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# Copyright 2002, 2003, 2007, 2008 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 3 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program.  If not, see .

# Please email any bugs, comments, and/or additions to this file to:

# bug-gdb@prep.ai.mit.edu

# This file was written by Tom Tromey 

# This file is part of the gdb testsuite.

#

# Tests for readline operations.

#

# This function is used to test operate-and-get-next.

# NAME is the name of the test.

# ARGS is a list of alternating commands and expected results.

proc operate_and_get_next {name args} {

  global gdb_prompt

  set my_gdb_prompt "($gdb_prompt| >)"

  set reverse {}

  foreach {item result} $args {

    verbose "sending $item"

    sleep 1

    # We can't use gdb_test here because we might see a " >" prompt.

    set status 0

    send_gdb "$item\n"

    gdb_expect {

      -re "$item" {

        # Ok

      }

      timeout {

        set status 1

      }

    }

    if {! $status} {

      gdb_expect {

        -re "$result" {

          # Ok.

        }

        timeout {

          set status 1

        }

      }

    }

    if {$status} {

      fail "$name - send $item"

      return 0

    }

    pass "$name - send $item"

    set reverse [linsert $reverse 0 $item $result]

  }

  # Now use C-p to go back to the start.

  foreach {item result} $reverse {

    # Actually send C-p followed by C-l.  This lets us recognize the

    # command when gdb prints it again.

    send_gdb "\x10\x0c"

    set status 0

    gdb_expect {

      -re "$item" {

        # Ok

      }

      timeout {

        set status 1

      }

    }

    if {$status} {

      fail "$name - C-p to $item"

      return 0

    }

    pass "$name - C-p to $item"

  }

  # Now C-o through the list.  Don't send the command, since it is

  # already there.  Strip off the first command from the list so we

  # can see the next command inside the loop.

  set count 0

  foreach {item result} $args {

    set status 0

    # If this isn't the first item, make sure we see the command at

    # the prompt.

    if {$count > 0} {

      gdb_expect {

        -re ".*$item" {

          # Ok

        }

        timeout {

          set status 1

        }

      }

    }

    if {! $status} {

      # For the last item, send a simple \n instead of C-o.

      if {$count == [llength $args] - 2} {

        send_gdb "\n"

      } else {

        # 15 is C-o.

        send_gdb [format %c 15]

      }

      set status 0

      gdb_expect {

        -re "$result" {

          # Ok

        }

        timeout {

          set status 1

        }

      }

    }

    if {$status} {

      fail "$name - C-o for $item"

      return 0

    }

    pass "$name - C-o for $item"

    set count [expr {$count + 2}]

  }

  # Match the prompt so the next test starts at the right place.

  gdb_test "" "" "$name - final prompt"

  return 1

}

if $tracelevel {

  strace $tracelevel

}

# Don't let a .inputrc file or an existing setting of INPUTRC mess up

# the test results.  Even if /dev/null doesn't exist on the particular

# platform, the readline library will use the default setting just by

# failing to open the file.  OTOH, opening /dev/null successfully will

# also result in the default settings being used since nothing will be

# read from this file.

global env

if [info exists env(INPUTRC)] {

    set old_inputrc $env(INPUTRC)

}

set env(INPUTRC) "/dev/null"

# The arrow key test relies on the standard VT100 bindings, so make

# sure that an appropriate terminal is selected.  The same bug

# doesn't show up if we use ^P / ^N instead.

if [info exists env(TERM)] {

    set old_term $env(TERM)

}

set env(TERM) "vt100"

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

set oldtimeout1 $timeout

set timeout 30

# A simple test of operate-and-get-next.

operate_and_get_next "Simple operate-and-get-next" \

  "p 1" ".* = 1" \

  "p 2" ".* = 2" \

  "p 3" ".* = 3"

# Test operate-and-get-next with a secondary prompt.

operate_and_get_next "operate-and-get-next with secondary prompt" \

  "if 1 > 0" "" \

  "p 5" "" \

  "end" ".* = 5"

# Verify that arrow keys work in secondary prompts.  The control

# sequence is a hard-coded VT100 up arrow.

gdb_test "print 42" "\\\$\[0-9\]* = 42"

set msg "arrow keys with secondary prompt"

gdb_test_multiple "if 1 > 0\n\033\[A\033\[A\nend" $msg {

    -re ".*\\\$\[0-9\]* = 42\r\n$gdb_prompt $" {

        pass $msg

    }

    -re ".*Undefined command:.*$gdb_prompt $" {

        fail $msg

    }

}

# Now repeat the first test with a history file that fills the entire

# history list.

if [info exists env(GDBHISTFILE)] {

    set old_gdbhistfile $env(GDBHISTFILE)

}

if [info exists env(HISTSIZE)] {

    set old_histsize $env(HISTSIZE)

}

set env(GDBHISTFILE) "${srcdir}/${subdir}/gdb_history"

set env(HISTSIZE) "10"

gdb_exit

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

operate_and_get_next "Simple operate-and-get-next" \

  "p 7" ".* = 7" \

  "p 8" ".* = 8" \

  "p 9" ".* = 9"

# Restore globals modified in this test...

if [info exists old_inputrc] {

    set env(INPUTRC) $old_inputrc

} else {

    unset env(INPUTRC)

}

if [info exists old_gdbhistfile] {

    set env(GDBHISTFILE) $old_gdbhistfile

} else {

    unset env(GDBHISTFILE)

}

if [info exists old_histsize] {

    set env(HISTSIZE) $old_histsize

} else {

    unset env(HISTSIZE)

}

set timeout $oldtimeout1

return 0