--[[ Expression Language 1 Prefix Parser Test Script
     H. Conrad CunninL1gham, Professor
     Computer and Information Science
     University of Mississippi

Developed for CSci 450/503, Organization of Programming Languaages,
Fall 2016

1234567890123456789012345678901234567890123456789012345678901234567890

2016-09-21: Expression Language 1 prefix parser partial test script
            adapted from infix parser test script

--]]

-- Set module "parameters"

UTILITIES   = "utilities"
PARSER      = "parser_prefix_01"
ABS_SYNTAX  = "abs_syn_01"
VALUES      = "values_01"

-- Import Utilities module

local util = require(UTILITIES)
local show_data, treeConcat = util.show_data, util.treeConcat
      -- printTree not currently used

-- Import Parser module

local par   = require(PARSER)
local parse = par.parse


-- PARTIAL TESTING

print(
   "\nLIMITIED TESTING OF PREFIX PARSER FOR EXPRESSION LANGUAGE 1.\n")

local varx = "x"
print("input:  " .. varx)
print("output: " .. treeConcat(parse(varx)))

local varxyz = " xyz_1 "
print("input:  " .. varxyz)
print("output: " .. treeConcat(parse(varxyz)))

local int370 = "370"
print("input:  " .. int370)
print("output: " .. treeConcat(parse(int370)))

local int37   = "    37     "
print("input:  " .. int37)
print("output: ".. treeConcat(parse(int37)))

local neg99   = " -99 "
print("input:  " .. neg99)
print("output: ".. treeConcat(parse(neg99)))

local negx = "-x"
print("input:  " .. negx)
print("output: " .. treeConcat(parse(negx)))

local negy = " -   y "
print("input:  " .. negy)
print("output: " .. treeConcat(parse(negy)))

local negate99   = "(neg 99)"
print("input:  " .. negate99)
print("output: " .. treeConcat(parse(negate99)))

local term2 = "(+ a 24)"
print("input:  " .. term2)
print("output: " .. treeConcat(parse(term2)))

local term3 = "(- (+ a 24) x_yz)"
print("input:  " .. term3)
print("output: " .. treeConcat(parse(term3)))

local factor2 = "(* a  24) "
print("input:  " .. factor2)
print("output: " .. treeConcat(parse(factor2)))

local factor3 = "(/ (* a  24) xyz)"
print("input: " .. factor3)
print("output: " .. treeConcat(parse(factor3)))

local mix1 = "(+ 2 (* 3 (* 4 6)))"
print("input: " .. mix1)
print("output: " .. treeConcat(parse(mix1)))

local mix2 = " (+ (* xx  2)  (* 3 (- y z)))"
print("input: " .. mix2) 
print("output: " .. treeConcat(parse(mix2)))

local eq1 = "(== abc 34)"
print("input: " .. eq1)
print("output: " .. treeConcat(parse(eq1)))

local eq2 = "(== (+ x (* 3 y)) (- 34 1))"
print("input: " .. eq2)
print("output: " .. treeConcat(parse(eq2)))

local if1 = "(if (< a 3) (+ x 1) (- 3 2))"
print("input: " .. if1)
print("output: " .. treeConcat(parse(if1)))

local if2 = "(if (<= a  3) (+ x 1) (if (>= x 7) 3 x))"
print("input: " .. if2)
print("output: " .. treeConcat(parse(if2)))

local negex1 = "(neg (+ x 3))"
print("input: " .. negex1)
print("output: " .. treeConcat(parse(negex1)))