How to use Lt method of got Package

Best Got code snippet using got.Lt

token_test.go

Source:token_test.go

1// Copyright 2010 The Go Authors. All rights reserved.2// Use of this source code is governed by a BSD-style3// license that can be found in the LICENSE file.4package html5import (6	"bytes"7	"io"8	"io/ioutil"9	"reflect"10	"runtime"11	"strings"12	"testing"13)14type tokenTest struct {15	// A short description of the test case.16	desc string17	// The HTML to parse.18	html string19	// The string representations of the expected tokens, joined by '$'.20	golden string21}22var tokenTests = []tokenTest{23	{24		"empty",25		"",26		"",27	},28	// A single text node. The tokenizer should not break text nodes on whitespace,29	// nor should it normalize whitespace within a text node.30	{31		"text",32		"foo  bar",33		"foo  bar",34	},35	// An entity.36	{37		"entity",38		"one &lt; two",39		"one &lt; two",40	},41	// A start, self-closing and end tag. The tokenizer does not care if the start42	// and end tokens don't match; that is the job of the parser.43	{44		"tags",45		"<a>b<c/>d</e>",46		"<a>$b$<c/>$d$</e>",47	},48	// Angle brackets that aren't a tag.49	{50		"not a tag #0",51		"<",52		"&lt;",53	},54	{55		"not a tag #1",56		"</",57		"&lt;/",58	},59	{60		"not a tag #2",61		"</>",62		"<!---->",63	},64	{65		"not a tag #3",66		"a</>b",67		"a$<!---->$b",68	},69	{70		"not a tag #4",71		"</ >",72		"<!-- -->",73	},74	{75		"not a tag #5",76		"</.",77		"<!--.-->",78	},79	{80		"not a tag #6",81		"</.>",82		"<!--.-->",83	},84	{85		"not a tag #7",86		"a < b",87		"a &lt; b",88	},89	{90		"not a tag #8",91		"<.>",92		"&lt;.&gt;",93	},94	{95		"not a tag #9",96		"a<<<b>>>c",97		"a&lt;&lt;$<b>$&gt;&gt;c",98	},99	{100		"not a tag #10",101		"if x<0 and y < 0 then x*y>0",102		"if x&lt;0 and y &lt; 0 then x*y&gt;0",103	},104	{105		"not a tag #11",106		"<<p>",107		"&lt;$<p>",108	},109	// EOF in a tag name.110	{111		"tag name eof #0",112		"<a",113		"",114	},115	{116		"tag name eof #1",117		"<a ",118		"",119	},120	{121		"tag name eof #2",122		"a<b",123		"a",124	},125	{126		"tag name eof #3",127		"<a><b",128		"<a>",129	},130	{131		"tag name eof #4",132		`<a x`,133		``,134	},135	// Some malformed tags that are missing a '>'.136	{137		"malformed tag #0",138		`<p</p>`,139		`<p< p="">`,140	},141	{142		"malformed tag #1",143		`<p </p>`,144		`<p <="" p="">`,145	},146	{147		"malformed tag #2",148		`<p id`,149		``,150	},151	{152		"malformed tag #3",153		`<p id=`,154		``,155	},156	{157		"malformed tag #4",158		`<p id=>`,159		`<p id="">`,160	},161	{162		"malformed tag #5",163		`<p id=0`,164		``,165	},166	{167		"malformed tag #6",168		`<p id=0</p>`,169		`<p id="0&lt;/p">`,170	},171	{172		"malformed tag #7",173		`<p id="0</p>`,174		``,175	},176	{177		"malformed tag #8",178		`<p id="0"</p>`,179		`<p id="0" <="" p="">`,180	},181	{182		"malformed tag #9",183		`<p></p id`,184		`<p>`,185	},186	// Raw text and RCDATA.187	{188		"basic raw text",189		"<script><a></b></script>",190		"<script>$&lt;a&gt;&lt;/b&gt;$</script>",191	},192	{193		"unfinished script end tag",194		"<SCRIPT>a</SCR",195		"<script>$a&lt;/SCR",196	},197	{198		"broken script end tag",199		"<SCRIPT>a</SCR ipt>",200		"<script>$a&lt;/SCR ipt&gt;",201	},202	{203		"EOF in script end tag",204		"<SCRIPT>a</SCRipt",205		"<script>$a&lt;/SCRipt",206	},207	{208		"scriptx end tag",209		"<SCRIPT>a</SCRiptx",210		"<script>$a&lt;/SCRiptx",211	},212	{213		"' ' completes script end tag",214		"<SCRIPT>a</SCRipt ",215		"<script>$a",216	},217	{218		"'>' completes script end tag",219		"<SCRIPT>a</SCRipt>",220		"<script>$a$</script>",221	},222	{223		"self-closing script end tag",224		"<SCRIPT>a</SCRipt/>",225		"<script>$a$</script>",226	},227	{228		"nested script tag",229		"<SCRIPT>a</SCRipt<script>",230		"<script>$a&lt;/SCRipt&lt;script&gt;",231	},232	{233		"script end tag after unfinished",234		"<SCRIPT>a</SCRipt</script>",235		"<script>$a&lt;/SCRipt$</script>",236	},237	{238		"script/style mismatched tags",239		"<script>a</style>",240		"<script>$a&lt;/style&gt;",241	},242	{243		"style element with entity",244		"<style>&apos;",245		"<style>$&amp;apos;",246	},247	{248		"textarea with tag",249		"<textarea><div></textarea>",250		"<textarea>$&lt;div&gt;$</textarea>",251	},252	{253		"title with tag and entity",254		"<title><b>K&amp;R C</b></title>",255		"<title>$&lt;b&gt;K&amp;R C&lt;/b&gt;$</title>",256	},257	{258		"title with trailing '&lt;' entity",259		"<title>foobar<</title>",260		"<title>$foobar&lt;$</title>",261	},262	// DOCTYPE tests.263	{264		"Proper DOCTYPE",265		"<!DOCTYPE html>",266		"<!DOCTYPE html>",267	},268	{269		"DOCTYPE with no space",270		"<!doctypehtml>",271		"<!DOCTYPE html>",272	},273	{274		"DOCTYPE with two spaces",275		"<!doctype  html>",276		"<!DOCTYPE html>",277	},278	{279		"looks like DOCTYPE but isn't",280		"<!DOCUMENT html>",281		"<!--DOCUMENT html-->",282	},283	{284		"DOCTYPE at EOF",285		"<!DOCtype",286		"<!DOCTYPE >",287	},288	// XML processing instructions.289	{290		"XML processing instruction",291		"<?xml?>",292		"<!--?xml?-->",293	},294	// Comments.295	{296		"comment0",297		"abc<b><!-- skipme --></b>def",298		"abc$<b>$<!-- skipme -->$</b>$def",299	},300	{301		"comment1",302		"a<!-->z",303		"a$<!---->$z",304	},305	{306		"comment2",307		"a<!--->z",308		"a$<!---->$z",309	},310	{311		"comment3",312		"a<!--x>-->z",313		"a$<!--x>-->$z",314	},315	{316		"comment4",317		"a<!--x->-->z",318		"a$<!--x->-->$z",319	},320	{321		"comment5",322		"a<!>z",323		"a$<!---->$z",324	},325	{326		"comment6",327		"a<!->z",328		"a$<!----->$z",329	},330	{331		"comment7",332		"a<!---<>z",333		"a$<!---<>z-->",334	},335	{336		"comment8",337		"a<!--z",338		"a$<!--z-->",339	},340	{341		"comment9",342		"a<!--z-",343		"a$<!--z-->",344	},345	{346		"comment10",347		"a<!--z--",348		"a$<!--z-->",349	},350	{351		"comment11",352		"a<!--z---",353		"a$<!--z--->",354	},355	{356		"comment12",357		"a<!--z----",358		"a$<!--z---->",359	},360	{361		"comment13",362		"a<!--x--!>z",363		"a$<!--x-->$z",364	},365	// An attribute with a backslash.366	{367		"backslash",368		`<p id="a\"b">`,369		`<p id="a\" b"="">`,370	},371	// Entities, tag name and attribute key lower-casing, and whitespace372	// normalization within a tag.373	{374		"tricky",375		"<p \t\n iD=\"a&quot;B\"  foo=\"bar\"><EM>te&lt;&amp;;xt</em></p>",376		`<p id="a&#34;B" foo="bar">$<em>$te&lt;&amp;;xt$</em>$</p>`,377	},378	// A nonexistent entity. Tokenizing and converting back to a string should379	// escape the "&" to become "&amp;".380	{381		"noSuchEntity",382		`<a b="c&noSuchEntity;d">&lt;&alsoDoesntExist;&`,383		`<a b="c&amp;noSuchEntity;d">$&lt;&amp;alsoDoesntExist;&amp;`,384	},385	{386		"entity without semicolon",387		`&notit;&notin;<a b="q=z&amp=5&notice=hello&not;=world">`,388		`Â¬it;â$<a b="q=z&amp;amp=5&amp;notice=helloÂ¬=world">`,389	},390	{391		"entity with digits",392		"&frac12;",393		"Â½",394	},395	// Attribute tests:396	// http://dev.w3.org/html5/pf-summary/Overview.html#attributes397	{398		"Empty attribute",399		`<input disabled FOO>`,400		`<input disabled="" foo="">`,401	},402	{403		"Empty attribute, whitespace",404		`<input disabled FOO >`,405		`<input disabled="" foo="">`,406	},407	{408		"Unquoted attribute value",409		`<input value=yes FOO=BAR>`,410		`<input value="yes" foo="BAR">`,411	},412	{413		"Unquoted attribute value, spaces",414		`<input value = yes FOO = BAR>`,415		`<input value="yes" foo="BAR">`,416	},417	{418		"Unquoted attribute value, trailing space",419		`<input value=yes FOO=BAR >`,420		`<input value="yes" foo="BAR">`,421	},422	{423		"Single-quoted attribute value",424		`<input value='yes' FOO='BAR'>`,425		`<input value="yes" foo="BAR">`,426	},427	{428		"Single-quoted attribute value, trailing space",429		`<input value='yes' FOO='BAR' >`,430		`<input value="yes" foo="BAR">`,431	},432	{433		"Double-quoted attribute value",434		`<input value="I'm an attribute" FOO="BAR">`,435		`<input value="I&#39;m an attribute" foo="BAR">`,436	},437	{438		"Attribute name characters",439		`<meta http-equiv="content-type">`,440		`<meta http-equiv="content-type">`,441	},442	{443		"Mixed attributes",444		`a<P V="0 1" w='2' X=3 y>z`,445		`a$<p v="0 1" w="2" x="3" y="">$z`,446	},447	{448		"Attributes with a solitary single quote",449		`<p id=can't><p id=won't>`,450		`<p id="can&#39;t">$<p id="won&#39;t">`,451	},452}453func TestTokenizer(t *testing.T) {454loop:455	for _, tt := range tokenTests {456		z := NewTokenizer(strings.NewReader(tt.html))457		if tt.golden != "" {458			for i, s := range strings.Split(tt.golden, "$") {459				if z.Next() == ErrorToken {460					t.Errorf("%s token %d: want %q got error %v", tt.desc, i, s, z.Err())461					continue loop462				}463				actual := z.Token().String()464				if s != actual {465					t.Errorf("%s token %d: want %q got %q", tt.desc, i, s, actual)466					continue loop467				}468			}469		}470		z.Next()471		if z.Err() != io.EOF {472			t.Errorf("%s: want EOF got %q", tt.desc, z.Err())473		}474	}475}476func TestMaxBuffer(t *testing.T) {477	// Exceeding the maximum buffer size generates ErrBufferExceeded.478	z := NewTokenizer(strings.NewReader("<" + strings.Repeat("t", 10)))479	z.SetMaxBuf(5)480	tt := z.Next()481	if got, want := tt, ErrorToken; got != want {482		t.Fatalf("token type: got: %v want: %v", got, want)483	}484	if got, want := z.Err(), ErrBufferExceeded; got != want {485		t.Errorf("error type: got: %v want: %v", got, want)486	}487	if got, want := string(z.Raw()), "<tttt"; got != want {488		t.Fatalf("buffered before overflow: got: %q want: %q", got, want)489	}490}491func TestMaxBufferReconstruction(t *testing.T) {492	// Exceeding the maximum buffer size at any point while tokenizing permits493	// reconstructing the original input.494tests:495	for _, test := range tokenTests {496		for maxBuf := 1; ; maxBuf++ {497			r := strings.NewReader(test.html)498			z := NewTokenizer(r)499			z.SetMaxBuf(maxBuf)500			var tokenized bytes.Buffer501			for {502				tt := z.Next()503				tokenized.Write(z.Raw())504				if tt == ErrorToken {505					if err := z.Err(); err != io.EOF && err != ErrBufferExceeded {506						t.Errorf("%s: unexpected error: %v", test.desc, err)507					}508					break509				}510			}511			// Anything tokenized along with untokenized input or data left in the reader.512			assembled, err := ioutil.ReadAll(io.MultiReader(&tokenized, bytes.NewReader(z.Buffered()), r))513			if err != nil {514				t.Errorf("%s: ReadAll: %v", test.desc, err)515				continue tests516			}517			if got, want := string(assembled), test.html; got != want {518				t.Errorf("%s: reassembled html:\n got: %q\nwant: %q", test.desc, got, want)519				continue tests520			}521			// EOF indicates that we completed tokenization and hence found the max522			// maxBuf that generates ErrBufferExceeded, so continue to the next test.523			if z.Err() == io.EOF {524				break525			}526		} // buffer sizes527	} // tests528}529func TestPassthrough(t *testing.T) {530	// Accumulating the raw output for each parse event should reconstruct the531	// original input.532	for _, test := range tokenTests {533		z := NewTokenizer(strings.NewReader(test.html))534		var parsed bytes.Buffer535		for {536			tt := z.Next()537			parsed.Write(z.Raw())538			if tt == ErrorToken {539				break540			}541		}542		if got, want := parsed.String(), test.html; got != want {543			t.Errorf("%s: parsed output:\n got: %q\nwant: %q", test.desc, got, want)544		}545	}546}547func TestBufAPI(t *testing.T) {548	s := "0<a>1</a>2<b>3<a>4<a>5</a>6</b>7</a>8<a/>9"549	z := NewTokenizer(bytes.NewBufferString(s))550	var result bytes.Buffer551	depth := 0552loop:553	for {554		tt := z.Next()555		switch tt {556		case ErrorToken:557			if z.Err() != io.EOF {558				t.Error(z.Err())559			}560			break loop561		case TextToken:562			if depth > 0 {563				result.Write(z.Text())564			}565		case StartTagToken, EndTagToken:566			tn, _ := z.TagName()567			if len(tn) == 1 && tn[0] == 'a' {568				if tt == StartTagToken {569					depth++570				} else {571					depth--572				}573			}574		}575	}576	u := "14567"577	v := string(result.Bytes())578	if u != v {579		t.Errorf("TestBufAPI: want %q got %q", u, v)580	}581}582func TestConvertNewlines(t *testing.T) {583	testCases := map[string]string{584		"Mac\rDOS\r\nUnix\n":    "Mac\nDOS\nUnix\n",585		"Unix\nMac\rDOS\r\n":    "Unix\nMac\nDOS\n",586		"DOS\r\nDOS\r\nDOS\r\n": "DOS\nDOS\nDOS\n",587		"":                      "",588		"\n":                    "\n",589		"\n\r":                  "\n\n",590		"\r":                    "\n",591		"\r\n":                  "\n",592		"\r\n\n":                "\n\n",593		"\r\n\r":                "\n\n",594		"\r\n\r\n":              "\n\n",595		"\r\r":                  "\n\n",596		"\r\r\n":                "\n\n",597		"\r\r\n\n":              "\n\n\n",598		"\r\r\r\n":              "\n\n\n",599		"\r \n":                 "\n \n",600		"xyz":                   "xyz",601	}602	for in, want := range testCases {603		if got := string(convertNewlines([]byte(in))); got != want {604			t.Errorf("input %q: got %q, want %q", in, got, want)605		}606	}607}608func TestReaderEdgeCases(t *testing.T) {609	const s = "<p>An io.Reader can return (0, nil) or (n, io.EOF).</p>"610	testCases := []io.Reader{611		&zeroOneByteReader{s: s},612		&eofStringsReader{s: s},613		&stuckReader{},614	}615	for i, tc := range testCases {616		got := []TokenType{}617		z := NewTokenizer(tc)618		for {619			tt := z.Next()620			if tt == ErrorToken {621				break622			}623			got = append(got, tt)624		}625		if err := z.Err(); err != nil && err != io.EOF {626			if err != io.ErrNoProgress {627				t.Errorf("i=%d: %v", i, err)628			}629			continue630		}631		want := []TokenType{632			StartTagToken,633			TextToken,634			EndTagToken,635		}636		if !reflect.DeepEqual(got, want) {637			t.Errorf("i=%d: got %v, want %v", i, got, want)638			continue639		}640	}641}642// zeroOneByteReader is like a strings.Reader that alternates between643// returning 0 bytes and 1 byte at a time.644type zeroOneByteReader struct {645	s string646	n int647}648func (r *zeroOneByteReader) Read(p []byte) (int, error) {649	if len(p) == 0 {650		return 0, nil651	}652	if len(r.s) == 0 {653		return 0, io.EOF654	}655	r.n++656	if r.n%2 != 0 {657		return 0, nil658	}659	p[0], r.s = r.s[0], r.s[1:]660	return 1, nil661}662// eofStringsReader is like a strings.Reader but can return an (n, err) where663// n > 0 && err != nil.664type eofStringsReader struct {665	s string666}667func (r *eofStringsReader) Read(p []byte) (int, error) {668	n := copy(p, r.s)669	r.s = r.s[n:]670	if r.s != "" {671		return n, nil672	}673	return n, io.EOF674}675// stuckReader is an io.Reader that always returns no data and no error.676type stuckReader struct{}677func (*stuckReader) Read(p []byte) (int, error) {678	return 0, nil679}680const (681	rawLevel = iota682	lowLevel683	highLevel684)685func benchmarkTokenizer(b *testing.B, level int) {686	buf, err := ioutil.ReadFile("testdata/go1.html")687	if err != nil {688		b.Fatalf("could not read testdata/go1.html: %v", err)689	}690	b.SetBytes(int64(len(buf)))691	runtime.GC()692	b.ReportAllocs()693	b.ResetTimer()694	for i := 0; i < b.N; i++ {695		z := NewTokenizer(bytes.NewBuffer(buf))696		for {697			tt := z.Next()698			if tt == ErrorToken {699				if err := z.Err(); err != nil && err != io.EOF {700					b.Fatalf("tokenizer error: %v", err)701				}702				break703			}704			switch level {705			case rawLevel:706				// Calling z.Raw just returns the raw bytes of the token. It does707				// not unescape &lt; to <, or lower-case tag names and attribute keys.708				z.Raw()709			case lowLevel:710				// Caling z.Text, z.TagName and z.TagAttr returns []byte values711				// whose contents may change on the next call to z.Next.712				switch tt {713				case TextToken, CommentToken, DoctypeToken:714					z.Text()715				case StartTagToken, SelfClosingTagToken:716					_, more := z.TagName()717					for more {718						_, _, more = z.TagAttr()719					}720				case EndTagToken:721					z.TagName()722				}723			case highLevel:724				// Calling z.Token converts []byte values to strings whose validity725				// extend beyond the next call to z.Next.726				z.Token()727			}728		}729	}730}731func BenchmarkRawLevelTokenizer(b *testing.B)  { benchmarkTokenizer(b, rawLevel) }732func BenchmarkLowLevelTokenizer(b *testing.B)  { benchmarkTokenizer(b, lowLevel) }733func BenchmarkHighLevelTokenizer(b *testing.B) { benchmarkTokenizer(b, highLevel) }...

Using AI Code Generation

1import (2func main() {3	fmt.Println("a = ", a)4	fmt.Println("b = ", b)5	fmt.Println("a < b", got.Lt(a, b))6}7import (8func main() {9	fmt.Println("a = ", a)10	fmt.Println("b = ", b)11	fmt.Println("a < b", got.Lt(a, b))12}

Using AI Code Generation

1import "fmt"2func main() {3  fmt.Println(a < b)4  fmt.Println(c < d)5  fmt.Println(e < f)6  fmt.Println(g < h)7  fmt.Println(i < j)8}9GoLang: Lt() Method

Using AI Code Generation

1import (2func main() {3	fmt.Println("Enter two numbers")4	fmt.Scan(&a, &b)5	g := got.Got{a, b}6	fmt.Println("a<b", g.Lt())7}8import (9func main() {10	fmt.Println("Enter two numbers")11	fmt.Scan(&a, &b)12	g := got.Got{a, b}13	fmt.Println("a>b", g.Gt())14}15import (16func main() {17	fmt.Println("Enter two numbers")18	fmt.Scan(&a, &b)19	g := got.Got{a, b}20	fmt.Println("a=b", g.Eq())21}22import (23func main() {24	fmt.Println("Enter two numbers")25	fmt.Scan(&a, &b)26	g := got.Got{a, b}27	fmt.Println("a+b", g.Add())28}29import (30func main() {31	fmt.Println("Enter two numbers")32	fmt.Scan(&a, &b)33	g := got.Got{a, b}34	fmt.Println("a-b", g.Sub())35}36import (37func main() {38	fmt.Println("Enter two numbers")39	fmt.Scan(&a, &b)40	g := got.Got{a, b}41	fmt.Println("a*b", g.Mul())42}43import (44func main() {45	fmt.Println("Enter two numbers")46	fmt.Scan(&a, &b)

Using AI Code Generation

1import "fmt"2func main() {3    a = got{1,2}4    fmt.Println(a.Lt())5}6import "fmt"7func main() {8    a = got{1,2}9    fmt.Println(a.Lt())10}11import "fmt"12func main() {13    a = got{1,2}14    fmt.Println(a.Lt())15}16import "fmt"17func main() {18    a = got{1,2}19    fmt.Println(a.Lt())20}21import "fmt"22func main() {23    a = got{1,2}24    fmt.Println(a.Lt())25}26import "fmt"27func main() {28    a = got{1,2}29    fmt.Println(a.Lt())30}31import "fmt"32func main() {33    a = got{1,2}34    fmt.Println(a.Lt())35}36import "fmt"37func main() {38    a = got{1,2}39    fmt.Println(a.Lt())40}41import "fmt"42func main() {43    a = got{1,2}44    fmt.Println(a.Lt())45}46import "fmt"47func main() {48    a = got{1,2}49    fmt.Println(a.Lt())50}

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