mirror of
https://github.com/go-gitea/gitea.git
synced 2025-10-29 10:57:44 +09:00
Use vendored go-swagger (#8087)
* Use vendored go-swagger * vendor go-swagger * revert un wanteed change * remove un-needed GO111MODULE * Update Makefile Co-Authored-By: techknowlogick <matti@mdranta.net>
This commit is contained in:
Antoine GIRARD
committed by
Lauris BH
Lauris BH
parent
4cb1bdddc8
commit
9fe4437bda
407
vendor/github.com/magiconair/properties/lex.go
generated
vendored
Normal file
407
vendor/github.com/magiconair/properties/lex.go
generated
vendored
Normal file
@@ -0,0 +1,407 @@
|
||||
// Copyright 2018 Frank Schroeder. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
//
|
||||
// Parts of the lexer are from the template/text/parser package
|
||||
// For these parts the following applies:
|
||||
//
|
||||
// Copyright 2011 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file of the go 1.2
|
||||
// distribution.
|
||||
|
||||
package properties
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"strconv"
|
||||
"strings"
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
// item represents a token or text string returned from the scanner.
|
||||
type item struct {
|
||||
typ itemType // The type of this item.
|
||||
pos int // The starting position, in bytes, of this item in the input string.
|
||||
val string // The value of this item.
|
||||
}
|
||||
|
||||
func (i item) String() string {
|
||||
switch {
|
||||
case i.typ == itemEOF:
|
||||
return "EOF"
|
||||
case i.typ == itemError:
|
||||
return i.val
|
||||
case len(i.val) > 10:
|
||||
return fmt.Sprintf("%.10q...", i.val)
|
||||
}
|
||||
return fmt.Sprintf("%q", i.val)
|
||||
}
|
||||
|
||||
// itemType identifies the type of lex items.
|
||||
type itemType int
|
||||
|
||||
const (
|
||||
itemError itemType = iota // error occurred; value is text of error
|
||||
itemEOF
|
||||
itemKey // a key
|
||||
itemValue // a value
|
||||
itemComment // a comment
|
||||
)
|
||||
|
||||
// defines a constant for EOF
|
||||
const eof = -1
|
||||
|
||||
// permitted whitespace characters space, FF and TAB
|
||||
const whitespace = " \f\t"
|
||||
|
||||
// stateFn represents the state of the scanner as a function that returns the next state.
|
||||
type stateFn func(*lexer) stateFn
|
||||
|
||||
// lexer holds the state of the scanner.
|
||||
type lexer struct {
|
||||
input string // the string being scanned
|
||||
state stateFn // the next lexing function to enter
|
||||
pos int // current position in the input
|
||||
start int // start position of this item
|
||||
width int // width of last rune read from input
|
||||
lastPos int // position of most recent item returned by nextItem
|
||||
runes []rune // scanned runes for this item
|
||||
items chan item // channel of scanned items
|
||||
}
|
||||
|
||||
// next returns the next rune in the input.
|
||||
func (l *lexer) next() rune {
|
||||
if l.pos >= len(l.input) {
|
||||
l.width = 0
|
||||
return eof
|
||||
}
|
||||
r, w := utf8.DecodeRuneInString(l.input[l.pos:])
|
||||
l.width = w
|
||||
l.pos += l.width
|
||||
return r
|
||||
}
|
||||
|
||||
// peek returns but does not consume the next rune in the input.
|
||||
func (l *lexer) peek() rune {
|
||||
r := l.next()
|
||||
l.backup()
|
||||
return r
|
||||
}
|
||||
|
||||
// backup steps back one rune. Can only be called once per call of next.
|
||||
func (l *lexer) backup() {
|
||||
l.pos -= l.width
|
||||
}
|
||||
|
||||
// emit passes an item back to the client.
|
||||
func (l *lexer) emit(t itemType) {
|
||||
i := item{t, l.start, string(l.runes)}
|
||||
l.items <- i
|
||||
l.start = l.pos
|
||||
l.runes = l.runes[:0]
|
||||
}
|
||||
|
||||
// ignore skips over the pending input before this point.
|
||||
func (l *lexer) ignore() {
|
||||
l.start = l.pos
|
||||
}
|
||||
|
||||
// appends the rune to the current value
|
||||
func (l *lexer) appendRune(r rune) {
|
||||
l.runes = append(l.runes, r)
|
||||
}
|
||||
|
||||
// accept consumes the next rune if it's from the valid set.
|
||||
func (l *lexer) accept(valid string) bool {
|
||||
if strings.ContainsRune(valid, l.next()) {
|
||||
return true
|
||||
}
|
||||
l.backup()
|
||||
return false
|
||||
}
|
||||
|
||||
// acceptRun consumes a run of runes from the valid set.
|
||||
func (l *lexer) acceptRun(valid string) {
|
||||
for strings.ContainsRune(valid, l.next()) {
|
||||
}
|
||||
l.backup()
|
||||
}
|
||||
|
||||
// acceptRunUntil consumes a run of runes up to a terminator.
|
||||
func (l *lexer) acceptRunUntil(term rune) {
|
||||
for term != l.next() {
|
||||
}
|
||||
l.backup()
|
||||
}
|
||||
|
||||
// hasText returns true if the current parsed text is not empty.
|
||||
func (l *lexer) isNotEmpty() bool {
|
||||
return l.pos > l.start
|
||||
}
|
||||
|
||||
// lineNumber reports which line we're on, based on the position of
|
||||
// the previous item returned by nextItem. Doing it this way
|
||||
// means we don't have to worry about peek double counting.
|
||||
func (l *lexer) lineNumber() int {
|
||||
return 1 + strings.Count(l.input[:l.lastPos], "\n")
|
||||
}
|
||||
|
||||
// errorf returns an error token and terminates the scan by passing
|
||||
// back a nil pointer that will be the next state, terminating l.nextItem.
|
||||
func (l *lexer) errorf(format string, args ...interface{}) stateFn {
|
||||
l.items <- item{itemError, l.start, fmt.Sprintf(format, args...)}
|
||||
return nil
|
||||
}
|
||||
|
||||
// nextItem returns the next item from the input.
|
||||
func (l *lexer) nextItem() item {
|
||||
i := <-l.items
|
||||
l.lastPos = i.pos
|
||||
return i
|
||||
}
|
||||
|
||||
// lex creates a new scanner for the input string.
|
||||
func lex(input string) *lexer {
|
||||
l := &lexer{
|
||||
input: input,
|
||||
items: make(chan item),
|
||||
runes: make([]rune, 0, 32),
|
||||
}
|
||||
go l.run()
|
||||
return l
|
||||
}
|
||||
|
||||
// run runs the state machine for the lexer.
|
||||
func (l *lexer) run() {
|
||||
for l.state = lexBeforeKey(l); l.state != nil; {
|
||||
l.state = l.state(l)
|
||||
}
|
||||
}
|
||||
|
||||
// state functions
|
||||
|
||||
// lexBeforeKey scans until a key begins.
|
||||
func lexBeforeKey(l *lexer) stateFn {
|
||||
switch r := l.next(); {
|
||||
case isEOF(r):
|
||||
l.emit(itemEOF)
|
||||
return nil
|
||||
|
||||
case isEOL(r):
|
||||
l.ignore()
|
||||
return lexBeforeKey
|
||||
|
||||
case isComment(r):
|
||||
return lexComment
|
||||
|
||||
case isWhitespace(r):
|
||||
l.ignore()
|
||||
return lexBeforeKey
|
||||
|
||||
default:
|
||||
l.backup()
|
||||
return lexKey
|
||||
}
|
||||
}
|
||||
|
||||
// lexComment scans a comment line. The comment character has already been scanned.
|
||||
func lexComment(l *lexer) stateFn {
|
||||
l.acceptRun(whitespace)
|
||||
l.ignore()
|
||||
for {
|
||||
switch r := l.next(); {
|
||||
case isEOF(r):
|
||||
l.ignore()
|
||||
l.emit(itemEOF)
|
||||
return nil
|
||||
case isEOL(r):
|
||||
l.emit(itemComment)
|
||||
return lexBeforeKey
|
||||
default:
|
||||
l.appendRune(r)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// lexKey scans the key up to a delimiter
|
||||
func lexKey(l *lexer) stateFn {
|
||||
var r rune
|
||||
|
||||
Loop:
|
||||
for {
|
||||
switch r = l.next(); {
|
||||
|
||||
case isEscape(r):
|
||||
err := l.scanEscapeSequence()
|
||||
if err != nil {
|
||||
return l.errorf(err.Error())
|
||||
}
|
||||
|
||||
case isEndOfKey(r):
|
||||
l.backup()
|
||||
break Loop
|
||||
|
||||
case isEOF(r):
|
||||
break Loop
|
||||
|
||||
default:
|
||||
l.appendRune(r)
|
||||
}
|
||||
}
|
||||
|
||||
if len(l.runes) > 0 {
|
||||
l.emit(itemKey)
|
||||
}
|
||||
|
||||
if isEOF(r) {
|
||||
l.emit(itemEOF)
|
||||
return nil
|
||||
}
|
||||
|
||||
return lexBeforeValue
|
||||
}
|
||||
|
||||
// lexBeforeValue scans the delimiter between key and value.
|
||||
// Leading and trailing whitespace is ignored.
|
||||
// We expect to be just after the key.
|
||||
func lexBeforeValue(l *lexer) stateFn {
|
||||
l.acceptRun(whitespace)
|
||||
l.accept(":=")
|
||||
l.acceptRun(whitespace)
|
||||
l.ignore()
|
||||
return lexValue
|
||||
}
|
||||
|
||||
// lexValue scans text until the end of the line. We expect to be just after the delimiter.
|
||||
func lexValue(l *lexer) stateFn {
|
||||
for {
|
||||
switch r := l.next(); {
|
||||
case isEscape(r):
|
||||
if isEOL(l.peek()) {
|
||||
l.next()
|
||||
l.acceptRun(whitespace)
|
||||
} else {
|
||||
err := l.scanEscapeSequence()
|
||||
if err != nil {
|
||||
return l.errorf(err.Error())
|
||||
}
|
||||
}
|
||||
|
||||
case isEOL(r):
|
||||
l.emit(itemValue)
|
||||
l.ignore()
|
||||
return lexBeforeKey
|
||||
|
||||
case isEOF(r):
|
||||
l.emit(itemValue)
|
||||
l.emit(itemEOF)
|
||||
return nil
|
||||
|
||||
default:
|
||||
l.appendRune(r)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// scanEscapeSequence scans either one of the escaped characters
|
||||
// or a unicode literal. We expect to be after the escape character.
|
||||
func (l *lexer) scanEscapeSequence() error {
|
||||
switch r := l.next(); {
|
||||
|
||||
case isEscapedCharacter(r):
|
||||
l.appendRune(decodeEscapedCharacter(r))
|
||||
return nil
|
||||
|
||||
case atUnicodeLiteral(r):
|
||||
return l.scanUnicodeLiteral()
|
||||
|
||||
case isEOF(r):
|
||||
return fmt.Errorf("premature EOF")
|
||||
|
||||
// silently drop the escape character and append the rune as is
|
||||
default:
|
||||
l.appendRune(r)
|
||||
return nil
|
||||
}
|
||||
}
|
||||
|
||||
// scans a unicode literal in the form \uXXXX. We expect to be after the \u.
|
||||
func (l *lexer) scanUnicodeLiteral() error {
|
||||
// scan the digits
|
||||
d := make([]rune, 4)
|
||||
for i := 0; i < 4; i++ {
|
||||
d[i] = l.next()
|
||||
if d[i] == eof || !strings.ContainsRune("0123456789abcdefABCDEF", d[i]) {
|
||||
return fmt.Errorf("invalid unicode literal")
|
||||
}
|
||||
}
|
||||
|
||||
// decode the digits into a rune
|
||||
r, err := strconv.ParseInt(string(d), 16, 0)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
l.appendRune(rune(r))
|
||||
return nil
|
||||
}
|
||||
|
||||
// decodeEscapedCharacter returns the unescaped rune. We expect to be after the escape character.
|
||||
func decodeEscapedCharacter(r rune) rune {
|
||||
switch r {
|
||||
case 'f':
|
||||
return '\f'
|
||||
case 'n':
|
||||
return '\n'
|
||||
case 'r':
|
||||
return '\r'
|
||||
case 't':
|
||||
return '\t'
|
||||
default:
|
||||
return r
|
||||
}
|
||||
}
|
||||
|
||||
// atUnicodeLiteral reports whether we are at a unicode literal.
|
||||
// The escape character has already been consumed.
|
||||
func atUnicodeLiteral(r rune) bool {
|
||||
return r == 'u'
|
||||
}
|
||||
|
||||
// isComment reports whether we are at the start of a comment.
|
||||
func isComment(r rune) bool {
|
||||
return r == '#' || r == '!'
|
||||
}
|
||||
|
||||
// isEndOfKey reports whether the rune terminates the current key.
|
||||
func isEndOfKey(r rune) bool {
|
||||
return strings.ContainsRune(" \f\t\r\n:=", r)
|
||||
}
|
||||
|
||||
// isEOF reports whether we are at EOF.
|
||||
func isEOF(r rune) bool {
|
||||
return r == eof
|
||||
}
|
||||
|
||||
// isEOL reports whether we are at a new line character.
|
||||
func isEOL(r rune) bool {
|
||||
return r == '\n' || r == '\r'
|
||||
}
|
||||
|
||||
// isEscape reports whether the rune is the escape character which
|
||||
// prefixes unicode literals and other escaped characters.
|
||||
func isEscape(r rune) bool {
|
||||
return r == '\\'
|
||||
}
|
||||
|
||||
// isEscapedCharacter reports whether we are at one of the characters that need escaping.
|
||||
// The escape character has already been consumed.
|
||||
func isEscapedCharacter(r rune) bool {
|
||||
return strings.ContainsRune(" :=fnrt", r)
|
||||
}
|
||||
|
||||
// isWhitespace reports whether the rune is a whitespace character.
|
||||
func isWhitespace(r rune) bool {
|
||||
return strings.ContainsRune(whitespace, r)
|
||||
}
|
||||
Reference in New Issue
Block a user