libbb/trim.c

[souf]

I tried to rewrite libbb/trim.c by adding new functions, a similar
functions are dispersed in busybox:
coreutils/cal.c
miscutils/crond.c
procps/sysctl.c
shell/lash.c
shell/ash.c
applets/applets.c

trim.c =========================================================
#include "libbb.h"

char *bb_strtrim(char *s, int c)
{
        char *t = NULL;

        if (!s) return NULL;

        if (c)
                t = strchr(s, c);
        else
                t = s;

        t = skip_whitespace(t);

        memmove(s, t, strlen(t));
        memset(s+strlen(t), 0, strlen(s)-strlen(t));

        return s;
}

char *bb_strrtrim(char *s, int c)
{
        char *t = NULL;

        if (!s) return NULL;

        if (c)
                t = strrchr(s, c);
        else
                t = s + strlen(s);

        while (t-- > s) {
                if (!isspace(*t)) {
                        t[1] = '\0';
                        break;
                }
        }

        return s;
}

char *bb_strtrim_index(char *s, unsigned int i)
{
        if (!s || i > strlen(s)) {
                return (s = NULL);
        }

        return bb_strtrim(s, s[i]);
}

char *bb_strrtrim_index(char *s, unsigned int i)
{
        if (!s || i > strlen(s)) {
                return (s = NULL);
        }

        return bb_strrtrim(s, s[i]);
}

char *bb_trimmed_slice(char *s, int l, int t)
{
        bb_strtrim(s, l);
        bb_strrtrim(s, t);

        return s;
}

char *trim(char *s)
{
        return bb_trimmed_slice(s, 0, 0);
}

I do not know if it is interesting or not ?

Malek (Souf).


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