76 lines
2.2 KiB
C++
76 lines
2.2 KiB
C++
/*
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Some helper string functions
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JrCs 2014
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*/
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#include <Platform.h> // Only use angled for Platform, else, xcode project won't compile
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#define DBG(...) DebugLog(1, __VA_ARGS__)
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XString8 NonDetected = "10.10.10"_XS8; //longer string
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/**
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Convert a Null-terminated ASCII string representing version number (separate by dots)
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to a UINT64 value.
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If Version is NULL, then result is 0.
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@param Version The pointer to a Null-terminated ASCII version string. Like 10.9.4
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@param MaxDigitByPart Is the maximum number of digits between the dot separators
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@param MaxParts Is the maximum number of parts (blocks between dot separators)
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the version is composed. For a string like 143.5.77.26 the
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MaxParts is 4
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@return Result
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**/
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UINT64 AsciiStrVersionToUint64(const LString8& Version_, UINT8 MaxDigitByPart, UINT8 MaxParts)
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{
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const XString8 Version = Version_;
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// DebugLog(1, "call Version %s\n", Version.c_str());
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return AsciiStrVersionToUint64(Version, MaxDigitByPart, MaxParts);
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}
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UINT64 AsciiStrVersionToUint64(const XString8& Version_, UINT8 MaxDigitByPart, UINT8 MaxParts)
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{
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UINT64 result = 0;
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UINT16 part_value = 0;
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UINT16 part_mult = 1;
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UINT16 max_part_value;
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const XString8* VersionPtr = &Version_;
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if (VersionPtr->isEmpty()) {
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VersionPtr = &NonDetected; //pointer to non-NULL string
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}
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const XString8& Version = *VersionPtr;
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while (MaxDigitByPart--) {
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part_mult = part_mult * 10;
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}
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max_part_value = part_mult - 1;
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size_t idx = 0;
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while (idx < Version.length() && MaxParts > 0) {
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if (Version[idx] >= '0' && Version[idx] <= '9') {
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part_value = part_value * 10 + (UINT16)(Version[idx] - '0');
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// DebugLog(1, "part_value=%d\n", (int)part_value);
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if (part_value > max_part_value)
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part_value = max_part_value;
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}
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else if (Version[idx] == '.') {
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result = (result * part_mult) + part_value;
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// DebugLog(1, "result=%lld\n", result);
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part_value = 0;
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MaxParts--;
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}
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idx++;
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}
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while (MaxParts--) {
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result = (result * part_mult) + part_value;
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part_value = 0; // part_value is only used at first pass
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}
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return result;
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}
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