Added shell command completion support to define-command and prompt

This commit also introduces a regression in that I decided that the best way to
avoid overly long and confusing names was to rename the current shell-*
switches to script-*, and have the shell command completion be
shell-completion.

renamed script-{completion,candidates} to shell-script-*

Updated docs with new switch names

Added -shell-completion switch to x11-repl and kitty-repl

doc/pages/commands.asciidoc

@@ -291,6 +291,9 @@ New commands can be defined using the *define-command* command:
     try command completion on any parameter passed to this command
 
 *-shell-completion*:::
+    try shell command completion on any parameter passed to this command
+
+*-shell-script-completion*:::
     following string is a shell command which takes parameters as
     positional params and output one completion candidate per line.
     The provided shell command will run after each keypress
@@ -305,7 +308,7 @@ New commands can be defined using the *define-command* command:
         Position of the cursor inside the token being completed, in bytes
         from token start.
 
-*-shell-candidates*:::
+*-shell-script-candidates*:::
     following string is a shell command which takes parameters as
     positional params and output one completion candidate per line.
     The provided shell command will run once at the beginning of each

rc/base/ctags.kak

@@ -7,7 +7,7 @@ declare-option -docstring "list of paths to tag files to parse when looking up a
     str-list ctagsfiles 'tags'
 
 define-command -params ..1 \
-    -shell-candidates %{
+    -shell-script-candidates %{
         realpath() { ( path=$(readlink "$1"); cd "$(dirname "$1")"; printf "%s/%s\n" "$(pwd -P)" "$(basename "$1")" ) }
         eval "set -- $kak_opt_ctagsfiles"
         for candidate in "$@"; do

rc/core/doc.kak

@@ -131,7 +131,7 @@ define-command -params 1 -hidden doc-render %{
 }
 
 define-command -params 1..2 \
-    -shell-candidates %{
+    -shell-script-candidates %{
         if [ "$kak_token_to_complete" -eq 0 ]; then
             find "${kak_runtime}/doc/" -type f -name "*.asciidoc" | sed 's,.*/,,; s/\.[^/]*$//'
         elif [ "$kak_token_to_complete" -eq 1 ]; then

rc/core/kakrc.kak

@@ -20,10 +20,10 @@ add-highlighter shared/kakrc/shell1 region -recurse '\{' '(^|\h)\K%?%sh\{' '\}'
 add-highlighter shared/kakrc/shell2 region -recurse '\(' '(^|\h)\K%?%sh\(' '\)' ref sh
 add-highlighter shared/kakrc/shell3 region -recurse '\[' '(^|\h)\K%?%sh\[' '\]' ref sh
 add-highlighter shared/kakrc/shell4 region -recurse '<'  '(^|\h)\K%?%sh<'  '>'  ref sh
-add-highlighter shared/kakrc/shell5 region -recurse '\{' '(^|\h)\K-shell-(completion|candidates)\h+%\{' '\}' ref sh
+add-highlighter shared/kakrc/shell5 region -recurse '\{' '(^|\h)\K-script-(completion|candidates)\h+%\{' '\}' ref sh
-add-highlighter shared/kakrc/shell6 region -recurse '\(' '(^|\h)\K-shell-(completion|candidates)\h+%\(' '\)' ref sh
+add-highlighter shared/kakrc/shell6 region -recurse '\(' '(^|\h)\K-script-(completion|candidates)\h+%\(' '\)' ref sh
-add-highlighter shared/kakrc/shell7 region -recurse '\[' '(^|\h)\K-shell-(completion|candidates)\h+%\[' '\]' ref sh
+add-highlighter shared/kakrc/shell7 region -recurse '\[' '(^|\h)\K-script-(completion|candidates)\h+%\[' '\]' ref sh
-add-highlighter shared/kakrc/shell8 region -recurse '<'  '(^|\h)\K-shell-(completion|candidates)\h+%<'  '>'  ref sh
+add-highlighter shared/kakrc/shell8 region -recurse '<'  '(^|\h)\K-script-(completion|candidates)\h+%<'  '>'  ref sh
 
 evaluate-commands %sh{
     # Grammar

rc/core/man.kak

@@ -51,7 +51,7 @@ define-command -hidden -params 2..3 man-impl %{ evaluate-commands %sh{
 } }
 
 define-command -params ..1 \
-  -shell-candidates %{
+  -shell-script-candidates %{
       find /usr/share/man/ -name '*.[1-8]*' | sed 's,^.*/\(.*\)\.\([1-8][a-zA-Z]*\).*$,\1(\2),'
   } \
   -docstring %{man [<page>]: manpage viewer wrapper

rc/extra/git-tools.kak

@@ -27,7 +27,7 @@ define-command -params 1.. \
   -docstring %sh{printf 'git [<arguments>]: git wrapping helper
 All the optional arguments are forwarded to the git utility
 Available commands:\n  add\n  rm\n  blame\n  commit\n  checkout\n  diff\n  hide-blame\n  hide-diff\n  log\n  show\n  show-diff\n  status\n  update-diff'} \
-  -shell-candidates %{
+  -shell-script-candidates %{
     if [ $kak_token_to_complete -eq 0 ]; then
         printf "add\nrm\nblame\ncommit\ncheckout\ndiff\nhide-blame\nhide-diff\nlog\nshow\nshow-diff\nstatus\nupdate-diff\n"
     else

rc/extra/kitty.kak

@@ -43,9 +43,7 @@ If no client is passed then the current one is used} \
 define-command -docstring %{kitty-repl [<arguments>]: create a new window for repl interaction
 All optional parameters are forwarded to the new window} \
     -params .. \
-    -shell-candidates %{
+    -shell-completion \
-        find $(echo $PATH | tr ':' ' ') -mindepth 1 -maxdepth 1 -executable -printf "%f\n"
-    } \
     kitty-repl %{ evaluate-commands %sh{
         if [ $# -eq 0 ]; then cmd="${SHELL:-/bin/sh}"; else cmd="$*"; fi
         kitty @ new-window --no-response --window-type $kak_opt_kitty_window_type --title kak_repl_window $cmd < /dev/null > /dev/null 2>&1 &

rc/extra/x11-repl.kak

@@ -2,7 +2,7 @@
 define-command -docstring %{x11-repl [<arguments>]: create a new window for repl interaction
 All optional parameters are forwarded to the new window} \
     -params .. \
-    -command-completion \
+    -shell-completion \
     x11-repl %{ evaluate-commands %sh{
         if [ -z "${kak_opt_termcmd}" ]; then
            echo "echo -markup '{Error}termcmd option is not set'"

share/kak/kakrc

@@ -1,5 +1,5 @@
 def -params 1 -docstring "colorscheme <name>: enable named colorscheme" \
-    -shell-candidates %{
+    -shell-script-candidates %{
     find -L "${kak_runtime}/colors" "${kak_config}/colors" -type f -name '*\.kak' \
         | while read -r filename; do
             basename="${filename##*/}"

src/commands.cc

@@ -997,7 +997,7 @@ void define_command(const ParametersParser& parser, Context& context, const Shel
              return complete_buffer_name(context, flags, params[token_to_complete], pos_in_token);
         };
     }
-    else if (auto shell_cmd_opt = parser.get_switch("shell-completion"))
+    else if (auto shell_cmd_opt = parser.get_switch("shell-script-completion"))
     {
         String shell_cmd = shell_cmd_opt->str();
         completer = [=](const Context& context, CompletionFlags flags,
@@ -1022,7 +1022,7 @@ void define_command(const ParametersParser& parser, Context& context, const Shel
             return Completions{ 0_byte, pos_in_token, std::move(candidates) };
         };
     }
-    else if (auto shell_cmd_opt = parser.get_switch("shell-candidates"))
+    else if (auto shell_cmd_opt = parser.get_switch("shell-script-candidates"))
     {
         String shell_cmd = shell_cmd_opt->str();
         Vector<std::pair<String, UsedLetters>, MemoryDomain::Completion> candidates;
@@ -1082,6 +1082,15 @@ void define_command(const ParametersParser& parser, Context& context, const Shel
                 context, flags, params, token_to_complete, pos_in_token);
         };
     }
+    else if (parser.get_switch("shell-completion"))
+    {
+        completer = [](const Context& context, CompletionFlags flags,
+                       CommandParameters params,
+                       size_t token_to_complete, ByteCount pos_in_token)
+        {
+            return shell_complete(context, flags, params[token_to_complete], pos_in_token);
+        };
+    }
 
     auto docstring = trim_whitespaces(parser.get_switch("docstring").value_or(StringView{}));
 
@@ -1102,8 +1111,9 @@ const CommandDesc define_command_cmd = {
           { "client-completion",        { false, "complete parameters using client name completion" } },
           { "buffer-completion",        { false, "complete parameters using buffer name completion" } },
           { "command-completion",       { false, "complete parameters using kakoune command completion" } },
-          { "shell-completion",   { true,  "complete parameters using the given shell-script" } },
+          { "shell-completion",         { false, "complete parameters using shell command completion" } },
-          { "shell-candidates",   { true,  "get the parameter candidates using the given shell-script" } } },
+          { "shell-script-completion",  { true,  "complete parameters using the given shell-script" } },
+          { "shell-script-candidates",  { true,  "get the parameter candidates using the given shell-script" } } },
         ParameterDesc::Flags::None,
         2, 2
     },
@@ -1828,6 +1838,7 @@ const CommandDesc prompt_cmd = {
           { "client-completion", { false, "use client completion for prompt" } },
           { "buffer-completion", { false, "use buffer completion for prompt" } },
           { "command-completion", { false, "use command completion for prompt" } },
+          { "shell-completion", { false, "use shell command completion for prompt" } },
           { "on-change", { true, "command to execute whenever the prompt changes" } },
           { "on-abort", { true, "command to execute whenever the prompt is canceled" } } },
         ParameterDesc::Flags::None, 2, 2
@@ -1863,6 +1874,8 @@ const CommandDesc prompt_cmd = {
                 return CommandManager::instance().complete(
                     context, flags, prefix, cursor_pos);
             };
+        else if (parser.get_switch("shell-completion"))
+            completer = shell_complete;
 
         const auto flags = parser.get_switch("password") ?
             PromptFlags::Password : PromptFlags::None;

test/regression/0-nothing-selected-on-prompt-initial-shift-tab/rc

@@ -1 +1 @@
-def my-command -params 0..1 -shell-candidates %{ printf "aaa\nbbb\nccc" } %{ exec i %arg{1} <esc> }
+def my-command -params 0..1 -shell-script-candidates %{ printf "aaa\nbbb\nccc" } %{ exec i %arg{1} <esc> }