mirrors/prosody
1
0
Fork 0
mirror of https://github.com/bjc/prosody.git synced 2025-04-03 21:27:38 +03:00
Code Issues Projects Releases Packages Wiki Activity Actions

util.xtemplate: Adopt {-path-} syntax to strip preceding and/or trailing whitespace

Browse source 
Seen in some other template languages
This commit is contained in:
Kim Alvefur 2023-12-09 14:57:41 +01:00
parent 48f26f9b98
commit c61c78447b
2 changed files with 24 additions and 8 deletions
Download patch file Download diff file Expand all files Collapse all files

16
util/xtemplate.lua
View file

@ -8,8 +8,16 @@ local st = require("prosody.util.stanza");
local function render(template, root, escape, filters)
escape = escape or st.xml_escape;
return (s_gsub(template, "%b{}", function(block)
return (s_gsub(template, "(%s*)(%b{})(%s*)", function(pre_blank, block, post_blank)
local inner = s_sub(block, 2, -2);
if inner:sub(1, 1) == "-" then
pre_blank = "";
inner = inner:sub(2);
end
if inner:sub(-1, -1) == "-" then
post_blank = "";
inner = inner:sub(1, -2);
end
local path, pipe, pos = s_match(inner, "^([^|]+)(|?)()");
if not (type(path) == "string") then return end
local value
@ -74,12 +82,12 @@ local function render(template, root, escape, filters)
if type(value) == "string" then
if not is_escaped then value = escape(value); end
return value
return pre_blank .. value .. post_blank
elseif st.is_stanza(value) then
value = value:get_text();
if value then return escape(value) end
if value then return pre_blank .. escape(value) .. post_blank end
end
return ""
return pre_blank .. post_blank
end))
end