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sh: Make argstr() return where it stopped and simplify expari() using this.

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This commit is contained in:
Jilles Tjoelker 2014-03-04 22:30:38 +00:00
parent 42b10a37c6
commit a2cba42fc2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=262755
1 changed files with 5 additions and 21 deletions
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26
bin/sh/expand.c
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@ -98,7 +98,7 @@ static struct ifsregion ifsfirst; /* first struct in list of ifs regions */
static struct ifsregion *ifslastp; /* last struct in list */
static struct arglist exparg; /* holds expanded arg list */
static void argstr(char *, int);
static char *argstr(char *, int);
static char *exptilde(char *, int);
static char *expari(char *);
static void expbackq(union node *, int, int);
@ -213,7 +213,7 @@ expandarg(union node *arg, struct arglist *arglist, int flag)
* characters to allow for further processing.
* If EXP_FULL is set, also preserve CTLQUOTEMARK characters.
*/
static void
static char *
argstr(char *p, int flag)
{
char c;
@ -231,9 +231,10 @@ argstr(char *p, int flag)
CHECKSTRSPACE(2, expdest);
switch (c = *p++) {
case '\0':
return (p - 1);
case CTLENDVAR:
case CTLENDARI:
goto breakloop;
return (p);
case CTLQUOTEMARK:
lit_quoted = 1;
/* "$@" syntax adherence hack */
@ -290,7 +291,6 @@ argstr(char *p, int flag)
expdest - stackblock(), 0);
}
}
breakloop:;
}
/*
@ -399,13 +399,11 @@ expari(char *p)
arith_t result;
int begoff;
int quoted;
int c;
int nesting;
int adj;
quoted = *p++ == '"';
begoff = expdest - stackblock();
argstr(p, 0);
p = argstr(p, 0);
removerecordregions(begoff);
STPUTC('\0', expdest);
start = stackblock() + begoff;
@ -424,20 +422,6 @@ expari(char *p)
STADJUST(adj, expdest);
if (!quoted)
recordregion(begoff, expdest - stackblock(), 0);
nesting = 1;
while (nesting > 0) {
c = *p++;
if (c == CTLESC)
p++;
else if (c == CTLARI)
nesting++;
else if (c == CTLENDARI)
nesting--;
else if (c == CTLVAR)
p++; /* ignore variable substitution byte */
else if (c == '\0')
return p - 1;
}
return p;
}