tweak to allowing space before :; do not strip linefeed after end of summary.

ldoc/markup.lua

@@ -76,7 +76,7 @@ function markup.add_sections(F, txt)
 end
 
 local function handle_reference (ldoc, name)
-   local qname,label = utils.splitv(name,':')
+   local qname,label = utils.splitv(name,'%s*:')
    if not qname then
       qname = name
    end

ldoc/parse.lua

@@ -41,7 +41,7 @@ local function extract_tags (s)
    if s:match '^%s*$' then return {} end
    local preamble,tag_items = parse_tags(s)
    local strip = tools.strip
-   local summary,description = preamble:match('^(.-[%.?])%s(.+)')
+   local summary,description = preamble:match('^(.-[%.?])(.+)')
    if not summary then summary = preamble end  --  and strip(description) ?
    local tags = {summary=summary and strip(summary),description=description}
    for _,item in ipairs(tag_items) do

tests/underscore.lua

@@ -20,7 +20,7 @@ Indented code blocks may also follow immediately.
 
 ----------
 -- A function.
--- Can also use @{_TWO_}
+-- Can also use @{_TWO_ :second function}
 function _ONE_() end
 
 -----------