diff options
Diffstat (limited to 'shell')
| -rw-r--r-- | shell/msh.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/shell/msh.c b/shell/msh.c index 92a0f8536..e16d6f304 100644 --- a/shell/msh.c +++ b/shell/msh.c @@ -1261,7 +1261,7 @@ static void ronly(vp) struct var *vp; { - if (isalpha(vp->name[0])) /* not an internal symbol ($# etc) */ + if (isalpha(vp->name[0]) || vp->name[0] == '_') /* not an internal symbol */ vp->status |= RONLY; } @@ -1269,10 +1269,10 @@ static int isassign(s) register char *s; { - if (!isalpha((int)*s)) + if (!isalpha((int)*s) && *s != '_') return(0); for (; *s != '='; s++) - if (*s == 0 || !isalnum(*s)) + if (*s == 0 || (!isalnum(*s) && *s != '_')) return(0); return(1); } @@ -1285,10 +1285,10 @@ int cf; register char *cp; struct var *vp; - if (!isalpha(*s)) + if (!isalpha(*s) && *s != '_') return(0); for (cp = s; *cp != '='; cp++) - if (*cp == 0 || !isalnum(*cp)) + if (*cp == 0 || (!isalnum(*cp) && *cp != '_')) return(0); vp = lookup(s); nameval(vp, ++cp, cf == COPYV? (char *)NULL: s); @@ -1301,10 +1301,10 @@ static int checkname(cp) register char *cp; { - if (!isalpha(*cp++)) + if (!isalpha(*cp++) && *(cp-1) != '_') return(0); while (*cp) - if (!isalnum(*cp++)) + if (!isalnum(*cp++) && *(cp-1) != '_') return(0); return(1); } @@ -1316,7 +1316,7 @@ register int f, out; register struct var *vp; for (vp = vlist; vp; vp = vp->next) - if (vp->status & f && isalpha(*vp->name)) { + if (vp->status & f && (isalpha(*vp->name) || *vp->name == '_')) { if (vp->status & EXPORT) write(out, "export ", 7); if (vp->status & RONLY) @@ -3406,7 +3406,7 @@ varput(s, out) register char *s; int out; { - if (isalnum(*s)) { + if (isalnum(*s) || *s == '_') { write(out, s, strlen(s)); write(out, "\n", 1); } @@ -3613,7 +3613,7 @@ loop: c = 0; } unget(c); - if (!isalpha(c)) + if (!isalpha(c) && c != '_') scanequals = 0; for (;;) { c = subgetc('"', foundequals); @@ -3631,7 +3631,7 @@ loop: foundequals = 1; scanequals = 0; } - else if (!isalnum(c)) + else if (!isalnum(c) && c != '_') scanequals = 0; } *e.linep++ = c; @@ -3684,8 +3684,8 @@ int quoted; s = e.linep; if (c != '{') { *e.linep++ = c; - if (isalpha(c)) { - while ((c = readc())!=0 && isalnum(c)) + if (isalpha(c) || c == '_') { + while ((c = readc())!=0 && (isalnum(c) || c == '_')) if (e.linep < elinep) *e.linep++ = c; unget(c); |