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@ -162,6 +162,29 @@ void str_validate(char *str, const char *last, bool allow_newlines, bool ignore)
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*dst = '\0';
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}
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bool StrValid(const char *str, const char *last)
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{
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/* Assume the ABSOLUTE WORST to be in str as it comes from the outside. */
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while (str <= last && *str != '\0') {
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size_t len = Utf8EncodedCharLen(*str);
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/* Encoded length is 0 if the character isn't known.
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* The length check is needed to prevent Utf8Decode to read
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* over the terminating '\0' if that happens to be placed
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* within the encoding of an UTF8 character. */
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if (len == 0 || str + len > last) return false;
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WChar c;
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len = Utf8Decode(&c, str);
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if (!IsPrintable(c) || (c >= SCC_SPRITE_START && c <= SCC_SPRITE_END)) {
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return false;
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}
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str += len;
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}
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return *str == '\0';
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}
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void str_strip_colours(char *str)
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{
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