# Tokenize by whitespace. == 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 # (re)compute the bounds of the next word in the line (surrounded by whitespace, # treating '#' comments as a single word) # return empty string on reaching end of file next-word: # line: (addr stream byte), out: (addr slice) # . 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 56/push-esi 57/push-edi # esi = line 8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 8/disp8 . # copy *(ebp+8) to esi # edi = out 8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 7/r32/edi 0xc/disp8 . # copy *(ebp+12) to edi # skip-chars-matching-whitespace(line) # . . push args ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 8/disp8 . # push *(ebp+8) # . . call e8/call skip-chars-matching-whitespace/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp $next-word:check0: # if (line->read >= line->write) clear out and return # . eax = line->read 8b/copy 1/mod/*+disp8 6/rm32/esi . . . 0/r32/eax 4/disp8 . # copy *(esi+4) to eax # . if (eax < line->write) goto next check 3b/compare 0/mod/indirect 6/rm32/esi . . . 0/r32/eax . . # compare eax with *esi 7c/jump-if-< $next-word:check-for-comment/disp8 # . return out c7 0/subop/copy 0/mod/direct 7/rm32/edi . . . . . 0/imm32 # copy to *edi c7 0/subop/copy 1/mod/*+disp8 7/rm32/edi . . . . 4/disp8 0/imm32 # copy to *(edi+4) eb/jump $next-word:end/disp8 $next-word:check-for-comment: # out->start = &line->data[line->read] 8b/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy *(esi+4) to ecx 8d/copy-address 1/mod/*+disp8 4/rm32/sib 6/base/esi 1/index/ecx . 0/r32/eax 0xc/disp8 . # copy esi+ecx+12 to eax 89/copy 0/mod/indirect 7/rm32/edi . . . 0/r32/eax . . # copy eax to *edi # if (line->data[line->read] == '#') out->end = &line->data[line->write]), skip rest of stream and return # . eax = line->data[line->read] 31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax 8a/copy-byte 1/mod/*+disp8 4/rm32/sib 6/base/esi 1/index/ecx . 0/r32/AL 0xc/disp8 . # copy byte at *(esi+ecx+12) to AL # . compare 3d/compare-eax-and 0x23/imm32/pound 75/jump-if-!= $next-word:regular-word/disp8 $next-word:comment: # . out->end = &line->data[line->write] 8b/copy 0/mod/indirect 6/rm32/esi . . . 0/r32/eax . . # copy *esi to eax 8d/copy-address 1/mod/*+disp8 4/rm32/sib 6/base/esi 0/index/eax . 0/r32/eax 0xc/disp8 . # copy esi+eax+12 to eax 89/copy 1/mod/*+disp8 7/rm32/edi . . . 0/r32/eax 4/disp8 . # copy eax to *(edi+4) # . line->read = line->write 8b/copy 0/mod/indirect 6/rm32/esi . . . 0/r32/eax . . # copy *esi to eax 89/copy 1/mod/*+disp8 6/rm32/esi . . . 0/r32/eax 4/disp8 . # copy eax to *(esi+4) # . return eb/jump $next-word:end/disp8 $next-word:regular-word: # otherwise skip-chars-not-matching-whitespace(line) # including trailing newline # . . push args ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 8/disp8 . # push *(ebp+8) # . . call e8/call skip-chars-not-matching-whitespace/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp # out->end = &line->data[line->read] 8b/copy 1/mod/*+disp8 6/rm32/esi . . . 1/r32/ecx 4/disp8 . # copy *(esi+4) to ecx 8d/copy-address 1/mod/*+disp8 4/rm32/sib 6/base/esi 1/index/ecx . 0/r32/eax 0xc/disp8 . # copy esi+ecx+12 to eax 89/copy 1/mod/*+disp8 7/rm32/edi . . . 0/r32/eax 4/disp8 . # copy eax to *(edi+4) $next-word:end: # . restore registers 5f/pop-to-edi 5e/pop-to-esi 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-next-word: # . prologue 55/push-ebp 89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp # 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 # var slice/ecx: slice 68/push 0/imm32/end 68/push 0/imm32/start 89/copy 3/mod/direct 1/rm32/ecx . . . 4/r32/esp . . # copy esp to ecx # write(_test-stream, " ab") # . . push args 68/push " ab"/imm32 68/push _test-stream/imm32 # . . call e8/call write/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp # next-word(_test-stream, slice) # . . push args 51/push-ecx 68/push _test-stream/imm32 # . . call e8/call next-word/disp32 # . . disc
package msg
import (
"errors"
"fmt"
"io"
"os/exec"
"time"
"git.sr.ht/~sircmpwn/aerc/commands"
"git.sr.ht/~sircmpwn/aerc/widgets"
"git.sr.ht/~sircmpwn/aerc/worker/types"
"git.sr.ht/~sircmpwn/getopt"
"github.com/gdamore/tcell"
)
type Pipe struct{}
func init() {
register(Pipe{})
}
func (Pipe) Aliases() []string {
return []string{"pipe"}
}
func (Pipe) Complete(aerc *widgets.Aerc, args []string) []string {
return nil
}
func (Pipe) Execute(aerc *widgets.Aerc, args []string) error {
var (
background bool
pipeFull bool
pipePart bool
)
// TODO: let user specify part by index or preferred mimetype
opts, optind, err := getopt.Getopts(args, "bmp")
if err != nil {
return err
}
for _, opt := range opts {
switch opt.Option {
case 'b':
background = true
case 'm':
if pipePart {
return errors.New("-m and -p are mutually exclusive")
}
pipeFull = true
case 'p':
if pipeFull {
return errors.New("-m and -p are mutually exclusive")
}
pipePart = true
}
}
cmd := args[optind:]
if len(cmd) == 0 {
return errors.New("Usage: pipe [-mp] <cmd> [args...]")
}
provider := aerc.SelectedTab().(widgets.ProvidesMessage)
if !pipeFull && !pipePart {
if _,