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0000152: ash: quoting rules for local variables different to globals
This commit is contained in:
Paul Fox 2005-07-20 18:23:39 +00:00
parent 27cbffddd8
commit c3850c83d9
1 changed files with 22 additions and 11 deletions
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31
shell/ash.c
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@ -1353,6 +1353,7 @@ struct builtincmd {
#define IS_BUILTIN_SPECIAL(builtincmd) ((builtincmd)->name[0] & 1)
#define IS_BUILTIN_REGULAR(builtincmd) ((builtincmd)->name[0] & 2)
#define IS_BUILTIN_ASSIGN(builtincmd) ((builtincmd)->name[0] & 4)
static const struct builtincmd builtincmd[] = {
{ BUILTIN_SPEC_REG ".", dotcmd },
@ -3208,7 +3209,14 @@ parse_command_args(char **argv, const char **path)
}
#endif
static inline int
isassignment(const char *p)
{
const char *q = endofname(p);
if (p == q)
return 0;
return *q == '=';
}
/*
* Execute a simple command.
@ -3232,6 +3240,8 @@ evalcommand(union node *cmd, int flags)
int cmd_is_exec;
int status;
char **nargv;
struct builtincmd *bcmd;
int pseudovarflag = 0;
/* First expand the arguments. */
TRACE(("evalcommand(0x%lx, %d) called\n", (long)cmd, flags));
@ -3246,11 +3256,21 @@ evalcommand(union node *cmd, int flags)
*arglist.lastp = NULL;
argc = 0;
if (cmd->ncmd.args)
{
bcmd = find_builtin(cmd->ncmd.args->narg.text);
pseudovarflag = bcmd && IS_BUILTIN_ASSIGN(bcmd);
}
for (argp = cmd->ncmd.args; argp; argp = argp->narg.next) {
struct strlist **spp;
spp = arglist.lastp;
if (pseudovarflag && isassignment(argp->narg.text))
expandarg(argp, &arglist, EXP_VARTILDE);
else
expandarg(argp, &arglist, EXP_FULL | EXP_TILDE);
for (sp = *spp; sp; sp = sp->next)
argc++;
}
@ -9356,15 +9376,6 @@ static void setprompt(int);
static inline int
isassignment(const char *p)
{
const char *q = endofname(p);
if (p == q)
return 0;
return *q == '=';
}
/*
* Read and parse a command. Returns NEOF on end of file. (NULL is a