mirror of git://gcc.gnu.org/git/gcc.git
117 lines
1.8 KiB
Go
117 lines
1.8 KiB
Go
// Copyright 2011 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package syntax
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import (
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"testing"
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)
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var compileTests = []struct {
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Regexp string
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Prog string
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}{
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{"a", ` 0 fail
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1* rune1 "a" -> 2
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2 match
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`},
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{"[A-M][n-z]", ` 0 fail
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1* rune "AM" -> 2
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2 rune "nz" -> 3
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3 match
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`},
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{"", ` 0 fail
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1* nop -> 2
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2 match
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`},
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{"a?", ` 0 fail
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1 rune1 "a" -> 3
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2* alt -> 1, 3
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3 match
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`},
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{"a??", ` 0 fail
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1 rune1 "a" -> 3
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2* alt -> 3, 1
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3 match
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`},
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{"a+", ` 0 fail
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1* rune1 "a" -> 2
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2 alt -> 1, 3
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3 match
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`},
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{"a+?", ` 0 fail
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1* rune1 "a" -> 2
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2 alt -> 3, 1
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3 match
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`},
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{"a*", ` 0 fail
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1 rune1 "a" -> 2
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2* alt -> 1, 3
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3 match
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`},
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{"a*?", ` 0 fail
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1 rune1 "a" -> 2
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2* alt -> 3, 1
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3 match
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`},
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{"a+b+", ` 0 fail
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1* rune1 "a" -> 2
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2 alt -> 1, 3
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3 rune1 "b" -> 4
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4 alt -> 3, 5
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5 match
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`},
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{"(a+)(b+)", ` 0 fail
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1* cap 2 -> 2
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2 rune1 "a" -> 3
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3 alt -> 2, 4
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4 cap 3 -> 5
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5 cap 4 -> 6
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6 rune1 "b" -> 7
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7 alt -> 6, 8
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8 cap 5 -> 9
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9 match
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`},
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{"a+|b+", ` 0 fail
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1 rune1 "a" -> 2
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2 alt -> 1, 6
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3 rune1 "b" -> 4
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4 alt -> 3, 6
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5* alt -> 1, 3
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6 match
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`},
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{"A[Aa]", ` 0 fail
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1* rune1 "A" -> 2
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2 rune "A"/i -> 3
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3 match
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`},
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{"(?:(?:^).)", ` 0 fail
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1* empty 4 -> 2
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2 anynotnl -> 3
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3 match
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`},
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}
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func TestCompile(t *testing.T) {
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for _, tt := range compileTests {
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re, _ := Parse(tt.Regexp, Perl)
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p, _ := Compile(re)
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s := p.String()
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if s != tt.Prog {
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t.Errorf("compiled %#q:\n--- have\n%s---\n--- want\n%s---", tt.Regexp, s, tt.Prog)
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}
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}
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}
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func BenchmarkEmptyOpContext(b *testing.B) {
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for i := 0; i < b.N; i++ {
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var r1 rune = -1
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for _, r2 := range "foo, bar, baz\nsome input text.\n" {
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EmptyOpContext(r1, r2)
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r1 = r2
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}
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EmptyOpContext(r1, -1)
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}
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}
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