Echo v1.1.9

Echo 1.1.9

Versions: 1.1.0 → 1.1.9 (series complete)
Theme: HTTP + post-1.0 scripting polish
Package: echolang on PyPI · preferred CLI: elang
Failure model: unchanged — abort by default; recovery is inquiry and *Or twins

1.1 adds thin, host-gated networking and related scripting helpers on top of the 1.0 language surface. No new language syntax. No packages, generics, inheritance, or try / catch.

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Highlights

HTTP (1.1.0–1.1.1)

• httpGet / httpPost → { status, body, headers }
• Optional request headers; httpOk / httpRedirect
• httpGetOr / httpPostOr — network failures return a fallback; type errors and host deny still abort
• Host.allow_http (CLI default on; playground off → E2801)
• Network / bad URL → E2852; non-2xx still returns the response hash

URL & Base64 (1.1.2, 1.1.7)

• urlEncode / urlDecode / urlJoin / urlQuery (E2853)
• base64Encode / base64Decode (E2854)
• YAML deferred (would need a dependency)

Diagnostics & tooling (1.1.3–1.1.6, 1.1.8)

• watch lines include source location; abort dumps Watched: bindings
• Documented E2801, E2850–E2854 and http*Or in the failure model
• tools/sync_builtins.py + builtin inventory
• elang builtins / --count; -V and clearer -h

Playground & docs close (1.1.5, 1.1.9)

• Playground host policy documented (no files / run / HTTP)
• Series docs/examples pass: README, tour, examples/url_and_base64.echo

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Slice index

Version	Focus
1.1.0	httpGet / httpPost + allow_http
1.1.1	Headers, status helpers, *Or twins
1.1.2	URL helpers
1.1.3	watch / abort diagnostics
1.1.4	Error-message / code pass
1.1.5	Playground HTTP / host-policy docs
1.1.6	Builtin sync / inventory generator
1.1.7	Base64 helpers
1.1.8	elang builtins CLI polish
1.1.9	Series close (docs / examples)

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Install

pipx install echolang
elang --version          # Echo 1.1.9
elang builtins --count

Docs: https://deekshith-poojary98.github.io/echo/
Playground: https://deekshith-poojary98.github.io/echo/playground

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Still held (not in 1.1)

Packages / non-sibling imports, YAML, full LSP, inheritance, generics, async, VM, try / catch, Result / Option.

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Upgrade notes

• From 1.0.0: additive only — existing programs keep working.
• Playground still denies HTTP/files/run; use the CLI for live httpGet / httpPost.
• Prefer elang over echo / echolang for the CLI name.