parser

package
v0.2.546 Latest Latest
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 Go to latest Published: Jan 29, 2024 License: MIT Imports: 11 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var ErrLegacyFileFormat = errors.New("legacy file format - run templ migrate")
View Source 
var ErrNonSpaceCharacter = errors.New("non space character found")
View Source 
var ErrTemplateNotFound = errors.New("template not found")

Functions

func ExpressionOf 

func ExpressionOf(p parse.Parser[string]) parse.Parser[Expression]

func StripType 

func StripType[T any](p parse.Parser[T]) parse.Parser[any]

StripType takes the parser and throws away the return value.

Types

type Attribute 

type Attribute interface {
	// Write out the string.
	Write(w io.Writer, indent int) error
}

type BoolConstantAttribute 

type BoolConstantAttribute struct {
	Name string
}

<hr noshade/>

func (BoolConstantAttribute) String 

func (bca BoolConstantAttribute) String() string

func (BoolConstantAttribute) Write 

func (bca BoolConstantAttribute) Write(w io.Writer, indent int) error

type BoolExpressionAttribute 

type BoolExpressionAttribute struct {
	Name       string
	Expression Expression
}

noshade={ templ.Bool(...) }

func (BoolExpressionAttribute) String 

func (ea BoolExpressionAttribute) String() string

func (BoolExpressionAttribute) Write 

func (ea BoolExpressionAttribute) Write(w io.Writer, indent int) error

type CSSProperty 

type CSSProperty interface {
	IsCSSProperty() bool
	Write(w io.Writer, indent int) error
}

CSSProperty is a CSS property and value pair.

type CSSTemplate 

type CSSTemplate struct {
	Name       Expression
	Properties []CSSProperty
}

CSS definition. 

css Name() {
  color: #ffffff;
  background-color: { constants.BackgroundColor };
  background-image: url('./somewhere.png');
}

func (CSSTemplate) IsTemplateFileNode 

func (css CSSTemplate) IsTemplateFileNode() bool

func (CSSTemplate) Write 

func (css CSSTemplate) Write(w io.Writer, indent int) error

type CallTemplateExpression 

type CallTemplateExpression struct {
	// Expression returns a template to execute.
	Expression Expression
}

CallTemplateExpression can be used to create and render a template using data. {! Other(p.First, p.Last) } or it can be used to render a template parameter. {! v }

func (CallTemplateExpression) IsNode 

func (cte CallTemplateExpression) IsNode() bool

func (CallTemplateExpression) Write 

func (cte CallTemplateExpression) Write(w io.Writer, indent int) error

type CaseExpression 

type CaseExpression struct {
	Expression  Expression
	Children    []Node
	Diagnostics []Diagnostic
}

case "Something":

type ChildrenExpression 

type ChildrenExpression struct{}

ChildrenExpression can be used to rended the children of a templ element. { children ... }

func (ChildrenExpression) IsNode 

func (ChildrenExpression) IsNode() bool

func (ChildrenExpression) Write 

func (ChildrenExpression) Write(w io.Writer, indent int) error

type ConditionalAttribute 

type ConditionalAttribute struct {
	Expression Expression
	Then       []Attribute
	Else       []Attribute
}
<a href="test" \
	if active {
   class="isActive"
 }

func (ConditionalAttribute) String 

func (ca ConditionalAttribute) String() string

func (ConditionalAttribute) Write 

func (ca ConditionalAttribute) Write(w io.Writer, indent int) error

type ConstantAttribute 

type ConstantAttribute struct {
	Name        string
	Value       string
	SingleQuote bool
}

href=""

func (ConstantAttribute) String 

func (ca ConstantAttribute) String() string

func (ConstantAttribute) Write 

func (ca ConstantAttribute) Write(w io.Writer, indent int) error

type ConstantCSSProperty 

type ConstantCSSProperty struct {
	Name  string
	Value string
}

color: #ffffff;

func (ConstantCSSProperty) IsCSSProperty 

func (c ConstantCSSProperty) IsCSSProperty() bool

func (ConstantCSSProperty) String 

func (c ConstantCSSProperty) String(minified bool) string

func (ConstantCSSProperty) Write 

func (c ConstantCSSProperty) Write(w io.Writer, indent int) error

type Diagnostic 

type Diagnostic struct {
	Message string
	Range   Range
}

Diagnostic for template file.

type DocType 

type DocType struct {
	Value string
}

<!DOCTYPE html>

func (DocType) IsNode 

func (dt DocType) IsNode() bool

func (DocType) Write 

func (dt DocType) Write(w io.Writer, indent int) error

type Element 

type Element struct {
	Name           string
	Attributes     []Attribute
	IndentAttrs    bool
	Children       []Node
	IndentChildren bool
	TrailingSpace  TrailingSpace
	Diagnostics    []Diagnostic
}

<a .../> or <div ...>...</div>

func (Element) IsBlockElement 

func (e Element) IsBlockElement() bool

func (Element) IsNode 

func (e Element) IsNode() bool

func (Element) IsVoidElement 

func (e Element) IsVoidElement() bool

https://www.w3.org/TR/2011/WD-html-markup-20110113/syntax.html#void-element

func (Element) Trailing 

func (e Element) Trailing() TrailingSpace

func (Element) Validate 

func (e Element) Validate() (msgs []string, ok bool)

Validate that no invalid expressions have been used.

func (Element) Write 

func (e Element) Write(w io.Writer, indent int) error

type ElseIfExpression 

type ElseIfExpression struct {
	Expression  Expression
	Then        []Node
	Diagnostics []Diagnostic
}

type Expression 

type Expression struct {
	Value string
	Range Range
}

Expression containing Go code.

func NewExpression 

func NewExpression(value string, from, to parse.Position) Expression

NewExpression creates a Go expression.

type ExpressionAttribute 

type ExpressionAttribute struct {
	Name       string
	Expression Expression
}

href={ ... }

func (ExpressionAttribute) String 

func (ea ExpressionAttribute) String() string

func (ExpressionAttribute) Write 

func (ea ExpressionAttribute) Write(w io.Writer, indent int) (err error)

type ExpressionCSSProperty 

type ExpressionCSSProperty struct {
	Name  string
	Value StringExpression
}

background-color: { constants.BackgroundColor };

func (ExpressionCSSProperty) IsCSSProperty 

func (c ExpressionCSSProperty) IsCSSProperty() bool

func (ExpressionCSSProperty) Write 

func (c ExpressionCSSProperty) Write(w io.Writer, indent int) error

type ForExpression 

type ForExpression struct {
	Expression  Expression
	Children    []Node
	Diagnostics []Diagnostic
}
for i, v := range p.Addresses {
  {! Address(v) }
}

func (ForExpression) IsNode 

func (fe ForExpression) IsNode() bool

func (ForExpression) Write 

func (fe ForExpression) Write(w io.Writer, indent int) error

type GoComment 

type GoComment struct {
	Contents  string
	Multiline bool
}

GoComment.

func (GoComment) IsNode 

func (c GoComment) IsNode() bool

func (GoComment) Write 

func (c GoComment) Write(w io.Writer, indent int) error

type HTMLComment 

type HTMLComment struct {
	Contents string
}

HTMLComment.

func (HTMLComment) IsNode 

func (c HTMLComment) IsNode() bool

func (HTMLComment) Write 

func (c HTMLComment) Write(w io.Writer, indent int) error

type HTMLTemplate 

type HTMLTemplate struct {
	Diagnostics []Diagnostic
	Expression  Expression
	Children    []Node
}

HTMLTemplate definition. 

templ Name(p Parameter) {
  if ... {
      <Element></Element>
  }
}

func (HTMLTemplate) IsTemplateFileNode 

func (t HTMLTemplate) IsTemplateFileNode() bool

func (HTMLTemplate) Write 

func (t HTMLTemplate) Write(w io.Writer, indent int) error

type IfExpression 

type IfExpression struct {
	Expression  Expression
	Then        []Node
	ElseIfs     []ElseIfExpression
	Else        []Node
	Diagnostics []Diagnostic
}

if p.Type == "test" && p.thing { }

func (IfExpression) IsNode 

func (n IfExpression) IsNode() bool

func (IfExpression) Write 

func (n IfExpression) Write(w io.Writer, indent int) error

type Node 

type Node interface {
	IsNode() bool
	// Write out the string.
	Write(w io.Writer, indent int) error
}

A Node appears within a template, e.g. an StringExpression, Element, IfExpression etc.

type Nodes 

type Nodes struct {
	Diagnostics []Diagnostic
	Nodes       []Node
}

type Package 

type Package struct {
	Expression Expression
}

func (Package) Write 

func (p Package) Write(w io.Writer, indent int) error

type Position 

type Position struct {
	Index int64
	Line  uint32
	Col   uint32
}

Source mapping to map from the source code of the template to the in-memory representation.

func NewPosition 

func NewPosition(index int64, line, col uint32) Position

NewPosition initialises a position.

func (Position) String 

func (p Position) String() string

type Range 

type Range struct {
	From Position
	To   Position
}

Range of text within a file.

type RawElement 

type RawElement struct {
	Name       string
	Attributes []Attribute
	Contents   string
}

func (RawElement) IsNode 

func (e RawElement) IsNode() bool

func (RawElement) Write 

func (e RawElement) Write(w io.Writer, indent int) error

type ScriptTemplate 

type ScriptTemplate struct {
	Name       Expression
	Parameters Expression
	Value      string
}

ScriptTemplate is a script block.

func (ScriptTemplate) IsTemplateFileNode 

func (s ScriptTemplate) IsTemplateFileNode() bool

func (ScriptTemplate) Write 

func (s ScriptTemplate) Write(w io.Writer, indent int) error

type SourceMap 

type SourceMap struct {
	SourceLinesToTarget map[uint32]map[uint32]Position
	TargetLinesToSource map[uint32]map[uint32]Position
}

func NewSourceMap 

func NewSourceMap() *SourceMap

NewSourceMap creates a new lookup to map templ source code to items in the parsed template.

func (*SourceMap) Add 

func (sm *SourceMap) Add(src Expression, tgt Range) (updatedFrom Position)

Add an item to the lookup.

func (*SourceMap) SourcePositionFromTarget 

func (sm *SourceMap) SourcePositionFromTarget(line, col uint32) (src Position, ok bool)

SourcePositionFromTarget looks the source position using the target position.

func (*SourceMap) TargetPositionFromSource 

func (sm *SourceMap) TargetPositionFromSource(line, col uint32) (tgt Position, ok bool)

TargetPositionFromSource looks up the target position using the source position.

type SpreadAttributes 

type SpreadAttributes struct {
	Expression Expression
}

<a { spread... } />

func (SpreadAttributes) String 

func (sa SpreadAttributes) String() string

func (SpreadAttributes) Write 

func (sa SpreadAttributes) Write(w io.Writer, indent int) error

type StringExpression 

type StringExpression struct {
	Expression Expression
	// TrailingSpace lists what happens after the expression.
	TrailingSpace TrailingSpace
}

StringExpression is used within HTML elements, and for style values. { ... }

func (StringExpression) IsNode 

func (se StringExpression) IsNode() bool

func (StringExpression) IsStyleDeclarationValue 

func (se StringExpression) IsStyleDeclarationValue() bool

func (StringExpression) Trailing 

func (se StringExpression) Trailing() TrailingSpace

func (StringExpression) Write 

func (se StringExpression) Write(w io.Writer, indent int) error

type SwitchExpression 

type SwitchExpression struct {
	Expression Expression
	Cases      []CaseExpression
}
switch p.Type {
 case "Something":
}

func (SwitchExpression) IsNode 

func (se SwitchExpression) IsNode() bool

func (SwitchExpression) Write 

func (se SwitchExpression) Write(w io.Writer, indent int) error

type TemplElementExpression 

type TemplElementExpression struct {
	// Expression returns a template to execute.
	Expression Expression
	// Children returns the elements in a block element.
	Children    []Node
	Diagnostics []Diagnostic
}

TemplElementExpression can be used to create and render a template using data. @Other(p.First, p.Last) or it can be used to render a template parameter. @v

func (TemplElementExpression) IsNode 

func (tee TemplElementExpression) IsNode() bool

func (TemplElementExpression) Write 

func (tee TemplElementExpression) Write(w io.Writer, indent int) error

type TemplateFile 

type TemplateFile struct {
	// Header contains comments or whitespace at the top of the file.
	Header []TemplateFileGoExpression
	// Package expression.
	Package Package
	// Nodes in the file.
	Nodes []TemplateFileNode
	// Diagnostics contains any errors or warnings.
	Diagnostics []Diagnostic
}

func Parse 

func Parse(fileName string) (TemplateFile, error)

func ParseString 

func ParseString(template string) (TemplateFile, error)

func (TemplateFile) Write 

func (tf TemplateFile) Write(w io.Writer) error

type TemplateFileGoExpression 

type TemplateFileGoExpression struct {
	Expression Expression
}

TemplateFileGoExpression within a TemplateFile

func (TemplateFileGoExpression) IsTemplateFileNode 

func (exp TemplateFileGoExpression) IsTemplateFileNode() bool

func (TemplateFileGoExpression) Write 

func (exp TemplateFileGoExpression) Write(w io.Writer, indent int) error

type TemplateFileNode 

type TemplateFileNode interface {
	IsTemplateFileNode() bool
	Write(w io.Writer, indent int) error
}

TemplateFileNode can be a Template, CSS, Script or Go.

type TemplateFileParser 

type TemplateFileParser struct {
	DefaultPackage string
}

func NewTemplateFileParser 

func NewTemplateFileParser(pkg string) TemplateFileParser

NewTemplateFileParser creates a new TemplateFileParser.

func (TemplateFileParser) Parse 

func (p TemplateFileParser) Parse(pi *parse.Input) (tf TemplateFile, ok bool, err error)

type Text 

type Text struct {
	// Value is the raw HTML encoded value.
	Value string
	// TrailingSpace lists what happens after the text.
	TrailingSpace TrailingSpace
}

Text node within the document.

func (Text) IsNode 

func (t Text) IsNode() bool

func (Text) Trailing 

func (t Text) Trailing() TrailingSpace

func (Text) Write 

func (t Text) Write(w io.Writer, indent int) error

type TrailingSpace 

type TrailingSpace string

TrailingSpace defines the whitespace that may trail behind the close of an element, a text node, or string expression. 

const (
	SpaceNone       TrailingSpace = ""
	SpaceHorizontal TrailingSpace = " "
	SpaceVertical   TrailingSpace = "\n"
)

func NewTrailingSpace 

func NewTrailingSpace(s string) (ts TrailingSpace, err error)

type Whitespace 

type Whitespace struct {
	Value string
}

Whitespace.

func (Whitespace) IsNode 

func (ws Whitespace) IsNode() bool

func (Whitespace) Write 

func (ws Whitespace) Write(w io.Writer, indent int) error

type WhitespaceTrailer 

type WhitespaceTrailer interface {
	Trailing() TrailingSpace
}

Source Files

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