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|
// Generated by re2js
// re2js $INPUT -o $OUTPUT
const INT = 1
const FLOAT = 2
const NAN = 3
function lex(yyinput) {
let yycursor = 0
{
let yych = 0
let yyaccept = 0
let yystate = 0
yyl: while (true) {
switch (yystate) {
case 0:
yych = yyinput.charCodeAt(yycursor)
yycursor += 1;
switch (yych) {
case 0x2E:
yystate = 3
continue yyl
case 0x30:
yystate = 4
continue yyl
case 0x31:
case 0x32:
case 0x33:
case 0x34:
case 0x35:
case 0x36:
case 0x37:
case 0x38:
case 0x39:
yystate = 5
continue yyl
default:
yystate = 1
continue yyl
}
case 1:
yystate = 2
continue yyl
case 2:
{ return NAN }
case 3:
yych = yyinput.charCodeAt(yycursor)
switch (yych) {
case 0x30:
case 0x31:
case 0x32:
case 0x33:
case 0x34:
case 0x35:
case 0x36:
case 0x37:
case 0x38:
case 0x39:
yycursor += 1;
yystate = 7
continue yyl
default:
yystate = 2
continue yyl
}
case 4:
yyaccept = 0;
yymarker = yycursor;
yych = yyinput.charCodeAt(yycursor)
switch (yych) {
case 0x2E:
yycursor += 1;
yystate = 7
continue yyl
case 0x30:
case 0x31:
case 0x32:
case 0x33:
case 0x34:
case 0x35:
case 0x36:
case 0x37:
case 0x38:
case 0x39:
yycursor += 1;
yystate = 9
continue yyl
case 0x45:
case 0x65:
yycursor += 1;
yystate = 11
continue yyl
default:
yystate = 2
continue yyl
}
case 5:
yyaccept = 1;
yymarker = yycursor;
yych = yyinput.charCodeAt(yycursor)
switch (yych) {
case 0x2E:
yycursor += 1;
yystate = 7
continue yyl
case 0x30:
case 0x31:
case 0x32:
case 0x33:
case 0x34:
case 0x35:
case 0x36:
case 0x37:
case 0x38:
case 0x39:
yycursor += 1;
yystate = 5
continue yyl
case 0x45:
case 0x65:
yycursor += 1;
yystate = 11
continue yyl
default:
yystate = 6
continue yyl
}
case 6:
{ return INT }
case 7:
yyaccept = 2;
yymarker = yycursor;
yych = yyinput.charCodeAt(yycursor)
switch (yych) {
case 0x30:
case 0x31:
case 0x32:
case 0x33:
case 0x34:
case 0x35:
case 0x36:
case 0x37:
case 0x38:
case 0x39:
yycursor += 1;
yystate = 7
continue yyl
case 0x45:
case 0x65:
yycursor += 1;
yystate = 11
continue yyl
default:
yystate = 8
continue yyl
}
case 8:
{ return FLOAT }
case 9:
yych = yyinput.charCodeAt(yycursor)
switch (yych) {
case 0x2E:
yycursor += 1;
yystate = 7
continue yyl
case 0x30:
case 0x31:
case 0x32:
case 0x33:
case 0x34:
case 0x35:
case 0x36:
case 0x37:
case 0x38:
case 0x39:
yycursor += 1;
yystate = 9
continue yyl
case 0x45:
case 0x65:
yycursor += 1;
yystate = 11
continue yyl
default:
yystate = 10
continue yyl
}
case 10:
yycursor = yymarker;
switch (yyaccept) {
case 0:
yystate = 2
continue yyl
case 1:
yystate = 6
continue yyl
default:
yystate = 8
continue yyl
}
case 11:
yych = yyinput.charCodeAt(yycursor)
switch (yych) {
case 0x2B:
case 0x2D:
yycursor += 1;
yystate = 12
continue yyl
case 0x30:
case 0x31:
case 0x32:
case 0x33:
case 0x34:
case 0x35:
case 0x36:
case 0x37:
case 0x38:
case 0x39:
yycursor += 1;
yystate = 13
continue yyl
default:
yystate = 10
continue yyl
}
case 12:
yych = yyinput.charCodeAt(yycursor)
switch (yych) {
case 0x30:
case 0x31:
case 0x32:
case 0x33:
case 0x34:
case 0x35:
case 0x36:
case 0x37:
case 0x38:
case 0x39:
yycursor += 1;
yystate = 13
continue yyl
default:
yystate = 10
continue yyl
}
case 13:
yych = yyinput.charCodeAt(yycursor)
switch (yych) {
case 0x30:
case 0x31:
case 0x32:
case 0x33:
case 0x34:
case 0x35:
case 0x36:
case 0x37:
case 0x38:
case 0x39:
yycursor += 1;
yystate = 13
continue yyl
default:
yystate = 8
continue yyl
}
default:
throw "internal lexer error"
}
}
}
}
function test(s, n) {
if (lex(s) != n) throw "error!"
}
test("123\0", INT)
test("123.4567\0", FLOAT)
|
