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Golang Lexer.Ignore方法代碼示例

本文整理匯總了Golang中github.com/dgraph-io/dgraph/lex.Lexer.Ignore方法的典型用法代碼示例。如果您正苦於以下問題：Golang Lexer.Ignore方法的具體用法？Golang Lexer.Ignore怎麽用？Golang Lexer.Ignore使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類github.com/dgraph-io/dgraph/lex.Lexer的用法示例。


在下文中一共展示了Lexer.Ignore方法的15個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。

示例1: lexObject

func lexObject(l *lex.Lexer) lex.StateFn {
	for {
		switch r := l.Next(); {
		case r == rightCurl:
			return lexText
		case isSpace(r) || isEndOfLine(r):
			l.Ignore()
		case isNameBegin(r):
			{
				for {
					r := l.Next()
					if isNameSuffix(r) {
						continue // absorb
					}
					l.Backup()
					l.Emit(itemObject)
					break
				}
				return lexObjectBlock
			}
		default:
			return l.Errorf("Invalid schema. Unexpected %s", l.Input[l.Start:l.Pos])
		}
	}
}
開發者ID:dgraph-io，項目名稱:dgraph，代碼行數:25，代碼來源:state.go

示例2: lexLiteral

// Assumes '"' has already been encountered.
func lexLiteral(l *lex.Lexer) lex.StateFn {
	for {
		r := l.Next()
		if r == '\u005c' { // backslash
			r = l.Next()
			continue // This would skip over the escaped rune.
		}

		if r == lex.EOF || isEndLiteral(r) {
			break
		}
	}
	l.Backup()

	l.Emit(itemLiteral)
	l.Next()   // Move to end literal.
	l.Ignore() // Ignore end literal.
	l.Depth++

	r := l.Peek()
	if r == '@' {
		return lexLanguage(l)
	}

	if r == '^' {
		return lexObjectType(l)
	}

	return lexText
}
開發者ID:dgraph-io，項目名稱:dgraph，代碼行數:31，代碼來源:state.go

示例3: lexInsideMutation

// lexInsideMutation lexes the text inside a mutation block.
func lexInsideMutation(l *lex.Lexer) lex.StateFn {
	for {
		switch r := l.Next(); {
		case r == rightCurl:
			l.Depth--
			l.Emit(itemRightCurl)
			if l.Depth == 0 {
				return lexText
			}
		case r == leftCurl:
			l.Depth++
			l.Emit(itemLeftCurl)
			if l.Depth >= 2 {
				return lexTextMutation
			}
		case r == lex.EOF:
			return l.Errorf("Unclosed mutation action")
		case isSpace(r) || isEndOfLine(r):
			l.Ignore()
		case isNameBegin(r):
			return lexNameMutation
		default:
			return l.Errorf("Unrecognized character in lexInsideMutation: %#U", r)
		}
	}
}
開發者ID:dgraph-io，項目名稱:dgraph，代碼行數:27，代碼來源:state.go

示例4: lexInside

func lexInside(l *lex.Lexer) lex.StateFn {
	for {
		switch r := l.Next(); {
		case r == rightCurl:
			l.Depth -= 1
			l.Emit(itemRightCurl)
			if l.Depth == 0 {
				return lexText
			}
		case r == leftCurl:
			l.Depth += 1
			l.Emit(itemLeftCurl)
		case r == lex.EOF:
			return l.Errorf("unclosed action")
		case isSpace(r) || isEndOfLine(r) || r == ',':
			l.Ignore()
		case isNameBegin(r):
			return lexName
		case r == '#':
			l.Backup()
			return lexComment
		case r == '(':
			l.Emit(itemLeftRound)
			return lexArgInside
		default:
			return l.Errorf("Unrecognized character in lexInside: %#U", r)
		}
	}
}
開發者ID:cayleydb，項目名稱:dgraph，代碼行數:29，代碼來源:state.go

示例5: lexArgumentVal

func lexArgumentVal(l *lex.Lexer) lex.StateFn {
	for {
		switch r := l.Next(); {
		case isSpace(r):
			l.Ignore()
		}
	}
}
開發者ID:cayleydb，項目名稱:dgraph，代碼行數:8，代碼來源:state.go

示例6: lexInside

// lexInside lexes the content inside a query block.
func lexInside(l *lex.Lexer) lex.StateFn {
	for {
		switch r := l.Next(); {
		case r == period:
			if l.Next() == period && l.Next() == period {
				return lexFragmentSpread
			}
			// We do not expect a period at all. If you do, you may want to
			// backup the two extra periods we try to read.
			return l.Errorf("Unrecognized character in lexInside: %#U", r)
		case r == rightCurl:
			l.Depth--
			l.Emit(itemRightCurl)
			if l.Depth == 0 {
				return lexText
			}
		case r == leftCurl:
			l.Depth++
			l.Emit(itemLeftCurl)
		case r == lex.EOF:
			return l.Errorf("Unclosed action")
		case isSpace(r) || isEndOfLine(r) || r == comma:
			l.Ignore()
		case isNameBegin(r):
			return lexName
		case r == '#':
			l.Backup()
			return lexComment
		case r == leftRound:
			l.Emit(itemLeftRound)
			l.AcceptRun(isSpace)
			l.Ignore()
			k := l.Next()
			if k == '_' || l.Depth != 1 || l.Mode == fragmentMode {
				l.Backup()
				l.Emit(itemArgument)
				return lexArgInside
			}
			// This is a generator function.
			l.Backup()
			l.Emit(itemGenerator)
			l.FilterDepth++
			return lexFilterInside
		case r == ':':
			return lexAlias
		case r == '@':
			return lexDirective
		default:
			return l.Errorf("Unrecognized character in lexInside: %#U", r)
		}
	}
}
開發者ID:dgraph-io，項目名稱:dgraph，代碼行數:53，代碼來源:state.go

示例7: lexLanguage

func lexLanguage(l *lex.Lexer) lex.StateFn {
	r := l.Next()
	if r != '@' {
		return l.Errorf("Expected @ prefix for lexLanguage")
	}
	l.Ignore()
	r = l.Next()
	if !isLangTagPrefix(r) {
		return l.Errorf("Invalid language tag prefix: %v", r)
	}
	l.AcceptRun(isLangTag)
	l.Emit(itemLanguage)
	return lexText
}
開發者ID:cayleydb，項目名稱:dgraph，代碼行數:14，代碼來源:state.go

示例8: lexAlias

func lexAlias(l *lex.Lexer) lex.StateFn {
	l.AcceptRun(isSpace)
	l.Ignore() // Any spaces encountered.
	for {
		r := l.Next()
		if isNameSuffix(r) {
			continue
		}
		l.Backup()
		l.Emit(itemAlias)
		break
	}
	return lexInside
}
開發者ID:dgraph-io，項目名稱:dgraph，代碼行數:14，代碼來源:state.go

示例9: lexVarInside

func lexVarInside(l *lex.Lexer) lex.StateFn {
	for {
		switch r := l.Next(); {
		case r == lex.EOF:
			return l.Errorf("unclosed argument")
		case isSpace(r) || isEndOfLine(r):
			l.Ignore()
		case isDollar(r):
			return lexVarName
		case r == ':':
			l.Ignore()
			return lexVarType
		case r == equal:
			l.Emit(itemEqual)
			l.Ignore()
			return lexVarDefault
		case r == rightRound:
			l.Emit(itemRightRound)
			return lexText
		case r == comma:
			l.Emit(itemComma)
			l.Ignore()
		default:
			return l.Errorf("variable list invalid")
		}
	}
}
開發者ID:dgraph-io，項目名稱:dgraph，代碼行數:27，代碼來源:state.go

示例10: lexObjectType

func lexObjectType(l *lex.Lexer) lex.StateFn {
	r := l.Next()
	if r != '^' {
		return l.Errorf("Expected ^ for lexObjectType")
	}
	r = l.Next()
	if r != '^' {
		return l.Errorf("Expected ^^ for lexObjectType")
	}
	l.Ignore()
	r = l.Next()
	if r != '<' {
		return l.Errorf("Expected < for lexObjectType")
	}
	return lexUntilClosing(l, itemObjectType, lexText)
}
開發者ID:cayleydb，項目名稱:dgraph，代碼行數:16，代碼來源:state.go

示例11: lexArgVal

// lexArgVal lexes and emits the value part of an argument.
func lexArgVal(l *lex.Lexer) lex.StateFn {
	l.AcceptRun(isSpace)
	l.Ignore() // Any spaces encountered.
	for {
		r := l.Next()
		if isSpace(r) || isEndOfLine(r) || r == rightRound || r == comma {
			l.Backup()
			l.Emit(itemArgVal)
			return lexArgInside
		}
		if r == lex.EOF {
			return l.Errorf("Reached lex.EOF while reading var value: %v",
				l.Input[l.Start:l.Pos])
		}
	}
}
開發者ID:dgraph-io，項目名稱:dgraph，代碼行數:17，代碼來源:state.go

示例12: lexScalarBlock

func lexScalarBlock(l *lex.Lexer) lex.StateFn {
	for {
		switch r := l.Next(); {
		case r == ')':
			l.Emit(itemRightRound)
			return lexText
		case isNameBegin(r):
			l.Backup()
			return lexScalarPair1
		case isSpace(r) || isEndOfLine(r):
			l.Ignore()
		default:
			return l.Errorf("Invalid schema. Unexpected %s", l.Input[l.Start:l.Pos])
		}
	}
}
開發者ID:dgraph-io，項目名稱:dgraph，代碼行數:16，代碼來源:state.go

示例13: lexObject

func lexObject(l *lex.Lexer) lex.StateFn {
	r := l.Next()
	if r == '<' {
		l.Depth += 1
		return lexUntilClosing(l, itemObject, lexText)
	}
	if r == '_' {
		l.Depth += 1
		return lexBlankNode(l, itemObject, lexText)
	}
	if r == '"' {
		l.Ignore()
		return lexLiteral(l)
	}

	return l.Errorf("Invalid char: %v at lexObject", r)
}
開發者ID:cayleydb，項目名稱:dgraph，代碼行數:17，代碼來源:state.go

示例14: lexObjectBlock

func lexObjectBlock(l *lex.Lexer) lex.StateFn {
	for {
		switch r := l.Next(); {
		case r == leftCurl:
			l.Emit(itemLeftCurl)
		case isSpace(r) || isEndOfLine(r):
			l.Ignore()
		case r == rightCurl:
			l.Emit(itemRightCurl)
			return lexText
		case isNameBegin(r):
			return lexObjectPair
		default:
			return l.Errorf("Invalid schema. Unexpected %s", l.Input[l.Start:l.Pos])
		}
	}
}
開發者ID:dgraph-io，項目名稱:dgraph，代碼行數:17，代碼來源:state.go

示例15: lexArgVal

func lexArgVal(l *lex.Lexer) lex.StateFn {
	l.AcceptRun(isSpace)
	l.Ignore() // Any spaces encountered.
	for {
		r := l.Next()
		if isSpace(r) || isEndOfLine(r) || r == ')' || r == ',' {
			l.Backup()
			l.Emit(itemArgVal)
			return lexArgInside
		}
		if r == lex.EOF {
			return l.Errorf("Reached lex.EOF while reading var value: %v",
				l.Input[l.Start:l.Pos])
		}
	}
	glog.Fatal("This shouldn't be reached.")
	return nil
}
開發者ID:cayleydb，項目名稱:dgraph，代碼行數:18，代碼來源:state.go


注：本文中的github.com/dgraph-io/dgraph/lex.Lexer.Ignore方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。