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osf.go
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osf.go
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// osf is a package for working with Open Screenplay Format 1.2 and 2.0 XML documents.
//
// @author R. S. Doiel, <rsdoiel@gmail.com>
//
// # BSD 2-Clause License
//
// Copyright (c) 2021, R. S. Doiel
// 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.
//
// 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 HOLDER 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.
package osf
import (
"archive/zip"
"bytes"
"encoding/xml"
"io/ioutil"
"path"
"strings"
)
const (
DocString = `<?xml version="1.0" encoding="UTF-8" standalone="no" ?>`
// Style
UnderlineStyle = "1"
ItalicStyle = "1"
BoldStyle = "1"
AllCapsStyle = "1"
StrikethroughStyle = "1"
// Alignments
CenterAlignment = "Center"
LeftAlignment = "Left"
RightAlignment = "Right"
// Types used in ElementSettings and Paragraph elements
GeneralType = "Normal Text"
SceneHeadingType = "Scene Heading"
ActionType = "Action"
CharacterType = "Character"
DialogueType = "Dialogue"
ParentheticalType = "Parenthetical"
TransitionType = "Transition"
CastListType = "Cast List"
ShotType = "Shot"
SingingType = "Singing"
// DynamicLabel types
PageNoType = "Page #"
LastRevisedType = "Last Revised"
// Tabstop types
RightType = "Right"
LeftType = "Left"
)
var (
// MaxLineWidth is the number of characters wide a line can be
// based on a monospace font.
MaxLineWidth = 80
)
// OpenScreenplay holds the root structure for Unmarshaling OSF 1.2 and 2.0
type OpenScreenplay struct {
XMLName xml.Name `xml:"document" json:"-" yaml:"-"`
Type string `xml:"type,attr" json:"document_type" yaml:"document_type"`
Version string `xml:"version,attr" json:"version" yaml:"version"`
Info *Info `xml:"info" json:"info,omitempty" yaml:"info,omitempty"`
Settings *Settings `xml:"settings" json:"settings" yaml:"settings"`
Styles *Styles `xml:"styles,omitempty" json:"styles,omitempty" yaml:"styles,omitempty"`
Paragraphs *Paragraphs `xml:"paragraphs" json:"paragraphs" yaml:"paragraphs"`
Spelling *Spelling `xml:"spelling,omitempty" json:"spelling,omitempty" yaml:"spelling,omitempty"`
Lists *Lists `xml:"lists" json:"lists,omitempty" yaml:"lists,omitempty"`
TitlePage *TitlePage `xml:"titlepage,omitempty" json:"title_page,omitempty" yaml:"title_page,omitempty"`
}
type Info struct {
XMLName xml.Name `xml:"info" json:"-" yaml:"-"`
UUID string `xml:"uuid,attr,omitempty" json:"uuid,omitempty" yaml:"uuid,omitempty"`
Title string `xml:"title,attr,omitempty" json:"title,omitempty" yaml:"title,omitempty"`
TitleFormat string `xml:"title_format,attr,omitempty" json:"title_format,omitempty" yaml:"title_format,omitempty"`
WrittenBy string `xml:"written_by,attr,omitempty" json:"written_by,omitempty" yaml:"written_by,omitempty"`
Copyright string `xml:"copyright,attr,omitempty" json:"copyright,omitempty" yaml:"copyright,omitempty"`
Contact string `xml:"contact,attr,omitempty" json:"contact,omitempty" yaml:"contact,omitempty"`
Drafts string `xml:"drafts,attr,omitempty" json:"drafts,omitempty" yaml:"drafts,omitempty"`
PageCount string `xml:"pagecount,attr,omitempty" json:"page_count,omitempty" yaml:"page_count,omitempty"`
}
type Settings struct {
XMLName xml.Name `xml:"settings" json:"-" yaml:"-"`
PageWidth string `xml:"page_width,attr,omitempty" json:"page_width,omitempty" yaml:"page_width,omitempty"`
PageHeight string `xml:"page_height,attr,omitempty" json:"page_height,omitempty" yaml:"page_height,omitempty"`
MarginTop string `xml:"margin_top,attr,omitempty" json:"margin_top,omitempty" yaml:"margin_top,omitempty"`
MarginBottom string `xml:"margin_bottom,attr,omitempty" json:"margin_bottom,omitempty" yaml:"margin_bottom,omitempty"`
MarginLeft string `xml:"margin_left,attr,omitempty" json:"margin_left,omitempty" yaml:"margin_left,omitempty"`
MarginRight string `xml:"margin_right,attr,omitempty" json:"margin_right,omitempty" yaml:"margin_right,omitempty"`
NormalLinesPerInch string `xml:"normal_linesperinch,attr,omitempty" json:"normal_lines_per_inch,omitempty" yaml:"normal_lines_per_inch,omitempty"`
DialogueContinues string `xml:"dialogue_continues,attr,omitempty" json:"dialog_continues,omitempty" yaml:"dialog_continues,omitempty"`
ContText string `xml:"cont_text,attr,omitempty" json:"cont_text,omitempty" yaml:"cont_text,omitempty"`
MoreText string `xml:"more_text,attr,omitempty" json:"more_text,omitempty" yaml:"more_text,omitempty"`
ContinuedText string `xml:"continued_text,attr,omitempty" json:"continued_text,omitempty" yaml:"continued_text,omitempty"`
OmittedText string `xml:"omitted_text,attr,omitempty" json:"omitted_text,omitempty" yaml:"omitted_text,omitempty"`
PageNumberFormat string `xml:"pagenumber_format,attr,omitempty" json:"page_number_format,omitempty" yaml:"page_number_format,omitempty"`
PageNumberStart string `xml:"pagenumber_start,attr,omitempty" json:"page_number_start,omitempty" yaml:"page_number_start,omitempty"`
PageNumberFirst string `xml:"pagenumber_first,attr,omitempty" json:"page_number_first,omitempty" yaml:"page_number_first,omitempty"`
Revision string `xml:"revision,attr,omitempty" json:"revision,omitempty" yaml:"revision,omitempty"`
ShowRevisions string `xml:"show_revisions,attr,omitempty" json:"show_revisions,omitempty" yaml:"show_reviserions,omitempty"`
SceneNumbering string `xml:"scene_numbering,attr,omitempty" json:"scene_numbering,omitempty" yaml:"scene_numbering,omitempty"`
ScenesLocked string `xml:"scenes_locked,attr,omitempty" json:"scenes_locked,omitempty" yaml:"scenes_locked,omitempty"`
PageNumbering string `xml:"page_numbering,attr,omitempty" json:"page_numbering,omitempty" yaml:"page_numbering,omitempty"`
PagesLocked string `xml:"pages_locked,attr,omitempty" json:"pages_locked,omitempty" yaml:"pages_locked,omitempty"`
}
type Styles struct {
XMLName xml.Name `xml:"styles" json:"styles" yaml:"styles"`
Style []*Style
}
type Style struct {
XMLName xml.Name `xml:"style" json:"-" yaml:"-"`
Name string `xml:"name,attr,omitempty" json:"name,omitempty" yaml:"name,omitempty"`
Builtin string `xml:"builtin,attr,omitempty" json:"builtin,omitempty" yaml:"builtin,omitempty"`
BuiltinIndex string `xml:"builtin_index,attr,omitempty" json:"builtin_index,omitempty" yaml:"builtin_index,omitempty"`
Label string `xml:"label,attr,omitempty" json:"label,omitempty" yaml:"label,omitempty"`
BaseStyleName string `xml:"basestylename,attr,omitempty" json:"basestylename,omitempty" yaml:"basestylename,omitempty"`
StyleEnter string `xml:"style_enter,attr,omitempty" json:"style_enter,omitempty" yaml:"style_enter,omitempty"`
Font string `xml:"font,attr,omitempty" json:"font,omitempty" yaml:"font,omitempty"`
Size string `xml:"size,attr,omitempty" json:"size,omitempty" yaml:"size,omitempty"`
SpaceBefore string `xml:"spacebefore,attr,omitempty" json:"spacebefore,omitempty" yaml:"spacebefore,omitempty"`
StyleTab string `xml:"style_tab,attr,omitempty" json:"style_tab,omitempty" yaml:"style_tab,omitempty"`
KeepWithNext string `xml:"keepwithnext,attr,omitempty" json:"keepwithnext,omitempty" yaml:"keepwithnext,omitempty"`
Effects string `xml:"effects,attr,omitempty" json:"effects,omitempty" yaml:"effects,omitempty"`
LeftIdent string `xml:"leftindent,attr,omitempty" json:"leftindent,omitempty" yaml:"leftindent,omitempty"`
RightIdent string `xml:"rightindent,attr,omitempty" json:"rightindent,omitempty" yaml:"rightindent,omitempty"`
Align string `xml:"align,attr,omitempty" json:"align,omitempty" yaml:"align,omitempty"`
}
type Paragraphs struct {
XMLName xml.Name `xml:"paragraphs" json:"paragraphs" yaml:"paragraphs"`
Para []*Para `xml:"para,omitempty" json:"para,omitempty" yaml:"para,omitempty"`
}
type Para struct {
XMLName xml.Name `xml:"para" json:"-" yaml:"-"`
PageNumber string `xml:"page_number,attr,omitempty" json:"page_number,omitempty" yaml:"page_number,omitempty"`
Bookmark string `xml:"bookmark,attr,omitempty" json:"bookmark,omitempty" yaml:"bookmark,omitempty"`
Style *Style `xml:"style,omitempty" json:"style,omitempty" yaml:"style,omitempty"`
Text []*Text `xml:"text,omitempty" json:"text,omitempty" yaml:"text,omitempty"`
Marks *Marks `xml:"marks,omitempty" json:"marks,omitempty" yaml:"marks,omitempty"`
}
type Text struct {
XMLName xml.Name `xml:"text" json:"-" yaml:"-"`
Underline string `xml:"underline,attr,omitempty" json:"underline,omitempty" yaml:"underline,omitempty"`
Italic string `xml:"italic,attr,omitempty" json:"italic,omitempty" yaml:"italic,omitempty"`
Bold string `xml:"bold,attr,omitempty" json:"bold,omitempty" yaml:"bold,omitempty"`
Strikethrough string `xml:"strikethrough,attr,omitempty" json:"strikethrough,omitempty" yaml:"strikethrough,omitempty"`
AllCaps string `xml:"allcaps,attr,omitempty" json:"allcaps,omitempty" yaml:"allcaps,omitempty"`
InnerText string `xml:",chardata" json:"inner_text" yaml:"inner_text"`
}
type Marks struct {
XMLName xml.Name `xml:"marks" json:"marks" yaml:"marks"`
Mark []*Mark `xml:"mark,omitempty" json:"mark,omitempty" yaml:"mark,omitempty"`
}
type Mark struct {
XMLName xml.Name `xml:"mark" json:"-" yaml:"-"`
At string `xml:"at,attr,omitempty" json:"at,omitempty" yaml:"at,omitempty"`
Revision string `xml:"revision,attr,omitempty" json:"revision,omitempty" yaml:"revision,omitempty"`
}
type Spelling struct {
XMLName xml.Name `xml:"spelling" json:"-" yaml:"-"`
Language string `xml:"language,attr,omitempty" json:"language,omitempty" yaml:"language,omitempty"`
UserDictionary *UserDictionary `xml:"user_dictionary,omitempty" json:"user_dictionary,omitempty" yaml:"user_dictionary,omitempty"`
}
type UserDictionary struct {
XMLName xml.Name `xml:"user_dictionary" json:"-" yaml:"-"`
Entry []*Entry `xml:"entry,omitempty" json:"entry,omitempty" yaml:"entry,omitempty"`
}
type Entry struct {
XMLName xml.Name `xml:"entry" json:"-" yaml:"-"`
Word string `xml:"work,attr,omitempty" json:"word,omitempty" yaml:"word,omitempty"`
}
type Lists struct {
XMLName xml.Name `xml:"lists" json:"lists" yaml:"lists"`
Characters *Characters `xml:"characters,omitempty" json:"characters,omitempty" yaml:"characters,omitempty"`
Locations *Locations `xml:"locations,omitempty" json:"locations,omitempty" yaml:"locations,omitempty"`
SceneIntros *SceneIntros `xml:"scene_intros,omitempty" json:"scene_intros,omitempty" yaml:"scene_intros,omitempty"`
SceneTimes *SceneTimes `xml:"scene_times,omitempty" json:"scene_times,omitempty" yaml:"scene_times,omitempty"`
Extensions *Extensions `xml:"extensions,omitempty" json:"extensions,omitempty" yaml:"extensions,omitempty"`
Transitions *Transitions `xml:"transitions,omitempty" json:"transitions,omitempty" yaml:"transitions,omitempty"`
RevisionColors *RevisionColors `xml:"revision_colors,omitempty" json:"revision_colors,omitempty" yaml:"revision_colors,omitempty"`
TagCategories *TagCategories `xml:"tag_categories,omitempty" json:"tag_categories,omitempty" yaml:"tag_categories,omitempty"`
}
type Characters struct {
XMLName xml.Name `xml:"characters" json:"characters" yaml:"characters"`
Character []*Character `xml:"character,omitempty" json:"character,omitempty" yaml:"character,omitempty"`
}
type Character struct {
XMLName xml.Name `xml:"character" json:"-" yaml:"-"`
Name string `xml:"name,attr,omitempty" json:"name,omitempty" yaml:"name,omitempty"`
}
type Locations struct {
XMLName xml.Name `xml:"locations" json:"locations" yaml:"locations"`
Location []*Location `xml:"location,omitempty" json:"location,omitempty" yaml:"location,omitempty"`
}
type Location struct {
XMLName xml.Name `xml:"location" json:"-" yaml:"-"`
Name string `xml:"name,attr,omitempty" json:"name,omitempty" yaml:"name,omitempty"`
}
type SceneIntros struct {
XMLName xml.Name `xml:"scene_intros" json:"scene_intros" yaml:"scene_intros,omitempty"`
SceneIntro []*SceneIntro `xml:"scene_intro,omitempty" json:"scene_intro,omitempty" yaml:"screne_intro"`
}
type SceneIntro struct {
XMLName xml.Name `xml:"scene_intro" json:"-" yaml:"-"`
Name string `xml:"name,attr,omitempty" json:"name,omitempty" yaml:"name,omitempty"`
}
type SceneTimes struct {
XMLName xml.Name `xml:"scene_times" json:"scene_times" yaml:"scene_times"`
SceneTime []*SceneTime `xml:"scene_time,omitempty" json:"scene_time,omitempty" yaml:"scene_time,omitempty"`
}
type SceneTime struct {
XMLName xml.Name `xml:"scene_time" json:"-" yaml:"-"`
Name string `xml:"name,attr,omitempty" json:"name,omitempty" yaml:"name,omitempty"`
}
type Extensions struct {
XMLName xml.Name `xml:"extensions" json:"extentions" yaml:"extentions"`
Extension []*Extension `xml:"extension,omitempty" json:"extension,omitempty" yaml:"extension,omitempty"`
}
type Extension struct {
XMLName xml.Name `xml:"extension" json:"-" yaml:"-"`
Name string `xml:"name,attr,omitempty" json:"name,omitempty" yaml:"name,omitempty"`
}
type Transitions struct {
XMLName xml.Name `xml:"transitions" json:"transitions" yaml:"transitions"`
Transition []*Transition `xml:"transition,omitempty" json:"transition,omitempty" yaml:"transition,omitempty"`
}
type Transition struct {
XMLName xml.Name `xml:"transition" json:"-" yaml:"-"`
Name string `xml:"name,attr,omitempty" json:"name,omitempty" yaml:"name,omitempty"`
}
type RevisionColors struct {
XMLName xml.Name `xml:"revision_colors" json:"revision_colors" yaml:"revision_colors,omitempty"`
RevisionColor []*RevisionColor `xml:"revision_color,omitempty" json:"revision_color,omitempty" yaml:"revision_color,omitempty"`
}
type RevisionColor struct {
XMLName xml.Name `xml:"revision_color" json:"-" yaml:"-"`
Name string `xml:"name,attr,omitempty" json:"name,omitempty" yaml:"name,omitempty"`
Index string `xml:"index,attr,omitempty" json:"index,omitempty" yaml:"index,omitempty"`
ColorName string `xml:"color_name,attr,omitempty" json:"color_name,omitempty" yaml:"color_name,omitempty"`
ColorIndex string `xml:"color_index,attr,omitempty" json:"color_index,omitempty" yaml:"color_index,omitempty"`
}
type TagCategories struct {
XMLName xml.Name `xml:"tag_categories" json:"tag_categories" yaml:"tag_categories"`
TagCategory []*TagCategory `xml:"tag_category,omitempty" json:"tag_category,omitempty" yaml:"tag_category,omitempty"`
}
type TagCategory struct {
XMLName xml.Name `xml:"tag_category" json:"-" yaml:"-"`
Name string `xml:"name,attr,omitempty" json:"name,omitempty" yaml:"name,omitempty"`
}
type TitlePage struct {
XMLName xml.Name `xml:"titlepage" json:"titlepage" yaml:"titlepage"`
Para []*Para `xml:"para,omitempty" json:"para,omitempty" yaml:"para,omitempty"`
}
func (text *Text) String() string {
if text != nil {
s := text.InnerText
if strings.TrimSpace(s) != "" {
if text.Underline == UnderlineStyle {
s = "_" + s + "_"
}
if text.Italic == ItalicStyle {
s = "*" + s + "*"
}
if text.Bold == BoldStyle {
s = "**" + s + "**"
}
if text.AllCaps == AllCapsStyle {
s = strings.ToUpper(s)
}
if text.Strikethrough == StrikethroughStyle {
s = "~~" + s + "~~"
}
}
return s
}
return ""
}
func (para *Para) String() string {
if para != nil {
src := []string{}
for _, text := range para.Text {
s := text.String()
if para.Style != nil {
switch para.Style.BaseStyleName {
case GeneralType:
//s = s + "\n"
case SceneHeadingType:
s = strings.ToUpper(s) + "\n"
case ActionType:
s = s + "\n"
case CharacterType:
s = strings.ToUpper(s)
case DialogueType:
s = s + "\n"
case ParentheticalType:
if strings.HasPrefix(s, "(") == false && strings.HasSuffix(s, ")") == false {
s = "(" + s + ")"
}
case TransitionType:
s = strings.ToUpper(s) + "\n"
case SingingType:
s = "~" + s
}
}
//FIXME: Apply formatting, FF and LF as needed
src = append(src, s)
}
return strings.Join(src, "") + "\n"
}
return ""
}
func (paragraphs *Paragraphs) String() string {
if paragraphs != nil {
src := []string{}
for _, para := range paragraphs.Para {
s := para.String()
// FIXME: Apply formatting, FF, LF as needed
src = append(src, s)
}
return strings.Join(src, "")
}
return ""
}
func (tp *TitlePage) String() string {
if tp != nil {
src := []string{}
for _, para := range tp.Para {
s := para.String()
//FIXME: Applyformatting, FF, LF as needed
src = append(src, s)
}
return strings.Join(src, "")
}
return ""
}
func (doc *OpenScreenplay) String() string {
if doc != nil {
src := []string{}
if doc.TitlePage != nil {
src = append(src, doc.TitlePage.String())
}
if doc.Paragraphs != nil {
src = append(src, doc.Paragraphs.String())
}
return strings.Join(src, "")
}
return ""
}
// Parse takes a byte array and returns a OpenScreenplay object and error
func Parse(src []byte) (*OpenScreenplay, error) {
doc := new(OpenScreenplay)
err := xml.Unmarshal(src, &doc)
return doc, err
}
// ParseFile reads in *.osf and *.fadin file and and returns
// a OpenScreenplay object and error
func ParseFile(fname string) (*OpenScreenplay, error) {
var (
src []byte
ext string
err error
)
src = []byte{}
ext = path.Ext(fname)
if strings.ToLower(ext) == ".fadein" {
// Open a zip archive for reading.
r, err := zip.OpenReader(fname)
if err != nil {
return nil, err
}
defer r.Close()
// Iterate through the files in the archive,
// printing some of their contents.
for _, f := range r.File {
if f.Name == "document.xml" {
rc, err := f.Open()
if err != nil {
return nil, err
}
src, err = ioutil.ReadAll(rc)
if err != nil {
return nil, err
}
rc.Close()
break
}
}
} else {
src, err = ioutil.ReadFile(fname)
if err != nil {
return nil, err
}
}
//FIXME: Need to sniff version, 1.2 and 2.0 probably can use the same structs but
// 2.1 uses camel case for element names
return Parse(src)
}
// NewOpenScreenplay20 creates a new OpenScreenplay document set to version 2.0
func NewOpenScreenplay20() *OpenScreenplay {
doc := new(OpenScreenplay)
doc.Version = "20"
doc.Type = "Open Screenplay Format document"
return doc
}
// CleanupSelfClosingElements changes something like <styles></styles> to <styles/>
func CleanupSelfClosingElements(src []byte) []byte {
for _, elem := range []string{"info", "settings", "styles", "style", "mark", "text", "entry", "character", "location", "scene_time", "extension", "revision_color", "tag_category", "transition", "spelling", "user_dictionary", "paragraphs", "para", "locations"} {
src = bytes.Replace(src, []byte("></"+elem+">"), []byte("/>"), -1)
}
for _, elem := range []string{"titlepage"} {
src = bytes.Replace(src, []byte("<"+elem+"></"+elem+">"), []byte("<"+elem+"/>"), -1)
}
return src
}
// ToXML takes a OpenScreenplay struct and renders XML
func (document *OpenScreenplay) ToXML() ([]byte, error) {
src, err := xml.MarshalIndent(document, "", " ")
if err != nil {
return nil, err
}
return CleanupSelfClosingElements(src), nil
}