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Mini Shell
Mini Shell
// Code generated by re2c, DO NOT EDIT.
//line "go/eof/01_sentinel.re":1
//go:generate re2go $INPUT -o $OUTPUT
package main
// Expect a null-terminated string.
func lex(str string) int {
var cur int
count := 0
for {
//line "go/eof/01_sentinel.go":13
{
var yych byte
yych = str[cur]
switch (yych) {
case 0x00:
goto yy1
case ' ':
goto yy3
case 'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z':
goto yy5
default:
goto yy2
}
yy1:
cur += 1
//line "go/eof/01_sentinel.re":16
{ return count }
//line "go/eof/01_sentinel.go":31
yy2:
cur += 1
//line "go/eof/01_sentinel.re":15
{ return -1 }
//line "go/eof/01_sentinel.go":36
yy3:
cur += 1
yych = str[cur]
switch (yych) {
case ' ':
goto yy3
default:
goto yy4
}
yy4:
//line "go/eof/01_sentinel.re":18
{ continue }
//line "go/eof/01_sentinel.go":49
yy5:
cur += 1
yych = str[cur]
switch (yych) {
case 'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z':
goto yy5
default:
goto yy6
}
yy6:
//line "go/eof/01_sentinel.re":17
{ count += 1; continue }
//line "go/eof/01_sentinel.go":62
}
//line "go/eof/01_sentinel.re":19
}
}
func main() {
assert_eq := func(x, y int) { if x != y { panic("error") } }
assert_eq(lex("\000"), 0)
assert_eq(lex("one two three\000"), 3)
assert_eq(lex("f0ur\000"), -1)
}
Zerion Mini Shell 1.0