@revenuecat/purchases-ui-js/dist/utils/variable-utils.js

Web components for Paywalls. Powered by RevenueCat

function capitalize(value) {
    return value.charAt(0).toUpperCase() + value.slice(1).toLowerCase();
}
const VARIABLE_MODIFIERS = {
    uppercase: (value) => String(value ?? "").toUpperCase(),
    lowercase: (value) => String(value ?? "").toLowerCase(),
    capitalize: (value) => {
        return String(value ?? "").replaceAll(/(\p{Letter}+)/giu, capitalize);
    },
};
// Only strips the leading "custom." prefix, preserving any "custom." within the key itself
const CUSTOM_VARIABLE_PREFIX = /^\$?custom\./;
function parseTemplate(template, variables) {
    // Match {{ product.variable | helper1 | helper2:arg1,arg2 }} patterns
    const templateRegex = /\{\{\s*([$a-z0-9._-]+)(?:\s*\|\s*([^}]*))?\s*\}\}/gi;
    return template.replace(templateRegex, (match, namePart, modifierPart) => {
        const variableName = namePart
            ?.trim()
            ?.replace(CUSTOM_VARIABLE_PREFIX, "");
        const variable = variableName && variables[variableName];
        if (variable === undefined) {
            return "";
        }
        const modifierName = modifierPart?.trim();
        if (modifierName === undefined) {
            return variable;
        }
        const modifier = VARIABLE_MODIFIERS[modifierName];
        return modifier ? modifier(variable) : variable;
    });
}
export function replaceVariables(input = "", variables) {
    return parseTemplate(input, variables ?? {});
}