misc: add support for FFI with Java and C++ to vim syntax

[nit.git] / misc / vim / syntax / nit.vim

diff --git a/misc/vim/syntax/nit.vim b/misc/vim/syntax/nit.vim
index 899dc7d..76db35d 100644 (file)
--- a/misc/vim/syntax/nit.vim
+++ b/misc/vim/syntax/nit.vim
@@ -18,14 +18,23 @@
 " See the License for the specific language governing permissions and
 " limitations under the License.
 
-if exists("b:current_syntax")
-       finish
+if !exists("main_syntax")
+  if version < 600
+    syntax clear
+  elseif exists("b:current_syntax")
+    finish
+  endif
+  " we define it here so that included files can test for it
+  let main_syntax='nit'
 endif
 
 " Expression Substitution and Backslash Notation
 syn match NITExprSubstError "{\|}" contained
 syn match NITExprSubst "\\." contained
-syn match NITExprSubst "{[^}]*}" contained
+syn match NITExprSubst "{\([^}]\|\n\)*}" contained
+
+syn match NITExprSubstLong "\\." contained
+syn match NITExprSubstLong "{*\zs{{{\([^}]\|\n\)*}}}\ze}*" contained
 
 " Numbers and ASCII Codes
 syn match NITNumber "\<\(\d\+\.\d\+\|\d\+\)\>"
@@ -36,6 +45,7 @@ syn match NITAttribute                "\<_\h\w*"
 
 " Literal strings
 syn region NITString matchgroup=NITStringDelimit start="\"" end="\"" skip="\\\\\|\\\"" contains=NITExprSubst,NITExprSubstError
+syn region NITString matchgroup=NITStringDelimit start="\"\"\"" end="\"*\zs\"\"\"" skip="\\\\\|\\\"" contains=NITExprSubstLong
 syn region NITString matchgroup=NITStringDelimit start="'"  end="'"  skip="\\\\\|\\'"
 
 " Labels
@@ -53,7 +63,7 @@ syn match Error "\<end\>"
 
 " Declarations, definitions and blocks
 syn region NITModuleDecl matchgroup=NITDefine start="\<\(import\|module\|package\)\>\s*" matchgroup=NONE end="\ze\(\s\|:\|(\|$\)"  oneline
-syn region NITClassBlock matchgroup=NITDefine start="\<\(class\|enum\|universal\|interface\)\>" matchgroup=NITDefine end="\<end\>" contains=ALL fold
+syn region NITClassBlock matchgroup=NITDefine start="\<\(class\|enum\|universal\|interface\|extern\)\>" matchgroup=NITDefine end="\<end\>" contains=ALL fold
 syn region NITFunctionDecl matchgroup=NITDefine start="\<fun\>\s*" matchgroup=NONE end="\ze\(\<do\>\|\s\|:\|(\|$\)"  oneline
 syn region NITTypeDecl matchgroup=NITDefine start="\<type\>\s*" matchgroup=NONE end="\ze\(\<do\>\|\s\|:\|(\|$\)"  oneline contained containedin=NITClassBlock
 syn region NITAttrDecl matchgroup=NITDefine start="\<var\>\s*\ze_" matchgroup=NONE end="\ze\(\<do\>\|\s\|:\|(\|$\)"  oneline contained containedin=NITClassBlock
@@ -73,7 +83,7 @@ syn match  NITSharpBang       "\%^#!.*"
 syn match  NITComment  "#.*" contains=NITTodo
 
 " Keywords
-syn keyword NITKeyword  is abstract intern extern new
+syn keyword NITKeyword  is abstract intern new
 syn keyword NITDefine   private public protected intrude readable writable redef
 syn keyword NITControl   if while for assert and or in as isa once break continue return abort
 syn keyword NITClass     nullable
@@ -105,9 +115,40 @@ hi def link NITKeyword                     Keyword
 hi def link NITString                  String
 hi def link NITStringDelimit           Delimiter
 hi def link NITExprSubst               Special
+hi def link NITExprSubstLong           Special
 hi def link NITExprSubstError          Error
 
 hi def link NITComment                 Comment
 hi def link NITTodo                    Todo
 
+" FFI Section
+syn match NITFFIDelimiters "\<\(`{\|`}\)\>"
+hi def link NITFFIDelimiters           Keyword
+
+" FFI Python
+syntax include @FFIPython syntax/python.vim
+unlet b:current_syntax
+syn match NITFFILanguage       '"Python"' nextgroup=NITFFIBlockPython skipwhite
+syn region NITFFIBlockPython matchgroup=NITFFI start='`{' matchgroup=NITFFI end='`}' keepend fold contains=@FFIPython
+
+" FFI Java
+syntax include @FFIJava syntax/java.vim
+unlet b:current_syntax
+syn match NITFFILanguage       '"Java"' nextgroup=NITFFIBlockJava skipwhite
+syn region NITFFIBlockJava matchgroup=NITFFI start='`{' matchgroup=NITFFI end='`}' keepend fold contains=@FFIJava
+
+" FFI C++
+syntax include @FFICpp syntax/cpp.vim
+unlet b:current_syntax
+syn match NITFFILanguage       '"C++"' nextgroup=NITFFIBlockCpp skipwhite
+syn region NITFFIBlockCpp matchgroup=NITFFI start='`{' matchgroup=NITFFI end='`}' keepend fold contains=@FFICpp
+
+" FFI C (the last one is the default)
+syntax include @FFIC syntax/c.vim
+unlet b:current_syntax
+syn match NITFFILanguage               '"C\(\| header\| body\)"'       nextgroup=NITFFIBlockC skipwhite
+syn region NITFFIBlockC matchgroup=NITFFI start='`{' matchgroup=NITFFI end='`}' keepend fold contains=@FFIC
+
+hi def link NITFFILanguage             Define
+
 let b:current_syntax = "Nit"