Function replaceXMLParts

frontend/lib/utils.ts:274–534

(
    xmlContent: string,
    searchReplacePairs: Array<{ search: string; replace: string }>,
)

 * @returns The updated XML string with replacements applied
 */
export function replaceXMLParts(
    xmlContent: string,
    searchReplacePairs: Array<{ search: string; replace: string }>,
): string {
    // Format the XML first to ensure consistent line breaks
    let result = formatXML(xmlContent)

    for (const { search, replace } of searchReplacePairs) {
        // Also format the search content for consistency
        const formattedSearch = formatXML(search)
        const searchLines = formattedSearch.split("\n")

        // Split into lines for exact line matching
        const resultLines = result.split("\n")

        // Remove trailing empty line if exists (from the trailing \n in search content)
        if (searchLines[searchLines.length - 1] === "") {
            searchLines.pop()
        }

        // Always search from the beginning - pairs may not be in document order
        const startLineNum = 0

        // Try to find match using multiple strategies
        let matchFound = false
        let matchStartLine = -1
        let matchEndLine = -1

        // First try: exact match
        for (
            let i = startLineNum;
            i <= resultLines.length - searchLines.length;
            i++
        ) {
            let matches = true

            for (let j = 0; j < searchLines.length; j++) {
                if (resultLines[i + j] !== searchLines[j]) {
                    matches = false
                    break
                }
            }

            if (matches) {
                matchStartLine = i
                matchEndLine = i + searchLines.length
                matchFound = true
                break
            }
        }

        // Second try: line-trimmed match (fallback)
        if (!matchFound) {
            for (
                let i = startLineNum;
                i <= resultLines.length - searchLines.length;
                i++
            ) {