Project roadmap and task tracking for the nfx-stringutils library.

Todo

• Substring Extraction
  • substringBefore(str, delimiter) - extract before first occurrence
  • substringAfter(str, delimiter) - extract after first occurrence
  • substringBeforeLast(str, delimiter) - extract before last occurrence
  • substringAfterLast(str, delimiter) - extract after last occurrence
  • extractBetween(str, start, end) - extract between delimiters
  • removePrefix(str, prefix) - remove prefix if present
  • removeSuffix(str, suffix) - remove suffix if present

• Character & String Removal
  • removeAll(str, char) - remove all occurrences of character
  • removeAll(str, substr) - remove all occurrences of substring
  • removeIf(str, predicate) - remove characters matching predicate
  • removeWhitespace(str) - remove all whitespace characters
  • collapseWhitespace(str) - collapse consecutive whitespace to single space

• URL encoding/decoding
  • urlEncode(str) - percent-encode special characters
  • urlDecode(str) - decode percent-encoded strings

• JSON escape/unescape
  • jsonEscape(str) - escape quotes, backslashes, control characters
  • jsonUnescape(str) - unescape JSON string literals

• XML/HTML escape/unescape
  • xmlEscape(str) - escape &, <, >, ", ' - [ ] <tt>xmlUnescape(str)</tt> - unescape XML entities - [ ] C/C++ escape sequences - [ ] <tt>cppEscape(str)</tt> - escape \n, \t, \r, \\, \" - [ ] <tt>cppUnescape(str)</tt> - unescape C++ string literals - [ ] Predicate-Based Operations - [ ] <tt>trimIf(str, predicate)</tt> - trim characters matching predicate - [ ] <tt>trimStartIf(str, predicate)</tt> - trim start with predicate - [ ] <tt>trimEndIf(str, predicate)</tt> - trim end with predicate - [ ] <tt>countIf(str, predicate)</tt> - count characters matching predicate - [ ] <tt>replaceIf(str, predicate, replacement)</tt> - replace characters matching predicate - [ ] <tt>findIf(str, predicate)</tt> - find first character matching predicate - [ ] <tt>findIfNot(str, predicate)</tt> - find first character NOT matching predicate - [ ] Advanced Comparison - [ ] <tt>compareIgnoreCase(lhs, rhs)</tt> - three-way comparison (returns int) - [ ] <tt>naturalCompare(lhs, rhs)</tt> - natural sorting (handles embedded numbers) - [ ] <tt>fuzzyMatch(str, pattern)</tt> - fuzzy string matching - [ ] <tt>levenshteinDistance(lhs, rhs)</tt> - edit distance algorithm - [ ] <tt>commonPrefix(lhs, rhs)</tt> - longest common prefix - [ ] <tt>commonSuffix(lhs, rhs)</tt> - longest common suffix - [ ] String Formatting Utilities - [ ] <tt>truncate(str, maxLength)</tt> - truncate string to max length - [ ] <tt>truncate(str, maxLength, ellipsis)</tt> - truncate with ellipsis ("...")
  • leftJustify(str, width, fillChar) - alias for padRight
  • rightJustify(str, width, fillChar) - alias for padLeft
  • wordWrap(str, width) - wrap text to specified width
  • indent(str, spaces) - indent all lines
  • dedent(str) - remove common leading whitespace

v2.0.0 (Breaking Changes)

• Remove deprecated isValidPort(T) template function
  • Migration: use manual range check (port >= 0 && port <= 65535)
  • Update all documentation and samples

• SIMD optimizations for character searching (SSE2/AVX2)

• Optimize contains() with Boyer-Moore for longer patterns

• Benchmark-driven optimization of hot paths

• Unicode support (UTF-8, UTF-16, UTF-32)
  • utf8Length() - count Unicode codepoints
  • utf8Valid() - validate UTF-8 encoding
  • utf8Normalize() - Unicode normalization (NFC, NFD, NFKC, NFKD)

• Case conversion with locale support

• Collation and locale-aware comparison

• Regular Expression Utilities
  • regexMatch(str, pattern) - simple regex matching wrapper
  • regexReplace(str, pattern, replacement) - regex replacement
  • regexSplit(str, pattern) - split by regex pattern

• StringBuilder class for efficient string concatenation
  • Amortized growth strategy
  • Move semantics
  • Format string support

• Refactor parsing API to modern C++ idioms
  • Replace tryParseBool/tryParseInt/etc with unified template interface
  • Add std::optional<T> fromString<T>(std::string_view str)
  • Add bool fromString<T>(std::string_view str, T& result)
  • Deprecate old tryParse* functions in v1.x
  • Remove tryParse* functions in v2.0.0
  • Support types: bool, int, uint32_t, int64_t, float, double
  • Update all tests, samples, and documentation

In Progress

• NIL

Done ✓

v1.2.0 (2025-11-08)

• String operations (count, countOverlapping, replace, replaceAll, join)

• Formatting & padding (padLeft, padRight, center, repeat)

• Search & manipulation (reverse, indexOf, lastIndexOf)

• Parsing: tryParseFloat with NaN/inf support

• Updated documentation and samples

v1.1.0 (2025-10-30)

• Zero-allocation string splitting (Splitter class, splitView() factory)

v1.0.3 (2025-10-30)

• Bug fix: Removed unused variable in isIPv6Address

v1.0.2 (2025-10-29)

• Bug fix: CMake directory paths and variable naming

v1.0.1 (2025-10-27)

• Bug fix: Release workflow draft releases