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separated utils

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mpeterv
2014-01-01 17:00:15 +04:00
parent 51b3ed4e2a
commit 3fca429853
3 changed files with 42 additions and 37 deletions
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3
rockspecs/largparse-wip-1.rockspec
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@@ -17,6 +17,7 @@ build = {
type = "builtin", type = "builtin",
modules = { modules = {
largparse = "src/largparse.lua", largparse = "src/largparse.lua",
["largparse.state"] = "src/state.lua" ["largparse.state"] = "src/state.lua",
["largparse.utils"] = "src/utils.lua"
} }
} }

45
src/largparse.lua
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@@ -3,6 +3,7 @@ local largparse = {}
local class = require "30log" local class = require "30log"
local State = require "largparse.state" local State = require "largparse.state"
local utils = require "largparse.utils"
local Parser = class() local Parser = class()
@@ -44,34 +45,6 @@ function Parser:make_target(element)
end end
end end
function Parser:parse_boundaries(boundaries)
if tonumber(boundaries) then
return tonumber(boundaries), tonumber(boundaries)
end
if boundaries == "*" then
return 0, math.huge
end
if boundaries == "+" then
return 1, math.huge
end
if boundaries == "?" then
return 0, 1
end
if boundaries:match "^%d+%-%d+$" then
local min, max = boundaries:match "^(%d+)%-(%d+)$"
return tonumber(min), tonumber(max)
end
if boundaries:match "^%d+%+$" then
local min = boundaries:match "^(%d+)%+$"
return tonumber(min), math.huge
end
end
-- TODO: make it declarative as it was -- TODO: make it declarative as it was
function Parser:argument(name, ...) function Parser:argument(name, ...)
local element = { local element = {
@@ -97,8 +70,8 @@ function Parser:argument(name, ...)
self:make_target(element) self:make_target(element)
element.mincount, element.maxcount = self:parse_boundaries(element.count) element.mincount, element.maxcount = utils.parse_boundaries(element.count)
element.minargs, element.maxargs = self:parse_boundaries(element.args) element.minargs, element.maxargs = utils.parse_boundaries(element.args)
table.insert(self.arguments, element) table.insert(self.arguments, element)
table.insert(self.elements, element) table.insert(self.elements, element)
@@ -130,8 +103,8 @@ function Parser:option(name, ...)
self:make_target(element) self:make_target(element)
element.mincount, element.maxcount = self:parse_boundaries(element.count) element.mincount, element.maxcount = utils.parse_boundaries(element.count)
element.minargs, element.maxargs = self:parse_boundaries(element.args) element.minargs, element.maxargs = utils.parse_boundaries(element.args)
table.insert(self.elements, element) table.insert(self.elements, element)
@@ -164,8 +137,8 @@ function Parser:flag(name, ...)
self:make_target(element) self:make_target(element)
element.mincount, element.maxcount = self:parse_boundaries(element.count) element.mincount, element.maxcount = utils.parse_boundaries(element.count)
element.minargs, element.maxargs = self:parse_boundaries(element.args) element.minargs, element.maxargs = utils.parse_boundaries(element.args)
table.insert(self.elements, element) table.insert(self.elements, element)
@@ -196,8 +169,8 @@ function Parser:command(name, ...)
self:make_target(command) self:make_target(command)
command.mincount, command.maxcount = self:parse_boundaries(command.count) command.mincount, command.maxcount = utils.parse_boundaries(command.count)
command.minargs, command.maxargs = self:parse_boundaries(command.args) command.minargs, command.maxargs = utils.parse_boundaries(command.args)
table.insert(self.elements, command) table.insert(self.elements, command)

31
src/utils.lua Normal file
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@@ -0,0 +1,31 @@
local utils = {}
function utils.parse_boundaries(boundaries)
if tonumber(boundaries) then
return tonumber(boundaries), tonumber(boundaries)
end
if boundaries == "*" then
return 0, math.huge
end
if boundaries == "+" then
return 1, math.huge
end
if boundaries == "?" then
return 0, 1
end
if boundaries:match "^%d+%-%d+$" then
local min, max = boundaries:match "^(%d+)%-(%d+)$"
return tonumber(min), tonumber(max)
end
if boundaries:match "^%d+%+$" then
local min = boundaries:match "^(%d+)%+$"
return tonumber(min), math.huge
end
end
return utils