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/* Generated by re2d */
// re2d $INPUT -o $OUTPUT -i
enum Result{ OK, FAIL };
private Result lex(const(char)* s) {
const(char)* yycursor = s, yymarker;
{
char yych;
uint yyaccept = 0;
yych = *yycursor;
switch (yych) {
case '.': goto yy3;
case '0': goto yy4;
case '1': .. case '9': goto yy5;
default: goto yy1;
}
yy1:
++yycursor;
yy2:
{ return Result.FAIL; }
yy3:
yych = *++yycursor;
switch (yych) {
case '0': .. case '9': goto yy7;
default: goto yy2;
}
yy4:
yyaccept = 0;
yych = *(yymarker = ++yycursor);
switch (yych) {
case '.': goto yy7;
case '0': .. case '9': goto yy9;
case 'E':
case 'e': goto yy11;
default: goto yy2;
}
yy5:
yyaccept = 1;
yych = *(yymarker = ++yycursor);
switch (yych) {
case '.': goto yy7;
case '0': .. case '9': goto yy5;
case 'E':
case 'e': goto yy11;
default: goto yy6;
}
yy6:
{ return Result.OK; }
yy7:
yyaccept = 2;
yych = *(yymarker = ++yycursor);
switch (yych) {
case '0': .. case '9': goto yy7;
case 'E':
case 'e': goto yy11;
default: goto yy8;
}
yy8:
{ return Result.OK; }
yy9:
yych = *++yycursor;
switch (yych) {
case '.': goto yy7;
case '0': .. case '9': goto yy9;
case 'E':
case 'e': goto yy11;
default: goto yy10;
}
yy10:
yycursor = yymarker;
switch (yyaccept) {
case 0: goto yy2;
case 1: goto yy6;
default: goto yy8;
}
yy11:
yych = *++yycursor;
switch (yych) {
case '+':
case '-': goto yy12;
case '0': .. case '9': goto yy13;
default: goto yy10;
}
yy12:
yych = *++yycursor;
switch (yych) {
case '0': .. case '9': goto yy13;
default: goto yy10;
}
yy13:
yych = *++yycursor;
switch (yych) {
case '0': .. case '9': goto yy13;
default: goto yy8;
}
}
}
void main() {
assert(lex("123") == Result.OK);
assert(lex("123.4567") == Result.OK);
}
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