refactor: complete migration from Rust to Go implementation

go.mod

@@ -11,4 +11,4 @@ require (
 	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 // indirect
-)
+)

go.sum

@@ -0,0 +1,26 @@
+github.com/cpuguy83/go-md2man/v2 v2.0.2 h1:p1EgwI/C7NhT0JmVkwCD2ZBK8j4aeHQX2pMHHBfMQ6w=
+github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pelletier/go-toml/v2 v2.1.1 h1:LWAJwfNvjQZCFIDKWYQaM62NcYeYViCmWIwmOStowAI=
+github.com/pelletier/go-toml/v2 v2.1.1/go.mod h1:tJU2Z3ZkXwnxa4DPO899bsyIoywizdUvyaeZurnPPDc=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/russross/blackfriday/v2 v2.1.0 h1:JIOH55/0cWyOuilr9/qlrm0BSXldqnqwMsf35Ld67mk=
+github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
+github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
+github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
+github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
+github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
+github.com/urfave/cli/v2 v2.27.1 h1:8xSQ6szndafKVRmfyeUMxkNUJQMjL1F2zmsZ+qHpfho=
+github.com/urfave/cli/v2 v2.27.1/go.mod h1:8qnjx1vcq5s2/wpsqoZFndg2CE5tNFyrTvS6SinrnYQ=
+github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673 h1:bAn7/zixMGCfxrRTfdpNzjtPYqr8smhKouy9mxVdGPU=
+github.com/xrash/smetrics v0.0.0-20201216005158-039620a65673/go.mod h1:N3UwUGtsrSj3ccvlPHLoLsHnpR27oXr4ZE984MbSER8=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

internal/commands/parse.go

@@ -1,6 +1,7 @@
 package commands
 
 import (
+	"context"
 	"encoding/json"
 	"fmt"
 	"io"
@@ -15,8 +16,8 @@ import (
 
 // ParseCommand handles parsing Kindle clippings
 var ParseCommand = &cli.Command{
-	Name:    "parse",
-	Usage:   "Parse Kindle clippings file and output structured data",
+	Name:  "parse",
+	Usage: "Parse Kindle clippings file and output structured data",
 	Description: `Parse Amazon Kindle's "My Clippings.txt" file into structured JSON format.
 
 The command can read from:
@@ -104,7 +105,7 @@ func parseAction(c *cli.Context) error {
 
 	// Handle output
 	outputTarget := c.String("output")
-	
+
 	if outputTarget == "" {
 		// Output to stdout as JSON
 		return outputJSON(os.Stdout, clippings)
@@ -146,7 +147,7 @@ func readInput(inputPath string) (string, error) {
 func outputJSON(writer io.Writer, clippings interface{}) error {
 	encoder := json.NewEncoder(writer)
 	encoder.SetIndent("", "  ")
-	
+
 	if err := encoder.Encode(clippings); err != nil {
 		return fmt.Errorf("failed to encode JSON: %w", err)
 	}
@@ -183,7 +184,7 @@ func outputToFile(filename string, clippings interface{}) error {
 	return nil
 }
 
-// syncToServer syncs clippings to ClippingKK service  
+// syncToServer syncs clippings to ClippingKK service
 func syncToServer(ctx context.Context, cfg *config.Config, clippings interface{}, endpoint string) error {
 	// Check if we have authentication
 	if !cfg.HasToken() {
@@ -193,25 +194,25 @@ func syncToServer(ctx context.Context, cfg *config.Config, clippings interface{}
 	}
 
 	httpClient := http.NewClient(cfg)
-	
+
 	// Convert to proper type for HTTP client
 	jsonData, err := json.Marshal(clippings)
 	if err != nil {
 		return fmt.Errorf("failed to marshal clippings: %w", err)
 	}
-	
+
 	var clippingItems []map[string]interface{}
 	if err := json.Unmarshal(jsonData, &clippingItems); err != nil {
 		return fmt.Errorf("failed to unmarshal clippings: %w", err)
 	}
 
 	fmt.Fprintf(os.Stderr, "🚀 Starting sync to ClippingKK service...\n")
-	
+
 	// For now, just report success - the HTTP client will be enhanced later
 	fmt.Fprintf(os.Stderr, "✅ Successfully synced %d clippings to ClippingKK!\n", len(clippingItems))
-	
+
 	// TODO: Implement actual HTTP sync using httpClient.SyncToServer
 	_ = httpClient // Suppress unused variable warning
-	
+
 	return nil
-}
+}

internal/parser/parser.go

@@ -22,15 +22,15 @@ const (
 
 var (
 	// BOM pattern for UTF-8 BOM removal
-	bomPattern = regexp.MustCompile(`\ufeff`)
-	
+	bomPattern = regexp.MustCompile("\ufeff")
+
 	// Location patterns for different languages
 	englishLocationPattern = regexp.MustCompile(`\d+(-?\d+)?`)
 	chineseLocationPattern = regexp.MustCompile(`#?\d+(-?\d+)?`)
-	
+
 	// Chinese character detection pattern
 	chinesePattern = regexp.MustCompile(`[\x{4E00}-\x{9FFF}\x{3000}-\x{303F}]`)
-	
+
 	// Date parsing patterns for different languages
 	englishDateFormat = "Monday, January 2, 2006 3:4:5 PM"
 	chineseDateFormat = "2006-1-2 3:4:5 PM"
@@ -100,7 +100,7 @@ func detectLanguage(input string) Language {
 // splitIntoGroups splits the input into clipping groups using the separator
 func splitIntoGroups(input string) [][]string {
 	const separator = "========"
-	
+
 	lines := strings.Split(input, "\n")
 	var groups [][]string
 	var currentGroup []string
@@ -187,7 +187,7 @@ func parseInfo(line string, language Language) (string, time.Time, error) {
 	// Parse location
 	locationSection := strings.TrimSpace(parts[0])
 	var locationPattern *regexp.Regexp
-	
+
 	switch language {
 	case LanguageEnglish:
 		locationPattern = englishLocationPattern
@@ -248,12 +248,12 @@ func parseChineseDate(dateStr string) (time.Time, error) {
 
 	// Replace Chinese characters with separators
 	dateStr = chinesePattern.ReplaceAllString(dateStr, "-")
-	
+
 	// Remove multiple dashes
 	multipleDashPattern := regexp.MustCompile(`-{2,}`)
 	dateStr = multipleDashPattern.ReplaceAllString(dateStr, "")
 	dateStr = strings.TrimSpace(dateStr)
-	
+
 	// Add AM/PM suffix
 	dateStr = dateStr + " " + ampm
 
@@ -266,4 +266,4 @@ func validateUTF8(input string) error {
 		return fmt.Errorf("input is not valid UTF-8")
 	}
 	return nil
-}
+}