Fix \bf and \frak symbols in md2tex. Improves #181

src/format.jl

@@ -238,14 +238,31 @@ end
 function uc2tex(s, escape=false)
     for key in keys(latex_symbols)
         if escape
-            s = replace(s, latex_symbols[key] => "(*@\\ensuremath{$key}@*)")
+            s = replace(s, latex_symbols[key] => "(*@\\ensuremath{$(texify(key))}@*)")
         else
-            s = replace(s, latex_symbols[key] => "\\ensuremath{$key}")
+            s = replace(s, latex_symbols[key] => "\\ensuremath{$(texify(key))}")
         end
     end
     return s
 end
 
+# Make julia symbols (\bf* etc.) valid latex
+function texify(s)
+    ts = ""
+    if occursin(r"^\\bf[A-Z]$", s)
+        ts = replace(s, "\\bf" => "\\bm{\\mathrm{") * "}}"
+    elseif startswith(s, "\\bfrak")
+        ts = replace(s, "\\bfrak" => "\\bm{\\mathfrak{") * "}}"
+    elseif startswith(s, "\\bf")
+        ts = replace(s, "\\bf" => "\\bm{\\") * "}"
+    elseif startswith(s, "\\frak")
+        ts = replace(s, "\\frak" => "\\mathfrak{") * "}"
+    else
+        ts = s
+    end
+    return ts
+end
+
 function format_code(result::AbstractString, docformat::JMarkdown2HTML)
   return highlight(MIME("text/html"), strip(result),
     Highlights.Lexers.JuliaLexer, docformat.formatdict[:theme])

templates/julia_tex.tpl

@@ -3,6 +3,7 @@
 \usepackage[a4paper,text={16.5cm,25.2cm},centering]{geometry}
 \usepackage{lmodern}
 \usepackage{amssymb,amsmath}
+\usepackage{bm}
 \usepackage{graphicx}
 \usepackage{microtype}
 \usepackage{hyperref}

test/formatter_test.jl

@@ -94,3 +94,8 @@ wcows = Weave.wrapline(cows)
 @test wcows == testcows
 @test length(split(wcows, "\n")[1]) == 75
 @test length(split(wcows, "\n")[2]) == 25
+
+
+tfied = "\\ensuremath{\\bm{\\mathrm{L}}} \\ensuremath{\\bm{\\mathfrak{F}}} \\ensuremath{\\bm{\\iota}} \\ensuremath{\\mathfrak{A}} \\ensuremath{\\bm{\\varTheta}}"
+
+@test Weave.uc2tex("𝐋 𝕱 𝛊 𝔄 𝚹") == tfied