Penlight

• Index

Examples

• seesubst.lua
• sipscan.lua
• symbols.lua
• test-cmp.lua
• test-data.lua
• test-listcallbacks.lua
• test-pretty.lua
• test-symbols.lua
• testapp.lua
• testclone.lua
• testconfig.lua
• testglobal.lua
• testinputfields.lua
• testinputfields2.lua
• testxml.lua
• which.lua

Libraries

• pl
• pl.Set
• pl.app
• pl.array2d
• pl.class
• pl.compat
• pl.comprehension
• pl.config
• pl.data
• pl.dir
• pl.file
• pl.func
• pl.import_into
• pl.input
• pl.lapp
• pl.lexer
• pl.luabalanced
• pl.operator
• pl.path
• pl.permute
• pl.pretty
• pl.seq
• pl.sip
• pl.strict
• pl.stringio
• pl.stringx
• pl.tablex
• pl.template
• pl.test
• pl.text
• pl.types
• pl.url
• pl.utils
• pl.xml

Classes

• pl.Date
• pl.List
• pl.Map
• pl.MultiMap
• pl.OrderedMap

Manual

• Introduction
• Tables and Arrays
• Strings. Higher-level operations on strings.
• Paths and Directories
• Date and Time
• Data
• Functional Programming
• Additional Libraries
• Technical Choices

sipscan.lua

-- another SIP example, shows how an awkward log file format
-- can be parsed. It also prints out the actual Lua string
-- pattern generated:
-- SYNC%s*%[([+%-%d]%d*)%]%s*([+%-%d]%d*)%s*([+%-%d]%d*)

require 'pl'

s = [[
SYNC [1] 0 547 (14679 sec)
SYNC [2] 0 555 (14679 sec)
SYNC [3] 0 563 (14679 sec)
SYNC [4] 0 571 (14679 sec)
SYNC [5] -1 580 (14679 sec)
SYNC [6] 0 587 (14679 sec)
]]


local first = true
local start
local res = {}
local pat = 'SYNC [$i{seq}] $i{diff} $i{val}'
print(sip.create_pattern(pat))
local match = sip.compile(pat)
for line in stringx.lines(s) do
  if match(line,res) then
    if first then
      expected = res.val
      first = false
    end
    print(res.val,expected - res.val)
    expected = expected + 8
  end
end