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// License: GPLv3 Copyright: 2022, Kovid Goyal, <kovid at kovidgoyal.net>
package cli
import (
"fmt"
"github.com/kovidgoyal/kitty/tools/cli/markup"
"github.com/kovidgoyal/kitty/tools/tty"
"github.com/kovidgoyal/kitty/tools/utils"
"github.com/kovidgoyal/kitty/tools/utils/style"
"github.com/kovidgoyal/kitty/tools/wcswidth"
"strings"
)
var _ = fmt.Print
func zsh_completion_script(commands []string) (string, error) {
return `#compdef kitty
_kitty() {
(( ${+commands[kitten]} )) || builtin return
builtin local src cmd=${(F)words:0:$CURRENT}
# Send all words up to the word the cursor is currently on.
src=$(builtin command kitten __complete__ zsh "_matcher=$_matcher" <<<$cmd) || builtin return
builtin eval "$src"
}
if (( $+functions[compdef] )); then
compdef _kitty kitty
compdef _kitty clone-in-kitty
compdef _kitty kitten
fi
`, nil
}
func shell_input_parser(data []byte, shell_state map[string]string) ([][]string, error) {
raw := string(data)
new_word := strings.HasSuffix(raw, "\n\n")
raw = strings.TrimRight(raw, "\n \t")
scanner := utils.NewLineScanner(raw)
words := make([]string, 0, 32)
for scanner.Scan() {
words = append(words, scanner.Text())
}
if new_word {
words = append(words, "")
}
return [][]string{words}, nil
}
var debugprintln = tty.DebugPrintln
var _ = debugprintln
func zsh_input_parser(data []byte, shell_state map[string]string) ([][]string, error) {
matcher := shell_state["_matcher"]
q := ""
if matcher != "" {
q = strings.Split(strings.ToLower(matcher), ":")[0][:1]
}
if q != "" && strings.Contains("lrbe", q) {
// this is zsh anchor based matching
// https://zsh.sourceforge.io/Doc/Release/Completion-Widgets.html#Completion-Matching-Control
// can be specified with matcher-list and some systems do it by default,
// for example, Debian, which adds the following to zshrc
// zstyle ':completion:*' matcher-list '' 'm:{a-z}={A-Z}' 'm:{a-zA-Z}={A-Za-z}' 'r:|[._-]=* r:|=* l:|=*'
// For some reason that I dont have the
// time/interest to figure out, returning completion candidates for
// these matcher types break completion, so just abort in this case.
return nil, fmt.Errorf("ZSH anchor based matching active, cannot complete")
}
return shell_input_parser(data, shell_state)
}
func (self *Match) FormatForCompletionList(max_word_len int, f *markup.Context, screen_width int) string {
word := self.Word
desc := self.Description
if desc == "" {
return word
}
word_len := wcswidth.Stringwidth(word)
line, _, _ := strings.Cut(strings.TrimSpace(desc), "\n")
desc = f.Prettify(line)
multiline := false
max_desc_len := screen_width - max_word_len - 3
if word_len > max_word_len {
multiline = true
} else {
word += strings.Repeat(" ", max_word_len-word_len)
}
if wcswidth.Stringwidth(desc) > max_desc_len {
desc = style.WrapTextAsLines(desc, max_desc_len-2, style.WrapOptions{})[0] + "…"
}
if multiline {
return word + "\n" + strings.Repeat(" ", max_word_len+2) + desc
}
return word + " " + desc
}
func serialize(completions *Completions, f *markup.Context, screen_width int) ([]byte, error) {
output := strings.Builder{}
if completions.Delegate.NumToRemove > 0 {
for i := 0; i < completions.Delegate.NumToRemove; i++ {
fmt.Fprintln(&output, "shift words")
fmt.Fprintln(&output, "(( CURRENT-- ))")
}
service := utils.QuoteStringForSH(completions.Delegate.Command)
fmt.Fprintln(&output, "words[1]="+service)
fmt.Fprintln(&output, "_normal -p", service)
} else {
for _, mg := range completions.Groups {
cmd := strings.Builder{}
escape_ourselves := mg.IsFiles // zsh quoting quotes a leading ~/ in filenames which is wrong
cmd.WriteString("compadd -U ")
if escape_ourselves {
cmd.WriteString("-Q ")
}
cmd.WriteString("-J ")
cmd.WriteString(utils.QuoteStringForSH(mg.Title))
cmd.WriteString(" -X ")
cmd.WriteString(utils.QuoteStringForSH("%B" + mg.Title + "%b"))
if mg.NoTrailingSpace {
cmd.WriteString(" -S ''")
}
if mg.IsFiles {
cmd.WriteString(" -f")
}
lcp := mg.remove_common_prefix()
if lcp != "" {
cmd.WriteString(" -p ")
cmd.WriteString(utils.QuoteStringForSH(lcp))
}
if mg.has_descriptions() {
fmt.Fprintln(&output, "compdescriptions=(")
limit := mg.max_visual_word_length(16)
for _, m := range mg.Matches {
fmt.Fprintln(&output, utils.QuoteStringForSH(wcswidth.StripEscapeCodes(m.FormatForCompletionList(limit, f, screen_width))))
}
fmt.Fprintln(&output, ")")
cmd.WriteString(" -l -d compdescriptions")
}
cmd.WriteString(" --")
for _, m := range mg.Matches {
cmd.WriteString(" ")
w := m.Word
if escape_ourselves {
w = utils.EscapeSHMetaCharacters(m.Word)
}
cmd.WriteString(utils.QuoteStringForSH(w))
}
fmt.Fprintln(&output, cmd.String(), ";")
}
}
// debugf("%#v", output.String())
return []byte(output.String()), nil
}
func zsh_output_serializer(completions []*Completions, shell_state map[string]string) ([]byte, error) {
var f *markup.Context
screen_width := 80
ctty, err := tty.OpenControllingTerm()
if err == nil {
sz, err := ctty.GetSize()
ctty.Close()
if err == nil {
screen_width = int(sz.Col)
}
}
f = markup.New(false) // ZSH freaks out if there are escape codes in the description strings
return serialize(completions[0], f, screen_width)
}
func init() {
completion_scripts["zsh"] = zsh_completion_script
input_parsers["zsh"] = zsh_input_parser
output_serializers["zsh"] = zsh_output_serializer
}
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