# Helpers for decimal ints. # if slice doesn't contain a decimal number, return 0 parse-decimal-int-from-slice: # in: (addr slice) -> out/eax: int # . prologue 55/push-ebp 89/<- %ebp 4/r32/esp # . save registers 51/push-ecx # ecx = in 8b/-> *(ebp+8) 1/r32/ecx # (parse-decimal-int-helper *ecx *(ecx+4)) # => eax $parse-decimal-int-from-slice:end: # . restore registers 59/pop-to-ecx # . epilogue 89/<- %esp 5/r32/ebp 5d/pop-to-ebp c3/return # if slice doesn't contain a decimal number, return 0 parse-decimal-int: # in: (addr array byte) -> result/eax: int # . prologue 55/push-ebp 89/<- %ebp 4/r32/esp # . save registers 51/push-ecx 52/push-edx # eax = in 8b/-> *(ebp+8) 0/r32/eax # var start/ecx: (addr byte) = &in->data 8d/copy-address *(eax+4) 1/r32/ecx # var end/edx: (addr byte) = &in->data[in->size] 8b/-> *eax 2/r32/edx 8d/copy-address *(eax+edx+4) 2/r32/edx # (parse-decimal-int-helper %ecx %edx) # => eax $parse-decimal-int:end: # . restore registers 5a/pop-to-edx 59/pop-to-ecx # . epilogue 89/<- %esp 5/r32/ebp 5d/pop-to-ebp c3/return parse-decimal-int-from-stream: # in: (addr stream byte) -> result/eax: int # . prologue 55/push-ebp 89/<- %ebp 4/r32/esp # . save registers 51/push-ecx 52/push-edx # eax = in 8b/-> *(ebp+8) 0/r32/eax # var start/ecx: (addr byte) = &in->data[in->read] 8b/-> *(eax+4) 1/r32/ecx 8d/copy-address *(eax+ecx+0xc) 1/r32/ecx # var end/edx: (addr byte) = &in->data[in->write] 8b/-> *eax 2/r32/edx 8d/copy-address *(eax+edx+0xc) 2/r32/edx # trim a trailing newline { # speculatively trim 4a/decrement-edx # if it's a newline, break 8a/byte-> *edx 0/r32/eax 25/and-eax-with 0xff/imm32 3d/compare-eax-and 0xa/imm32/newline 74/jump-if-= break/disp8 # not a newline, so restore it 42/increment-edx } # (parse-decimal-int-helper %ecx %edx) # => eax $parse-decimal-int-from-stream:end: # . restore registers 5a/pop-to-edx 59/pop-to-ecx # . epilogue 89/<- %esp 5/r32/ebp 5d/pop-to-ebp c3/return parse-decimal-int-helper: # start: (addr byte), end: (addr byte) -> result/eax: int # . prologue 55/push-ebp 89/<- %ebp 4/r32/esp # . save registers 51/push-ecx 52/push-edx 53/push-ebx 56/push-esi 57/push-edi # var curr/esi: (addr byte) = start 8b/-> *(ebp+8) 6/r32/esi # edi = end 8b/-> *(ebp+0xc) 7/r32/edi # var negate?/edx: boolean = false ba/copy-to-edx 0/imm32/false # if (*curr == '-') ++curr, negate = true { $parse-decimal-int-helper:negative: b8/copy-to-eax 0/imm32 8a/copy-byte *esi 0/r32/AL 3d/compare-eax-and 0x2d/imm32/- 75/jump-if-!= break/disp8 # . ++curr 46/increment-esi # . negate = true ba/copy-to-edx 1/imm32/true } # spill negate? 52/push-edx # var result/eax: int = 0 b8/copy-to-eax 0/imm32 # var digit/ecx: int = 0 b9/copy-to-ecx 0/imm32 # const TEN/ebx: int = 10 bb/copy-to-ebx 0xa/imm32 { $parse-decimal-int-helper:loop: # if (curr >= in->end) break 39/compare %esi 7/r32/edi 73/jump-if-addr>= break/disp8 # if !decimal-digit?(*curr) return 0 8a/copy-byte *esi 1/r32/CL 50/push-eax (decimal-digit? %ecx) # => eax { 3d/compare-eax-and 0/imm32/false 75/jump-if-!= break/disp8 58/pop-to-eax b8/copy-to-eax 0/imm32 eb/jump $parse-decimal-int-helper:negate/disp8 } 58/pop-to-eax # digit = from-decimal-char(*curr) 81 5/subop/subtract %ecx 0x30/imm32/zero # TODO: error checking # result = result * 10 + digit ba/copy-to-edx 0/imm32 f7 4/subop/multiply-into-edx-eax %ebx # TODO: check edx for overflow 01/add %eax 1/r32/ecx # ++curr 46/increment-esi # eb/jump loop/disp8 } $parse-decimal-int-helper:negate: # if (negate?) result = -result 5a/pop-to-edx { 81 7/subop/compare %edx 0/imm32/false 74/jump-if-= break/disp8 f7 3/subop/negate %eax } $parse-decimal-int-helper:end: # . restore registers 5f/pop-to-edi 5e/pop-to-esi 5b/pop-to-ebx 5a/pop-to-edx 59/pop-to-ecx # . epilogue 89/<- %esp 5/r32/ebp 5d/pop-to-ebp c3/return test-parse-decimal-int-from-slice-single-digit: # . prologue 55/push-ebp 8
# Tested with ranger 1.7.0 through ranger 1.7.*
#
# This plugin creates a FIFO in /tmp/ranger-ipc.<PID> to which any
# other program may write. Lines written to this file are evaluated by
# ranger as the ranger :commands.
#
# Example:
#   $ echo tab_new ~/images > /tmp/ranger-ipc.1234

import ranger.api

old_hook_init = ranger.api.hook_init


def hook_init(fm):
    try:
        # Create a FIFO.
        import os
        IPC_FIFO = "/tmp/ranger-ipc." + str(os.getpid())
        os.mkfifo(IPC_FIFO)

        # Start the reader thread.
        try:
            import thread
        except ImportError:
            import _thread as thread

        def ipc_reader(filepath):
            while True:
                with open(filepath, 'r') as fifo:
                    line = fifo.read()
                    fm.execute_console(line.strip())
        thread.start_new_thread(ipc_reader, (IPC_FIFO,))

        # Remove the FIFO on ranger exit.
        def ipc_cleanup(filepath):
            try:
                os.unlink(filepath)
            except IOError:
                pass
        import atexit
        atexit.register(ipc_cleanup, IPC_FIFO)
    except IOError:
        # IPC support disabled
        pass
    finally:
        old_hook_init(fm)
ranger.api.hook_init = hook_init
push 3/imm32 68/push 2/imm32 68/push 1/imm32 68/push 0xc/imm32/size 89/<- %ecx 4/r32/esp # (_parse-array-of-decimal-ints Heap "1 2 3" %esi) (lookup *esi *(esi+4)) # => eax (array-equal? %ecx %eax) # => eax (check-ints-equal %eax 1 "F - test-parse-array-of-decimal-ints") # . epilogue 89/<- %esp 5/r32/ebp 5d/pop-to-ebp c3/return test-parse-array-of-decimal-ints-empty: # - empty string = empty array # . prologue 55/push-ebp 89/<- %ebp 4/r32/esp # var h/esi: handle 68/push 0/imm32 68/push 0/imm32 89/<- %esi 4/r32/esp # (_parse-array-of-decimal-ints Heap "" %esi) (lookup *esi *(esi+4)) # => eax (check-ints-equal *eax 0 "F - test-parse-array-of-decimal-ints-empty") # . epilogue 89/<- %esp 5/r32/ebp 5d/pop-to-ebp c3/return test-parse-array-of-decimal-ints-just-whitespace: # - just whitespace = empty array # . prologue 55/push-ebp 89/<- %ebp 4/r32/esp # var h/esi: handle 68/push 0/imm32 68/push 0/imm32 89/<- %esi 4/r32/esp # (_parse-array-of-decimal-ints Heap Space %esi) (lookup *esi *(esi+4)) # => eax (check-ints-equal *eax 0 "F - test-parse-array-of-decimal-ints-just-whitespace") # . epilogue 89/<- %esp 5/r32/ebp 5d/pop-to-ebp c3/return test-parse-array-of-decimal-ints-extra-whitespace: # . prologue 55/push-ebp 89/<- %ebp 4/r32/esp # var h/esi: handle 68/push 0/imm32 68/push 0/imm32 89/<- %esi 4/r32/esp # var ecx: (array int) = [1, 2, 3] 68/push 3/imm32 68/push 2/imm32 68/push 1/imm32 68/push 0xc/imm32/size 89/<- %ecx 4/r32/esp # (_parse-array-of-decimal-ints Heap " 1 2 3 " %esi) (lookup *esi *(esi+4)) # => eax (array-equal? %ecx %eax) # => eax (check-ints-equal %eax 1 "F - test-parse-array-of-decimal-ints-extra-whitespace") # . epilogue 89/<- %esp 5/r32/ebp 5d/pop-to-ebp c3/return parse-array-of-decimal-ints: # s: (addr array byte), out: (addr handle array int) # . prologue 55/push-ebp 89/<- %ebp 4/r32/esp # (_parse-array-of-decimal-ints Heap *(ebp+8) *(ebp+0xc)) $parse-array-of-decimal-ints:end: # . epilogue 89/<- %esp 5/r32/ebp 5d/pop-to-ebp c3/return