diff options
Diffstat (limited to 'shell/msh.c')
| -rw-r--r-- | shell/msh.c | 17 |
1 files changed, 8 insertions, 9 deletions
diff --git a/shell/msh.c b/shell/msh.c index 41f4cc60d..d9dd3efb2 100644 --- a/shell/msh.c +++ b/shell/msh.c @@ -1191,23 +1191,22 @@ static int isassign(const char *s) unsigned char c; DBGPRINTF7(("ISASSIGN: enter, s=%s\n", s)); - /* no isalpha() - we shouldn't use locale */ c = *s; - if (c != '_' - && (unsigned)((c|0x20) - 'a') > 25 /* not letter */ - ) { + /* no isalpha() - we shouldn't use locale */ + /* c | 0x20 - lowercase (Latin) letters */ + if (c != '_' && (unsigned)((c|0x20) - 'a') > 25) + /* not letter */ return 0; - } + while (1) { c = *++s; - if (c == '\0') - return 0; if (c == '=') return 1; - c |= 0x20; /* lowercase letters, doesn't affect numbers */ + if (c == '\0') + return 0; if (c != '_' && (unsigned)(c - '0') > 9 /* not number */ - && (unsigned)(c - 'a') > 25 /* not letter */ + && (unsigned)((c|0x20) - 'a') > 25 /* not letter */ ) { return 0; } |