Xmllint

De Linuxmemo.

Version du 2 octobre 2025 à 11:34

Analyseur de fichiers XML

Valider la syntaxe

xmllint --valid file.xml

Correction de syntaxe

xmllint --recover file.xml > filesanserreur.xml

Auto indente

xmllint --format file.xml

Mode interactif

xmllint --shell file.xml
help

Xpath

xmllint --xpath "XPATH_EXPRESSION" file.xml

Language Xpath

Voir XPath

ref: https://www.browserstack.com/guide/xpath-locators-cheat-sheet

Différents types de requêtes XPath :

Xpath absolu :

Suit un chemin fixe du nœud racine à un élément (Précis mais fragile, car toute modification du DOM peut le détruire).

/
/html/body/div/div/div/main/div/div/div/select

Xpath relatif :

Recherche dynamique des éléments n'importe où dans le DOM (Plus flexible et stable pour les tests automatisés).

//
//div[@class='sort']/select

Interroger un élément pour le localisateur XPath

Axes :

Il existe 13 axes différents pour interroger un élément. Les axes permettent de localiser les éléments en fonction de leurs propres attributs, des éléments proches ou des relations hiérarchiques au sein du DOM.

ancestor

ancestor is used when we want to check all the parent nodes from the context node up to root.	
//select/ancestor::div

ancestor-or-self

ancestor-or-self is used when we want to select all the parent nodes upto root including the context node	
//select/ancestor-or-self::div

attribute

attribute is used when we want to query for an element using its attributes like id, class, value etc..	
//div[@class='sort']/select

child

child is used when we want to query for child element with parent reference	
//div[@class='sort']/child::select

descendant

descendant is used when we want to query for all the child element and its children of a context node	
//div[@class='sort']/descendant::*

descendant-or-self

descendant-or-self is used when we to query for all the child elements and its children including context node	
//div[@class='sort']/descendant-or-self::*

following

following is used when we want to query for all the elements after the current context node(except the context node’s descendant)	
//div[@class='sort']/following::*

following-sibling

following-sibling is used when we want to query for the sibling element which belongs to same parent as context node	
//div[@class='sort']/following-sibling::*

parent

parent is used when we want to query for the immediate parent of the current context node. This uses two dots “..”	
//div[@class='sort']/..

preceding

preceding is used when we want to query for elements that are preceding to the current context node	
//div[@class='sort']/preceding::*

preceding-sibling

preceding-sibling is used when we want to query for the sibling element preceding to the current context node	
//div[@class='sort']/preceding-sibling::*

self

self is used when we first query for a set of elements and then refine further for the current context node. This axis uses a single dot “.”	
//div[@class='sort']/.

Fonctions :

Les fonctions XPath permettent de vérifier l'existence des éléments et de les localiser en fonction de leurs attributs, de leur position ou de leur contenu textuel, améliorant ainsi la sélection dynamique des éléments.

boolean()

This function accepts locator as parameter and it return true if the passed locator is found else returns false	
boolean(//div[@class='sort']/select)

count()

This function accepts locator as parameter and returns the count of elements found	
count(//div[@class='sort']/select/*)

id()

This function accepts id attribute of the element and returns the element if found	
id('__next')

position()

This function is used when we need to identify an element based on its position	
//select/option[position()=2]