private replaceRouteValues()

in api/VsoClient.ts [245:317]
65 lines of code
17 McCabe index (conditional complexity)

    private replaceRouteValues(routeTemplate: string, routeValues: any): string {

        let result = "",
            currentPathPart = "",
            paramName = "",
            insideParam = false,
            charIndex: number,
            routeTemplateLength = routeTemplate.length,
            c: string;

        for (charIndex = 0; charIndex < routeTemplateLength; charIndex++) {
            c = routeTemplate[charIndex];

            if (insideParam) {
                if (c == "}") {
                    insideParam = false;
                    if (routeValues[paramName]) {
                        currentPathPart += encodeURIComponent(routeValues[paramName]);
                    } else {
                        // Normalize param name in order to capture wild-card routes
                        let strippedParamName = paramName.replace(/[^a-z0-9]/ig, '');
                        if (routeValues[strippedParamName]) {
                            currentPathPart += encodeURIComponent(routeValues[strippedParamName]);
                        }
                    }
                    paramName = "";
                }
                else {
                    paramName += c;
                }
            }
            else {
                if (c == "/") {
                    if (currentPathPart) {
                        if (result) {
                            result += "/";
                        }
                        result += currentPathPart;
                        currentPathPart = "";
                    }
                }
                else if (c == "{") {
                    if ((charIndex + 1) < routeTemplateLength && routeTemplate[charIndex + 1] == "{") {
                        // Escaped '{'
                        currentPathPart += c;
                        charIndex++;
                    }
                    else {
                        insideParam = true;
                    }
                }
                else if (c == '}') {
                    currentPathPart += c;
                    if ((charIndex + 1) < routeTemplateLength && routeTemplate[charIndex + 1] == "}") {
                        // Escaped '}'
                        charIndex++;
                    }
                }
                else {
                    currentPathPart += c;
                }
            }
        }

        if (currentPathPart) {
            if (result) {
                result += "/";
            }
            result += currentPathPart;
        }

        return result;
    }