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/* Generated by re2c */
// re2c $INPUT -o $OUTPUT --loop-switch -i
#include <assert.h>
// expect a null-terminated string
static int lex(const char *YYCURSOR)
{
int count = 0;
loop:
{
char yych;
unsigned int yystate = 0;
for (;;) {
switch (yystate) {
case 0:
yych = *YYCURSOR;
++YYCURSOR;
switch (yych) {
case 0x00:
yystate = 1;
continue;
case ' ':
yystate = 3;
continue;
case 'a':
case 'b':
case 'c':
case 'd':
case 'e':
case 'f':
case 'g':
case 'h':
case 'i':
case 'j':
case 'k':
case 'l':
case 'm':
case 'n':
case 'o':
case 'p':
case 'q':
case 'r':
case 's':
case 't':
case 'u':
case 'v':
case 'w':
case 'x':
case 'y':
case 'z':
yystate = 5;
continue;
default:
yystate = 2;
continue;
}
case 1: { return count; }
case 2: { return -1; }
case 3:
yych = *YYCURSOR;
switch (yych) {
case ' ':
++YYCURSOR;
yystate = 3;
continue;
default:
yystate = 4;
continue;
}
case 4: { goto loop; }
case 5:
yych = *YYCURSOR;
switch (yych) {
case 'a':
case 'b':
case 'c':
case 'd':
case 'e':
case 'f':
case 'g':
case 'h':
case 'i':
case 'j':
case 'k':
case 'l':
case 'm':
case 'n':
case 'o':
case 'p':
case 'q':
case 'r':
case 's':
case 't':
case 'u':
case 'v':
case 'w':
case 'x':
case 'y':
case 'z':
++YYCURSOR;
yystate = 5;
continue;
default:
yystate = 6;
continue;
}
case 6: { ++count; goto loop; }
}
}
}
}
int main()
{
assert(lex("") == 0);
assert(lex("one two three") == 3);
assert(lex("f0ur") == -1);
return 0;
}
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