# Cart Functions in XSLT

This section outlines key XSLT variables related to cart functionalities such as currency, symbols, query strings, and language settings. Each variable is defined to provide a default value or handle dynamic data from the cart.

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## Currency

**Description:** This variable sets the currency for the current cart. If no currency is explicitly defined in the cart data, it defaults to GBP.

```xml
<xsl:variable name="currency">
    <xsl:choose>
        <xsl:when test="/Page/Cart">
            <xsl:value-of select="/Page/Cart/@currency"/>
        </xsl:when>
        <xsl:otherwise>GBP</xsl:otherwise>
    </xsl:choose>
</xsl:variable>
```

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## Currency Code

**Description:** Retrieves the currency code used in the cart. If no currency is provided, the default code is set to GBP.

```xml
<xsl:variable name="currencyCode">
    <xsl:choose>
        <xsl:when test="/Page/Cart">
            <xsl:value-of select="/Page/Cart/@currency"/>
        </xsl:when>
        <xsl:otherwise>GBP</xsl:otherwise>
    </xsl:choose>
</xsl:variable>
```

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## Currency Symbol

**Description:** Extracts the currency symbol (e.g., £, $, €) from the cart. If no symbol is set, the pound symbol (£) is used by default.

```xml
<xsl:variable name="currencySymbol">
    <xsl:choose>
        <xsl:when test="/Page/Cart">
            <xsl:value-of select="/Page/Cart/@currencySymbol"/>
        </xsl:when>
        <xsl:otherwise>£</xsl:otherwise>
    </xsl:choose>
</xsl:variable>
```

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## Query Symbol

**Description:** Defines the query string symbol used in URLs. It determines whether to use an ampersand (`&`) for subsequent query parameters when the page is in admin mode, or a question mark (`?`) otherwise.

```xml
<xsl:variable name="querySymbol">
    <xsl:choose>
        <xsl:when test="/Page/@adminMode">&amp;</xsl:when>
        <xsl:otherwise>?</xsl:otherwise>
    </xsl:choose>
</xsl:variable>
```

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## Page Language

**Description:** Sets the language of the page based on various factors. It first checks if the page content has a defined language, then checks user settings, and finally defaults to a translation language if nothing is specified.

```xml
<xsl:variable name="pageLang">
    <xsl:choose>
        <xsl:when test="/Page/Contents/Content[@name='XmlLang']">
            <xsl:value-of select="Contents/Content[@name='XmlLang']"/>
        </xsl:when>
        <xsl:when test="@userlang and @userlang!=''">
            <xsl:value-of select="@userlang"/>
        </xsl:when>
        <xsl:otherwise>
            <xsl:value-of select="@translang"/>
        </xsl:otherwise>
    </xsl:choose>
</xsl:variable>
```

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[Back to Functions.xsl](/Front-End-Developer-Guide/v5/XSLT-Guide/Functions.xsl)

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