XeLaTeX support (#291)

* XeLaTeX support
KristofferC · May 10, 2022 · a03ac8e · a03ac8e
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diff --git a/docs/src/man/save.md b/docs/src/man/save.md
@@ -57,8 +57,8 @@ PGFPlotsX.CLASS_OPTIONS
 
 ## Choosing the LaTeX engine used
 
-Thee are two different choices for latex engines, `PDFLATEX`, `LUALATEX`.
-By default, `LUALATEX` is used if it was available during `Pkg.build()`. The active engine can be retrieved with the `latexengine()` function and be set with `latexengine!(engine)` where `engine` is one of the two previously mentioned engines (e.g. `PGFPlotsX.PDFLATEX`).
+Thee are three different choices for latex engines, `PDFLATEX`, `LUALATEX` and `XELATEX`.
+By default, `LUALATEX` is used if it was available during `Pkg.build()`. The active engine can be retrieved with the `latexengine()` function and be set with `latexengine!(engine)` where `engine` is one of the three previously mentioned engines (i.e. `PGFPlotsX.PDFLATEX` or `PGFPlotsX.XELATEX`).
 
 ## Custom flags
 

diff --git a/src/build.jl b/src/build.jl
@@ -1,23 +1,23 @@
 ################
 # LaTeX-engine #
 ################
-@enum(LaTeXEngine, LUALATEX, PDFLATEX)
+@enum(LaTeXEngine, LUALATEX, PDFLATEX, XELATEX)
 
 """
 The active LaTeX engine. Initialized the first time [`latexengine`](@ref) is called.
 """
 const ACTIVE_LATEX_ENGINE = Ref{Union{Nothing, LaTeXEngine}}(nothing)
 function latexengine()
     if ACTIVE_LATEX_ENGINE[] === nothing
-        for (engine, enum) in zip(("lualatex", "pdflatex"), (LUALATEX, PDFLATEX))
+        for (engine, enum) in zip(("lualatex", "pdflatex", "xelatex"), (LUALATEX, PDFLATEX, XELATEX))
             @debug "latexengine: looking for latex engine $engine"
             if Sys.which(engine) !== nothing
                 @debug "latexengine: found latex engine $engine, using it"
                 return ACTIVE_LATEX_ENGINE[] = enum
             end
         end
         throw(MissingExternalProgramError("No LaTeX installation found, figures will not be generated. ",
-                                          "Make sure either pdflatex or lualatex are installed and that ",
+                                          "Make sure either pdflatex, xelatex or lualatex are installed and that ",
                                           "the PATH variable is correctly set."))
     end
     return ACTIVE_LATEX_ENGINE[]