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Updated to require C++17 and use exceptions.

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This commit is contained in:
Teal Dulcet
2024-11-13 09:31:42 -08:00
parent 370dde9025
commit 8fa05e23c8
10 changed files with 182 additions and 273 deletions
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159
graphs.hpp
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@@ -168,52 +168,30 @@ namespace graphs
bool check = true;
};
template <typename T>
constexpr size_t size(const T &array)
{
return distance(cbegin(array), cend(array));
}
// Number of columns needed to represent the string
// Adapted from: https://stackoverflow.com/a/31124065
inline int strcol(const char *const str)
inline int strcol(const string &str)
{
size_t length = strlen(str);
for (size_t i = 0; i < length; ++i)
if (iscntrl(str[i]))
for (const char c : str)
if (iscntrl(c))
{
cerr << "\nError! Control character in string.\n";
cout << "Control character: " << (int)str[i] << '\n';
cerr << "\nError: Control character in string.\n";
cout << "Control character: " << (int)c << '\n';
}
length = mbstowcs(nullptr, str, 0);
size_t length = mbstowcs(nullptr, str.c_str(), 0);
if (length == static_cast<size_t>(-1))
{
cerr << "\nError! mbstowcs failed. Invalid multibyte character.\n";
exit(1);
}
throw range_error("Error: mbstowcs failed. Invalid multibyte character.");
++length;
auto *wcstring = new wchar_t[length];
wstring wcstring(length, L'\0');
if (mbstowcs(wcstring, str, length) == static_cast<size_t>(-1))
{
if (wcstring)
delete[] wcstring;
if (mbstowcs(wcstring.data(), str.c_str(), length) == static_cast<size_t>(-1))
throw range_error("Error: mbstowcs failed. Invalid multibyte character.");
cerr << "\nError! mbstowcs failed. Invalid multibyte character.\n";
exit(1);
}
const int width = wcswidth(wcstring, length);
const int width = wcswidth(wcstring.c_str(), length);
if (width == -1)
{
cerr << "\nError! wcswidth failed. Nonprintable wide character.\n";
exit(1);
}
if (wcstring)
delete[] wcstring;
throw range_error("Error: wcswidth failed. Nonprintable wide character.");
return width;
}
@@ -221,7 +199,7 @@ namespace graphs
// Word wrap
// Source: https://gist.github.com/tdulcet/819821ca69501822ad3f84a060c640a0
// Adapted from: https://stackoverflow.com/a/42016346 and https://stackoverflow.com/a/13094734
inline string wrap(const char *const str, const size_t line_length)
inline string wrap(const string &str, const size_t line_length)
{
string words = str;
string wrapped;
@@ -245,9 +223,7 @@ namespace graphs
++tempindex;
}
const string temp = words.substr(index - linelen, templinelen);
const size_t width = strcol(temp.c_str());
const size_t width = strcol(words.substr(index - linelen, templinelen));
if (width >= line_length)
{
@@ -343,7 +319,8 @@ namespace graphs
strm << setprecision(0) << fixed << number;
}
strm << (power < graphs::size(suffix_power_char) ? suffix_power_char[power] : "(error)");
// power == 1 and scale == units_scale_SI ? "k" :
strm << (power < size(suffix_power_char) ? suffix_power_char[power] : "(error)");
if (scale == units_scale_IEC_I and power > 0)
strm << "i";
@@ -360,7 +337,7 @@ namespace graphs
long double intpart = 0;
const long double fractionpart = abs(modf(number, &intpart));
for (size_t i = 0; i < graphs::size(fractions) and !output; ++i)
for (size_t i = 0; i < size(fractions) and !output; ++i)
{
if (abs(fractionpart - fractionvalues[i]) <= DBL_EPSILON * n)
{
@@ -377,7 +354,7 @@ namespace graphs
if (n > DBL_EPSILON)
{
for (size_t i = 0; i < graphs::size(constants) and !output; ++i)
for (size_t i = 0; i < size(constants) and !output; ++i)
{
if (abs(fmod(number, constantvalues[i])) <= DBL_EPSILON * n)
{
@@ -442,7 +419,7 @@ namespace graphs
break;
}
const size_t length = strcol(strm.str().c_str());
const size_t length = strcol(strm.str());
return length;
}
@@ -450,7 +427,7 @@ namespace graphs
// Output graph
inline int graph(const size_t height, const size_t width, const long double xmin, const long double xmax, const long double ymin, const long double ymax, const vector<vector<unsigned short>> &array, const options &aoptions)
{
if (!graphs::size(array))
if (!size(array))
return 1;
const bool border = aoptions.border;
@@ -461,10 +438,10 @@ namespace graphs
const type_type type = aoptions.type;
const char *const title = aoptions.title;
if (height == 0)
if (!height)
return 1;
if (width == 0)
if (!width)
return 1;
struct winsize w;
@@ -580,7 +557,7 @@ namespace graphs
}
else if (axaxis)
{
if (i == 0)
if (!i)
{
cout << astyle[4];
output = true;
@@ -611,7 +588,7 @@ namespace graphs
}
else if (ayaxis)
{
if (j == 0)
if (!j)
{
cout << astyle[2];
output = true;
@@ -645,7 +622,7 @@ namespace graphs
cout << '0';
output = true;
}
else if ((xaxis <= (width - aj) ? j >= (width - aj) : j == 0) and yaxislabel and axislabel)
else if ((xaxis <= (width - aj) ? j >= (width - aj) : !j) and yaxislabel and axislabel)
{
cout << 'x';
output = true;
@@ -691,7 +668,7 @@ namespace graphs
}
}
}
else if ((yaxis >= ai ? i == 0 : i >= (height - ai)) and xaxislabel and axislabel)
else if ((yaxis >= ai ? !i : i >= (height - ai)) and xaxislabel and axislabel)
{
cout << 'y';
output = true;
@@ -720,7 +697,7 @@ namespace graphs
if (type == type_histogram)
{
if (!dot)
dot = (graphs::size(bars) - l) - 1;
dot = (size(bars) - l) - 1;
}
else if (type == type_block)
dot += blockvalues[k][l];
@@ -776,7 +753,7 @@ namespace graphs
template <typename T>
int histogram(size_t height, size_t width, long double xmin, long double xmax, long double ymin, long double ymax, const T &aarray, const options &aoptions = {})
{
if (!graphs::size(aarray))
if (!size(aarray))
return 1;
const color_type color = aoptions.color;
@@ -784,10 +761,10 @@ namespace graphs
struct winsize w;
ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
if (height == 0)
if (!height)
height = w.ws_row * 4;
if (width == 0)
if (!width)
width = w.ws_col * 2;
if (aoptions.check)
@@ -811,12 +788,12 @@ namespace graphs
height *= 2;
width /= 2;
if (xmin == 0 and xmax == 0)
if (!xmin and !xmax)
{
const auto &minmax = minmax_element(begin(aarray), end(aarray));
const auto &[amin, amax] = minmax_element(cbegin(aarray), cend(aarray));
xmin = *minmax.first;
xmax = *minmax.second;
xmin = *amin;
xmax = *amax;
}
if (xmin >= xmax)
@@ -838,12 +815,12 @@ namespace graphs
}
}
if (ymin == 0 and ymax == 0)
if (!ymin and !ymax)
{
const auto &minmax = minmax_element(histogram.begin(), histogram.end());
const auto &[amin, amax] = minmax_element(histogram.cbegin(), histogram.cend());
ymin = *minmax.first;
ymax = *minmax.second;
ymin = *amin;
ymax = *amax;
}
if (ymin >= ymax)
@@ -859,15 +836,16 @@ namespace graphs
const unsigned acolor = color + 1;
for (size_t x = 0; x < graphs::size(histogram); ++x)
for (size_t x = 0; x < size(histogram); ++x)
{
const size_t ay = histogram[x];
for (size_t y = ay >= ymax ? 0 : yaxis - (ay / ystep); y < yaxis and y < height; ++y)
aaarray[x][y] = acolor;
}
if (aoptions.type != type_histogram) {
if (aoptions.type != type_histogram)
{
options hist_options = aoptions;
hist_options.type = type_histogram;
return graph(height, width, xmin, xmax, ymin, ymax, aaarray, hist_options);
@@ -878,7 +856,7 @@ namespace graphs
template <typename T>
int histogram(size_t height, size_t width, long double xmin, long double xmax, long double ymin, long double ymax, const size_t rows, T *aarray, const options &aoptions = {})
{
if (rows == 0)
if (!rows)
return 1;
vector<T> aaarray(rows);
@@ -891,12 +869,12 @@ namespace graphs
template <typename T>
int plots(size_t height, size_t width, long double xmin, long double xmax, long double ymin, long double ymax, const T &arrays, const options &aoptions = {})
{
if (!graphs::size(arrays))
if (!size(arrays))
return 1;
if (!all_of(cbegin(arrays), cend(arrays), [](const auto &array)
{ return all_of(cbegin(array), cend(array), [](const auto &x)
{ return graphs::size(x) == 2; }); }))
{ return size(x) == 2; }); }))
{
cerr << "Error: The arrays must have two columns.\n";
return 1;
@@ -907,10 +885,10 @@ namespace graphs
struct winsize w;
ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
if (height == 0)
if (!height)
height = w.ws_row * 4;
if (width == 0)
if (!width)
width = w.ws_col * 2;
if (aoptions.check)
@@ -934,24 +912,24 @@ namespace graphs
if (aoptions.type == type_block)
height /= 2;
if (xmin == 0 and xmax == 0)
if (!xmin and !xmax)
{
const auto compare = [](const auto &a, const auto &b)
{ return a[0] < b[0]; };
const auto &result = accumulate(begin(arrays), end(arrays), make_pair(arrays[0][0], arrays[0][0]), [compare](const auto &current, const auto &array)
{ const auto &minmax = minmax_element(begin(array), end(array), compare); return make_pair(min(current.first, *minmax.first, compare), max(current.second, *minmax.second, compare)); });
xmin = result.first[0];
xmax = result.second[0];
const auto &[amin, amax] = accumulate(cbegin(arrays), cend(arrays), make_pair(arrays[0][0], arrays[0][0]), [&compare](const auto &current, const auto &array)
{ const auto &[amin, amax] = minmax_element(cbegin(array), cend(array), compare); return make_pair(min(current.first, *amin, compare), max(current.second, *amax, compare)); });
xmin = amin[0];
xmax = amax[0];
}
if (ymin == 0 and ymax == 0)
if (!ymin and !ymax)
{
const auto compare = [](const auto &a, const auto &b)
{ return a[1] < b[1]; };
const auto &result = accumulate(begin(arrays), end(arrays), make_pair(arrays[0][0], arrays[0][0]), [compare](const auto &current, const auto &array)
{ const auto &minmax = minmax_element(begin(array), end(array), compare); return make_pair(min(current.first, *minmax.first, compare), max(current.second, *minmax.second, compare)); });
ymin = result.first[1];
ymax = result.second[1];
const auto &[amin, amax] = accumulate(cbegin(arrays), cend(arrays), make_pair(arrays[0][0], arrays[0][0]), [&compare](const auto &current, const auto &array)
{ const auto &[amin, amax] = minmax_element(cbegin(array), cend(array), compare); return make_pair(min(current.first, *amin, compare), max(current.second, *amax, compare)); });
ymin = amin[1];
ymax = amax[1];
}
if (xmin >= xmax)
@@ -973,12 +951,12 @@ namespace graphs
vector<vector<unsigned short>> aarray(width, vector<unsigned short>(height, 0));
for (size_t j = 0; j < graphs::size(arrays); ++j)
for (size_t j = 0; j < size(arrays); ++j)
{
const auto &array = arrays[j];
const unsigned acolor = graphs::size(arrays) == 1 ? color + 1 : (j % (graphs::size(colors) - 2)) + 3;
const unsigned acolor = size(arrays) == 1 ? color + 1 : (j % (size(colors) - 2)) + 3;
for (size_t i = 0; i < graphs::size(array); ++i)
for (size_t i = 0; i < size(array); ++i)
{
const auto &x = array[i][0], &y = array[i][1];
@@ -987,10 +965,10 @@ namespace graphs
const size_t ax = (x / xstep) + xaxis;
const size_t ay = (yaxis - (y / ystep)) - 1;
for (const auto &mark : marks[aoptions.mark])
for (const auto &[ix, iy] : marks[aoptions.mark])
{
const size_t x = ax + mark[0];
const size_t y = ay + mark[1];
const size_t x = ax + ix;
const size_t y = ay + iy;
if (x < width and y < height)
{
@@ -1023,7 +1001,7 @@ namespace graphs
template <typename T>
int plot(size_t height, size_t width, long double xmin, long double xmax, long double ymin, long double ymax, const size_t rows, T **aarray, const options &aoptions = {})
{
if (rows == 0)
if (!rows)
return 1;
const size_t columns = 2;
@@ -1040,16 +1018,16 @@ namespace graphs
{
const color_type color = aoptions.color;
if (numfunctions == 0)
if (!numfunctions)
return 1;
struct winsize w;
ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
if (height == 0)
if (!height)
height = w.ws_row * 4;
if (width == 0)
if (!width)
width = w.ws_col * 2;
if (aoptions.check)
@@ -1097,7 +1075,7 @@ namespace graphs
for (size_t j = 0; j < numfunctions; ++j)
{
const unsigned short acolor = numfunctions == 1 ? color + 1 : (j % (graphs::size(colors) - 2)) + 3;
const unsigned short acolor = numfunctions == 1 ? color + 1 : (j % (size(colors) - 2)) + 3;
for (size_t i = 0; i < rows * xres; ++i)
{
@@ -1140,5 +1118,4 @@ namespace graphs
return functions(height, width, xmin, xmax, ymin, ymax, 1, afunctions, aoptions);
}
}