[haskeline] #110: Pressing Enter results in M

[haskeline]

#110: Pressing Enter results in M
-------------------+--------------------------------------------------------
Reporter:  guest   |        Owner:  judah   
    Type:  defect  |       Status:  assigned
Priority:  major   |    Milestone:          
 Version:  0.6     |   Resolution:          
Keywords:          |  
-------------------+--------------------------------------------------------
Comment (by guest):

 thanks.. I don't have sufficient expertise to interpret the outputs
 though...


 {{{
 $ stty -a

 speed 38400 baud; rows 24; columns 80; line = 0;
 intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = M-^?; eol2 =
 M-^?;
 swtch = M-^?; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; werase = ^W;
 lnext = ^V; flush = ^O; min = 1; time = 0;
 -parenb -parodd cs8 hupcl -cstopb cread -clocal -crtscts
 -ignbrk brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl ixon
 -ixoff
 -iuclc ixany imaxbel iutf8
 opost -olcuc -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0
 vt0 ff0
 isig icanon iexten echo echoe echok -echonl -noflsh -xcase -tostop
 -echoprt
 echoctl echoke

 $ echo $TERM
 xterm

 $ infocmp
 #       Reconstructed via infocmp from file: /lib/terminfo/x/xterm
 xterm|X11 terminal emulator,
         am, bce, km, mc5i, mir, msgr, npc, xenl,
         colors#8, cols#80, it#8, lines#24, pairs#64,
         acsc=``aaffggiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~,
         bel=^G, blink=\E[5m, bold=\E[1m, cbt=\E[Z, civis=\E[?25l,
         clear=\E[H\E[2J, cnorm=\E[?12l\E[?25h, cr=^M,
         csr=\E[%i%p1%d;%p2%dr, cub=\E[%p1%dD, cub1=^H,
         cud=\E[%p1%dB, cud1=^J, cuf=\E[%p1%dC, cuf1=\E[C,
         cup=\E[%i%p1%d;%p2%dH, cuu=\E[%p1%dA, cuu1=\E[A,
         cvvis=\E[?12;25h, dch=\E[%p1%dP, dch1=\E[P, dl=\E[%p1%dM,
         dl1=\E[M, ech=\E[%p1%dX, ed=\E[J, el=\E[K, el1=\E[1K,
         flash=\E[?5h$<100/>\E[?5l, home=\E[H, hpa=\E[%i%p1%dG,
         ht=^I, hts=\EH, ich=\E[%p1%d@, il=\E[%p1%dL, il1=\E[L,
         ind=^J, indn=\E[%p1%dS, invis=\E[8m,
         is2=\E[!p\E[?3;4l\E[4l\E>, kDC=\E[3;2~, kEND=\E[1;2F,
         kHOM=\E[1;2H, kIC=\E[2;2~, kLFT=\E[1;2D, kNXT=\E[6;2~,
         kPRV=\E[5;2~, kRIT=\E[1;2C, kb2=\EOE, kbs=\177, kcbt=\E[Z,
         kcub1=\EOD, kcud1=\EOB, kcuf1=\EOC, kcuu1=\EOA,
         kdch1=\E[3~, kend=\EOF, kent=\EOM, kf1=\EOP, kf10=\E[21~,
         kf11=\E[23~, kf12=\E[24~, kf13=\EO2P, kf14=\EO2Q,
         kf15=\EO2R, kf16=\EO2S, kf17=\E[15;2~, kf18=\E[17;2~,
         kf19=\E[18;2~, kf2=\EOQ, kf20=\E[19;2~, kf21=\E[20;2~,
         kf22=\E[21;2~, kf23=\E[23;2~, kf24=\E[24;2~, kf25=\EO5P,
         kf26=\EO5Q, kf27=\EO5R, kf28=\EO5S, kf29=\E[15;5~,
         kf3=\EOR, kf30=\E[17;5~, kf31=\E[18;5~, kf32=\E[19;5~,
         kf33=\E[20;5~, kf34=\E[21;5~, kf35=\E[23;5~,
         kf36=\E[24;5~, kf37=\EO6P, kf38=\EO6Q, kf39=\EO6R,
         kf4=\EOS, kf40=\EO6S, kf41=\E[15;6~, kf42=\E[17;6~,
         kf43=\E[18;6~, kf44=\E[19;6~, kf45=\E[20;6~,
         kf46=\E[21;6~, kf47=\E[23;6~, kf48=\E[24;6~, kf49=\EO3P,
         kf5=\E[15~, kf50=\EO3Q, kf51=\EO3R, kf52=\EO3S,
         kf53=\E[15;3~, kf54=\E[17;3~, kf55=\E[18;3~,
         kf56=\E[19;3~, kf57=\E[20;3~, kf58=\E[21;3~,
         kf59=\E[23;3~, kf6=\E[17~, kf60=\E[24;3~, kf61=\EO4P,
         kf62=\EO4Q, kf63=\EO4R, kf7=\E[18~, kf8=\E[19~, kf9=\E[20~,
         khome=\EOH, kich1=\E[2~, kmous=\E[M, knp=\E[6~, kpp=\E[5~,
         mc0=\E[i, mc4=\E[4i, mc5=\E[5i, meml=\El, memu=\Em,
         op=\E[39;49m, rc=\E8, rev=\E[7m, ri=\EM, rin=\E[%p1%dT,
         rmacs=\E(B, rmam=\E[?7l, rmcup=\E[?1049l, rmir=\E[4l,
         rmkx=\E[?1l\E>, rmso=\E[27m, rmul=\E[24m, rs1=\Ec,
         rs2=\E[!p\E[?3;4l\E[4l\E>, sc=\E7, setab=\E[4%p1%dm,
         setaf=\E[3%p1%dm,
 setb=\E[4%?%p1%{1}%=%t4%e%p1%{3}%=%t6%e%p1%{4}%=%t1%e%p1%{6}%=%t3%e%p1%d%;m,
 setf=\E[3%?%p1%{1}%=%t4%e%p1%{3}%=%t6%e%p1%{4}%=%t1%e%p1%{6}%=%t3%e%p1%d%;m,
 sgr=\E[0%?%p6%t;1%;%?%p2%t;4%;%?%p1%p3%|%t;7%;%?%p4%t;5%;%?%p7%t;8%;m%?%p9%t\E(0%e\E(B%;,
         sgr0=\E[m\E(B, smacs=\E(0, smam=\E[?7h, smcup=\E[?1049h,
         smir=\E[4h, smkx=\E[?1h\E=, smso=\E[7m, smul=\E[4m,
         tbc=\E[3g, u6=\E[%i%d;%dR, u7=\E[6n, u8=\E[?1;2c, u9=\E[c,
         vpa=\E[%i%p1%dd,

 $ ghc -e getChar
 '\n'

 }}}
 calling `getChar` at GHCi and pressing `Enter` results in `'\n'`, as
 expected (?!).

 This is on GNOME-terminal.

 If this is my machine specific, could you please suggest a workaround? I
 love playing with GHCi.

-- 
Ticket URL: <http://trac.haskell.org/haskeline/ticket/110#comment:3>
haskeline <http://example.org/>
My example project