1 files changed, 86 insertions, 0 deletions
diff --git a/syntax/ddoc.vim b/syntax/ddoc.vim
new file mode 100644
index 00000000..3c2860d8
--- /dev/null
+++ b/syntax/ddoc.vim
@@ -0,0 +1,86 @@
+if exists('g:polyglot_disabled') && index(g:polyglot_disabled, 'dlang') != -1
+  finish
+endif
+
+if &filetype == "ddoc"
+    "ddoc file type
+    " Quit when a syntax file was already loaded
+    if exists("b:current_syntax")
+      finish
+    endif
+
+    " Support cpoptions
+    let s:cpo_save = &cpo
+    set cpo&vim
+
+    " Set the current syntax to be known as ddoc
+    let b:current_syntax = "ddoc"
+
+    syn match ddocIdentifier     "\$(\zs\a\w*\ze\_W*"    display conceal contained
+    syn match ddocIdentifierDecl "^\s*\zs\a\w*\ze\s*=" display contained
+    syn region ddocDecl start="^\s*\a\w*\s*=" end="\(\n\_^\s*\_$\|\n^\s*\a\w*\s*=\)" transparent fold contains=ddocIdentifierDecl,ddocIdentifier
+
+    "use html comment when fold method is marker
+    set commentstring=<!--%s-->
+
+    hi! def link ddocIdentifier       Macro
+    hi! def link ddocIdentifierDecl   Macro
+
+    let &cpo = s:cpo_save
+    unlet s:cpo_save
+
+elseif &filetype == "dd" || &filetype == "d" && getline(1) =~ "^Ddoc"
+    "Ddoc source file or .d File begining with Ddoc
+    " Quit when a syntax file was already loaded
+    if exists("b:current_syntax")
+      finish
+    endif
+
+    " Support cpoptions
+    let s:cpo_save = &cpo
+    set cpo&vim
+    " Set the current syntax to be known as ddoc
+    let b:current_syntax = "ddoc"
+
+    syn match ddocKeyword        "\%^Ddoc"               display
+    syn keyword ddocKeyword      MACROS                  contained
+    syn match ddocIdentifier     "\$(\zs\a\w*\ze\_W*"    display conceal
+    syn match ddocIdentifierDecl "^\s*\zs\a\w*\ze\s*="   display contained
+    "can slow down to much
+    "syn match ddocIdentifierDecl "\(^\s*MACROS:\s\+\)\@<=\zs\a\w*\ze\s*=" display contained
+    syn region ddocDecl    start="^\s*MACROS:\_s\+" end="\%$" transparent fold contains=ddocKeyword,ddocIdentifierDecl,ddocIdentifier
+
+    "use html comment when fold method is marker
+    set commentstring=<!--%s-->
+
+    " highlight only ddoc Identifiers
+    hi! def link ddocIdentifier       Macro
+    hi! def link ddocIdentifierDecl   Macro
+    hi! def link ddocKeyword          Macro
+    let &cpo = s:cpo_save
+    unlet s:cpo_save
+    finish
+elseif &filetype == "d"
+    "Ddoc inside comments
+    syn keyword ddocKeyword            MACROS                      contained
+    syn match ddocIdentifier           "\$(\zs\a\w*\ze\_W*"        display contained conceal containedin=@ddocComment
+
+    syn match ddocIdentifierBlockDecl  "^\*\=\s*\a\w*\ze\s*=" display contained
+    "can slow down to much
+    "syn match ddocIdentifierBlockDecl "\(^*\=\s*MACROS:\s\+\)\@<=\zs\a\w*\ze\s*="     display contained
+
+    syn region ddocBlockDecl start="^\*\=\s*\zsMACROS:\_s\+" end="\ze\*/" transparent fold contained containedin=ddocBlockComment  contains=ddocKeyword,ddocIdentifierBlockDecl,ddocIdentifier
+
+    syn match ddocIdentifierNestedDecl "^+\=\s*\a\w*\ze\s*="  display contained
+    "can slow down to much
+    "syn match ddocIdentifierNestedDecl "\(^+\=\s*MACROS:\s\+\)\@<=\zs\a\w*\ze\s*="     display contained
+
+    syn region ddocNestedDecl start="^+\=\s*\zsMACROS:\_s\+" end="\ze+/"  transparent fold contained containedin=ddocNestedComment contains=ddocKeyword,ddocIdentifierNestedDecl,ddocIdentifier
+
+    "reset to default commentstring
+    set commentstring=/*%s*/
+    hi! def link ddocIdentifier            Macro
+    hi! def link ddocIdentifierBlockDecl   Macro
+    hi! def link ddocIdentifierNestedDecl  Macro
+    hi! def link ddocKeyword               Macro
+endif