Add json package in full
This commit is contained in:
parent
38f0a9b97a
commit
d43c1e752f
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@ -22,7 +22,7 @@ func (r *Ref) MarshalText() ([]byte, error) {
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}
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func (c *Context) MarshalJSON() ([]byte, error) {
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a := reflectToJsonValue(c)
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a := reflectToJSONValue(c)
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if a.isScalar {
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return json.Marshal(a.scalar)
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} else {
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@ -42,5 +42,4 @@ func TestContext_MarshalJSON(t *testing.T) {
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if !strings.Contains(string(out), url) {
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t.Errorf("Json doesn't contain %#v, %#v", url, string(out))
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}
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t.Logf("%s", out)
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}
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1270
src/jsonld/decode.go
Normal file
1270
src/jsonld/decode.go
Normal file
File diff suppressed because it is too large
Load diff
7
src/jsonld/decode_test.go
Normal file
7
src/jsonld/decode_test.go
Normal file
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@ -0,0 +1,7 @@
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package jsonld
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import "testing"
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func TestPayloadWithContext_UnmarshalJSON(t *testing.T) {
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t.Skipf("Not implemented")
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}
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1342
src/jsonld/encode.go
1342
src/jsonld/encode.go
File diff suppressed because it is too large
Load diff
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@ -15,13 +15,13 @@ type mockBase struct {
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}
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type mockTypeA struct {
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*mockBase
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mockBase
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PropA string
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PropB float32
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}
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func TestMarshal(t *testing.T) {
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a := mockTypeA{&mockBase{"base_id", "MockObjA", "mock_obj"}, "prop_a", 0.001}
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a := mockTypeA{mockBase{"base_id", "MockObjA", "mock_obj"}, "prop_a", 0.001}
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b := mockTypeA{}
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url := "http://www.habarnam.ro"
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@ -100,13 +100,6 @@ func TestIsEmpty(t *testing.T) {
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if !isEmptyValue(reflect.ValueOf(e)) {
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t.Errorf("Invalid empty value %v", e)
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}
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f := struct {
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a string
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b int
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}{}
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if !isEmptyValue(reflect.ValueOf(f)) {
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t.Errorf("Invalid empty value %v", f)
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}
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g := false
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if !isEmptyValue(reflect.ValueOf(g)) {
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t.Errorf("Invalid empty value %v", g)
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143
src/jsonld/fold.go
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143
src/jsonld/fold.go
Normal file
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@ -0,0 +1,143 @@
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// Copyright 2013 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 jsonld
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import (
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"bytes"
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"unicode/utf8"
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)
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const (
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caseMask = ^byte(0x20) // Mask to ignore case in ASCII.
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kelvin = '\u212a'
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smallLongEss = '\u017f'
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)
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// foldFunc returns one of four different case folding equivalence
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// functions, from most general (and slow) to fastest:
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//
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// 1) bytes.EqualFold, if the key s contains any non-ASCII UTF-8
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// 2) equalFoldRight, if s contains special folding ASCII ('k', 'K', 's', 'S')
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// 3) asciiEqualFold, no special, but includes non-letters (including _)
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// 4) simpleLetterEqualFold, no specials, no non-letters.
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//
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// The letters S and K are special because they map to 3 runes, not just 2:
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// * S maps to s and to U+017F 'ſ' Latin small letter long s
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// * k maps to K and to U+212A 'K' Kelvin sign
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// See https://play.golang.org/p/tTxjOc0OGo
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//
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// The returned function is specialized for matching against s and
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// should only be given s. It's not curried for performance reasons.
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func foldFunc(s []byte) func(s, t []byte) bool {
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nonLetter := false
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special := false // special letter
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for _, b := range s {
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if b >= utf8.RuneSelf {
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return bytes.EqualFold
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}
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upper := b & caseMask
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if upper < 'A' || upper > 'Z' {
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nonLetter = true
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} else if upper == 'K' || upper == 'S' {
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// See above for why these letters are special.
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special = true
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}
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}
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if special {
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return equalFoldRight
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}
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if nonLetter {
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return asciiEqualFold
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}
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return simpleLetterEqualFold
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}
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// equalFoldRight is a specialization of bytes.EqualFold when s is
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// known to be all ASCII (including punctuation), but contains an 's',
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// 'S', 'k', or 'K', requiring a Unicode fold on the bytes in t.
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// See comments on foldFunc.
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func equalFoldRight(s, t []byte) bool {
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for _, sb := range s {
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if len(t) == 0 {
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return false
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}
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tb := t[0]
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if tb < utf8.RuneSelf {
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if sb != tb {
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sbUpper := sb & caseMask
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if 'A' <= sbUpper && sbUpper <= 'Z' {
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if sbUpper != tb&caseMask {
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return false
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}
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} else {
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return false
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}
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}
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t = t[1:]
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continue
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}
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// sb is ASCII and t is not. t must be either kelvin
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// sign or long s; sb must be s, S, k, or K.
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tr, size := utf8.DecodeRune(t)
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switch sb {
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case 's', 'S':
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if tr != smallLongEss {
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return false
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}
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case 'k', 'K':
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if tr != kelvin {
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return false
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}
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default:
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return false
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}
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t = t[size:]
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}
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if len(t) > 0 {
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return false
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}
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return true
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}
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// asciiEqualFold is a specialization of bytes.EqualFold for use when
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// s is all ASCII (but may contain non-letters) and contains no
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// special-folding letters.
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// See comments on foldFunc.
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func asciiEqualFold(s, t []byte) bool {
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if len(s) != len(t) {
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return false
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}
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for i, sb := range s {
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tb := t[i]
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if sb == tb {
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continue
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}
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if ('a' <= sb && sb <= 'z') || ('A' <= sb && sb <= 'Z') {
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if sb&caseMask != tb&caseMask {
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return false
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}
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} else {
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return false
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}
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}
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return true
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}
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// simpleLetterEqualFold is a specialization of bytes.EqualFold for
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// use when s is all ASCII letters (no underscores, etc) and also
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// doesn't contain 'k', 'K', 's', or 'S'.
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// See comments on foldFunc.
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func simpleLetterEqualFold(s, t []byte) bool {
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if len(s) != len(t) {
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return false
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}
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for i, b := range s {
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if b&caseMask != t[i]&caseMask {
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return false
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}
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}
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return true
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}
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628
src/jsonld/scanner.go
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628
src/jsonld/scanner.go
Normal file
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@ -0,0 +1,628 @@
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// Copyright 2010 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 jsonld
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// JSON value parser state machine.
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// Just about at the limit of what is reasonable to write by hand.
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// Some parts are a bit tedious, but overall it nicely factors out the
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// otherwise common code from the multiple scanning functions
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// in this package (Compact, Indent, checkValid, nextValue, etc).
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//
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// This file starts with two simple examples using the scanner
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// before diving into the scanner itself.
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import "strconv"
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// Valid reports whether data is a valid JSON encoding.
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func Valid(data []byte) bool {
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return checkValid(data, &scanner{}) == nil
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}
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// checkValid verifies that data is valid JSON-encoded data.
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// scan is passed in for use by checkValid to avoid an allocation.
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func checkValid(data []byte, scan *scanner) error {
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scan.reset()
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for _, c := range data {
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scan.bytes++
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if scan.step(scan, c) == scanError {
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return scan.err
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}
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}
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if scan.eof() == scanError {
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return scan.err
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}
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return nil
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}
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// nextValue splits data after the next whole JSON value,
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// returning that value and the bytes that follow it as separate slices.
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// scan is passed in for use by nextValue to avoid an allocation.
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func nextValue(data []byte, scan *scanner) (value, rest []byte, err error) {
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scan.reset()
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for i, c := range data {
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v := scan.step(scan, c)
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if v >= scanEndObject {
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switch v {
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// probe the scanner with a space to determine whether we will
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// get scanEnd on the next character. Otherwise, if the next character
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// is not a space, scanEndTop allocates a needless error.
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case scanEndObject, scanEndArray:
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if scan.step(scan, ' ') == scanEnd {
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return data[:i+1], data[i+1:], nil
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}
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case scanError:
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return nil, nil, scan.err
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case scanEnd:
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return data[:i], data[i:], nil
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}
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}
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}
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if scan.eof() == scanError {
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return nil, nil, scan.err
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}
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return data, nil, nil
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}
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// A SyntaxError is a description of a JSON syntax error.
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type SyntaxError struct {
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msg string // description of error
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Offset int64 // error occurred after reading Offset bytes
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}
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func (e *SyntaxError) Error() string { return e.msg }
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// A scanner is a JSON scanning state machine.
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// Callers call scan.reset() and then pass bytes in one at a time
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// by calling scan.step(&scan, c) for each byte.
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// The return value, referred to as an opcode, tells the
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// caller about significant parsing events like beginning
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// and ending literals, objects, and arrays, so that the
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// caller can follow along if it wishes.
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// The return value scanEnd indicates that a single top-level
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// JSON value has been completed, *before* the byte that
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// just got passed in. (The indication must be delayed in order
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// to recognize the end of numbers: is 123 a whole value or
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// the beginning of 12345e+6?).
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type scanner struct {
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// The step is a func to be called to execute the next transition.
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// Also tried using an integer constant and a single func
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// with a switch, but using the func directly was 10% faster
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// on a 64-bit Mac Mini, and it's nicer to read.
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step func(*scanner, byte) int
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// Reached end of top-level value.
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endTop bool
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// Stack of what we're in the middle of - array values, object keys, object values.
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parseState []int
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// Error that happened, if any.
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err error
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// 1-byte redo (see undo method)
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redo bool
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redoCode int
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redoState func(*scanner, byte) int
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// total bytes consumed, updated by decoder.Decode
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bytes int64
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}
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// These values are returned by the state transition functions
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// assigned to scanner.state and the method scanner.eof.
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// They give details about the current state of the scan that
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// callers might be interested to know about.
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// It is okay to ignore the return value of any particular
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// call to scanner.state: if one call returns scanError,
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// every subsequent call will return scanError too.
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const (
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// Continue.
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scanContinue = iota // uninteresting byte
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scanBeginLiteral // end implied by next result != scanContinue
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scanBeginObject // begin object
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scanObjectKey // just finished object key (string)
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scanObjectValue // just finished non-last object value
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scanEndObject // end object (implies scanObjectValue if possible)
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scanBeginArray // begin array
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scanArrayValue // just finished array value
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scanEndArray // end array (implies scanArrayValue if possible)
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scanSkipSpace // space byte; can skip; known to be last "continue" result
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// Stop.
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scanEnd // top-level value ended *before* this byte; known to be first "stop" result
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scanError // hit an error, scanner.err.
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)
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// These values are stored in the parseState stack.
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// They give the current state of a composite value
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// being scanned. If the parser is inside a nested value
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// the parseState describes the nested state, outermost at entry 0.
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const (
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parseObjectKey = iota // parsing object key (before colon)
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parseObjectValue // parsing object value (after colon)
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parseArrayValue // parsing array value
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)
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// reset prepares the scanner for use.
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// It must be called before calling s.step.
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func (s *scanner) reset() {
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s.step = stateBeginValue
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s.parseState = s.parseState[0:0]
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s.err = nil
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s.redo = false
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s.endTop = false
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}
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// eof tells the scanner that the end of input has been reached.
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// It returns a scan status just as s.step does.
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func (s *scanner) eof() int {
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if s.err != nil {
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return scanError
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}
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if s.endTop {
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return scanEnd
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}
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s.step(s, ' ')
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if s.endTop {
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return scanEnd
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}
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if s.err == nil {
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s.err = &SyntaxError{"unexpected end of JSON input", s.bytes}
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}
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return scanError
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}
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// pushParseState pushes a new parse state p onto the parse stack.
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func (s *scanner) pushParseState(p int) {
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s.parseState = append(s.parseState, p)
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}
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// popParseState pops a parse state (already obtained) off the stack
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// and updates s.step accordingly.
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func (s *scanner) popParseState() {
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n := len(s.parseState) - 1
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s.parseState = s.parseState[0:n]
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s.redo = false
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if n == 0 {
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s.step = stateEndTop
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s.endTop = true
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} else {
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s.step = stateEndValue
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}
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}
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func isSpace(c byte) bool {
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return c == ' ' || c == '\t' || c == '\r' || c == '\n'
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}
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// stateBeginValueOrEmpty is the state after reading `[`.
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func stateBeginValueOrEmpty(s *scanner, c byte) int {
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if c <= ' ' && isSpace(c) {
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return scanSkipSpace
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}
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if c == ']' {
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return stateEndValue(s, c)
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}
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return stateBeginValue(s, c)
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}
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// stateBeginValue is the state at the beginning of the input.
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func stateBeginValue(s *scanner, c byte) int {
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if c <= ' ' && isSpace(c) {
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return scanSkipSpace
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}
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switch c {
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case '{':
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s.step = stateBeginStringOrEmpty
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s.pushParseState(parseObjectKey)
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return scanBeginObject
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case '[':
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s.step = stateBeginValueOrEmpty
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s.pushParseState(parseArrayValue)
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return scanBeginArray
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case '"':
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s.step = stateInString
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return scanBeginLiteral
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case '-':
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s.step = stateNeg
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return scanBeginLiteral
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case '0': // beginning of 0.123
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s.step = state0
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return scanBeginLiteral
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case 't': // beginning of true
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s.step = stateT
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return scanBeginLiteral
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case 'f': // beginning of false
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s.step = stateF
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return scanBeginLiteral
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case 'n': // beginning of null
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s.step = stateN
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return scanBeginLiteral
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}
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if '1' <= c && c <= '9' { // beginning of 1234.5
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s.step = state1
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return scanBeginLiteral
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}
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return s.error(c, "looking for beginning of value")
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}
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// stateBeginStringOrEmpty is the state after reading `{`.
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func stateBeginStringOrEmpty(s *scanner, c byte) int {
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if c <= ' ' && isSpace(c) {
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return scanSkipSpace
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}
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if c == '}' {
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n := len(s.parseState)
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s.parseState[n-1] = parseObjectValue
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return stateEndValue(s, c)
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}
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return stateBeginString(s, c)
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}
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// stateBeginString is the state after reading `{"key": value,`.
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func stateBeginString(s *scanner, c byte) int {
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if c <= ' ' && isSpace(c) {
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return scanSkipSpace
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}
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if c == '"' {
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s.step = stateInString
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return scanBeginLiteral
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}
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return s.error(c, "looking for beginning of object key string")
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}
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// stateEndValue is the state after completing a value,
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// such as after reading `{}` or `true` or `["x"`.
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func stateEndValue(s *scanner, c byte) int {
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n := len(s.parseState)
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if n == 0 {
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// Completed top-level before the current byte.
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s.step = stateEndTop
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s.endTop = true
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return stateEndTop(s, c)
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}
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if c <= ' ' && isSpace(c) {
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s.step = stateEndValue
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return scanSkipSpace
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}
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ps := s.parseState[n-1]
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switch ps {
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case parseObjectKey:
|
||||
if c == ':' {
|
||||
s.parseState[n-1] = parseObjectValue
|
||||
s.step = stateBeginValue
|
||||
return scanObjectKey
|
||||
}
|
||||
return s.error(c, "after object key")
|
||||
case parseObjectValue:
|
||||
if c == ',' {
|
||||
s.parseState[n-1] = parseObjectKey
|
||||
s.step = stateBeginString
|
||||
return scanObjectValue
|
||||
}
|
||||
if c == '}' {
|
||||
s.popParseState()
|
||||
return scanEndObject
|
||||
}
|
||||
return s.error(c, "after object key:value pair")
|
||||
case parseArrayValue:
|
||||
if c == ',' {
|
||||
s.step = stateBeginValue
|
||||
return scanArrayValue
|
||||
}
|
||||
if c == ']' {
|
||||
s.popParseState()
|
||||
return scanEndArray
|
||||
}
|
||||
return s.error(c, "after array element")
|
||||
}
|
||||
return s.error(c, "")
|
||||
}
|
||||
|
||||
// stateEndTop is the state after finishing the top-level value,
|
||||
// such as after reading `{}` or `[1,2,3]`.
|
||||
// Only space characters should be seen now.
|
||||
func stateEndTop(s *scanner, c byte) int {
|
||||
if c != ' ' && c != '\t' && c != '\r' && c != '\n' {
|
||||
// Complain about non-space byte on next call.
|
||||
s.error(c, "after top-level value")
|
||||
}
|
||||
return scanEnd
|
||||
}
|
||||
|
||||
// stateInString is the state after reading `"`.
|
||||
func stateInString(s *scanner, c byte) int {
|
||||
if c == '"' {
|
||||
s.step = stateEndValue
|
||||
return scanContinue
|
||||
}
|
||||
if c == '\\' {
|
||||
s.step = stateInStringEsc
|
||||
return scanContinue
|
||||
}
|
||||
if c < 0x20 {
|
||||
return s.error(c, "in string literal")
|
||||
}
|
||||
return scanContinue
|
||||
}
|
||||
|
||||
// stateInStringEsc is the state after reading `"\` during a quoted string.
|
||||
func stateInStringEsc(s *scanner, c byte) int {
|
||||
switch c {
|
||||
case 'b', 'f', 'n', 'r', 't', '\\', '/', '"':
|
||||
s.step = stateInString
|
||||
return scanContinue
|
||||
case 'u':
|
||||
s.step = stateInStringEscU
|
||||
return scanContinue
|
||||
}
|
||||
return s.error(c, "in string escape code")
|
||||
}
|
||||
|
||||
// stateInStringEscU is the state after reading `"\u` during a quoted string.
|
||||
func stateInStringEscU(s *scanner, c byte) int {
|
||||
if '0' <= c && c <= '9' || 'a' <= c && c <= 'f' || 'A' <= c && c <= 'F' {
|
||||
s.step = stateInStringEscU1
|
||||
return scanContinue
|
||||
}
|
||||
// numbers
|
||||
return s.error(c, "in \\u hexadecimal character escape")
|
||||
}
|
||||
|
||||
// stateInStringEscU1 is the state after reading `"\u1` during a quoted string.
|
||||
func stateInStringEscU1(s *scanner, c byte) int {
|
||||
if '0' <= c && c <= '9' || 'a' <= c && c <= 'f' || 'A' <= c && c <= 'F' {
|
||||
s.step = stateInStringEscU12
|
||||
return scanContinue
|
||||
}
|
||||
// numbers
|
||||
return s.error(c, "in \\u hexadecimal character escape")
|
||||
}
|
||||
|
||||
// stateInStringEscU12 is the state after reading `"\u12` during a quoted string.
|
||||
func stateInStringEscU12(s *scanner, c byte) int {
|
||||
if '0' <= c && c <= '9' || 'a' <= c && c <= 'f' || 'A' <= c && c <= 'F' {
|
||||
s.step = stateInStringEscU123
|
||||
return scanContinue
|
||||
}
|
||||
// numbers
|
||||
return s.error(c, "in \\u hexadecimal character escape")
|
||||
}
|
||||
|
||||
// stateInStringEscU123 is the state after reading `"\u123` during a quoted string.
|
||||
func stateInStringEscU123(s *scanner, c byte) int {
|
||||
if '0' <= c && c <= '9' || 'a' <= c && c <= 'f' || 'A' <= c && c <= 'F' {
|
||||
s.step = stateInString
|
||||
return scanContinue
|
||||
}
|
||||
// numbers
|
||||
return s.error(c, "in \\u hexadecimal character escape")
|
||||
}
|
||||
|
||||
// stateNeg is the state after reading `-` during a number.
|
||||
func stateNeg(s *scanner, c byte) int {
|
||||
if c == '0' {
|
||||
s.step = state0
|
||||
return scanContinue
|
||||
}
|
||||
if '1' <= c && c <= '9' {
|
||||
s.step = state1
|
||||
return scanContinue
|
||||
}
|
||||
return s.error(c, "in numeric literal")
|
||||
}
|
||||
|
||||
// state1 is the state after reading a non-zero integer during a number,
|
||||
// such as after reading `1` or `100` but not `0`.
|
||||
func state1(s *scanner, c byte) int {
|
||||
if '0' <= c && c <= '9' {
|
||||
s.step = state1
|
||||
return scanContinue
|
||||
}
|
||||
return state0(s, c)
|
||||
}
|
||||
|
||||
// state0 is the state after reading `0` during a number.
|
||||
func state0(s *scanner, c byte) int {
|
||||
if c == '.' {
|
||||
s.step = stateDot
|
||||
return scanContinue
|
||||
}
|
||||
if c == 'e' || c == 'E' {
|
||||
s.step = stateE
|
||||
return scanContinue
|
||||
}
|
||||
return stateEndValue(s, c)
|
||||
}
|
||||
|
||||
// stateDot is the state after reading the integer and decimal point in a number,
|
||||
// such as after reading `1.`.
|
||||
func stateDot(s *scanner, c byte) int {
|
||||
if '0' <= c && c <= '9' {
|
||||
s.step = stateDot0
|
||||
return scanContinue
|
||||
}
|
||||
return s.error(c, "after decimal point in numeric literal")
|
||||
}
|
||||
|
||||
// stateDot0 is the state after reading the integer, decimal point, and subsequent
|
||||
// digits of a number, such as after reading `3.14`.
|
||||
func stateDot0(s *scanner, c byte) int {
|
||||
if '0' <= c && c <= '9' {
|
||||
return scanContinue
|
||||
}
|
||||
if c == 'e' || c == 'E' {
|
||||
s.step = stateE
|
||||
return scanContinue
|
||||
}
|
||||
return stateEndValue(s, c)
|
||||
}
|
||||
|
||||
// stateE is the state after reading the mantissa and e in a number,
|
||||
// such as after reading `314e` or `0.314e`.
|
||||
func stateE(s *scanner, c byte) int {
|
||||
if c == '+' || c == '-' {
|
||||
s.step = stateESign
|
||||
return scanContinue
|
||||
}
|
||||
return stateESign(s, c)
|
||||
}
|
||||
|
||||
// stateESign is the state after reading the mantissa, e, and sign in a number,
|
||||
// such as after reading `314e-` or `0.314e+`.
|
||||
func stateESign(s *scanner, c byte) int {
|
||||
if '0' <= c && c <= '9' {
|
||||
s.step = stateE0
|
||||
return scanContinue
|
||||
}
|
||||
return s.error(c, "in exponent of numeric literal")
|
||||
}
|
||||
|
||||
// stateE0 is the state after reading the mantissa, e, optional sign,
|
||||
// and at least one digit of the exponent in a number,
|
||||
// such as after reading `314e-2` or `0.314e+1` or `3.14e0`.
|
||||
func stateE0(s *scanner, c byte) int {
|
||||
if '0' <= c && c <= '9' {
|
||||
return scanContinue
|
||||
}
|
||||
return stateEndValue(s, c)
|
||||
}
|
||||
|
||||
// stateT is the state after reading `t`.
|
||||
func stateT(s *scanner, c byte) int {
|
||||
if c == 'r' {
|
||||
s.step = stateTr
|
||||
return scanContinue
|
||||
}
|
||||
return s.error(c, "in literal true (expecting 'r')")
|
||||
}
|
||||
|
||||
// stateTr is the state after reading `tr`.
|
||||
func stateTr(s *scanner, c byte) int {
|
||||
if c == 'u' {
|
||||
s.step = stateTru
|
||||
return scanContinue
|
||||
}
|
||||
return s.error(c, "in literal true (expecting 'u')")
|
||||
}
|
||||
|
||||
// stateTru is the state after reading `tru`.
|
||||
func stateTru(s *scanner, c byte) int {
|
||||
if c == 'e' {
|
||||
s.step = stateEndValue
|
||||
return scanContinue
|
||||
}
|
||||
return s.error(c, "in literal true (expecting 'e')")
|
||||
}
|
||||
|
||||
// stateF is the state after reading `f`.
|
||||
func stateF(s *scanner, c byte) int {
|
||||
if c == 'a' {
|
||||
s.step = stateFa
|
||||
return scanContinue
|
||||
}
|
||||
return s.error(c, "in literal false (expecting 'a')")
|
||||
}
|
||||
|
||||
// stateFa is the state after reading `fa`.
|
||||
func stateFa(s *scanner, c byte) int {
|
||||
if c == 'l' {
|
||||
s.step = stateFal
|
||||
return scanContinue
|
||||
}
|
||||
return s.error(c, "in literal false (expecting 'l')")
|
||||
}
|
||||
|
||||
// stateFal is the state after reading `fal`.
|
||||
func stateFal(s *scanner, c byte) int {
|
||||
if c == 's' {
|
||||
s.step = stateFals
|
||||
return scanContinue
|
||||
}
|
||||
return s.error(c, "in literal false (expecting 's')")
|
||||
}
|
||||
|
||||
// stateFals is the state after reading `fals`.
|
||||
func stateFals(s *scanner, c byte) int {
|
||||
if c == 'e' {
|
||||
s.step = stateEndValue
|
||||
return scanContinue
|
||||
}
|
||||
return s.error(c, "in literal false (expecting 'e')")
|
||||
}
|
||||
|
||||
// stateN is the state after reading `n`.
|
||||
func stateN(s *scanner, c byte) int {
|
||||
if c == 'u' {
|
||||
s.step = stateNu
|
||||
return scanContinue
|
||||
}
|
||||
return s.error(c, "in literal null (expecting 'u')")
|
||||
}
|
||||
|
||||
// stateNu is the state after reading `nu`.
|
||||
func stateNu(s *scanner, c byte) int {
|
||||
if c == 'l' {
|
||||
s.step = stateNul
|
||||
return scanContinue
|
||||
}
|
||||
return s.error(c, "in literal null (expecting 'l')")
|
||||
}
|
||||
|
||||
// stateNul is the state after reading `nul`.
|
||||
func stateNul(s *scanner, c byte) int {
|
||||
if c == 'l' {
|
||||
s.step = stateEndValue
|
||||
return scanContinue
|
||||
}
|
||||
return s.error(c, "in literal null (expecting 'l')")
|
||||
}
|
||||
|
||||
// stateError is the state after reaching a syntax error,
|
||||
// such as after reading `[1}` or `5.1.2`.
|
||||
func stateError(s *scanner, c byte) int {
|
||||
return scanError
|
||||
}
|
||||
|
||||
// error records an error and switches to the error state.
|
||||
func (s *scanner) error(c byte, context string) int {
|
||||
s.step = stateError
|
||||
s.err = &SyntaxError{"invalid character " + quoteChar(c) + " " + context, s.bytes}
|
||||
return scanError
|
||||
}
|
||||
|
||||
// quoteChar formats c as a quoted character literal
|
||||
func quoteChar(c byte) string {
|
||||
// special cases - different from quoted strings
|
||||
if c == '\'' {
|
||||
return `'\''`
|
||||
}
|
||||
if c == '"' {
|
||||
return `'"'`
|
||||
}
|
||||
|
||||
// use quoted string with different quotation marks
|
||||
s := strconv.Quote(string(c))
|
||||
return "'" + s[1:len(s)-1] + "'"
|
||||
}
|
||||
|
||||
// undo causes the scanner to return scanCode from the next state transition.
|
||||
// This gives callers a simple 1-byte undo mechanism.
|
||||
func (s *scanner) undo(scanCode int) {
|
||||
if s.redo {
|
||||
panic("json: invalid use of scanner")
|
||||
}
|
||||
s.redoCode = scanCode
|
||||
s.redoState = s.step
|
||||
s.step = stateRedo
|
||||
s.redo = true
|
||||
}
|
||||
|
||||
// stateRedo helps implement the scanner's 1-byte undo.
|
||||
func stateRedo(s *scanner, c byte) int {
|
||||
s.redo = false
|
||||
s.step = s.redoState
|
||||
return s.redoCode
|
||||
}
|
218
src/jsonld/tables.go
Normal file
218
src/jsonld/tables.go
Normal file
|
@ -0,0 +1,218 @@
|
|||
// Copyright 2016 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package jsonld
|
||||
|
||||
import "unicode/utf8"
|
||||
|
||||
// safeSet holds the value true if the ASCII character with the given array
|
||||
// position can be represented inside a JSON string without any further
|
||||
// escaping.
|
||||
//
|
||||
// All values are true except for the ASCII control characters (0-31), the
|
||||
// double quote ("), and the backslash character ("\").
|
||||
var safeSet = [utf8.RuneSelf]bool{
|
||||
' ': true,
|
||||
'!': true,
|
||||
'"': false,
|
||||
'#': true,
|
||||
'$': true,
|
||||
'%': true,
|
||||
'&': true,
|
||||
'\'': true,
|
||||
'(': true,
|
||||
')': true,
|
||||
'*': true,
|
||||
'+': true,
|
||||
',': true,
|
||||
'-': true,
|
||||
'.': true,
|
||||
'/': true,
|
||||
'0': true,
|
||||
'1': true,
|
||||
'2': true,
|
||||
'3': true,
|
||||
'4': true,
|
||||
'5': true,
|
||||
'6': true,
|
||||
'7': true,
|
||||
'8': true,
|
||||
'9': true,
|
||||
':': true,
|
||||
';': true,
|
||||
'<': true,
|
||||
'=': true,
|
||||
'>': true,
|
||||
'?': true,
|
||||
'@': true,
|
||||
'A': true,
|
||||
'B': true,
|
||||
'C': true,
|
||||
'D': true,
|
||||
'E': true,
|
||||
'F': true,
|
||||
'G': true,
|
||||
'H': true,
|
||||
'I': true,
|
||||
'J': true,
|
||||
'K': true,
|
||||
'L': true,
|
||||
'M': true,
|
||||
'N': true,
|
||||
'O': true,
|
||||
'P': true,
|
||||
'Q': true,
|
||||
'R': true,
|
||||
'S': true,
|
||||
'T': true,
|
||||
'U': true,
|
||||
'V': true,
|
||||
'W': true,
|
||||
'X': true,
|
||||
'Y': true,
|
||||
'Z': true,
|
||||
'[': true,
|
||||
'\\': false,
|
||||
']': true,
|
||||
'^': true,
|
||||
'_': true,
|
||||
'`': true,
|
||||
'a': true,
|
||||
'b': true,
|
||||
'c': true,
|
||||
'd': true,
|
||||
'e': true,
|
||||
'f': true,
|
||||
'g': true,
|
||||
'h': true,
|
||||
'i': true,
|
||||
'j': true,
|
||||
'k': true,
|
||||
'l': true,
|
||||
'm': true,
|
||||
'n': true,
|
||||
'o': true,
|
||||
'p': true,
|
||||
'q': true,
|
||||
'r': true,
|
||||
's': true,
|
||||
't': true,
|
||||
'u': true,
|
||||
'v': true,
|
||||
'w': true,
|
||||
'x': true,
|
||||
'y': true,
|
||||
'z': true,
|
||||
'{': true,
|
||||
'|': true,
|
||||
'}': true,
|
||||
'~': true,
|
||||
'\u007f': true,
|
||||
}
|
||||
|
||||
// htmlSafeSet holds the value true if the ASCII character with the given
|
||||
// array position can be safely represented inside a JSON string, embedded
|
||||
// inside of HTML <script> tags, without any additional escaping.
|
||||
//
|
||||
// All values are true except for the ASCII control characters (0-31), the
|
||||
// double quote ("), the backslash character ("\"), HTML opening and closing
|
||||
// tags ("<" and ">"), and the ampersand ("&").
|
||||
var htmlSafeSet = [utf8.RuneSelf]bool{
|
||||
' ': true,
|
||||
'!': true,
|
||||
'"': false,
|
||||
'#': true,
|
||||
'$': true,
|
||||
'%': true,
|
||||
'&': false,
|
||||
'\'': true,
|
||||
'(': true,
|
||||
')': true,
|
||||
'*': true,
|
||||
'+': true,
|
||||
',': true,
|
||||
'-': true,
|
||||
'.': true,
|
||||
'/': true,
|
||||
'0': true,
|
||||
'1': true,
|
||||
'2': true,
|
||||
'3': true,
|
||||
'4': true,
|
||||
'5': true,
|
||||
'6': true,
|
||||
'7': true,
|
||||
'8': true,
|
||||
'9': true,
|
||||
':': true,
|
||||
';': true,
|
||||
'<': false,
|
||||
'=': true,
|
||||
'>': false,
|
||||
'?': true,
|
||||
'@': true,
|
||||
'A': true,
|
||||
'B': true,
|
||||
'C': true,
|
||||
'D': true,
|
||||
'E': true,
|
||||
'F': true,
|
||||
'G': true,
|
||||
'H': true,
|
||||
'I': true,
|
||||
'J': true,
|
||||
'K': true,
|
||||
'L': true,
|
||||
'M': true,
|
||||
'N': true,
|
||||
'O': true,
|
||||
'P': true,
|
||||
'Q': true,
|
||||
'R': true,
|
||||
'S': true,
|
||||
'T': true,
|
||||
'U': true,
|
||||
'V': true,
|
||||
'W': true,
|
||||
'X': true,
|
||||
'Y': true,
|
||||
'Z': true,
|
||||
'[': true,
|
||||
'\\': false,
|
||||
']': true,
|
||||
'^': true,
|
||||
'_': true,
|
||||
'`': true,
|
||||
'a': true,
|
||||
'b': true,
|
||||
'c': true,
|
||||
'd': true,
|
||||
'e': true,
|
||||
'f': true,
|
||||
'g': true,
|
||||
'h': true,
|
||||
'i': true,
|
||||
'j': true,
|
||||
'k': true,
|
||||
'l': true,
|
||||
'm': true,
|
||||
'n': true,
|
||||
'o': true,
|
||||
'p': true,
|
||||
'q': true,
|
||||
'r': true,
|
||||
's': true,
|
||||
't': true,
|
||||
'u': true,
|
||||
'v': true,
|
||||
'w': true,
|
||||
'x': true,
|
||||
'y': true,
|
||||
'z': true,
|
||||
'{': true,
|
||||
'|': true,
|
||||
'}': true,
|
||||
'~': true,
|
||||
'\u007f': true,
|
||||
}
|
44
src/jsonld/tags.go
Normal file
44
src/jsonld/tags.go
Normal file
|
@ -0,0 +1,44 @@
|
|||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package jsonld
|
||||
|
||||
import (
|
||||
"strings"
|
||||
)
|
||||
|
||||
// tagOptions is the string following a comma in a struct field's "json"
|
||||
// tag, or the empty string. It does not include the leading comma.
|
||||
type tagOptions string
|
||||
|
||||
// parseTag splits a struct field's json tag into its name and
|
||||
// comma-separated options.
|
||||
func parseTag(tag string) (string, tagOptions) {
|
||||
if idx := strings.Index(tag, ","); idx != -1 {
|
||||
return tag[:idx], tagOptions(tag[idx+1:])
|
||||
}
|
||||
return tag, tagOptions("")
|
||||
}
|
||||
|
||||
// Contains reports whether a comma-separated list of options
|
||||
// contains a particular substr flag. substr must be surrounded by a
|
||||
// string boundary or commas.
|
||||
func (o tagOptions) Contains(optionName string) bool {
|
||||
if len(o) == 0 {
|
||||
return false
|
||||
}
|
||||
s := string(o)
|
||||
for s != "" {
|
||||
var next string
|
||||
i := strings.Index(s, ",")
|
||||
if i >= 0 {
|
||||
s, next = s[:i], s[i+1:]
|
||||
}
|
||||
if s == optionName {
|
||||
return true
|
||||
}
|
||||
s = next
|
||||
}
|
||||
return false
|
||||
}
|
Reference in a new issue