zhouzhihong
879a86b6b7
1. 增加utf8文本的行数和列数计算字段 Co-authored-by: zhouzhihong <zhouzhihong@ijunhai.com> Reviewed-on: https://gitea.xintech.co/zhouzhihong/lexmachine/pulls/1
68 lines
1.1 KiB
Go
68 lines
1.1 KiB
Go
package main
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import (
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"fmt"
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"io"
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"io/ioutil"
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"log"
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"os"
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"gitea.xintech.co/zhouzhihong/lexmachine"
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"github.com/timtadh/getopt"
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)
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func main() {
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short := "h"
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long := []string{
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"help",
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}
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_, optargs, err := getopt.GetOpt(os.Args[1:], short, long)
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if err != nil {
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log.Print(err)
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log.Println("try --help")
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os.Exit(1)
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}
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for _, oa := range optargs {
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switch oa.Opt() {
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case "-h", "--help":
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fmt.Println("parse a sensors.conf")
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os.Exit(0)
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}
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}
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lexer := newLexer()
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stmts, err := parse(lexer, os.Stdin)
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if err != nil {
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fmt.Fprintln(os.Stderr, err)
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os.Exit(1)
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}
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for _, stmt := range stmts {
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fmt.Println(stmt)
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}
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}
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func parse(lexer *lexmachine.Lexer, fin io.Reader) (stmts []*Node, err error) {
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defer func() {
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if e := recover(); e != nil {
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switch e.(type) {
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case error:
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err = e.(error)
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stmts = nil
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default:
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panic(e)
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}
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}
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}()
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text, err := ioutil.ReadAll(fin)
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if err != nil {
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return nil, err
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}
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scanner, err := newGoLex(lexer, text)
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if err != nil {
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return nil, err
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}
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yyParse(scanner)
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return scanner.stmts, nil
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}
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