ludic/docs/language/text/text-starts_with.md
Orkuncakilkaya b7745a4600 refactor(lang): rename the str type (and stringify builtin) to string
Expand the abbreviated string type and its conversion builtin to the full
word everywhere:
  str            ->  string        (the immutable-string type)
  str(x) -> str  ->  string(x) -> string   (the stringify builtin;
                                            what `{…}` interpolation calls)

Types are recognized by identifier, and llty maps both spellings to LLVM
`ptr`, so this is an atomic source rewrite: type annotations, the Ludic
type tags, the builtin name/dispatch, and the interpolation desugar, plus
the grammars, LSP, docs (type-str -> type-string, fn-str -> fn-string), and
inventory. int/bool stay (universally accepted, like Math).

Reseeded; C-free fixpoint holds; all suites green (45/24/29); site + check.py OK.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-08-30 01:51:11 +03:00

839 B

id name category kind tokens sig tip order ns member
text-starts_with Text.starts_with text namespace-method Text.starts_with Text.starts_with(s, prefix) -> bool Whether a string begins with a given prefix. 3 Text starts_with

Returns true when s begins with prefix, comparing byte for byte over the length of the prefix. An empty prefix always matches. Use it to route commands ("/help ..."), recognize a tag, or branch on a filename extension without slicing first.

Parameters:

  • s — the string to test
  • prefix — the leading substring to look for
program Command {
  var input: string = "/say hello"

  handler Parse phase Update {
    if Text.starts_with(input, "/say ") {
      let msg = Text.slice(input, 5, Text.length(input))
    }
  }
}