1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
|
function format_date(date)
if date == nil then return date end
date = pandoc.utils.normalize_date(pandoc.utils.stringify(date))
local year, month, day = date:match("(%d%d%d%d)-(%d%d)-(%d%d)")
if year == nil then return nil end
local time = os.time({year = tonumber(year), month = tonumber(month), day = tonumber(day)})
return pandoc.MetaMap({
yyyy_mm_dd = os.date("%F", time),
yyyy = os.date("%Y", time),
mm = os.date("%m", time),
dd = os.date("%d", time),
rfc3339 = os.date("%FT%T+00:00", time),
long = os.date("%B %d, %Y", time),
})
end
function table_to_list(t, cmp)
local l = pandoc.List()
for key, value in pairs(t) do l:insert(pandoc.MetaMap({key = key, value = value})) end
l:sort(cmp or function(i1, i2) return i1.key < i2.key end)
return l
end
function group_by(l, field, insert)
insert = insert or function(group, _, item)
if not group then
group = l:new({item})
return group
end
group:insert(item)
end
local groups = {}
for i = 1, #l do
local item = l[i]
local f = field(item)
if f ~= nil then
local out = insert(groups[f], f, item)
if out ~= nil then groups[f] = out end
end
end
return groups
end
function splitstr(input, sep)
sep = sep or "%s"
local t = {}
for str in input:gmatch("([^" .. sep .. "]+)") do table.insert(t, str) end
return t
end
function relative_to(dir, target)
dir = splitstr(dir, "/")
target = splitstr(target, "/")
local prefix = true
local path = ""
for i = 1, math.min(#dir, #target) do
local t = target[i]
if prefix then
if dir[i] ~= t then
prefix = false
path = "../" .. t
end
else
path = "../" .. path .. "/" .. t
end
end
if #dir < #target then
for i = #dir + 1, #target do path = path .. (path == "" and "" or "/") .. target[i] end
elseif #dir > #target then
for _ = #target + 1, #dir do path = "../" .. path end
end
return path
end
function make_absolute(rel, base)
return rel:find("^/") ~= nil and rel or base:gsub("^(.*)/.-$", "%1") .. "/" .. rel
end
function resolve_url(site_url, ref_file, target_file)
target_file = target_file:gsub("/index%.html$", "/")
local ref_base_dir = ref_file:gsub("^(.*)/.-$", "%1")
local abs = target_file
local rel = relative_to(ref_base_dir, abs):gsub("/index%.html$", "/")
return pandoc.MetaMap({abs = abs, rel = rel, full = (site_url .. abs)})
end
function resolve_layout(layout)
if layout ~= nil then
layout = pandoc.utils.stringify(layout)
return pandoc.MetaMap({id = layout, ["is_" .. layout] = pandoc.MetaBool(true)})
end
end
function resolve_namespace(namespace)
namespace = pandoc.utils.stringify(namespace)
local root = "index"
if namespace ~= "" then root = namespace:gsub("^/([^/]*).*$", "%1") end
return pandoc.MetaMap({
root = pandoc.MetaMap({id = root, ["is_" .. root] = pandoc.MetaBool(true)}),
full = namespace,
})
end
function resolve_category(categories, category)
if categories ~= nil and category ~= nil then
category = pandoc.utils.stringify(category)
data = pandoc.MetaMap(categories[category])
data.id = category
return data
end
end
function prep_menu(active_id, main_menu)
local active_item = nil
for i = 1, #main_menu do
local item = main_menu[i]
local active = pandoc.utils.stringify(item.id) == active_id
item.active = pandoc.MetaBool(active)
if active then active_item = item end
end
return pandoc.MetaMap({
items = main_menu:filter(function(item) return not item.hidden or item.active end),
active = active_item,
})
end
function process_pages(global, pages_by_id)
if pages_by_id == nil then pages_by_id = {} end
local pages_list = pandoc.List()
for _, page in pairs(pages_by_id) do
page = process(global, page)
pages_list:insert(page)
end
local pages_categorized = pages_list:filter(function(p) return p.category ~= nil end)
pages_categorized:sort(function(p1, p2) return p1.title < p2.title end)
local pages_by_category = group_by(pages_categorized,
function(p) return pandoc.utils.stringify(p.category.id) end)
pages_by_category = pandoc.MetaList(table_to_list(pages_by_category,
function(i1, i2) return i1.key < i2.key end))
local pages_data = pandoc.MetaMap({
all = pages_list,
by_id = pages_by_id,
by_category = pages_by_category,
})
local categories_data = group_by(pages_categorized, function(p)
return p.category and pandoc.utils.stringify(p.category.id)
end, function(stats, _, p)
if not stats then
return {name = p.category.name, count = 1}
else
stats.count = stats.count + 1
end
end)
categories_data = pandoc.MetaList(table_to_list(categories_data))
for i = 1, #categories_data do
categories_data[i].value.count = ("%d"):format(categories_data[i].value.count)
end
return pages_data, categories_data
end
function process(global, meta)
meta.namespace = resolve_namespace(meta.namespace)
meta.file_out = pandoc.utils.stringify(meta.file_out):gsub("^out", "")
meta.layout = resolve_layout(meta.layout)
meta.url = resolve_url(global.site.url, global.file_out, meta.file_out)
if meta.title ~= nil then
meta.title = pandoc.utils.stringify(meta.title)
else
meta.title = ""
end
if meta.preview ~= nil then
meta.preview = make_absolute(pandoc.utils.stringify(meta.preview), meta.file_out)
meta.preview = resolve_url(global.site.url, global.file_out, meta.preview)
end
if meta.date ~= nil then meta.date = format_date(meta.date) end
if meta.last_update ~= nil then
meta.last_update = format_date(meta.last_update)
else
meta.last_update = meta.date
end
meta.category = resolve_category(global.categories[meta.namespace.root.id], meta.category)
if meta.menus ~= nil and meta.menus.main ~= nil then
meta.menus.main = prep_menu(meta.namespace.root.id, meta.menus.main)
end
local pages, local_categories = process_pages(global, meta.pages)
meta.pages = pages
meta.local_categories = local_categories
return meta
end
function Meta(meta)
meta.site.url = pandoc.utils.stringify(meta.site.url):gsub("/$", "")
return process(meta, meta)
end
|
