x[i],y[i])` to `(x[i] + u[i], y[i] + v[i])`. 
+
+# Example
+```julia-repl 
+julia> quiver([1,2,3],[3,2,1],quiver=([1,1,1],[1,2,3]))
+```
+"""
+@shorthands quiver
+
+"""
+    curves(x,y)
+    curves!(x,y)
+
+Draw a Bezier curve from `(x[1],y[1])` to `(x[end],y[end])` 
+with control points `(x[2],y[2]), ..., (x[end-1],y[end]-1)`
+
+# Example
+```julia-repl 
+julia> curves([1,2,3,4],[1,1,2,4])
+```
+"""
+@shorthands curves
+
+"Plot a pie diagram"
+pie(args...; kw...)        = plot(args...; kw...,  seriestype = :pie, aspect_ratio = :equal, grid=false, xticks=nothing, yticks=nothing)
+pie!(args...; kw...)       = plot!(args...; kw..., seriestype = :pie, aspect_ratio = :equal, grid=false, xticks=nothing, yticks=nothing)
+
+"Plot with seriestype :path3d"
+plot3d(args...; kw...)     = plot(args...; kw...,  seriestype = :path3d)
+plot3d!(args...; kw...)    = plot!(args...; kw..., seriestype = :path3d)
+
+"Add title to an existing plot"
+title!(s::AbstractString; kw...)                 = plot!(; title = s, kw...)
+
+"Add xlabel to an existing plot"
+xlabel!(s::AbstractString; kw...)                = plot!(; xlabel = s, kw...)
+
+"Add ylabel to an existing plot"
+ylabel!(s::AbstractString; kw...)                = plot!(; ylabel = s, kw...)
+
+"Set xlims for an existing plot"
+xlims!(lims::Tuple{T,S}; kw...) where {T<:Real,S<:Real} = plot!(; xlims = lims, kw...)
+
+"Set ylims for an existing plot"
+ylims!(lims::Tuple{T,S}; kw...) where {T<:Real,S<:Real} = plot!(; ylims = lims, kw...)
+
+"Set zlims for an existing plot"
+zlims!(lims::Tuple{T,S}; kw...) where {T<:Real,S<:Real} = plot!(; zlims = lims, kw...)
+
+xlims!(xmin::Real, xmax::Real; kw...)                     = plot!(; xlims = (xmin,xmax), kw...)
+ylims!(ymin::Real, ymax::Real; kw...)                     = plot!(; ylims = (ymin,ymax), kw...)
+zlims!(zmin::Real, zmax::Real; kw...)                     = plot!(; zlims = (zmin,zmax), kw...)
+
+
+"Set xticks for an existing plot"
+xticks!(v::TicksArgs; kw...) where {T<:Real}                       = plot!(; xticks = v, kw...)
+
+"Set yticks for an existing plot"
+yticks!(v::TicksArgs; kw...) where {T<:Real}                       = plot!(; yticks = v, kw...)
+
+xticks!(
+ticks::AVec{T}, labels::AVec{S}; kw...) where {T<:Real,S<:AbstractString}     = plot!(; xticks = (ticks,labels), kw...)
+yticks!(
+ticks::AVec{T}, labels::AVec{S}; kw...) where {T<:Real,S<:AbstractString}     = plot!(; yticks = (ticks,labels), kw...)
+
+"""
+    annotate!(anns...)
+
+Add annotations to an existing plot. 
+
+# Arguments 
+
+- `anns`: An `AbstractVector` of tuples of the form (x,y,text). The text object
+          can be an String or PlotText
+
+# Example
+```julia-repl
+julia> plot(1:10)
+julia> annotate!([(7,3,"(7,3)"),(3,7,text("hey", 14, :left, :top, :green))])
+```
+"""
+annotate!(anns...; kw...)                                        = plot!(; annotation = anns, kw...)
+annotate!(anns::AVec{T}; kw...) where {T<:Tuple}                 = plot!(; annotation = anns, kw...)
+
+"Flip the current plots' x axis"
+xflip!(flip::Bool = true; kw...)                          = plot!(; xflip = flip, kw...)
+
+"Flip the current plots' y axis"
+yflip!(flip::Bool = true; kw...)                          = plot!(; yflip = flip, kw...)
+
+"Specify x axis attributes for an existing plot"
+xaxis!(args...; kw...)                                    = plot!(; xaxis = args, kw...)
+
+"Specify x axis attributes for an existing plot"
+yaxis!(args...; kw...)                                    = plot!(; yaxis = args, kw...)
+xgrid!(args...; kw...)                                    = plot!(; xgrid = args, kw...)
+ygrid!(args...; kw...)                                    = plot!(; ygrid = args, kw...)

src/utils.jl

@@ -1199,3 +1199,37 @@ end
 function construct_categorical_data(x::AbstractArray, axis::Axis)
     map(xi -> axis[:discrete_values][searchsortedfirst(axis[:continuous_values], xi)], x)
 end
+
+_fmt_paragraph(paragraph::AbstractString;kwargs...) = _fmt_paragraph(IOBuffer(),paragraph,0;kwargs...)
+
+function _fmt_paragraph(io::IOBuffer,
+                        remaining_text::AbstractString,
+                        column_count::Integer;
+                        fillwidth=60,
+                        leadingspaces=0)
+
+    kwargs = (fillwidth = fillwidth, leadingspaces = leadingspaces) 
+    
+    m = match(r"(.*?) (.*)",remaining_text)
+    if isa(m,Nothing)
+        if column_count + length(remaining_text) ≤ fillwidth
+            print(io,remaining_text)
+            String(take!(io))
+        else
+            print(io,"\n"*" "^leadingspaces*remaining_text)
+            String(take!(io))
+        end
+    else
+        if column_count + length(m[1]) ≤ fillwidth
+            print(io,"$(m[1]) ")
+            _fmt_paragraph(io,m[2],column_count + length(m[1]) + 1;kwargs...)
+        else
+            print(io,"\n"*" "^leadingspaces*"$(m[1]) ")
+            _fmt_paragraph(io,m[2],leadingspaces;kwargs...)
+        end
+    end
+end
+
+function _document_argument(S::AbstractString)
+    _fmt_paragraph("`$S`: "*_arg_desc[Symbol(S)],leadingspaces = 6 + length(S))
+end