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[ES] Added missing functionality

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Signed-óff-by: Jim Martens <github@2martens.de>
This commit is contained in:
Jim Martens
2015-07-07 12:39:03 +02:00
parent d08780bdb3
commit 19f7cfc78f
1 changed files with 25 additions and 18 deletions
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43
es/blatt6/uebung6-1/uebung6-1.ino
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@ -352,20 +352,10 @@ const char* readString(File file)
if (file) {
unsigned long fileSize = file.size();
char result[fileSize];
int i = 0;
while (file.available()) {
char c = file.read();
if (c != '\n') {
result[i] = c;
i++;
}
else {
result[i] = '\0';
break; // allows for multiple calls of the method for iterative reading
}
}
int readBytes = file.readBytesUntil('\n', result, fileSize);
result[readBytes] = '\0';
readStringLength = i;
readStringLength = readBytes + 1;
return result;
}
@ -380,12 +370,30 @@ const char* readString(File file)
*
* @param const int* input
* @param int length
* @param char delimeter
*/
const int* explodeString(const char* input, int length)
const int* explodeString(const char* input, int length, char delimeter)
{
int result[length] = {};
char tmp[length] = {};
int nthChar = 0;
int nthInt = 0;
// TODO do some magic
for (int i = 0; i < length; i++) {
char currentChar = input[i];
if (currentChar != delimeter) {
tmp[nthChar] = input[i];
nthChar++;
}
else {
char *end;
tmp[nthChar] = '\0';
result[nthInt] = (int) strtol(tmp, &end, 10);
nthChar = 0;
memset(&tmp[0], 0, sizeof(tmp));
nthInt++;
}
}
return result;
}
@ -450,9 +458,8 @@ void showFile(String fileName)
int pixelsLength = readStringLength;
// parse dimensions and pixels
// TODO is there some kind of explode? - that is exactly what we need
const int* dimensionsInt = explodeString(dimensions, dimensionsLength);
const int* pixelsInt = explodeString(pixels, pixelsLength);
const int* dimensionsInt = explodeString(dimensions, dimensionsLength, ',');
const int* pixelsInt = explodeString(pixels, pixelsLength, ',');
// calculate x and y start positions
int rows = dimensionsInt[0];
int cols = dimensionsInt[1];