forked from LuaDist/asklua
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathask.lua
More file actions
741 lines (600 loc) · 21.3 KB
/
ask.lua
File metadata and controls
741 lines (600 loc) · 21.3 KB
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
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
--[[
Simple help system for Lua modules
Author: Julio M. Fernandez-Diaz
Date: Feb, 2010
(For Lua 5.1)
It is not intended to be complete, instead to be `enough'.
Error messages are displayed in stderr
--]]
-- Change the name of this file for other name if you wish
-- other name for querying help
local NAME = ...
module(NAME, package.seeall)
-- saving global names -------------------------------------------
local format, rep, gsub, sub = string.format, string.rep, string.gsub, string.sub
local find, char, byte, setlocale = string.find, string.char, string.byte, os.setlocale
local type, io, os, table, ipairs, pairs = type, io, os, table, ipairs, pairs
local _G, setmetatable, require, pcall, error = _G, setmetatable, require, pcall, error
local print = print
-- default css if not provided
local CSS = [[
<style type="text/css">
body {
font-family: Verdana, Helvetica, Arial, sans-serif;
font-size: 11pt; color: black; background-color: #fbfbfb;
}
#content {
top: 120px; margin-left: 225px;
}
#navigate {
position: fixed; top: 10px; width: 210px; float: left;
padding: 0 0 0 5px; background-color: #e6e6f2; line-height: 170%;
}
#navigate h1 {
font-size: large; text-align: left;
}
#navigate ul {
margin-left: 5px; padding-left: 10px;
}
#navigate ul ul {
font-size: 10pt; margin-left: 5px; padding-left: 10px; line-height: 130%;
}
#navigate ul ul ul {
font-size: 90%; margin-left: 5px; padding-left: 10px; line-height: 110%;
}
#navigate a:link {
color: #000099; text-decoration: none;
}
#navigate a:visited {
color: #000099; text-decoration: none;
}
#navigate a:hover {
color: #996633; text-decoration: none;
}
h1 {
text-align: center; color: #000000; width: auto;
}
h2 {
color: #006600; background-color: #ccffff; padding: 10px;
}
h3 {
color: #000099; background-color: #ffffcc; padding: 5px;
}
h4 {
font-size: normal; color: #990099;
}
h5 {
border-top: 1px solid; font-size: medium; color: #990000;
}
h6 {
font-size: medium; font-style: italic;
}
a:hover {
color: #996633;
}
p.listoffun {
word-spacing: 2em;
}
pre {
font-size: 90%; border: 1px dotted #888888;
background-color: #f9f9f9; padding: 5pt;
}
code {
font-size: 95%; color: #006666;
}
var {
color: #008040; font-style: italic; font-weight: normal;
}
</style>
10BC0
;]]
-- private functions -------------------------------------------
-- returns "utf-8" if detected, nil otherwise
local function detectutf8 ()
local c = setlocale(nil, "ctype"):lower()
local e = c:find("utf-8", 1, true) or c:find("utf8", 1, true)
return e and "utf-8"
end
-- convert utf8 to iso
-- http://lua-users.org/lists/lua-l/2003-10/msg00281.html
local function utf8toiso (s)
if s:find("[\224-\255]") then error("non-ISO char") end
s = s:gsub("([\192-\223])(.)", function (c1, c2)
c1 = byte(c1) - 192
c2 = byte(c2) - 128
return char(c1 * 64 + c2)
end)
return s
end
-- convert iso to utf8
-- the inverse of
-- http://lua-users.org/lists/lua-l/2003-10/msg00281.html
local function isotoutf8 (s)
s = s:gsub("([\128-\255])", function (c)
local b = c:byte()
return b < 192 and "\194"..c or "\195"..char(b-64)
end)
return s
end
-- convert iso-8859 <-> utf-8
local function convertcs (s, cs, uft8)
if cs == "utf-8" and not utf8 then -- convert to iso
return utf8toiso(s)
elseif cs ~= "utf-8" and utf8 then -- convert to utf-8
return isotoutf8(s)
end
return s
end
-- for formatted writing in a file
local function fprintf (filehandler, fmt, ...)
filehandler:write(format(fmt, ...))
end
-- print a line of s with n characters in stderr
local function line (s, n)
n = n or 72
io.stderr:write(rep(s, n).."\n")
end
-- Prints the file with name filename in the filehandler
local function printcss (filehandler, filename)
local data
local f = io.open(filename, "rb")
if f == nil then
data = CSS
else
data = f:read("*all")
f:close()
end
filehandler:write(data)
end
-- extract parts in what, by separating
-- [/][spath]^[info]
local function parts (what)
local absol, spath, info = ""
if what == nil then return nil end
what = what:gsub("%s", "") -- delete blanks
what = what:gsub("[%.]+", ".") -- collapse multiple .
if what:sub(1,1) == "/" then -- search initial /
absol = "/"
what = what:sub(2)
end
-- split parts
-- if more than one "^" appears only the last part is info
what:gsub("%^", "&")
what:gsub("^([^&]*)^([^&]*)$", function (w1, w2) spath, info = w1, w2 end)
if spath == nil then spath, info = what, ""
else
spath:gsub("&", "%^")
info:gsub("&", "%^")
end
-- delete possible initial and final .
if spath:sub(1,1) == "." then spath = spath:sub(2) end
if spath:sub(-1) == "." then spath = spath:sub(1,-2) end
return absol, spath, info
end
-- split a string in fields separated by "."
local function splitdot (s)
local t = {}
s:gsub('([^%.]+)(%.*)', function (w, d) t[#t+1] = w end)
return t
end
-- private variables -------------------------------------------
local Cases = {"Basic information", "List of functions", "Usage of ",
"More specific information", "See also", "Examples",
"Description of functions", "Version", "Notes"}
local cases = {"basic", "list", "usage", "more", "seealso", "example",
"description", "version", "notes",
}
local order = {b = 1, l = 2, u = 3, m = 4, s = 5,
e = 6, d = 7, v = 8, n = 9} -- order for "all"
local basis = NAME
-- public objects -------------------------------------------
_H = {
_CHARSET = "iso-8859-15", -- "utf-8" in other cases
_basic = '`'..NAME..[[` is a system that provides help for modules.
It searches eight types of information:
basic list usage more seealso example version notes
Execute `]]..NAME..'"/'..NAME..'^usage"` and `'..NAME..'"/'..NAME..
[[^more"` for more explanation.
Apart from this, documentation in `html` format can
be generated (see `]]..NAME..'.doc`).',
_usage = '`'..NAME..[[(search)`
@params:
1. `search` is a string in the form `"what^kind"` (a caret
separates two parts of the argument).
@returns: nothing.
@effects: it prints in `io.stderr`.
`what` is what are looking for; if the first character in it is `/`
an *absolute* path is searched; if not the string defined in `]]..
NAME..[[.base` is used as a basis;
`kind` is the type of information we want, that can be:
"basic" | "list" | "usage" | "more" | "seealso"
"b" | "l" | "u" | "m" | "s"
"example" | "version" | "notes" | "all"
"e" | "v" | "n" | "a"
(as we see, we can use only the first letter).
If `all` is requested then all information
(basic, list, usage, seealso, example, version, notes) *if exists* is given.
If no kind is provided (in this case the caret is optional) `"basic"` is assumed.
`]]..NAME..[[(nil)` and `]]..NAME..[[.about(nil)` are equivalent to
`]]..NAME..'"/'..NAME..[[^basic"`, that is, help about this helping system
is given.]],
_more = [[The search of information is controlled by two strings:
`what` and `kind`. Both are typed separated by a caret, `"^"`.
The first, `what`, is what we are searching. Normally this
is a sequence `name1[.name2[.name3 ...] ]` in which `name1` is a module
name, and `name2`, `name3`, ... indicate functions in the module or
tables with functions in the module.
If `what` begins with a slash, `/`, then an absolute path is searched.
Otherwise the help system adds as a prefix the string stored in a local
variable assigned with the function `]]..NAME..[[.base`. This improves the
interactivity because the user is not enforced to always type the
complete path of help.
The second, `kind`, is the type of information we want:
+ `basic`: the purpose of the module or function inside a module,
+ `list`: the listing of functions in the module,
+ `usage`: the use of a function, describing the arguments and returns,
+ `more`: more specific information,
+ `seealso`: some related information,
+ `example`: an example of use,
+ `version`: information about version and author,
+ `notes`: other information, usually license one,
+ `all`: show all the previous information.
For activate the help system the user (interactively) or some module
should invoke
require"]]..NAME..[["
**Note**: the present help system manages a module variable `_H`.
This means that `_H` cannot be used for other purposes in
the module.]],
_example = [[Some examples (with equivalences):
We assume the *first* invoking after `require"]]..NAME..[["` (by the user
or by some module):
]]..NAME..[["" --><-- ]]..NAME..[["/]]..NAME..[[^basic"
]]..NAME..[["^a" --><-- ]]..NAME..[["/]]..NAME..[[^all"
]]..NAME..[["/somemodule.fun^u" --><-- ]]..NAME..[["/somemodule.fun^usage"
]]..NAME..[[.base"somemodule" -- changes basis for searching
]]..NAME..[["^l" --><-- ]]..NAME..[["/somemodule^list"
]]..NAME..[["fun^u" --><-- ]]..NAME..[["/somemodule.fun^usage"
]]..NAME..[["/]]..NAME..[[^m" --><-- ]]..NAME..[["/]]..NAME..[[^more"]],
_Name = NAME,
_version = [[by Julio M. Fernández-Díaz, Dept. of Physics,
University of Oviedo, Spain, Version 0.1, February 2010
julio a t uniovi d o t es]],
_notes = [[THIS CODE IS HEREBY PLACED IN PUBLIC DOMAIN.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.]]
}
_H.about = {
_basic = [[Main function for on line help (synonym of `]]..NAME..[[`)]],
_usage = '`'..NAME..[[.about(search)`
`]]..NAME..[[(search)`
@params:
1. `search` is a string in the form `"what^kind"` (a caret
separates two parts of the argument).
@returns: nothing.
@effects: it prints in `io.stderr`.
`what` is what are looking for; if the first character in it is `/`
an *absolute* path is searched; if not the string defined through
`]]..NAME..[[.base` is used as a basis;
`kind` is the type of information we want, that can be:
"basic" | "list" | "usage" | "more" | "seealso"
"b" | "l" | "u" | "m" | "s"
"example" | "version" | "notes" | "all"
"e" | "v" | "n" | "a"
(as we can see we can use only the first letter).
If `all` is requested then all information,
(basic, list, usage, seealso, example, version, notes) *if exists* is given.
If no kind is provided `"basic"` is assumed.
Spaces typed by the user in the set `what^kind` are deleted before
the search of the help. Also, multiple `"."` are collapsed.
`]]..NAME..[[(nil)` and `]]..NAME..[[.about(nil)` are equivalent to
`]]..NAME..'"/'..NAME..[[^basic"`, that is, help about this helping system
is given.]],
}
function about (what)
what = what or "/"..NAME.."^basic"
if what == "" then what = "/"..basis.."^basic" end
local absol, spath, info = parts(what)
if absol ~= "/" then
if spath ~= "" then spath = basis.."."..spath
else spath = basis end
end
if info == "" then info = "basic" end
local ts = splitdot(spath)
table.insert(ts, 2, "_H")
if #info == 1 then
if info == "a" then info = "all"
elseif order[info] then info = cases[order[info]] end
end
local tt = {info}
if info == "all" then
for k, v in ipairs(cases) do tt[k] = v end
end
local H = _G
local CHARSET = H[ts[1]][ts[2]]["_CHARSET"]
local UTF8 = detectutf8()
for k = 1, #ts do
if H then H = H[ts[k]] end
end
if H == nil and info ~= "list" then
io.stderr:write("No information about '/"..spath.."^"..info.."'\n")
io.stderr:flush()
return
end
if info == "list" then tt = {"list"} end
local function fill (t)
local pH = ""
local nc, ic, lef = 3, 1, 25
for j, s in ipairs(t) do
pH = pH..s..(" "):rep(lef-#s)
if ic == nc then pH = pH.."\n" end
ic = ic+1
if ic > nc then ic = 1 end
end
return pH.."\n"
end
for k, v in ipairs(tt) do
local H1, pH = H["_"..v], ""
if v == "list" then
-- special case : list
local al = {}
for a in pairs(H) do
if a:sub(1,1) ~= "_" then al[#al+1] = a end
end
if #al > 0 then
table.sort(al)
io.stderr:write(">>>>>>>>>> "..spath..":"..v.." <<<<<<<<<<\n")
pH = 'List of functions in "'..spath..'":\n\n'..fill(al)
io.stderr:write(pH)
line("-")
end
elseif H1 and type(H1) ~= "table" then
io.stderr:write(">>>>>>>>>> "..spath.." ^ "..v.." <<<<<<<<<<\n")
H1 = convertcs(H1, CHARSET, UTF8)
io.stderr:write(pH..H1.."\n")
line("-")
elseif info ~= "all" then
io.stderr:write(">>No information about '/"..spath.." ^ "..info.."'\n")
end
end
io.stderr:flush()
end
_H.base = {
_basic = [[Establishes a *basis prefix* for help searching]],
_usage = [[`]]..NAME..[[.base(basis)`
@params:
1. `basis`, string.
@returns: nothing.
This function changes the `basis` (a string) to add as a prefix in the
desired information path when this does not begin with a slash, `/`.
When providind `basis` the slashdot `"/"` is not required.
Initially basis has the value `"]]..NAME..[["` but the loading of a module
sets the current `basis` to the module name.
When calling `]]..NAME..[[.base""` the current basis is displayed.
Calling `]]..NAME..[[.base(nil)` establishes `"]]..NAME..[["` as basis.]]
}
function base (b)
if b == nil or type(b) ~= "string" then b = NAME end
if b~= "" then
if b:sub(1,1) == "/" then b = b:sub(2) end
basis, now = b
io.stderr:write('--> Changing help basis to "'..basis..'"\n')
else
io.stderr:write('--> Help basis is "'..basis..'"\n')
end
end
_H.doc = {
_basic = [[Create `html` documentation for a module]],
_usage = [[`]]..NAME..[[.doc(modulename, filename)`
@param
8B92
s:
1. `modulename`: string (optional) is the name of the module
of which we want the documentation.
If not provided then the basis is used.
2. `filename`: string (optional) is the name of the output file,
in `html` format. If not given the name of the module is used.
If one of the extensions `".html"` or `".htm"` (in lowercase) is
not provided then automatically `".html"` is added to the filename.
@returns: nothing
@effects: it creates a file.
For generating the documentation module
[markdown.lua](http://www.frykholm.se/programming.html) from Niklas Frykholm
must be accessible.
(Note: the version in [luaforge.net](http://luaforge.net) is obsolete.)]],
_more = [[A CSS file called `default.css`, which is possible
to customize, is used. This file is embeded in the `html` output file.
If not provided the system uses an internal style.
The resulting `html` file can be converted, v.g., to PS
with [html2ps](http://user.it.uu.se/~jan/html2ps.html), from Jan Kärrman.
After that `ps2pdf` can be used to convert it to PDF format.]],
}
function doc (name, filename)
if type(name) ~= "string" then
io.stderr:write("A name of a module must be given\n")
return
end
if name == "" then name = basis end
if _G[name] == nil then
io.stderr:write("Module "..name.." not found\n")
return
end
local gn = _G[name]
if gn._H == nil then
io.stderr:write("Module "..name.." has no help information\n")
return
end
name = gn._H._Name
local CHARSET = gn._H._CHARSET
filename = filename or name
if type(filename) ~= "string" then
io.stderr:write("A filename for output must be given\n")
return
end
-- check for .html or .htm extension in filename
if filename:sub(-5) ~= ".html" and filename:sub(-4) ~= ".htm" then
filename = filename..".html"
end
local f = io.open(filename, "w")
if f == nil then
io.stderr:write('"'..filename..' cannot be created\n')
return
end
local md, markdown = pcall(require, "markdown")
if not md then
io.stderr:write("Markdown not found. No conversion is applied\n")
markdown = function (s) return s end
end
local cart = {}
gn = gn._H
local function pref (s)
return '<a href="#'..s..'">'..s..'</a>'
end
local function listfun (gn)
-- prepare an alphabetical list of (sub)functions
local al = {}
for a in pairs(gn) do
if a:sub(1,1) ~= "_" then al[#al+1] = {name = a} end
end
if #al > 0 then
table.sort(al, function (a, b) return a.name < b.name end)
end
for i, a in ipairs(al) do
local d = gn[a.name]
if d then
local b = listfun(d)
if #b > 0 then al[i][1] = b end
end
end
return al
end
local allfun = listfun(gn)
local function showlist (allfun, prev)
local cart = ""
for i, a in ipairs(allfun) do
local pr = prev == "" and "" or prev.."_"
cart = cart..'<li>'..'<a href="#'..pr..a.name..'">'..a.name..'</a>'
if #a > 0 then
cart = cart.."\n<ul>"..showlist(a[1], a.name).."\n</ul>"
end
cart = cart..'</li>\n'
end
return cart
end
local function navigate (gn, level, allfun)
-- check in order _-beginning fields
for i, c in ipairs(cases) do
local d = gn["_"..c]
local Ca = Cases[i]
if cases[i] == "usage" then
Ca = Ca..(level == 2 and "the module" or "function")
end
if d or c == "list" then
cart[#cart+1] = "<li>"..'<a href="#'..c..'">'..Ca.."</a></li>\n"
end
if c == "description" then
if #allfun > 0 then
cart[#cart+1] = "<li>"..'<a href="#'..c..'">'..Ca.."</a>\n"
cart[#cart+1] = '<ul>\n'
cart[#cart+1] = showlist(allfun, "")
cart[#cart+1] = '</ul></li>\n'
end
end
end
end
-- navigation menu
cart[#cart+1] = '<div class="noprint" id="navigate">\n'
cart[#cart+1] = '<h1>Module <code>'..name..'</code></h1>\n\n'
cart[#cart+1] = '<ul>\n'
navigate(gn, 2, allfun)
cart[#cart+1] = '</ul></div>\n'
-- main part
local function inside (gn, level, previous)
-- prepare an alphabetical list of (sub)functions
local al = {}
for a in pairs(gn) do
if a:sub(1,1) ~= "_" then al[#al+1] = a end
end
if #al > 0 then table.sort(al) end
-- check in order _-beginning fields
for i, c in ipairs(cases) do
local d = gn["_"..c]
local Ca = Cases[i]
if cases[i] == "usage" then
Ca = Ca..(level == 2 and "the module" or "function")
end
local pH = "\n"
if c == "list" and #al > 0 then
local ts = splitdot(previous)
table.remove(ts, 1)
local s = table.concat(ts, "_")
if #s > 0 then s = s.."_" end
pH = pH..'<p class="listoffun">\n'
for j, fun in ipairs(al) do
pH = pH..'<a href="#'..s..fun..'">'..fun..'</a>\n'
end
pH = pH.."</p>\n\n"
local cc = level == 2 and ' id ="'..c..'"' or ""
cart[#cart+1] = '\n<h'..level..cc..'>'..Ca..'</h'..level..'>\n'
cart[#cart+1] = pH
cart[#cart+1] = "\n"
end
if c == "description" and #al > 0 then
table.sort(al)
cart[#cart+1] = '\n<h'..level..
' id = "description">Description of functions</h'..
level..'>\n\n'
local level1 = level+1
for i, a in ipairs(al) do
local pre = previous == "" and a or previous.."."..a
local ts = splitdot(pre)
table.remove(ts, 1)
local s = table.concat(ts, "_")
cart[#cart+1] = '<h'..level1..' id="'..s..
'">'..pre..'</h'..level1..'>\n'
local d = gn[a]
if d then inside(d, level1+1, pre) end
end
end
if d then
local cc = level == 2 and ' id ="'..c..'"' or ""
--local cc = ' id ="'..c..'"'
cart[#cart+1] = '\n<h'..level..cc..'>'..Ca..'</h'..level..'>\n'
cart[#cart+1] = pH..markdown(d)
cart[#cart+1] = "\n"
end
end
end
cart[#cart+1] = '<div id="content">\n'
cart[#cart+1] = "<h1>Module "..name.."</h1>\n"
inside(gn, 2, name)
cart[#cart+1] = '</div>\n'
-- printing
local s = table.concat(cart, "\n")
local head = [[<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="content-type" content="text/html; charset=]]..CHARSET..[[" />
<title>%s</title>]]
local head1 = "\n</head> <body>\n"
local foot = "\n</body></html>\n"
fprintf(f, head, "Module "..name)
-- embeding CSS file
printcss(f, "default.css")
f:write(head1)
f:write(s)
f:write(foot)
f:close()
end
io.stderr:write('A help system is available. Call '..NAME..'(nil) for information.\n')
base(NAME)
__call = function (t, s, ...)
if s == nil then
about(nil)
elseif type(s) == "string" then
about(s)
else
return t[s](...)
end
end
setmetatable(_G[NAME], _G[NAME])