Merge pull request #306 from Delapouite/arrow

feat(conceal): add arrow_function option

Author: davidchambers

README.md

@@ -67,15 +67,16 @@ Default Value: 0
 You can customize concealing characters by defining one or more of the following
 variables:
 
-    let g:javascript_conceal_function   = "ƒ"
-    let g:javascript_conceal_null       = "ø"
-    let g:javascript_conceal_this       = "@"
-    let g:javascript_conceal_return     = "⇚"
-    let g:javascript_conceal_undefined  = "¿"
-    let g:javascript_conceal_NaN        = "ℕ"
-    let g:javascript_conceal_prototype  = "¶"
-    let g:javascript_conceal_static     = "•"
-    let g:javascript_conceal_super      = "Ω"
+    let g:javascript_conceal_function       = "ƒ"
+    let g:javascript_conceal_null           = "ø"
+    let g:javascript_conceal_this           = "@"
+    let g:javascript_conceal_return         = "⇚"
+    let g:javascript_conceal_undefined      = "¿"
+    let g:javascript_conceal_NaN            = "ℕ"
+    let g:javascript_conceal_prototype      = "¶"
+    let g:javascript_conceal_static         = "•"
+    let g:javascript_conceal_super          = "Ω"
+    let g:javascript_conceal_arrow_function = "⇒"
 
 ## Contributing
 

syntax/javascript.vim

@@ -221,7 +221,7 @@ syntax region  jsFuncArgs       contained matchgroup=jsFuncParens start='(' end=
 syntax match   jsFuncArgCommas  contained ','
 syntax match   jsFuncArgRest    contained /\%(\.\.\.[a-zA-Z_$][0-9a-zA-Z_$]*\))/
 
-syntax match jsArrowFunction /=>/
+exe 'syntax match jsArrowFunction /=>/ '.(exists('g:javascript_conceal_arrow_function') ? 'conceal cchar='.g:javascript_conceal_arrow_function : '')
 
 " Define the default highlighting.
 " For version 5.7 and earlier: only when not done already