fallback to toggle-line-comment and vice versa if needed

data/plugins/language_c.lua

@@ -5,7 +5,7 @@ syntax.add {
   name = "C",
   files = { "%.c$", "%.h$", "%.inl$" },
   comment = "//",
-  multiline_comment = { "/*", "*/" },
+  block_comment = { "/*", "*/" },
   patterns = {
     { pattern = "//.-\n",                type = "comment" },
     { pattern = { "/%*", "%*/" },        type = "comment" },

data/plugins/language_cpp.lua

@@ -10,7 +10,7 @@ syntax.add {
     "%.c++$", "%.hh$", "%.H$", "%.hxx$", "%.hpp$", "%.h++$"
   },
   comment = "//",
-  multiline_comment = { "/*", "*/" },
+  block_comment = { "/*", "*/" },
   patterns = {
     { pattern = "//.-\n",                   type = "comment" },
     { pattern = { "/%*", "%*/" },           type = "comment" },

data/plugins/language_css.lua

@@ -4,7 +4,7 @@ local syntax = require "core.syntax"
 syntax.add {
   name = "CSS",
   files = { "%.css$" },
-  multiline_comment = { "/*", "*/" },
+  block_comment = { "/*", "*/" },
   patterns = {
     { pattern = "\\.",                type = "normal"   },
     { pattern = "//.-\n",             type = "comment"  },

data/plugins/language_html.lua

@@ -4,7 +4,7 @@ local syntax = require "core.syntax"
 syntax.add {
   name = "HTML",
   files = { "%.html?$" },
-  multiline_comment = { "<!--", "-->" },
+  block_comment = { "<!--", "-->" },
   patterns = {
     {
       pattern = {

data/plugins/language_js.lua

@@ -5,7 +5,7 @@ syntax.add {
   name = "JavaScript",
   files = { "%.js$", "%.json$", "%.cson$" },
   comment = "//",
-  multiline_comment = { "/*", "*/" },
+  block_comment = { "/*", "*/" },
   patterns = {
     { pattern = "//.-\n",               type = "comment"  },
     { pattern = { "/%*", "%*/" },       type = "comment"  },

data/plugins/language_lua.lua

@@ -6,7 +6,7 @@ syntax.add {
   files = "%.lua$",
   headers = "^#!.*[ /]lua",
   comment = "--",
-  multiline_comment = { "--[[", "]]" },
+  block_comment = { "--[[", "]]" },
   patterns = {
     { pattern = { '"', '"', '\\' },          type = "string" },
     { pattern = { "'", "'", '\\' },          type = "string" },

data/plugins/language_xml.lua

@@ -5,7 +5,7 @@ syntax.add {
   name = "XML",
   files = { "%.xml$" },
   headers = "<%?xml",
-  multiline_comment = { "<!--", "-->" },
+  block_comment = { "<!--", "-->" },
   patterns = {
     { pattern = { "<!%-%-", "%-%->" },     type = "comment"  },
     { pattern = { '%f[^>][^<]', '%f[<]' }, type = "normal"   },