Format.lua: Difference between revisions
Line 58: | Line 58: | ||
== string_to_table == | == string_to_table == | ||
NOTE: | NOTE: | ||
for cut functionality do something like | for cut functionality do something like <BR> | ||
print(format.string_to_table(" ", "This is a test")[2]) | print(format.string_to_table(" ", "This is a test")[2]) <BR> | ||
gives you the second field which is .... is | gives you the second field which is .... is | ||
'''INPUT:'''<BR> | '''INPUT:'''<BR> |
Revision as of 21:01, 6 December 2007
dostounix
INPUT:
This library function required the following inputs/parameters.
- file contents
- Example: c = file:read("*a")
- String with EOL
OUTPUT:
This library function deliverers the following output/parameters.
- Output is returned minus the \r characters
CODING EXAMPLE:
-- Include/Call for this library require("format") -- file test.txt is from dos/windows require "format" f = io.open("test.txt") c = f:read("*a") file = format.dostounix(c) f:close() --file now contains the contents of test.txt without the \r char
remove_blanks_comments
INPUT:
This library function required the following inputs/parameters.
- Path
- Example: /root/mynotes
OUTPUT:
This library function deliverers the following output/parameters.
- Returns a table to iterate over minus the blank and commented lines
CODING EXAMPLE:
-- Include/Call for this library require("format") f = io.open("/etc/shorewall/rules") c = f:read("*a") t = format.remove_blanks_comments(c) f:close() -- t is a table with only pertinent lines
table_to_string
INPUT:
This library required the following inputs/parameters.
- Delimiter
- Could be one or more chars.
- Array
- Data which is to be joined into a string.
OUTPUT:
This library deliverers the following output/parameters.
- String
- Could be something like "Word, Word, Word, Word"
CODING EXAMPLE:
-- Set variable/Call for this library
require "format"
-- Create a array of data (Not sure if the next row is correct)
arraytojoin = { "Bird", "Fish", "Cow", "Hammer" }
-- Process the data (note the delimiter)
liboutput = format.table_to_string(";", arraytojoin)
Bird;Fish;Cow;Hammer
string_to_table
NOTE:
for cut functionality do something like
print(format.string_to_table(" ", "This is a test")[2])
gives you the second field which is .... is
INPUT:
This library required the following inputs/parameters.
- Delimiter
- Could be one or more chars.
- String or line from a file: bobo~foo~bar~baz~1
- Data is to be split into a table
OUTPUT:
This library deliverers the following output/parameters.
- Table
- { 1 = "bobo", 2 = "foo", 3 = "bar", 4 = "baz", 5 = 1}
CODING EXAMPLE:
-- Set variable/Call for this library require "format" -- Grab the line from a file or input it into the funtcion line = "bobo~foo~bar~baz~1" -- Process the data (note the delimiter) t = format.string_to_table("~", line) 't' would contain: { 1 = "bobo", 2 = "foo", 3 = "bar", 4 = "baz", 5 = 1} for a,b in ipairs(t) do print(a,b) end 1 bobo 2 foo 3 bar 4 baz 5 1