addresses issue #986

src/Franklin.jl

@@ -189,6 +189,26 @@ include("parser/latex/blocks.jl")
 include("parser/html/tokens.jl")
 include("parser/html/blocks.jl")
 
+function enable_pmath()
+    a = isexactly("\\(") => :MATH_P_OPEN
+    b = isexactly("\\)") => :MATH_P_CLOSE
+    t = MD_TOKENS['\\']
+    a in t || push!(t, a)
+    b in t || push!(t, b)
+    c = OCProto(:MATH_P, :MATH_P_OPEN, (:MATH_P_CLOSE,))
+    c in MD_OCB_MATH || push!(MD_OCB_MATH, c)
+    return
+end
+function disable_pmath()
+    a = isexactly("\\(") => :MATH_P_OPEN
+    b = isexactly("\\)") => :MATH_P_CLOSE
+    t = MD_TOKENS['\\']
+    c = [e for e in t if !(e in (a, b))]
+    empty!(t)
+    append!(t, c)
+    return
+end
+
 # EVAL
 include("eval/module.jl")
 include("eval/run.jl")

src/converter/markdown/blocks.jl

@@ -57,6 +57,7 @@ the front and the back (`\$` sign).
 """
 const MATH_BLOCKS_PARENS = LittleDict{Symbol, Tuple{Int,Int,String,String}}(
     :MATH_A     => ( 1,  1, "\\(", "\\)"),
+    :MATH_P     => ( 2,  2, "\\(", "\\)"),
     :MATH_B     => ( 2,  2, "\\[", "\\]"),
     :MATH_C     => ( 2,  2, "\\[", "\\]"),
     :MATH_I     => ( 4,  4, "", "")
@@ -80,7 +81,7 @@ function convert_math_block(β::OCBlock, lxdefs::Vector{LxDef})::String
     # if the math block is a "display" one (with a number)
     inner = chop(β.ss, head=pm[1], tail=pm[2])
     htmls = IOBuffer()
-    if β.name ∉ [:MATH_A, :MATH_I]
+    if β.name ∉ [:MATH_A, :MATH_P, :MATH_I]
         # NOTE: in the future if allow equation tags, then will need an `if`
         # here and only increment if there's no tag. For now just use numbers.
 

src/parser/markdown/tokens.jl

@@ -242,14 +242,18 @@ const MD_OCB_IGNORE = (:COMMENT, :MD_DEF)
 
 List of names of maths environments (display mode).
 """
-const MATH_DISPLAY_BLOCKS_NAMES = collect(e.name for e ∈ MD_OCB_MATH if e.name != :MATH_A)
+const MATH_DISPLAY_BLOCKS_NAMES = collect(
+    e.name for e ∈ MD_OCB_MATH if !(e.name  in (:MATH_A, :MATH_P))
+)
 
 """
     MATH_BLOCKS_NAMES
 
 List of names of all maths environments.
 """
-const MATH_BLOCKS_NAMES = tuple(:MATH_A, MATH_DISPLAY_BLOCKS_NAMES...)
+const MATH_BLOCKS_NAMES = tuple(
+    :MATH_A, :MATH_P, MATH_DISPLAY_BLOCKS_NAMES...
+)
 
 """
 CODE_BLOCKS_NAMES