/* radare - LGPL - Copyright 2009-2019 - pancake */ #include R_API bool r_name_validate_char(const char ch) { if ((ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || (IS_DIGIT(ch))) { return true; } switch (ch) { case ':': case '.': case '_': return true; } return false; } R_API bool r_name_check(const char *name) { /* Cannot start by number */ if (!name || !*name || IS_DIGIT (*name)) { return false; } /* Cannot contain non-alphanumeric chars + [:._] */ for (; *name != '\0'; name++) { if (!r_name_validate_char (*name)) { return false; } } return true; } static inline bool is_special_char (char *name) { const char n = *name; return (n == 'b' || n == 'f' || n == 'n' || n == 'r' || n == 't' || n == 'v' || n == 'a'); } R_API bool r_name_filter(char *name, int maxlen) { size_t i, len; if (!name) { return false; } if (maxlen < 0) { maxlen = strlen (name); } r_str_trim (name); char *oname = name; for (i = 0; *name; name++, i++) { if (maxlen && i > maxlen) { *name = '\0'; break; } if (!r_name_validate_char (*name) && *name != '\\') { *name = '_'; // r_str_ccpy (name, name+1, 0); //name--; } } while (i > 0) { if (*(name - 1) == '\\' && is_special_char (name)) { *name = '_'; *(name - 1) = '_'; } if (*name == '\\') { *name = '_'; } name--; i--; } if (*name == '\\') { *name = '_'; } // trimming trailing and leading underscores len = strlen (name); for (; len > 0 && *(name + len - 1) == '_'; len--) { ; } if (!len) { // name consists only of underscores return r_name_check (oname); } for (i = 0; *(name + i) == '_'; i++, len--) { ; } memmove (name, name + i, len); *(name + len) = '\0'; return r_name_check (oname); } R_API char *r_name_filter2(const char *name) { size_t i; while (!IS_PRINTABLE (*name)) { name++; } char *res = strdup (name); for (i = 0; res[i]; i++) { if (!r_name_validate_char (res[i])) { res[i] = '_'; } } return res; }