Referencia del Archivo src/posprinter/lpr/common_source/vis.c

#include <sys/types.h>
#include <limits.h>
#include <ctype.h>
#include <string.h>
#include <vis.h>

'defines'
#define	isoctal(c)   (((u_char)(c)) >= '0' && ((u_char)(c)) <= '7')
#define	isvisible(c)
Funciones
char *	vis (char *dst, int c, int flag, int nextc)
int	strvis (char *dst, const char *src, int flag)
int	strnvis (char *dst, const char *src, size_t siz, int flag)
int	strvisx (char *dst, const char *src, size_t len, int flag)

---

Documentación de los 'defines'

#define isoctal

(

c

)

(((u_char)(c)) >= '0' && ((u_char)(c)) <= '7')

#define isvisible

(

c

)

Valor:

(((u_int)(c) <= UCHAR_MAX && isascii((u_char)(c)) &&            \
        (((c) != '*' && (c) != '?' && (c) != '[' && (c) != '#') ||      \
                (flag & VIS_GLOB) == 0) && isgraph((u_char)(c))) ||     \
        ((flag & VIS_SP) == 0 && (c) == ' ') ||                         \
        ((flag & VIS_TAB) == 0 && (c) == '\t') ||                       \
        ((flag & VIS_NL) == 0 && (c) == '\n') ||                        \
        ((flag & VIS_SAFE) && ((c) == '\b' ||                           \
                (c) == '\007' || (c) == '\r' ||                         \
                isgraph((u_char)(c)))))

---

Documentación de las funciones

int strnvis	(	char *	dst,
		const char *	src,
		size_t	siz,
		int	flag
	)

int strvis	(	char *	dst,
		const char *	src,
		int	flag
	)

int strvisx	(	char *	dst,
		const char *	src,
		size_t	len,
		int	flag
	)

char* vis	(	char *	dst,
		int	c,
		int	flag,
		int	nextc
	)