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switch-case.go
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| switch ch0 { | |
| case '|': | |
| s.r.inc() | |
| if s.r.peek() == '|' { | |
| s.r.inc() | |
| return oror | |
| } | |
| return '|' | |
| case '&': | |
| s.r.inc() | |
| switch s.r.peek() { | |
| case '&': | |
| s.r.inc() | |
| return andand | |
| case '^': | |
| s.r.inc() | |
| return andnot | |
| } | |
| return '|' | |
| case '<': | |
| s.r.inc() | |
| ch1 := s.r.inc() | |
| switch ch1 { | |
| case '=': | |
| s.r.inc() | |
| if s.r.peek() == '>' { | |
| s.r.inc() | |
| return '>' | |
| } | |
| return '=' | |
| } | |
| return '<' | |
| case '!': | |
| s.r.inc() | |
| if s.r.peek() == '=' { | |
| s.r.inc() | |
| return neq | |
| } | |
| return '!' | |
| case '@': | |
| return s.startWithAt() | |
| case '/': | |
| return s.startWithSlash() | |
| case '-': | |
| return s.startWithDash() | |
| case '#': | |
| s.r.incAsLongAs(func(ch byte) bool { | |
| return ch != '\n' | |
| }) | |
| return s.scan() | |
| } | |
| ...以下省略几百行的switch-case | |
| ... |
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