Improve inference precision of option

thombashi · thombashi · commit f23a1c006a4d · 2022-05-16T08:39:49.000+09:00
diff --git a/lib/arg_parser.go b/lib/arg_parser.go
@@ -3,11 +3,14 @@ package lib
 import (
 	"errors"
 	"os"
+	"regexp"
 	"strings"
 )
 
+var reOpt = regexp.MustCompile("^--[a-z][-a-z]*|^-[a-zA-Z]$")
+
 func canOpt(arg string) bool {
-	return strings.HasPrefix(arg, "-")
+	return reOpt.MatchString(arg)
 }
 
 // ParseArgs split arguments into options and file paths

Original file line number	Diff line number	Diff line change
`@@ -3,11 +3,14 @@ package lib`
`3`	`3`	`import (`
`4`	`4`	`"errors"`
`5`	`5`	`"os"`
	`6`	`+ "regexp"`
`6`	`7`	`"strings"`
`7`	`8`	`)`
`8`	`9`
	`10`	`+var reOpt = regexp.MustCompile("^--[a-z][-a-z]*\|^-[a-zA-Z]$")`
	`11`	`+`
`9`	`12`	`func canOpt(arg string) bool {`
`10`		`- return strings.HasPrefix(arg, "-")`
	`13`	`+ return reOpt.MatchString(arg)`
`11`	`14`	`}`
`12`	`15`
`13`	`16`	`// ParseArgs split arguments into options and file paths`