29 lines
981 B
Nim
29 lines
981 B
Nim
import cligen, os, math, deques
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import common
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proc main(files:seq[string], lines=10, bytes=0, quiet=false) =
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# if files.len == 0:
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# files.add "-"
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for file in files:
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if files.len > 1 and not quiet:
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writeLine(stdout, "==> " & (if file == "-": "standard input" else: file) & " <==")
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var f = if file == "-": stdin
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else: open(file, fmRead)
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if bytes > 0:
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var q = initDeque[char]()
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while not f.endOfFile:
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if q.len > bytes:
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q.popFirst
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q.addLast(f.readChar)
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for item in q.items:
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write(stdout, item)
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elif lines > 0:
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var q = initDeque[string]()
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for line in lines(f):
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if q.len > lines:
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q.popFirst
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q.addLast line
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for line in q.items:
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writeLine(stdout, line)
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dispatch(main, version=("version", nimbaseVersion))
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