readline.h File Reference

Minmal readline. More...

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Functions
	FILE_LICENCE (GPL2_OR_LATER)
char *__malloc	readline (const char *prompt)
	Read line from console.

---

Detailed Description

Minmal readline.

Definition in file readline.h.

---

Function Documentation

FILE_LICENCE

(

GPL2_OR_LATER

)

char* __malloc readline

(

const char *

prompt

)

Read line from console.

Parameters:

prompt

Prompt string

Return values:

line

Line read from console (excluding terminating newline)

The returned line is allocated with malloc(); the caller must eventually call free() to release the storage.

Definition at line 86 of file readline.c.

References CR, CTRL_C, edit_string(), getkey(), LF, memset(), NULL, printf(), putchar(), READLINE_MAX, strdup(), and sync_console().

Referenced by shell().

                                       {
        char buf[READLINE_MAX];
        struct edit_string string;
        int key;
        char *line;

        if ( prompt )
                printf ( "%s", prompt );

        memset ( &string, 0, sizeof ( string ) );
        string.buf = buf;
        string.len = sizeof ( buf );
        buf[0] = '\0';

        while ( 1 ) {
                key = edit_string ( &string, getkey() );
                sync_console ( &string );
                switch ( key ) {
                case CR:
                case LF:
                        putchar ( '\n' );
                        line = strdup ( buf );
                        if ( ! line )
                                printf ( "Out of memory\n" );
                        return line;
                case CTRL_C:
                        putchar ( '\n' );
                        return NULL;
                default:
                        /* Do nothing */
                        break;
                }
        }
}