README
¶
= Exercise 5.3
// Refs:
:url-base: https://github.com/fenegroni/TGPL-exercise-solutions
:workflow: workflows/Exercise 5.3
:action: actions/workflows/ch5ex3.yml
:url-workflow: {url-base}/{workflow}
:url-action: {url-base}/{action}
:badge-exercise: image:{url-workflow}/badge.svg?branch=main[link={url-action}]
{badge-exercise}
Write a function to print the contents of all text nodes in an HTML document tree.
Do not descend into <script> or <style> elements,
since their content are not visible in a web browser.
== Test
The new function to be tested is called `PrintAllTextNodesContent`.
The test follows the same pattern as exercises 5.1 and 5.2,
except this time the `want` element of the test is a simple string.
[source,go]
----
struct {
document string
want string
}
----
== Example
To make the output more predictable
I made sure all leading and trailing white space is removed and
empty lines are not printed.
Given this example HTML document as input:
[source,html]
----
<html>
<head></head>
<body>
<style>
p {
color: red;
}
</style>
<h1>title</h1>
<script src="javascript.js">
document.write("hello!")
</script>
<p>line1</p>
<p>line2</p>
</body>
</html>
----
the Example function's `Output` is very simple.
[source,go]
----
// Output:
// title
// line1
// line2
----
Documentation
¶
Overview ¶
Exercise5.3 prints the content of all text nodes in an HTML document read from standard input, except for <script> and <style> elements.
Index ¶
Examples ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func PrintAllTextNodesContent ¶
PrintAllTextNodesContent prints the contents of all text nodes found in n into out. It does not descend into <script> or <style> elements, since their content are not visible in a web browser. Note: all leading and trailing white space is removed and empty lines are not printed
Example ¶
document := `<html>
<head></head>
<body>
<style>
p {
color: red;
}
</style>
<h1>title</h1>
<script src="javascript.js">
document.write("hello!")
</script>
<p>line1</p>
<p>line2</p>
</body>
</html>`
parseTree, _ := html.Parse(strings.NewReader(document))
PrintAllTextNodesContent(parseTree, os.Stdout)
Output: title line1 line2
Types ¶
This section is empty.
Source Files
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