func ExampleCreate() {
anchorName := sanitized_anchor_name.Create("This is a header")
fmt.Println(anchorName)
// Output:
// this-is-a-header
}
func (p *parser) prefixHeader(out *bytes.Buffer, data []byte) int {
level := 0
for level < 6 && data[level] == '#' {
level++
}
i := skipChar(data, level, ' ')
end := skipUntilChar(data, i, '\n')
skip := end
id := ""
if p.flags&EXTENSION_HEADER_IDS != 0 {
j, k := 0, 0
// find start/end of header id
for j = i; j < end-1 && (data[j] != '{' || data[j+1] != '#'); j++ {
}
for k = j + 1; k < end && data[k] != '}'; k++ {
}
// extract header id iff found
if j < end && k < end {
id = string(data[j+2 : k])
end = j
skip = k + 1
for end > 0 && data[end-1] == ' ' {
end--
}
}
}
for end > 0 && data[end-1] == '#' {
if isBackslashEscaped(data, end-1) {
break
}
end--
}
for end > 0 && data[end-1] == ' ' {
end--
}
if end > i {
if id == "" && p.flags&EXTENSION_AUTO_HEADER_IDS != 0 {
id = sanitized_anchor_name.Create(string(data[i:end]))
}
work := func() bool {
p.inline(out, data[i:end])
return true
}
p.r.Header(out, work, level, id)
}
return skip
}
// Update or post.Update updates parameter "entry" with data given in parameter "post".
// Requires active session cookie.
// Returns updated Post object and an error object.
func (post Post) Update(entry Post) (Post, error) {
entry.ID = post.ID
entry.Content = string(blackfriday.MarkdownCommon([]byte(entry.Markdown)))
entry.Excerpt = excerpt.Make(entry.Content, 15)
entry.Slug = slug.Create(entry.Title)
entry.Updated = time.Now().UTC().Round(time.Second).Unix()
_, err := db.NamedExec(
"UPDATE posts SET title = :title, content = :content, markdown = :markdown, slug = :slug, excerpt = :excerpt, published = :published, updated = :updated WHERE id = :id",
entry)
if err != nil {
return post, err
}
entry.Viewcount = post.Viewcount
entry.Created = post.Created
entry.TimeOffset = post.TimeOffset
entry.Author = post.Author
return entry, nil
}
func testCreatePost(t *testing.T, owner int64, title string, markdown string) {
var u User
u.ID = owner
var p Post
p.ID = post.ID + 1
p.Title = title
p.Markdown = markdown
p.Content = string(blackfriday.MarkdownCommon([]byte(markdown)))
p.Slug = slug.Create(p.Title)
p.Author = u.ID
p.Excerpt = excerpt.Make(p.Content, 15)
p.Viewcount = 0
payload, err := json.Marshal(p)
if err != nil {
panic(err)
}
testCreatePostRequest(t, payload, p)
}
func ExampleCreate_two() {
fmt.Println(sanitized_anchor_name.Create("This is a header"))
fmt.Println(sanitized_anchor_name.Create("This is also a header"))
fmt.Println(sanitized_anchor_name.Create("main.go"))
fmt.Println(sanitized_anchor_name.Create("Article 123"))
fmt.Println(sanitized_anchor_name.Create("<- Let's try this, shall we?"))
fmt.Printf("%q\n", sanitized_anchor_name.Create(" "))
fmt.Println(sanitized_anchor_name.Create("Hello, 世界"))
// Output:
// this-is-a-header
// this-is-also-a-header
// main-go
// article-123
// let-s-try-this-shall-we
// ""
// hello-世界
}
// Insert or post.Insert inserts Post object into database.
// Requires active session cookie
// Fills post.Author, post.Created, post.Edited, post.Excerpt, post.Slug and post.Published automatically.
// Returns Post and error object.
func (post Post) Insert(user User) (Post, error) {
_, offset, err := timezone.Offset(user.Location)
if err != nil {
return post, err
}
post.TimeOffset = offset
post.Content = string(blackfriday.MarkdownCommon([]byte(post.Markdown)))
post.Author = user.ID
post.Created = time.Now().UTC().Round(time.Second).Unix()
post.Updated = post.Created
post.Excerpt = excerpt.Make(post.Content, 15)
post.Slug = slug.Create(post.Title)
post.Published = false
post.Viewcount = 0
_, err = db.NamedExec(`INSERT INTO posts (title, content, markdown, slug, author, excerpt, viewcount, published, created, updated, timeoffset)
VALUES (:title, :content, :markdown, :slug, :author, :excerpt, :viewcount, :published, :created, :updated, :timeoffset)`, post)
if err != nil {
return post, err
}
return post, nil
}
// Update or post.Update updates parameter "entry" with data given in parameter "post".
// Requires active session cookie.
// Returns updated Post object and an error object.
func (post Post) Update(s sessions.Session, entry Post) (Post, error) {
var user User
user, err := user.Session(s)
if err != nil {
return post, err
}
if post.Author == user.ID {
entry.Content = string(blackfriday.MarkdownCommon([]byte(entry.Markdown)))
entry.Excerpt = Excerpt(entry.Content)
entry.Slug = slug.Create(entry.Title)
entry.Updated = time.Now().UTC().Unix()
query := connection.Gorm.Where(&Post{Slug: post.Slug, Author: user.ID}).First(&post).Updates(entry)
if query.Error != nil {
if query.Error == gorm.RecordNotFound {
return post, errors.New("not found")
}
return post, query.Error
}
return post, nil
}
return post, errors.New("unauthorized")
}
func setup() {
headers = document.Body().GetElementsByTagName("h2")
if len(headers) == 0 {
return
}
overlay := document.CreateElement("div")
overlay.SetID("toc-overlay")
results = document.CreateElement("div").(*dom.HTMLDivElement)
results.SetID("toc-results")
for _, header := range headers {
element := document.CreateElement("div").(*dom.HTMLDivElement)
element.Class().Add("toc-entry")
element.SetTextContent(header.TextContent())
href := "#" + sanitized_anchor_name.Create(header.TextContent())
target := header.(dom.HTMLElement)
element.AddEventListener("click", false, func(event dom.Event) {
//dom.GetWindow().History().ReplaceState(nil, nil, href)
js.Global.Get("window").Get("history").Call("replaceState", nil, nil, href)
windowHalfHeight := dom.GetWindow().InnerHeight() * 2 / 5
dom.GetWindow().ScrollTo(dom.GetWindow().ScrollX(), int(target.OffsetTop()+target.OffsetHeight())-windowHalfHeight)
})
results.AppendChild(element)
}
overlay.AppendChild(results)
document.Body().AppendChild(overlay)
dom.GetWindow().AddEventListener("scroll", false, func(event dom.Event) {
updateToc()
})
updateToc()
}
// Insert or post.Insert inserts Post object into database.
// Requires active session cookie
// Fills post.Author, post.Created, post.Edited, post.Excerpt, post.Slug and post.Published automatically.
// Returns Post and error object.
func (post Post) Insert(s sessions.Session) (Post, error) {
var user User
user, err := user.Session(s)
if err != nil {
return post, err
}
timeOffset, err := TimeOffset(user.Location)
if err != nil {
return post, err
}
post.TimeOffset = timeOffset
post.Content = string(blackfriday.MarkdownCommon([]byte(post.Markdown)))
post.Author = user.ID
post.Created = time.Now().UTC().Unix()
post.Updated = post.Created
post.Excerpt = Excerpt(post.Content)
post.Slug = slug.Create(post.Title)
post.Published = false
query := connection.Gorm.Create(&post)
if query.Error != nil {
return post, query.Error
}
return post, nil
}
func (p *parser) paragraph(out *bytes.Buffer, data []byte) int {
// prev: index of 1st char of previous line
// line: index of 1st char of current line
// i: index of cursor/end of current line
var prev, line, i int
// keep going until we find something to mark the end of the paragraph
for i < len(data) {
// mark the beginning of the current line
prev = line
current := data[i:]
line = i
// did we find a blank line marking the end of the paragraph?
if n := p.isEmpty(current); n > 0 {
p.renderParagraph(out, data[:i])
return i + n
}
// an underline under some text marks a header, so our paragraph ended on prev line
if i > 0 {
if level := p.isUnderlinedHeader(current); level > 0 {
// render the paragraph
p.renderParagraph(out, data[:prev])
// ignore leading and trailing whitespace
eol := i - 1
for prev < eol && data[prev] == ' ' {
prev++
}
for eol > prev && data[eol-1] == ' ' {
eol--
}
// render the header
// this ugly double closure avoids forcing variables onto the heap
work := func(o *bytes.Buffer, pp *parser, d []byte) func() bool {
return func() bool {
pp.inline(o, d)
return true
}
}(out, p, data[prev:eol])
id := ""
if p.flags&EXTENSION_AUTO_HEADER_IDS != 0 {
id = sanitized_anchor_name.Create(string(data[prev:eol]))
}
p.r.Header(out, work, level, id)
// find the end of the underline
for data[i] != '\n' {
i++
}
return i
}
}
// if the next line starts a block of HTML, then the paragraph ends here
if p.flags&EXTENSION_LAX_HTML_BLOCKS != 0 {
if data[i] == '<' && p.html(out, current, false) > 0 {
// rewind to before the HTML block
p.renderParagraph(out, data[:i])
return i
}
}
// if there's a prefixed header or a horizontal rule after this, paragraph is over
if p.isPrefixHeader(current) || p.isHRule(current) {
p.renderParagraph(out, data[:i])
return i
}
// if there's a list after this, paragraph is over
if p.flags&EXTENSION_NO_EMPTY_LINE_BEFORE_BLOCK != 0 {
if p.uliPrefix(current) != 0 ||
p.oliPrefix(current) != 0 ||
p.quotePrefix(current) != 0 ||
p.codePrefix(current) != 0 {
p.renderParagraph(out, data[:i])
return i
}
}
// otherwise, scan to the beginning of the next line
for data[i] != '\n' {
i++
}
i++
}
p.renderParagraph(out, data[:i])
return i
}
