@struktoai/mirage-core/dist/commands/builtin/generic/tr.js

A Unified Virtual Filesystem For AI Agents

// ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// ========= Copyright 2026 @ Strukto.AI All Rights Reserved. =========
import { byteView } from "../../../shell/bytes.js";
import { IOResult } from "../../../io/types.js";
import { openStream } from "../../../rs/stream.js";
import { StreamRefusal } from "../../../rs/errors.js";
import { refused } from "../../../rs/scan.js";
import { resolveSource, streamOutput } from "../utils/stream.js";
import { FlagView } from "../../spec/flag_view.js";
import { specOf } from "../../spec/builtins.js";
/** tr's engine over its sets, or tr's refusal of its operands. Mirrors
 * Python's `tr_engine`. */
export async function trEngine(texts, bag) {
    const fl = new FlagView(bag, specOf('tr'));
    try {
        return await openStream('tr', {
            operands: texts.map((text) => byteView(text)),
            delete: fl.asBool('delete'),
            squeeze: fl.asBool('squeeze_repeats'),
            complement: fl.asBool('C') || fl.asBool('complement'),
            truncate_set1: fl.asBool('truncate_set1'),
        });
    }
    catch (err) {
        if (!(err instanceof StreamRefusal))
            throw err;
        return refused(err);
    }
}
export function trGeneric(engine, paths, ctx, stream) {
    const first = paths[0];
    const source = first === undefined ? resolveSource(ctx.stdin) : stream(first);
    return [streamOutput(engine, source, ctx.signal), new IOResult()];
}
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