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|
#
# @LANG: ruby
#
%%{
machine atoi3;
action begin {
neg = false;
val = 0;
}
action see_neg {
neg = true;
}
action add_digit {
val = val * 10 + (fc - "0"[0]);
}
action finish {
val = -1 * val if neg
}
action print {
puts val;
}
atoi = (('-' @ see_neg | '+') ? (digit @ add_digit) +) > begin % finish;
main := atoi '\n' @ print;
}%%
%% write data;
def run_machine( data )
p = 0;
pe = data.length
cs = 0
val = 0;
neg = false;
%% write init;
%% write exec;
if cs >= atoi3_first_final
puts "ACCEPT"
else
puts "FAIL"
end
end
inp = [
"1\n",
"12\n",
"222222\n",
"+2123\n",
"213 3213\n",
"-12321\n",
"--123\n",
"-99\n",
" -3000\n",
]
inp.each { |str| run_machine(str) }
=begin _____OUTPUT_____
1
ACCEPT
12
ACCEPT
222222
ACCEPT
2123
ACCEPT
FAIL
-12321
ACCEPT
FAIL
-99
ACCEPT
FAIL
=end _____OUTPUT_____
|
