search

package
v0.5.1 Latest Latest
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 Go to latest Published: May 4, 2014 License: Apache-2.0 Imports: 12 Imported by: 0

Documentation

Overview

Parse Solr queries with the PEG generated from 'search/search-parse.peg', located in search-parse.peg.go. To have changes to seach-parse.peg reflected in search-parse.peg.go, install peg from https://github.com/pointlander/peg and run 'peg -switch -inline search-parse.peg'.

Package search provides search and index capabilities for goiardi.

Index

Constants

View Source 
const END_SYMBOL rune = 4

Variables

View Source 
var Rul3s = [...]string{
	"Unknown",
	"q",
	"body",
	"expression",
	"term",
	"field",
	"field_norm",
	"field_group",
	"field_range",
	"field_inc_range",
	"field_exc_range",
	"field_name",
	"range_value",
	"group",
	"operation",
	"unary_op",
	"binary_op",
	"boolean_operator",
	"or_operator",
	"and_operator",
	"not_op",
	"not_operator",
	"bang_operator",
	"required_op",
	"required_operator",
	"prohibited_op",
	"prohibited_operator",
	"boost_op",
	"fuzzy_op",
	"fuzzy_param",
	"string",
	"keyword",
	"valid_letter",
	"start_letter",
	"end_letter",
	"special_char",
	"open_paren",
	"close_paren",
	"open_incl",
	"close_incl",
	"open_excl",
	"close_excl",
	"space",
	"PegText",
	"Action0",
	"Action1",
	"Action2",
	"Action3",
	"Action4",
	"Action5",
	"Action6",
	"Action7",
	"Action8",
	"Action9",
	"Action10",
	"Action11",
	"Action12",
	"Action13",
	"Action14",
	"Action15",
	"Action16",
	"Action17",
	"Action18",
	"Action19",
	"Action20",

	"Pre_",
	"_In_",
	"_Suf",
}

Functions

func GetEndpoints 

func GetEndpoints() []string

Get a list from the indexer of all the endpoints available to search. 

func Search(idx string, q string) ([]indexer.Indexable, error)

Parse the given query string and search the given index for any matching results.

Types

type BasicQuery 

type BasicQuery struct {
	// contains filtered or unexported fields
}

The no frills basic query type, without groups or ranges. Can contain regexp terms, however.

func (*BasicQuery) AddField 

func (q *BasicQuery) AddField(s Field)

func (*BasicQuery) AddFuzzBoost 

func (q *BasicQuery) AddFuzzBoost(o Op)

func (*BasicQuery) AddFuzzParam 

func (q *BasicQuery) AddFuzzParam(s string)

func (*BasicQuery) AddOp 

func (q *BasicQuery) AddOp(o Op)

func (*BasicQuery) AddTerm 

func (q *BasicQuery) AddTerm(s Term)

func (*BasicQuery) AddTermOp 

func (q *BasicQuery) AddTermOp(o Op)

func (*BasicQuery) IsIncomplete 

func (q *BasicQuery) IsIncomplete() bool

func (*BasicQuery) Next 

func (q *BasicQuery) Next() Queryable

func (*BasicQuery) Op 

func (q *BasicQuery) Op() Op

func (*BasicQuery) SearchIndex 

func (q *BasicQuery) SearchIndex(idxName string) (map[string]*indexer.IdxDoc, error)

func (*BasicQuery) SetCompleted 

func (q *BasicQuery) SetCompleted()

func (*BasicQuery) SetNext 

func (q *BasicQuery) SetNext(n Queryable)

type Field 

type Field string

func (Field) String 

func (f Field) String() string

type GroupQueryHolder 

type GroupQueryHolder struct {
	// contains filtered or unexported fields
}

type GroupedQuery 

type GroupedQuery struct {
	// contains filtered or unexported fields
}

Query grouped results.

func (*GroupedQuery) AddField 

func (q *GroupedQuery) AddField(s Field)

func (*GroupedQuery) AddFuzzBoost 

func (q *GroupedQuery) AddFuzzBoost(o Op)

func (*GroupedQuery) AddFuzzParam 

func (q *GroupedQuery) AddFuzzParam(s string)

func (*GroupedQuery) AddOp 

func (q *GroupedQuery) AddOp(o Op)

func (*GroupedQuery) AddTerm 

func (q *GroupedQuery) AddTerm(s Term)

func (*GroupedQuery) AddTermOp 

func (q *GroupedQuery) AddTermOp(o Op)

func (*GroupedQuery) IsIncomplete 

func (q *GroupedQuery) IsIncomplete() bool

func (*GroupedQuery) Next 

func (q *GroupedQuery) Next() Queryable

func (*GroupedQuery) Op 

func (q *GroupedQuery) Op() Op

func (*GroupedQuery) SearchIndex 

func (q *GroupedQuery) SearchIndex(idxName string) (map[string]*indexer.IdxDoc, error)

func (*GroupedQuery) SetCompleted 

func (q *GroupedQuery) SetCompleted()

func (*GroupedQuery) SetNext 

func (q *GroupedQuery) SetNext(n Queryable)

type Op 

type Op uint8
const (
	OpNotAnOp Op = iota
	OpUnaryNot
	OpUnaryReq
	OpUnaryPro
	OpBinAnd
	OpBinOr
	OpBoost
	OpFuzzy
	OpStartGroup
	OpEndGroup
	OpStartIncl
	OpEndIncl
	OpStartExcl
	OpEndExcl
)

type QueryTerm 

type QueryTerm struct {
	// contains filtered or unexported fields
}

An individual query term and its operator.

type Queryable 

type Queryable interface {
	// Search the index for the given term.
	SearchIndex(string) (map[string]*indexer.IdxDoc, error)
	// Add an operator to this query chain link.
	AddOp(Op)
	// Get this query chain link's op.
	Op() Op
	// Add a field to this query chain link.
	AddField(Field)
	// Add a term to this link.
	AddTerm(Term)
	// Add an operator to the query chain link's term.
	AddTermOp(Op)
	// Set the next query in the query chain.
	SetNext(Queryable)
	// Get the next link in the query chain.
	Next() Queryable
	// Is the query chain incomplete?
	IsIncomplete() bool
	// Sets the completed flag for this query chain on this link.
	SetCompleted()
	// Add fuzz boost to the query. NOTE: doesn't do much.
	AddFuzzBoost(Op)
	// Add a fuzz param to the query. NOTE: doesn't do much.
	AddFuzzParam(string)
}

Interface of methods all the query chain types have to be able to implement to search the index.

type RangeQuery 

type RangeQuery struct {
	// contains filtered or unexported fields
}

Query a range of values.

func (*RangeQuery) AddField 

func (q *RangeQuery) AddField(s Field)

func (*RangeQuery) AddFuzzBoost 

func (q *RangeQuery) AddFuzzBoost(o Op)

func (*RangeQuery) AddFuzzParam 

func (q *RangeQuery) AddFuzzParam(s string)

func (*RangeQuery) AddOp 

func (q *RangeQuery) AddOp(o Op)

func (*RangeQuery) AddTerm 

func (q *RangeQuery) AddTerm(s Term)

func (*RangeQuery) AddTermOp 

func (q *RangeQuery) AddTermOp(o Op)

func (*RangeQuery) IsIncomplete 

func (q *RangeQuery) IsIncomplete() bool

func (*RangeQuery) Next 

func (q *RangeQuery) Next() Queryable

func (*RangeQuery) Op 

func (q *RangeQuery) Op() Op

func (*RangeQuery) SearchIndex 

func (q *RangeQuery) SearchIndex(idxName string) (map[string]*indexer.IdxDoc, error)

func (*RangeQuery) SetCompleted 

func (q *RangeQuery) SetCompleted()

func (*RangeQuery) SetNext 

func (q *RangeQuery) SetNext(n Queryable)

type RangeTerm 

type RangeTerm string

type Rule 

type Rule uint8

The rule types inferred from the grammar are below. 

const (
	RuleUnknown Rule = iota
	Ruleq
	Rulebody
	Ruleexpression
	Ruleterm
	Rulefield
	Rulefield_norm
	Rulefield_group
	Rulefield_range
	Rulefield_inc_range
	Rulefield_exc_range
	Rulefield_name
	Rulerange_value
	Rulegroup
	Ruleoperation
	Ruleunary_op
	Rulebinary_op
	Ruleboolean_operator
	Ruleor_operator
	Ruleand_operator
	Rulenot_op
	Rulenot_operator
	Rulebang_operator
	Rulerequired_op
	Rulerequired_operator
	Ruleprohibited_op
	Ruleprohibited_operator
	Ruleboost_op
	Rulefuzzy_op
	Rulefuzzy_param
	Rulestring
	Rulekeyword
	Rulevalid_letter
	Rulestart_letter
	Ruleend_letter
	Rulespecial_char
	Ruleopen_paren
	Ruleclose_paren
	Ruleopen_incl
	Ruleclose_incl
	Ruleopen_excl
	Ruleclose_excl
	Rulespace
	RulePegText
	RuleAction0
	RuleAction1
	RuleAction2
	RuleAction3
	RuleAction4
	RuleAction5
	RuleAction6
	RuleAction7
	RuleAction8
	RuleAction9
	RuleAction10
	RuleAction11
	RuleAction12
	RuleAction13
	RuleAction14
	RuleAction15
	RuleAction16
	RuleAction17
	RuleAction18
	RuleAction19
	RuleAction20

	RulePre_
	Rule_In_
	Rule_Suf
)

type SolrQuery 

type SolrQuery struct {
	// contains filtered or unexported fields
}

Holds a parsed query and query chain to run against the index.

type State16 

type State16 struct {
	// contains filtered or unexported fields
}

func (*State16) GetToken32 

func (t *State16) GetToken32() token32

func (*State16) String 

func (t *State16) String() string

type State32 

type State32 struct {
	// contains filtered or unexported fields
}

func (*State32) GetToken32 

func (t *State32) GetToken32() token32

func (*State32) String 

func (t *State32) String() string

type SubQuery 

type SubQuery struct {
	// contains filtered or unexported fields
}

Subquery's really just a marker in the chain of queries. Later it will be processed by itself though.

func (*SubQuery) AddField 

func (q *SubQuery) AddField(s Field)

func (*SubQuery) AddFuzzBoost 

func (q *SubQuery) AddFuzzBoost(o Op)

func (*SubQuery) AddFuzzParam 

func (q *SubQuery) AddFuzzParam(s string)

func (*SubQuery) AddOp 

func (q *SubQuery) AddOp(o Op)

func (*SubQuery) AddTerm 

func (q *SubQuery) AddTerm(s Term)

func (*SubQuery) AddTermOp 

func (q *SubQuery) AddTermOp(o Op)

func (*SubQuery) IsIncomplete 

func (q *SubQuery) IsIncomplete() bool

func (*SubQuery) Next 

func (q *SubQuery) Next() Queryable

func (*SubQuery) Op 

func (q *SubQuery) Op() Op

func (*SubQuery) SearchIndex 

func (q *SubQuery) SearchIndex(idxName string) (map[string]*indexer.IdxDoc, error)

func (*SubQuery) SetCompleted 

func (q *SubQuery) SetCompleted()

func (*SubQuery) SetNext 

func (q *SubQuery) SetNext(n Queryable)

type Term 

type Term string

func (Term) String 

func (t Term) String() string

type Token 

type Token struct {
	QueryChain Queryable
	Latest     Queryable
}

Hold parsed tokens from the solr query

func (*Token) AddField 

func (z *Token) AddField(s string)

func (*Token) AddOp 

func (z *Token) AddOp(o Op)

func (*Token) AddRange 

func (z *Token) AddRange(s string)

func (*Token) AddTerm 

func (z *Token) AddTerm(s string)

func (*Token) AddTermOp 

func (z *Token) AddTermOp(o Op)

func (*Token) EndSubQuery 

func (z *Token) EndSubQuery()

func (*Token) Evaluate 

func (z *Token) Evaluate() Queryable

func (*Token) SetCompleted 

func (z *Token) SetCompleted()

func (*Token) StartBasic 

func (z *Token) StartBasic()

func (*Token) StartGrouped 

func (z *Token) StartGrouped()

func (*Token) StartRange 

func (z *Token) StartRange(inclusive bool)

func (*Token) StartSubQuery 

func (z *Token) StartSubQuery()

type TokenTree 

type TokenTree interface {
	Print()
	PrintSyntax()
	PrintSyntaxTree(buffer string)
	Add(rule Rule, begin, end, next, depth int)
	Expand(index int) TokenTree
	Tokens() <-chan token32
	Error() []token32
	// contains filtered or unexported methods
}

type Tokenizer 

type Tokenizer struct {
	Token

	Buffer string

	Parse func(rule ...int) error
	Reset func()
	TokenTree
	// contains filtered or unexported fields
}

func (*Tokenizer) Execute 

func (p *Tokenizer) Execute()

func (*Tokenizer) Highlighter 

func (p *Tokenizer) Highlighter()

func (*Tokenizer) Init 

func (p *Tokenizer) Init()

func (*Tokenizer) PrintSyntaxTree 

func (p *Tokenizer) PrintSyntaxTree()

Source Files

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