mirror of
https://github.com/JetSetIlly/Gopher2600.git
synced 2025-04-02 11:02:17 -04:00
53 lines
1.6 KiB
Go
53 lines
1.6 KiB
Go
// This file is part of Gopher2600.
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//
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// Gopher2600 is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Gopher2600 is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Gopher2600. If not, see <https://www.gnu.org/licenses/>.
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//
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// *** NOTE: all historical versions of this file, as found in any
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// git repository, are also covered by the licence, even when this
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// notice is not present ***
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package colorterm
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// this part of the colorterm package facilitates the reading of runes from a
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// reader interface (eg, os.Stdin). a straight call to reader.ReadRune() will
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// block until input is available. this causes problems if we want the program
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// to wait for something else from another reader or channel. with the mechanism
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// here, an input loop can use a channel-select to prevent the blocking.
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import (
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"bufio"
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"io"
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)
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type readRune struct {
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r rune
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n int
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err error
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}
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type runeReader chan readRune
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func initRuneReader(reader io.Reader) runeReader {
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bufReader := bufio.NewReader(reader)
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ch := make(runeReader)
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go func() {
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var readRune readRune
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for {
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readRune.r, readRune.n, readRune.err = bufReader.ReadRune()
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ch <- readRune
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}
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}()
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return ch
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}
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