code.gitea.io/gitea@v1.19.3/modules/markup/markdown/math/inline_node.go (about)

     1  // Copyright 2022 The Gitea Authors. All rights reserved.
     2  // SPDX-License-Identifier: MIT
     3  
     4  package math
     5  
     6  import (
     7  	"github.com/yuin/goldmark/ast"
     8  	"github.com/yuin/goldmark/util"
     9  )
    10  
    11  // Inline represents inline math e.g. $...$ or \(...\)
    12  type Inline struct {
    13  	ast.BaseInline
    14  }
    15  
    16  // Inline implements Inline.Inline.
    17  func (n *Inline) Inline() {}
    18  
    19  // IsBlank returns if this inline node is empty
    20  func (n *Inline) IsBlank(source []byte) bool {
    21  	for c := n.FirstChild(); c != nil; c = c.NextSibling() {
    22  		text := c.(*ast.Text).Segment
    23  		if !util.IsBlank(text.Value(source)) {
    24  			return false
    25  		}
    26  	}
    27  	return true
    28  }
    29  
    30  // Dump renders this inline math as debug
    31  func (n *Inline) Dump(source []byte, level int) {
    32  	ast.DumpHelper(n, source, level, nil, nil)
    33  }
    34  
    35  // KindInline is the kind for math inline
    36  var KindInline = ast.NewNodeKind("MathInline")
    37  
    38  // Kind returns KindInline
    39  func (n *Inline) Kind() ast.NodeKind {
    40  	return KindInline
    41  }
    42  
    43  // NewInline creates a new ast math inline node
    44  func NewInline() *Inline {
    45  	return &Inline{
    46  		BaseInline: ast.BaseInline{},
    47  	}
    48  }