Refactor http result syntax highlights

Author: udayvir-singh

lua/rest-nvim/curl/init.lua

@@ -95,6 +95,9 @@ local function create_callback(method, url)
       res.body = vim.fn.system(formatter, res.body):gsub("\n$", "")
     end
 
+    -- append response container
+    res.body = "#+RESPONSE\n" .. res.body .. "\n#+END"
+
     local lines = utils.split(res.body, "\n")
     local line_count = vim.api.nvim_buf_line_count(res_bufnr) - 1
     vim.api.nvim_buf_set_lines(res_bufnr, line_count, line_count + #lines, false, lines)
@@ -117,22 +120,16 @@ local function create_callback(method, url)
     utils.move_cursor(res_bufnr, 1)
 
     -- add syntax highlights for response
-    if content_type == "json" then
-      vim.cmd([[
-        unlet b:current_syntax
-        syn include @json syntax/json.vim
-        syn region jsonBody start="\v\{" end="\v\}$" contains=@json
+    local syntax_file = vim.fn.expand(string.format("$VIMRUNTIME/syntax/%s.vim", content_type))
 
-        let b:current_syntax = "httpResult"
-      ]])
-    elseif content_type == "html" then
-      vim.cmd([[
+    if vim.fn.filereadable(syntax_file) == 1 then
+      vim.cmd(string.gsub([[
         unlet b:current_syntax
-        syn include @html syntax/html.vim
-        syn region htmlBody start=+<html.*>+ end=+<\/ *html>+ contains=@html
+        syn include @%s syntax/%s.vim
+        syn region %sBody matchgroup=Comment start=+\v^#\+RESPONSE$+ end=+\v^#\+END$+ contains=@%s
 
         let b:current_syntax = "httpResult"
-      ]])
+      ]], "%%s",content_type))
     end
   end
 end
@@ -165,7 +162,7 @@ M.curl_cmd = function(opts)
       vim.cmd("let @+=" .. string.format("%q", curl_cmd))
     end
 
-    log.debug("[rest.nvim] Request preview:\n" .. curl_cmd)
+    vim.api.nvim_echo({{"[rest.nvim] Request preview:\n", "Comment"}, {curl_cmd}}, false, {})
     return
   else
     opts.callback = vim.schedule_wrap(create_callback(opts.method, opts.url))

syntax/httpResult.vim

@@ -4,19 +4,19 @@ syn match   httpResultComment "\v^#.*$"
 syn keyword httpResultTitle GET POST PATCH PUT HEAD DELETE nextgroup=httpResultPath
 syn match   httpResultPat  /.*$/ contained
 
-syn match   httpResultField /^\(\w\)[^:]\+:/he=e-1
-syn region  httpResultDateField start=+^[Dd]ate:+he=e-1 end=+ + nextgroup=httpResultDate
-syn region  httpResultDateField start=+^[Ee]xpires:+he=e-1 end=+ + nextgroup=httpResultDate
-syn match   httpResultDate /.*$/ contained
+syn match httpResultField /^\(\w\)[^:]\+:/he=e-1
+syn match httpResultDateField /^[Dd]ate:/he=e-1    nextgroup=httpResultDate
+syn match httpResultDateField /^[Ee]xpires:/he=e-1 nextgroup=httpResultDate
+syn match httpResultDate /.*$/ contained
 
 syn region httpResultHeader start=+^HTTP/+ end=+ + nextgroup=httpResult200,httpResult300,httpResult400,httpResult500
-syn match  httpResult200 /2.*$/ contained
-syn match  httpResult300 /3.*$/ contained
-syn match  httpResult400 /4.*$/ contained
-syn match  httpResult500 /5.*$/ contained
+syn match  httpResult200 /2\d\d.*$/ contained
+syn match  httpResult300 /3\d\d.*$/ contained
+syn match  httpResult400 /4\d\d.*$/ contained
+syn match  httpResult500 /5\d\d.*$/ contained
 
 syn region httpResultString start=/\vr?"/ end=/\v"/
-syn match  httpResultNumber /\v[ =]@1<=\d+[ \n]/
+syn match  httpResultNumber /\v[ =]@1<=[0-9]*.?[0-9]+[ ,;&\n]/he=e-1
 
 hi link httpResultComment   Comment
 hi link httpResultTitle     Type