vis.c File Reference

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

Include dependency graph for vis.c:

Macros
#define	_DIAGASSERT(a)
#define	BELL   '\a'
#define	isoctal(c)   (((u_char)(c)) >= '0' && ((u_char)(c)) <= '7')
#define	iswhite(c)   (c == ' ' || c == '\t' || c == '\n')
#define	issafe(c)   (c == '\b' || c == BELL || c == '\r')
#define	xtoa(c)   "0123456789abcdef"[c]
#define	MAXEXTRAS   5
#define	MAKEEXTRALIST(flag, extra, orig)
#define	HVIS(dst, c, flag, nextc, extra)
#define	SVIS(dst, c, flag, nextc, extra)

Functions
char *	svis (char *dst, int c, int flag, int nextc, const char *extra)
int	strsvis (char *dst, const char *csrc, int flag, const char *extra)
int	strsvisx (char *dst, const char *csrc, size_t len, int flag, const char *extra)
char *	vis (char *dst, int c, int flag, int nextc)
int	strvis (char *dst, const char *src, int flag)
int	strvisx (char *dst, const char *src, size_t len, int flag)

Macro Definition Documentation

HVIS

#define HVIS	(		dst,
			c,
			flag,
			nextc,
			extra
	)

Value:

do                                                                            \
        if (!isascii(c) || !isalnum(c) || strchr("$-_.+!*'(),", c) != NULL) { \
                *dst++ = '%';                                                 \
                *dst++ = xtoa(((unsigned int)c >> 4) & 0xf);                  \
                *dst++ = xtoa((unsigned int)c & 0xf);                         \
        } else {                                                              \
                SVIS(dst, c, flag, nextc, extra);                             \
        }                                                                     \
while (/*CONSTCOND*/0)

MAKEEXTRALIST

#define MAKEEXTRALIST	(		flag,
			extra,
			orig
	)

Value:

do {                                                                          \
        const char *o = orig;                                                 \
        char *e;                                                              \
        while (*o++)                                                          \
                continue;                                                     \
        extra = malloc((size_t)((o - orig) + MAXEXTRAS));                     \
        if (!extra) break;                                                    \
        for (o = orig, e = extra; (*e++ = *o++) != '\0';)                     \
                continue;                                                     \
        e--;                                                                  \
        if (flag & VIS_SP) *e++ = ' ';                                        \
        if (flag & VIS_TAB) *e++ = '\t';                                      \
        if (flag & VIS_NL) *e++ = '\n';                                       \
        if ((flag & VIS_NOSLASH) == 0) *e++ = '\\';                           \
        *e = '\0';                                                            \
} while (/*CONSTCOND*/0)