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Print matched content in color

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This commit is contained in:
Aadhavan Srinivasan
2024-10-22 21:02:09 -04:00
parent bc11777ad5
commit cc0098b558
3 changed files with 34 additions and 7 deletions
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9
go.mod
View File

@@ -1,3 +1,10 @@
module re module re
go 1.23.1 go 1.23.1
require (
github.com/fatih/color v1.18.0 // indirect
github.com/mattn/go-colorable v0.1.13 // indirect
github.com/mattn/go-isatty v0.0.20 // indirect
golang.org/x/sys v0.25.0 // indirect
)

11
go.sum Normal file
View File

@@ -0,0 +1,11 @@
github.com/fatih/color v1.18.0 h1:S8gINlzdQ840/4pfAwic/ZE0djQEH3wM94VfqLTZcOM=
github.com/fatih/color v1.18.0/go.mod h1:4FelSpRwEGDpQ12mAdzqdOukCy4u8WUtOY6lkT/6HfU=
github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.25.0 h1:r+8e+loiHxRqhXVl6ML1nO3l1+oFoWbnlu2Ehimmi34=
golang.org/x/sys v0.25.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=

21
main.go
View File

@@ -4,6 +4,8 @@ import (
"fmt" "fmt"
"os" "os"
"slices" "slices"
"github.com/fatih/color"
) )
const CONCAT rune = '~' const CONCAT rune = '~'
@@ -44,7 +46,7 @@ func shuntingYard(re string) string {
} }
} }
fmt.Println(string(re_postfix)) // fmt.Println(string(re_postfix))
opStack := make([]rune, 0) // Operator stack opStack := make([]rune, 0) // Operator stack
outQueue := make([]rune, 0) // Output queue outQueue := make([]rune, 0) // Output queue
@@ -165,12 +167,19 @@ func main() {
var re string var re string
re = os.Args[1] re = os.Args[1]
re_postfix := shuntingYard(re) re_postfix := shuntingYard(re)
fmt.Println(re_postfix) // fmt.Println(re_postfix)
start := thompson(re_postfix) startState := thompson(re_postfix)
s, e, matched := match(start, os.Args[2]) start, end, matched := match(startState, os.Args[2])
if matched { if matched {
fmt.Printf("Matched from %d to %d\n", s, e) for i, c := range os.Args[2] {
if i >= start && i < end {
color.New(color.FgRed).Printf("%c", c)
} else {
fmt.Printf("%c", c)
}
}
fmt.Printf("\n")
} else { } else {
fmt.Printf("No match found.\n") fmt.Println(os.Args[2])
} }
} }