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Commit d7e13eb9 authored by songlinfeng's avatar songlinfeng
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add dtk-container-toolkit

parent fcdba4f3
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vendor/github.com/pelletier/go-toml/azure-pipelines.yml 0 → 100644
View file @ d7e13eb9
trigger:
- master
stages:
- stage: run_checks
displayName: "Check"
dependsOn: []
jobs:
- job: fmt
displayName: "fmt"
pool:
vmImage: ubuntu-latest
steps:
- task: GoTool@0
displayName: "Install Go 1.16"
inputs:
version: "1.16"
- task: Go@0
displayName: "go fmt ./..."
inputs:
command: 'custom'
customCommand: 'fmt'
arguments: './...'
- job: coverage
displayName: "coverage"
pool:
vmImage: ubuntu-latest
steps:
- task: GoTool@0
displayName: "Install Go 1.16"
inputs:
version: "1.16"
- task: Go@0
displayName: "Generate coverage"
inputs:
command: 'test'
arguments: "-race -coverprofile=coverage.txt -covermode=atomic"
- task: Bash@3
inputs:
targetType: 'inline'
script: 'bash <(curl -s https://codecov.io/bash) -t ${CODECOV_TOKEN}'
env:
CODECOV_TOKEN: $(CODECOV_TOKEN)
- job: benchmark
displayName: "benchmark"
pool:
vmImage: ubuntu-latest
steps:
- task: GoTool@0
displayName: "Install Go 1.16"
inputs:
version: "1.16"
- script: echo "##vso[task.setvariable variable=PATH]${PATH}:/home/vsts/go/bin/"
- task: Bash@3
inputs:
filePath: './benchmark.sh'
arguments: "master $(Build.Repository.Uri)"
- job: go_unit_tests
displayName: "unit tests"
strategy:
matrix:
linux 1.16:
goVersion: '1.16'
imageName: 'ubuntu-latest'
mac 1.16:
goVersion: '1.16'
imageName: 'macOS-latest'
windows 1.16:
goVersion: '1.16'
imageName: 'windows-latest'
linux 1.15:
goVersion: '1.15'
imageName: 'ubuntu-latest'
mac 1.15:
goVersion: '1.15'
imageName: 'macOS-latest'
windows 1.15:
goVersion: '1.15'
imageName: 'windows-latest'
pool:
vmImage: $(imageName)
steps:
- task: GoTool@0
displayName: "Install Go $(goVersion)"
inputs:
version: $(goVersion)
- task: Go@0
displayName: "go test ./..."
inputs:
command: 'test'
arguments: './...'
- stage: build_binaries
displayName: "Build binaries"
dependsOn: run_checks
jobs:
- job: build_binary
displayName: "Build binary"
strategy:
matrix:
linux_amd64:
GOOS: linux
GOARCH: amd64
darwin_amd64:
GOOS: darwin
GOARCH: amd64
windows_amd64:
GOOS: windows
GOARCH: amd64
pool:
vmImage: ubuntu-latest
steps:
- task: GoTool@0
displayName: "Install Go"
inputs:
version: 1.16
- task: Bash@3
inputs:
targetType: inline
script: "make dist"
env:
go.goos: $(GOOS)
go.goarch: $(GOARCH)
- task: CopyFiles@2
inputs:
sourceFolder: '$(Build.SourcesDirectory)'
contents: '*.tar.xz'
TargetFolder: '$(Build.ArtifactStagingDirectory)'
- task: PublishBuildArtifacts@1
inputs:
pathtoPublish: '$(Build.ArtifactStagingDirectory)'
artifactName: binaries
- stage: build_binaries_manifest
displayName: "Build binaries manifest"
dependsOn: build_binaries
jobs:
- job: build_manifest
displayName: "Build binaries manifest"
steps:
- task: DownloadBuildArtifacts@0
inputs:
buildType: 'current'
downloadType: 'single'
artifactName: 'binaries'
downloadPath: '$(Build.SourcesDirectory)'
- task: Bash@3
inputs:
targetType: inline
script: "cd binaries && sha256sum --binary *.tar.xz | tee $(Build.ArtifactStagingDirectory)/sha256sums.txt"
- task: PublishBuildArtifacts@1
inputs:
pathtoPublish: '$(Build.ArtifactStagingDirectory)'
artifactName: manifest
- stage: build_docker_image
displayName: "Build Docker image"
dependsOn: run_checks
jobs:
- job: build
displayName: "Build"
pool:
vmImage: ubuntu-latest
steps:
- task: Docker@2
inputs:
command: 'build'
Dockerfile: 'Dockerfile'
buildContext: '.'
addPipelineData: false
- stage: publish_docker_image
displayName: "Publish Docker image"
dependsOn: build_docker_image
condition: and(succeeded(), eq(variables['Build.SourceBranchName'], 'master'))
jobs:
- job: publish
displayName: "Publish"
pool:
vmImage: ubuntu-latest
steps:
- task: Docker@2
inputs:
containerRegistry: 'DockerHub'
repository: 'pelletier/go-toml'
command: 'buildAndPush'
Dockerfile: 'Dockerfile'
buildContext: '.'
tags: 'latest'
vendor/github.com/pelletier/go-toml/benchmark.sh 0 → 100644
View file @ d7e13eb9
#!/bin/bash
set -ex
reference_ref=${1:-master}
reference_git=${2:-.}
if ! `hash benchstat 2>/dev/null`; then
echo "Installing benchstat"
go get golang.org/x/perf/cmd/benchstat
fi
tempdir=`mktemp -d /tmp/go-toml-benchmark-XXXXXX`
ref_tempdir="${tempdir}/ref"
ref_benchmark="${ref_tempdir}/benchmark-`echo -n ${reference_ref}|tr -s '/' '-'`.txt"
local_benchmark="`pwd`/benchmark-local.txt"
echo "=== ${reference_ref} (${ref_tempdir})"
git clone ${reference_git} ${ref_tempdir} >/dev/null 2>/dev/null
pushd ${ref_tempdir} >/dev/null
git checkout ${reference_ref} >/dev/null 2>/dev/null
go test -bench=. -benchmem | tee ${ref_benchmark}
cd benchmark
go test -bench=. -benchmem | tee -a ${ref_benchmark}
popd >/dev/null
echo ""
echo "=== local"
go test -bench=. -benchmem | tee ${local_benchmark}
cd benchmark
go test -bench=. -benchmem | tee -a ${local_benchmark}
echo ""
echo "=== diff"
benchstat -delta-test=none ${ref_benchmark} ${local_benchmark}
vendor/github.com/pelletier/go-toml/doc.go 0 → 100644
View file @ d7e13eb9
// Package toml is a TOML parser and manipulation library.
//
// This version supports the specification as described in
// https://github.com/toml-lang/toml/blob/master/versions/en/toml-v0.5.0.md
//
// Marshaling
//
// Go-toml can marshal and unmarshal TOML documents from and to data
// structures.
//
// TOML document as a tree
//
// Go-toml can operate on a TOML document as a tree. Use one of the Load*
// functions to parse TOML data and obtain a Tree instance, then one of its
// methods to manipulate the tree.
//
// JSONPath-like queries
//
// The package github.com/pelletier/go-toml/query implements a system
// similar to JSONPath to quickly retrieve elements of a TOML document using a
// single expression. See the package documentation for more information.
//
package toml
vendor/github.com/pelletier/go-toml/example-crlf.toml 0 → 100644
View file @ d7e13eb9
# This is a TOML document. Boom.
title = "TOML Example"
[owner]
name = "Tom Preston-Werner"
organization = "GitHub"
bio = "GitHub Cofounder & CEO\nLikes tater tots and beer."
dob = 1979-05-27T07:32:00Z # First class dates? Why not?
[database]
server = "192.168.1.1"
ports = [ 8001, 8001, 8002 ]
connection_max = 5000
enabled = true
[servers]
# You can indent as you please. Tabs or spaces. TOML don't care.
[servers.alpha]
ip = "10.0.0.1"
dc = "eqdc10"
[servers.beta]
ip = "10.0.0.2"
dc = "eqdc10"
[clients]
data = [ ["gamma", "delta"], [1, 2] ] # just an update to make sure parsers support it
score = 4e-08 # to make sure leading zeroes in exponent parts of floats are supported
\ No newline at end of file
vendor/github.com/pelletier/go-toml/example.toml 0 → 100644
View file @ d7e13eb9
# This is a TOML document. Boom.
title = "TOML Example"
[owner]
name = "Tom Preston-Werner"
organization = "GitHub"
bio = "GitHub Cofounder & CEO\nLikes tater tots and beer."
dob = 1979-05-27T07:32:00Z # First class dates? Why not?
[database]
server = "192.168.1.1"
ports = [ 8001, 8001, 8002 ]
connection_max = 5000
enabled = true
[servers]
# You can indent as you please. Tabs or spaces. TOML don't care.
[servers.alpha]
ip = "10.0.0.1"
dc = "eqdc10"
[servers.beta]
ip = "10.0.0.2"
dc = "eqdc10"
[clients]
data = [ ["gamma", "delta"], [1, 2] ] # just an update to make sure parsers support it
score = 4e-08 # to make sure leading zeroes in exponent parts of floats are supported
\ No newline at end of file
vendor/github.com/pelletier/go-toml/fuzz.go 0 → 100644
View file @ d7e13eb9
// +build gofuzz
package toml
func Fuzz(data []byte) int {
tree, err := LoadBytes(data)
if err != nil {
if tree != nil {
panic("tree must be nil if there is an error")
}
return 0
}
str, err := tree.ToTomlString()
if err != nil {
if str != "" {
panic(`str must be "" if there is an error`)
}
panic(err)
}
tree, err = Load(str)
if err != nil {
if tree != nil {
panic("tree must be nil if there is an error")
}
return 0
}
return 1
}
vendor/github.com/pelletier/go-toml/fuzz.sh 0 → 100644
View file @ d7e13eb9
#! /bin/sh
set -eu
go get github.com/dvyukov/go-fuzz/go-fuzz
go get github.com/dvyukov/go-fuzz/go-fuzz-build
if [ ! -e toml-fuzz.zip ]; then
go-fuzz-build github.com/pelletier/go-toml
fi
rm -fr fuzz
mkdir -p fuzz/corpus
cp *.toml fuzz/corpus
go-fuzz -bin=toml-fuzz.zip -workdir=fuzz
vendor/github.com/pelletier/go-toml/keysparsing.go 0 → 100644
View file @ d7e13eb9
// Parsing keys handling both bare and quoted keys.
package toml
import (
"errors"
"fmt"
)
// Convert the bare key group string to an array.
// The input supports double quotation and single quotation,
// but escape sequences are not supported. Lexers must unescape them beforehand.
func parseKey(key string) ([]string, error) {
runes := []rune(key)
var groups []string
if len(key) == 0 {
return nil, errors.New("empty key")
}
idx := 0
for idx < len(runes) {
for ; idx < len(runes) && isSpace(runes[idx]); idx++ {
// skip leading whitespace
}
if idx >= len(runes) {
break
}
r := runes[idx]
if isValidBareChar(r) {
// parse bare key
startIdx := idx
endIdx := -1
idx++
for idx < len(runes) {
r = runes[idx]
if isValidBareChar(r) {
idx++
} else if r == '.' {
endIdx = idx
break
} else if isSpace(r) {
endIdx = idx
for ; idx < len(runes) && isSpace(runes[idx]); idx++ {
// skip trailing whitespace
}
if idx < len(runes) && runes[idx] != '.' {
return nil, fmt.Errorf("invalid key character after whitespace: %c", runes[idx])
}
break
} else {
return nil, fmt.Errorf("invalid bare key character: %c", r)
}
}
if endIdx == -1 {
endIdx = idx
}
groups = append(groups, string(runes[startIdx:endIdx]))
} else if r == '\'' {
// parse single quoted key
idx++
startIdx := idx
for {
if idx >= len(runes) {
return nil, fmt.Errorf("unclosed single-quoted key")
}
r = runes[idx]
if r == '\'' {
groups = append(groups, string(runes[startIdx:idx]))
idx++
break
}
idx++
}
} else if r == '"' {
// parse double quoted key
idx++
startIdx := idx
for {
if idx >= len(runes) {
return nil, fmt.Errorf("unclosed double-quoted key")
}
r = runes[idx]
if r == '"' {
groups = append(groups, string(runes[startIdx:idx]))
idx++
break
}
idx++
}
} else if r == '.' {
idx++
if idx >= len(runes) {
return nil, fmt.Errorf("unexpected end of key")
}
r = runes[idx]
if !isValidBareChar(r) && r != '\'' && r != '"' && r != ' ' {
return nil, fmt.Errorf("expecting key part after dot")
}
} else {
return nil, fmt.Errorf("invalid key character: %c", r)
}
}
if len(groups) == 0 {
return nil, fmt.Errorf("empty key")
}
return groups, nil
}
func isValidBareChar(r rune) bool {
return isAlphanumeric(r) || r == '-' || isDigit(r)
}
vendor/github.com/pelletier/go-toml/lexer.go 0 → 100644
View file @ d7e13eb9
// TOML lexer.
//
// Written using the principles developed by Rob Pike in
// http://www.youtube.com/watch?v=HxaD_trXwRE
package toml
import (
"bytes"
"errors"
"fmt"
"strconv"
"strings"
)
// Define state functions
type tomlLexStateFn func() tomlLexStateFn
// Define lexer
type tomlLexer struct {
inputIdx int
input []rune // Textual source
currentTokenStart int
currentTokenStop int
tokens []token
brackets []rune
line int
col int
endbufferLine int
endbufferCol int
}
// Basic read operations on input
func (l *tomlLexer) read() rune {
r := l.peek()
if r == '\n' {
l.endbufferLine++
l.endbufferCol = 1
} else {
l.endbufferCol++
}
l.inputIdx++
return r
}
func (l *tomlLexer) next() rune {
r := l.read()
if r != eof {
l.currentTokenStop++
}
return r
}
func (l *tomlLexer) ignore() {
l.currentTokenStart = l.currentTokenStop
l.line = l.endbufferLine
l.col = l.endbufferCol
}
func (l *tomlLexer) skip() {
l.next()
l.ignore()
}
func (l *tomlLexer) fastForward(n int) {
for i := 0; i < n; i++ {
l.next()
}
}
func (l *tomlLexer) emitWithValue(t tokenType, value string) {
l.tokens = append(l.tokens, token{
Position: Position{l.line, l.col},
typ: t,
val: value,
})
l.ignore()
}
func (l *tomlLexer) emit(t tokenType) {
l.emitWithValue(t, string(l.input[l.currentTokenStart:l.currentTokenStop]))
}
func (l *tomlLexer) peek() rune {
if l.inputIdx >= len(l.input) {
return eof
}
return l.input[l.inputIdx]
}
func (l *tomlLexer) peekString(size int) string {
maxIdx := len(l.input)
upperIdx := l.inputIdx + size // FIXME: potential overflow
if upperIdx > maxIdx {
upperIdx = maxIdx
}
return string(l.input[l.inputIdx:upperIdx])
}
func (l *tomlLexer) follow(next string) bool {
return next == l.peekString(len(next))
}
// Error management
func (l *tomlLexer) errorf(format string, args ...interface{}) tomlLexStateFn {
l.tokens = append(l.tokens, token{
Position: Position{l.line, l.col},
typ: tokenError,
val: fmt.Sprintf(format, args...),
})
return nil
}
// State functions
func (l *tomlLexer) lexVoid() tomlLexStateFn {
for {
next := l.peek()
switch next {
case '}': // after '{'
return l.lexRightCurlyBrace
case '[':
return l.lexTableKey
case '#':
return l.lexComment(l.lexVoid)
case '=':
return l.lexEqual
case '\r':
fallthrough
case '\n':
l.skip()
continue
}
if isSpace(next) {
l.skip()
}
if isKeyStartChar(next) {
return l.lexKey
}
if next == eof {
l.next()
break
}
}
l.emit(tokenEOF)
return nil
}
func (l *tomlLexer) lexRvalue() tomlLexStateFn {
for {
next := l.peek()
switch next {
case '.':
return l.errorf("cannot start float with a dot")
case '=':
return l.lexEqual
case '[':
return l.lexLeftBracket
case ']':
return l.lexRightBracket
case '{':
return l.lexLeftCurlyBrace
case '}':
return l.lexRightCurlyBrace
case '#':
return l.lexComment(l.lexRvalue)
case '"':
return l.lexString
case '\'':
return l.lexLiteralString
case ',':
return l.lexComma
case '\r':
fallthrough
case '\n':
l.skip()
if len(l.brackets) > 0 && l.brackets[len(l.brackets)-1] == '[' {
return l.lexRvalue
}
return l.lexVoid
}
if l.follow("true") {
return l.lexTrue
}
if l.follow("false") {
return l.lexFalse
}
if l.follow("inf") {
return l.lexInf
}
if l.follow("nan") {
return l.lexNan
}
if isSpace(next) {
l.skip()
continue
}
if next == eof {
l.next()
break
}
if next == '+' || next == '-' {
return l.lexNumber
}
if isDigit(next) {
return l.lexDateTimeOrNumber
}
return l.errorf("no value can start with %c", next)
}
l.emit(tokenEOF)
return nil
}
func (l *tomlLexer) lexDateTimeOrNumber() tomlLexStateFn {
// Could be either a date/time, or a digit.
// The options for date/times are:
// YYYY-... => date or date-time
// HH:... => time
// Anything else should be a number.
lookAhead := l.peekString(5)
if len(lookAhead) < 3 {
return l.lexNumber()
}
for idx, r := range lookAhead {
if !isDigit(r) {
if idx == 2 && r == ':' {
return l.lexDateTimeOrTime()
}
if idx == 4 && r == '-' {
return l.lexDateTimeOrTime()
}
return l.lexNumber()
}
}
return l.lexNumber()
}
func (l *tomlLexer) lexLeftCurlyBrace() tomlLexStateFn {
l.next()
l.emit(tokenLeftCurlyBrace)
l.brackets = append(l.brackets, '{')
return l.lexVoid
}
func (l *tomlLexer) lexRightCurlyBrace() tomlLexStateFn {
l.next()
l.emit(tokenRightCurlyBrace)
if len(l.brackets) == 0 || l.brackets[len(l.brackets)-1] != '{' {
return l.errorf("cannot have '}' here")
}
l.brackets = l.brackets[:len(l.brackets)-1]
return l.lexRvalue
}
func (l *tomlLexer) lexDateTimeOrTime() tomlLexStateFn {
// Example matches:
// 1979-05-27T07:32:00Z
// 1979-05-27T00:32:00-07:00
// 1979-05-27T00:32:00.999999-07:00
// 1979-05-27 07:32:00Z
// 1979-05-27 00:32:00-07:00
// 1979-05-27 00:32:00.999999-07:00
// 1979-05-27T07:32:00
// 1979-05-27T00:32:00.999999
// 1979-05-27 07:32:00
// 1979-05-27 00:32:00.999999
// 1979-05-27
// 07:32:00
// 00:32:00.999999
// we already know those two are digits
l.next()
l.next()
// Got 2 digits. At that point it could be either a time or a date(-time).
r := l.next()
if r == ':' {
return l.lexTime()
}
return l.lexDateTime()
}
func (l *tomlLexer) lexDateTime() tomlLexStateFn {
// This state accepts an offset date-time, a local date-time, or a local date.
//
// v--- cursor
// 1979-05-27T07:32:00Z
// 1979-05-27T00:32:00-07:00
// 1979-05-27T00:32:00.999999-07:00
// 1979-05-27 07:32:00Z
// 1979-05-27 00:32:00-07:00
// 1979-05-27 00:32:00.999999-07:00
// 1979-05-27T07:32:00
// 1979-05-27T00:32:00.999999
// 1979-05-27 07:32:00
// 1979-05-27 00:32:00.999999
// 1979-05-27
// date
// already checked by lexRvalue
l.next() // digit
l.next() // -
for i := 0; i < 2; i++ {
r := l.next()
if !isDigit(r) {
return l.errorf("invalid month digit in date: %c", r)
}
}
r := l.next()
if r != '-' {
return l.errorf("expected - to separate month of a date, not %c", r)
}
for i := 0; i < 2; i++ {
r := l.next()
if !isDigit(r) {
return l.errorf("invalid day digit in date: %c", r)
}
}
l.emit(tokenLocalDate)
r = l.peek()
if r == eof {
return l.lexRvalue
}
if r != ' ' && r != 'T' {
return l.errorf("incorrect date/time separation character: %c", r)
}
if r == ' ' {
lookAhead := l.peekString(3)[1:]
if len(lookAhead) < 2 {
return l.lexRvalue
}
for _, r := range lookAhead {
if !isDigit(r) {
return l.lexRvalue
}
}
}
l.skip() // skip the T or ' '
// time
for i := 0; i < 2; i++ {
r := l.next()
if !isDigit(r) {
return l.errorf("invalid hour digit in time: %c", r)
}
}
r = l.next()
if r != ':' {
return l.errorf("time hour/minute separator should be :, not %c", r)
}
for i := 0; i < 2; i++ {
r := l.next()
if !isDigit(r) {
return l.errorf("invalid minute digit in time: %c", r)
}
}
r = l.next()
if r != ':' {
return l.errorf("time minute/second separator should be :, not %c", r)
}
for i := 0; i < 2; i++ {
r := l.next()
if !isDigit(r) {
return l.errorf("invalid second digit in time: %c", r)
}
}
r = l.peek()
if r == '.' {
l.next()
r := l.next()
if !isDigit(r) {
return l.errorf("expected at least one digit in time's fraction, not %c", r)
}
for {
r := l.peek()
if !isDigit(r) {
break
}
l.next()
}
}
l.emit(tokenLocalTime)
return l.lexTimeOffset
}
func (l *tomlLexer) lexTimeOffset() tomlLexStateFn {
// potential offset
// Z
// -07:00
// +07:00
// nothing
r := l.peek()
if r == 'Z' {
l.next()
l.emit(tokenTimeOffset)
} else if r == '+' || r == '-' {
l.next()
for i := 0; i < 2; i++ {
r := l.next()
if !isDigit(r) {
return l.errorf("invalid hour digit in time offset: %c", r)
}
}
r = l.next()
if r != ':' {
return l.errorf("time offset hour/minute separator should be :, not %c", r)
}
for i := 0; i < 2; i++ {
r := l.next()
if !isDigit(r) {
return l.errorf("invalid minute digit in time offset: %c", r)
}
}
l.emit(tokenTimeOffset)
}
return l.lexRvalue
}
func (l *tomlLexer) lexTime() tomlLexStateFn {
// v--- cursor
// 07:32:00
// 00:32:00.999999
for i := 0; i < 2; i++ {
r := l.next()
if !isDigit(r) {
return l.errorf("invalid minute digit in time: %c", r)
}
}
r := l.next()
if r != ':' {
return l.errorf("time minute/second separator should be :, not %c", r)
}
for i := 0; i < 2; i++ {
r := l.next()
if !isDigit(r) {
return l.errorf("invalid second digit in time: %c", r)
}
}
r = l.peek()
if r == '.' {
l.next()
r := l.next()
if !isDigit(r) {
return l.errorf("expected at least one digit in time's fraction, not %c", r)
}
for {
r := l.peek()
if !isDigit(r) {
break
}
l.next()
}
}
l.emit(tokenLocalTime)
return l.lexRvalue
}
func (l *tomlLexer) lexTrue() tomlLexStateFn {
l.fastForward(4)
l.emit(tokenTrue)
return l.lexRvalue
}
func (l *tomlLexer) lexFalse() tomlLexStateFn {
l.fastForward(5)
l.emit(tokenFalse)
return l.lexRvalue
}
func (l *tomlLexer) lexInf() tomlLexStateFn {
l.fastForward(3)
l.emit(tokenInf)
return l.lexRvalue
}
func (l *tomlLexer) lexNan() tomlLexStateFn {
l.fastForward(3)
l.emit(tokenNan)
return l.lexRvalue
}
func (l *tomlLexer) lexEqual() tomlLexStateFn {
l.next()
l.emit(tokenEqual)
return l.lexRvalue
}
func (l *tomlLexer) lexComma() tomlLexStateFn {
l.next()
l.emit(tokenComma)
if len(l.brackets) > 0 && l.brackets[len(l.brackets)-1] == '{' {
return l.lexVoid
}
return l.lexRvalue
}
// Parse the key and emits its value without escape sequences.
// bare keys, basic string keys and literal string keys are supported.
func (l *tomlLexer) lexKey() tomlLexStateFn {
var sb strings.Builder
for r := l.peek(); isKeyChar(r) || r == '\n' || r == '\r'; r = l.peek() {
if r == '"' {
l.next()
str, err := l.lexStringAsString(`"`, false, true)
if err != nil {
return l.errorf(err.Error())
}
sb.WriteString("\"")
sb.WriteString(str)
sb.WriteString("\"")
l.next()
continue
} else if r == '\'' {
l.next()
str, err := l.lexLiteralStringAsString(`'`, false)
if err != nil {
return l.errorf(err.Error())
}
sb.WriteString("'")
sb.WriteString(str)
sb.WriteString("'")
l.next()
continue
} else if r == '\n' {
return l.errorf("keys cannot contain new lines")
} else if isSpace(r) {
var str strings.Builder
str.WriteString(" ")
// skip trailing whitespace
l.next()
for r = l.peek(); isSpace(r); r = l.peek() {
str.WriteRune(r)
l.next()
}
// break loop if not a dot
if r != '.' {
break
}
str.WriteString(".")
// skip trailing whitespace after dot
l.next()
for r = l.peek(); isSpace(r); r = l.peek() {
str.WriteRune(r)
l.next()
}
sb.WriteString(str.String())
continue
} else if r == '.' {
// skip
} else if !isValidBareChar(r) {
return l.errorf("keys cannot contain %c character", r)
}
sb.WriteRune(r)
l.next()
}
l.emitWithValue(tokenKey, sb.String())
return l.lexVoid
}
func (l *tomlLexer) lexComment(previousState tomlLexStateFn) tomlLexStateFn {
return func() tomlLexStateFn {
for next := l.peek(); next != '\n' && next != eof; next = l.peek() {
if next == '\r' && l.follow("\r\n") {
break
}
l.next()
}
l.ignore()
return previousState
}
}
func (l *tomlLexer) lexLeftBracket() tomlLexStateFn {
l.next()
l.emit(tokenLeftBracket)
l.brackets = append(l.brackets, '[')
return l.lexRvalue
}
func (l *tomlLexer) lexLiteralStringAsString(terminator string, discardLeadingNewLine bool) (string, error) {
var sb strings.Builder
if discardLeadingNewLine {
if l.follow("\r\n") {
l.skip()
l.skip()
} else if l.peek() == '\n' {
l.skip()
}
}
// find end of string
for {
if l.follow(terminator) {
return sb.String(), nil
}
next := l.peek()
if next == eof {
break
}
sb.WriteRune(l.next())
}
return "", errors.New("unclosed string")
}
func (l *tomlLexer) lexLiteralString() tomlLexStateFn {
l.skip()
// handle special case for triple-quote
terminator := "'"
discardLeadingNewLine := false
if l.follow("''") {
l.skip()
l.skip()
terminator = "'''"
discardLeadingNewLine = true
}
str, err := l.lexLiteralStringAsString(terminator, discardLeadingNewLine)
if err != nil {
return l.errorf(err.Error())
}
l.emitWithValue(tokenString, str)
l.fastForward(len(terminator))
l.ignore()
return l.lexRvalue
}
// Lex a string and return the results as a string.
// Terminator is the substring indicating the end of the token.
// The resulting string does not include the terminator.
func (l *tomlLexer) lexStringAsString(terminator string, discardLeadingNewLine, acceptNewLines bool) (string, error) {
var sb strings.Builder
if discardLeadingNewLine {
if l.follow("\r\n") {
l.skip()
l.skip()
} else if l.peek() == '\n' {
l.skip()
}
}
for {
if l.follow(terminator) {
return sb.String(), nil
}
if l.follow("\\") {
l.next()
switch l.peek() {
case '\r':
fallthrough
case '\n':
fallthrough
case '\t':
fallthrough
case ' ':
// skip all whitespace chars following backslash
for strings.ContainsRune("\r\n\t ", l.peek()) {
l.next()
}
case '"':
sb.WriteString("\"")
l.next()
case 'n':
sb.WriteString("\n")
l.next()
case 'b':
sb.WriteString("\b")
l.next()
case 'f':
sb.WriteString("\f")
l.next()
case '/':
sb.WriteString("/")
l.next()
case 't':
sb.WriteString("\t")
l.next()
case 'r':
sb.WriteString("\r")
l.next()
case '\\':
sb.WriteString("\\")
l.next()
case 'u':
l.next()
var code strings.Builder
for i := 0; i < 4; i++ {
c := l.peek()
if !isHexDigit(c) {
return "", errors.New("unfinished unicode escape")
}
l.next()
code.WriteRune(c)
}
intcode, err := strconv.ParseInt(code.String(), 16, 32)
if err != nil {
return "", errors.New("invalid unicode escape: \\u" + code.String())
}
sb.WriteRune(rune(intcode))
case 'U':
l.next()
var code strings.Builder
for i := 0; i < 8; i++ {
c := l.peek()
if !isHexDigit(c) {
return "", errors.New("unfinished unicode escape")
}
l.next()
code.WriteRune(c)
}
intcode, err := strconv.ParseInt(code.String(), 16, 64)
if err != nil {
return "", errors.New("invalid unicode escape: \\U" + code.String())
}
sb.WriteRune(rune(intcode))
default:
return "", errors.New("invalid escape sequence: \\" + string(l.peek()))
}
} else {
r := l.peek()
if 0x00 <= r && r <= 0x1F && r != '\t' && !(acceptNewLines && (r == '\n' || r == '\r')) {
return "", fmt.Errorf("unescaped control character %U", r)
}
l.next()
sb.WriteRune(r)
}
if l.peek() == eof {
break
}
}
return "", errors.New("unclosed string")
}
func (l *tomlLexer) lexString() tomlLexStateFn {
l.skip()
// handle special case for triple-quote
terminator := `"`
discardLeadingNewLine := false
acceptNewLines := false
if l.follow(`""`) {
l.skip()
l.skip()
terminator = `"""`
discardLeadingNewLine = true
acceptNewLines = true
}
str, err := l.lexStringAsString(terminator, discardLeadingNewLine, acceptNewLines)
if err != nil {
return l.errorf(err.Error())
}
l.emitWithValue(tokenString, str)
l.fastForward(len(terminator))
l.ignore()
return l.lexRvalue
}
func (l *tomlLexer) lexTableKey() tomlLexStateFn {
l.next()
if l.peek() == '[' {
// token '[[' signifies an array of tables
l.next()
l.emit(tokenDoubleLeftBracket)
return l.lexInsideTableArrayKey
}
// vanilla table key
l.emit(tokenLeftBracket)
return l.lexInsideTableKey
}
// Parse the key till "]]", but only bare keys are supported
func (l *tomlLexer) lexInsideTableArrayKey() tomlLexStateFn {
for r := l.peek(); r != eof; r = l.peek() {
switch r {
case ']':
if l.currentTokenStop > l.currentTokenStart {
l.emit(tokenKeyGroupArray)
}
l.next()
if l.peek() != ']' {
break
}
l.next()
l.emit(tokenDoubleRightBracket)
return l.lexVoid
case '[':
return l.errorf("table array key cannot contain ']'")
default:
l.next()
}
}
return l.errorf("unclosed table array key")
}
// Parse the key till "]" but only bare keys are supported
func (l *tomlLexer) lexInsideTableKey() tomlLexStateFn {
for r := l.peek(); r != eof; r = l.peek() {
switch r {
case ']':
if l.currentTokenStop > l.currentTokenStart {
l.emit(tokenKeyGroup)
}
l.next()
l.emit(tokenRightBracket)
return l.lexVoid
case '[':
return l.errorf("table key cannot contain ']'")
default:
l.next()
}
}
return l.errorf("unclosed table key")
}
func (l *tomlLexer) lexRightBracket() tomlLexStateFn {
l.next()
l.emit(tokenRightBracket)
if len(l.brackets) == 0 || l.brackets[len(l.brackets)-1] != '[' {
return l.errorf("cannot have ']' here")
}
l.brackets = l.brackets[:len(l.brackets)-1]
return l.lexRvalue
}
type validRuneFn func(r rune) bool
func isValidHexRune(r rune) bool {
return r >= 'a' && r <= 'f' ||
r >= 'A' && r <= 'F' ||
r >= '0' && r <= '9' ||
r == '_'
}
func isValidOctalRune(r rune) bool {
return r >= '0' && r <= '7' || r == '_'
}
func isValidBinaryRune(r rune) bool {
return r == '0' || r == '1' || r == '_'
}
func (l *tomlLexer) lexNumber() tomlLexStateFn {
r := l.peek()
if r == '0' {
follow := l.peekString(2)
if len(follow) == 2 {
var isValidRune validRuneFn
switch follow[1] {
case 'x':
isValidRune = isValidHexRune
case 'o':
isValidRune = isValidOctalRune
case 'b':
isValidRune = isValidBinaryRune
default:
if follow[1] >= 'a' && follow[1] <= 'z' || follow[1] >= 'A' && follow[1] <= 'Z' {
return l.errorf("unknown number base: %s. possible options are x (hex) o (octal) b (binary)", string(follow[1]))
}
}
if isValidRune != nil {
l.next()
l.next()
digitSeen := false
for {
next := l.peek()
if !isValidRune(next) {
break
}
digitSeen = true
l.next()
}
if !digitSeen {
return l.errorf("number needs at least one digit")
}
l.emit(tokenInteger)
return l.lexRvalue
}
}
}
if r == '+' || r == '-' {
l.next()
if l.follow("inf") {
return l.lexInf
}
if l.follow("nan") {
return l.lexNan
}
}
pointSeen := false
expSeen := false
digitSeen := false
for {
next := l.peek()
if next == '.' {
if pointSeen {
return l.errorf("cannot have two dots in one float")
}
l.next()
if !isDigit(l.peek()) {
return l.errorf("float cannot end with a dot")
}
pointSeen = true
} else if next == 'e' || next == 'E' {
expSeen = true
l.next()
r := l.peek()
if r == '+' || r == '-' {
l.next()
}
} else if isDigit(next) {
digitSeen = true
l.next()
} else if next == '_' {
l.next()
} else {
break
}
if pointSeen && !digitSeen {
return l.errorf("cannot start float with a dot")
}
}
if !digitSeen {
return l.errorf("no digit in that number")
}
if pointSeen || expSeen {
l.emit(tokenFloat)
} else {
l.emit(tokenInteger)
}
return l.lexRvalue
}
func (l *tomlLexer) run() {
for state := l.lexVoid; state != nil; {
state = state()
}
}
// Entry point
func lexToml(inputBytes []byte) []token {
runes := bytes.Runes(inputBytes)
l := &tomlLexer{
input: runes,
tokens: make([]token, 0, 256),
line: 1,
col: 1,
endbufferLine: 1,
endbufferCol: 1,
}
l.run()
return l.tokens
}
vendor/github.com/pelletier/go-toml/localtime.go 0 → 100644
View file @ d7e13eb9
// Implementation of TOML's local date/time.
//
// Copied over from Google's civil to avoid pulling all the Google dependencies.
// Originals:
// https://raw.githubusercontent.com/googleapis/google-cloud-go/ed46f5086358513cf8c25f8e3f022cb838a49d66/civil/civil.go
// Changes:
// * Renamed files from civil* to localtime*.
// * Package changed from civil to toml.
// * 'Local' prefix added to all structs.
//
// Copyright 2016 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package civil implements types for civil time, a time-zone-independent
// representation of time that follows the rules of the proleptic
// Gregorian calendar with exactly 24-hour days, 60-minute hours, and 60-second
// minutes.
//
// Because they lack location information, these types do not represent unique
// moments or intervals of time. Use time.Time for that purpose.
package toml
import (
"fmt"
"time"
)
// A LocalDate represents a date (year, month, day).
//
// This type does not include location information, and therefore does not
// describe a unique 24-hour timespan.
type LocalDate struct {
Year int // Year (e.g., 2014).
Month time.Month // Month of the year (January = 1, ...).
Day int // Day of the month, starting at 1.
}
// LocalDateOf returns the LocalDate in which a time occurs in that time's location.
func LocalDateOf(t time.Time) LocalDate {
var d LocalDate
d.Year, d.Month, d.Day = t.Date()
return d
}
// ParseLocalDate parses a string in RFC3339 full-date format and returns the date value it represents.
func ParseLocalDate(s string) (LocalDate, error) {
t, err := time.Parse("2006-01-02", s)
if err != nil {
return LocalDate{}, err
}
return LocalDateOf(t), nil
}
// String returns the date in RFC3339 full-date format.
func (d LocalDate) String() string {
return fmt.Sprintf("%04d-%02d-%02d", d.Year, d.Month, d.Day)
}
// IsValid reports whether the date is valid.
func (d LocalDate) IsValid() bool {
return LocalDateOf(d.In(time.UTC)) == d
}
// In returns the time corresponding to time 00:00:00 of the date in the location.
//
// In is always consistent with time.LocalDate, even when time.LocalDate returns a time
// on a different day. For example, if loc is America/Indiana/Vincennes, then both
// time.LocalDate(1955, time.May, 1, 0, 0, 0, 0, loc)
// and
// civil.LocalDate{Year: 1955, Month: time.May, Day: 1}.In(loc)
// return 23:00:00 on April 30, 1955.
//
// In panics if loc is nil.
func (d LocalDate) In(loc *time.Location) time.Time {
return time.Date(d.Year, d.Month, d.Day, 0, 0, 0, 0, loc)
}
// AddDays returns the date that is n days in the future.
// n can also be negative to go into the past.
func (d LocalDate) AddDays(n int) LocalDate {
return LocalDateOf(d.In(time.UTC).AddDate(0, 0, n))
}
// DaysSince returns the signed number of days between the date and s, not including the end day.
// This is the inverse operation to AddDays.
func (d LocalDate) DaysSince(s LocalDate) (days int) {
// We convert to Unix time so we do not have to worry about leap seconds:
// Unix time increases by exactly 86400 seconds per day.
deltaUnix := d.In(time.UTC).Unix() - s.In(time.UTC).Unix()
return int(deltaUnix / 86400)
}
// Before reports whether d1 occurs before d2.
func (d1 LocalDate) Before(d2 LocalDate) bool {
if d1.Year != d2.Year {
return d1.Year < d2.Year
}
if d1.Month != d2.Month {
return d1.Month < d2.Month
}
return d1.Day < d2.Day
}
// After reports whether d1 occurs after d2.
func (d1 LocalDate) After(d2 LocalDate) bool {
return d2.Before(d1)
}
// MarshalText implements the encoding.TextMarshaler interface.
// The output is the result of d.String().
func (d LocalDate) MarshalText() ([]byte, error) {
return []byte(d.String()), nil
}
// UnmarshalText implements the encoding.TextUnmarshaler interface.
// The date is expected to be a string in a format accepted by ParseLocalDate.
func (d *LocalDate) UnmarshalText(data []byte) error {
var err error
*d, err = ParseLocalDate(string(data))
return err
}
// A LocalTime represents a time with nanosecond precision.
//
// This type does not include location information, and therefore does not
// describe a unique moment in time.
//
// This type exists to represent the TIME type in storage-based APIs like BigQuery.
// Most operations on Times are unlikely to be meaningful. Prefer the LocalDateTime type.
type LocalTime struct {
Hour int // The hour of the day in 24-hour format; range [0-23]
Minute int // The minute of the hour; range [0-59]
Second int // The second of the minute; range [0-59]
Nanosecond int // The nanosecond of the second; range [0-999999999]
}
// LocalTimeOf returns the LocalTime representing the time of day in which a time occurs
// in that time's location. It ignores the date.
func LocalTimeOf(t time.Time) LocalTime {
var tm LocalTime
tm.Hour, tm.Minute, tm.Second = t.Clock()
tm.Nanosecond = t.Nanosecond()
return tm
}
// ParseLocalTime parses a string and returns the time value it represents.
// ParseLocalTime accepts an extended form of the RFC3339 partial-time format. After
// the HH:MM:SS part of the string, an optional fractional part may appear,
// consisting of a decimal point followed by one to nine decimal digits.
// (RFC3339 admits only one digit after the decimal point).
func ParseLocalTime(s string) (LocalTime, error) {
t, err := time.Parse("15:04:05.999999999", s)
if err != nil {
return LocalTime{}, err
}
return LocalTimeOf(t), nil
}
// String returns the date in the format described in ParseLocalTime. If Nanoseconds
// is zero, no fractional part will be generated. Otherwise, the result will
// end with a fractional part consisting of a decimal point and nine digits.
func (t LocalTime) String() string {
s := fmt.Sprintf("%02d:%02d:%02d", t.Hour, t.Minute, t.Second)
if t.Nanosecond == 0 {
return s
}
return s + fmt.Sprintf(".%09d", t.Nanosecond)
}
// IsValid reports whether the time is valid.
func (t LocalTime) IsValid() bool {
// Construct a non-zero time.
tm := time.Date(2, 2, 2, t.Hour, t.Minute, t.Second, t.Nanosecond, time.UTC)
return LocalTimeOf(tm) == t
}
// MarshalText implements the encoding.TextMarshaler interface.
// The output is the result of t.String().
func (t LocalTime) MarshalText() ([]byte, error) {
return []byte(t.String()), nil
}
// UnmarshalText implements the encoding.TextUnmarshaler interface.
// The time is expected to be a string in a format accepted by ParseLocalTime.
func (t *LocalTime) UnmarshalText(data []byte) error {
var err error
*t, err = ParseLocalTime(string(data))
return err
}
// A LocalDateTime represents a date and time.
//
// This type does not include location information, and therefore does not
// describe a unique moment in time.
type LocalDateTime struct {
Date LocalDate
Time LocalTime
}
// Note: We deliberately do not embed LocalDate into LocalDateTime, to avoid promoting AddDays and Sub.
// LocalDateTimeOf returns the LocalDateTime in which a time occurs in that time's location.
func LocalDateTimeOf(t time.Time) LocalDateTime {
return LocalDateTime{
Date: LocalDateOf(t),
Time: LocalTimeOf(t),
}
}
// ParseLocalDateTime parses a string and returns the LocalDateTime it represents.
// ParseLocalDateTime accepts a variant of the RFC3339 date-time format that omits
// the time offset but includes an optional fractional time, as described in
// ParseLocalTime. Informally, the accepted format is
// YYYY-MM-DDTHH:MM:SS[.FFFFFFFFF]
// where the 'T' may be a lower-case 't'.
func ParseLocalDateTime(s string) (LocalDateTime, error) {
t, err := time.Parse("2006-01-02T15:04:05.999999999", s)
if err != nil {
t, err = time.Parse("2006-01-02t15:04:05.999999999", s)
if err != nil {
return LocalDateTime{}, err
}
}
return LocalDateTimeOf(t), nil
}
// String returns the date in the format described in ParseLocalDate.
func (dt LocalDateTime) String() string {
return dt.Date.String() + "T" + dt.Time.String()
}
// IsValid reports whether the datetime is valid.
func (dt LocalDateTime) IsValid() bool {
return dt.Date.IsValid() && dt.Time.IsValid()
}
// In returns the time corresponding to the LocalDateTime in the given location.
//
// If the time is missing or ambigous at the location, In returns the same
// result as time.LocalDate. For example, if loc is America/Indiana/Vincennes, then
// both
// time.LocalDate(1955, time.May, 1, 0, 30, 0, 0, loc)
// and
// civil.LocalDateTime{
// civil.LocalDate{Year: 1955, Month: time.May, Day: 1}},
// civil.LocalTime{Minute: 30}}.In(loc)
// return 23:30:00 on April 30, 1955.
//
// In panics if loc is nil.
func (dt LocalDateTime) In(loc *time.Location) time.Time {
return time.Date(dt.Date.Year, dt.Date.Month, dt.Date.Day, dt.Time.Hour, dt.Time.Minute, dt.Time.Second, dt.Time.Nanosecond, loc)
}
// Before reports whether dt1 occurs before dt2.
func (dt1 LocalDateTime) Before(dt2 LocalDateTime) bool {
return dt1.In(time.UTC).Before(dt2.In(time.UTC))
}
// After reports whether dt1 occurs after dt2.
func (dt1 LocalDateTime) After(dt2 LocalDateTime) bool {
return dt2.Before(dt1)
}
// MarshalText implements the encoding.TextMarshaler interface.
// The output is the result of dt.String().
func (dt LocalDateTime) MarshalText() ([]byte, error) {
return []byte(dt.String()), nil
}
// UnmarshalText implements the encoding.TextUnmarshaler interface.
// The datetime is expected to be a string in a format accepted by ParseLocalDateTime
func (dt *LocalDateTime) UnmarshalText(data []byte) error {
var err error
*dt, err = ParseLocalDateTime(string(data))
return err
}
vendor/github.com/pelletier/go-toml/marshal.go 0 → 100644
View file @ d7e13eb9
package toml
import (
"bytes"
"encoding"
"errors"
"fmt"
"io"
"reflect"
"sort"
"strconv"
"strings"
"time"
)
const (
tagFieldName = "toml"
tagFieldComment = "comment"
tagCommented = "commented"
tagMultiline = "multiline"
tagLiteral = "literal"
tagDefault = "default"
)
type tomlOpts struct {
name string
nameFromTag bool
comment string
commented bool
multiline bool
literal bool
include bool
omitempty bool
defaultValue string
}
type encOpts struct {
quoteMapKeys bool
arraysOneElementPerLine bool
}
var encOptsDefaults = encOpts{
quoteMapKeys: false,
}
type annotation struct {
tag string
comment string
commented string
multiline string
literal string
defaultValue string
}
var annotationDefault = annotation{
tag: tagFieldName,
comment: tagFieldComment,
commented: tagCommented,
multiline: tagMultiline,
literal: tagLiteral,
defaultValue: tagDefault,
}
type MarshalOrder int
// Orders the Encoder can write the fields to the output stream.
const (
// Sort fields alphabetically.
OrderAlphabetical MarshalOrder = iota + 1
// Preserve the order the fields are encountered. For example, the order of fields in
// a struct.
OrderPreserve
)
var timeType = reflect.TypeOf(time.Time{})
var marshalerType = reflect.TypeOf(new(Marshaler)).Elem()
var unmarshalerType = reflect.TypeOf(new(Unmarshaler)).Elem()
var textMarshalerType = reflect.TypeOf(new(encoding.TextMarshaler)).Elem()
var textUnmarshalerType = reflect.TypeOf(new(encoding.TextUnmarshaler)).Elem()
var localDateType = reflect.TypeOf(LocalDate{})
var localTimeType = reflect.TypeOf(LocalTime{})
var localDateTimeType = reflect.TypeOf(LocalDateTime{})
var mapStringInterfaceType = reflect.TypeOf(map[string]interface{}{})
// Check if the given marshal type maps to a Tree primitive
func isPrimitive(mtype reflect.Type) bool {
switch mtype.Kind() {
case reflect.Ptr:
return isPrimitive(mtype.Elem())
case reflect.Bool:
return true
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return true
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
return true
case reflect.Float32, reflect.Float64:
return true
case reflect.String:
return true
case reflect.Struct:
return isTimeType(mtype)
default:
return false
}
}
func isTimeType(mtype reflect.Type) bool {
return mtype == timeType || mtype == localDateType || mtype == localDateTimeType || mtype == localTimeType
}
// Check if the given marshal type maps to a Tree slice or array
func isTreeSequence(mtype reflect.Type) bool {
switch mtype.Kind() {
case reflect.Ptr:
return isTreeSequence(mtype.Elem())
case reflect.Slice, reflect.Array:
return isTree(mtype.Elem())
default:
return false
}
}
// Check if the given marshal type maps to a slice or array of a custom marshaler type
func isCustomMarshalerSequence(mtype reflect.Type) bool {
switch mtype.Kind() {
case reflect.Ptr:
return isCustomMarshalerSequence(mtype.Elem())
case reflect.Slice, reflect.Array:
return isCustomMarshaler(mtype.Elem()) || isCustomMarshaler(reflect.New(mtype.Elem()).Type())
default:
return false
}
}
// Check if the given marshal type maps to a slice or array of a text marshaler type
func isTextMarshalerSequence(mtype reflect.Type) bool {
switch mtype.Kind() {
case reflect.Ptr:
return isTextMarshalerSequence(mtype.Elem())
case reflect.Slice, reflect.Array:
return isTextMarshaler(mtype.Elem()) || isTextMarshaler(reflect.New(mtype.Elem()).Type())
default:
return false
}
}
// Check if the given marshal type maps to a non-Tree slice or array
func isOtherSequence(mtype reflect.Type) bool {
switch mtype.Kind() {
case reflect.Ptr:
return isOtherSequence(mtype.Elem())
case reflect.Slice, reflect.Array:
return !isTreeSequence(mtype)
default:
return false
}
}
// Check if the given marshal type maps to a Tree
func isTree(mtype reflect.Type) bool {
switch mtype.Kind() {
case reflect.Ptr:
return isTree(mtype.Elem())
case reflect.Map:
return true
case reflect.Struct:
return !isPrimitive(mtype)
default:
return false
}
}
func isCustomMarshaler(mtype reflect.Type) bool {
return mtype.Implements(marshalerType)
}
func callCustomMarshaler(mval reflect.Value) ([]byte, error) {
return mval.Interface().(Marshaler).MarshalTOML()
}
func isTextMarshaler(mtype reflect.Type) bool {
return mtype.Implements(textMarshalerType) && !isTimeType(mtype)
}
func callTextMarshaler(mval reflect.Value) ([]byte, error) {
return mval.Interface().(encoding.TextMarshaler).MarshalText()
}
func isCustomUnmarshaler(mtype reflect.Type) bool {
return mtype.Implements(unmarshalerType)
}
func callCustomUnmarshaler(mval reflect.Value, tval interface{}) error {
return mval.Interface().(Unmarshaler).UnmarshalTOML(tval)
}
func isTextUnmarshaler(mtype reflect.Type) bool {
return mtype.Implements(textUnmarshalerType)
}
func callTextUnmarshaler(mval reflect.Value, text []byte) error {
return mval.Interface().(encoding.TextUnmarshaler).UnmarshalText(text)
}
// Marshaler is the interface implemented by types that
// can marshal themselves into valid TOML.
type Marshaler interface {
MarshalTOML() ([]byte, error)
}
// Unmarshaler is the interface implemented by types that
// can unmarshal a TOML description of themselves.
type Unmarshaler interface {
UnmarshalTOML(interface{}) error
}
/*
Marshal returns the TOML encoding of v. Behavior is similar to the Go json
encoder, except that there is no concept of a Marshaler interface or MarshalTOML
function for sub-structs, and currently only definite types can be marshaled
(i.e. no `interface{}`).
The following struct annotations are supported:
toml:"Field" Overrides the field's name to output.
omitempty When set, empty values and groups are not emitted.
comment:"comment" Emits a # comment on the same line. This supports new lines.
commented:"true" Emits the value as commented.
Note that pointers are automatically assigned the "omitempty" option, as TOML
explicitly does not handle null values (saying instead the label should be
dropped).
Tree structural types and corresponding marshal types:
*Tree (*)struct, (*)map[string]interface{}
[]*Tree (*)[](*)struct, (*)[](*)map[string]interface{}
[]interface{} (as interface{}) (*)[]primitive, (*)[]([]interface{})
interface{} (*)primitive
Tree primitive types and corresponding marshal types:
uint64 uint, uint8-uint64, pointers to same
int64 int, int8-uint64, pointers to same
float64 float32, float64, pointers to same
string string, pointers to same
bool bool, pointers to same
time.LocalTime time.LocalTime{}, pointers to same
For additional flexibility, use the Encoder API.
*/
func Marshal(v interface{}) ([]byte, error) {
return NewEncoder(nil).marshal(v)
}
// Encoder writes TOML values to an output stream.
type Encoder struct {
w io.Writer
encOpts
annotation
line int
col int
order MarshalOrder
promoteAnon bool
compactComments bool
indentation string
}
// NewEncoder returns a new encoder that writes to w.
func NewEncoder(w io.Writer) *Encoder {
return &Encoder{
w: w,
encOpts: encOptsDefaults,
annotation: annotationDefault,
line: 0,
col: 1,
order: OrderAlphabetical,
indentation: " ",
}
}
// Encode writes the TOML encoding of v to the stream.
//
// See the documentation for Marshal for details.
func (e *Encoder) Encode(v interface{}) error {
b, err := e.marshal(v)
if err != nil {
return err
}
if _, err := e.w.Write(b); err != nil {
return err
}
return nil
}
// QuoteMapKeys sets up the encoder to encode
// maps with string type keys with quoted TOML keys.
//
// This relieves the character limitations on map keys.
func (e *Encoder) QuoteMapKeys(v bool) *Encoder {
e.quoteMapKeys = v
return e
}
// ArraysWithOneElementPerLine sets up the encoder to encode arrays
// with more than one element on multiple lines instead of one.
//
// For example:
//
// A = [1,2,3]
//
// Becomes
//
// A = [
// 1,
// 2,
// 3,
// ]
func (e *Encoder) ArraysWithOneElementPerLine(v bool) *Encoder {
e.arraysOneElementPerLine = v
return e
}
// Order allows to change in which order fields will be written to the output stream.
func (e *Encoder) Order(ord MarshalOrder) *Encoder {
e.order = ord
return e
}
// Indentation allows to change indentation when marshalling.
func (e *Encoder) Indentation(indent string) *Encoder {
e.indentation = indent
return e
}
// SetTagName allows changing default tag "toml"
func (e *Encoder) SetTagName(v string) *Encoder {
e.tag = v
return e
}
// SetTagComment allows changing default tag "comment"
func (e *Encoder) SetTagComment(v string) *Encoder {
e.comment = v
return e
}
// SetTagCommented allows changing default tag "commented"
func (e *Encoder) SetTagCommented(v string) *Encoder {
e.commented = v
return e
}
// SetTagMultiline allows changing default tag "multiline"
func (e *Encoder) SetTagMultiline(v string) *Encoder {
e.multiline = v
return e
}
// PromoteAnonymous allows to change how anonymous struct fields are marshaled.
// Usually, they are marshaled as if the inner exported fields were fields in
// the outer struct. However, if an anonymous struct field is given a name in
// its TOML tag, it is treated like a regular struct field with that name.
// rather than being anonymous.
//
// In case anonymous promotion is enabled, all anonymous structs are promoted
// and treated like regular struct fields.
func (e *Encoder) PromoteAnonymous(promote bool) *Encoder {
e.promoteAnon = promote
return e
}
// CompactComments removes the new line before each comment in the tree.
func (e *Encoder) CompactComments(cc bool) *Encoder {
e.compactComments = cc
return e
}
func (e *Encoder) marshal(v interface{}) ([]byte, error) {
// Check if indentation is valid
for _, char := range e.indentation {
if !isSpace(char) {
return []byte{}, fmt.Errorf("invalid indentation: must only contains space or tab characters")
}
}
mtype := reflect.TypeOf(v)
if mtype == nil {
return []byte{}, errors.New("nil cannot be marshaled to TOML")
}
switch mtype.Kind() {
case reflect.Struct, reflect.Map:
case reflect.Ptr:
if mtype.Elem().Kind() != reflect.Struct {
return []byte{}, errors.New("Only pointer to struct can be marshaled to TOML")
}
if reflect.ValueOf(v).IsNil() {
return []byte{}, errors.New("nil pointer cannot be marshaled to TOML")
}
default:
return []byte{}, errors.New("Only a struct or map can be marshaled to TOML")
}
sval := reflect.ValueOf(v)
if isCustomMarshaler(mtype) {
return callCustomMarshaler(sval)
}
if isTextMarshaler(mtype) {
return callTextMarshaler(sval)
}
t, err := e.valueToTree(mtype, sval)
if err != nil {
return []byte{}, err
}
var buf bytes.Buffer
_, err = t.writeToOrdered(&buf, "", "", 0, e.arraysOneElementPerLine, e.order, e.indentation, e.compactComments, false)
return buf.Bytes(), err
}
// Create next tree with a position based on Encoder.line
func (e *Encoder) nextTree() *Tree {
return newTreeWithPosition(Position{Line: e.line, Col: 1})
}
// Convert given marshal struct or map value to toml tree
func (e *Encoder) valueToTree(mtype reflect.Type, mval reflect.Value) (*Tree, error) {
if mtype.Kind() == reflect.Ptr {
return e.valueToTree(mtype.Elem(), mval.Elem())
}
tval := e.nextTree()
switch mtype.Kind() {
case reflect.Struct:
switch mval.Interface().(type) {
case Tree:
reflect.ValueOf(tval).Elem().Set(mval)
default:
for i := 0; i < mtype.NumField(); i++ {
mtypef, mvalf := mtype.Field(i), mval.Field(i)
opts := tomlOptions(mtypef, e.annotation)
if opts.include && ((mtypef.Type.Kind() != reflect.Interface && !opts.omitempty) || !isZero(mvalf)) {
val, err := e.valueToToml(mtypef.Type, mvalf)
if err != nil {
return nil, err
}
if tree, ok := val.(*Tree); ok && mtypef.Anonymous && !opts.nameFromTag && !e.promoteAnon {
e.appendTree(tval, tree)
} else {
val = e.wrapTomlValue(val, tval)
tval.SetPathWithOptions([]string{opts.name}, SetOptions{
Comment: opts.comment,
Commented: opts.commented,
Multiline: opts.multiline,
Literal: opts.literal,
}, val)
}
}
}
}
case reflect.Map:
keys := mval.MapKeys()
if e.order == OrderPreserve && len(keys) > 0 {
// Sorting []reflect.Value is not straight forward.
//
// OrderPreserve will support deterministic results when string is used
// as the key to maps.
typ := keys[0].Type()
kind := keys[0].Kind()
if kind == reflect.String {
ikeys := make([]string, len(keys))
for i := range keys {
ikeys[i] = keys[i].Interface().(string)
}
sort.Strings(ikeys)
for i := range ikeys {
keys[i] = reflect.ValueOf(ikeys[i]).Convert(typ)
}
}
}
for _, key := range keys {
mvalf := mval.MapIndex(key)
if (mtype.Elem().Kind() == reflect.Ptr || mtype.Elem().Kind() == reflect.Interface) && mvalf.IsNil() {
continue
}
val, err := e.valueToToml(mtype.Elem(), mvalf)
if err != nil {
return nil, err
}
val = e.wrapTomlValue(val, tval)
if e.quoteMapKeys {
keyStr, err := tomlValueStringRepresentation(key.String(), "", "", e.order, e.arraysOneElementPerLine)
if err != nil {
return nil, err
}
tval.SetPath([]string{keyStr}, val)
} else {
tval.SetPath([]string{key.String()}, val)
}
}
}
return tval, nil
}
// Convert given marshal slice to slice of Toml trees
func (e *Encoder) valueToTreeSlice(mtype reflect.Type, mval reflect.Value) ([]*Tree, error) {
tval := make([]*Tree, mval.Len(), mval.Len())
for i := 0; i < mval.Len(); i++ {
val, err := e.valueToTree(mtype.Elem(), mval.Index(i))
if err != nil {
return nil, err
}
tval[i] = val
}
return tval, nil
}
// Convert given marshal slice to slice of toml values
func (e *Encoder) valueToOtherSlice(mtype reflect.Type, mval reflect.Value) (interface{}, error) {
tval := make([]interface{}, mval.Len(), mval.Len())
for i := 0; i < mval.Len(); i++ {
val, err := e.valueToToml(mtype.Elem(), mval.Index(i))
if err != nil {
return nil, err
}
tval[i] = val
}
return tval, nil
}
// Convert given marshal value to toml value
func (e *Encoder) valueToToml(mtype reflect.Type, mval reflect.Value) (interface{}, error) {
if mtype.Kind() == reflect.Ptr {
switch {
case isCustomMarshaler(mtype):
return callCustomMarshaler(mval)
case isTextMarshaler(mtype):
b, err := callTextMarshaler(mval)
return string(b), err
default:
return e.valueToToml(mtype.Elem(), mval.Elem())
}
}
if mtype.Kind() == reflect.Interface {
return e.valueToToml(mval.Elem().Type(), mval.Elem())
}
switch {
case isCustomMarshaler(mtype):
return callCustomMarshaler(mval)
case isTextMarshaler(mtype):
b, err := callTextMarshaler(mval)
return string(b), err
case isTree(mtype):
return e.valueToTree(mtype, mval)
case isOtherSequence(mtype), isCustomMarshalerSequence(mtype), isTextMarshalerSequence(mtype):
return e.valueToOtherSlice(mtype, mval)
case isTreeSequence(mtype):
return e.valueToTreeSlice(mtype, mval)
default:
switch mtype.Kind() {
case reflect.Bool:
return mval.Bool(), nil
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
if mtype.Kind() == reflect.Int64 && mtype == reflect.TypeOf(time.Duration(1)) {
return fmt.Sprint(mval), nil
}
return mval.Int(), nil
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
return mval.Uint(), nil
case reflect.Float32, reflect.Float64:
return mval.Float(), nil
case reflect.String:
return mval.String(), nil
case reflect.Struct:
return mval.Interface(), nil
default:
return nil, fmt.Errorf("Marshal can't handle %v(%v)", mtype, mtype.Kind())
}
}
}
func (e *Encoder) appendTree(t, o *Tree) error {
for key, value := range o.values {
if _, ok := t.values[key]; ok {
continue
}
if tomlValue, ok := value.(*tomlValue); ok {
tomlValue.position.Col = t.position.Col
}
t.values[key] = value
}
return nil
}
// Create a toml value with the current line number as the position line
func (e *Encoder) wrapTomlValue(val interface{}, parent *Tree) interface{} {
_, isTree := val.(*Tree)
_, isTreeS := val.([]*Tree)
if isTree || isTreeS {
e.line++
return val
}
ret := &tomlValue{
value: val,
position: Position{
e.line,
parent.position.Col,
},
}
e.line++
return ret
}
// Unmarshal attempts to unmarshal the Tree into a Go struct pointed by v.
// Neither Unmarshaler interfaces nor UnmarshalTOML functions are supported for
// sub-structs, and only definite types can be unmarshaled.
func (t *Tree) Unmarshal(v interface{}) error {
d := Decoder{tval: t, tagName: tagFieldName}
return d.unmarshal(v)
}
// Marshal returns the TOML encoding of Tree.
// See Marshal() documentation for types mapping table.
func (t *Tree) Marshal() ([]byte, error) {
var buf bytes.Buffer
_, err := t.WriteTo(&buf)
if err != nil {
return nil, err
}
return buf.Bytes(), nil
}
// Unmarshal parses the TOML-encoded data and stores the result in the value
// pointed to by v. Behavior is similar to the Go json encoder, except that there
// is no concept of an Unmarshaler interface or UnmarshalTOML function for
// sub-structs, and currently only definite types can be unmarshaled to (i.e. no
// `interface{}`).
//
// The following struct annotations are supported:
//
// toml:"Field" Overrides the field's name to map to.
// default:"foo" Provides a default value.
//
// For default values, only fields of the following types are supported:
// * string
// * bool
// * int
// * int64
// * float64
//
// See Marshal() documentation for types mapping table.
func Unmarshal(data []byte, v interface{}) error {
t, err := LoadReader(bytes.NewReader(data))
if err != nil {
return err
}
return t.Unmarshal(v)
}
// Decoder reads and decodes TOML values from an input stream.
type Decoder struct {
r io.Reader
tval *Tree
encOpts
tagName string
strict bool
visitor visitorState
}
// NewDecoder returns a new decoder that reads from r.
func NewDecoder(r io.Reader) *Decoder {
return &Decoder{
r: r,
encOpts: encOptsDefaults,
tagName: tagFieldName,
}
}
// Decode reads a TOML-encoded value from it's input
// and unmarshals it in the value pointed at by v.
//
// See the documentation for Marshal for details.
func (d *Decoder) Decode(v interface{}) error {
var err error
d.tval, err = LoadReader(d.r)
if err != nil {
return err
}
return d.unmarshal(v)
}
// SetTagName allows changing default tag "toml"
func (d *Decoder) SetTagName(v string) *Decoder {
d.tagName = v
return d
}
// Strict allows changing to strict decoding. Any fields that are found in the
// input data and do not have a corresponding struct member cause an error.
func (d *Decoder) Strict(strict bool) *Decoder {
d.strict = strict
return d
}
func (d *Decoder) unmarshal(v interface{}) error {
mtype := reflect.TypeOf(v)
if mtype == nil {
return errors.New("nil cannot be unmarshaled from TOML")
}
if mtype.Kind() != reflect.Ptr {
return errors.New("only a pointer to struct or map can be unmarshaled from TOML")
}
elem := mtype.Elem()
switch elem.Kind() {
case reflect.Struct, reflect.Map:
case reflect.Interface:
elem = mapStringInterfaceType
default:
return errors.New("only a pointer to struct or map can be unmarshaled from TOML")
}
if reflect.ValueOf(v).IsNil() {
return errors.New("nil pointer cannot be unmarshaled from TOML")
}
vv := reflect.ValueOf(v).Elem()
if d.strict {
d.visitor = newVisitorState(d.tval)
}
sval, err := d.valueFromTree(elem, d.tval, &vv)
if err != nil {
return err
}
if err := d.visitor.validate(); err != nil {
return err
}
reflect.ValueOf(v).Elem().Set(sval)
return nil
}
// Convert toml tree to marshal struct or map, using marshal type. When mval1
// is non-nil, merge fields into the given value instead of allocating a new one.
func (d *Decoder) valueFromTree(mtype reflect.Type, tval *Tree, mval1 *reflect.Value) (reflect.Value, error) {
if mtype.Kind() == reflect.Ptr {
return d.unwrapPointer(mtype, tval, mval1)
}
// Check if pointer to value implements the Unmarshaler interface.
if mvalPtr := reflect.New(mtype); isCustomUnmarshaler(mvalPtr.Type()) {
d.visitor.visitAll()
if tval == nil {
return mvalPtr.Elem(), nil
}
if err := callCustomUnmarshaler(mvalPtr, tval.ToMap()); err != nil {
return reflect.ValueOf(nil), fmt.Errorf("unmarshal toml: %v", err)
}
return mvalPtr.Elem(), nil
}
var mval reflect.Value
switch mtype.Kind() {
case reflect.Struct:
if mval1 != nil {
mval = *mval1
} else {
mval = reflect.New(mtype).Elem()
}
switch mval.Interface().(type) {
case Tree:
mval.Set(reflect.ValueOf(tval).Elem())
default:
for i := 0; i < mtype.NumField(); i++ {
mtypef := mtype.Field(i)
an := annotation{tag: d.tagName}
opts := tomlOptions(mtypef, an)
if !opts.include {
continue
}
baseKey := opts.name
keysToTry := []string{
baseKey,
strings.ToLower(baseKey),
strings.ToTitle(baseKey),
strings.ToLower(string(baseKey[0])) + baseKey[1:],
}
found := false
if tval != nil {
for _, key := range keysToTry {
exists := tval.HasPath([]string{key})
if !exists {
continue
}
d.visitor.push(key)
val := tval.GetPath([]string{key})
fval := mval.Field(i)
mvalf, err := d.valueFromToml(mtypef.Type, val, &fval)
if err != nil {
return mval, formatError(err, tval.GetPositionPath([]string{key}))
}
mval.Field(i).Set(mvalf)
found = true
d.visitor.pop()
break
}
}
if !found && opts.defaultValue != "" {
mvalf := mval.Field(i)
var val interface{}
var err error
switch mvalf.Kind() {
case reflect.String:
val = opts.defaultValue
case reflect.Bool:
val, err = strconv.ParseBool(opts.defaultValue)
case reflect.Uint:
val, err = strconv.ParseUint(opts.defaultValue, 10, 0)
case reflect.Uint8:
val, err = strconv.ParseUint(opts.defaultValue, 10, 8)
case reflect.Uint16:
val, err = strconv.ParseUint(opts.defaultValue, 10, 16)
case reflect.Uint32:
val, err = strconv.ParseUint(opts.defaultValue, 10, 32)
case reflect.Uint64:
val, err = strconv.ParseUint(opts.defaultValue, 10, 64)
case reflect.Int:
val, err = strconv.ParseInt(opts.defaultValue, 10, 0)
case reflect.Int8:
val, err = strconv.ParseInt(opts.defaultValue, 10, 8)
case reflect.Int16:
val, err = strconv.ParseInt(opts.defaultValue, 10, 16)
case reflect.Int32:
val, err = strconv.ParseInt(opts.defaultValue, 10, 32)
case reflect.Int64:
// Check if the provided number has a non-numeric extension.
var hasExtension bool
if len(opts.defaultValue) > 0 {
lastChar := opts.defaultValue[len(opts.defaultValue)-1]
if lastChar < '0' || lastChar > '9' {
hasExtension = true
}
}
// If the value is a time.Duration with extension, parse as duration.
// If the value is an int64 or a time.Duration without extension, parse as number.
if hasExtension && mvalf.Type().String() == "time.Duration" {
val, err = time.ParseDuration(opts.defaultValue)
} else {
val, err = strconv.ParseInt(opts.defaultValue, 10, 64)
}
case reflect.Float32:
val, err = strconv.ParseFloat(opts.defaultValue, 32)
case reflect.Float64:
val, err = strconv.ParseFloat(opts.defaultValue, 64)
default:
return mvalf, fmt.Errorf("unsupported field type for default option")
}
if err != nil {
return mvalf, err
}
mvalf.Set(reflect.ValueOf(val).Convert(mvalf.Type()))
}
// save the old behavior above and try to check structs
if !found && opts.defaultValue == "" && mtypef.Type.Kind() == reflect.Struct {
tmpTval := tval
if !mtypef.Anonymous {
tmpTval = nil
}
fval := mval.Field(i)
v, err := d.valueFromTree(mtypef.Type, tmpTval, &fval)
if err != nil {
return v, err
}
mval.Field(i).Set(v)
}
}
}
case reflect.Map:
mval = reflect.MakeMap(mtype)
for _, key := range tval.Keys() {
d.visitor.push(key)
// TODO: path splits key
val := tval.GetPath([]string{key})
mvalf, err := d.valueFromToml(mtype.Elem(), val, nil)
if err != nil {
return mval, formatError(err, tval.GetPositionPath([]string{key}))
}
mval.SetMapIndex(reflect.ValueOf(key).Convert(mtype.Key()), mvalf)
d.visitor.pop()
}
}
return mval, nil
}
// Convert toml value to marshal struct/map slice, using marshal type
func (d *Decoder) valueFromTreeSlice(mtype reflect.Type, tval []*Tree) (reflect.Value, error) {
mval, err := makeSliceOrArray(mtype, len(tval))
if err != nil {
return mval, err
}
for i := 0; i < len(tval); i++ {
d.visitor.push(strconv.Itoa(i))
val, err := d.valueFromTree(mtype.Elem(), tval[i], nil)
if err != nil {
return mval, err
}
mval.Index(i).Set(val)
d.visitor.pop()
}
return mval, nil
}
// Convert toml value to marshal primitive slice, using marshal type
func (d *Decoder) valueFromOtherSlice(mtype reflect.Type, tval []interface{}) (reflect.Value, error) {
mval, err := makeSliceOrArray(mtype, len(tval))
if err != nil {
return mval, err
}
for i := 0; i < len(tval); i++ {
val, err := d.valueFromToml(mtype.Elem(), tval[i], nil)
if err != nil {
return mval, err
}
mval.Index(i).Set(val)
}
return mval, nil
}
// Convert toml value to marshal primitive slice, using marshal type
func (d *Decoder) valueFromOtherSliceI(mtype reflect.Type, tval interface{}) (reflect.Value, error) {
val := reflect.ValueOf(tval)
length := val.Len()
mval, err := makeSliceOrArray(mtype, length)
if err != nil {
return mval, err
}
for i := 0; i < length; i++ {
val, err := d.valueFromToml(mtype.Elem(), val.Index(i).Interface(), nil)
if err != nil {
return mval, err
}
mval.Index(i).Set(val)
}
return mval, nil
}
// Create a new slice or a new array with specified length
func makeSliceOrArray(mtype reflect.Type, tLength int) (reflect.Value, error) {
var mval reflect.Value
switch mtype.Kind() {
case reflect.Slice:
mval = reflect.MakeSlice(mtype, tLength, tLength)
case reflect.Array:
mval = reflect.New(reflect.ArrayOf(mtype.Len(), mtype.Elem())).Elem()
if tLength > mtype.Len() {
return mval, fmt.Errorf("unmarshal: TOML array length (%v) exceeds destination array length (%v)", tLength, mtype.Len())
}
}
return mval, nil
}
// Convert toml value to marshal value, using marshal type. When mval1 is non-nil
// and the given type is a struct value, merge fields into it.
func (d *Decoder) valueFromToml(mtype reflect.Type, tval interface{}, mval1 *reflect.Value) (reflect.Value, error) {
if mtype.Kind() == reflect.Ptr {
return d.unwrapPointer(mtype, tval, mval1)
}
switch t := tval.(type) {
case *Tree:
var mval11 *reflect.Value
if mtype.Kind() == reflect.Struct {
mval11 = mval1
}
if isTree(mtype) {
return d.valueFromTree(mtype, t, mval11)
}
if mtype.Kind() == reflect.Interface {
if mval1 == nil || mval1.IsNil() {
return d.valueFromTree(reflect.TypeOf(map[string]interface{}{}), t, nil)
} else {
return d.valueFromToml(mval1.Elem().Type(), t, nil)
}
}
return reflect.ValueOf(nil), fmt.Errorf("Can't convert %v(%T) to a tree", tval, tval)
case []*Tree:
if isTreeSequence(mtype) {
return d.valueFromTreeSlice(mtype, t)
}
if mtype.Kind() == reflect.Interface {
if mval1 == nil || mval1.IsNil() {
return d.valueFromTreeSlice(reflect.TypeOf([]map[string]interface{}{}), t)
} else {
ival := mval1.Elem()
return d.valueFromToml(mval1.Elem().Type(), t, &ival)
}
}
return reflect.ValueOf(nil), fmt.Errorf("Can't convert %v(%T) to trees", tval, tval)
case []interface{}:
d.visitor.visit()
if isOtherSequence(mtype) {
return d.valueFromOtherSlice(mtype, t)
}
if mtype.Kind() == reflect.Interface {
if mval1 == nil || mval1.IsNil() {
return d.valueFromOtherSlice(reflect.TypeOf([]interface{}{}), t)
} else {
ival := mval1.Elem()
return d.valueFromToml(mval1.Elem().Type(), t, &ival)
}
}
return reflect.ValueOf(nil), fmt.Errorf("Can't convert %v(%T) to a slice", tval, tval)
default:
d.visitor.visit()
mvalPtr := reflect.New(mtype)
// Check if pointer to value implements the Unmarshaler interface.
if isCustomUnmarshaler(mvalPtr.Type()) {
if err := callCustomUnmarshaler(mvalPtr, tval); err != nil {
return reflect.ValueOf(nil), fmt.Errorf("unmarshal toml: %v", err)
}
return mvalPtr.Elem(), nil
}
// Check if pointer to value implements the encoding.TextUnmarshaler.
if isTextUnmarshaler(mvalPtr.Type()) && !isTimeType(mtype) {
if err := d.unmarshalText(tval, mvalPtr); err != nil {
return reflect.ValueOf(nil), fmt.Errorf("unmarshal text: %v", err)
}
return mvalPtr.Elem(), nil
}
switch mtype.Kind() {
case reflect.Bool, reflect.Struct:
val := reflect.ValueOf(tval)
switch val.Type() {
case localDateType:
localDate := val.Interface().(LocalDate)
switch mtype {
case timeType:
return reflect.ValueOf(time.Date(localDate.Year, localDate.Month, localDate.Day, 0, 0, 0, 0, time.Local)), nil
}
case localDateTimeType:
localDateTime := val.Interface().(LocalDateTime)
switch mtype {
case timeType:
return reflect.ValueOf(time.Date(
localDateTime.Date.Year,
localDateTime.Date.Month,
localDateTime.Date.Day,
localDateTime.Time.Hour,
localDateTime.Time.Minute,
localDateTime.Time.Second,
localDateTime.Time.Nanosecond,
time.Local)), nil
}
}
// if this passes for when mtype is reflect.Struct, tval is a time.LocalTime
if !val.Type().ConvertibleTo(mtype) {
return reflect.ValueOf(nil), fmt.Errorf("Can't convert %v(%T) to %v", tval, tval, mtype.String())
}
return val.Convert(mtype), nil
case reflect.String:
val := reflect.ValueOf(tval)
// stupidly, int64 is convertible to string. So special case this.
if !val.Type().ConvertibleTo(mtype) || val.Kind() == reflect.Int64 {
return reflect.ValueOf(nil), fmt.Errorf("Can't convert %v(%T) to %v", tval, tval, mtype.String())
}
return val.Convert(mtype), nil
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
val := reflect.ValueOf(tval)
if mtype.Kind() == reflect.Int64 && mtype == reflect.TypeOf(time.Duration(1)) && val.Kind() == reflect.String {
d, err := time.ParseDuration(val.String())
if err != nil {
return reflect.ValueOf(nil), fmt.Errorf("Can't convert %v(%T) to %v. %s", tval, tval, mtype.String(), err)
}
return reflect.ValueOf(d), nil
}
if !val.Type().ConvertibleTo(mtype) || val.Kind() == reflect.Float64 {
return reflect.ValueOf(nil), fmt.Errorf("Can't convert %v(%T) to %v", tval, tval, mtype.String())
}
if reflect.Indirect(reflect.New(mtype)).OverflowInt(val.Convert(reflect.TypeOf(int64(0))).Int()) {
return reflect.ValueOf(nil), fmt.Errorf("%v(%T) would overflow %v", tval, tval, mtype.String())
}
return val.Convert(mtype), nil
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64, reflect.Uintptr:
val := reflect.ValueOf(tval)
if !val.Type().ConvertibleTo(mtype) || val.Kind() == reflect.Float64 {
return reflect.ValueOf(nil), fmt.Errorf("Can't convert %v(%T) to %v", tval, tval, mtype.String())
}
if val.Type().Kind() != reflect.Uint64 && val.Convert(reflect.TypeOf(int(1))).Int() < 0 {
return reflect.ValueOf(nil), fmt.Errorf("%v(%T) is negative so does not fit in %v", tval, tval, mtype.String())
}
if reflect.Indirect(reflect.New(mtype)).OverflowUint(val.Convert(reflect.TypeOf(uint64(0))).Uint()) {
return reflect.ValueOf(nil), fmt.Errorf("%v(%T) would overflow %v", tval, tval, mtype.String())
}
return val.Convert(mtype), nil
case reflect.Float32, reflect.Float64:
val := reflect.ValueOf(tval)
if !val.Type().ConvertibleTo(mtype) || val.Kind() == reflect.Int64 {
return reflect.ValueOf(nil), fmt.Errorf("Can't convert %v(%T) to %v", tval, tval, mtype.String())
}
if reflect.Indirect(reflect.New(mtype)).OverflowFloat(val.Convert(reflect.TypeOf(float64(0))).Float()) {
return reflect.ValueOf(nil), fmt.Errorf("%v(%T) would overflow %v", tval, tval, mtype.String())
}
return val.Convert(mtype), nil
case reflect.Interface:
if mval1 == nil || mval1.IsNil() {
return reflect.ValueOf(tval), nil
} else {
ival := mval1.Elem()
return d.valueFromToml(mval1.Elem().Type(), t, &ival)
}
case reflect.Slice, reflect.Array:
if isOtherSequence(mtype) && isOtherSequence(reflect.TypeOf(t)) {
return d.valueFromOtherSliceI(mtype, t)
}
return reflect.ValueOf(nil), fmt.Errorf("Can't convert %v(%T) to %v(%v)", tval, tval, mtype, mtype.Kind())
default:
return reflect.ValueOf(nil), fmt.Errorf("Can't convert %v(%T) to %v(%v)", tval, tval, mtype, mtype.Kind())
}
}
}
func (d *Decoder) unwrapPointer(mtype reflect.Type, tval interface{}, mval1 *reflect.Value) (reflect.Value, error) {
var melem *reflect.Value
if mval1 != nil && !mval1.IsNil() && (mtype.Elem().Kind() == reflect.Struct || mtype.Elem().Kind() == reflect.Interface) {
elem := mval1.Elem()
melem = &elem
}
val, err := d.valueFromToml(mtype.Elem(), tval, melem)
if err != nil {
return reflect.ValueOf(nil), err
}
mval := reflect.New(mtype.Elem())
mval.Elem().Set(val)
return mval, nil
}
func (d *Decoder) unmarshalText(tval interface{}, mval reflect.Value) error {
var buf bytes.Buffer
fmt.Fprint(&buf, tval)
return callTextUnmarshaler(mval, buf.Bytes())
}
func tomlOptions(vf reflect.StructField, an annotation) tomlOpts {
tag := vf.Tag.Get(an.tag)
parse := strings.Split(tag, ",")
var comment string
if c := vf.Tag.Get(an.comment); c != "" {
comment = c
}
commented, _ := strconv.ParseBool(vf.Tag.Get(an.commented))
multiline, _ := strconv.ParseBool(vf.Tag.Get(an.multiline))
literal, _ := strconv.ParseBool(vf.Tag.Get(an.literal))
defaultValue := vf.Tag.Get(tagDefault)
result := tomlOpts{
name: vf.Name,
nameFromTag: false,
comment: comment,
commented: commented,
multiline: multiline,
literal: literal,
include: true,
omitempty: false,
defaultValue: defaultValue,
}
if parse[0] != "" {
if parse[0] == "-" && len(parse) == 1 {
result.include = false
} else {
result.name = strings.Trim(parse[0], " ")
result.nameFromTag = true
}
}
if vf.PkgPath != "" {
result.include = false
}
if len(parse) > 1 && strings.Trim(parse[1], " ") == "omitempty" {
result.omitempty = true
}
if vf.Type.Kind() == reflect.Ptr {
result.omitempty = true
}
return result
}
func isZero(val reflect.Value) bool {
switch val.Type().Kind() {
case reflect.Slice, reflect.Array, reflect.Map:
return val.Len() == 0
default:
return reflect.DeepEqual(val.Interface(), reflect.Zero(val.Type()).Interface())
}
}
func formatError(err error, pos Position) error {
if err.Error()[0] == '(' { // Error already contains position information
return err
}
return fmt.Errorf("%s: %s", pos, err)
}
// visitorState keeps track of which keys were unmarshaled.
type visitorState struct {
tree *Tree
path []string
keys map[string]struct{}
active bool
}
func newVisitorState(tree *Tree) visitorState {
path, result := []string{}, map[string]struct{}{}
insertKeys(path, result, tree)
return visitorState{
tree: tree,
path: path[:0],
keys: result,
active: true,
}
}
func (s *visitorState) push(key string) {
if s.active {
s.path = append(s.path, key)
}
}
func (s *visitorState) pop() {
if s.active {
s.path = s.path[:len(s.path)-1]
}
}
func (s *visitorState) visit() {
if s.active {
delete(s.keys, strings.Join(s.path, "."))
}
}
func (s *visitorState) visitAll() {
if s.active {
for k := range s.keys {
if strings.HasPrefix(k, strings.Join(s.path, ".")) {
delete(s.keys, k)
}
}
}
}
func (s *visitorState) validate() error {
if !s.active {
return nil
}
undecoded := make([]string, 0, len(s.keys))
for key := range s.keys {
undecoded = append(undecoded, key)
}
sort.Strings(undecoded)
if len(undecoded) > 0 {
return fmt.Errorf("undecoded keys: %q", undecoded)
}
return nil
}
func insertKeys(path []string, m map[string]struct{}, tree *Tree) {
for k, v := range tree.values {
switch node := v.(type) {
case []*Tree:
for i, item := range node {
insertKeys(append(path, k, strconv.Itoa(i)), m, item)
}
case *Tree:
insertKeys(append(path, k), m, node)
case *tomlValue:
m[strings.Join(append(path, k), ".")] = struct{}{}
}
}
}
vendor/github.com/pelletier/go-toml/marshal_OrderPreserve_test.toml 0 → 100644
View file @ d7e13eb9
title = "TOML Marshal Testing"
[basic_lists]
floats = [12.3,45.6,78.9]
bools = [true,false,true]
dates = [1979-05-27T07:32:00Z,1980-05-27T07:32:00Z]
ints = [8001,8001,8002]
uints = [5002,5003]
strings = ["One","Two","Three"]
[[subdocptrs]]
name = "Second"
[basic_map]
one = "one"
two = "two"
[subdoc]
[subdoc.second]
name = "Second"
[subdoc.first]
name = "First"
[basic]
uint = 5001
bool = true
float = 123.4
float64 = 123.456782132399
int = 5000
string = "Bite me"
date = 1979-05-27T07:32:00Z
[[subdoclist]]
name = "List.First"
[[subdoclist]]
name = "List.Second"
vendor/github.com/pelletier/go-toml/marshal_test.toml 0 → 100644
View file @ d7e13eb9
title = "TOML Marshal Testing"
[basic]
bool = true
date = 1979-05-27T07:32:00Z
float = 123.4
float64 = 123.456782132399
int = 5000
string = "Bite me"
uint = 5001
[basic_lists]
bools = [true,false,true]
dates = [1979-05-27T07:32:00Z,1980-05-27T07:32:00Z]
floats = [12.3,45.6,78.9]
ints = [8001,8001,8002]
strings = ["One","Two","Three"]
uints = [5002,5003]
[basic_map]
one = "one"
two = "two"
[subdoc]
[subdoc.first]
name = "First"
[subdoc.second]
name = "Second"
[[subdoclist]]
name = "List.First"
[[subdoclist]]
name = "List.Second"
[[subdocptrs]]
name = "Second"
vendor/github.com/pelletier/go-toml/parser.go 0 → 100644
View file @ d7e13eb9
// TOML Parser.
package toml
import (
"errors"
"fmt"
"math"
"reflect"
"strconv"
"strings"
"time"
)
type tomlParser struct {
flowIdx int
flow []token
tree *Tree
currentTable []string
seenTableKeys []string
}
type tomlParserStateFn func() tomlParserStateFn
// Formats and panics an error message based on a token
func (p *tomlParser) raiseError(tok *token, msg string, args ...interface{}) {
panic(tok.Position.String() + ": " + fmt.Sprintf(msg, args...))
}
func (p *tomlParser) run() {
for state := p.parseStart; state != nil; {
state = state()
}
}
func (p *tomlParser) peek() *token {
if p.flowIdx >= len(p.flow) {
return nil
}
return &p.flow[p.flowIdx]
}
func (p *tomlParser) assume(typ tokenType) {
tok := p.getToken()
if tok == nil {
p.raiseError(tok, "was expecting token %s, but token stream is empty", tok)
}
if tok.typ != typ {
p.raiseError(tok, "was expecting token %s, but got %s instead", typ, tok)
}
}
func (p *tomlParser) getToken() *token {
tok := p.peek()
if tok == nil {
return nil
}
p.flowIdx++
return tok
}
func (p *tomlParser) parseStart() tomlParserStateFn {
tok := p.peek()
// end of stream, parsing is finished
if tok == nil {
return nil
}
switch tok.typ {
case tokenDoubleLeftBracket:
return p.parseGroupArray
case tokenLeftBracket:
return p.parseGroup
case tokenKey:
return p.parseAssign
case tokenEOF:
return nil
case tokenError:
p.raiseError(tok, "parsing error: %s", tok.String())
default:
p.raiseError(tok, "unexpected token %s", tok.typ)
}
return nil
}
func (p *tomlParser) parseGroupArray() tomlParserStateFn {
startToken := p.getToken() // discard the [[
key := p.getToken()
if key.typ != tokenKeyGroupArray {
p.raiseError(key, "unexpected token %s, was expecting a table array key", key)
}
// get or create table array element at the indicated part in the path
keys, err := parseKey(key.val)
if err != nil {
p.raiseError(key, "invalid table array key: %s", err)
}
p.tree.createSubTree(keys[:len(keys)-1], startToken.Position) // create parent entries
destTree := p.tree.GetPath(keys)
var array []*Tree
if destTree == nil {
array = make([]*Tree, 0)
} else if target, ok := destTree.([]*Tree); ok && target != nil {
array = destTree.([]*Tree)
} else {
p.raiseError(key, "key %s is already assigned and not of type table array", key)
}
p.currentTable = keys
// add a new tree to the end of the table array
newTree := newTree()
newTree.position = startToken.Position
array = append(array, newTree)
p.tree.SetPath(p.currentTable, array)
// remove all keys that were children of this table array
prefix := key.val + "."
found := false
for ii := 0; ii < len(p.seenTableKeys); {
tableKey := p.seenTableKeys[ii]
if strings.HasPrefix(tableKey, prefix) {
p.seenTableKeys = append(p.seenTableKeys[:ii], p.seenTableKeys[ii+1:]...)
} else {
found = (tableKey == key.val)
ii++
}
}
// keep this key name from use by other kinds of assignments
if !found {
p.seenTableKeys = append(p.seenTableKeys, key.val)
}
// move to next parser state
p.assume(tokenDoubleRightBracket)
return p.parseStart
}
func (p *tomlParser) parseGroup() tomlParserStateFn {
startToken := p.getToken() // discard the [
key := p.getToken()
if key.typ != tokenKeyGroup {
p.raiseError(key, "unexpected token %s, was expecting a table key", key)
}
for _, item := range p.seenTableKeys {
if item == key.val {
p.raiseError(key, "duplicated tables")
}
}
p.seenTableKeys = append(p.seenTableKeys, key.val)
keys, err := parseKey(key.val)
if err != nil {
p.raiseError(key, "invalid table array key: %s", err)
}
if err := p.tree.createSubTree(keys, startToken.Position); err != nil {
p.raiseError(key, "%s", err)
}
destTree := p.tree.GetPath(keys)
if target, ok := destTree.(*Tree); ok && target != nil && target.inline {
p.raiseError(key, "could not re-define exist inline table or its sub-table : %s",
strings.Join(keys, "."))
}
p.assume(tokenRightBracket)
p.currentTable = keys
return p.parseStart
}
func (p *tomlParser) parseAssign() tomlParserStateFn {
key := p.getToken()
p.assume(tokenEqual)
parsedKey, err := parseKey(key.val)
if err != nil {
p.raiseError(key, "invalid key: %s", err.Error())
}
value := p.parseRvalue()
var tableKey []string
if len(p.currentTable) > 0 {
tableKey = p.currentTable
} else {
tableKey = []string{}
}
prefixKey := parsedKey[0 : len(parsedKey)-1]
tableKey = append(tableKey, prefixKey...)
// find the table to assign, looking out for arrays of tables
var targetNode *Tree
switch node := p.tree.GetPath(tableKey).(type) {
case []*Tree:
targetNode = node[len(node)-1]
case *Tree:
targetNode = node
case nil:
// create intermediate
if err := p.tree.createSubTree(tableKey, key.Position); err != nil {
p.raiseError(key, "could not create intermediate group: %s", err)
}
targetNode = p.tree.GetPath(tableKey).(*Tree)
default:
p.raiseError(key, "Unknown table type for path: %s",
strings.Join(tableKey, "."))
}
if targetNode.inline {
p.raiseError(key, "could not add key or sub-table to exist inline table or its sub-table : %s",
strings.Join(tableKey, "."))
}
// assign value to the found table
keyVal := parsedKey[len(parsedKey)-1]
localKey := []string{keyVal}
finalKey := append(tableKey, keyVal)
if targetNode.GetPath(localKey) != nil {
p.raiseError(key, "The following key was defined twice: %s",
strings.Join(finalKey, "."))
}
var toInsert interface{}
switch value.(type) {
case *Tree, []*Tree:
toInsert = value
default:
toInsert = &tomlValue{value: value, position: key.Position}
}
targetNode.values[keyVal] = toInsert
return p.parseStart
}
var errInvalidUnderscore = errors.New("invalid use of _ in number")
func numberContainsInvalidUnderscore(value string) error {
// For large numbers, you may use underscores between digits to enhance
// readability. Each underscore must be surrounded by at least one digit on
// each side.
hasBefore := false
for idx, r := range value {
if r == '_' {
if !hasBefore || idx+1 >= len(value) {
// can't end with an underscore
return errInvalidUnderscore
}
}
hasBefore = isDigit(r)
}
return nil
}
var errInvalidUnderscoreHex = errors.New("invalid use of _ in hex number")
func hexNumberContainsInvalidUnderscore(value string) error {
hasBefore := false
for idx, r := range value {
if r == '_' {
if !hasBefore || idx+1 >= len(value) {
// can't end with an underscore
return errInvalidUnderscoreHex
}
}
hasBefore = isHexDigit(r)
}
return nil
}
func cleanupNumberToken(value string) string {
cleanedVal := strings.Replace(value, "_", "", -1)
return cleanedVal
}
func (p *tomlParser) parseRvalue() interface{} {
tok := p.getToken()
if tok == nil || tok.typ == tokenEOF {
p.raiseError(tok, "expecting a value")
}
switch tok.typ {
case tokenString:
return tok.val
case tokenTrue:
return true
case tokenFalse:
return false
case tokenInf:
if tok.val[0] == '-' {
return math.Inf(-1)
}
return math.Inf(1)
case tokenNan:
return math.NaN()
case tokenInteger:
cleanedVal := cleanupNumberToken(tok.val)
base := 10
s := cleanedVal
checkInvalidUnderscore := numberContainsInvalidUnderscore
if len(cleanedVal) >= 3 && cleanedVal[0] == '0' {
switch cleanedVal[1] {
case 'x':
checkInvalidUnderscore = hexNumberContainsInvalidUnderscore
base = 16
case 'o':
base = 8
case 'b':
base = 2
default:
panic("invalid base") // the lexer should catch this first
}
s = cleanedVal[2:]
}
err := checkInvalidUnderscore(tok.val)
if err != nil {
p.raiseError(tok, "%s", err)
}
var val interface{}
val, err = strconv.ParseInt(s, base, 64)
if err == nil {
return val
}
if s[0] != '-' {
if val, err = strconv.ParseUint(s, base, 64); err == nil {
return val
}
}
p.raiseError(tok, "%s", err)
case tokenFloat:
err := numberContainsInvalidUnderscore(tok.val)
if err != nil {
p.raiseError(tok, "%s", err)
}
cleanedVal := cleanupNumberToken(tok.val)
val, err := strconv.ParseFloat(cleanedVal, 64)
if err != nil {
p.raiseError(tok, "%s", err)
}
return val
case tokenLocalTime:
val, err := ParseLocalTime(tok.val)
if err != nil {
p.raiseError(tok, "%s", err)
}
return val
case tokenLocalDate:
// a local date may be followed by:
// * nothing: this is a local date
// * a local time: this is a local date-time
next := p.peek()
if next == nil || next.typ != tokenLocalTime {
val, err := ParseLocalDate(tok.val)
if err != nil {
p.raiseError(tok, "%s", err)
}
return val
}
localDate := tok
localTime := p.getToken()
next = p.peek()
if next == nil || next.typ != tokenTimeOffset {
v := localDate.val + "T" + localTime.val
val, err := ParseLocalDateTime(v)
if err != nil {
p.raiseError(tok, "%s", err)
}
return val
}
offset := p.getToken()
layout := time.RFC3339Nano
v := localDate.val + "T" + localTime.val + offset.val
val, err := time.ParseInLocation(layout, v, time.UTC)
if err != nil {
p.raiseError(tok, "%s", err)
}
return val
case tokenLeftBracket:
return p.parseArray()
case tokenLeftCurlyBrace:
return p.parseInlineTable()
case tokenEqual:
p.raiseError(tok, "cannot have multiple equals for the same key")
case tokenError:
p.raiseError(tok, "%s", tok)
default:
panic(fmt.Errorf("unhandled token: %v", tok))
}
return nil
}
func tokenIsComma(t *token) bool {
return t != nil && t.typ == tokenComma
}
func (p *tomlParser) parseInlineTable() *Tree {
tree := newTree()
var previous *token
Loop:
for {
follow := p.peek()
if follow == nil || follow.typ == tokenEOF {
p.raiseError(follow, "unterminated inline table")
}
switch follow.typ {
case tokenRightCurlyBrace:
p.getToken()
break Loop
case tokenKey, tokenInteger, tokenString:
if !tokenIsComma(previous) && previous != nil {
p.raiseError(follow, "comma expected between fields in inline table")
}
key := p.getToken()
p.assume(tokenEqual)
parsedKey, err := parseKey(key.val)
if err != nil {
p.raiseError(key, "invalid key: %s", err)
}
value := p.parseRvalue()
tree.SetPath(parsedKey, value)
case tokenComma:
if tokenIsComma(previous) {
p.raiseError(follow, "need field between two commas in inline table")
}
p.getToken()
default:
p.raiseError(follow, "unexpected token type in inline table: %s", follow.String())
}
previous = follow
}
if tokenIsComma(previous) {
p.raiseError(previous, "trailing comma at the end of inline table")
}
tree.inline = true
return tree
}
func (p *tomlParser) parseArray() interface{} {
var array []interface{}
arrayType := reflect.TypeOf(newTree())
for {
follow := p.peek()
if follow == nil || follow.typ == tokenEOF {
p.raiseError(follow, "unterminated array")
}
if follow.typ == tokenRightBracket {
p.getToken()
break
}
val := p.parseRvalue()
if reflect.TypeOf(val) != arrayType {
arrayType = nil
}
array = append(array, val)
follow = p.peek()
if follow == nil || follow.typ == tokenEOF {
p.raiseError(follow, "unterminated array")
}
if follow.typ != tokenRightBracket && follow.typ != tokenComma {
p.raiseError(follow, "missing comma")
}
if follow.typ == tokenComma {
p.getToken()
}
}
// if the array is a mixed-type array or its length is 0,
// don't convert it to a table array
if len(array) <= 0 {
arrayType = nil
}
// An array of Trees is actually an array of inline
// tables, which is a shorthand for a table array. If the
// array was not converted from []interface{} to []*Tree,
// the two notations would not be equivalent.
if arrayType == reflect.TypeOf(newTree()) {
tomlArray := make([]*Tree, len(array))
for i, v := range array {
tomlArray[i] = v.(*Tree)
}
return tomlArray
}
return array
}
func parseToml(flow []token) *Tree {
result := newTree()
result.position = Position{1, 1}
parser := &tomlParser{
flowIdx: 0,
flow: flow,
tree: result,
currentTable: make([]string, 0),
seenTableKeys: make([]string, 0),
}
parser.run()
return result
}
vendor/github.com/pelletier/go-toml/position.go 0 → 100644
View file @ d7e13eb9
// Position support for go-toml
package toml
import (
"fmt"
)
// Position of a document element within a TOML document.
//
// Line and Col are both 1-indexed positions for the element's line number and
// column number, respectively. Values of zero or less will cause Invalid(),
// to return true.
type Position struct {
Line int // line within the document
Col int // column within the line
}
// String representation of the position.
// Displays 1-indexed line and column numbers.
func (p Position) String() string {
return fmt.Sprintf("(%d, %d)", p.Line, p.Col)
}
// Invalid returns whether or not the position is valid (i.e. with negative or
// null values)
func (p Position) Invalid() bool {
return p.Line <= 0 || p.Col <= 0
}
vendor/github.com/pelletier/go-toml/token.go 0 → 100644
View file @ d7e13eb9
package toml
import "fmt"
// Define tokens
type tokenType int
const (
eof = -(iota + 1)
)
const (
tokenError tokenType = iota
tokenEOF
tokenComment
tokenKey
tokenString
tokenInteger
tokenTrue
tokenFalse
tokenFloat
tokenInf
tokenNan
tokenEqual
tokenLeftBracket
tokenRightBracket
tokenLeftCurlyBrace
tokenRightCurlyBrace
tokenLeftParen
tokenRightParen
tokenDoubleLeftBracket
tokenDoubleRightBracket
tokenLocalDate
tokenLocalTime
tokenTimeOffset
tokenKeyGroup
tokenKeyGroupArray
tokenComma
tokenColon
tokenDollar
tokenStar
tokenQuestion
tokenDot
tokenDotDot
tokenEOL
)
var tokenTypeNames = []string{
"Error",
"EOF",
"Comment",
"Key",
"String",
"Integer",
"True",
"False",
"Float",
"Inf",
"NaN",
"=",
"[",
"]",
"{",
"}",
"(",
")",
"]]",
"[[",
"LocalDate",
"LocalTime",
"TimeOffset",
"KeyGroup",
"KeyGroupArray",
",",
":",
"$",
"*",
"?",
".",
"..",
"EOL",
}
type token struct {
Position
typ tokenType
val string
}
func (tt tokenType) String() string {
idx := int(tt)
if idx < len(tokenTypeNames) {
return tokenTypeNames[idx]
}
return "Unknown"
}
func (t token) String() string {
switch t.typ {
case tokenEOF:
return "EOF"
case tokenError:
return t.val
}
return fmt.Sprintf("%q", t.val)
}
func isSpace(r rune) bool {
return r == ' ' || r == '\t'
}
func isAlphanumeric(r rune) bool {
return 'a' <= r && r <= 'z' || 'A' <= r && r <= 'Z' || r == '_'
}
func isKeyChar(r rune) bool {
// Keys start with the first character that isn't whitespace or [ and end
// with the last non-whitespace character before the equals sign. Keys
// cannot contain a # character."
return !(r == '\r' || r == '\n' || r == eof || r == '=')
}
func isKeyStartChar(r rune) bool {
return !(isSpace(r) || r == '\r' || r == '\n' || r == eof || r == '[')
}
func isDigit(r rune) bool {
return '0' <= r && r <= '9'
}
func isHexDigit(r rune) bool {
return isDigit(r) ||
(r >= 'a' && r <= 'f') ||
(r >= 'A' && r <= 'F')
}
vendor/github.com/pelletier/go-toml/toml.go 0 → 100644
View file @ d7e13eb9
package toml
import (
"errors"
"fmt"
"io"
"io/ioutil"
"os"
"runtime"
"strings"
)
type tomlValue struct {
value interface{} // string, int64, uint64, float64, bool, time.Time, [] of any of this list
comment string
commented bool
multiline bool
literal bool
position Position
}
// Tree is the result of the parsing of a TOML file.
type Tree struct {
values map[string]interface{} // string -> *tomlValue, *Tree, []*Tree
comment string
commented bool
inline bool
position Position
}
func newTree() *Tree {
return newTreeWithPosition(Position{})
}
func newTreeWithPosition(pos Position) *Tree {
return &Tree{
values: make(map[string]interface{}),
position: pos,
}
}
// TreeFromMap initializes a new Tree object using the given map.
func TreeFromMap(m map[string]interface{}) (*Tree, error) {
result, err := toTree(m)
if err != nil {
return nil, err
}
return result.(*Tree), nil
}
// Position returns the position of the tree.
func (t *Tree) Position() Position {
return t.position
}
// Has returns a boolean indicating if the given key exists.
func (t *Tree) Has(key string) bool {
if key == "" {
return false
}
return t.HasPath(strings.Split(key, "."))
}
// HasPath returns true if the given path of keys exists, false otherwise.
func (t *Tree) HasPath(keys []string) bool {
return t.GetPath(keys) != nil
}
// Keys returns the keys of the toplevel tree (does not recurse).
func (t *Tree) Keys() []string {
keys := make([]string, len(t.values))
i := 0
for k := range t.values {
keys[i] = k
i++
}
return keys
}
// Get the value at key in the Tree.
// Key is a dot-separated path (e.g. a.b.c) without single/double quoted strings.
// If you need to retrieve non-bare keys, use GetPath.
// Returns nil if the path does not exist in the tree.
// If keys is of length zero, the current tree is returned.
func (t *Tree) Get(key string) interface{} {
if key == "" {
return t
}
return t.GetPath(strings.Split(key, "."))
}
// GetPath returns the element in the tree indicated by 'keys'.
// If keys is of length zero, the current tree is returned.
func (t *Tree) GetPath(keys []string) interface{} {
if len(keys) == 0 {
return t
}
subtree := t
for _, intermediateKey := range keys[:len(keys)-1] {
value, exists := subtree.values[intermediateKey]
if !exists {
return nil
}
switch node := value.(type) {
case *Tree:
subtree = node
case []*Tree:
// go to most recent element
if len(node) == 0 {
return nil
}
subtree = node[len(node)-1]
default:
return nil // cannot navigate through other node types
}
}
// branch based on final node type
switch node := subtree.values[keys[len(keys)-1]].(type) {
case *tomlValue:
return node.value
default:
return node
}
}
// GetArray returns the value at key in the Tree.
// It returns []string, []int64, etc type if key has homogeneous lists
// Key is a dot-separated path (e.g. a.b.c) without single/double quoted strings.
// Returns nil if the path does not exist in the tree.
// If keys is of length zero, the current tree is returned.
func (t *Tree) GetArray(key string) interface{} {
if key == "" {
return t
}
return t.GetArrayPath(strings.Split(key, "."))
}
// GetArrayPath returns the element in the tree indicated by 'keys'.
// If keys is of length zero, the current tree is returned.
func (t *Tree) GetArrayPath(keys []string) interface{} {
if len(keys) == 0 {
return t
}
subtree := t
for _, intermediateKey := range keys[:len(keys)-1] {
value, exists := subtree.values[intermediateKey]
if !exists {
return nil
}
switch node := value.(type) {
case *Tree:
subtree = node
case []*Tree:
// go to most recent element
if len(node) == 0 {
return nil
}
subtree = node[len(node)-1]
default:
return nil // cannot navigate through other node types
}
}
// branch based on final node type
switch node := subtree.values[keys[len(keys)-1]].(type) {
case *tomlValue:
switch n := node.value.(type) {
case []interface{}:
return getArray(n)
default:
return node.value
}
default:
return node
}
}
// if homogeneous array, then return slice type object over []interface{}
func getArray(n []interface{}) interface{} {
var s []string
var i64 []int64
var f64 []float64
var bl []bool
for _, value := range n {
switch v := value.(type) {
case string:
s = append(s, v)
case int64:
i64 = append(i64, v)
case float64:
f64 = append(f64, v)
case bool:
bl = append(bl, v)
default:
return n
}
}
if len(s) == len(n) {
return s
} else if len(i64) == len(n) {
return i64
} else if len(f64) == len(n) {
return f64
} else if len(bl) == len(n) {
return bl
}
return n
}
// GetPosition returns the position of the given key.
func (t *Tree) GetPosition(key string) Position {
if key == "" {
return t.position
}
return t.GetPositionPath(strings.Split(key, "."))
}
// SetPositionPath sets the position of element in the tree indicated by 'keys'.
// If keys is of length zero, the current tree position is set.
func (t *Tree) SetPositionPath(keys []string, pos Position) {
if len(keys) == 0 {
t.position = pos
return
}
subtree := t
for _, intermediateKey := range keys[:len(keys)-1] {
value, exists := subtree.values[intermediateKey]
if !exists {
return
}
switch node := value.(type) {
case *Tree:
subtree = node
case []*Tree:
// go to most recent element
if len(node) == 0 {
return
}
subtree = node[len(node)-1]
default:
return
}
}
// branch based on final node type
switch node := subtree.values[keys[len(keys)-1]].(type) {
case *tomlValue:
node.position = pos
return
case *Tree:
node.position = pos
return
case []*Tree:
// go to most recent element
if len(node) == 0 {
return
}
node[len(node)-1].position = pos
return
}
}
// GetPositionPath returns the element in the tree indicated by 'keys'.
// If keys is of length zero, the current tree is returned.
func (t *Tree) GetPositionPath(keys []string) Position {
if len(keys) == 0 {
return t.position
}
subtree := t
for _, intermediateKey := range keys[:len(keys)-1] {
value, exists := subtree.values[intermediateKey]
if !exists {
return Position{0, 0}
}
switch node := value.(type) {
case *Tree:
subtree = node
case []*Tree:
// go to most recent element
if len(node) == 0 {
return Position{0, 0}
}
subtree = node[len(node)-1]
default:
return Position{0, 0}
}
}
// branch based on final node type
switch node := subtree.values[keys[len(keys)-1]].(type) {
case *tomlValue:
return node.position
case *Tree:
return node.position
case []*Tree:
// go to most recent element
if len(node) == 0 {
return Position{0, 0}
}
return node[len(node)-1].position
default:
return Position{0, 0}
}
}
// GetDefault works like Get but with a default value
func (t *Tree) GetDefault(key string, def interface{}) interface{} {
val := t.Get(key)
if val == nil {
return def
}
return val
}
// SetOptions arguments are supplied to the SetWithOptions and SetPathWithOptions functions to modify marshalling behaviour.
// The default values within the struct are valid default options.
type SetOptions struct {
Comment string
Commented bool
Multiline bool
Literal bool
}
// SetWithOptions is the same as Set, but allows you to provide formatting
// instructions to the key, that will be used by Marshal().
func (t *Tree) SetWithOptions(key string, opts SetOptions, value interface{}) {
t.SetPathWithOptions(strings.Split(key, "."), opts, value)
}
// SetPathWithOptions is the same as SetPath, but allows you to provide
// formatting instructions to the key, that will be reused by Marshal().
func (t *Tree) SetPathWithOptions(keys []string, opts SetOptions, value interface{}) {
subtree := t
for i, intermediateKey := range keys[:len(keys)-1] {
nextTree, exists := subtree.values[intermediateKey]
if !exists {
nextTree = newTreeWithPosition(Position{Line: t.position.Line + i, Col: t.position.Col})
subtree.values[intermediateKey] = nextTree // add new element here
}
switch node := nextTree.(type) {
case *Tree:
subtree = node
case []*Tree:
// go to most recent element
if len(node) == 0 {
// create element if it does not exist
node = append(node, newTreeWithPosition(Position{Line: t.position.Line + i, Col: t.position.Col}))
subtree.values[intermediateKey] = node
}
subtree = node[len(node)-1]
}
}
var toInsert interface{}
switch v := value.(type) {
case *Tree:
v.comment = opts.Comment
v.commented = opts.Commented
toInsert = value
case []*Tree:
for i := range v {
v[i].commented = opts.Commented
}
toInsert = value
case *tomlValue:
v.comment = opts.Comment
v.commented = opts.Commented
v.multiline = opts.Multiline
v.literal = opts.Literal
toInsert = v
default:
toInsert = &tomlValue{value: value,
comment: opts.Comment,
commented: opts.Commented,
multiline: opts.Multiline,
literal: opts.Literal,
position: Position{Line: subtree.position.Line + len(subtree.values) + 1, Col: subtree.position.Col}}
}
subtree.values[keys[len(keys)-1]] = toInsert
}
// Set an element in the tree.
// Key is a dot-separated path (e.g. a.b.c).
// Creates all necessary intermediate trees, if needed.
func (t *Tree) Set(key string, value interface{}) {
t.SetWithComment(key, "", false, value)
}
// SetWithComment is the same as Set, but allows you to provide comment
// information to the key, that will be reused by Marshal().
func (t *Tree) SetWithComment(key string, comment string, commented bool, value interface{}) {
t.SetPathWithComment(strings.Split(key, "."), comment, commented, value)
}
// SetPath sets an element in the tree.
// Keys is an array of path elements (e.g. {"a","b","c"}).
// Creates all necessary intermediate trees, if needed.
func (t *Tree) SetPath(keys []string, value interface{}) {
t.SetPathWithComment(keys, "", false, value)
}
// SetPathWithComment is the same as SetPath, but allows you to provide comment
// information to the key, that will be reused by Marshal().
func (t *Tree) SetPathWithComment(keys []string, comment string, commented bool, value interface{}) {
t.SetPathWithOptions(keys, SetOptions{Comment: comment, Commented: commented}, value)
}
// Delete removes a key from the tree.
// Key is a dot-separated path (e.g. a.b.c).
func (t *Tree) Delete(key string) error {
keys, err := parseKey(key)
if err != nil {
return err
}
return t.DeletePath(keys)
}
// DeletePath removes a key from the tree.
// Keys is an array of path elements (e.g. {"a","b","c"}).
func (t *Tree) DeletePath(keys []string) error {
keyLen := len(keys)
if keyLen == 1 {
delete(t.values, keys[0])
return nil
}
tree := t.GetPath(keys[:keyLen-1])
item := keys[keyLen-1]
switch node := tree.(type) {
case *Tree:
delete(node.values, item)
return nil
}
return errors.New("no such key to delete")
}
// createSubTree takes a tree and a key and create the necessary intermediate
// subtrees to create a subtree at that point. In-place.
//
// e.g. passing a.b.c will create (assuming tree is empty) tree[a], tree[a][b]
// and tree[a][b][c]
//
// Returns nil on success, error object on failure
func (t *Tree) createSubTree(keys []string, pos Position) error {
subtree := t
for i, intermediateKey := range keys {
nextTree, exists := subtree.values[intermediateKey]
if !exists {
tree := newTreeWithPosition(Position{Line: t.position.Line + i, Col: t.position.Col})
tree.position = pos
tree.inline = subtree.inline
subtree.values[intermediateKey] = tree
nextTree = tree
}
switch node := nextTree.(type) {
case []*Tree:
subtree = node[len(node)-1]
case *Tree:
subtree = node
default:
return fmt.Errorf("unknown type for path %s (%s): %T (%#v)",
strings.Join(keys, "."), intermediateKey, nextTree, nextTree)
}
}
return nil
}
// LoadBytes creates a Tree from a []byte.
func LoadBytes(b []byte) (tree *Tree, err error) {
defer func() {
if r := recover(); r != nil {
if _, ok := r.(runtime.Error); ok {
panic(r)
}
err = fmt.Errorf("%s", r)
}
}()
if len(b) >= 4 && (hasUTF32BigEndianBOM4(b) || hasUTF32LittleEndianBOM4(b)) {
b = b[4:]
} else if len(b) >= 3 && hasUTF8BOM3(b) {
b = b[3:]
} else if len(b) >= 2 && (hasUTF16BigEndianBOM2(b) || hasUTF16LittleEndianBOM2(b)) {
b = b[2:]
}
tree = parseToml(lexToml(b))
return
}
func hasUTF16BigEndianBOM2(b []byte) bool {
return b[0] == 0xFE && b[1] == 0xFF
}
func hasUTF16LittleEndianBOM2(b []byte) bool {
return b[0] == 0xFF && b[1] == 0xFE
}
func hasUTF8BOM3(b []byte) bool {
return b[0] == 0xEF && b[1] == 0xBB && b[2] == 0xBF
}
func hasUTF32BigEndianBOM4(b []byte) bool {
return b[0] == 0x00 && b[1] == 0x00 && b[2] == 0xFE && b[3] == 0xFF
}
func hasUTF32LittleEndianBOM4(b []byte) bool {
return b[0] == 0xFF && b[1] == 0xFE && b[2] == 0x00 && b[3] == 0x00
}
// LoadReader creates a Tree from any io.Reader.
func LoadReader(reader io.Reader) (tree *Tree, err error) {
inputBytes, err := ioutil.ReadAll(reader)
if err != nil {
return
}
tree, err = LoadBytes(inputBytes)
return
}
// Load creates a Tree from a string.
func Load(content string) (tree *Tree, err error) {
return LoadBytes([]byte(content))
}
// LoadFile creates a Tree from a file.
func LoadFile(path string) (tree *Tree, err error) {
file, err := os.Open(path)
if err != nil {
return nil, err
}
defer file.Close()
return LoadReader(file)
}
vendor/github.com/pelletier/go-toml/tomlpub.go 0 → 100644
View file @ d7e13eb9
package toml
// PubTOMLValue wrapping tomlValue in order to access all properties from outside.
type PubTOMLValue = tomlValue
func (ptv *PubTOMLValue) Value() interface{} {
return ptv.value
}
func (ptv *PubTOMLValue) Comment() string {
return ptv.comment
}
func (ptv *PubTOMLValue) Commented() bool {
return ptv.commented
}
func (ptv *PubTOMLValue) Multiline() bool {
return ptv.multiline
}
func (ptv *PubTOMLValue) Position() Position {
return ptv.position
}
func (ptv *PubTOMLValue) SetValue(v interface{}) {
ptv.value = v
}
func (ptv *PubTOMLValue) SetComment(s string) {
ptv.comment = s
}
func (ptv *PubTOMLValue) SetCommented(c bool) {
ptv.commented = c
}
func (ptv *PubTOMLValue) SetMultiline(m bool) {
ptv.multiline = m
}
func (ptv *PubTOMLValue) SetPosition(p Position) {
ptv.position = p
}
// PubTree wrapping Tree in order to access all properties from outside.
type PubTree = Tree
func (pt *PubTree) Values() map[string]interface{} {
return pt.values
}
func (pt *PubTree) Comment() string {
return pt.comment
}
func (pt *PubTree) Commented() bool {
return pt.commented
}
func (pt *PubTree) Inline() bool {
return pt.inline
}
func (pt *PubTree) SetValues(v map[string]interface{}) {
pt.values = v
}
func (pt *PubTree) SetComment(c string) {
pt.comment = c
}
func (pt *PubTree) SetCommented(c bool) {
pt.commented = c
}
func (pt *PubTree) SetInline(i bool) {
pt.inline = i
}
vendor/github.com/pelletier/go-toml/tomltree_create.go 0 → 100644
View file @ d7e13eb9
package toml
import (
"fmt"
"reflect"
"time"
)
var kindToType = [reflect.String + 1]reflect.Type{
reflect.Bool: reflect.TypeOf(true),
reflect.String: reflect.TypeOf(""),
reflect.Float32: reflect.TypeOf(float64(1)),
reflect.Float64: reflect.TypeOf(float64(1)),
reflect.Int: reflect.TypeOf(int64(1)),
reflect.Int8: reflect.TypeOf(int64(1)),
reflect.Int16: reflect.TypeOf(int64(1)),
reflect.Int32: reflect.TypeOf(int64(1)),
reflect.Int64: reflect.TypeOf(int64(1)),
reflect.Uint: reflect.TypeOf(uint64(1)),
reflect.Uint8: reflect.TypeOf(uint64(1)),
reflect.Uint16: reflect.TypeOf(uint64(1)),
reflect.Uint32: reflect.TypeOf(uint64(1)),
reflect.Uint64: reflect.TypeOf(uint64(1)),
}
// typeFor returns a reflect.Type for a reflect.Kind, or nil if none is found.
// supported values:
// string, bool, int64, uint64, float64, time.Time, int, int8, int16, int32, uint, uint8, uint16, uint32, float32
func typeFor(k reflect.Kind) reflect.Type {
if k > 0 && int(k) < len(kindToType) {
return kindToType[k]
}
return nil
}
func simpleValueCoercion(object interface{}) (interface{}, error) {
switch original := object.(type) {
case string, bool, int64, uint64, float64, time.Time:
return original, nil
case int:
return int64(original), nil
case int8:
return int64(original), nil
case int16:
return int64(original), nil
case int32:
return int64(original), nil
case uint:
return uint64(original), nil
case uint8:
return uint64(original), nil
case uint16:
return uint64(original), nil
case uint32:
return uint64(original), nil
case float32:
return float64(original), nil
case fmt.Stringer:
return original.String(), nil
case []interface{}:
value := reflect.ValueOf(original)
length := value.Len()
arrayValue := reflect.MakeSlice(value.Type(), 0, length)
for i := 0; i < length; i++ {
val := value.Index(i).Interface()
simpleValue, err := simpleValueCoercion(val)
if err != nil {
return nil, err
}
arrayValue = reflect.Append(arrayValue, reflect.ValueOf(simpleValue))
}
return arrayValue.Interface(), nil
default:
return nil, fmt.Errorf("cannot convert type %T to Tree", object)
}
}
func sliceToTree(object interface{}) (interface{}, error) {
// arrays are a bit tricky, since they can represent either a
// collection of simple values, which is represented by one
// *tomlValue, or an array of tables, which is represented by an
// array of *Tree.
// holding the assumption that this function is called from toTree only when value.Kind() is Array or Slice
value := reflect.ValueOf(object)
insideType := value.Type().Elem()
length := value.Len()
if length > 0 {
insideType = reflect.ValueOf(value.Index(0).Interface()).Type()
}
if insideType.Kind() == reflect.Map {
// this is considered as an array of tables
tablesArray := make([]*Tree, 0, length)
for i := 0; i < length; i++ {
table := value.Index(i)
tree, err := toTree(table.Interface())
if err != nil {
return nil, err
}
tablesArray = append(tablesArray, tree.(*Tree))
}
return tablesArray, nil
}
sliceType := typeFor(insideType.Kind())
if sliceType == nil {
sliceType = insideType
}
arrayValue := reflect.MakeSlice(reflect.SliceOf(sliceType), 0, length)
for i := 0; i < length; i++ {
val := value.Index(i).Interface()
simpleValue, err := simpleValueCoercion(val)
if err != nil {
return nil, err
}
arrayValue = reflect.Append(arrayValue, reflect.ValueOf(simpleValue))
}
return &tomlValue{value: arrayValue.Interface(), position: Position{}}, nil
}
func toTree(object interface{}) (interface{}, error) {
value := reflect.ValueOf(object)
if value.Kind() == reflect.Map {
values := map[string]interface{}{}
keys := value.MapKeys()
for _, key := range keys {
if key.Kind() != reflect.String {
if _, ok := key.Interface().(string); !ok {
return nil, fmt.Errorf("map key needs to be a string, not %T (%v)", key.Interface(), key.Kind())
}
}
v := value.MapIndex(key)
newValue, err := toTree(v.Interface())
if err != nil {
return nil, err
}
values[key.String()] = newValue
}
return &Tree{values: values, position: Position{}}, nil
}
if value.Kind() == reflect.Array || value.Kind() == reflect.Slice {
return sliceToTree(object)
}
simpleValue, err := simpleValueCoercion(object)
if err != nil {
return nil, err
}
return &tomlValue{value: simpleValue, position: Position{}}, nil
}
vendor/github.com/pelletier/go-toml/tomltree_write.go 0 → 100644
View file @ d7e13eb9
package toml
import (
"bytes"
"fmt"
"io"
"math"
"math/big"
"reflect"
"sort"
"strconv"
"strings"
"time"
)
type valueComplexity int
const (
valueSimple valueComplexity = iota + 1
valueComplex
)
type sortNode struct {
key string
complexity valueComplexity
}
// Encodes a string to a TOML-compliant multi-line string value
// This function is a clone of the existing encodeTomlString function, except that whitespace characters
// are preserved. Quotation marks and backslashes are also not escaped.
func encodeMultilineTomlString(value string, commented string) string {
var b bytes.Buffer
adjacentQuoteCount := 0
b.WriteString(commented)
for i, rr := range value {
if rr != '"' {
adjacentQuoteCount = 0
} else {
adjacentQuoteCount++
}
switch rr {
case '\b':
b.WriteString(`\b`)
case '\t':
b.WriteString("\t")
case '\n':
b.WriteString("\n" + commented)
case '\f':
b.WriteString(`\f`)
case '\r':
b.WriteString("\r")
case '"':
if adjacentQuoteCount >= 3 || i == len(value)-1 {
adjacentQuoteCount = 0
b.WriteString(`\"`)
} else {
b.WriteString(`"`)
}
case '\\':
b.WriteString(`\`)
default:
intRr := uint16(rr)
if intRr < 0x001F {
b.WriteString(fmt.Sprintf("\\u%0.4X", intRr))
} else {
b.WriteRune(rr)
}
}
}
return b.String()
}
// Encodes a string to a TOML-compliant string value
func encodeTomlString(value string) string {
var b bytes.Buffer
for _, rr := range value {
switch rr {
case '\b':
b.WriteString(`\b`)
case '\t':
b.WriteString(`\t`)
case '\n':
b.WriteString(`\n`)
case '\f':
b.WriteString(`\f`)
case '\r':
b.WriteString(`\r`)
case '"':
b.WriteString(`\"`)
case '\\':
b.WriteString(`\\`)
default:
intRr := uint16(rr)
if intRr < 0x001F {
b.WriteString(fmt.Sprintf("\\u%0.4X", intRr))
} else {
b.WriteRune(rr)
}
}
}
return b.String()
}
func tomlTreeStringRepresentation(t *Tree, ord MarshalOrder) (string, error) {
var orderedVals []sortNode
switch ord {
case OrderPreserve:
orderedVals = sortByLines(t)
default:
orderedVals = sortAlphabetical(t)
}
var values []string
for _, node := range orderedVals {
k := node.key
v := t.values[k]
repr, err := tomlValueStringRepresentation(v, "", "", ord, false)
if err != nil {
return "", err
}
values = append(values, quoteKeyIfNeeded(k)+" = "+repr)
}
return "{ " + strings.Join(values, ", ") + " }", nil
}
func tomlValueStringRepresentation(v interface{}, commented string, indent string, ord MarshalOrder, arraysOneElementPerLine bool) (string, error) {
// this interface check is added to dereference the change made in the writeTo function.
// That change was made to allow this function to see formatting options.
tv, ok := v.(*tomlValue)
if ok {
v = tv.value
} else {
tv = &tomlValue{}
}
switch value := v.(type) {
case uint64:
return strconv.FormatUint(value, 10), nil
case int64:
return strconv.FormatInt(value, 10), nil
case float64:
// Default bit length is full 64
bits := 64
// Float panics if nan is used
if !math.IsNaN(value) {
// if 32 bit accuracy is enough to exactly show, use 32
_, acc := big.NewFloat(value).Float32()
if acc == big.Exact {
bits = 32
}
}
if math.Trunc(value) == value {
return strings.ToLower(strconv.FormatFloat(value, 'f', 1, bits)), nil
}
return strings.ToLower(strconv.FormatFloat(value, 'f', -1, bits)), nil
case string:
if tv.multiline {
if tv.literal {
b := strings.Builder{}
b.WriteString("'''\n")
b.Write([]byte(value))
b.WriteString("\n'''")
return b.String(), nil
} else {
return "\"\"\"\n" + encodeMultilineTomlString(value, commented) + "\"\"\"", nil
}
}
return "\"" + encodeTomlString(value) + "\"", nil
case []byte:
b, _ := v.([]byte)
return string(b), nil
case bool:
if value {
return "true", nil
}
return "false", nil
case time.Time:
return value.Format(time.RFC3339), nil
case LocalDate:
return value.String(), nil
case LocalDateTime:
return value.String(), nil
case LocalTime:
return value.String(), nil
case *Tree:
return tomlTreeStringRepresentation(value, ord)
case nil:
return "", nil
}
rv := reflect.ValueOf(v)
if rv.Kind() == reflect.Slice {
var values []string
for i := 0; i < rv.Len(); i++ {
item := rv.Index(i).Interface()
itemRepr, err := tomlValueStringRepresentation(item, commented, indent, ord, arraysOneElementPerLine)
if err != nil {
return "", err
}
values = append(values, itemRepr)
}
if arraysOneElementPerLine && len(values) > 1 {
stringBuffer := bytes.Buffer{}
valueIndent := indent + ` ` // TODO: move that to a shared encoder state
stringBuffer.WriteString("[\n")
for _, value := range values {
stringBuffer.WriteString(valueIndent)
stringBuffer.WriteString(commented + value)
stringBuffer.WriteString(`,`)
stringBuffer.WriteString("\n")
}
stringBuffer.WriteString(indent + commented + "]")
return stringBuffer.String(), nil
}
return "[" + strings.Join(values, ", ") + "]", nil
}
return "", fmt.Errorf("unsupported value type %T: %v", v, v)
}
func getTreeArrayLine(trees []*Tree) (line int) {
// Prevent returning 0 for empty trees
line = int(^uint(0) >> 1)
// get lowest line number >= 0
for _, tv := range trees {
if tv.position.Line < line || line == 0 {
line = tv.position.Line
}
}
return
}
func sortByLines(t *Tree) (vals []sortNode) {
var (
line int
lines []int
tv *Tree
tom *tomlValue
node sortNode
)
vals = make([]sortNode, 0)
m := make(map[int]sortNode)
for k := range t.values {
v := t.values[k]
switch v.(type) {
case *Tree:
tv = v.(*Tree)
line = tv.position.Line
node = sortNode{key: k, complexity: valueComplex}
case []*Tree:
line = getTreeArrayLine(v.([]*Tree))
node = sortNode{key: k, complexity: valueComplex}
default:
tom = v.(*tomlValue)
line = tom.position.Line
node = sortNode{key: k, complexity: valueSimple}
}
lines = append(lines, line)
vals = append(vals, node)
m[line] = node
}
sort.Ints(lines)
for i, line := range lines {
vals[i] = m[line]
}
return vals
}
func sortAlphabetical(t *Tree) (vals []sortNode) {
var (
node sortNode
simpVals []string
compVals []string
)
vals = make([]sortNode, 0)
m := make(map[string]sortNode)
for k := range t.values {
v := t.values[k]
switch v.(type) {
case *Tree, []*Tree:
node = sortNode{key: k, complexity: valueComplex}
compVals = append(compVals, node.key)
default:
node = sortNode{key: k, complexity: valueSimple}
simpVals = append(simpVals, node.key)
}
vals = append(vals, node)
m[node.key] = node
}
// Simples first to match previous implementation
sort.Strings(simpVals)
i := 0
for _, key := range simpVals {
vals[i] = m[key]
i++
}
sort.Strings(compVals)
for _, key := range compVals {
vals[i] = m[key]
i++
}
return vals
}
func (t *Tree) writeTo(w io.Writer, indent, keyspace string, bytesCount int64, arraysOneElementPerLine bool) (int64, error) {
return t.writeToOrdered(w, indent, keyspace, bytesCount, arraysOneElementPerLine, OrderAlphabetical, " ", false, false)
}
func (t *Tree) writeToOrdered(w io.Writer, indent, keyspace string, bytesCount int64, arraysOneElementPerLine bool, ord MarshalOrder, indentString string, compactComments, parentCommented bool) (int64, error) {
var orderedVals []sortNode
switch ord {
case OrderPreserve:
orderedVals = sortByLines(t)
default:
orderedVals = sortAlphabetical(t)
}
for _, node := range orderedVals {
switch node.complexity {
case valueComplex:
k := node.key
v := t.values[k]
combinedKey := quoteKeyIfNeeded(k)
if keyspace != "" {
combinedKey = keyspace + "." + combinedKey
}
switch node := v.(type) {
// node has to be of those two types given how keys are sorted above
case *Tree:
tv, ok := t.values[k].(*Tree)
if !ok {
return bytesCount, fmt.Errorf("invalid value type at %s: %T", k, t.values[k])
}
if tv.comment != "" {
comment := strings.Replace(tv.comment, "\n", "\n"+indent+"#", -1)
start := "# "
if strings.HasPrefix(comment, "#") {
start = ""
}
writtenBytesCountComment, errc := writeStrings(w, "\n", indent, start, comment)
bytesCount += int64(writtenBytesCountComment)
if errc != nil {
return bytesCount, errc
}
}
var commented string
if parentCommented || t.commented || tv.commented {
commented = "# "
}
writtenBytesCount, err := writeStrings(w, "\n", indent, commented, "[", combinedKey, "]\n")
bytesCount += int64(writtenBytesCount)
if err != nil {
return bytesCount, err
}
bytesCount, err = node.writeToOrdered(w, indent+indentString, combinedKey, bytesCount, arraysOneElementPerLine, ord, indentString, compactComments, parentCommented || t.commented || tv.commented)
if err != nil {
return bytesCount, err
}
case []*Tree:
for _, subTree := range node {
var commented string
if parentCommented || t.commented || subTree.commented {
commented = "# "
}
writtenBytesCount, err := writeStrings(w, "\n", indent, commented, "[[", combinedKey, "]]\n")
bytesCount += int64(writtenBytesCount)
if err != nil {
return bytesCount, err
}
bytesCount, err = subTree.writeToOrdered(w, indent+indentString, combinedKey, bytesCount, arraysOneElementPerLine, ord, indentString, compactComments, parentCommented || t.commented || subTree.commented)
if err != nil {
return bytesCount, err
}
}
}
default: // Simple
k := node.key
v, ok := t.values[k].(*tomlValue)
if !ok {
return bytesCount, fmt.Errorf("invalid value type at %s: %T", k, t.values[k])
}
var commented string
if parentCommented || t.commented || v.commented {
commented = "# "
}
repr, err := tomlValueStringRepresentation(v, commented, indent, ord, arraysOneElementPerLine)
if err != nil {
return bytesCount, err
}
if v.comment != "" {
comment := strings.Replace(v.comment, "\n", "\n"+indent+"#", -1)
start := "# "
if strings.HasPrefix(comment, "#") {
start = ""
}
if !compactComments {
writtenBytesCountComment, errc := writeStrings(w, "\n")
bytesCount += int64(writtenBytesCountComment)
if errc != nil {
return bytesCount, errc
}
}
writtenBytesCountComment, errc := writeStrings(w, indent, start, comment, "\n")
bytesCount += int64(writtenBytesCountComment)
if errc != nil {
return bytesCount, errc
}
}
quotedKey := quoteKeyIfNeeded(k)
writtenBytesCount, err := writeStrings(w, indent, commented, quotedKey, " = ", repr, "\n")
bytesCount += int64(writtenBytesCount)
if err != nil {
return bytesCount, err
}
}
}
return bytesCount, nil
}
// quote a key if it does not fit the bare key format (A-Za-z0-9_-)
// quoted keys use the same rules as strings
func quoteKeyIfNeeded(k string) string {
// when encoding a map with the 'quoteMapKeys' option enabled, the tree will contain
// keys that have already been quoted.
// not an ideal situation, but good enough of a stop gap.
if len(k) >= 2 && k[0] == '"' && k[len(k)-1] == '"' {
return k
}
isBare := true
for _, r := range k {
if !isValidBareChar(r) {
isBare = false
break
}
}
if isBare {
return k
}
return quoteKey(k)
}
func quoteKey(k string) string {
return "\"" + encodeTomlString(k) + "\""
}
func writeStrings(w io.Writer, s ...string) (int, error) {
var n int
for i := range s {
b, err := io.WriteString(w, s[i])
n += b
if err != nil {
return n, err
}
}
return n, nil
}
// WriteTo encode the Tree as Toml and writes it to the writer w.
// Returns the number of bytes written in case of success, or an error if anything happened.
func (t *Tree) WriteTo(w io.Writer) (int64, error) {
return t.writeTo(w, "", "", 0, false)
}
// ToTomlString generates a human-readable representation of the current tree.
// Output spans multiple lines, and is suitable for ingest by a TOML parser.
// If the conversion cannot be performed, ToString returns a non-nil error.
func (t *Tree) ToTomlString() (string, error) {
b, err := t.Marshal()
if err != nil {
return "", err
}
return string(b), nil
}
// String generates a human-readable representation of the current tree.
// Alias of ToString. Present to implement the fmt.Stringer interface.
func (t *Tree) String() string {
result, _ := t.ToTomlString()
return result
}
// ToMap recursively generates a representation of the tree using Go built-in structures.
// The following types are used:
//
// * bool
// * float64
// * int64
// * string
// * uint64
// * time.Time
// * map[string]interface{} (where interface{} is any of this list)
// * []interface{} (where interface{} is any of this list)
func (t *Tree) ToMap() map[string]interface{} {
result := map[string]interface{}{}
for k, v := range t.values {
switch node := v.(type) {
case []*Tree:
var array []interface{}
for _, item := range node {
array = append(array, item.ToMap())
}
result[k] = array
case *Tree:
result[k] = node.ToMap()
case *tomlValue:
result[k] = tomlValueToGo(node.value)
}
}
return result
}
func tomlValueToGo(v interface{}) interface{} {
if tree, ok := v.(*Tree); ok {
return tree.ToMap()
}
rv := reflect.ValueOf(v)
if rv.Kind() != reflect.Slice {
return v
}
values := make([]interface{}, rv.Len())
for i := 0; i < rv.Len(); i++ {
item := rv.Index(i).Interface()
values[i] = tomlValueToGo(item)
}
return values
}
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