Module:SimpleDebug/doc explained

Contains a functions to help debug the lua modules. It allows to collect and view the values of several variables and/or points in your lua program, from a module (which is usual) or in several modules (which are required from the main module).

It is designed so that its functions are called from within the module that is to be debugged, calls that will have to be part of the code (of the module that you have designed, or that you want to improve or adapt) until you decide to delete them (when you already have determined the bug). Thus, you do not have to call any of its functions from an invoke.

Uses

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Function abbreviations: w: where. n: names. v: variables. s: string.
Variables
Name	Default
tab.oneline	true	If it is false or it is true and contains nested tables, it will show a line for each item in the table and with an indent for each nested table. If it is true and it does not contain nested tables, it shows the table in a line.
tab.allidx	false	If it is true then also displays the numerical indexes of a table.
dec	-1	Spaces for the decimals: -1: It displays all required decimals. 0: No decimals. n: 1: one decimal, 2: two decimals, etc.
enabled	true	If it is false all calls to the below functions do nothing.
nohtml	false	In strings, it replaces < for ⪡ and > for ⪢.
plaintext	false	Deletes html format.
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Functions
w (where)		where: point label.
v (...)		...: a number of variables = var1, var2...
wv (where, ...)		where: point label. ...: a number of variables = var1, var2...
nv (...)		...: a number of pairs of name-variable = name1, var1, name2, var2....
wnv (where, ...)		where: point label. ...: a number of pairs of name-variable = name1, var1, name2, var2....
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Variables
Name	Default
s		The string variable that holds the returned values from the next functions.
maxlines.num	100	The maxim number of lines (on calling the next functions).
maxlines.doerror	true	If it is true and maxlines.num is reached, error(s) is called.
counter	false	Adds an autoincremental number at the beginning of each call of a function.
Functions
breakline		Adds a break line in s.
wtos (where)		Equal to w, but the return string is stored in s.
vtos (...)		Equal to v, but the return string is stored in s.
wvtos (where, ...)		Equal to wv, but the return string is stored in s.
nvtos (...)		Equal to nv, but the return string is stored in s.
wnvtos (where, ...)		Igual a wnv, but the return string is stored in s.

Examples

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Following the flow

local SD = require "Module:SimpleDebug"return SD.v ('Here is reached')returns:

Here is reached

Number of decimal places and value of a variable

local SD = require "Module:SimpleDebug"SD.dec = 2return SD.v (1/3)returns:

0.33

Nohtml

local SD = require "Module:SimpleDebug"SD.nohtml = truereturn SD.v ("bold")returns:

"⪡b⪢bold⪡/b⪢"

Plaintext

local SD = require "Module:SimpleDebug"SD.plaintext = truereturn SD.v ("bold")returns:

"bold"

The value of several variables

local SD = require "Module:SimpleDebug"local a = 12local b = 'Hello'return SD.v (a,b)returns:

12  •  "Hello"

Non-assigned variable detection

local SD = require "Module:SimpleDebug"local a = truereturn SD.v (a,b)returns:

true  •  nil

The value of a table

local SD = require "Module:SimpleDebug"local a = return SD.v (a)

returns:

local SD = require "Module:SimpleDebug"local a = return SD.v (a)returns:

local SD = require "Module:SimpleDebug"local a = return SD.v (a)returns:

local SD = require "Module:SimpleDebug"SD.tab.allidx = truelocal a = return SD.v (a)returns:

Usually, you implement these functions with error function:local SD = require "Module:SimpleDebug"local a = error (SD.v (a))displays:

{
 [1] = {
     [1] = 2,
     [2] = 3,
     ["First"] = 1,
   },
 [2] = "Middle",
 [3] = {
     [1] = 4,
     [2] = 6,
     ["Second"] = 5,
   },
}