github.com/lmorg/murex@v0.0.0-20240217211045-e081c89cd4ef/builtins/optional/printf/printf.go (about)

     1  package printf
     2  
     3  import (
     4  	"fmt"
     5  
     6  	"github.com/lmorg/murex/lang"
     7  	"github.com/lmorg/murex/lang/types"
     8  )
     9  
    10  func init() {
    11  	lang.DefineFunction("printf", cmdPrintf, types.String)
    12  }
    13  
    14  func cmdPrintf(p *lang.Process) error {
    15  	str, err := p.Parameters.String(0)
    16  	if err != nil {
    17  		return err
    18  	}
    19  
    20  	s := fmt.Sprintf(str, convSlice(p.Parameters.StringArray()[1:])...)
    21  
    22  	_, err = p.Stdout.Write([]byte(s))
    23  	return err
    24  }
    25  
    26  func convSlice(s []string) []any {
    27  	r := make([]any, len(s))
    28  	for i := range s {
    29  		r[i] = s[i]
    30  	}
    31  	return r
    32  }