mirror of
https://github.com/rclone/rclone.git
synced 2024-12-21 11:06:55 +08:00
bcdfad3c83
This changes log statements from log to fs package, which is required for --use-json-log to properly make log output in JSON format. The recently added custom linting rule, handled by ruleguard via gocritic via golangci-lint, warns about these and suggests the alternative. Fixing was therefore basically running "golangci-lint run --fix", although some manual fixup of mainly imports are necessary following that.
631 lines
15 KiB
Go
631 lines
15 KiB
Go
// Package main provides utilities for encoder.
|
||
package main
|
||
|
||
import (
|
||
"flag"
|
||
"fmt"
|
||
"math/rand"
|
||
"os"
|
||
"strconv"
|
||
"strings"
|
||
|
||
"github.com/rclone/rclone/fs"
|
||
"github.com/rclone/rclone/lib/encoder"
|
||
)
|
||
|
||
const (
|
||
edgeLeft = iota
|
||
edgeRight
|
||
)
|
||
|
||
type mapping struct {
|
||
mask encoder.MultiEncoder
|
||
src, dst []rune
|
||
}
|
||
type stringPair struct {
|
||
a, b string
|
||
}
|
||
|
||
const header = `// Code generated by ./internal/gen/main.go. DO NOT EDIT.
|
||
|
||
` + `//go:generate go run ./internal/gen/main.go
|
||
|
||
package encoder
|
||
|
||
`
|
||
|
||
var maskBits = []struct {
|
||
mask encoder.MultiEncoder
|
||
name string
|
||
}{
|
||
{encoder.EncodeZero, "EncodeZero"},
|
||
{encoder.EncodeSlash, "EncodeSlash"},
|
||
{encoder.EncodeSingleQuote, "EncodeSingleQuote"},
|
||
{encoder.EncodeBackQuote, "EncodeBackQuote"},
|
||
{encoder.EncodeLtGt, "EncodeLtGt"},
|
||
{encoder.EncodeSquareBracket, "EncodeSquareBracket"},
|
||
{encoder.EncodeSemicolon, "EncodeSemicolon"},
|
||
{encoder.EncodeExclamation, "EncodeExclamation"},
|
||
{encoder.EncodeDollar, "EncodeDollar"},
|
||
{encoder.EncodeDoubleQuote, "EncodeDoubleQuote"},
|
||
{encoder.EncodeColon, "EncodeColon"},
|
||
{encoder.EncodeQuestion, "EncodeQuestion"},
|
||
{encoder.EncodeAsterisk, "EncodeAsterisk"},
|
||
{encoder.EncodePipe, "EncodePipe"},
|
||
{encoder.EncodeHash, "EncodeHash"},
|
||
{encoder.EncodePercent, "EncodePercent"},
|
||
{encoder.EncodeBackSlash, "EncodeBackSlash"},
|
||
{encoder.EncodeCrLf, "EncodeCrLf"},
|
||
{encoder.EncodeDel, "EncodeDel"},
|
||
{encoder.EncodeCtl, "EncodeCtl"},
|
||
{encoder.EncodeLeftSpace, "EncodeLeftSpace"},
|
||
{encoder.EncodeLeftPeriod, "EncodeLeftPeriod"},
|
||
{encoder.EncodeLeftTilde, "EncodeLeftTilde"},
|
||
{encoder.EncodeLeftCrLfHtVt, "EncodeLeftCrLfHtVt"},
|
||
{encoder.EncodeRightSpace, "EncodeRightSpace"},
|
||
{encoder.EncodeRightPeriod, "EncodeRightPeriod"},
|
||
{encoder.EncodeRightCrLfHtVt, "EncodeRightCrLfHtVt"},
|
||
{encoder.EncodeInvalidUtf8, "EncodeInvalidUtf8"},
|
||
{encoder.EncodeDot, "EncodeDot"},
|
||
}
|
||
|
||
type edge struct {
|
||
mask encoder.MultiEncoder
|
||
name string
|
||
edge int
|
||
orig []rune
|
||
replace []rune
|
||
}
|
||
|
||
var allEdges = []edge{
|
||
{encoder.EncodeLeftSpace, "EncodeLeftSpace", edgeLeft, []rune{' '}, []rune{'␠'}},
|
||
{encoder.EncodeLeftPeriod, "EncodeLeftPeriod", edgeLeft, []rune{'.'}, []rune{'．'}},
|
||
{encoder.EncodeLeftTilde, "EncodeLeftTilde", edgeLeft, []rune{'~'}, []rune{'～'}},
|
||
{encoder.EncodeLeftCrLfHtVt, "EncodeLeftCrLfHtVt", edgeLeft,
|
||
[]rune{'\t', '\n', '\v', '\r'},
|
||
[]rune{'␀' + '\t', '␀' + '\n', '␀' + '\v', '␀' + '\r'},
|
||
},
|
||
{encoder.EncodeRightSpace, "EncodeRightSpace", edgeRight, []rune{' '}, []rune{'␠'}},
|
||
{encoder.EncodeRightPeriod, "EncodeRightPeriod", edgeRight, []rune{'.'}, []rune{'．'}},
|
||
{encoder.EncodeRightCrLfHtVt, "EncodeRightCrLfHtVt", edgeRight,
|
||
[]rune{'\t', '\n', '\v', '\r'},
|
||
[]rune{'␀' + '\t', '␀' + '\n', '␀' + '\v', '␀' + '\r'},
|
||
},
|
||
}
|
||
|
||
var allMappings = []mapping{{
|
||
encoder.EncodeZero, []rune{
|
||
0,
|
||
}, []rune{
|
||
'␀',
|
||
}}, {
|
||
encoder.EncodeSlash, []rune{
|
||
'/',
|
||
}, []rune{
|
||
'／',
|
||
}}, {
|
||
encoder.EncodeLtGt, []rune{
|
||
'<', '>',
|
||
}, []rune{
|
||
'＜', '＞',
|
||
}}, {
|
||
encoder.EncodeSquareBracket, []rune{
|
||
'[', ']',
|
||
}, []rune{
|
||
'［', '］',
|
||
}}, {
|
||
encoder.EncodeSemicolon, []rune{
|
||
';',
|
||
}, []rune{
|
||
'；',
|
||
}}, {
|
||
encoder.EncodeExclamation, []rune{
|
||
'!',
|
||
}, []rune{
|
||
'！',
|
||
}}, {
|
||
encoder.EncodeDoubleQuote, []rune{
|
||
'"',
|
||
}, []rune{
|
||
'＂',
|
||
}}, {
|
||
encoder.EncodeSingleQuote, []rune{
|
||
'\'',
|
||
}, []rune{
|
||
'＇',
|
||
}}, {
|
||
encoder.EncodeBackQuote, []rune{
|
||
'`',
|
||
}, []rune{
|
||
'｀',
|
||
}}, {
|
||
encoder.EncodeDollar, []rune{
|
||
'$',
|
||
}, []rune{
|
||
'＄',
|
||
}}, {
|
||
encoder.EncodeColon, []rune{
|
||
':',
|
||
}, []rune{
|
||
'：',
|
||
}}, {
|
||
encoder.EncodeQuestion, []rune{
|
||
'?',
|
||
}, []rune{
|
||
'？',
|
||
}}, {
|
||
encoder.EncodeAsterisk, []rune{
|
||
'*',
|
||
}, []rune{
|
||
'＊',
|
||
}}, {
|
||
encoder.EncodePipe, []rune{
|
||
'|',
|
||
}, []rune{
|
||
'｜',
|
||
}}, {
|
||
encoder.EncodeHash, []rune{
|
||
'#',
|
||
}, []rune{
|
||
'＃',
|
||
}}, {
|
||
encoder.EncodePercent, []rune{
|
||
'%',
|
||
}, []rune{
|
||
'％',
|
||
}}, {
|
||
encoder.EncodeSlash, []rune{
|
||
'/',
|
||
}, []rune{
|
||
'／',
|
||
}}, {
|
||
encoder.EncodeBackSlash, []rune{
|
||
'\\',
|
||
}, []rune{
|
||
'＼',
|
||
}}, {
|
||
encoder.EncodeCrLf, []rune{
|
||
rune(0x0D), rune(0x0A),
|
||
}, []rune{
|
||
'␍', '␊',
|
||
}}, {
|
||
encoder.EncodeDel, []rune{
|
||
0x7F,
|
||
}, []rune{
|
||
'␡',
|
||
}}, {
|
||
encoder.EncodeCtl,
|
||
runeRange(0x01, 0x1F),
|
||
runeRange('␁', '␟'),
|
||
}}
|
||
|
||
var (
|
||
rng *rand.Rand
|
||
|
||
printables = runeRange(0x20, 0x7E)
|
||
fullwidthPrintables = runeRange(0xFF00, 0xFF5E)
|
||
encodables = collectEncodables(allMappings)
|
||
encoded = collectEncoded(allMappings)
|
||
greek = runeRange(0x03B1, 0x03C9)
|
||
)
|
||
|
||
func main() {
|
||
seed := flag.Int64("s", 42, "random seed")
|
||
flag.Parse()
|
||
rng = rand.New(rand.NewSource(*seed))
|
||
|
||
fd, err := os.Create("encoder_cases_test.go")
|
||
fatal(err, "Unable to open encoder_cases_test.go:")
|
||
defer func() {
|
||
fatal(fd.Close(), "Failed to close encoder_cases_test.go:")
|
||
}()
|
||
fatalW(fd.WriteString(header))("Failed to write header:")
|
||
|
||
fatalW(fd.WriteString("var testCasesSingle = []testCase{\n\t"))("Write:")
|
||
_i := 0
|
||
i := func() (r int) {
|
||
r, _i = _i, _i+1
|
||
return
|
||
}
|
||
for _, m := range maskBits {
|
||
if len(getMapping(m.mask).src) == 0 {
|
||
continue
|
||
}
|
||
if _i != 0 {
|
||
fatalW(fd.WriteString(" "))("Write:")
|
||
}
|
||
in, out := buildTestString(
|
||
[]mapping{getMapping(m.mask)}, // pick
|
||
[]mapping{getMapping(encoder.EncodeZero)}, // quote
|
||
printables, fullwidthPrintables, encodables, encoded, greek) // fill
|
||
fatalW(fmt.Fprintf(fd, `{ // %d
|
||
mask: %s,
|
||
in: %s,
|
||
out: %s,
|
||
},`, i(), m.name, strconv.Quote(in), strconv.Quote(out)))("Error writing test case:")
|
||
}
|
||
fatalW(fd.WriteString(`
|
||
}
|
||
|
||
var testCasesSingleEdge = []testCase{
|
||
`))("Write:")
|
||
_i = 0
|
||
for _, e := range allEdges {
|
||
for idx, orig := range e.orig {
|
||
if _i != 0 {
|
||
fatalW(fd.WriteString(" "))("Write:")
|
||
}
|
||
fatalW(fmt.Fprintf(fd, `{ // %d
|
||
mask: %s,
|
||
in: %s,
|
||
out: %s,
|
||
},`, i(), e.name, strconv.Quote(string(orig)), strconv.Quote(string(e.replace[idx]))))("Error writing test case:")
|
||
}
|
||
for _, m := range maskBits {
|
||
if len(getMapping(m.mask).src) == 0 || invalidMask(e.mask|m.mask) {
|
||
continue
|
||
}
|
||
for idx, orig := range e.orig {
|
||
replace := e.replace[idx]
|
||
pairs := buildEdgeTestString(
|
||
[]edge{e}, []mapping{getMapping(encoder.EncodeZero), getMapping(m.mask)}, // quote
|
||
[][]rune{printables, fullwidthPrintables, encodables, encoded, greek}, // fill
|
||
func(rIn, rOut []rune, quoteOut []bool, testMappings []mapping) (out []stringPair) {
|
||
testL := len(rIn)
|
||
skipOrig := false
|
||
for _, m := range testMappings {
|
||
if runePos(orig, m.src) != -1 || runePos(orig, m.dst) != -1 {
|
||
skipOrig = true
|
||
break
|
||
}
|
||
}
|
||
if !skipOrig {
|
||
rIn[10], rOut[10], quoteOut[10] = orig, orig, false
|
||
}
|
||
|
||
out = append(out, stringPair{string(rIn), quotedToString(rOut, quoteOut)})
|
||
for _, i := range []int{0, 1, testL - 2, testL - 1} {
|
||
for _, j := range []int{1, testL - 2, testL - 1} {
|
||
if j < i {
|
||
continue
|
||
}
|
||
rIn := append([]rune{}, rIn...)
|
||
rOut := append([]rune{}, rOut...)
|
||
quoteOut := append([]bool{}, quoteOut...)
|
||
|
||
for _, in := range []rune{orig, replace} {
|
||
expect, quote := in, false
|
||
if i == 0 && e.edge == edgeLeft ||
|
||
i == testL-1 && e.edge == edgeRight {
|
||
expect, quote = replace, in == replace
|
||
}
|
||
rIn[i], rOut[i], quoteOut[i] = in, expect, quote
|
||
|
||
if i != j {
|
||
for _, in := range []rune{orig, replace} {
|
||
expect, quote = in, false
|
||
if j == testL-1 && e.edge == edgeRight {
|
||
expect, quote = replace, in == replace
|
||
}
|
||
rIn[j], rOut[j], quoteOut[j] = in, expect, quote
|
||
}
|
||
}
|
||
out = append(out, stringPair{string(rIn), quotedToString(rOut, quoteOut)})
|
||
}
|
||
}
|
||
}
|
||
return
|
||
})
|
||
for _, p := range pairs {
|
||
fatalW(fmt.Fprintf(fd, ` { // %d
|
||
mask: %s | %s,
|
||
in: %s,
|
||
out: %s,
|
||
},`, i(), m.name, e.name, strconv.Quote(p.a), strconv.Quote(p.b)))("Error writing test case:")
|
||
}
|
||
}
|
||
}
|
||
}
|
||
fatalW(fmt.Fprintf(fd, ` { // %d
|
||
mask: EncodeLeftSpace,
|
||
in: " ",
|
||
out: "␠ ",
|
||
}, { // %d
|
||
mask: EncodeLeftPeriod,
|
||
in: "..",
|
||
out: "．.",
|
||
}, { // %d
|
||
mask: EncodeLeftTilde,
|
||
in: "~~",
|
||
out: "～~",
|
||
}, { // %d
|
||
mask: EncodeRightSpace,
|
||
in: " ",
|
||
out: " ␠",
|
||
}, { // %d
|
||
mask: EncodeRightPeriod,
|
||
in: "..",
|
||
out: ".．",
|
||
}, { // %d
|
||
mask: EncodeLeftSpace | EncodeRightPeriod,
|
||
in: " .",
|
||
out: "␠．",
|
||
}, { // %d
|
||
mask: EncodeLeftSpace | EncodeRightSpace,
|
||
in: " ",
|
||
out: "␠",
|
||
}, { // %d
|
||
mask: EncodeLeftSpace | EncodeRightSpace,
|
||
in: " ",
|
||
out: "␠␠",
|
||
}, { // %d
|
||
mask: EncodeLeftSpace | EncodeRightSpace,
|
||
in: " ",
|
||
out: "␠ ␠",
|
||
}, { // %d
|
||
mask: EncodeLeftPeriod | EncodeRightPeriod,
|
||
in: "...",
|
||
out: "．.．",
|
||
}, { // %d
|
||
mask: EncodeRightPeriod | EncodeRightSpace,
|
||
in: "a. ",
|
||
out: "a.␠",
|
||
}, { // %d
|
||
mask: EncodeRightPeriod | EncodeRightSpace,
|
||
in: "a .",
|
||
out: "a ．",
|
||
},
|
||
}
|
||
|
||
var testCasesDoubleEdge = []testCase{
|
||
`, i(), i(), i(), i(), i(), i(), i(), i(), i(), i(), i(), i()))("Error writing test case:")
|
||
_i = 0
|
||
for _, e1 := range allEdges {
|
||
for _, e2 := range allEdges {
|
||
if e1.mask == e2.mask {
|
||
continue
|
||
}
|
||
for _, m := range maskBits {
|
||
if len(getMapping(m.mask).src) == 0 || invalidMask(m.mask|e1.mask|e2.mask) {
|
||
continue
|
||
}
|
||
orig, replace := e1.orig[0], e1.replace[0]
|
||
edges := []edge{e1, e2}
|
||
pairs := buildEdgeTestString(
|
||
edges, []mapping{getMapping(encoder.EncodeZero), getMapping(m.mask)}, // quote
|
||
[][]rune{printables, fullwidthPrintables, encodables, encoded, greek}, // fill
|
||
func(rIn, rOut []rune, quoteOut []bool, testMappings []mapping) (out []stringPair) {
|
||
testL := len(rIn)
|
||
for _, i := range []int{0, testL - 1} {
|
||
for _, secondOrig := range e2.orig {
|
||
rIn := append([]rune{}, rIn...)
|
||
rOut := append([]rune{}, rOut...)
|
||
quoteOut := append([]bool{}, quoteOut...)
|
||
|
||
rIn[1], rOut[1], quoteOut[1] = secondOrig, secondOrig, false
|
||
rIn[testL-2], rOut[testL-2], quoteOut[testL-2] = secondOrig, secondOrig, false
|
||
|
||
for _, in := range []rune{orig, replace} {
|
||
rIn[i], rOut[i], quoteOut[i] = in, in, false
|
||
fixEdges(rIn, rOut, quoteOut, edges)
|
||
|
||
out = append(out, stringPair{string(rIn), quotedToString(rOut, quoteOut)})
|
||
}
|
||
}
|
||
}
|
||
return
|
||
})
|
||
|
||
for _, p := range pairs {
|
||
if _i != 0 {
|
||
fatalW(fd.WriteString(" "))("Write:")
|
||
}
|
||
fatalW(fmt.Fprintf(fd, `{ // %d
|
||
mask: %s | %s | %s,
|
||
in: %s,
|
||
out: %s,
|
||
},`, i(), m.name, e1.name, e2.name, strconv.Quote(p.a), strconv.Quote(p.b)))("Error writing test case:")
|
||
}
|
||
}
|
||
}
|
||
}
|
||
fatalW(fmt.Fprint(fd, "\n}\n"))("Error writing test case:")
|
||
}
|
||
|
||
func fatal(err error, s ...interface{}) {
|
||
if err != nil {
|
||
fs.Fatal(nil, fmt.Sprint(append(s, err)))
|
||
}
|
||
}
|
||
func fatalW(_ int, err error) func(...interface{}) {
|
||
if err != nil {
|
||
return func(s ...interface{}) {
|
||
fs.Fatal(nil, fmt.Sprint(append(s, err)))
|
||
}
|
||
}
|
||
return func(s ...interface{}) {}
|
||
}
|
||
|
||
func invalidMask(mask encoder.MultiEncoder) bool {
|
||
return mask&(encoder.EncodeCtl|encoder.EncodeCrLf) != 0 && mask&(encoder.EncodeLeftCrLfHtVt|encoder.EncodeRightCrLfHtVt) != 0
|
||
}
|
||
|
||
// construct a slice containing the runes between (l)ow (inclusive) and (h)igh (inclusive)
|
||
func runeRange(l, h rune) []rune {
|
||
if h < l {
|
||
panic("invalid range")
|
||
}
|
||
out := make([]rune, h-l+1)
|
||
for i := range out {
|
||
out[i] = l + rune(i)
|
||
}
|
||
return out
|
||
}
|
||
|
||
func getMapping(mask encoder.MultiEncoder) mapping {
|
||
for _, m := range allMappings {
|
||
if m.mask == mask {
|
||
return m
|
||
}
|
||
}
|
||
return mapping{}
|
||
}
|
||
func collectEncodables(m []mapping) (out []rune) {
|
||
for _, s := range m {
|
||
out = append(out, s.src...)
|
||
}
|
||
return
|
||
}
|
||
func collectEncoded(m []mapping) (out []rune) {
|
||
for _, s := range m {
|
||
out = append(out, s.dst...)
|
||
}
|
||
return
|
||
}
|
||
|
||
func buildTestString(mappings, testMappings []mapping, fill ...[]rune) (string, string) {
|
||
combinedMappings := append(mappings, testMappings...)
|
||
var (
|
||
rIn []rune
|
||
rOut []rune
|
||
)
|
||
for _, m := range mappings {
|
||
if len(m.src) == 0 || len(m.src) != len(m.dst) {
|
||
panic("invalid length")
|
||
}
|
||
rIn = append(rIn, m.src...)
|
||
rOut = append(rOut, m.dst...)
|
||
}
|
||
inL := len(rIn)
|
||
testL := inL * 3
|
||
if testL < 30 {
|
||
testL = 30
|
||
}
|
||
rIn = append(rIn, make([]rune, testL-inL)...)
|
||
rOut = append(rOut, make([]rune, testL-inL)...)
|
||
quoteOut := make([]bool, testL)
|
||
set := func(i int, in, out rune, quote bool) {
|
||
rIn[i] = in
|
||
rOut[i] = out
|
||
quoteOut[i] = quote
|
||
}
|
||
for i, r := range rOut[:inL] {
|
||
set(inL+i, r, r, true)
|
||
}
|
||
|
||
outer:
|
||
for pos := inL * 2; pos < testL; pos++ {
|
||
m := pos % len(fill)
|
||
i := rng.Intn(len(fill[m]))
|
||
r := fill[m][i]
|
||
for _, m := range combinedMappings {
|
||
if pSrc := runePos(r, m.src); pSrc != -1 {
|
||
set(pos, r, m.dst[pSrc], false)
|
||
continue outer
|
||
} else if pDst := runePos(r, m.dst); pDst != -1 {
|
||
set(pos, r, r, true)
|
||
continue outer
|
||
}
|
||
}
|
||
set(pos, r, r, false)
|
||
}
|
||
|
||
rng.Shuffle(testL, func(i, j int) {
|
||
rIn[i], rIn[j] = rIn[j], rIn[i]
|
||
rOut[i], rOut[j] = rOut[j], rOut[i]
|
||
quoteOut[i], quoteOut[j] = quoteOut[j], quoteOut[i]
|
||
})
|
||
|
||
var bOut strings.Builder
|
||
bOut.Grow(testL)
|
||
for i, r := range rOut {
|
||
if quoteOut[i] {
|
||
bOut.WriteRune(encoder.QuoteRune)
|
||
}
|
||
bOut.WriteRune(r)
|
||
}
|
||
return string(rIn), bOut.String()
|
||
}
|
||
|
||
func buildEdgeTestString(edges []edge, testMappings []mapping, fill [][]rune,
|
||
gen func(rIn, rOut []rune, quoteOut []bool, testMappings []mapping) []stringPair,
|
||
) []stringPair {
|
||
testL := 30
|
||
rIn := make([]rune, testL) // test input string
|
||
rOut := make([]rune, testL) // test output string without quote runes
|
||
quoteOut := make([]bool, testL) // if true insert quote rune before the output rune
|
||
|
||
set := func(i int, in, out rune, quote bool) {
|
||
rIn[i] = in
|
||
rOut[i] = out
|
||
quoteOut[i] = quote
|
||
}
|
||
|
||
// populate test strings with values from the `fill` set
|
||
outer:
|
||
for pos := 0; pos < testL; pos++ {
|
||
m := pos % len(fill)
|
||
i := rng.Intn(len(fill[m]))
|
||
r := fill[m][i]
|
||
for _, m := range testMappings {
|
||
if pSrc := runePos(r, m.src); pSrc != -1 {
|
||
set(pos, r, m.dst[pSrc], false)
|
||
continue outer
|
||
} else if pDst := runePos(r, m.dst); pDst != -1 {
|
||
set(pos, r, r, true)
|
||
continue outer
|
||
}
|
||
}
|
||
set(pos, r, r, false)
|
||
}
|
||
|
||
rng.Shuffle(testL, func(i, j int) {
|
||
rIn[i], rIn[j] = rIn[j], rIn[i]
|
||
rOut[i], rOut[j] = rOut[j], rOut[i]
|
||
quoteOut[i], quoteOut[j] = quoteOut[j], quoteOut[i]
|
||
})
|
||
fixEdges(rIn, rOut, quoteOut, edges)
|
||
return gen(rIn, rOut, quoteOut, testMappings)
|
||
}
|
||
|
||
func fixEdges(rIn, rOut []rune, quoteOut []bool, edges []edge) {
|
||
testL := len(rIn)
|
||
for _, e := range edges {
|
||
for idx, o := range e.orig {
|
||
r := e.replace[idx]
|
||
if e.edge == edgeLeft && rIn[0] == o {
|
||
rOut[0], quoteOut[0] = r, false
|
||
} else if e.edge == edgeLeft && rIn[0] == r {
|
||
quoteOut[0] = true
|
||
} else if e.edge == edgeRight && rIn[testL-1] == o {
|
||
rOut[testL-1], quoteOut[testL-1] = r, false
|
||
} else if e.edge == edgeRight && rIn[testL-1] == r {
|
||
quoteOut[testL-1] = true
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
func runePos(r rune, s []rune) int {
|
||
for i, c := range s {
|
||
if c == r {
|
||
return i
|
||
}
|
||
}
|
||
return -1
|
||
}
|
||
|
||
// quotedToString returns a string for the chars slice where an encoder.QuoteRune is
|
||
// inserted before a char[i] when quoted[i] is true.
|
||
func quotedToString(chars []rune, quoted []bool) string {
|
||
var out strings.Builder
|
||
out.Grow(len(chars))
|
||
for i, r := range chars {
|
||
if quoted[i] {
|
||
out.WriteRune(encoder.QuoteRune)
|
||
}
|
||
out.WriteRune(r)
|
||
}
|
||
return out.String()
|
||
}
|