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Diffstat (limited to 'cli')
-rw-r--r--cli/cmd/compile.go71
-rw-r--r--cli/cmd/lex.go66
2 files changed, 99 insertions, 38 deletions
diff --git a/cli/cmd/compile.go b/cli/cmd/compile.go
index 6ad64b6..f2d56fa 100644
--- a/cli/cmd/compile.go
+++ b/cli/cmd/compile.go
@@ -3,7 +3,6 @@ package cmd
import (
"encoding/json"
"fmt"
- "io"
"io/ioutil"
"os"
"time"
@@ -13,6 +12,12 @@ import (
"github.com/spf13/cobra"
)
+var compileFlags = struct {
+ debug *bool
+ lexSpec *string
+ output *string
+}{}
+
func init() {
cmd := &cobra.Command{
Use: "compile",
@@ -21,41 +26,47 @@ func init() {
Example: ` cat lexspec.json | maleeni compile > clexspec.json`,
RunE: runCompile,
}
+ compileFlags.debug = cmd.Flags().BoolP("debug", "d", false, "enable logging")
+ compileFlags.lexSpec = cmd.Flags().StringP("lex-spec", "l", "", "lexical specification file path (default: stdin)")
+ compileFlags.output = cmd.Flags().StringP("output", "o", "", "output file path (default: stdout)")
rootCmd.AddCommand(cmd)
}
func runCompile(cmd *cobra.Command, args []string) (retErr error) {
- lspec, err := readLexSpec()
+ lspec, err := readLexSpec(*compileFlags.lexSpec)
if err != nil {
return fmt.Errorf("Cannot read a lexical specification: %w", err)
}
- var w io.Writer
- {
+
+ var opts []compiler.CompilerOption
+ if *compileFlags.debug {
fileName := "maleeni-compile.log"
f, err := os.OpenFile(fileName, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
if err != nil {
return fmt.Errorf("Cannot open the log file %s: %w", fileName, err)
}
defer f.Close()
- w = f
- }
- fmt.Fprintf(w, `maleeni compile starts.
+ fmt.Fprintf(f, `maleeni compile starts.
Date time: %v
---
`, time.Now().Format(time.RFC3339))
- defer func() {
- fmt.Fprintf(w, "---\n")
- if retErr != nil {
- fmt.Fprintf(w, "maleeni compile failed: %v\n", retErr)
- } else {
- fmt.Fprintf(w, "maleeni compile succeeded.\n")
- }
- }()
- clspec, err := compiler.Compile(lspec, compiler.EnableLogging(w))
+ defer func() {
+ fmt.Fprintf(f, "---\n")
+ if retErr != nil {
+ fmt.Fprintf(f, "maleeni compile failed: %v\n", retErr)
+ } else {
+ fmt.Fprintf(f, "maleeni compile succeeded.\n")
+ }
+ }()
+
+ opts = append(opts, compiler.EnableLogging(f))
+ }
+
+ clspec, err := compiler.Compile(lspec, opts...)
if err != nil {
return err
}
- err = writeCompiledLexSpec(clspec)
+ err = writeCompiledLexSpec(clspec, *compileFlags.output)
if err != nil {
return fmt.Errorf("Cannot write a compiled lexical specification: %w", err)
}
@@ -63,8 +74,17 @@ Date time: %v
return nil
}
-func readLexSpec() (*spec.LexSpec, error) {
- data, err := ioutil.ReadAll(os.Stdin)
+func readLexSpec(path string) (*spec.LexSpec, error) {
+ r := os.Stdin
+ if path != "" {
+ f, err := os.Open(path)
+ if err != nil {
+ return nil, fmt.Errorf("Cannot open the lexical specification file %s: %w", path, err)
+ }
+ defer f.Close()
+ r = f
+ }
+ data, err := ioutil.ReadAll(r)
if err != nil {
return nil, err
}
@@ -76,11 +96,20 @@ func readLexSpec() (*spec.LexSpec, error) {
return lspec, nil
}
-func writeCompiledLexSpec(clspec *spec.CompiledLexSpec) error {
+func writeCompiledLexSpec(clspec *spec.CompiledLexSpec, path string) error {
out, err := json.Marshal(clspec)
if err != nil {
return err
}
- fmt.Fprintf(os.Stdout, "%v\n", string(out))
+ w := os.Stdout
+ if path != "" {
+ f, err := os.OpenFile(path, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
+ if err != nil {
+ return fmt.Errorf("Cannot open the output file %s: %w", path, err)
+ }
+ defer f.Close()
+ w = f
+ }
+ fmt.Fprintf(w, "%v\n", string(out))
return nil
}
diff --git a/cli/cmd/lex.go b/cli/cmd/lex.go
index 2c0be27..f47f503 100644
--- a/cli/cmd/lex.go
+++ b/cli/cmd/lex.go
@@ -3,7 +3,6 @@ package cmd
import (
"encoding/json"
"fmt"
- "io"
"io/ioutil"
"os"
"time"
@@ -13,6 +12,12 @@ import (
"github.com/spf13/cobra"
)
+var lexFlags = struct {
+ debug *bool
+ source *string
+ output *string
+}{}
+
func init() {
cmd := &cobra.Command{
Use: "lex clexspec",
@@ -23,6 +28,9 @@ As use ` + "`maleeni compile`" + `, you can generate the specification.`,
Args: cobra.ExactArgs(1),
RunE: runLex,
}
+ lexFlags.debug = cmd.Flags().BoolP("debug", "d", false, "enable logging")
+ lexFlags.source = cmd.Flags().StringP("source", "s", "", "source file path (default: stdin)")
+ lexFlags.output = cmd.Flags().StringP("output", "o", "", "output file path (default: stdout)")
rootCmd.AddCommand(cmd)
}
@@ -31,31 +39,55 @@ func runLex(cmd *cobra.Command, args []string) (retErr error) {
if err != nil {
return fmt.Errorf("Cannot read a compiled lexical specification: %w", err)
}
- var w io.Writer
- {
+
+ var opts []driver.LexerOption
+ if *lexFlags.debug {
fileName := "maleeni-lex.log"
f, err := os.OpenFile(fileName, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
if err != nil {
return fmt.Errorf("Cannot open the log file %s: %w", fileName, err)
}
defer f.Close()
- w = f
- }
- fmt.Fprintf(w, `maleeni lex starts.
+ fmt.Fprintf(f, `maleeni lex starts.
Date time: %v
---
`, time.Now().Format(time.RFC3339))
- defer func() {
- fmt.Fprintf(w, "---\n")
- if retErr != nil {
- fmt.Fprintf(w, "maleeni lex failed: %v\n", retErr)
- } else {
- fmt.Fprintf(w, "maleeni lex succeeded.\n")
+ defer func() {
+ fmt.Fprintf(f, "---\n")
+ if retErr != nil {
+ fmt.Fprintf(f, "maleeni lex failed: %v\n", retErr)
+ } else {
+ fmt.Fprintf(f, "maleeni lex succeeded.\n")
+ }
+ }()
+
+ opts = append(opts, driver.EnableLogging(f))
+ }
+
+ var lex *driver.Lexer
+ {
+ src := os.Stdin
+ if *lexFlags.source != "" {
+ f, err := os.Open(*lexFlags.source)
+ if err != nil {
+ return fmt.Errorf("Cannot open the source file %s: %w", *lexFlags.source, err)
+ }
+ defer f.Close()
+ src = f
}
- }()
- lex, err := driver.NewLexer(clspec, os.Stdin, driver.EnableLogging(w))
- if err != nil {
- return err
+ lex, err = driver.NewLexer(clspec, src, opts...)
+ if err != nil {
+ return err
+ }
+ }
+ w := os.Stdout
+ if *lexFlags.output != "" {
+ f, err := os.OpenFile(*lexFlags.output, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
+ if err != nil {
+ return fmt.Errorf("Cannot open the output file %s: %w", *lexFlags.output, err)
+ }
+ defer f.Close()
+ w = f
}
for {
tok, err := lex.Next()
@@ -66,7 +98,7 @@ Date time: %v
if err != nil {
return fmt.Errorf("failed to marshal a token; token: %v, error: %v\n", tok, err)
}
- fmt.Fprintf(os.Stdout, "%v\n", string(data))
+ fmt.Fprintf(w, "%v\n", string(data))
if tok.EOF {
break
}
generated by cgit v1.2.3 (git 2.49.0) at 2025-07-13 14:12:58 +0000