![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
diff --git a/doc/rrdlua.1 b/doc/rrdlua.1
--- a/doc/rrdlua.1
+++ /dev/null
@@ -1,350 +0,0 @@
-.\" Automatically generated by Pod::Man 2.1801 (Pod::Simple 3.08)
-.\"
-.\" Standard preamble:
-.\" ========================================================================
-.de Sp \" Vertical space (when we can't use .PP)
-.if t .sp .5v
-.if n .sp
-..
-.de Vb \" Begin verbatim text
-.ft CW
-.nf
-.ne \\$1
-..
-.de Ve \" End verbatim text
-.ft R
-.fi
-..
-.\" Set up some character translations and predefined strings. \*(-- will
-.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left
-.\" double quote, and \*(R" will give a right double quote. \*(C+ will
-.\" give a nicer C++. Capital omega is used to do unbreakable dashes and
-.\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff,
-.\" nothing in troff, for use with C<>.
-.tr \(*W-
-.ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p'
-.ie n \{\
-. ds -- \(*W-
-. ds PI pi
-. if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch
-. if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch
-. ds L" ""
-. ds R" ""
-. ds C` ""
-. ds C' ""
-'br\}
-.el\{\
-. ds -- \|\(em\|
-. ds PI \(*p
-. ds L" ``
-. ds R" ''
-'br\}
-.\"
-.\" Escape single quotes in literal strings from groff's Unicode transform.
-.ie \n(.g .ds Aq \(aq
-.el .ds Aq '
-.\"
-.\" If the F register is turned on, we'll generate index entries on stderr for
-.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
-.\" entries marked with X<> in POD. Of course, you'll have to process the
-.\" output yourself in some meaningful fashion.
-.ie \nF \{\
-. de IX
-. tm Index:\\$1\t\\n%\t"\\$2"
-..
-. nr % 0
-. rr F
-.\}
-.el \{\
-. de IX
-..
-.\}
-.\"
-.\" Accent mark definitions (@(#)ms.acc 1.5 88/02/08 SMI; from UCB 4.2).
-.\" Fear. Run. Save yourself. No user-serviceable parts.
-. \" fudge factors for nroff and troff
-.if n \{\
-. ds #H 0
-. ds #V .8m
-. ds #F .3m
-. ds #[ \f1
-. ds #] \fP
-.\}
-.if t \{\
-. ds #H ((1u-(\\\\n(.fu%2u))*.13m)
-. ds #V .6m
-. ds #F 0
-. ds #[ \&
-. ds #] \&
-.\}
-. \" simple accents for nroff and troff
-.if n \{\
-. ds ' \&
-. ds ` \&
-. ds ^ \&
-. ds , \&
-. ds ~ ~
-. ds /
-.\}
-.if t \{\
-. ds ' \\k:\h'-(\\n(.wu*8/10-\*(#H)'\'\h"|\\n:u"
-. ds ` \\k:\h'-(\\n(.wu*8/10-\*(#H)'\`\h'|\\n:u'
-. ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'^\h'|\\n:u'
-. ds , \\k:\h'-(\\n(.wu*8/10)',\h'|\\n:u'
-. ds ~ \\k:\h'-(\\n(.wu-\*(#H-.1m)'~\h'|\\n:u'
-. ds / \\k:\h'-(\\n(.wu*8/10-\*(#H)'\z\(sl\h'|\\n:u'
-.\}
-. \" troff and (daisy-wheel) nroff accents
-.ds : \\k:\h'-(\\n(.wu*8/10-\*(#H+.1m+\*(#F)'\v'-\*(#V'\z.\h'.2m+\*(#F'.\h'|\\n:u'\v'\*(#V'
-.ds 8 \h'\*(#H'\(*b\h'-\*(#H'
-.ds o \\k:\h'-(\\n(.wu+\w'\(de'u-\*(#H)/2u'\v'-.3n'\*(#[\z\(de\v'.3n'\h'|\\n:u'\*(#]
-.ds d- \h'\*(#H'\(pd\h'-\w'~'u'\v'-.25m'\f2\(hy\fP\v'.25m'\h'-\*(#H'
-.ds D- D\\k:\h'-\w'D'u'\v'-.11m'\z\(hy\v'.11m'\h'|\\n:u'
-.ds th \*(#[\v'.3m'\s+1I\s-1\v'-.3m'\h'-(\w'I'u*2/3)'\s-1o\s+1\*(#]
-.ds Th \*(#[\s+2I\s-2\h'-\w'I'u*3/5'\v'-.3m'o\v'.3m'\*(#]
-.ds ae a\h'-(\w'a'u*4/10)'e
-.ds Ae A\h'-(\w'A'u*4/10)'E
-. \" corrections for vroff
-.if v .ds ~ \\k:\h'-(\\n(.wu*9/10-\*(#H)'\s-2\u~\d\s+2\h'|\\n:u'
-.if v .ds ^ \\k:\h'-(\\n(.wu*10/11-\*(#H)'\v'-.4m'^\v'.4m'\h'|\\n:u'
-. \" for low resolution devices (crt and lpr)
-.if \n(.H>23 .if \n(.V>19 \
-\{\
-. ds : e
-. ds 8 ss
-. ds o a
-. ds d- d\h'-1'\(ga
-. ds D- D\h'-1'\(hy
-. ds th \o'bp'
-. ds Th \o'LP'
-. ds ae ae
-. ds Ae AE
-.\}
-.rm #[ #] #H #V #F C
-.\" ========================================================================
-.\"
-.IX Title "RRDLUA 1"
-.TH RRDLUA 1 "2009-06-09" "1.3.999" "rrdtool"
-.\" For nroff, turn off justification. Always turn off hyphenation; it makes
-.\" way too many mistakes in technical documents.
-.if n .ad l
-.nh
-.SH "NAME"
-RRDLua \- Lua binding for RRDTool
-.SH "SYNOPSIS"
-.IX Header "SYNOPSIS"
-.Vb 10
-\& require \*(Aqrrd\*(Aq
-\& rrd.create(...)
-\& rrd.dump(...)
-\& rrd.fetch(...)
-\& rrd.first(...)
-\& rrd.graph(...)
-\& rrd.graphv(...)
-\& rrd.info(...)
-\& rrd.last(...)
-\& rrd.resize(...)
-\& rrd.restore(...)
-\& rrd.tune(...)
-\& rrd.update(...)
-\& rrd.updatev(...)
-.Ve
-.SH "DESCRIPTION"
-.IX Header "DESCRIPTION"
-.SS "Calling Sequence"
-.IX Subsection "Calling Sequence"
-This module accesses RRDtool functionality directly from within Lua.
-The arguments to the functions listed in the \s-1SYNOPSIS\s0 are explained in
-the regular RRDtool documentation. The command-line call
-.PP
-.Vb 1
-\& rrdtool update mydemo.rrd \-\-template in:out N:12:13
-.Ve
-.PP
-gets turned into
-.PP
-.Vb 1
-\& rrd.update ("mydemo.rrd", "\-\-template", "in:out", "N:12:13")
-.Ve
-.PP
-Note that \-\-template=in:out is also valid.
-.SS "Using with Lua 5.1"
-.IX Subsection "Using with Lua 5.1"
-Start your programs with:
-.PP
-.Vb 5
-\& \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
-\& package.cpath = \*(Aq/usr/local/rrdtool\-1.3.2/lib/lua/5.1/?.so;\*(Aq ..
-\& package.cpath
-\& require \*(Aqrrd\*(Aq
-\& \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
-.Ve
-.PP
-\&\s-1OBS:\s0 If you configured with \-\-enable\-lua\-site\-install, you don't need
-to set package.cpath like above.
-.SS "Using with Lua 5.0"
-.IX Subsection "Using with Lua 5.0"
-The Lua binding for RRDtool needs the Lua module compat\-5.1 to work with
-Lua 5.0. Some Linux distros, like Ubuntu gutsy and hardy, have it already
-integrated in Lua 5.0 \-dev packages, so you just have to require it:
-.PP
-.Vb 1
-\& require \*(Aqcompat\-5.1\*(Aq
-.Ve
-.PP
-For other platforms, the compat\-5.1 module that comes with this binding
-will be installed for you in the same dir where RRDtool was installed,
-under the subdir .../lib/lua/5.0. In this case, you must tell your Lua
-programs where to find it by changing the Lua var \s-1LUA_PATH:\s0
-.PP
-.Vb 8
-\& \-\- compat\-5.1.lua is only necessary for Lua 5.0 \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
-\& \-\- try only compat\-5.1 installed with RRDtool package
-\& local original_LUA_PATH = LUA_PATH
-\& LUA_PATH = \*(Aq/usr/local/rrdtool\-1.3.2/lib/lua/5.0/?.lua\*(Aq
-\& require \*(Aqcompat\-5.1\*(Aq
-\& LUA_PATH = original_LUA_PATH
-\& original_LUA_PATH = nil
-\& \-\-\- end of code to require compat\-5.1 \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
-\&
-\& Now we can require the rrd module in the same way we did for 5.1 above:
-\&
-\& \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
-\& package.cpath = \*(Aq/usr/local/rrdtool\-1.3.2/lib/lua/5.0/?.so;\*(Aq ..
-\& package.cpath
-\& require \*(Aqrrd\*(Aq
-\& \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
-.Ve
-.SS "Error Handling"
-.IX Subsection "Error Handling"
-The Lua RRDTool module functions will abort your program with a stack
-traceback when they can not make sense out of the arguments you fed them.
-However, you can capture and handle the errors yourself, instead of just
-letting the program abort, by calling the module functions through Lua
-protected calls \- 'pcall' or 'xpcall'.
-.PP
-.Vb 1
-\& Ex: program t.lua
-\&
-\& \-\-\- compat\-5.1.lua is only necessary for Lua 5.0 \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
-\& \-\- uncomment below if your distro has not compat\-5.1
-\& \-\- original_LUA_PATH = LUA_PATH
-\& \-\- try only compat\-5.1.lua installed with RRDtool package
-\& \-\- LUA_PATH = \*(Aq/usr/local/rrdtool\-1.3.2/lib/lua/5.0/?.lua\*(Aq
-\&
-\& \-\- here we use a protected call to require compat\-5.1
-\& local r = pcall(require, \*(Aqcompat\-5.1\*(Aq)
-\& if not r then
-\& print(\*(Aq** could not load compat\-5.1.lua\*(Aq)
-\& os.exit(1)
-\& end
-\&
-\& \-\- uncomment below if your distro has not compat\-5.1
-\& \-\- LUA_PATH = original_LUA_PATH
-\& \-\- original_LUA_PATH = nil
-\& \-\-\- end of code to require compat\-5.1 \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
-\&
-\& \-\- If the Lua RRDTool module was installed together with RRDTool,
-\& \-\- in /usr/local/rrdtool\-1.3.2/lib/lua/5.0, package.cpath must be
-\& \-\- set accordingly so that \*(Aqrequire\*(Aq can find the module:
-\&
-\& package.cpath = \*(Aq/usr/local/rrdtool\-1.3.2/lib/lua/5.0/?.so;\*(Aq ..
-\& package.cpath
-\&
-\& local rrd = require \*(Aqrrd\*(Aq
-\& rrd.update ("mydemo.rrd","N:12:13")
-.Ve
-.PP
-If we execute the program above we'll get:
-.PP
-.Vb 1
-\& $ lua t.lua
-\&
-\& lua: t.lua:27: opening \*(Aqmydemo.rrd\*(Aq: No such file or directory
-\& stack traceback:
-\& [C]: in function \`update\*(Aq
-\& t.lua:27: in main chunk
-\& [C]: ?
-.Ve
-.SS "Return Values"
-.IX Subsection "Return Values"
-The functions rrd.first, rrd.last, rrd.graph, rrd.info and rrd.fetch
-return their findings.
-.PP
-\&\fBrrd.first\fR returns a single \s-1INTEGER\s0 representing the timestamp of the
-first data sample in an \s-1RRA\s0 within an \s-1RRD\s0 file. Example returning the
-first timestamp of the third \s-1RRA\s0 (index 2):
-.PP
-.Vb 1
-\& local firstdate = rrd.first(\*(Aqexample.rrd\*(Aq, \*(Aq\-\-rraindex\*(Aq, 2)
-.Ve
-.PP
-\&\fBrrd.last\fR returns a single \s-1INTEGER\s0 representing the last update time.
-.PP
-.Vb 1
-\& local lastupdate = rrd.last(\*(Aqexample.rrd\*(Aq)
-.Ve
-.PP
-\&\fBrrd.graph\fR returns the x\-size and y\-size of the created image and a table
-with the results of the \s-1PRINT\s0 arguments.
-.PP
-.Vb 3
-\& local xsize, ysize, averages = rrd.graph ...
-\& print(string.format("Image size: %dx%d", xsize, ysize)
-\& print("Averages: ", table.concat(averages, \*(Aq, \*(Aq))
-.Ve
-.PP
-\&\fBrrd.info\fR returns a table where the keys and the values represent property
-names and property values of the \s-1RRD\s0.
-.PP
-.Vb 4
-\& local info = rrd.info("test.rrd")
-\& for key, value in pairs(info) do
-\& print(key, \*(Aq = \*(Aq, value)
-\& end
-.Ve
-.PP
-\&\fBrrd.graphv\fR takes the same parameters as rrd.graph but it returns a table
-only. The table returned contains meta information about the graph, like
-its size as well as the position of the graph area on the image. When
-called with and empty filename, the contents of the graph will be returned
-in the table as well (key 'image').
-.PP
-\&\fBrrd.updatev\fR also returns a table. The keys of the table are strings
-formed by the concatenation of timestamp, \s-1RRA\s0 index and data source name
-for each consolidated data point (\s-1CDP\s0) written to disk as a result of the
-current update call. The key values are \s-1CDP\s0 values.
-.PP
-\&\fBrrd.fetch\fR is the most complex of the pack regarding return values. It
-returns 5 values: the initial timestamp, the step, two parallel arrays
-containing the data source names and their data points respectively, and
-the final timestamp.
-.PP
-.Vb 1
-\& \-\-require compat\-5.1 if necessary
-\&
-\& package.cpath = \*(Aq/usr/local/rrdtool\-1.3.2/lib/lua/5.0/?.so;\*(Aq ..
-\& package.cpath
-\&
-\& local rrd = require "rrd"
-\& local first, last = rrd.first("test.rrd"), rrd.last("test.rrd")
-\& local start, step, names, data =
-\& rrd.fetch("test.rrd", "\-\-start", first, "\-\-end", last, "AVERAGE")
-\& io.write(string.format("Start: %s (%d)\en",
-\& os.date("%c", start),start))
-\& io.write("Step size: ", step, " seconds\en")
-\& io.write("DS names: ", table.concat(names, \*(Aq, \*(Aq), "\en")
-\& io.write("Data points: ", #data[1], "\en")
-\& io.write("Data:\en")
-\& for i,dp in ipairs(data) do
-\& io.write(os.date("%t", start), " (", start, "): ")
-\& start = start + step
-\& for j,v in ipairs(dp) do
-\& io.write(v, " ")
-\& end
-\& io.write("\en")
-\& end
-.Ve
-.SH "AUTHOR"
-.IX Header "AUTHOR"
-Fidelis Assis <fidelis@pobox.com>