ludic/docs/language/text/text-join.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

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Markdown

---
id: text-join
name: Text.join
category: text
kind: namespace-method
tokens: Text.join
sig: Text.join(parts, sep) -> string
tip: Join a list of strings with a separator.
order: 18
ns: Text
member: join
---
Concatenates the strings in the slice <code>parts</code> into one string, placing <code>sep</code> between each — the inverse of <code>Text.split</code>. With an empty separator it simply concatenates. Use it to build a CSV row, a path, or a display list from pieces.
```ludic
program Demo {
handler Step phase Update {
let line = Text.join(fields, ",")
}
}
```