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Merge branch 'master' into socket-mode

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Wim
2022-03-25 22:03:04 +01:00
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parent 976202a1e9 5f75f9886d
commit 03d78007e3
1177 changed files with 3543218 additions and 5093 deletions
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19
vendor/github.com/kballard/go-shellquote/LICENSE generated vendored Normal file
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@@ -0,0 +1,19 @@
Copyright (C) 2014 Kevin Ballard
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

36
vendor/github.com/kballard/go-shellquote/README generated vendored Normal file
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@@ -0,0 +1,36 @@
PACKAGE
package shellquote
import "github.com/kballard/go-shellquote"
Shellquote provides utilities for joining/splitting strings using sh's
word-splitting rules.
VARIABLES
var (
UnterminatedSingleQuoteError = errors.New("Unterminated single-quoted string")
UnterminatedDoubleQuoteError = errors.New("Unterminated double-quoted string")
UnterminatedEscapeError = errors.New("Unterminated backslash-escape")
)
FUNCTIONS
func Join(args ...string) string
Join quotes each argument and joins them with a space. If passed to
/bin/sh, the resulting string will be split back into the original
arguments.
func Split(input string) (words []string, err error)
Split splits a string according to /bin/sh's word-splitting rules. It
supports backslash-escapes, single-quotes, and double-quotes. Notably it
does not support the $'' style of quoting. It also doesn't attempt to
perform any other sort of expansion, including brace expansion, shell
expansion, or pathname expansion.
If the given input has an unterminated quoted string or ends in a
backslash-escape, one of UnterminatedSingleQuoteError,
UnterminatedDoubleQuoteError, or UnterminatedEscapeError is returned.

3
vendor/github.com/kballard/go-shellquote/doc.go generated vendored Normal file
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@@ -0,0 +1,3 @@
// Shellquote provides utilities for joining/splitting strings using sh's
// word-splitting rules.
package shellquote

102
vendor/github.com/kballard/go-shellquote/quote.go generated vendored Normal file
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@@ -0,0 +1,102 @@
package shellquote
import (
"bytes"
"strings"
"unicode/utf8"
)
// Join quotes each argument and joins them with a space.
// If passed to /bin/sh, the resulting string will be split back into the
// original arguments.
func Join(args ...string) string {
var buf bytes.Buffer
for i, arg := range args {
if i != 0 {
buf.WriteByte(' ')
}
quote(arg, &buf)
}
return buf.String()
}
const (
specialChars = "\\'\"`${[|&;<>()*?!"
extraSpecialChars = " \t\n"
prefixChars = "~"
)
func quote(word string, buf *bytes.Buffer) {
// We want to try to produce a "nice" output. As such, we will
// backslash-escape most characters, but if we encounter a space, or if we
// encounter an extra-special char (which doesn't work with
// backslash-escaping) we switch over to quoting the whole word. We do this
// with a space because it's typically easier for people to read multi-word
// arguments when quoted with a space rather than with ugly backslashes
// everywhere.
origLen := buf.Len()
if len(word) == 0 {
// oops, no content
buf.WriteString("''")
return
}
cur, prev := word, word
atStart := true
for len(cur) > 0 {
c, l := utf8.DecodeRuneInString(cur)
cur = cur[l:]
if strings.ContainsRune(specialChars, c) || (atStart && strings.ContainsRune(prefixChars, c)) {
// copy the non-special chars up to this point
if len(cur) < len(prev) {
buf.WriteString(prev[0 : len(prev)-len(cur)-l])
}
buf.WriteByte('\\')
buf.WriteRune(c)
prev = cur
} else if strings.ContainsRune(extraSpecialChars, c) {
// start over in quote mode
buf.Truncate(origLen)
goto quote
}
atStart = false
}
if len(prev) > 0 {
buf.WriteString(prev)
}
return
quote:
// quote mode
// Use single-quotes, but if we find a single-quote in the word, we need
// to terminate the string, emit an escaped quote, and start the string up
// again
inQuote := false
for len(word) > 0 {
i := strings.IndexRune(word, '\'')
if i == -1 {
break
}
if i > 0 {
if !inQuote {
buf.WriteByte('\'')
inQuote = true
}
buf.WriteString(word[0:i])
}
word = word[i+1:]
if inQuote {
buf.WriteByte('\'')
inQuote = false
}
buf.WriteString("\\'")
}
if len(word) > 0 {
if !inQuote {
buf.WriteByte('\'')
}
buf.WriteString(word)
buf.WriteByte('\'')
}
}

156
vendor/github.com/kballard/go-shellquote/unquote.go generated vendored Normal file
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@@ -0,0 +1,156 @@
package shellquote
import (
"bytes"
"errors"
"strings"
"unicode/utf8"
)
var (
UnterminatedSingleQuoteError = errors.New("Unterminated single-quoted string")
UnterminatedDoubleQuoteError = errors.New("Unterminated double-quoted string")
UnterminatedEscapeError = errors.New("Unterminated backslash-escape")
)
var (
splitChars = " \n\t"
singleChar = '\''
doubleChar = '"'
escapeChar = '\\'
doubleEscapeChars = "$`\"\n\\"
)
// Split splits a string according to /bin/sh's word-splitting rules. It
// supports backslash-escapes, single-quotes, and double-quotes. Notably it does
// not support the $'' style of quoting. It also doesn't attempt to perform any
// other sort of expansion, including brace expansion, shell expansion, or
// pathname expansion.
//
// If the given input has an unterminated quoted string or ends in a
// backslash-escape, one of UnterminatedSingleQuoteError,
// UnterminatedDoubleQuoteError, or UnterminatedEscapeError is returned.
func Split(input string) (words []string, err error) {
var buf bytes.Buffer
words = make([]string, 0)
for len(input) > 0 {
// skip any splitChars at the start
c, l := utf8.DecodeRuneInString(input)
if strings.ContainsRune(splitChars, c) {
input = input[l:]
continue
} else if c == escapeChar {
// Look ahead for escaped newline so we can skip over it
next := input[l:]
if len(next) == 0 {
err = UnterminatedEscapeError
return
}
c2, l2 := utf8.DecodeRuneInString(next)
if c2 == '\n' {
input = next[l2:]
continue
}
}
var word string
word, input, err = splitWord(input, &buf)
if err != nil {
return
}
words = append(words, word)
}
return
}
func splitWord(input string, buf *bytes.Buffer) (word string, remainder string, err error) {
buf.Reset()
raw:
{
cur := input
for len(cur) > 0 {
c, l := utf8.DecodeRuneInString(cur)
cur = cur[l:]
if c == singleChar {
buf.WriteString(input[0 : len(input)-len(cur)-l])
input = cur
goto single
} else if c == doubleChar {
buf.WriteString(input[0 : len(input)-len(cur)-l])
input = cur
goto double
} else if c == escapeChar {
buf.WriteString(input[0 : len(input)-len(cur)-l])
input = cur
goto escape
} else if strings.ContainsRune(splitChars, c) {
buf.WriteString(input[0 : len(input)-len(cur)-l])
return buf.String(), cur, nil
}
}
if len(input) > 0 {
buf.WriteString(input)
input = ""
}
goto done
}
escape:
{
if len(input) == 0 {
return "", "", UnterminatedEscapeError
}
c, l := utf8.DecodeRuneInString(input)
if c == '\n' {
// a backslash-escaped newline is elided from the output entirely
} else {
buf.WriteString(input[:l])
}
input = input[l:]
}
goto raw
single:
{
i := strings.IndexRune(input, singleChar)
if i == -1 {
return "", "", UnterminatedSingleQuoteError
}
buf.WriteString(input[0:i])
input = input[i+1:]
goto raw
}
double:
{
cur := input
for len(cur) > 0 {
c, l := utf8.DecodeRuneInString(cur)
cur = cur[l:]
if c == doubleChar {
buf.WriteString(input[0 : len(input)-len(cur)-l])
input = cur
goto raw
} else if c == escapeChar {
// bash only supports certain escapes in double-quoted strings
c2, l2 := utf8.DecodeRuneInString(cur)
cur = cur[l2:]
if strings.ContainsRune(doubleEscapeChars, c2) {
buf.WriteString(input[0 : len(input)-len(cur)-l-l2])
if c2 == '\n' {
// newline is special, skip the backslash entirely
} else {
buf.WriteRune(c2)
}
input = cur
}
}
}
return "", "", UnterminatedDoubleQuoteError
}
done:
return buf.String(), input, nil
}

16
vendor/github.com/lrstanley/girc/README.md generated vendored
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@@ -1,26 +1,20 @@
<p align="center"><a href="https://godoc.org/github.com/lrstanley/girc"><img width="270" src="http://i.imgur.com/DEnyrdB.png"></a></p>
<p align="center"><a href="https://pkg.go.dev/github.com/lrstanley/girc"><img width="270" src="http://i.imgur.com/DEnyrdB.png"></a></p>
<p align="center">girc, a flexible IRC library for Go</p>
<p align="center">
<a href="https://travis-ci.org/lrstanley/girc"><img src="https://travis-ci.org/lrstanley/girc.svg?branch=master" alt="Build Status"></a>
<a href="https://github.com/lrstanley/girc/actions"><img src="https://github.com/lrstanley/girc/workflows/test/badge.svg" alt="Test Status"></a>
<a href="https://codecov.io/gh/lrstanley/girc"><img src="https://codecov.io/gh/lrstanley/girc/branch/master/graph/badge.svg" alt="Coverage Status"></a>
<a href="https://godoc.org/github.com/lrstanley/girc"><img src="https://godoc.org/github.com/lrstanley/girc?status.png" alt="GoDoc"></a>
<a href="https://pkg.go.dev/github.com/lrstanley/girc"><img src="https://pkg.go.dev/badge/github.com/lrstanley/girc" alt="GoDoc"></a>
<a href="https://goreportcard.com/report/github.com/lrstanley/girc"><img src="https://goreportcard.com/badge/github.com/lrstanley/girc" alt="Go Report Card"></a>
<a href="https://byteirc.org/channel/%23%2Fdev%2Fnull"><img src="https://img.shields.io/badge/ByteIRC-%23%2Fdev%2Fnull-blue.svg" alt="IRC Chat"></a>
<a href="https://liam.sh/chat"><img src="https://img.shields.io/badge/community-chat%20with%20us-green.svg" alt="Community Chat"></a>
</p>
## Status
**girc is fairly close to marking the 1.0.0 endpoint, which will be tagged as
necessary, so you will be able to use this with care knowing the specific tag
you're using won't have breaking changes**
## Features
- Focuses on simplicity, yet tries to still be flexible.
- Only requires [standard library packages](https://godoc.org/github.com/lrstanley/girc?imports)
- Event based triggering/responses ([example](https://godoc.org/github.com/lrstanley/girc#ex-package--Commands), and [CTCP too](https://godoc.org/github.com/lrstanley/girc#Commands.SendCTCP)!)
- [Documentation](https://godoc.org/github.com/lrstanley/girc) is _mostly_ complete.
- Support for almost all of the [IRCv3 spec](http://ircv3.net/software/libraries.html).
- Support for a good portion of the [IRCv3 spec](http://ircv3.net/software/libraries.html).
- SASL Auth (currently only `PLAIN` and `EXTERNAL` is support by default,
however you can simply implement `SASLMech` yourself to support additional
mechanisms.)

2
vendor/github.com/lrstanley/girc/builtin.go generated vendored
View File

@@ -451,7 +451,7 @@ func handleNAMES(c *Client, e Event) {
var modes, nick string
var ok bool
s := &Source{}
var s *Source
c.state.Lock()
for i := 0; i < len(parts); i++ {

2
vendor/github.com/lrstanley/girc/cap.go generated vendored
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@@ -106,7 +106,7 @@ func parseCap(raw string) map[string]map[string]string {
if j < 0 {
out[parts[i][:val]][option] = ""
} else {
out[parts[i][:val]][option[:j]] = option[j+1 : len(option)]
out[parts[i][:val]][option[:j]] = option[j+1:]
}
}
}

1
vendor/github.com/lrstanley/girc/cap_sasl.go generated vendored
View File

@@ -120,7 +120,6 @@ func handleSASL(c *Client, e Event) {
break
}
}
return
}
func handleSASLError(c *Client, e Event) {

10
vendor/github.com/lrstanley/girc/conn.go generated vendored
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@@ -43,8 +43,7 @@ type ircConn struct {
lastPing time.Time
// lastPong is the last successful time that we pinged the server and
// received a successful pong back.
lastPong time.Time
pingDelay time.Duration
lastPong time.Time
}
// Dialer is an interface implementation of net.Dialer. Use this if you would
@@ -477,7 +476,7 @@ func (c *Client) write(event *Event) {
func (c *ircConn) rate(chars int) time.Duration {
_time := time.Second + ((time.Duration(chars) * time.Second) / 100)
if c.writeDelay += _time - time.Now().Sub(c.lastWrite); c.writeDelay < 0 {
if c.writeDelay += _time - time.Since(c.lastWrite); c.writeDelay < 0 {
c.writeDelay = 0
}
@@ -607,15 +606,16 @@ func (c *Client) pingLoop(ctx context.Context, errs chan error, wg *sync.WaitGro
if time.Since(c.conn.lastPong) > c.Config.PingDelay+(60*time.Second) {
// It's 60 seconds over what out ping delay is, connection
// has probably dropped.
errs <- ErrTimedOut{
err := ErrTimedOut{
TimeSinceSuccess: time.Since(c.conn.lastPong),
LastPong: c.conn.lastPong,
LastPing: c.conn.lastPing,
Delay: c.Config.PingDelay,
}
wg.Done()
c.conn.mu.RUnlock()
errs <- err
wg.Done()
return
}
c.conn.mu.RUnlock()

1
vendor/github.com/lrstanley/girc/constants.go generated vendored
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@@ -347,4 +347,5 @@ const (
RPL_LOCALUSERS = "265" // aircd/hybrid/bahamut, used on freenode.
RPL_TOPICWHOTIME = "333" // ircu, used on freenode.
RPL_WHOSPCRPL = "354" // ircu, used on networks with WHOX support.
RPL_CREATIONTIME = "329"
)

4
vendor/github.com/lrstanley/girc/event.go generated vendored
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@@ -13,7 +13,7 @@ import (
const (
eventSpace byte = ' ' // Separator.
maxLength = 510 // Maximum length is 510 (2 for line endings).
maxLength int = 510 // Maximum length is 510 (2 for line endings).
)
// cutCRFunc is used to trim CR characters from prefixes/messages.
@@ -636,6 +636,4 @@ func (s *Source) writeTo(buffer *bytes.Buffer) {
buffer.WriteByte(prefixHost)
buffer.WriteString(s.Host)
}
return
}

1
vendor/github.com/lrstanley/girc/handler.go generated vendored
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@@ -458,7 +458,6 @@ func recoverHandlerPanic(client *Client, event *Event, id string, skip int) {
}
client.Config.RecoverFunc(client, err)
return
}
// HandlerError is the error returned when a panic is intentionally recovered

0
vendor/github.com/matrix-org/gomatrix/.gitignore → vendor/github.com/matterbridge/gomatrix/.gitignore generated vendored
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vendor/github.com/matrix-org/gomatrix/.golangci.yml → vendor/github.com/matterbridge/gomatrix/.golangci.yml generated vendored
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0
vendor/github.com/matrix-org/gomatrix/.travis.yml → vendor/github.com/matterbridge/gomatrix/.travis.yml generated vendored
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vendor/github.com/matrix-org/gomatrix/CHANGELOG.md → vendor/github.com/matterbridge/gomatrix/CHANGELOG.md generated vendored
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0
vendor/github.com/matrix-org/gomatrix/LICENSE → vendor/github.com/matterbridge/gomatrix/LICENSE generated vendored
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0
vendor/github.com/matrix-org/gomatrix/README.md → vendor/github.com/matterbridge/gomatrix/README.md generated vendored
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0
vendor/github.com/matrix-org/gomatrix/client.go → vendor/github.com/matterbridge/gomatrix/client.go generated vendored
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0
vendor/github.com/matrix-org/gomatrix/events.go → vendor/github.com/matterbridge/gomatrix/events.go generated vendored
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0
vendor/github.com/matrix-org/gomatrix/filter.go → vendor/github.com/matterbridge/gomatrix/filter.go generated vendored
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0
vendor/github.com/matrix-org/gomatrix/identifier.go → vendor/github.com/matterbridge/gomatrix/identifier.go generated vendored
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0
vendor/github.com/matrix-org/gomatrix/requests.go → vendor/github.com/matterbridge/gomatrix/requests.go generated vendored
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vendor/github.com/matrix-org/gomatrix/responses.go → vendor/github.com/matterbridge/gomatrix/responses.go generated vendored
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vendor/github.com/matrix-org/gomatrix/room.go → vendor/github.com/matterbridge/gomatrix/room.go generated vendored
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vendor/github.com/matrix-org/gomatrix/store.go → vendor/github.com/matterbridge/gomatrix/store.go generated vendored
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vendor/github.com/matrix-org/gomatrix/sync.go → vendor/github.com/matterbridge/gomatrix/sync.go generated vendored
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vendor/github.com/matrix-org/gomatrix/tags.go → vendor/github.com/matterbridge/gomatrix/tags.go generated vendored
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0
vendor/github.com/matrix-org/gomatrix/userids.go → vendor/github.com/matterbridge/gomatrix/userids.go generated vendored
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4
vendor/github.com/mdp/qrterminal/.travis.yml generated vendored Normal file
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@@ -0,0 +1,4 @@
language: go
go:
- tip

11
vendor/github.com/mdp/qrterminal/CHANGELOG.md generated vendored Normal file
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@@ -0,0 +1,11 @@
## 1.0.0
Update to add a quiet zone border to the QR Code - #5 and fixed by [WindomZ](https://github.com/WindomZ) #8
- This can be configured with the `QuietZone int` option
- Defaults to 4 'pixels' wide to match the QR Code spec
- This alters the size of the barcode considerably and is therefore a breaking change, resulting in a bump to v1.0.0
## 0.2.1
Fix direction of the qr code #6 by (https://github.com/mattn)

78
vendor/github.com/mdp/qrterminal/README.md generated vendored Normal file
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@@ -0,0 +1,78 @@
# QRCode Terminal
[![Build Status](https://secure.travis-ci.org/mdp/qrterminal.png)](https://travis-ci.org/mdp/qrterminal)
A golang library for generating QR codes in the terminal.
Originally this was a port of the [NodeJS version](https://github.com/gtanner/qrcode-terminal). Recently it's been updated to allow for smaller code generation using ASCII 'half blocks'
## Example
Full size ASCII block QR Code:
<img src="https://user-images.githubusercontent.com/2868/37992336-0ba06b56-31d1-11e8-9d32-5c6bb008dc74.png" alt="alt text" width="225" height="225">
Smaller 'half blocks' in the terminal:
<img src="https://user-images.githubusercontent.com/2868/37992371-243d4238-31d1-11e8-92f8-e34a794b21af.png" alt="alt text" width="225" height="225">
## Install
`go get github.com/mdp/qrterminal`
## Usage
```go
import (
"github.com/mdp/qrterminal"
"os"
)
func main() {
// Generate a 'dense' qrcode with the 'Low' level error correction and write it to Stdout
qrterminal.Generate("https://github.com/mdp/qrterminal", qrterminal.L, os.Stdout)
}
```
### More complicated
Large Inverted barcode with medium redundancy and a 1 pixel border
```go
import (
"github.com/mdp/qrterminal"
"os"
)
func main() {
config := qrterminal.Config{
Level: qrterminal.M,
Writer: os.Stdout,
BlackChar: qrterminal.WHITE,
WhiteChar: qrterminal.BLACK,
QuietZone: 1,
}
qrterminal.GenerateWithConfig("https://github.com/mdp/qrterminal", config)
}
```
HalfBlock barcode with medium redundancy
```go
import (
"github.com/mdp/qrterminal"
"os"
)
func main() {
config := qrterminal.Config{
HalfBlocks: true,
Level: qrterminal.M,
Writer: os.Stdout,
}
qrterminal.Generate("https://github.com/mdp/qrterminal", config)
}
```
Credits:
Mark Percival m@mdp.im
[Matthew Kennerly](https://github.com/mtkennerly)
[Viric](https://github.com/viric)
[WindomZ](https://github.com/WindomZ)
[mattn](https://github.com/mattn)

153
vendor/github.com/mdp/qrterminal/qrterminal.go generated vendored Normal file
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@@ -0,0 +1,153 @@
package qrterminal
import (
"io"
"strings"
"rsc.io/qr"
)
const WHITE = "\033[47m \033[0m"
const BLACK = "\033[40m \033[0m"
// Use ascii blocks to form the QR Code
const BLACK_WHITE = "▄"
const BLACK_BLACK = " "
const WHITE_BLACK = "▀"
const WHITE_WHITE = "█"
// Level - the QR Code's redundancy level
const H = qr.H
const M = qr.M
const L = qr.L
// default is 4-pixel-wide white quiet zone
const QUIET_ZONE = 4
//Config for generating a barcode
type Config struct {
Level qr.Level
Writer io.Writer
HalfBlocks bool
BlackChar string
BlackWhiteChar string
WhiteChar string
WhiteBlackChar string
QuietZone int
}
func (c *Config) writeFullBlocks(w io.Writer, code *qr.Code) {
white := c.WhiteChar
black := c.BlackChar
// Frame the barcode in a 1 pixel border
w.Write([]byte(stringRepeat(stringRepeat(white,
code.Size+c.QuietZone*2)+"\n", c.QuietZone))) // top border
for i := 0; i <= code.Size; i++ {
w.Write([]byte(stringRepeat(white, c.QuietZone))) // left border
for j := 0; j <= code.Size; j++ {
if code.Black(j, i) {
w.Write([]byte(black))
} else {
w.Write([]byte(white))
}
}
w.Write([]byte(stringRepeat(white, c.QuietZone-1) + "\n")) // right border
}
w.Write([]byte(stringRepeat(stringRepeat(white,
code.Size+c.QuietZone*2)+"\n", c.QuietZone-1))) // bottom border
}
func (c *Config) writeHalfBlocks(w io.Writer, code *qr.Code) {
ww := c.WhiteChar
bb := c.BlackChar
wb := c.WhiteBlackChar
bw := c.BlackWhiteChar
// Frame the barcode in a 4 pixel border
// top border
if c.QuietZone%2 != 0 {
w.Write([]byte(stringRepeat(bw, code.Size+c.QuietZone*2) + "\n"))
w.Write([]byte(stringRepeat(stringRepeat(ww,
code.Size+c.QuietZone*2)+"\n", c.QuietZone/2)))
} else {
w.Write([]byte(stringRepeat(stringRepeat(ww,
code.Size+c.QuietZone*2)+"\n", c.QuietZone/2)))
}
for i := 0; i <= code.Size; i += 2 {
w.Write([]byte(stringRepeat(ww, c.QuietZone))) // left border
for j := 0; j <= code.Size; j++ {
next_black := false
if i+1 < code.Size {
next_black = code.Black(j, i+1)
}
curr_black := code.Black(j, i)
if curr_black && next_black {
w.Write([]byte(bb))
} else if curr_black && !next_black {
w.Write([]byte(bw))
} else if !curr_black && !next_black {
w.Write([]byte(ww))
} else {
w.Write([]byte(wb))
}
}
w.Write([]byte(stringRepeat(ww, c.QuietZone-1) + "\n")) // right border
}
// bottom border
if c.QuietZone%2 == 0 {
w.Write([]byte(stringRepeat(stringRepeat(ww,
code.Size+c.QuietZone*2)+"\n", c.QuietZone/2-1)))
w.Write([]byte(stringRepeat(wb, code.Size+c.QuietZone*2) + "\n"))
} else {
w.Write([]byte(stringRepeat(stringRepeat(ww,
code.Size+c.QuietZone*2)+"\n", c.QuietZone/2)))
}
}
func stringRepeat(s string, count int) string {
if count <= 0 {
return ""
}
return strings.Repeat(s, count)
}
// GenerateWithConfig expects a string to encode and a config
func GenerateWithConfig(text string, config Config) {
if config.QuietZone < 1 {
config.QuietZone = 1 // at least 1-pixel-wide white quiet zone
}
w := config.Writer
code, _ := qr.Encode(text, config.Level)
if config.HalfBlocks {
config.writeHalfBlocks(w, code)
} else {
config.writeFullBlocks(w, code)
}
}
// Generate a QR Code and write it out to io.Writer
func Generate(text string, l qr.Level, w io.Writer) {
config := Config{
Level: l,
Writer: w,
BlackChar: BLACK,
WhiteChar: WHITE,
QuietZone: QUIET_ZONE,
}
GenerateWithConfig(text, config)
}
// Generate a QR Code with half blocks and write it out to io.Writer
func GenerateHalfBlock(text string, l qr.Level, w io.Writer) {
config := Config{
Level: l,
Writer: w,
HalfBlocks: true,
BlackChar: BLACK_BLACK,
WhiteBlackChar: WHITE_BLACK,
WhiteChar: WHITE_WHITE,
BlackWhiteChar: BLACK_WHITE,
QuietZone: QUIET_ZONE,
}
GenerateWithConfig(text, config)
}

504
vendor/github.com/missdeer/golib/LICENSE generated vendored
View File

@@ -1,504 +0,0 @@
GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
Copyright (C) 1991, 1999 Free Software Foundation, Inc.
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
[This is the first released version of the Lesser GPL. It also counts
as the successor of the GNU Library Public License, version 2, hence
the version number 2.1.]
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Ty Coon, President of Vice
That's all there is to it!

72
vendor/github.com/missdeer/golib/ic/convutf8.go generated vendored
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@@ -1,72 +0,0 @@
// Package ic convert text between CJK and UTF-8 in pure Go way
package ic
import (
"bytes"
"errors"
"io/ioutil"
"strings"
"golang.org/x/text/encoding"
"golang.org/x/text/encoding/japanese"
"golang.org/x/text/encoding/korean"
"golang.org/x/text/encoding/simplifiedchinese"
"golang.org/x/text/encoding/traditionalchinese"
"golang.org/x/text/transform"
)
var (
transformers = map[string]encoding.Encoding{
"gbk": simplifiedchinese.GBK,
"cp936": simplifiedchinese.GBK,
"windows-936": simplifiedchinese.GBK,
"gb18030": simplifiedchinese.GB18030,
"gb2312": simplifiedchinese.HZGB2312,
"big5": traditionalchinese.Big5,
"big-5": traditionalchinese.Big5,
"cp950": traditionalchinese.Big5,
"euc-kr": korean.EUCKR,
"euckr": korean.EUCKR,
"cp949": korean.EUCKR,
"euc-jp": japanese.EUCJP,
"eucjp": japanese.EUCJP,
"shift-jis": japanese.ShiftJIS,
"iso-2022-jp": japanese.ISO2022JP,
"cp932": japanese.ISO2022JP,
"windows-31j": japanese.ISO2022JP,
}
)
// ToUTF8 convert from CJK encoding to UTF-8
func ToUTF8(from string, s []byte) ([]byte, error) {
var reader *transform.Reader
transformer, ok := transformers[strings.ToLower(from)]
if !ok {
return s, errors.New("Unsupported encoding " + from)
}
reader = transform.NewReader(bytes.NewReader(s), transformer.NewDecoder())
d, e := ioutil.ReadAll(reader)
if e != nil {
return nil, e
}
return d, nil
}
// FromUTF8 convert from UTF-8 encoding to CJK encoding
func FromUTF8(to string, s []byte) ([]byte, error) {
var reader *transform.Reader
transformer, ok := transformers[strings.ToLower(to)]
if !ok {
return s, errors.New("Unsupported encoding " + to)
}
reader = transform.NewReader(bytes.NewReader(s), transformer.NewEncoder())
d, e := ioutil.ReadAll(reader)
if e != nil {
return nil, e
}
return d, nil
}

31
vendor/github.com/missdeer/golib/ic/ic.go generated vendored
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@@ -1,31 +0,0 @@
package ic
import "log"
// Convert convert bytes from CJK or UTF-8 to UTF-8 or CJK
func Convert(from string, to string, src []byte) []byte {
if to == "utf-8" {
out, e := ToUTF8(from, src)
if e == nil {
return out
}
log.Printf("converting from %s to UTF-8 failed: %v", from, e)
return src
}
if from == "utf-8" {
out, e := FromUTF8(to, src)
if e == nil {
return out
}
log.Printf("converting from UTF-8 to %s failed: %v", to, e)
return src
}
log.Println("only converting between CJK encodings and UTF-8 is supported")
return src
}
// ConvertString convert string from CJK or UTF-8 to UTF-8 or CJK
func ConvertString(from string, to string, src string) string {
return string(Convert(from, to, []byte(src)))
}

27
vendor/github.com/remyoudompheng/bigfft/LICENSE generated vendored Normal file
View File

@@ -0,0 +1,27 @@
Copyright (c) 2012 The Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

43
vendor/github.com/remyoudompheng/bigfft/README generated vendored Normal file
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@@ -0,0 +1,43 @@
Benchmarking math/big vs. bigfft
Number size old ns/op new ns/op delta
1kb 1599 1640 +2.56%
10kb 61533 62170 +1.04%
50kb 833693 831051 -0.32%
100kb 2567995 2693864 +4.90%
1Mb 105237800 28446400 -72.97%
5Mb 1272947000 168554600 -86.76%
10Mb 3834354000 405120200 -89.43%
20Mb 11514488000 845081600 -92.66%
50Mb 49199945000 2893950000 -94.12%
100Mb 147599836000 5921594000 -95.99%
Benchmarking GMP vs bigfft
Number size GMP ns/op Go ns/op delta
1kb 536 1500 +179.85%
10kb 26669 50777 +90.40%
50kb 252270 658534 +161.04%
100kb 686813 2127534 +209.77%
1Mb 12100000 22391830 +85.06%
5Mb 111731843 133550600 +19.53%
10Mb 212314000 318595800 +50.06%
20Mb 490196000 671512800 +36.99%
50Mb 1280000000 2451476000 +91.52%
100Mb 2673000000 5228991000 +95.62%
Benchmarks were run on a Core 2 Quad Q8200 (2.33GHz).
FFT is enabled when input numbers are over 200kbits.
Scanning large decimal number from strings.
(math/big [n^2 complexity] vs bigfft [n^1.6 complexity], Core i5-4590)
Digits old ns/op new ns/op delta
1e3 9995 10876 +8.81%
1e4 175356 243806 +39.03%
1e5 9427422 6780545 -28.08%
1e6 1776707489 144867502 -91.85%
2e6 6865499995 346540778 -94.95%
5e6 42641034189 1069878799 -97.49%
10e6 151975273589 2693328580 -98.23%

36
vendor/github.com/remyoudompheng/bigfft/arith_386.s generated vendored Normal file
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// Trampolines to math/big assembly implementations.
#include "textflag.h"
// func addVV(z, x, y []Word) (c Word)
TEXT ·addVV(SB),NOSPLIT,$0
JMP math∕big·addVV(SB)
// func subVV(z, x, y []Word) (c Word)
TEXT ·subVV(SB),NOSPLIT,$0
JMP math∕big·subVV(SB)
// func addVW(z, x []Word, y Word) (c Word)
TEXT ·addVW(SB),NOSPLIT,$0
JMP math∕big·addVW(SB)
// func subVW(z, x []Word, y Word) (c Word)
TEXT ·subVW(SB),NOSPLIT,$0
JMP math∕big·subVW(SB)
// func shlVU(z, x []Word, s uint) (c Word)
TEXT ·shlVU(SB),NOSPLIT,$0
JMP math∕big·shlVU(SB)
// func shrVU(z, x []Word, s uint) (c Word)
TEXT ·shrVU(SB),NOSPLIT,$0
JMP math∕big·shrVU(SB)
// func mulAddVWW(z, x []Word, y, r Word) (c Word)
TEXT ·mulAddVWW(SB),NOSPLIT,$0
JMP math∕big·mulAddVWW(SB)
// func addMulVVW(z, x []Word, y Word) (c Word)
TEXT ·addMulVVW(SB),NOSPLIT,$0
JMP math∕big·addMulVVW(SB)

38
vendor/github.com/remyoudompheng/bigfft/arith_amd64.s generated vendored Normal file
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@@ -0,0 +1,38 @@
// Trampolines to math/big assembly implementations.
#include "textflag.h"
// func addVV(z, x, y []Word) (c Word)
TEXT ·addVV(SB),NOSPLIT,$0
JMP math∕big·addVV(SB)
// func subVV(z, x, y []Word) (c Word)
// (same as addVV except for SBBQ instead of ADCQ and label names)
TEXT ·subVV(SB),NOSPLIT,$0
JMP math∕big·subVV(SB)
// func addVW(z, x []Word, y Word) (c Word)
TEXT ·addVW(SB),NOSPLIT,$0
JMP math∕big·addVW(SB)
// func subVW(z, x []Word, y Word) (c Word)
// (same as addVW except for SUBQ/SBBQ instead of ADDQ/ADCQ and label names)
TEXT ·subVW(SB),NOSPLIT,$0
JMP math∕big·subVW(SB)
// func shlVU(z, x []Word, s uint) (c Word)
TEXT ·shlVU(SB),NOSPLIT,$0
JMP math∕big·shlVU(SB)
// func shrVU(z, x []Word, s uint) (c Word)
TEXT ·shrVU(SB),NOSPLIT,$0
JMP math∕big·shrVU(SB)
// func mulAddVWW(z, x []Word, y, r Word) (c Word)
TEXT ·mulAddVWW(SB),NOSPLIT,$0
JMP math∕big·mulAddVWW(SB)
// func addMulVVW(z, x []Word, y Word) (c Word)
TEXT ·addMulVVW(SB),NOSPLIT,$0
JMP math∕big·addMulVVW(SB)

36
vendor/github.com/remyoudompheng/bigfft/arith_arm.s generated vendored Normal file
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@@ -0,0 +1,36 @@
// Trampolines to math/big assembly implementations.
#include "textflag.h"
// func addVV(z, x, y []Word) (c Word)
TEXT ·addVV(SB),NOSPLIT,$0
B math∕big·addVV(SB)
// func subVV(z, x, y []Word) (c Word)
TEXT ·subVV(SB),NOSPLIT,$0
B math∕big·subVV(SB)
// func addVW(z, x []Word, y Word) (c Word)
TEXT ·addVW(SB),NOSPLIT,$0
B math∕big·addVW(SB)
// func subVW(z, x []Word, y Word) (c Word)
TEXT ·subVW(SB),NOSPLIT,$0
B math∕big·subVW(SB)
// func shlVU(z, x []Word, s uint) (c Word)
TEXT ·shlVU(SB),NOSPLIT,$0
B math∕big·shlVU(SB)
// func shrVU(z, x []Word, s uint) (c Word)
TEXT ·shrVU(SB),NOSPLIT,$0
B math∕big·shrVU(SB)
// func mulAddVWW(z, x []Word, y, r Word) (c Word)
TEXT ·mulAddVWW(SB),NOSPLIT,$0
B math∕big·mulAddVWW(SB)
// func addMulVVW(z, x []Word, y Word) (c Word)
TEXT ·addMulVVW(SB),NOSPLIT,$0
B math∕big·addMulVVW(SB)

36
vendor/github.com/remyoudompheng/bigfft/arith_arm64.s generated vendored Normal file
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@@ -0,0 +1,36 @@
// Trampolines to math/big assembly implementations.
#include "textflag.h"
// func addVV(z, x, y []Word) (c Word)
TEXT ·addVV(SB),NOSPLIT,$0
B math∕big·addVV(SB)
// func subVV(z, x, y []Word) (c Word)
TEXT ·subVV(SB),NOSPLIT,$0
B math∕big·subVV(SB)
// func addVW(z, x []Word, y Word) (c Word)
TEXT ·addVW(SB),NOSPLIT,$0
B math∕big·addVW(SB)
// func subVW(z, x []Word, y Word) (c Word)
TEXT ·subVW(SB),NOSPLIT,$0
B math∕big·subVW(SB)
// func shlVU(z, x []Word, s uint) (c Word)
TEXT ·shlVU(SB),NOSPLIT,$0
B math∕big·shlVU(SB)
// func shrVU(z, x []Word, s uint) (c Word)
TEXT ·shrVU(SB),NOSPLIT,$0
B math∕big·shrVU(SB)
// func mulAddVWW(z, x []Word, y, r Word) (c Word)
TEXT ·mulAddVWW(SB),NOSPLIT,$0
B math∕big·mulAddVWW(SB)
// func addMulVVW(z, x []Word, y Word) (c Word)
TEXT ·addMulVVW(SB),NOSPLIT,$0
B math∕big·addMulVVW(SB)

16
vendor/github.com/remyoudompheng/bigfft/arith_decl.go generated vendored Normal file
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@@ -0,0 +1,16 @@
// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package bigfft
import . "math/big"
// implemented in arith_$GOARCH.s
func addVV(z, x, y []Word) (c Word)
func subVV(z, x, y []Word) (c Word)
func addVW(z, x []Word, y Word) (c Word)
func subVW(z, x []Word, y Word) (c Word)
func shlVU(z, x []Word, s uint) (c Word)
func mulAddVWW(z, x []Word, y, r Word) (c Word)
func addMulVVW(z, x []Word, y Word) (c Word)

40
vendor/github.com/remyoudompheng/bigfft/arith_mips64x.s generated vendored Normal file
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@@ -0,0 +1,40 @@
// Trampolines to math/big assembly implementations.
// +build mips64 mips64le
#include "textflag.h"
// func addVV(z, x, y []Word) (c Word)
TEXT ·addVV(SB),NOSPLIT,$0
JMP math∕big·addVV(SB)
// func subVV(z, x, y []Word) (c Word)
// (same as addVV except for SBBQ instead of ADCQ and label names)
TEXT ·subVV(SB),NOSPLIT,$0
JMP math∕big·subVV(SB)
// func addVW(z, x []Word, y Word) (c Word)
TEXT ·addVW(SB),NOSPLIT,$0
JMP math∕big·addVW(SB)
// func subVW(z, x []Word, y Word) (c Word)
// (same as addVW except for SUBQ/SBBQ instead of ADDQ/ADCQ and label names)
TEXT ·subVW(SB),NOSPLIT,$0
JMP math∕big·subVW(SB)
// func shlVU(z, x []Word, s uint) (c Word)
TEXT ·shlVU(SB),NOSPLIT,$0
JMP math∕big·shlVU(SB)
// func shrVU(z, x []Word, s uint) (c Word)
TEXT ·shrVU(SB),NOSPLIT,$0
JMP math∕big·shrVU(SB)
// func mulAddVWW(z, x []Word, y, r Word) (c Word)
TEXT ·mulAddVWW(SB),NOSPLIT,$0
JMP math∕big·mulAddVWW(SB)
// func addMulVVW(z, x []Word, y Word) (c Word)
TEXT ·addMulVVW(SB),NOSPLIT,$0
JMP math∕big·addMulVVW(SB)

40
vendor/github.com/remyoudompheng/bigfft/arith_mipsx.s generated vendored Normal file
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@@ -0,0 +1,40 @@
// Trampolines to math/big assembly implementations.
// +build mips mipsle
#include "textflag.h"
// func addVV(z, x, y []Word) (c Word)
TEXT ·addVV(SB),NOSPLIT,$0
JMP math∕big·addVV(SB)
// func subVV(z, x, y []Word) (c Word)
// (same as addVV except for SBBQ instead of ADCQ and label names)
TEXT ·subVV(SB),NOSPLIT,$0
JMP math∕big·subVV(SB)
// func addVW(z, x []Word, y Word) (c Word)
TEXT ·addVW(SB),NOSPLIT,$0
JMP math∕big·addVW(SB)
// func subVW(z, x []Word, y Word) (c Word)
// (same as addVW except for SUBQ/SBBQ instead of ADDQ/ADCQ and label names)
TEXT ·subVW(SB),NOSPLIT,$0
JMP math∕big·subVW(SB)
// func shlVU(z, x []Word, s uint) (c Word)
TEXT ·shlVU(SB),NOSPLIT,$0
JMP math∕big·shlVU(SB)
// func shrVU(z, x []Word, s uint) (c Word)
TEXT ·shrVU(SB),NOSPLIT,$0
JMP math∕big·shrVU(SB)
// func mulAddVWW(z, x []Word, y, r Word) (c Word)
TEXT ·mulAddVWW(SB),NOSPLIT,$0
JMP math∕big·mulAddVWW(SB)
// func addMulVVW(z, x []Word, y Word) (c Word)
TEXT ·addMulVVW(SB),NOSPLIT,$0
JMP math∕big·addMulVVW(SB)

38
vendor/github.com/remyoudompheng/bigfft/arith_ppc64x.s generated vendored Normal file
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@@ -0,0 +1,38 @@
// Trampolines to math/big assembly implementations.
// +build ppc64 ppc64le
#include "textflag.h"
// func addVV(z, x, y []Word) (c Word)
TEXT ·addVV(SB),NOSPLIT,$0
BR math∕big·addVV(SB)
// func subVV(z, x, y []Word) (c Word)
TEXT ·subVV(SB),NOSPLIT,$0
BR math∕big·subVV(SB)
// func addVW(z, x []Word, y Word) (c Word)
TEXT ·addVW(SB),NOSPLIT,$0
BR math∕big·addVW(SB)
// func subVW(z, x []Word, y Word) (c Word)
TEXT ·subVW(SB),NOSPLIT,$0
BR math∕big·subVW(SB)
// func shlVU(z, x []Word, s uint) (c Word)
TEXT ·shlVU(SB),NOSPLIT,$0
BR math∕big·shlVU(SB)
// func shrVU(z, x []Word, s uint) (c Word)
TEXT ·shrVU(SB),NOSPLIT,$0
BR math∕big·shrVU(SB)
// func mulAddVWW(z, x []Word, y, r Word) (c Word)
TEXT ·mulAddVWW(SB),NOSPLIT,$0
BR math∕big·mulAddVWW(SB)
// func addMulVVW(z, x []Word, y Word) (c Word)
TEXT ·addMulVVW(SB),NOSPLIT,$0
BR math∕big·addMulVVW(SB)

37
vendor/github.com/remyoudompheng/bigfft/arith_s390x.s generated vendored Normal file
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@@ -0,0 +1,37 @@
// Trampolines to math/big assembly implementations.
#include "textflag.h"
// func addVV(z, x, y []Word) (c Word)
TEXT ·addVV(SB),NOSPLIT,$0
BR math∕big·addVV(SB)
// func subVV(z, x, y []Word) (c Word)
TEXT ·subVV(SB),NOSPLIT,$0
BR math∕big·subVV(SB)
// func addVW(z, x []Word, y Word) (c Word)
TEXT ·addVW(SB),NOSPLIT,$0
BR math∕big·addVW(SB)
// func subVW(z, x []Word, y Word) (c Word)
TEXT ·subVW(SB),NOSPLIT,$0
BR math∕big·subVW(SB)
// func shlVU(z, x []Word, s uint) (c Word)
TEXT ·shlVU(SB),NOSPLIT,$0
BR math∕big·shlVU(SB)
// func shrVU(z, x []Word, s uint) (c Word)
TEXT ·shrVU(SB),NOSPLIT,$0
BR math∕big·shrVU(SB)
// func mulAddVWW(z, x []Word, y, r Word) (c Word)
TEXT ·mulAddVWW(SB),NOSPLIT,$0
BR math∕big·mulAddVWW(SB)
// func addMulVVW(z, x []Word, y Word) (c Word)
TEXT ·addMulVVW(SB),NOSPLIT,$0
BR math∕big·addMulVVW(SB)

216
vendor/github.com/remyoudompheng/bigfft/fermat.go generated vendored Normal file
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@@ -0,0 +1,216 @@
package bigfft
import (
"math/big"
)
// Arithmetic modulo 2^n+1.
// A fermat of length w+1 represents a number modulo 2^(w*_W) + 1. The last
// word is zero or one. A number has at most two representatives satisfying the
// 0-1 last word constraint.
type fermat nat
func (n fermat) String() string { return nat(n).String() }
func (z fermat) norm() {
n := len(z) - 1
c := z[n]
if c == 0 {
return
}
if z[0] >= c {
z[n] = 0
z[0] -= c
return
}
// z[0] < z[n].
subVW(z, z, c) // Substract c
if c > 1 {
z[n] -= c - 1
c = 1
}
// Add back c.
if z[n] == 1 {
z[n] = 0
return
} else {
addVW(z, z, 1)
}
}
// Shift computes (x << k) mod (2^n+1).
func (z fermat) Shift(x fermat, k int) {
if len(z) != len(x) {
panic("len(z) != len(x) in Shift")
}
n := len(x) - 1
// Shift by n*_W is taking the opposite.
k %= 2 * n * _W
if k < 0 {
k += 2 * n * _W
}
neg := false
if k >= n*_W {
k -= n * _W
neg = true
}
kw, kb := k/_W, k%_W
z[n] = 1 // Add (-1)
if !neg {
for i := 0; i < kw; i++ {
z[i] = 0
}
// Shift left by kw words.
// x = a·2^(n-k) + b
// x<<k = (b<<k) - a
copy(z[kw:], x[:n-kw])
b := subVV(z[:kw+1], z[:kw+1], x[n-kw:])
if z[kw+1] > 0 {
z[kw+1] -= b
} else {
subVW(z[kw+1:], z[kw+1:], b)
}
} else {
for i := kw + 1; i < n; i++ {
z[i] = 0
}
// Shift left and negate, by kw words.
copy(z[:kw+1], x[n-kw:n+1]) // z_low = x_high
b := subVV(z[kw:n], z[kw:n], x[:n-kw]) // z_high -= x_low
z[n] -= b
}
// Add back 1.
if z[n] > 0 {
z[n]--
} else if z[0] < ^big.Word(0) {
z[0]++
} else {
addVW(z, z, 1)
}
// Shift left by kb bits
shlVU(z, z, uint(kb))
z.norm()
}
// ShiftHalf shifts x by k/2 bits the left. Shifting by 1/2 bit
// is multiplication by sqrt(2) mod 2^n+1 which is 2^(3n/4) - 2^(n/4).
// A temporary buffer must be provided in tmp.
func (z fermat) ShiftHalf(x fermat, k int, tmp fermat) {
n := len(z) - 1
if k%2 == 0 {
z.Shift(x, k/2)
return
}
u := (k - 1) / 2
a := u + (3*_W/4)*n
b := u + (_W/4)*n
z.Shift(x, a)
tmp.Shift(x, b)
z.Sub(z, tmp)
}
// Add computes addition mod 2^n+1.
func (z fermat) Add(x, y fermat) fermat {
if len(z) != len(x) {
panic("Add: len(z) != len(x)")
}
addVV(z, x, y) // there cannot be a carry here.
z.norm()
return z
}
// Sub computes substraction mod 2^n+1.
func (z fermat) Sub(x, y fermat) fermat {
if len(z) != len(x) {
panic("Add: len(z) != len(x)")
}
n := len(y) - 1
b := subVV(z[:n], x[:n], y[:n])
b += y[n]
// If b > 0, we need to subtract b<<n, which is the same as adding b.
z[n] = x[n]
if z[0] <= ^big.Word(0)-b {
z[0] += b
} else {
addVW(z, z, b)
}
z.norm()
return z
}
func (z fermat) Mul(x, y fermat) fermat {
if len(x) != len(y) {
panic("Mul: len(x) != len(y)")
}
n := len(x) - 1
if n < 30 {
z = z[:2*n+2]
basicMul(z, x, y)
z = z[:2*n+1]
} else {
var xi, yi, zi big.Int
xi.SetBits(x)
yi.SetBits(y)
zi.SetBits(z)
zb := zi.Mul(&xi, &yi).Bits()
if len(zb) <= n {
// Short product.
copy(z, zb)
for i := len(zb); i < len(z); i++ {
z[i] = 0
}
return z
}
z = zb
}
// len(z) is at most 2n+1.
if len(z) > 2*n+1 {
panic("len(z) > 2n+1")
}
// We now have
// z = z[:n] + 1<<(n*W) * z[n:2n+1]
// which normalizes to:
// z = z[:n] - z[n:2n] + z[2n]
c1 := big.Word(0)
if len(z) > 2*n {
c1 = addVW(z[:n], z[:n], z[2*n])
}
c2 := big.Word(0)
if len(z) >= 2*n {
c2 = subVV(z[:n], z[:n], z[n:2*n])
} else {
m := len(z) - n
c2 = subVV(z[:m], z[:m], z[n:])
c2 = subVW(z[m:n], z[m:n], c2)
}
// Restore carries.
// Substracting z[n] -= c2 is the same
// as z[0] += c2
z = z[:n+1]
z[n] = c1
c := addVW(z, z, c2)
if c != 0 {
panic("impossible")
}
z.norm()
return z
}
// copied from math/big
//
// basicMul multiplies x and y and leaves the result in z.
// The (non-normalized) result is placed in z[0 : len(x) + len(y)].
func basicMul(z, x, y fermat) {
// initialize z
for i := 0; i < len(z); i++ {
z[i] = 0
}
for i, d := range y {
if d != 0 {
z[len(x)+i] = addMulVVW(z[i:i+len(x)], x, d)
}
}
}

370
vendor/github.com/remyoudompheng/bigfft/fft.go generated vendored Normal file
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@@ -0,0 +1,370 @@
// Package bigfft implements multiplication of big.Int using FFT.
//
// The implementation is based on the Schönhage-Strassen method
// using integer FFT modulo 2^n+1.
package bigfft
import (
"math/big"
"unsafe"
)
const _W = int(unsafe.Sizeof(big.Word(0)) * 8)
type nat []big.Word
func (n nat) String() string {
v := new(big.Int)
v.SetBits(n)
return v.String()
}
// fftThreshold is the size (in words) above which FFT is used over
// Karatsuba from math/big.
//
// TestCalibrate seems to indicate a threshold of 60kbits on 32-bit
// arches and 110kbits on 64-bit arches.
var fftThreshold = 1800
// Mul computes the product x*y and returns z.
// It can be used instead of the Mul method of
// *big.Int from math/big package.
func Mul(x, y *big.Int) *big.Int {
xwords := len(x.Bits())
ywords := len(y.Bits())
if xwords > fftThreshold && ywords > fftThreshold {
return mulFFT(x, y)
}
return new(big.Int).Mul(x, y)
}
func mulFFT(x, y *big.Int) *big.Int {
var xb, yb nat = x.Bits(), y.Bits()
zb := fftmul(xb, yb)
z := new(big.Int)
z.SetBits(zb)
if x.Sign()*y.Sign() < 0 {
z.Neg(z)
}
return z
}
// A FFT size of K=1<<k is adequate when K is about 2*sqrt(N) where
// N = x.Bitlen() + y.Bitlen().
func fftmul(x, y nat) nat {
k, m := fftSize(x, y)
xp := polyFromNat(x, k, m)
yp := polyFromNat(y, k, m)
rp := xp.Mul(&yp)
return rp.Int()
}
// fftSizeThreshold[i] is the maximal size (in bits) where we should use
// fft size i.
var fftSizeThreshold = [...]int64{0, 0, 0,
4 << 10, 8 << 10, 16 << 10, // 5
32 << 10, 64 << 10, 1 << 18, 1 << 20, 3 << 20, // 10
8 << 20, 30 << 20, 100 << 20, 300 << 20, 600 << 20,
}
// returns the FFT length k, m the number of words per chunk
// such that m << k is larger than the number of words
// in x*y.
func fftSize(x, y nat) (k uint, m int) {
words := len(x) + len(y)
bits := int64(words) * int64(_W)
k = uint(len(fftSizeThreshold))
for i := range fftSizeThreshold {
if fftSizeThreshold[i] > bits {
k = uint(i)
break
}
}
// The 1<<k chunks of m words must have N bits so that
// 2^N-1 is larger than x*y. That is, m<<k > words
m = words>>k + 1
return
}
// valueSize returns the length (in words) to use for polynomial
// coefficients, to compute a correct product of polynomials P*Q
// where deg(P*Q) < K (== 1<<k) and where coefficients of P and Q are
// less than b^m (== 1 << (m*_W)).
// The chosen length (in bits) must be a multiple of 1 << (k-extra).
func valueSize(k uint, m int, extra uint) int {
// The coefficients of P*Q are less than b^(2m)*K
// so we need W * valueSize >= 2*m*W+K
n := 2*m*_W + int(k) // necessary bits
K := 1 << (k - extra)
if K < _W {
K = _W
}
n = ((n / K) + 1) * K // round to a multiple of K
return n / _W
}
// poly represents an integer via a polynomial in Z[x]/(x^K+1)
// where K is the FFT length and b^m is the computation basis 1<<(m*_W).
// If P = a[0] + a[1] x + ... a[n] x^(K-1), the associated natural number
// is P(b^m).
type poly struct {
k uint // k is such that K = 1<<k.
m int // the m such that P(b^m) is the original number.
a []nat // a slice of at most K m-word coefficients.
}
// polyFromNat slices the number x into a polynomial
// with 1<<k coefficients made of m words.
func polyFromNat(x nat, k uint, m int) poly {
p := poly{k: k, m: m}
length := len(x)/m + 1
p.a = make([]nat, length)
for i := range p.a {
if len(x) < m {
p.a[i] = make(nat, m)
copy(p.a[i], x)
break
}
p.a[i] = x[:m]
x = x[m:]
}
return p
}
// Int evaluates back a poly to its integer value.
func (p *poly) Int() nat {
length := len(p.a)*p.m + 1
if na := len(p.a); na > 0 {
length += len(p.a[na-1])
}
n := make(nat, length)
m := p.m
np := n
for i := range p.a {
l := len(p.a[i])
c := addVV(np[:l], np[:l], p.a[i])
if np[l] < ^big.Word(0) {
np[l] += c
} else {
addVW(np[l:], np[l:], c)
}
np = np[m:]
}
n = trim(n)
return n
}
func trim(n nat) nat {
for i := range n {
if n[len(n)-1-i] != 0 {
return n[:len(n)-i]
}
}
return nil
}
// Mul multiplies p and q modulo X^K-1, where K = 1<<p.k.
// The product is done via a Fourier transform.
func (p *poly) Mul(q *poly) poly {
// extra=2 because:
// * some power of 2 is a K-th root of unity when n is a multiple of K/2.
// * 2 itself is a square (see fermat.ShiftHalf)
n := valueSize(p.k, p.m, 2)
pv, qv := p.Transform(n), q.Transform(n)
rv := pv.Mul(&qv)
r := rv.InvTransform()
r.m = p.m
return r
}
// A polValues represents the value of a poly at the powers of a
// K-th root of unity θ=2^(l/2) in Z/(b^n+1)Z, where b^n = 2^(K/4*l).
type polValues struct {
k uint // k is such that K = 1<<k.
n int // the length of coefficients, n*_W a multiple of K/4.
values []fermat // a slice of K (n+1)-word values
}
// Transform evaluates p at θ^i for i = 0...K-1, where
// θ is a K-th primitive root of unity in Z/(b^n+1)Z.
func (p *poly) Transform(n int) polValues {
k := p.k
inputbits := make([]big.Word, (n+1)<<k)
input := make([]fermat, 1<<k)
// Now computed q(ω^i) for i = 0 ... K-1
valbits := make([]big.Word, (n+1)<<k)
values := make([]fermat, 1<<k)
for i := range values {
input[i] = inputbits[i*(n+1) : (i+1)*(n+1)]
if i < len(p.a) {
copy(input[i], p.a[i])
}
values[i] = fermat(valbits[i*(n+1) : (i+1)*(n+1)])
}
fourier(values, input, false, n, k)
return polValues{k, n, values}
}
// InvTransform reconstructs p (modulo X^K - 1) from its
// values at θ^i for i = 0..K-1.
func (v *polValues) InvTransform() poly {
k, n := v.k, v.n
// Perform an inverse Fourier transform to recover p.
pbits := make([]big.Word, (n+1)<<k)
p := make([]fermat, 1<<k)
for i := range p {
p[i] = fermat(pbits[i*(n+1) : (i+1)*(n+1)])
}
fourier(p, v.values, true, n, k)
// Divide by K, and untwist q to recover p.
u := make(fermat, n+1)
a := make([]nat, 1<<k)
for i := range p {
u.Shift(p[i], -int(k))
copy(p[i], u)
a[i] = nat(p[i])
}
return poly{k: k, m: 0, a: a}
}
// NTransform evaluates p at θω^i for i = 0...K-1, where
// θ is a (2K)-th primitive root of unity in Z/(b^n+1)Z
// and ω = θ².
func (p *poly) NTransform(n int) polValues {
k := p.k
if len(p.a) >= 1<<k {
panic("Transform: len(p.a) >= 1<<k")
}
// θ is represented as a shift.
θshift := (n * _W) >> k
// p(x) = a_0 + a_1 x + ... + a_{K-1} x^(K-1)
// p(θx) = q(x) where
// q(x) = a_0 + θa_1 x + ... + θ^(K-1) a_{K-1} x^(K-1)
//
// Twist p by θ to obtain q.
tbits := make([]big.Word, (n+1)<<k)
twisted := make([]fermat, 1<<k)
src := make(fermat, n+1)
for i := range twisted {
twisted[i] = fermat(tbits[i*(n+1) : (i+1)*(n+1)])
if i < len(p.a) {
for i := range src {
src[i] = 0
}
copy(src, p.a[i])
twisted[i].Shift(src, θshift*i)
}
}
// Now computed q(ω^i) for i = 0 ... K-1
valbits := make([]big.Word, (n+1)<<k)
values := make([]fermat, 1<<k)
for i := range values {
values[i] = fermat(valbits[i*(n+1) : (i+1)*(n+1)])
}
fourier(values, twisted, false, n, k)
return polValues{k, n, values}
}
// InvTransform reconstructs a polynomial from its values at
// roots of x^K+1. The m field of the returned polynomial
// is unspecified.
func (v *polValues) InvNTransform() poly {
k := v.k
n := v.n
θshift := (n * _W) >> k
// Perform an inverse Fourier transform to recover q.
qbits := make([]big.Word, (n+1)<<k)
q := make([]fermat, 1<<k)
for i := range q {
q[i] = fermat(qbits[i*(n+1) : (i+1)*(n+1)])
}
fourier(q, v.values, true, n, k)
// Divide by K, and untwist q to recover p.
u := make(fermat, n+1)
a := make([]nat, 1<<k)
for i := range q {
u.Shift(q[i], -int(k)-i*θshift)
copy(q[i], u)
a[i] = nat(q[i])
}
return poly{k: k, m: 0, a: a}
}
// fourier performs an unnormalized Fourier transform
// of src, a length 1<<k vector of numbers modulo b^n+1
// where b = 1<<_W.
func fourier(dst []fermat, src []fermat, backward bool, n int, k uint) {
var rec func(dst, src []fermat, size uint)
tmp := make(fermat, n+1) // pre-allocate temporary variables.
tmp2 := make(fermat, n+1) // pre-allocate temporary variables.
// The recursion function of the FFT.
// The root of unity used in the transform is ω=1<<(ω2shift/2).
// The source array may use shifted indices (i.e. the i-th
// element is src[i << idxShift]).
rec = func(dst, src []fermat, size uint) {
idxShift := k - size
ω2shift := (4 * n * _W) >> size
if backward {
ω2shift = -ω2shift
}
// Easy cases.
if len(src[0]) != n+1 || len(dst[0]) != n+1 {
panic("len(src[0]) != n+1 || len(dst[0]) != n+1")
}
switch size {
case 0:
copy(dst[0], src[0])
return
case 1:
dst[0].Add(src[0], src[1<<idxShift]) // dst[0] = src[0] + src[1]
dst[1].Sub(src[0], src[1<<idxShift]) // dst[1] = src[0] - src[1]
return
}
// Let P(x) = src[0] + src[1<<idxShift] * x + ... + src[K-1 << idxShift] * x^(K-1)
// The P(x) = Q1(x²) + x*Q2(x²)
// where Q1's coefficients are src with indices shifted by 1
// where Q2's coefficients are src[1<<idxShift:] with indices shifted by 1
// Split destination vectors in halves.
dst1 := dst[:1<<(size-1)]
dst2 := dst[1<<(size-1):]
// Transform Q1 and Q2 in the halves.
rec(dst1, src, size-1)
rec(dst2, src[1<<idxShift:], size-1)
// Reconstruct P's transform from transforms of Q1 and Q2.
// dst[i] is dst1[i] + ω^i * dst2[i]
// dst[i + 1<<(k-1)] is dst1[i] + ω^(i+K/2) * dst2[i]
//
for i := range dst1 {
tmp.ShiftHalf(dst2[i], i*ω2shift, tmp2) // ω^i * dst2[i]
dst2[i].Sub(dst1[i], tmp)
dst1[i].Add(dst1[i], tmp)
}
}
rec(dst, src, k)
}
// Mul returns the pointwise product of p and q.
func (p *polValues) Mul(q *polValues) (r polValues) {
n := p.n
r.k, r.n = p.k, p.n
r.values = make([]fermat, len(p.values))
bits := make([]big.Word, len(p.values)*(n+1))
buf := make(fermat, 8*n)
for i := range r.values {
r.values[i] = bits[i*(n+1) : (i+1)*(n+1)]
z := buf.Mul(p.values[i], q.values[i])
copy(r.values[i], z)
}
return
}

70
vendor/github.com/remyoudompheng/bigfft/scan.go generated vendored Normal file
View File

@@ -0,0 +1,70 @@
package bigfft
import (
"math/big"
)
// FromDecimalString converts the base 10 string
// representation of a natural (non-negative) number
// into a *big.Int.
// Its asymptotic complexity is less than quadratic.
func FromDecimalString(s string) *big.Int {
var sc scanner
z := new(big.Int)
sc.scan(z, s)
return z
}
type scanner struct {
// powers[i] is 10^(2^i * quadraticScanThreshold).
powers []*big.Int
}
func (s *scanner) chunkSize(size int) (int, *big.Int) {
if size <= quadraticScanThreshold {
panic("size < quadraticScanThreshold")
}
pow := uint(0)
for n := size; n > quadraticScanThreshold; n /= 2 {
pow++
}
// threshold * 2^(pow-1) <= size < threshold * 2^pow
return quadraticScanThreshold << (pow - 1), s.power(pow - 1)
}
func (s *scanner) power(k uint) *big.Int {
for i := len(s.powers); i <= int(k); i++ {
z := new(big.Int)
if i == 0 {
if quadraticScanThreshold%14 != 0 {
panic("quadraticScanThreshold % 14 != 0")
}
z.Exp(big.NewInt(1e14), big.NewInt(quadraticScanThreshold/14), nil)
} else {
z.Mul(s.powers[i-1], s.powers[i-1])
}
s.powers = append(s.powers, z)
}
return s.powers[k]
}
func (s *scanner) scan(z *big.Int, str string) {
if len(str) <= quadraticScanThreshold {
z.SetString(str, 10)
return
}
sz, pow := s.chunkSize(len(str))
// Scan the left half.
s.scan(z, str[:len(str)-sz])
// FIXME: reuse temporaries.
left := Mul(z, pow)
// Scan the right half
s.scan(z, str[len(str)-sz:])
z.Add(z, left)
}
// quadraticScanThreshold is the number of digits
// below which big.Int.SetString is more efficient
// than subquadratic algorithms.
// 1232 digits fit in 4096 bits.
const quadraticScanThreshold = 1232

30
vendor/github.com/skip2/go-qrcode/README.md generated vendored
View File

@@ -18,20 +18,26 @@ A command-line tool `qrcode` will be built into `$GOPATH/bin/`.
import qrcode "github.com/skip2/go-qrcode"
- **Create a 256x256 PNG image:**
- **Create a PNG image:**
var png []byte
png, err := qrcode.Encode("https://example.org", qrcode.Medium, 256)
- **Create a 256x256 PNG image and write to a file:**
- **Create a PNG image and write to a file:**
err := qrcode.WriteFile("https://example.org", qrcode.Medium, 256, "qr.png")
- **Create a 256x256 PNG image with custom colors and write to file:**
- **Create a PNG image with custom colors and write to file:**
err := qrcode.WriteColorFile("https://example.org", qrcode.Medium, 256, color.Black, color.White, "qr.png")
All examples use the qrcode.Medium error Recovery Level and create a fixed 256x256px size QR Code. The last function creates a white on black instead of black on white QR Code.
All examples use the qrcode.Medium error Recovery Level and create a fixed
256x256px size QR Code. The last function creates a white on black instead of black
on white QR Code.
The maximum capacity of a QR Code varies according to the content encoded and
the error recovery level. The maximum capacity is 2,953 bytes, 4,296
alphanumeric characters, 7,089 numeric digits, or a combination of these.
## Documentation
@@ -50,13 +56,10 @@ qrcode -- QR Code encoder in Go
https://github.com/skip2/go-qrcode
Flags:
-d disable QR Code border
-i invert black and white
-o string
out PNG file prefix, empty for stdout
out PNG file prefix, empty for stdout
-s int
image size (pixel) (default 256)
-t print as text-art on stdout
image size (pixel) (default 256)
Usage:
1. Arguments except for flags are joined by " " and used to generate QR code.
@@ -68,16 +71,7 @@ Usage:
2. Save to file if "display" not available:
qrcode "homepage: https://github.com/skip2/go-qrcode" > out.png
```
## Maximum capacity
The maximum capacity of a QR Code varies according to the content encoded and the error recovery level. The maximum capacity is 2,953 bytes, 4,296 alphanumeric characters, 7,089 numeric digits, or a combination of these.
## Borderless QR Codes
To aid QR Code reading software, QR codes have a built in whitespace border.
If you know what you're doing, and don't want a border, see https://gist.github.com/skip2/7e3d8a82f5317df9be437f8ec8ec0b7d for how to do it. It's still recommended you include a border manually.
## Links

35
vendor/github.com/skip2/go-qrcode/encoder.go generated vendored
View File

@@ -172,7 +172,7 @@ func (d *dataEncoder) encode(data []byte) (*bitset.Bitset, error) {
}
// Classify data into unoptimised segments.
highestRequiredMode := d.classifyDataModes()
d.classifyDataModes()
// Optimise segments.
err := d.optimiseDataModes()
@@ -180,25 +180,6 @@ func (d *dataEncoder) encode(data []byte) (*bitset.Bitset, error) {
return nil, err
}
// Check if a single byte encoded segment would be more efficient.
optimizedLength := 0
for _, s := range d.optimised {
length, err := d.encodedLength(s.dataMode, len(s.data))
if err != nil {
return nil, err
}
optimizedLength += length
}
singleByteSegmentLength, err := d.encodedLength(highestRequiredMode, len(d.data))
if err != nil {
return nil, err
}
if singleByteSegmentLength <= optimizedLength {
d.optimised = []segment{segment{dataMode: highestRequiredMode, data: d.data}}
}
// Encode data.
encoded := bitset.New()
for _, s := range d.optimised {
@@ -211,15 +192,9 @@ func (d *dataEncoder) encode(data []byte) (*bitset.Bitset, error) {
// classifyDataModes classifies the raw data into unoptimised segments.
// e.g. "123ZZ#!#!" =>
// [numeric, 3, "123"] [alphanumeric, 2, "ZZ"] [byte, 4, "#!#!"].
//
// Returns the highest data mode needed to encode the data. e.g. for a mixed
// numeric/alphanumeric input, the highest is alphanumeric.
//
// dataModeNone < dataModeNumeric < dataModeAlphanumeric < dataModeByte
func (d *dataEncoder) classifyDataModes() dataMode {
func (d *dataEncoder) classifyDataModes() {
var start int
mode := dataModeNone
highestRequiredMode := mode
for i, v := range d.data {
newMode := dataModeNone
@@ -242,15 +217,9 @@ func (d *dataEncoder) classifyDataModes() dataMode {
mode = newMode
}
if newMode > highestRequiredMode {
highestRequiredMode = newMode
}
}
d.actual = append(d.actual, segment{dataMode: mode, data: d.data[start:len(d.data)]})
return highestRequiredMode
}
// optimiseDataModes optimises the list of segments to reduce the overall output

67
vendor/github.com/skip2/go-qrcode/qrcode.go generated vendored
View File

@@ -51,7 +51,6 @@ package qrcode
import (
"bytes"
"errors"
"fmt"
"image"
"image/color"
"image/png"
@@ -136,9 +135,6 @@ type QRCode struct {
ForegroundColor color.Color
BackgroundColor color.Color
// Disable the QR Code border.
DisableBorder bool
encoder *dataEncoder
version qrCodeVersion
@@ -197,16 +193,12 @@ func New(content string, level RecoveryLevel) (*QRCode, error) {
version: *chosenVersion,
}
q.encode(chosenVersion.numTerminatorBitsRequired(encoded.Len()))
return q, nil
}
// NewWithForcedVersion constructs a QRCode of a specific version.
//
// var q *qrcode.QRCode
// q, err := qrcode.NewWithForcedVersion("my content", 25, qrcode.Medium)
//
// An error occurs in case of invalid version.
func NewWithForcedVersion(content string, version int, level RecoveryLevel) (*QRCode, error) {
func newWithForcedVersion(content string, version int, level RecoveryLevel) (*QRCode, error) {
var encoder *dataEncoder
switch {
@@ -217,7 +209,7 @@ func NewWithForcedVersion(content string, version int, level RecoveryLevel) (*QR
case version >= 27 && version <= 40:
encoder = newDataEncoder(dataEncoderType27To40)
default:
return nil, fmt.Errorf("Invalid version %d (expected 1-40 inclusive)", version)
log.Fatalf("Invalid version %d (expected 1-40 inclusive)", version)
}
var encoded *bitset.Bitset
@@ -233,13 +225,6 @@ func NewWithForcedVersion(content string, version int, level RecoveryLevel) (*QR
return nil, errors.New("cannot find QR Code version")
}
if encoded.Len() > chosenVersion.numDataBits() {
return nil, fmt.Errorf("Cannot encode QR code: content too large for fixed size QR Code version %d (encoded length is %d bits, maximum length is %d bits)",
version,
encoded.Len(),
chosenVersion.numDataBits())
}
q := &QRCode{
Content: content,
@@ -254,6 +239,8 @@ func NewWithForcedVersion(content string, version int, level RecoveryLevel) (*QR
version: *chosenVersion,
}
q.encode(chosenVersion.numTerminatorBitsRequired(encoded.Len()))
return q, nil
}
@@ -264,9 +251,6 @@ func NewWithForcedVersion(content string, version int, level RecoveryLevel) (*QR
// The bitmap includes the required "quiet zone" around the QR Code to aid
// decoding.
func (q *QRCode) Bitmap() [][]bool {
// Build QR code.
q.encode()
return q.symbol.bitmap()
}
@@ -284,9 +268,6 @@ func (q *QRCode) Bitmap() [][]bool {
// negative number to increase the scale of the image. e.g. a size of -5 causes
// each module (QR Code "pixel") to be 5px in size.
func (q *QRCode) Image(size int) image.Image {
// Build QR code.
q.encode()
// Minimum pixels (both width and height) required.
realSize := q.symbol.size
@@ -301,7 +282,12 @@ func (q *QRCode) Image(size int) image.Image {
size = realSize
}
// Output image.
// Size of each module drawn.
pixelsPerModule := size / realSize
// Center the symbol within the image.
offset := (size - realSize*pixelsPerModule) / 2
rect := image.Rectangle{Min: image.Point{0, 0}, Max: image.Point{size, size}}
// Saves a few bytes to have them in this order
@@ -309,21 +295,18 @@ func (q *QRCode) Image(size int) image.Image {
img := image.NewPaletted(rect, p)
fgClr := uint8(img.Palette.Index(q.ForegroundColor))
// QR code bitmap.
bitmap := q.symbol.bitmap()
// Map each image pixel to the nearest QR code module.
modulesPerPixel := float64(realSize) / float64(size)
for y := 0; y < size; y++ {
y2 := int(float64(y) * modulesPerPixel)
for x := 0; x < size; x++ {
x2 := int(float64(x) * modulesPerPixel)
v := bitmap[y2][x2]
for y, row := range bitmap {
for x, v := range row {
if v {
pos := img.PixOffset(x, y)
img.Pix[pos] = fgClr
startX := x*pixelsPerModule + offset
startY := y*pixelsPerModule + offset
for i := startX; i < startX+pixelsPerModule; i++ {
for j := startY; j < startY+pixelsPerModule; j++ {
pos := img.PixOffset(i, j)
img.Pix[pos] = fgClr
}
}
}
}
}
@@ -388,9 +371,7 @@ func (q *QRCode) WriteFile(size int, filename string) error {
// encode completes the steps required to encode the QR Code. These include
// adding the terminator bits and padding, splitting the data into blocks and
// applying the error correction, and selecting the best data mask.
func (q *QRCode) encode() {
numTerminatorBits := q.version.numTerminatorBitsRequired(q.data.Len())
func (q *QRCode) encode(numTerminatorBits int) {
q.addTerminatorBits(numTerminatorBits)
q.addPadding()
@@ -403,7 +384,7 @@ func (q *QRCode) encode() {
var s *symbol
var err error
s, err = buildRegularSymbol(q.version, mask, encoded, !q.DisableBorder)
s, err = buildRegularSymbol(q.version, mask, encoded)
if err != nil {
log.Panic(err.Error())

10
vendor/github.com/skip2/go-qrcode/regular_symbol.go generated vendored
View File

@@ -105,19 +105,13 @@ var (
)
func buildRegularSymbol(version qrCodeVersion, mask int,
data *bitset.Bitset, includeQuietZone bool) (*symbol, error) {
quietZoneSize := 0
if includeQuietZone {
quietZoneSize = version.quietZoneSize()
}
data *bitset.Bitset) (*symbol, error) {
m := &regularSymbol{
version: version,
mask: mask,
data: data,
symbol: newSymbol(version.symbolSize(), quietZoneSize),
symbol: newSymbol(version.symbolSize(), version.quietZoneSize()),
size: version.symbolSize(),
}