162 lines
5.7 KiB
Lua
162 lines
5.7 KiB
Lua
--[[
|
|
This file is part of parser.lua - table based parsing
|
|
Copyright (C) 2019 Soni L.
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Affero General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Affero General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Affero General Public License
|
|
along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
--]]
|
|
|
|
local parser = require "parser"
|
|
|
|
local caseno = 0
|
|
local function case()
|
|
caseno = caseno + 1
|
|
return caseno
|
|
end
|
|
|
|
do -- trim left spaces
|
|
local defs = {}
|
|
defs.self = defs
|
|
defs[' '] = "whitespace"
|
|
defs['\n'] = "whitespace"
|
|
defs['\r'] = "whitespace"
|
|
defs['\t'] = "whitespace"
|
|
defs['\f'] = "whitespace"
|
|
defs['\v'] = "whitespace"
|
|
defs.whitespace = "self"
|
|
defs[''] = function(state, token)
|
|
state[#state + 1] = token
|
|
if #state > 20 then
|
|
state[1] = table.concat(state)
|
|
for i=#state, 2, -1 do
|
|
state[i] = nil
|
|
end
|
|
end
|
|
return "start"
|
|
end
|
|
defs.start = {}
|
|
defs.start.self = defs.start
|
|
defs.start[''] = function(state, token)
|
|
state[#state + 1] = token
|
|
if #state > 20 then
|
|
state[1] = table.concat(state)
|
|
for i=#state, 2, -1 do
|
|
state[i] = nil
|
|
end
|
|
end
|
|
return "self"
|
|
end
|
|
for k,v in ipairs({"hello", " hello", "\t \v \n\r hello"}) do
|
|
local state, err = parser.parse(defs, v)
|
|
local case = case()
|
|
if not state then
|
|
print(case, err)
|
|
else
|
|
assert(table.concat(state) == "hello")
|
|
end
|
|
end
|
|
end -- trim left spaces
|
|
|
|
do -- lua tokens
|
|
local luatokens = require "luatokens"
|
|
local tokens = luatokens.defs
|
|
local state, err, etoken, estate = parser.parse(tokens, [["hello world"]])
|
|
local case = case()
|
|
if not state then
|
|
print(case, "---- IN TOKENS ----")
|
|
print(case, err, etoken)
|
|
for i,v in pairs(estate) do
|
|
print(case, i, v)
|
|
end
|
|
print(case, "---- OUT TOKENS ----")
|
|
else
|
|
assert(state[1] == luatokens.tokens.TK_STRING)
|
|
assert(state[2] == "hello world")
|
|
end
|
|
end -- lua tokens
|
|
|
|
do -- more lua tokens
|
|
local luatokens = require "luatokens"
|
|
local tokens = luatokens.defs
|
|
local state, err, etoken, estate = parser.parse(tokens, [["\a\b\f\n\r\t\v\\\"\'\z \x41\65\
|
|
"]])
|
|
local case = case()
|
|
if not state then
|
|
print(case, "---- IN TOKENS ----")
|
|
print(case, err, etoken)
|
|
for i,v in pairs(estate) do
|
|
print(case, i, v)
|
|
end
|
|
print(case, "---- OUT TOKENS ----")
|
|
else
|
|
assert(state[1] == luatokens.tokens.TK_STRING)
|
|
assert(state[2] == "\7\8\12\10\13\9\11\92\34\39\65\65\10")
|
|
end
|
|
end -- lua tokens
|
|
|
|
do -- even more lua tokens
|
|
local luatokens = require "luatokens"
|
|
local tokens = luatokens.defs
|
|
local state, err, etoken, estate = parser.parse(tokens, [["\u{000000000000000000000000000000000000000000000000000000000000041}"]])
|
|
local case = case()
|
|
if not state then
|
|
print(case, "---- IN TOKENS ----")
|
|
print(case, err, etoken)
|
|
for i,v in pairs(estate) do
|
|
print(case, i, v)
|
|
end
|
|
print(case, "---- OUT TOKENS ----")
|
|
else
|
|
assert(state[1] == luatokens.tokens.TK_STRING)
|
|
assert(state[2] == "A")
|
|
end
|
|
end -- lua tokens
|
|
|
|
do -- even more lua tokens
|
|
local luatokens = require "luatokens"
|
|
local tokens = luatokens.defs
|
|
local state, err, etoken, estate = parser.parse(tokens, [["\u{7F}""\u{80}""\u{7FF}""\u{800}""\u{FFFF}""\u{10000}""\u{1FFFFF}""\u{200000}""\u{3FFFFFF}""\u{4000000}""\u{7FFFFFFF}"]])
|
|
local case = case()
|
|
if not state then
|
|
print(case, "---- IN TOKENS ----")
|
|
print(case, err, etoken)
|
|
for i,v in pairs(estate) do
|
|
print(case, i, v)
|
|
end
|
|
print(case, "---- OUT TOKENS ----")
|
|
else
|
|
assert(table.remove(state, 1) == luatokens.tokens.TK_STRING)
|
|
assert(table.remove(state, 1) == "\127")
|
|
assert(table.remove(state, 1) == luatokens.tokens.TK_STRING)
|
|
assert(table.remove(state, 1) == "\194\128")
|
|
assert(table.remove(state, 1) == luatokens.tokens.TK_STRING)
|
|
assert(table.remove(state, 1) == "\223\191")
|
|
assert(table.remove(state, 1) == luatokens.tokens.TK_STRING)
|
|
assert(table.remove(state, 1) == "\224\160\128")
|
|
assert(table.remove(state, 1) == luatokens.tokens.TK_STRING)
|
|
assert(table.remove(state, 1) == "\239\191\191")
|
|
assert(table.remove(state, 1) == luatokens.tokens.TK_STRING)
|
|
assert(table.remove(state, 1) == "\240\144\128\128")
|
|
assert(table.remove(state, 1) == luatokens.tokens.TK_STRING)
|
|
assert(table.remove(state, 1) == "\247\191\191\191")
|
|
assert(table.remove(state, 1) == luatokens.tokens.TK_STRING)
|
|
assert(table.remove(state, 1) == "\248\136\128\128\128")
|
|
assert(table.remove(state, 1) == luatokens.tokens.TK_STRING)
|
|
assert(table.remove(state, 1) == "\251\191\191\191\191")
|
|
assert(table.remove(state, 1) == luatokens.tokens.TK_STRING)
|
|
assert(table.remove(state, 1) == "\252\132\128\128\128\128")
|
|
assert(table.remove(state, 1) == luatokens.tokens.TK_STRING)
|
|
assert(table.remove(state, 1) == "\253\191\191\191\191\191")
|
|
end
|
|
end -- lua tokens
|