Revision 22eea78e7b5891b32232c0a433960d18bc00effc authored by Yichao Yu on 28 June 2015, 22:28:02 UTC, committed by Yichao Yu on 16 September 2015, 11:30:50 UTC
1 parent ad71288
Terminals.jl
# This file is a part of Julia. License is MIT: http://julialang.org/license
module Terminals
export
TextTerminal,
UnixTerminal,
TerminalBuffer,
TTYTerminal,
cmove,
cmove_col,
cmove_down,
cmove_left,
cmove_line_down,
cmove_line_up,
cmove_right,
cmove_up,
disable_bracketed_paste,
enable_bracketed_paste,
end_keypad_transmit_mode,
getX,
getY,
hascolor,
pos,
raw!,
writepos
import Base:
flush,
read,
readuntil,
size,
start_reading,
stop_reading,
write,
writemime,
reseteof,
eof,
check_open # stream.jl
## TextTerminal ##
abstract TextTerminal <: Base.IO
# INTERFACE
size(::TextTerminal) = error("Unimplemented")
writepos(t::TextTerminal, x, y, s::Array{UInt8,1}) = error("Unimplemented")
cmove(t::TextTerminal, x, y) = error("Unimplemented")
getX(t::TextTerminal) = error("Unimplemented")
getY(t::TextTerminal) = error("Unimplemented")
pos(t::TextTerminal) = (getX(t), getY(t))
reseteof(t::TextTerminal) = nothing
# Relative moves (Absolute position fallbacks)
cmove_up(t::TextTerminal, n) = cmove(getX(t), max(1, getY(t)-n))
cmove_up(t) = cmove_up(t, 1)
cmove_down(t::TextTerminal, n) = cmove(getX(t), max(height(t), getY(t)+n))
cmove_down(t) = cmove_down(t, 1)
cmove_left(t::TextTerminal, n) = cmove(max(1, getX(t)-n), getY(t))
cmove_left(t) = cmove_left(t, 1)
cmove_right(t::TextTerminal, n) = cmove(max(width(t), getX(t)+n), getY(t))
cmove_right(t) = cmove_right(t, 1)
cmove_line_up(t::TextTerminal, n) = cmove(1, max(1, getY(t)-n))
cmove_line_up(t) = cmove_line_up(t, 1)
cmove_line_down(t::TextTerminal, n) = cmove(1, max(height(t), getY(t)+n))
cmove_line_down(t) = cmove_line_down(t, 1)
cmove_col(t::TextTerminal, c) = cmove(c, getY(t))
# Defaults
hascolor(::TextTerminal) = false
# Utility Functions
function writepos{T}(t::TextTerminal, x, y, b::Array{T})
if isbits(T)
writepos(t, x, y, reinterpret(UInt8, b))
else
cmove(t, x, y)
invoke(write, Tuple{IO, Array}, s, a)
end
end
function writepos(t::TextTerminal, x, y, args...)
cmove(t, x, y)
write(t, args...)
end
width(t::TextTerminal) = size(t)[2]
height(t::TextTerminal) = size(t)[1]
# For terminals with buffers
flush(t::TextTerminal) = nothing
clear(t::TextTerminal) = error("Unimplemented")
clear_line(t::TextTerminal, row) = error("Unimplemented")
clear_line(t::TextTerminal) = error("Unimplemented")
raw!(t::TextTerminal, raw::Bool) = error("Unimplemented")
beep(t::TextTerminal) = nothing
enable_bracketed_paste(t::TextTerminal) = nothing
disable_bracketed_paste(t::TextTerminal) = nothing
## UnixTerminal ##
abstract UnixTerminal <: TextTerminal
type TerminalBuffer <: UnixTerminal
out_stream::Base.IO
end
type TTYTerminal <: UnixTerminal
term_type::ASCIIString
in_stream::Base.TTY
out_stream::Base.TTY
err_stream::Base.TTY
end
reseteof(t::TTYTerminal) = reseteof(t.in_stream)
const CSI = "\x1b["
cmove_up(t::UnixTerminal, n) = write(t.out_stream, "$(CSI)$(n)A")
cmove_down(t::UnixTerminal, n) = write(t.out_stream, "$(CSI)$(n)B")
cmove_right(t::UnixTerminal, n) = write(t.out_stream, "$(CSI)$(n)C")
cmove_left(t::UnixTerminal, n) = write(t.out_stream, "$(CSI)$(n)D")
cmove_line_up(t::UnixTerminal, n) = (cmove_up(t, n); cmove_col(t, 0))
cmove_line_down(t::UnixTerminal, n) = (cmove_down(t, n); cmove_col(t, 0))
cmove_col(t::UnixTerminal, n) = write(t.out_stream, "$(CSI)$(n)G")
@windows_only begin
ispty(s::Base.TTY) = s.ispty
ispty(s) = false
end
@windows ? begin
function raw!(t::TTYTerminal,raw::Bool)
check_open(t.in_stream)
if ispty(t.in_stream)
run(if raw
`stty raw -echo onlcr -ocrnl opost`
else
`stty sane`
end,t.in_stream,t.out_stream,t.err_stream)
true
else
ccall(:jl_tty_set_mode,
Int32, (Ptr{Void},Int32),
t.in_stream.handle, raw) != -1
end
end
end : begin
function raw!(t::TTYTerminal, raw::Bool)
check_open(t.in_stream)
ccall(:jl_tty_set_mode, Int32, (Ptr{Void},Int32), t.in_stream.handle, raw) != -1
end
end
enable_bracketed_paste(t::UnixTerminal) = write(t.out_stream, "$(CSI)?2004h")
disable_bracketed_paste(t::UnixTerminal) = write(t.out_stream, "$(CSI)?2004l")
end_keypad_transmit_mode(t::UnixTerminal) = # tput rmkx
write(t.out_stream, "$(CSI)?1l\x1b>")
let s = zeros(Int32, 2)
function Base.size(t::TTYTerminal)
@windows_only if ispty(t.out_stream)
try
h,w = map(x->parse(Int,x),split(readall(open(`stty size`, "r", t.out_stream)[1])))
w > 0 || (w = 80)
h > 0 || (h = 24)
return h,w
catch
return 24,80
end
end
Base.uv_error("size (TTY)", ccall(:uv_tty_get_winsize,
Int32, (Ptr{Void}, Ptr{Int32}, Ptr{Int32}),
t.out_stream.handle, pointer(s,1), pointer(s,2)) != 0)
w,h = s[1],s[2]
w > 0 || (w = 80)
h > 0 || (h = 24)
(Int(h),Int(w))
end
end
clear(t::UnixTerminal) = write(t.out_stream, "\x1b[H\x1b[2J")
clear_line(t::UnixTerminal) = write(t.out_stream, "\x1b[0G\x1b[0K")
#beep(t::UnixTerminal) = write(t.err_stream,"\x7")
write{T,N}(t::UnixTerminal, a::Array{T,N}) = write(t.out_stream, a)
write(t::UnixTerminal, p::Ptr{UInt8}) = write(t.out_stream, p)
write(t::UnixTerminal, p::Ptr{UInt8}, x::Integer) = write(t.out_stream, p, x)
write(t::UnixTerminal, x::UInt8) = write(t.out_stream, x)
read{T,N}(t::UnixTerminal, x::Array{T,N}) = read(t.in_stream, x)
readuntil(t::UnixTerminal, s::AbstractString) = readuntil(t.in_stream, s)
readuntil(t::UnixTerminal, c::Char) = readuntil(t.in_stream, c)
readuntil(t::UnixTerminal, s) = readuntil(t.in_stream, s)
read(t::UnixTerminal, ::Type{UInt8}) = read(t.in_stream, UInt8)
start_reading(t::UnixTerminal) = start_reading(t.in_stream)
stop_reading(t::UnixTerminal) = stop_reading(t.in_stream)
eof(t::UnixTerminal) = eof(t.in_stream)
@unix_only hascolor(t::TTYTerminal) = (startswith(t.term_type, "xterm") || success(`tput setaf 0`))
@windows_only hascolor(t::TTYTerminal) = true
end # module
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