support autocomplete for sys topics

fzipp · Aug 4, 2023 · 283ed04 · 283ed04
1 parent ca65196
commit 283ed04
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Showing 2 changed files with 27 additions and 0 deletions.
diff --git a/complete.go b/complete.go
@@ -19,6 +19,7 @@ var (
 	specialHelp = regexp.MustCompile(`^\s*\)\s*help\s*$`)
 	specialGet  = regexp.MustCompile(`^\s*\)\s*get\s*["']$`)
 	specialSave = regexp.MustCompile(`^\s*\)\s*save\s*["']$`)
+	opSys       = regexp.MustCompile(`(|.*\s+)sys(|\s*["'])$`)
 )
 
 type defsProvider interface {
@@ -45,6 +46,14 @@ func makeCompleter(def defsProvider) liner.WordCompleter {
 		} else if specialGet.MatchString(beforeWord) || specialSave.MatchString(beforeWord) {
 			words = fileNames()
 			suffix = ""
+		} else if opSys.MatchString(beforeWord) {
+			last := beforeWord[len(beforeWord)-1]
+			if last == '"' || last == '\'' {
+				words = sysTopics
+			} else {
+				words = []string{"\""}
+			}
+			suffix = ""
 		} else {
 			ops, err := def.Ops()
 			if err == nil {

diff --git a/words.go b/words.go
@@ -101,3 +101,21 @@ var helpTopics = []string{
 	"types",
 	"unary",
 }
+
+var sysTopics = []string{
+	"help",
+	"base",
+	"cpu",
+	"date",
+	"format",
+	"ibase",
+	"maxbits",
+	"maxdigits",
+	"maxstack",
+	"now",
+	"obase",
+	"origin",
+	"prompt",
+	"sec",
+	"time",
+}