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// Generated by re2java
// re2java $INPUT -o $OUTPUT --input-encoding utf8
// This example supports multiple input encodings: UTF-8 and UTF-32.
// Both lexers are generated from the same rules block, and the use
// blocks add only encoding-specific configurations.
class Main {
static boolean lex_utf8(int[] yyinput) {
int yycursor = 0;
int yymarker = 0;
{
int yych = 0;
int yystate = 0;
yyl: while (true) {
switch (yystate) {
case 0:
yych = yyinput[yycursor];
yycursor += 1;
switch (yych) {
case 0xE2:
yystate = 3;
continue yyl;
default:
yystate = 1;
continue yyl;
}
case 1:
yystate = 2;
continue yyl;
case 2:
{ return false; }
case 3:
yymarker = yycursor;
yych = yyinput[yycursor];
switch (yych) {
case 0x88:
yycursor += 1;
yystate = 4;
continue yyl;
default:
yystate = 2;
continue yyl;
}
case 4:
yych = yyinput[yycursor];
switch (yych) {
case 0x80:
yycursor += 1;
yystate = 6;
continue yyl;
default:
yystate = 5;
continue yyl;
}
case 5:
yycursor = yymarker;
yystate = 2;
continue yyl;
case 6:
yych = yyinput[yycursor];
switch (yych) {
case 0x78:
yycursor += 1;
yystate = 7;
continue yyl;
default:
yystate = 5;
continue yyl;
}
case 7:
yych = yyinput[yycursor];
switch (yych) {
case 0x20:
yycursor += 1;
yystate = 8;
continue yyl;
default:
yystate = 5;
continue yyl;
}
case 8:
yych = yyinput[yycursor];
switch (yych) {
case 0xE2:
yycursor += 1;
yystate = 9;
continue yyl;
default:
yystate = 5;
continue yyl;
}
case 9:
yych = yyinput[yycursor];
switch (yych) {
case 0x88:
yycursor += 1;
yystate = 10;
continue yyl;
default:
yystate = 5;
continue yyl;
}
case 10:
yych = yyinput[yycursor];
switch (yych) {
case 0x83:
yycursor += 1;
yystate = 11;
continue yyl;
default:
yystate = 5;
continue yyl;
}
case 11:
yych = yyinput[yycursor];
switch (yych) {
case 0x79:
yycursor += 1;
yystate = 12;
continue yyl;
default:
yystate = 5;
continue yyl;
}
case 12:
{ return true; }
default:
throw new IllegalStateException("internal lexer error");
}
}
}
}
static boolean lex_utf32(int[] yyinput) {
int yycursor = 0;
int yymarker = 0;
{
int yych = 0;
int yystate = 0;
yyl: while (true) {
switch (yystate) {
case 0:
yych = yyinput[yycursor];
yycursor += 1;
if (yych == 0x00002200) {
yystate = 2;
continue yyl;
}
yystate = 1;
continue yyl;
case 1:
{ return false; }
case 2:
yymarker = yycursor;
yych = yyinput[yycursor];
if (yych != 0x00000078) {
yystate = 1;
continue yyl;
}
yycursor += 1;
yych = yyinput[yycursor];
if (yych == 0x00000020) {
yycursor += 1;
yystate = 4;
continue yyl;
}
yystate = 3;
continue yyl;
case 3:
yycursor = yymarker;
yystate = 1;
continue yyl;
case 4:
yych = yyinput[yycursor];
if (yych != 0x00002203) {
yystate = 3;
continue yyl;
}
yycursor += 1;
yych = yyinput[yycursor];
if (yych != 0x00000079) {
yystate = 3;
continue yyl;
}
yycursor += 1;
{ return true; }
default:
throw new IllegalStateException("internal lexer error");
}
}
}
}
public static void main(String []args) {
// we have to use `int`, because `byte`in Java cannot represent values greater than 127
int[] s_utf8 = new int[]{0xe2, 0x88, 0x80, 0x78, 0x20, 0xe2, 0x88, 0x83, 0x79};
assert lex_utf8(s_utf8);
int[] s_utf32 = new int[]{0x2200, 0x78, 0x20, 0x2203, 0x79};
assert lex_utf32(s_utf32);
}
};
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