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[poincare/serialization_helper] Better ReplaceSysPrthesesByUsrPrtheses

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This commit is contained in:
Léa Saviot
2020-01-10 12:02:48 +01:00
parent a42b52d10e
commit c192d2c920
2 changed files with 21 additions and 17 deletions
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2
poincare/include/poincare/serialization_helper.h
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@@ -14,7 +14,7 @@ namespace Poincare {
namespace SerializationHelper {
void ReplaceSystemParenthesesByUserParentheses(char * buffer);
void ReplaceSystemParenthesesByUserParentheses(char * buffer, int length = -1);
// SerializableReference to text
int Infix(

36
poincare/src/serialization_helper.cpp
View File

@@ -6,23 +6,27 @@
namespace Poincare {
void replaceOneCharSizedCodePointWith(char * buffer, CodePoint searchedCodePoint, CodePoint newCodePoint) {
assert(UTF8Decoder::CharSizeOfCodePoint(searchedCodePoint == 1));
assert(UTF8Decoder::CharSizeOfCodePoint(newCodePoint == 1));
UTF8Helper::PerformAtCodePoints(
buffer,
searchedCodePoint,
[](int codePointOffset, void * text, int newCodePoint, int bufferLength) {
*((char *)text+codePointOffset) = (char)newCodePoint;
},
[](int c1, void * c2, int c3, int c4) {},
(void *)buffer,
newCodePoint);
}
void SerializationHelper::ReplaceSystemParenthesesByUserParentheses(char * buffer, int length) {
assert(UTF8Decoder::CharSizeOfCodePoint(UCodePointLeftSystemParenthesis == 1));
assert(UTF8Decoder::CharSizeOfCodePoint(UCodePointRightSystemParenthesis == 1));
assert(UTF8Decoder::CharSizeOfCodePoint('(' == 1));
assert(UTF8Decoder::CharSizeOfCodePoint(')' == 1));
assert(length == -1 || length > 0);
void SerializationHelper::ReplaceSystemParenthesesByUserParentheses(char * buffer) {
replaceOneCharSizedCodePointWith(buffer, UCodePointLeftSystemParenthesis, '(');
replaceOneCharSizedCodePointWith(buffer, UCodePointRightSystemParenthesis, ')');
int offset = 0;
char c = *(buffer + offset);
while (c != 0) {
if (c == UCodePointLeftSystemParenthesis) {
*(buffer + offset) = '(';
} else if (c == UCodePointRightSystemParenthesis) {
*(buffer + offset) = ')';
}
offset++;
if (length >= 0 && offset > length - 1) {
break;
}
c = *(buffer + offset);
}
}
static bool checkBufferSize(char * buffer, int bufferSize, int * result) {