blocks

package
v2.1.3 Latest Latest
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 Go to latest Published: Oct 1, 2021 License: Apache-2.0 Imports: 5 Imported by: 1

Documentation

Overview

Package blocks provides some of the Mycomarkup's blocks.

Index

Constants

This section is empty.

Variables

View Source 
var SpanTable = []SpanTableEntry{
	{SpanItalic, "//", "em"},
	{SpanBold, "**", "strong"},
	{SpanMono, "`", "code"},
	{SpanSuper, "^^", "sup"},
	{SpanSub, ",,", "sub"},
	{SpanMark, "++", "mark"},
	{SpanStrike, "~~", "s"},
	{SpanUnderline, "__", "u"},
}

SpanTable is a table for easier span lexing, its entries are also Span too.

Functions

func CleanStyleState 

func CleanStyleState() map[SpanKind]bool

CleanStyleState returns a map where keys are SpanKind representing inline style and values are booleans. Mutate this map to keep track of active and inactive styles.

Values: `false`: the style is not active `true`: the style is active

For example, for a Formatted line like that: 

**Welcome** to //California

`CleanStyleState()SpanItalic == true` at the end of string.

func TagFromState 

func TagFromState(stt SpanKind, tagState map[SpanKind]bool) string

TagFromState returns an appropriate tag half (<left> or </right>) depending on tagState and also mutates it.

TODO: get rid of.

Types

type Block 

type Block interface {

	// ID returns an id for the block. It should be unique when possible. The block should increment a value in the counter depending on its type.
	ID(counter *IDCounter) string
	// contains filtered or unexported methods
}

Block is a unit of Mycomarkup. It is somewhat analogous to HTML's tags.

type CodeBlock 

type CodeBlock struct {
	// contains filtered or unexported fields
}

CodeBlock represents a block of preformatted text.

func MakeCodeBlock 

func MakeCodeBlock(language, contents string) CodeBlock

MakeCodeBlock returns a code block with the given language and contents.

func (*CodeBlock) AddLine 

func (cb *CodeBlock) AddLine(line string)

AddLine adds a line to the code block's contents. The line should be without line breaks.

func (*CodeBlock) Contents 

func (cb *CodeBlock) Contents() string

Contents returns the code block's contents.

func (CodeBlock) ID 

func (cb CodeBlock) ID(counter *IDCounter) string

ID returns the codeblock's id which is codeblock- and a number.

func (*CodeBlock) Language 

func (cb *CodeBlock) Language() string

Language returns what kind of formal language the code block is written in. It returns "plain" if the language is not specified.

type Formatted 

type Formatted struct {
	// HyphaName is the name of the hypha that contains the Formatted text.
	HyphaName string
	// Lines are parsed lines of the Formatted text.
	Lines [][]Span
}

Formatted is a piece of formatted text. It is always part of a bigger block, such as Paragraph.

func (*Formatted) AddLine 

func (p *Formatted) AddLine(line []Span)

AddLine stores an additional line of the formatted text.

func (Formatted) ID 

func (p Formatted) ID(_ *IDCounter) string

ID returns an empty string because Formatted is always part of a bigger block.

type Heading 

type Heading struct {
	// Level is a number between 1 and 6.
	Level    uint
	Contents Formatted
	Src      string
}

Heading is a formatted heading in the document.

func (*Heading) GetContents 

func (h *Heading) GetContents() Formatted

GetContents returns the heading's contents.

func (Heading) ID 

func (h Heading) ID(_ *IDCounter) string

ID returns the heading's id which is basically a stripped version of its contents. See util.StringID.

type HorizontalLine 

type HorizontalLine struct {
	// contains filtered or unexported fields
}

HorizontalLine represents the horizontal line block.

In Mycomarkup it is written like that: 

----

func MakeHorizontalLine 

func MakeHorizontalLine(line string) HorizontalLine

MakeHorizontalLine parses the horizontal line block on the given text line and returns it.

func (HorizontalLine) ID 

func (h HorizontalLine) ID(counter *IDCounter) string

ID returns the line's id. By default, it is hr- and a number. If the line was written like that: 

----id

, the specified id is returned instead.

type IDCounter 

type IDCounter struct {
	// In some cases using the results of counting is not needed because the IDs are not needed themselves. This variable is true when this is the case.
	ShouldUseResults bool
	// contains filtered or unexported fields
}

IDCounter is a struct with counters of how many times some blocks have appeared. Block's ID depends on these counters.

func (IDCounter) UnusableCopy 

func (c IDCounter) UnusableCopy() *IDCounter

UnusableCopy returns a copy of the counter with ShouldUseResults set to false.

type Img 

type Img struct {
	// All entries
	Entries   []ImgEntry
	HyphaName string
}

Img is an image gallery, consisting of zero or more images.

func (*Img) HasOneImage 

func (img *Img) HasOneImage() bool

HasOneImage returns true if img has exactly one image. The image may have a description.

func (Img) ID 

func (img Img) ID(counter *IDCounter) string

ID returns the gallery's id which is img- and a number. 

func (img *Img) MarkExistenceOfSrcLinks()

MarkExistenceOfSrcLinks effectively checks if the links in the gallery are blue or red.

type ImgEntry 

type ImgEntry struct {
	Srclink     *links.Link
	HyphaName   string
	Width       string
	Height      string
	Description string // TODO: change to Formatted type.
}

ImgEntry is an entry of an image gallery. It can only be nested into Img.

func (*ImgEntry) HeightAttributeHTML added in v2.1.0 

func (entry *ImgEntry) HeightAttributeHTML() string

HeightAttributeHTML returns either an empty string or the height attribute for the image, depending on what has been written in the markup.

func (ImgEntry) ID 

func (entry ImgEntry) ID(_ *IDCounter) string

ID returns an empty string because images do not have ids. Image galleries do have them, by the way, see Img.

func (*ImgEntry) WidthAttributeHTML added in v2.1.0 

func (entry *ImgEntry) WidthAttributeHTML() string

WidthAttributeHTML returns either an empty string or the width attribute for the image, depending on what has been written in the markup. 

type InlineLink struct {
	*links.Link
}

InlineLink is a link that is part of a Formatted text. Basically a wrapper over links.Link.

func (InlineLink) Kind 

func (il InlineLink) Kind() SpanKind

Kind returns SpanLink.

type InlineText 

type InlineText struct {
	Contents string
}

InlineText is the most wholesome thing in Mycomarkup, just a bunch of characters with no formatting or any other special meaning.

func (InlineText) Kind 

func (it InlineText) Kind() SpanKind

Kind returns SpanText.

type LaunchPad 

type LaunchPad struct {
	Rockets []RocketLink
}

LaunchPad is a container for RocketLinks.

func MakeLaunchPad 

func MakeLaunchPad() LaunchPad

MakeLaunchPad returns an empty launchpad. Add rocket links there using AddRocket.

func (*LaunchPad) AddRocket 

func (lp *LaunchPad) AddRocket(rl RocketLink)

AddRocket stores the rocket link in the launchpad.

func (*LaunchPad) ColorRockets 

func (lp *LaunchPad) ColorRockets()

ColorRockets marks links to existing hyphae as existing.

func (LaunchPad) ID 

func (lp LaunchPad) ID(counter *IDCounter) string

ID returns the launchpad's id which is rocket- and a number. Note that it does not say launchpad.

type List 

type List struct {
	// Items are the entries of the List. There should be at least one.
	Items []ListItem
	// Marker is the type of the list. All entries have the same type. See SameAs for information about same types.
	Marker ListMarker
}

List is the block representing a set of related elements. It must be the same as all ListItem.Marker.

func (List) ID 

func (l List) ID(counter *IDCounter) string

ID returns this list's id. It is list- and the list's number.

type ListItem 

type ListItem struct {
	Marker ListMarker
	// Level is equal to amount of asterisks.
	//     *    -> Level = 1
	//     **.  -> Level = 2
	Level uint
	// Contents are Mycomarkup blocks contained in this list item.
	Contents []Block
}

ListItem is an entry in a List.

func (ListItem) ID 

func (l ListItem) ID(_ *IDCounter) string

ID returns an empty string because list items don't have ids.

type ListMarker 

type ListMarker int

ListMarker is the type of a ListItem or a List. 

const (
	// MarkerUnordered is for bullets like * (no point).
	MarkerUnordered ListMarker = iota
	// MarkerOrdered is for bullets like *. (with point).
	MarkerOrdered
	// MarkerTodoDone is for bullets like *v (with tick).
	MarkerTodoDone
	// MarkerTodo is for bullets like *x (with cross).
	MarkerTodo
)

func (ListMarker) SameAs 

func (m1 ListMarker) SameAs(m2 ListMarker) bool

SameAs is true if both list markers are of the same type. MarkerTodoDone and MarkerTodo are considered same to each other. All other markers are different from each other.

type Paragraph 

type Paragraph struct {
	Formatted
}

Paragraph is a block of formatted text.

func (Paragraph) ID 

func (p Paragraph) ID(counter *IDCounter) string

ID returns the paragraph's id which is paragraph- and a number.

type Quote 

type Quote struct {
	// contains filtered or unexported fields
}

Quote is the block representing a quote.

func (*Quote) AddBlock 

func (q *Quote) AddBlock(block Block)

AddBlock adds the block to the quote.

func (*Quote) Contents 

func (q *Quote) Contents() []Block

Contents returns the quote's contents.

func (Quote) ID 

func (q Quote) ID(counter *IDCounter) string

ID returns the quote's id which is quote- and a number. 

type RocketLink struct {
	IsEmpty bool
	links.Link
}

RocketLink is a rocket link which is meant to be nested inside LaunchPad. 

func MakeRocketLink(line, hyphaName string) RocketLink

MakeRocketLink parses the rocket link on the given line and returns it.

func (RocketLink) ID 

func (r RocketLink) ID(_ *IDCounter) string

ID returns an empty string because rocket links do not have ids on their own.

type Span 

type Span interface {
	Kind() SpanKind
}

Span is a piece of Formatted text. There are three implementors of this interface: SpanTableEntry (styles), InlineLink ([links]), InlineText (usual text).

type SpanKind 

type SpanKind int

SpanKind is a kind of a span, such as italic, bold, etc. 

const (
	SpanItalic SpanKind = iota
	SpanBold
	SpanMono
	SpanSuper
	SpanSub
	SpanMark
	SpanStrike
	SpanUnderline

	SpanLink
	SpanText
)

type SpanTableEntry 

type SpanTableEntry struct {
	Token string
	// contains filtered or unexported fields
}

SpanTableEntry is an entry of SpanTable and simultaneously a Span.

func (SpanTableEntry) Kind 

func (ste SpanTableEntry) Kind() SpanKind

Kind returns one of SpanKind. See the first column of SpanTable to learn what values are possible.

type Table 

type Table struct {
	// data
	HyphaName string
	Caption   string
	Rows      []*TableRow
}

Table is a table, which consists of several Rows and has a Caption.

func (Table) ID 

func (t Table) ID(counter *IDCounter) string

ID returns table's id which is table- and its number.

type TableCell 

type TableCell struct {
	IsHeaderCell bool
	Contents     []Block
	Colspan      uint
}

TableCell is a cell in TableRow.

func (*TableCell) ColspanAttribute 

func (tc *TableCell) ColspanAttribute() string

ColspanAttribute returns either an empty string (if the cell doesn't have colspan) or a string in this format: 

colspan="<number here>"

func (TableCell) ID 

func (tc TableCell) ID(_ *IDCounter) string

ID returns and empty string because table cells do not have ids.

func (*TableCell) TagName 

func (tc *TableCell) TagName() string

TagName returns "th" if the cell is a header cell, "td" elsewise.

type TableRow 

type TableRow struct {
	HyphaName string
	Cells     []*TableCell
}

TableRow is a row in a table. Thus, it can only be nested inside a table.

func (TableRow) ID 

func (tr TableRow) ID(_ *IDCounter) string

ID returns and empty string because table rows do not have ids.

func (*TableRow) LooksLikeThead 

func (tr *TableRow) LooksLikeThead() bool

LooksLikeThead is true if the table row looks like it might as well be a thead row.

Most likely, rows with more than two header cells are theads. I allow one extra datum cell for tables like this: | ! a ! b ! c | d | e ! f | g | h

type Transclusion 

type Transclusion struct {
	// Target is the name of the hypha to be transcluded.
	Target   string
	Blend    bool
	Selector TransclusionSelector
	TransclusionError
}

Transclusion is the block representing an extract from a different document. TODO: visitors for transclusion.

func MakeTransclusion 

func MakeTransclusion(line, hyphaName string) Transclusion

MakeTransclusion parses the line and returns a transclusion block.

TODO: move to the parser module.

func (Transclusion) ID 

func (t Transclusion) ID(counter *IDCounter) string

ID returns the transclusion's id which is transclusion- and a number.

type TransclusionError 

type TransclusionError struct {
	Reason TransclusionErrorReason
}

TransclusionError is the error that occured during transclusion.

func (*TransclusionError) HasError 

func (te *TransclusionError) HasError() bool

HasError is true if there is indeed an error.

type TransclusionErrorReason 

type TransclusionErrorReason int

TransclusionErrorReason is the reason why the transclusion failed during parsing. 

const (
	// TransclusionNoError means there is no error.
	TransclusionNoError TransclusionErrorReason = iota
	// TransclusionInTerminal means that Mycomarkup CLI is used. Transclusion is not supported in it.
	TransclusionInTerminal
	// TransclusionErrorNoTarget means that no target hypha was specified.
	TransclusionErrorNoTarget
	// TransclusionErrorOldSyntax means : was found in the target.
	TransclusionErrorOldSyntax
	// TransclusionErrorNotExists means the target hypha does not exist.
	TransclusionErrorNotExists
)

type TransclusionSelector 

type TransclusionSelector int

TransclusionSelector is the thing that specifies what parts of the document shall be transcluded. 

const (
	// SelectorOverview is SelectorAttachment and SelectorDescription combined.
	SelectorOverview TransclusionSelector = iota
	// SelectorAttachment selects the attachment of the target hypha.
	SelectorAttachment
	// SelectorDescription selects the description of the target hypha. The first paragraph of the text part of the hypha is considered its description.
	SelectorDescription
	// SelectorText selects all of the text in the hypha, but not the attachment.
	SelectorText
	// SelectorFull selects everything in the hypha, including the attachment.
	SelectorFull
)

Source Files

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