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Copy pathhtml.lua
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230 lines (204 loc) · 7.52 KB
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------ generating HTML output ---------
-- Although this can be generalized for outputting any format, since the template
-- is language-agnostic, this implementation concentrates on HTML.
-- This does the actual generation of HTML, and provides support functions in the ldoc
-- table for the template
--
-- A fair amount of the complexity comes from operating in two basic modes; first, where
-- there is a number of modules (classic LuaDoc) or otherwise, where there is only one
-- module and the index contains the documentation for that module.
--
-- Like LuaDoc, LDoc puts similar kinds of documentation files in their own directories.
-- So module docs go into 'modules/', scripts go into 'scripts/', and so forth. LDoc
-- generalizes the idea of these project-level categories and in fact custom categories
-- can be created (refered to as 'kinds' in the code)
local List = require 'pl.List'
local utils = require 'pl.utils'
local path = require 'pl.path'
local stringx = require 'pl.stringx'
local template = require 'pl.template'
local tools = require 'ldoc.tools'
local markup = require 'ldoc.markup'
local doc = require 'ldoc.doc'
local html = {}
local quit = utils.quit
local function cleanup_whitespaces(text)
local lines = stringx.splitlines(text)
for i = 1, #lines do
lines[i] = stringx.rstrip(lines[i])
end
lines[#lines + 1] = "" -- Little trick: file should end with newline
return table.concat(lines, "\n")
end
local function get_module_info(m)
local info = {}
for tag in doc.module_info_tags() do
local val = m.tags[tag]
if type(val)=='table' then
val = table.concat(val,',')
end
tag = stringx.title(tag)
info[tag] = val
end
if next(info) then
return info
end
end
local escape_table = { ["'"] = "'", ["\""] = """, ["<"] = "<", [">"] = ">", ["&"] = "&" }
function html.generate_output(ldoc, args, project)
local check_directory, check_file, writefile = tools.check_directory, tools.check_file, tools.writefile
function ldoc.escape(str)
return (str:gsub("['&<>\"]", escape_table))
end
-- this generates the internal module/function references
function ldoc.href(see)
if see.href then -- explict reference, e.g. to Lua manual
return see.href
else
return ldoc.ref_to_module(see.mod)..'#'..see.name
end
end
-- this is either called from the 'root' (index or single module) or
-- from the 'modules' etc directories. If we are in one of those directories,
-- then linking to another kind is `../kind/name`; to the same kind is just `name`.
-- If we are in the root, then it is `kind/name`.
function ldoc.ref_to_module (mod)
local base = "" -- default: same directory
mod = mod or ldoc.module
local kind, module = mod.kind, ldoc.module
local name = mod.name -- default: name of module
if not ldoc.single then
if module then -- we are in kind/
if module.type ~= type then -- cross ref to ../kind/
base = "../"..kind.."/"
end
else -- we are in root: index
base = kind..'/'
end
else -- single module
if mod == ldoc.single then
name = ldoc.output
if not ldoc.root then base = '../' end
elseif ldoc.root then -- ref to other kinds (like examples)
base = kind..'/'
else
if module.type ~= type then -- cross ref to ../kind/
base = "../"..kind.."/"
end
end
end
return base..name..'.html'
end
function ldoc.use_li(ls)
if #ls > 1 then return '<li>','</li>' else return '','' end
end
function ldoc.display_name(item)
local name = item.display_name or item.name
if item.type == 'function' or item.type == 'lfunction' then return name..' '..item.args
else return name end
end
function ldoc.no_spaces(s) return (s:gsub('%A','_')) end
function ldoc.titlecase(s)
return (s:gsub('(%a)(%a*)',function(f,r)
return f:upper()..r
end))
end
function ldoc.typename (tp)
if not tp or tp == '' then return '' end
local optional
-- ?<type> is short for ?nil|<type>
if tp:match("^%?") and not tp:match '|' then
tp = '?|'..tp:sub(2)
end
local tp2 = tp:match("%?|?(.*)")
if tp2 then
optional = true
tp = tp2
end
local types = {}
for name in tp:gmatch("[^|]+") do
local ref,err = markup.process_reference(name)
if ref then
types[#types+1] = ('<a class="type" href="%s">%s</a>'):format(ldoc.href(ref),ref.label or name)
else
types[#types+1] = '<span class="type">'..name..'</span>'
end
end
local names = table.concat(types, ", ", 1, math.max(#types-1, 1))
if #types > 1 then names = names.." or "..types[#types] end
if optional then
if names ~= '' then
if #types == 1 then names = "optional "..names end
else
names = "optional"
end
end
return names
end
local module_template,err = utils.readfile (path.join(args.template,ldoc.templ))
if not module_template then
quit("template not found at '"..args.template.."' Use -l to specify directory containing ldoc.ltp")
end
local css = ldoc.css
ldoc.output = args.output
ldoc.ipairs = ipairs
ldoc.pairs = pairs
-- in single mode there is one module and the 'index' is the
-- documentation for that module.
ldoc.module = ldoc.single
if ldoc.single and args.one then
ldoc.kinds_allowed = {module = true, topic = true}
end
ldoc.root = true
ldoc.module.info = get_module_info(ldoc.module)
local out,err = template.substitute(module_template,{
ldoc = ldoc,
module = ldoc.module,
})
ldoc.root = false
if not out then quit("template failed: "..err) end
check_directory(args.dir) -- make sure output directory is ok
args.dir = args.dir .. path.sep
check_file(args.dir..css, path.join(args.style,css)) -- has CSS been copied?
-- write out the module index
out = cleanup_whitespaces(out)
writefile(args.dir..args.output..args.ext,out)
-- in single mode, we exclude any modules since the module has been done;
-- this step is then only for putting out any examples or topics
local mods = List()
for kind, modules in project() do
local lkind = kind:lower()
if not ldoc.single or ldoc.single and lkind ~= 'modules' then
mods:append {kind, lkind, modules}
end
end
-- write out the per-module documentation
-- note that we reset the internal ordering of the 'kinds' so that
-- e.g. when reading a topic the other Topics will be listed first.
ldoc.css = '../'..css
for m in mods:iter() do
local kind, lkind, modules = unpack(m)
check_directory(args.dir..lkind)
project:put_kind_first(kind)
for m in modules() do
ldoc.module = m
ldoc.body = m.body
m.info = get_module_info(m)
if ldoc.body and m.postprocess then
ldoc.body = m.postprocess(ldoc.body)
end
out,err = template.substitute(module_template,{
module=m,
ldoc = ldoc
})
if not out then
quit('template failed for '..m.name..': '..err)
else
out = cleanup_whitespaces(out)
writefile(args.dir..lkind..'/'..m.name..args.ext,out)
end
end
end
if not args.quiet then print('output written to '..tools.abspath(args.dir)) end
end
return html