func (sel eSel) matches(rexp []rune, neg bool) ([][]sre.Range, error) {
re, err := sre.Compile(rexp, sre.Fwd)
if err != nil {
return nil, err
}
sels := make([][]sre.Range, 0)
for sel.P0 < sel.P1 {
rgs := re.Exec(sel.F, sel.P0, sel.P1)
dprintf("match sel %s rgs %v\n", sel, rgs)
if len(rgs) == 0 {
if neg {
s := sre.Range{sel.P0, sel.P1}
sels = append(sels, []sre.Range{s})
}
break
}
if neg {
s := sre.Range{sel.P0, rgs[0].P0}
sels = append(sels, []sre.Range{s})
} else {
sels = append(sels, rgs)
}
sel.P0 = rgs[0].P1
if rgs[0].P0 == rgs[0].P1 {
sel.P0++
}
}
return sels, nil
}
func (s eSel) matchBck(re []rune) []sre.Range {
prg, err := sre.Compile(re, sre.Bck)
if err != nil {
panic(err)
}
rg := prg.Exec(s.F, s.P0, s.F.Len())
if len(rg) == 0 && s.P0 == 0 {
rg = prg.Exec(s.F, s.F.Len(), s.F.Len())
}
return rg
}
func (s eSel) matchFwd(re []rune) []sre.Range {
prg, err := sre.Compile(re, sre.Fwd)
if err != nil {
panic(err)
}
rg := prg.Exec(s.F, s.P1, s.F.Len())
if len(rg) == 0 && s.P1 >= s.F.Len() {
rg = prg.Exec(s.F, s.P0, s.F.Len())
}
return rg
}
func cmdgv(s *Sam, c *Cmd) {
re, err := sre.Compile(c.Rexp, sre.Fwd)
if err != nil {
panic(fmt.Sprintf("g: regexp: %s", err))
}
rg := re.Exec(c.dot.F, c.dot.P0, c.dot.P1)
if (len(rg) == 0 && c.Ch == 'v') || (len(rg) > 0 && c.Ch == 'g') {
for _, child := range c.Child {
child.dot = c.dot
child.dot.setFileSel()
s.runCmd(child)
}
}
}
func (s *Sam) matchFile(re []rune) *file {
prg, err := sre.Compile(re, sre.Fwd)
if err != nil {
panic(fmt.Sprintf("match file regexp: %s", err))
}
for _, f := range s.f {
nm := f.MenuLine()
if rg := prg.ExecStr(nm, 0, len(nm)); len(rg) > 0 {
return f
}
}
panic("no file matches")
return nil
}
func cmdXY(s *Sam, c *Cmd) {
if s.inXY {
panic("can't next X or Y commands")
}
s.inXY = true
defer func() { s.inXY = false }()
var re *sre.ReProg
var err error
if c.Rexp != nil {
if re, err = sre.Compile(c.Rexp, sre.Fwd); err != nil {
panic(fmt.Sprintf("%c: regexp: %s", c.Ch, err))
}
} else if c.Ch == 'Y' {
panic("Y: no regexp given")
}
nf := make([]*file, len(s.f))
copy(nf, s.f)
for _, f := range nf {
matches := true
if re != nil {
nm := f.MenuLine() + "\n"
rg := re.ExecStr(nm, 0, len(nm))
matches = len(rg) > 0
}
if (c.Ch == 'X' && !matches) || (c.Ch == 'Y' && matches) {
continue
}
c.dot = f.Sel()
for _, child := range c.Child {
child.dot = c.dot
if err := s.runCmd(child); err != nil {
s.Out <- fmt.Sprintf("%s\n", err)
}
}
}
}