doc/pydoc/ranger.gui.widgets.console_mode.html


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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html><head><title>Python: module ranger.gui.widgets.console_mode</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head><body bgcolor="#f0f0f8">

<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="heading">
<tr bgcolor="#7799ee">
<td valign=bottom>&nbsp;<br>
<font color="#ffffff" face="helvetica, arial">&nbsp;<br><big><big><strong><a href="ranger.html"><font color="#ffffff">ranger</font></a>.<a href="ranger.gui.html"><font color="#ffffff">gui</font></a>.<a href="ranger.gui.widgets.html"><font color="#ffffff">widgets</font></a>.console_mode</strong></big></big></font></td
><td align=right valign=bottom
><font color="#ffffff" face="helvetica, arial"><a href=".">index</a><br><a href="file:/home/hut/work/ranger/ranger/gui/widgets/console_mode.py">/home/hut/work/ranger/ranger/gui/widgets/console_mode.py</a></font></td></tr></table>
    <p></p>
<p>
<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#eeaa77">
<td colspan=3 valign=bottom>&nbsp;<br>
<font color="#ffffff" face="helvetica, arial"><big><strong>Functions</strong></big></font></td></tr>
    
<tr><td bgcolor="#eeaa77"><tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</tt></td><td>&nbsp;</td>
<td width="100%"><dl><dt><a name="-all_modes"><strong>all_modes</strong></a>(mode)</dt><dd><tt>Returns&nbsp;a&nbsp;generator&nbsp;containing&nbsp;all&nbsp;valid&nbsp;modes.</tt></dd></dl>
 <dl><dt><a name="-is_valid_mode"><strong>is_valid_mode</strong></a>(mode)</dt><dd><tt>Returns&nbsp;True&nbsp;or&nbsp;False&nbsp;depending&nbsp;on&nbsp;whether&nbsp;the&nbsp;mode&nbsp;is&nbsp;valid&nbsp;or&nbsp;not.</tt></dd></dl>
 <dl><dt><a name="-mode_to_class"><strong>mode_to_class</strong></a>(mode)</dt><dd><tt>Associates&nbsp;modes&nbsp;with&nbsp;the&nbsp;actual&nbsp;classes<br>
from&nbsp;ranger.gui.widgets.console.</tt></dd></dl>
</td></tr></table><p>
<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#55aa55">
<td colspan=3 valign=bottom>&nbsp;<br>
<font color="#ffffff" face="helvetica, arial"><big><strong>Data</strong></big></font></td></tr>
    
<tr><td bgcolor="#55aa55"><tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</tt></td><td>&nbsp;</td>
<td width="100%"><strong>COMMAND</strong> = 1<br>
<strong>COMMAND_QUICK</strong> = 2<br>
<strong>DEFAULT</strong> = 0<br>
<strong>OPEN</strong> = 3<br>
<strong>OPEN_QUICK</strong> = 4<br>
<strong>SEARCH</strong> = 5</td></tr></table>
</body></html>
# Write out the (hex) textual representation of numbers.

== code
#   instruction                     effective address                                                   register    displacement    immediate
# . op          subop               mod             rm32          base        index         scale       r32
# . 1-3 bytes   3 bits              2 bits          3 bits        3 bits      3 bits        2 bits      2 bits      0/1/2/4 bytes   0/1/2/4 bytes

# convert the lowest nibble of eax to ascii and return it in the lowest byte of eax
to-hex-char:  # in/eax: int -> out/eax: int
    # no error checking; accepts argument in eax
    # if (eax <= 9) return eax + '0'
    3d/compare-eax-with  0x9/imm32/9
    7f/jump-if->  $to-hex-char:else/disp8
    05/add-to-eax  0x30/imm32/0
    c3/return
$to-hex-char:else:
    # otherwise return eax + 'a' - 10
    05/add-to-eax  0x57/imm32/a-10
    c3/return

append-byte-hex:  # f: (addr stream byte), n: int
    # . prologue
    55/push-ebp
    89/copy                         3/mod/direct    5/rm32/ebp    .           .             .           4/r32/esp   .               .                 # copy esp to ebp
    # . save registers
    50/push-eax
    # AL = convert upper nibble to hex
    8b/copy                         1/mod/*+disp8   5/rm32/ebp    .           .             .           0/r32/eax   0xc/disp8       .                 # copy *(ebp+12) to eax
    c1/shift    5/subop/logic-right 3/mod/direct    0/rm32/eax    .           .             .           .           .               4/imm8            # shift eax right by 4 bits, while padding zeroes
    25/and-eax  0xf/imm32
    # . AL = to-hex-char(AL)
    e8/call  to-hex-char/disp32
    # append-byte(f, AL)
    # . . push args
    50/push-eax
    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp    .           .             .           .           8/disp8         .                 # push *(ebp+8)
    # . . call
    e8/call  append-byte/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
    # AL = convert lower nibble to hex
    8b/copy                         1/mod/*+disp8   5/rm32/ebp    .           .             .           0/r32/eax   0xc/disp8       .                 # copy *(ebp+12) to eax
    25/and-eax  0xf/imm32
    # . AL = to-hex-char(AL)
    e8/call  to-hex-char/disp32
    # append-byte(f, AL)
    # . . push args
    50/push-eax
    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp    .           .             .           .           8/disp8         .                 # push *(ebp+8)
    # . . call
    e8/call  append-byte/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
$append-byte-hex:end:
    # . restore registers
    58/pop-to-eax
    # . epilogue
    89/copy                         3/mod/direct    4/rm32/esp    .           .             .           5/r32/ebp   .               .                 # copy ebp to esp
    5d/pop-to-ebp
    c3/return

test-append-byte-hex:
    # - check that append-byte-hex adds the hex textual representation
    # setup
    # . clear-stream(_test-stream)
    # . . push args
    68/push  _test-stream/imm32
    # . . call
    e8/call  clear-stream/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
    # append-byte-hex(_test-stream, 0xa)  # exercises digit, non-digit as well as leading zero
    # . . push args
    68/push  0xa/imm32
    68/push  _test-stream/imm32
    # . . call
    e8/call  append-byte-hex/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
    # check-stream-equal(_test-stream, "0a", msg)
    # . . push args
    68/push  "F - test-append-byte-hex"/imm32
    68/push  "0a"/imm32
    68/push  _test-stream/imm32
    # . . call
    e8/call  check-stream-equal/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               0xc/imm32         # add to esp
    # . end
    c3/return

# print the hex representation for the lowest byte of a number
write-byte-hex-buffered:  # f: (addr buffered-file), n: int
    # . prologue
    55/push-ebp
    89/copy                         3/mod/direct    5/rm32/ebp    .           .             .           4/r32/esp   .               .                 # copy esp to ebp
    # . save registers
    50/push-eax
    # AL = convert upper nibble to hex
    8b/copy                         1/mod/*+disp8   5/rm32/ebp    .           .             .           0/r32/eax   0xc/disp8       .                 # copy *(ebp+12) to eax
    c1/shift    5/subop/logic-right 3/mod/direct    0/rm32/eax    .           .             .           .           .               4/imm8            # shift eax right by 4 bits, while padding zeroes
    25/and-eax  0xf/imm32
    # . AL = to-hex-char(AL)
    e8/call  to-hex-char/disp32
    # write-byte-buffered(f, AL)
    # . . push args
    50/push-eax
    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp    .           .             .           .           8/disp8         .                 # push *(ebp+8)
    # . . call
    e8/call  write-byte-buffered/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
    # AL = convert lower nibble to hex
    8b/copy                         1/mod/*+disp8   5/rm32/ebp    .           .             .           0/r32/eax   0xc/disp8       .                 # copy *(ebp+12) to eax
    25/and-eax  0xf/imm32
    # . AL = to-hex-char(AL)
    e8/call  to-hex-char/disp32
    # write-byte-buffered(f, AL)
    # . . push args
    50/push-eax
    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp    .           .             .           .           8/disp8         .                 # push *(ebp+8)
    # . . call
    e8/call  write-byte-buffered/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
$write-byte-hex-buffered:end:
    # . restore registers
    58/pop-to-eax
    # . epilogue
    89/copy                         3/mod/direct    4/rm32/esp    .           .             .           5/r32/ebp   .               .                 # copy ebp to esp
    5d/pop-to-ebp
    c3/return

test-write-byte-hex-buffered:
    # - check that write-byte-hex-buffered prints the hex textual representation
    # setup
    # . clear-stream(_test-stream)
    # . . push args
    68/push  _test-stream/imm32
    # . . call
    e8/call  clear-stream/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
    # . clear-stream($_test-buffered-file->buffer)
    # . . push args
    68/push  $_test-buffered-file->buffer/imm32
    # . . call
    e8/call  clear-stream/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
    # write-byte-hex-buffered(_test-buffered-file, 0xa)  # exercises digit, non-digit as well as leading zero
    # . . push args
    68/push  0xa/imm32
    68/push  _test-buffered-file/imm32
    # . . call
    e8/call  write-byte-hex-buffered/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
    # flush(_test-buffered-file)
    # . . push args
    68/push  _test-buffered-file/imm32
    # . . call
    e8/call  flush/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
    # check-stream-equal(_test-stream, "0a", msg)
    # . . push args
    68/push  "F - test-write-byte-hex-buffered"/imm32
    68/push  "0a"/imm32
    68/push  _test-stream/imm32
    # . . call
    e8/call  check-stream-equal/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               0xc/imm32         # add to esp
    # . end
    c3/return

write-int32-hex:  # f: (addr stream byte), n: int
    # pseudocode:
    #  write(f, "0x")
    #  ecx = 28
    #  while true
    #    if (ecx < 0) break
    #    eax = n >> ecx
    #    eax = eax & 0xf
    #    append-byte(f, AL)
    #    ecx -= 4
    #
    # . prologue
    55/push-ebp
    89/copy                         3/mod/direct    5/rm32/ebp    .           .             .           4/r32/esp   .               .                 # copy esp to ebp
    # . save registers
    50/push-eax
    51/push-ecx
    # ecx = 28
    b9/copy-to-ecx  0x1c/imm32
$write-int32-hex:hex-prefix:
    # write(f, "0x")
    # . . push args
    68/push  "0x"/imm32
    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp    .           .             .           .           8/disp8         .                 # push *(ebp+8)
    # . . call
    e8/call  write/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
$write-int32-hex:loop:
    # if (ecx < 0) break
    81          7/subop/compare     3/mod/direct    1/rm32/ecx    .           .             .           .           .               0/imm32           # compare ecx
    7c/jump-if-<  $write-int32-hex:end/disp8
    # eax = n >> ecx
    8b/copy                         1/mod/*+disp8   5/rm32/ebp    .           .             .           0/r32/eax   0xc/disp8       .                 # copy *(ebp+12) to eax
    d3/>>ecx    5/subop/pad-zeroes  3/mod/direct    0/rm32/eax    .           .             .           .           .               .                 # shift eax right by ecx bits, padding zeroes
    # eax = to-hex-char(AL)
    25/and-eax  0xf/imm32
    e8/call  to-hex-char/disp32
    # append-byte(f, AL)
    # . . push args
    50/push-eax
    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp    .           .             .           .           8/disp8         .                 # push *(ebp+8)
    # . . call
    e8/call  append-byte/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
    # ecx -= 4
    81          5/subop/subtract    3/mod/direct    1/rm32/ecx    .           .             .           .           .               4/imm32           # subtract from ecx
    eb/jump  $write-int32-hex:loop/disp8
$write-int32-hex:end:
    # . restore registers
    59/pop-to-ecx
    58/pop-to-eax
    # . epilogue
    89/copy                         3/mod/direct    4/rm32/esp    .           .             .           5/r32/ebp   .               .                 # copy ebp to esp
    5d/pop-to-ebp
    c3/return

test-write-int32-hex:
    # - check that write-int32-hex prints the hex textual representation
    # setup
    # . clear-stream(_test-stream)
    # . . push args
    68/push  _test-stream/imm32
    # . . call
    e8/call  clear-stream/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
    # write-int32-hex(_test-stream, 0x8899aa)
    # . . push args
    68/push  0x8899aa/imm32
    68/push  _test-stream/imm32
    # . . call
    e8/call  write-int32-hex/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
    # check-stream-equal(_test-stream, "0x008899aa", msg)
    # . . push args
    68/push  "F - test-write-int32-hex"/imm32
    68/push  "0x008899aa"/imm32
    68/push  _test-stream/imm32
    # . . call
    e8/call  check-stream-equal/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               0xc/imm32         # add to esp
    # . end
    c3/return

write-int32-hex-buffered:  # f: (addr buffered-file), n: int
    # pseudocode:
    #  write-buffered(f, "0x")
    #  ecx = 28
    #  while true
    #    if (ecx < 0) break
    #    eax = n >> ecx
    #    eax = eax & 0xf
    #    write-byte-buffered(f, AL)
    #    ecx -= 4
    #
    # . prologue
    55/push-ebp
    89/copy                         3/mod/direct    5/rm32/ebp    .           .             .           4/r32/esp   .               .                 # copy esp to ebp
    # . save registers
    50/push-eax
    51/push-ecx
    # ecx = 28
    b9/copy-to-ecx  0x1c/imm32
$write-int32-hex-buffered:hex-prefix:
    # write-buffered(f, "0x")
    # . . push args
    68/push  "0x"/imm32
    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp    .           .             .           .           8/disp8         .                 # push *(ebp+8)
    # . . call
    e8/call  write-buffered/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
$write-int32-hex-buffered:loop:
    # if (ecx < 0) break
    81          7/subop/compare     3/mod/direct    1/rm32/ecx    .           .             .           .           .               0/imm32           # compare ecx
    7c/jump-if-<  $write-int32-hex-buffered:end/disp8
    # eax = n >> ecx
    8b/copy                         1/mod/*+disp8   5/rm32/ebp    .           .             .           0/r32/eax   0xc/disp8       .                 # copy *(ebp+12) to eax
    d3/>>ecx    5/subop/pad-zeroes  3/mod/direct    0/rm32/eax    .           .             .           .           .               .                 # shift eax right by ecx bits, padding zeroes
    # eax = to-hex-char(AL)
    25/and-eax  0xf/imm32
    e8/call  to-hex-char/disp32
    # write-byte-buffered(f, AL)
    # . . push args
    50/push-eax
    ff          6/subop/push        1/mod/*+disp8   5/rm32/ebp    .           .             .           .           8/disp8         .                 # push *(ebp+8)
    # . . call
    e8/call  write-byte-buffered/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
    # ecx -= 4
    81          5/subop/subtract    3/mod/direct    1/rm32/ecx    .           .             .           .           .               4/imm32           # subtract from ecx
    eb/jump  $write-int32-hex-buffered:loop/disp8
$write-int32-hex-buffered:end:
    # . restore registers
    59/pop-to-ecx
    58/pop-to-eax
    # . epilogue
    89/copy                         3/mod/direct    4/rm32/esp    .           .             .           5/r32/ebp   .               .                 # copy ebp to esp
    5d/pop-to-ebp
    c3/return

test-write-int32-hex-buffered:
    # - check that write-int32-hex-buffered prints the hex textual representation
    # setup
    # . clear-stream(_test-stream)
    # . . push args
    68/push  _test-stream/imm32
    # . . call
    e8/call  clear-stream/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
    # . clear-stream($_test-buffered-file->buffer)
    # . . push args
    68/push  $_test-buffered-file->buffer/imm32
    # . . call
    e8/call  clear-stream/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
    # write-int32-hex-buffered(_test-buffered-file, 0x8899aa)
    # . . push args
    68/push  0x8899aa/imm32
    68/push  _test-buffered-file/imm32
    # . . call
    e8/call  write-int32-hex-buffered/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
    # flush(_test-buffered-file)
    # . . push args
    68/push  _test-buffered-file/imm32
    # . . call
    e8/call  flush/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               4/imm32           # add to esp
#?     # dump line {{{
#?     # . write-stream(2/stderr, line)
#?     # . . push args
#?     68/push  _test-stream/imm32
#?     68/push  2/imm32/stderr
#?     # . . call
#?     e8/call  write-stream/disp32
#?     # . . discard args
#?     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
#?     # . write(2/stderr, "$\n")
#?     # . . push args
#?     68/push  "$\n"/imm32
#?     68/push  2/imm32/stderr
#?     # . . call
#?     e8/call  write/disp32
#?     # . . discard args
#?     81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               8/imm32           # add to esp
#?     # }}}
    # check-stream-equal(_test-stream, "0x008899aa", msg)
    # . . push args
    68/push  "F - test-write-int32-hex-buffered"/imm32
    68/push  "0x008899aa"/imm32
    68/push  _test-stream/imm32
    # . . call
    e8/call  check-stream-equal/disp32
    # . . discard args
    81          0/subop/add         3/mod/direct    4/rm32/esp    .           .             .           .           .               0xc/imm32         # add to esp
    # . end
    c3/return

# . . vim:nowrap:textwidth=0