Tutorials

Step-by-step tutorials to help you solve practical tasks with lexbor. Each tutorial includes a complete, working code example that you can compile and run.

Available Tutorials

Extract All Links and Resolve URLs

Parse an HTML document, find all <a> elements using lxb_dom_elements_by_tag_name(), extract their href attributes, and resolve relative URLs into absolute ones using the URL module.

Modules used: HTML, DOM, URL

Extract All Links Using CSS Selectors

Same task as above, but uses CSS selectors (a[href]) instead of DOM lookup. Shows how to combine the CSS parser, Selectors engine, and URL module to find and process links with precise filtering.

Modules used: HTML, CSS, Selectors, URL

Intercept Tokenizer Callbacks Before Tree Building

Intercept the tokenizer callback before tokens reach the tree builder. Demonstrates how to inspect, filter, and skip tokens during parsing — for example, removing whitespace-only text nodes from the resulting DOM tree.

Modules used: HTML