Standard Library

Module Index

TLang.String — string operations: split, trim, replace, indexOf, substring, case conversion, and more. TLang.List — ordered sequences: creation, access, push, map, filter, reduce, sort, group, and other higher-order operations. The same functions work with dot-method syntax. TLang.Map — string-keyed dictionaries: creation, get, set, keys, values, merge, higher-order operations. TLang.Int and TLang.Long — integer utilities: parsing, formatting (hex, binary, octal), range generation, clamping. TLang.Float and TLang.Double — floating-point utilities: parsing, rounding, floor, ceil, trigonometry. TLang.Math — generic numeric functions: abs, min, max, clamp, pow, sqrt, gcd, lcm. TLang.File — file I/O: read, write (scaffold-once or overwrite), exists check, search-replace, directory creation and deletion. TLang.Terminal — console output: println, print. Read line from stdin. TLang.Prompt — interactive prompts: ask, confirm, select, password. Useful for scaffolding tools that ask the user questions. TLang.Shell — process execution: run (capture output), stream (live output), capture (map with exitCode), env, which. TLang.Leaf — model tree access: model root, get node by name, list keys, check presence. The primary API for dynamic model traversal. TLang.Generator — template generation: generate(templateCall) dispatches to the appropriate built-in or user-supplied generator. TLang.Json and TLang.Yaml — serialisation: convert Leaf trees to JSON/YAML strings and back. TLang.Pdf — PDF document creation: create document, add pages, draw text and shapes, set fonts and colours, save to file. TLang.StringBuilder — efficient string accumulation: create, append, build. Avoids O(n²) concatenation in large loops. TLang.Naming — identifier case conversion: toCamelCase, toPascalCase, toSnakeCase, toKebabCase, toTitleCase, pluralize, singularize. TLang.Assert — test assertions: isTrue, isFalse, equals, contains, isEmpty, isNull, and more. Used inside test blocks. TLang.Formatting — code formatting: create a formatter, configure indent and spacing rules, render a token list.

Importing

      use TLang.File
      use TLang.Generator
      use TLang.List
      use TLang.Map
      use TLang.Naming
      use TLang.Shell
    

TLang.Str is an alias for TLang.String — both import the same module.

      use TLang.Str       // same as use TLang.String
      use TLang.String    // same
    

Dot-Method Syntax

List and Map higher-order functions can be called with dot-method syntax on the collection value. Both forms are identical.

      // Function form
      let result = List.map(items, (x) => x + "!")

      // Dot form — same result
      let result = items.map((x) => x + "!")

      // Chaining
      let processed = items
          .filter((x) => x != "")
          .map((x) => Naming.toPascalCase(x))
          .join(", ")