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Mini Shell
Mini Shell
// Code generated by re2c, DO NOT EDIT.
//line "go/eof/03_eof_rule.re":1
//go:generate re2go $INPUT -o $OUTPUT
package main
// Expects a null-terminated string.
func lex(str string) int {
var cur, mar int
lim := len(str) - 1 // lim points at the terminating null
count := 0
for {
//line "go/eof/03_eof_rule.go":14
{
var yych byte
yych = str[cur]
switch (yych) {
case ' ':
goto yy3
case '\'':
goto yy5
default:
if (lim <= cur) {
goto yy10
}
goto yy1
}
yy1:
cur += 1
yy2:
//line "go/eof/03_eof_rule.re":22
{ return -1 }
//line "go/eof/03_eof_rule.go":34
yy3:
cur += 1
yych = str[cur]
switch (yych) {
case ' ':
goto yy3
default:
goto yy4
}
yy4:
//line "go/eof/03_eof_rule.re":25
{ continue }
//line "go/eof/03_eof_rule.go":47
yy5:
cur += 1
mar = cur
yych = str[cur]
if (yych >= 0x01) {
goto yy7
}
if (lim <= cur) {
goto yy2
}
yy6:
cur += 1
yych = str[cur]
yy7:
switch (yych) {
case '\'':
goto yy8
case '\\':
goto yy9
default:
if (lim <= cur) {
goto yy11
}
goto yy6
}
yy8:
cur += 1
//line "go/eof/03_eof_rule.re":24
{ count += 1; continue }
//line "go/eof/03_eof_rule.go":77
yy9:
cur += 1
yych = str[cur]
if (yych <= 0x00) {
if (lim <= cur) {
goto yy11
}
goto yy6
}
goto yy6
yy10:
//line "go/eof/03_eof_rule.re":23
{ return count }
//line "go/eof/03_eof_rule.go":91
yy11:
cur = mar
goto yy2
}
//line "go/eof/03_eof_rule.re":26
}
}
func main() {
assert_eq := func(x, y int) { if x != y { panic("error") } }
assert_eq(lex("\000"), 0)
assert_eq(lex("'qu\000tes' 'are' 'fine: \\'' \000"), 3)
assert_eq(lex("'unterminated\\'\000"), -1)
}
Zerion Mini Shell 1.0