func complFormHeadInner(head string, ed *Editor) ([]*candidate, error) {
if util.DontSearch(head) {
return complFilenameInner(head, true)
}
var commands []string
got := func(s string) {
if strings.HasPrefix(s, head) {
commands = append(commands, s)
}
}
for special := range isBuiltinSpecial {
got(special)
}
splice, ns, _ := eval.ParseVariable(head)
iterateVariables(ed.evaler, ns, func(varname string) {
if strings.HasPrefix(varname, eval.FnPrefix) {
got(eval.MakeVariableName(splice, ns, varname[len(eval.FnPrefix):]))
}
})
for command := range ed.isExternal {
got(command)
}
sort.Strings(commands)
cands := []*candidate{}
for _, cmd := range commands {
cands = append(cands, &candidate{text: cmd})
}
return cands, nil
}
func complVariable(n parse.Node, ed *Editor) (int, int, []*candidate) {
begin, end := n.Begin(), n.End()
primary, ok := n.(*parse.Primary)
if !ok || primary.Type != parse.Variable {
return -1, -1, nil
}
splice, ns, head := eval.ParseVariable(primary.Value)
// Collect matching variables.
var varnames []string
iterateVariables(ed.evaler, ns, func(varname string) {
if strings.HasPrefix(varname, head) {
varnames = append(varnames, varname)
}
})
sort.Strings(varnames)
cands := make([]*candidate, len(varnames))
// Build candidates.
for i, varname := range varnames {
cands[i] = &candidate{text: "$" + eval.MakeVariableName(splice, ns, varname)}
}
return begin, end, cands
}
func goodFormHead(head string, ed *Editor) bool {
if isBuiltinSpecial[head] {
return true
} else if util.DontSearch(head) {
// XXX don't stat twice
return util.IsExecutable(head) || isDir(head)
} else {
explode, ns, name := eval.ParseVariable(head)
if !explode {
switch ns {
case "":
if eval.Builtin()[eval.FnPrefix+name] != nil || ed.evaler.Global[eval.FnPrefix+name] != nil {
return true
}
case "e":
if ed.isExternal[name] {
return true
}
default:
if ed.evaler.Modules[ns] != nil && ed.evaler.Modules[ns][eval.FnPrefix+name] != nil {
return true
}
}
}
return ed.isExternal[head]
}
}
func goodFormHead(head string, ed *Editor) bool {
if isBuiltinSpecial[head] {
return true
} else if util.DontSearch(head) {
// XXX don't stat twice
return util.IsExecutable(head) || isDir(head)
} else {
_, ns, head := eval.ParseVariable(head)
if ns == "" {
return ed.isExternal[head] ||
eval.Builtin()[eval.FnPrefix+head] != nil ||
ed.evaler.Global[eval.FnPrefix+head] != nil
} else {
return ed.evaler.Modules[ns] != nil &&
ed.evaler.Modules[ns][eval.FnPrefix+head] != nil
}
}
}
func complFormHeadInner(head string, ed *Editor) ([]*candidate, error) {
if util.DontSearch(head) {
return complFilenameInner(head, true)
}
var commands []string
got := func(s string) {
if strings.HasPrefix(s, head) {
commands = append(commands, s)
}
}
for special := range isBuiltinSpecial {
got(special)
}
explode, ns, _ := eval.ParseVariable(head)
if !explode {
iterateVariables(ed.evaler, ns, func(varname string) {
if strings.HasPrefix(varname, eval.FnPrefix) {
got(eval.MakeVariableName(false, ns, varname[len(eval.FnPrefix):]))
} else {
got(eval.MakeVariableName(false, ns, varname) + "=")
}
})
}
for command := range ed.isExternal {
got(command)
if strings.HasPrefix(head, "e:") {
got("e:" + command)
}
}
// TODO Support non-module namespaces.
for ns := range ed.evaler.Modules {
if head != ns+":" {
got(ns + ":")
}
}
sort.Strings(commands)
cands := []*candidate{}
for _, cmd := range commands {
cands = append(cands, &candidate{text: cmd})
}
return cands, nil
}