mirror of https://github.com/japl-lang/jale.git
76 lines
1.7 KiB
Nim
76 lines
1.7 KiB
Nim
## Universal (cross platform) terminal abstractions
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# source: https://github.com/h3rald/nimline/blob/master/nimline.nim
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# lines 42-56 (modified)
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import strutils
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import terminal
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when defined(windows):
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proc putchr(c: cint): cint {.discardable, header: "<conio.h>", importc: "_putch".}
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proc getchr(): cint {.header: "<conio.h>", importc: "_getch".}
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proc uniPutChr*(c: char) =
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## Prints an ASCII character to stdout.
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putchr(c.cint)
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proc uniGetChr*: int =
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## Retrieves an ASCII character from stdin.
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getchr().int
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else:
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proc uniPutChr*(c: char) =
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## Prints an ASCII character to stdout.
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stdout.write(c)
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proc uniGetChr*: int =
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## Retrieves an ASCII character from stdin.
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return getch().int
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type TermWriter* = distinct string
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proc `&=`*(wr: var TermWriter, str: string) =
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wr = TermWriter(string(wr) & str)
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proc lf*(wr: var TermWriter) =
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wr &= "\n"
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proc cr*(wr: var TermWriter) =
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when defined(windows):
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wr &= ($27.char & "[0G")
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else:
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wr &= "\r"
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proc up*(wr: var TermWriter, count: int) =
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if count == 0:
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return
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wr &= ($27.char & "[" & $count & "A")
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proc down*(wr: var TermWriter, count: int) =
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if count == 0:
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return
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wr &= ($27.char & "[" & $count & "B")
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proc clearLine*(wr: var TermWriter) =
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when defined(windows):
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wr &= ($27.char & "[1M" & $27.char & "[1L")
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else:
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wr &= ($27.char & "[2K")
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wr.cr()
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proc setCursorX*(wr: var TermWriter, x: int) =
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when defined(windows):
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wr &= ($27.char & "[" & $x & "G")
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else:
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if x == 0:
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wr &= "\r"
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else:
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wr &= ("\r" & $27.char & "[" & $x & "C")
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proc terminalWidth*(wr: var TermWriter): int =
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terminalWidth()
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proc flush*(wr: var TermWriter) =
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stdout.write(cast[string](wr))
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wr = cast[TermWriter]("")
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