Replace ``x``-math with $x$-math for notebooks, fixes #116.

CHANGELOG.md

@@ -6,6 +6,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+### Changed
+- "Markdown stdlib-style" inline math (e.g. ``` ``f(x) = x^2`` ```) is now replaced with
+  "notebook style" math (`$f(x) = x^2$`) for notebook output. This is already the case for
+  display math (```` ```math ````). ([#116][github-116], [#190][github-190])
 ### Fixed
 - Lines with trailing `#hide` are not shown in output of Markdown execution with Documenter
   flavour. ([#188][github-188])
@@ -163,6 +167,7 @@ https://discourse.julialang.org/t/ann-literate-jl/10651 for release announcement
 [dc409d0]: https://github.com/fredrikekre/Literate.jl/commit/dc409d0f43a6282bee4e28e8e12bb6309942e5d5
 [ceff7a3]: https://github.com/fredrikekre/Literate.jl/commit/ceff7a36be2a9152d853257bac97be00d915ba8e
 
+[github-116]: https://github.com/fredrikekre/Literate.jl/issues/116
 [github-144]: https://github.com/fredrikekre/Literate.jl/issues/144
 [github-145]: https://github.com/fredrikekre/Literate.jl/pull/145
 [github-146]: https://github.com/fredrikekre/Literate.jl/pull/146
@@ -186,6 +191,7 @@ https://discourse.julialang.org/t/ann-literate-jl/10651 for release announcement
 [github-185]: https://github.com/fredrikekre/Literate.jl/issues/185
 [github-186]: https://github.com/fredrikekre/Literate.jl/pull/186
 [github-187]: https://github.com/fredrikekre/Literate.jl/pull/187
+[github-190]: https://github.com/fredrikekre/Literate.jl/pull/190
 
 [Unreleased]: https://github.com/fredrikekre/Literate.jl/compare/v2.12.1...HEAD
 [2.12.1]: https://github.com/fredrikekre/Literate.jl/compare/v2.12.0...v2.12.1

src/Literate.jl

@@ -173,7 +173,7 @@ function replace_default(content, sym;
 
     if sym === :md
         push!(repls, r"^#(md|!nb|!jl) "m => "")    # remove leading #md, #!nb, and #!jl
-        push!(repls, r" #(md|!nb|!jl)$"m => "")     # remove trailing #md, #!nb, and #!jl
+        push!(repls, r" #(md|!nb|!jl)$"m => "")    # remove trailing #md, #!nb, and #!jl
         push!(repls, r"^#(!md|nb|jl).*\n?"m => "") # remove leading #!md, #nb and #jl lines
         push!(repls, r".*#(!md|nb|jl)$\n?"m => "") # remove trailing #!md, #nb, and #jl lines
     elseif sym === :nb
@@ -181,7 +181,9 @@ function replace_default(content, sym;
         push!(repls, r" #(!md|nb|!jl)$"m => "")    # remove trailing #!md, #nb, and #!jl
         push!(repls, r"^#(md|!nb|jl).*\n?"m => "") # remove leading #md, #!nb and #jl lines
         push!(repls, r".*#(md|!nb|jl)$\n?"m => "") # remove trailing #md, #!nb, and #jl lines
+        # Replace Markdown stdlib math environments
         push!(repls, r"```math(.*?)```"s => s"$$\1$$")
+        push!(repls, r"(?<!`)``([^`]+?)``(?!`)" => s"$\1$")
     else # sym === :jl
         push!(repls, r"^#(!md|!nb|jl) "m => "")    # remove leading #!md, #!nb, and #jl
         push!(repls, r" #(!md|!nb|jl)$"m => "")    # remove trailing #!md, #!nb, and #jl
@@ -193,7 +195,6 @@ function replace_default(content, sym;
     push!(repls, "@__NAME__" => config["name"]::String)
 
     # fix links
-
     if get(ENV, "DOCUMENTATIONGENERATOR", "") == "true"
         ## DocumentationGenerator.jl
         base_url = get(ENV, "DOCUMENTATIONGENERATOR_BASE_URL", "DOCUMENTATIONGENERATOR_BASE_URL")

test/runtests.jl

@@ -221,7 +221,8 @@ content = """
     ## PLACEHOLDER3
     ## PLACEHOLDER4
 
-    # Some math:
+    # Some inline math: ``\\frac{df}{dx}``, some multiline inline math: ``y =
+    # kx + m``, and some display math:
     # ```math
     # \\int f(x) dx
     # ```
@@ -580,7 +581,8 @@ end end
             # PLACEHOLDER4
             ````
 
-            Some math:
+            Some inline math: ``\\frac{df}{dx}``, some multiline inline math: ``y =
+            kx + m``, and some display math:
             ```math
             \\int f(x) dx
             ```
@@ -994,7 +996,8 @@ end end
 
             """
                "source": [
-                "Some math:\\n",
+                "Some inline math: \$\\\\frac{df}{dx}\$, some multiline inline math: \$y =\\n",
+                "kx + m\$, and some display math:\\n",
                 "\$\$\\n",
                 "\\\\int f(x) dx\\n",
                 "\$\$"