diff options
Diffstat (limited to 'coreutils')
| -rw-r--r-- | coreutils/tr.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/coreutils/tr.c b/coreutils/tr.c index 15a9d17..752b13b 100644 --- a/coreutils/tr.c +++ b/coreutils/tr.c @@ -116,7 +116,8 @@ static unsigned int expand(const char *arg, register unsigned char *buffer) arg += 3; /* Skip the assumed a-z */ } else if (*arg == '[') { arg++; - if (ENABLE_FEATURE_TR_CLASSES && *arg++ == ':') { + i = *arg++; + if (ENABLE_FEATURE_TR_CLASSES && i == ':') { if (strncmp(arg, "alpha", 5) == 0) { for (i = 'A'; i <= 'Z'; i++) *buffer++ = i; @@ -124,12 +125,12 @@ static unsigned int expand(const char *arg, register unsigned char *buffer) *buffer++ = i; } else if (strncmp(arg, "alnum", 5) == 0) { + for (i = '0'; i <= '9'; i++) + *buffer++ = i; for (i = 'A'; i <= 'Z'; i++) *buffer++ = i; for (i = 'a'; i <= 'z'; i++) *buffer++ = i; - for (i = '0'; i <= '9'; i++) - *buffer++ = i; } else if (strncmp(arg, "digit", 5) == 0) for (i = '0'; i <= '9'; i++) @@ -140,10 +141,15 @@ static unsigned int expand(const char *arg, register unsigned char *buffer) else if (strncmp(arg, "upper", 5) == 0) for (i = 'A'; i <= 'Z'; i++) *buffer++ = i; - else if (strncmp(arg, "space", 5) == 0) - strcat((char*)buffer, " \f\n\r\t\v"); - else if (strncmp(arg, "blank", 5) == 0) - strcat((char*)buffer, " \t"); + else if (strncmp(arg, "space", 5) == 0) { + const char s[] = "\t\n\v\f\r "; + strcat((char*)buffer, s); + buffer += sizeof(s) - 1; + } + else if (strncmp(arg, "blank", 5) == 0) { + *buffer++ = '\t'; + *buffer++ = ' '; + } /* gcc gives a warning if braces aren't used here */ else if (strncmp(arg, "punct", 5) == 0) { for (i = 0; i <= ASCII; i++) @@ -156,13 +162,13 @@ static unsigned int expand(const char *arg, register unsigned char *buffer) *buffer++ = i; } else { - strcat((char*)buffer, "[:"); - arg++; + *buffer++ = '['; + *buffer++ = ':'; continue; } break; } - if (ENABLE_FEATURE_TR_EQUIV && *arg++ == '=') { + if (ENABLE_FEATURE_TR_EQUIV && i == '=') { *buffer++ = *arg; /* skip the closing =] */ arg += 3; @@ -173,7 +179,6 @@ static unsigned int expand(const char *arg, register unsigned char *buffer) arg -= 2; continue; } - i = *arg++; ac = *arg++; while (i <= ac) *buffer++ = i++; |