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Simplify DqnJson array iterator, fixed string ctor change

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Doyle T 2018-06-25 20:51:18 +10:00
parent 920df31c51
commit 5d77aa3f4a
1 changed files with 47 additions and 32 deletions
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79
dqn.h
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@ -675,7 +675,7 @@ struct DqnSlice
DqnSlice() = default; DqnSlice() = default;
DqnSlice(T *str, i32 len) { this->data = str; this->len = len; } DqnSlice(T *str, i32 len) { this->data = str; this->len = len; }
}; };
#define DQN_SLICE_NAME(name) DqnSlice<char const>(name, DQN_CHAR_COUNT(name)) #define DQN_SLICE(literal) DqnSlice<char const>(literal, DQN_CHAR_COUNT(literal))
#define DQN_SLICE_CMP(a, b, ignoreCase) (a.len == b.len && (DqnStr_Cmp(a.data, b.data, a.len, ignoreCase) == 0)) #define DQN_SLICE_CMP(a, b, ignoreCase) (a.len == b.len && (DqnStr_Cmp(a.data, b.data, a.len, ignoreCase) == 0))
// #DqnChar API // #DqnChar API
@ -747,8 +747,11 @@ DQN_FILE_SCOPE inline DqnSlice<char> DqnStr_RemoveLeadTrailBraces (char const *s
// Return the len of the derived string. If buf is nullptr and or bufSize is 0 the function returns the // Return the len of the derived string. If buf is nullptr and or bufSize is 0 the function returns the
// required string length for the integer // required string length for the integer
// TODO NOTE(doyle): Parsing stops when a non-digit is encountered, so numbers with ',' don't work atm. // TODO NOTE(doyle): Parsing stops when a non-digit is encountered, so numbers with ',' don't work atm.
DQN_FILE_SCOPE i32 Dqn_I64ToStr(i64 const value, char *buf, i32 bufSize); DQN_FILE_SCOPE i32 Dqn_I64ToStr(i64 const value, char *buf, i32 bufSize);
DQN_FILE_SCOPE i64 Dqn_StrToI64(char const *buf, i64 bufSize); DQN_FILE_SCOPE i64 Dqn_StrToI64(char const *buf, i64 bufSize);
DQN_FILE_SCOPE inline i64 Dqn_StrToI64(DqnSlice<char const> buf) { return Dqn_StrToI64(buf.data, buf.len); }
DQN_FILE_SCOPE inline i64 Dqn_StrToI64(DqnSlice<char> buf) { return Dqn_StrToI64(buf.data, buf.len); }
// WARNING: Not robust, precision errors and whatnot but good enough! // WARNING: Not robust, precision errors and whatnot but good enough!
DQN_FILE_SCOPE f32 Dqn_StrToF32(char const *buf, i64 bufSize); DQN_FILE_SCOPE f32 Dqn_StrToF32(char const *buf, i64 bufSize);
@ -2038,7 +2041,8 @@ struct DqnFixedString
char str[MAX]; char str[MAX];
DqnFixedString(): len(0) { this->str[0] = 0; } DqnFixedString(): len(0) { this->str[0] = 0; }
DqnFixedString(char const *str, int len = -1) { this->len = DqnFixedString__Append(this->str, MAX, str, len); } DqnFixedString(char const *str) { this->len = DqnFixedString__Append(this->str, MAX, str, -1); }
DqnFixedString(char const *str, int len) { this->len = DqnFixedString__Append(this->str, MAX, str, len); }
DqnFixedString(DqnSlice<char const> const &other) { this->len = DqnFixedString__Append(this->str, MAX, other.data, other.len); } DqnFixedString(DqnSlice<char const> const &other) { this->len = DqnFixedString__Append(this->str, MAX, other.data, other.len); }
DqnFixedString(DqnSlice<char> const &other) { this->len = DqnFixedString__Append(this->str, MAX, other.data, other.len); } DqnFixedString(DqnSlice<char> const &other) { this->len = DqnFixedString__Append(this->str, MAX, other.data, other.len); }
DqnFixedString(DqnFixedString const &other) { if (this != &other) this->len = DqnFixedString__Append(this->str, MAX, other.str, other.len); } DqnFixedString(DqnFixedString const &other) { if (this != &other) this->len = DqnFixedString__Append(this->str, MAX, other.str, other.len); }
@ -2641,7 +2645,8 @@ struct DqnJson
DqnSlice<char> value; DqnSlice<char> value;
i32 numEntries; i32 numEntries;
operator bool() const { return (value.data != nullptr); } operator bool () const { return (value.data != nullptr); }
i64 ToI64() const { return Dqn_StrToI64(value.data, value.len); }
}; };
// Zero allocation json finder. Returns the data of the value. // Zero allocation json finder. Returns the data of the value.
@ -2654,10 +2659,8 @@ DQN_FILE_SCOPE DqnJson DqnJson_Get (DqnSlice<char const> const buf,
DQN_FILE_SCOPE DqnJson DqnJson_Get (DqnJson const input, DqnSlice<char const> const findProperty); DQN_FILE_SCOPE DqnJson DqnJson_Get (DqnJson const input, DqnSlice<char const> const findProperty);
DQN_FILE_SCOPE DqnJson DqnJson_Get (DqnJson const input, DqnSlice<char> const findProperty); DQN_FILE_SCOPE DqnJson DqnJson_Get (DqnJson const input, DqnSlice<char> const findProperty);
// newInput: (Optional) Returns the input advanced to the next array item, can be used again with
// function to get next array item.
// return: The array item. // return: The array item.
DQN_FILE_SCOPE DqnJson DqnJson_GetNextArrayItem(DqnJson const input, DqnJson *newInput); DQN_FILE_SCOPE DqnJson DqnJson_GetNextArrayItem(DqnJson *iterator);
#endif /* DQN_H */ #endif /* DQN_H */
@ -6439,17 +6442,31 @@ wchar_t *DqnString::ToWChar(DqnMemAPI *api) const
// return: The number of bytes written to dest // return: The number of bytes written to dest
FILE_SCOPE int DqnFixedString__Append(char *dest, int destSize, char const *src, int len) FILE_SCOPE int DqnFixedString__Append(char *dest, int destSize, char const *src, int len)
{ {
i32 realLen = 0;
if (len <= -1) if (len <= -1)
{ {
len = DqnStr_Len(src); char *ptr = dest;
char *end = ptr + destSize;
while (*src && ptr != end)
*ptr++ = *src++;
if (ptr == end)
{
DQN_ASSERT(!src[0]);
}
realLen = ptr - dest;
}
else
{
realLen = DQN_MIN(len, destSize - 1);
DqnMem_Copy(dest, src, realLen);
} }
i32 bytesToCopy = DQN_MIN(len, destSize - 1); DQN_ASSERT(realLen <= destSize && realLen >= 0);
DQN_ASSERT(len <= destSize && bytesToCopy >= 0); dest[realLen] = 0;
return realLen;
DqnMem_Copy(dest, src, bytesToCopy);
dest[bytesToCopy] = 0;
return bytesToCopy;
} }
// #Dqn // #Dqn
@ -6689,30 +6706,28 @@ DQN_FILE_SCOPE DqnJson DqnJson_Get(DqnJson const input, DqnSlice<char const> con
return result; return result;
} }
DQN_FILE_SCOPE DqnJson DqnJson_GetNextArrayItem(DqnJson const input, DqnJson *newInput) DQN_FILE_SCOPE DqnJson DqnJson_GetNextArrayItem(DqnJson *iterator)
{ {
DqnJson result = {}; DqnJson result = {};
if (input.type != DqnJson::Type::Array || input.numEntries <= 0) if (iterator->type != DqnJson::Type::Array || iterator->numEntries <= 0)
return result; return result;
result = DqnJson_Get(input.value, DQN_SLICE_NAME("{")); result = DqnJson_Get(iterator->value, DQN_SLICE("{"));
if (result && newInput) if (result)
{ {
*newInput = input; char const *end = iterator->value.data + iterator->value.len;
char const *end = input.value.data + input.value.len; iterator->value.data = result.value.data + result.value.len;
newInput->value.data = result.value.data + result.value.len; iterator->numEntries--;
newInput->numEntries--;
while (newInput->value.data[0] && *newInput->value.data++ != '}') while (iterator->value.data[0] && *iterator->value.data++ != '}')
; ;
newInput->value.data = DqnChar_SkipWhitespace(newInput->value.data); iterator->value.data = DqnChar_SkipWhitespace(iterator->value.data);
if (newInput->value.data[0] && newInput->value.data[0] == ',') if (iterator->value.data[0] && iterator->value.data[0] == ',')
newInput->value.data++; iterator->value.data++;
newInput->value.data = DqnChar_SkipWhitespace(newInput->value.data); iterator->value.data = DqnChar_SkipWhitespace(iterator->value.data);
iterator->value.len = (iterator->value.data) ? static_cast<i32>(end - iterator->value.data) : 0;
newInput->value.len = (newInput->value.data) ? static_cast<i32>(end - newInput->value.data) : 0;
} }
return result; return result;
@ -8957,7 +8972,7 @@ DQN_PLATFORM_INTERNAL_GET_NUM_CORES_AND_THREADS(DqnPlatformInternal_GetNumCoresA
{ {
*numThreadsPerCore = 0; *numThreadsPerCore = 0;
// Find the offset to the processor field and move to it // Find the offset to the processor field and move to it
DqnSlice<char const> processor = DQN_SLICE_NAME("processor"); DqnSlice<char const> processor = DQN_SLICE("processor");
i32 processorOffset = DqnStr_FindFirstOccurence(srcPtr, srcLen, processor.data, processor.len); i32 processorOffset = DqnStr_FindFirstOccurence(srcPtr, srcLen, processor.data, processor.len);
DQN_ASSERT(processorOffset != -1); DQN_ASSERT(processorOffset != -1);
@ -8977,7 +8992,7 @@ DQN_PLATFORM_INTERNAL_GET_NUM_CORES_AND_THREADS(DqnPlatformInternal_GetNumCoresA
{ {
*numCores = 0; *numCores = 0;
// Find the offset to the cpu cores field and move to it // Find the offset to the cpu cores field and move to it
DqnSlice<char const> cpuCores = DQN_SLICE_NAME("cpu cores"); DqnSlice<char const> cpuCores = DQN_SLICE("cpu cores");
i32 cpuCoresOffset = DqnStr_FindFirstOccurence(srcPtr, srcLen, cpuCores.data, cpuCores.len); i32 cpuCoresOffset = DqnStr_FindFirstOccurence(srcPtr, srcLen, cpuCores.data, cpuCores.len);
DQN_ASSERT(cpuCoresOffset != -1); DQN_ASSERT(cpuCoresOffset != -1);