Extracting attribute value from multiple XML nodes in golang? The 2019 Stack Overflow...
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Extracting attribute value from multiple XML nodes in golang?
The 2019 Stack Overflow Developer Survey Results Are InBetter way to get the XML attribute value?Extracting key information from a directory of XML filesPython XML - extracting informationChecking multiple XML in PHPDistinct List of attribute values from XML, using a pre-defined set of attribute namesParse child value from XML using ezxmlGolang visitor pattern for marshaling shapes as JSON, and XMLModify XML attribute based on element valueXML graphing, and attribute existenceGet attribute values with LINQ to XML
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ margin-bottom:0;
}
$begingroup$
I'm attempting to parse an SVG file to get all of the colors that are present in the file. SVGs are XML based and their structure can vary a bit. For example:
<svg viewBox="-80 -80 160 160">
<g stroke="black" fill="none">
<path d='...' fill='#0FF'/>
<path d='...' fill='#F0F'/>
...
</g>
</svg>
and
<svg viewBox="0 0 100 100">
<a>
<path d="..." stroke="black" fill="red"/>
<ellipse stroke="black" fill="white" cx="50" cy="40" rx="22" ry="35"/>
<circle cx="50" cy="40" r="5" stroke="black" fill="red"/>
</a>
</svg>
and
<svg viewBox="0 0 80 120">
<rect id="background-rect" x="0%" y="0%" width="100%" height="100%" fill="#aaaaaa"/>
</svg>
Are all examples of valid SVGs. At first I attempted to create the underlying structs that would allow me to represent all of these structures but then I decided to take a more generic approach that would focus soley on the fill attribute which is all I care about:
type GenericNode struct {
XMLName xml.Name
Fill string `xml:"fill,attr"`
Nodes []GenericNode `xml:",any"`
}
func (s *SVGController) GetColorsFromXML() []string {
xmlFile, _ := os.Open(s.Path)
byteValue, _ := ioutil.ReadAll(xmlFile)
var svg GenericNode
xml.Unmarshal(byteValue, &svg)
// Using a map here to avoid having to worry about having
// duplicate colors in the color slice
colorMap := make(map[string]struct{})
colorMap = getSVGColors(svg, colorMap)
// Once we have a complete color map extract all the keys
// to an array and return it.
colors := make([]string, len(colorMap))
i := 0
for k := range colorMap {
colors[i] = k
i++
}
return colors
}
func getSVGColors(svg GenericNode, colors map[string]struct{}) map[string]struct{} {
if svg.Fill != "" && strings.ToLower(svg.Fill) != "none" {
colors[svg.Fill] = struct{}{}
}
for _, node := range svg.Nodes {
colors = getSVGColors(node, colors)
}
return colors
}
Is this a reasonable approach to take? Am I doing anything here that should be avoided?
xml go
asked 3 mins ago
Abe MiesslerAbe Miessler
2761210
$endgroup$
add a comment |
$begingroup$
I'm attempting to parse an SVG file to get all of the colors that are present in the file. SVGs are XML based and their structure can vary a bit. For example:
<svg viewBox="-80 -80 160 160">
<g stroke="black" fill="none">
<path d='...' fill='#0FF'/>
<path d='...' fill='#F0F'/>
...
</g>
</svg>
and
<svg viewBox="0 0 100 100">
<a>
<path d="..." stroke="black" fill="red"/>
<ellipse stroke="black" fill="white" cx="50" cy="40" rx="22" ry="35"/>
<circle cx="50" cy="40" r="5" stroke="black" fill="red"/>
</a>
</svg>
and
<svg viewBox="0 0 80 120">
<rect id="background-rect" x="0%" y="0%" width="100%" height="100%" fill="#aaaaaa"/>
</svg>
Are all examples of valid SVGs. At first I attempted to create the underlying structs that would allow me to represent all of these structures but then I decided to take a more generic approach that would focus soley on the fill attribute which is all I care about:
type GenericNode struct {
XMLName xml.Name
Fill string `xml:"fill,attr"`
Nodes []GenericNode `xml:",any"`
}
func (s *SVGController) GetColorsFromXML() []string {
xmlFile, _ := os.Open(s.Path)
byteValue, _ := ioutil.ReadAll(xmlFile)
var svg GenericNode
xml.Unmarshal(byteValue, &svg)
// Using a map here to avoid having to worry about having
// duplicate colors in the color slice
colorMap := make(map[string]struct{})
colorMap = getSVGColors(svg, colorMap)
// Once we have a complete color map extract all the keys
// to an array and return it.
colors := make([]string, len(colorMap))
i := 0
for k := range colorMap {
colors[i] = k
i++
}
return colors
}
func getSVGColors(svg GenericNode, colors map[string]struct{}) map[string]struct{} {
if svg.Fill != "" && strings.ToLower(svg.Fill) != "none" {
colors[svg.Fill] = struct{}{}
}
for _, node := range svg.Nodes {
colors = getSVGColors(node, colors)
}
return colors
}
Is this a reasonable approach to take? Am I doing anything here that should be avoided?
xml go
asked 3 mins ago
Abe MiesslerAbe Miessler
2761210
$endgroup$
add a comment |
$begingroup$
I'm attempting to parse an SVG file to get all of the colors that are present in the file. SVGs are XML based and their structure can vary a bit. For example:
<svg viewBox="-80 -80 160 160">
<g stroke="black" fill="none">
<path d='...' fill='#0FF'/>
<path d='...' fill='#F0F'/>
...
</g>
</svg>
and
<svg viewBox="0 0 100 100">
<a>
<path d="..." stroke="black" fill="red"/>
<ellipse stroke="black" fill="white" cx="50" cy="40" rx="22" ry="35"/>
<circle cx="50" cy="40" r="5" stroke="black" fill="red"/>
</a>
</svg>
and
<svg viewBox="0 0 80 120">
<rect id="background-rect" x="0%" y="0%" width="100%" height="100%" fill="#aaaaaa"/>
</svg>
Are all examples of valid SVGs. At first I attempted to create the underlying structs that would allow me to represent all of these structures but then I decided to take a more generic approach that would focus soley on the fill attribute which is all I care about:
type GenericNode struct {
XMLName xml.Name
Fill string `xml:"fill,attr"`
Nodes []GenericNode `xml:",any"`
}
func (s *SVGController) GetColorsFromXML() []string {
xmlFile, _ := os.Open(s.Path)
byteValue, _ := ioutil.ReadAll(xmlFile)
var svg GenericNode
xml.Unmarshal(byteValue, &svg)
// Using a map here to avoid having to worry about having
// duplicate colors in the color slice
colorMap := make(map[string]struct{})
colorMap = getSVGColors(svg, colorMap)
// Once we have a complete color map extract all the keys
// to an array and return it.
colors := make([]string, len(colorMap))
i := 0
for k := range colorMap {
colors[i] = k
i++
}
return colors
}
func getSVGColors(svg GenericNode, colors map[string]struct{}) map[string]struct{} {
if svg.Fill != "" && strings.ToLower(svg.Fill) != "none" {
colors[svg.Fill] = struct{}{}
}
for _, node := range svg.Nodes {
colors = getSVGColors(node, colors)
}
return colors
}
Is this a reasonable approach to take? Am I doing anything here that should be avoided?
xml go
asked 3 mins ago
Abe MiesslerAbe Miessler
2761210
$endgroup$
I'm attempting to parse an SVG file to get all of the colors that are present in the file. SVGs are XML based and their structure can vary a bit. For example:
<svg viewBox="-80 -80 160 160">
<g stroke="black" fill="none">
<path d='...' fill='#0FF'/>
<path d='...' fill='#F0F'/>
...
</g>
</svg>
and
<svg viewBox="0 0 100 100">
<a>
<path d="..." stroke="black" fill="red"/>
<ellipse stroke="black" fill="white" cx="50" cy="40" rx="22" ry="35"/>
<circle cx="50" cy="40" r="5" stroke="black" fill="red"/>
</a>
</svg>
and
<svg viewBox="0 0 80 120">
<rect id="background-rect" x="0%" y="0%" width="100%" height="100%" fill="#aaaaaa"/>
</svg>
Are all examples of valid SVGs. At first I attempted to create the underlying structs that would allow me to represent all of these structures but then I decided to take a more generic approach that would focus soley on the fill attribute which is all I care about:
type GenericNode struct {
XMLName xml.Name
Fill string `xml:"fill,attr"`
Nodes []GenericNode `xml:",any"`
}
func (s *SVGController) GetColorsFromXML() []string {
xmlFile, _ := os.Open(s.Path)
byteValue, _ := ioutil.ReadAll(xmlFile)
var svg GenericNode
xml.Unmarshal(byteValue, &svg)
// Using a map here to avoid having to worry about having
// duplicate colors in the color slice
colorMap := make(map[string]struct{})
colorMap = getSVGColors(svg, colorMap)
// Once we have a complete color map extract all the keys
// to an array and return it.
colors := make([]string, len(colorMap))
i := 0
for k := range colorMap {
colors[i] = k
i++
}
return colors
}
func getSVGColors(svg GenericNode, colors map[string]struct{}) map[string]struct{} {
if svg.Fill != "" && strings.ToLower(svg.Fill) != "none" {
colors[svg.Fill] = struct{}{}
}
for _, node := range svg.Nodes {
colors = getSVGColors(node, colors)
}
return colors
}
Is this a reasonable approach to take? Am I doing anything here that should be avoided?
xml go
xml go
asked 3 mins ago
Abe MiesslerAbe Miessler
2761210
asked 3 mins ago
Abe MiesslerAbe Miessler
2761210
asked 3 mins ago
Abe MiesslerAbe Miessler
2761210
asked 3 mins ago
Abe MiesslerAbe Miessler
2761210
asked 3 mins ago
Abe MiesslerAbe Miessler
2761210
2761210
add a comment |
add a comment |
0
active
oldest
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