mirror of
https://github.com/GothenburgBitFactory/taskwarrior.git
synced 2025-07-07 20:06:36 +02:00
Performance
- Found some inefficient string initialization in Table.cpp, report.cpp, and in switching over to using more std::string capabilities, realized a 25% boost in Table::render speed. - Eliminated Table::suppressWS. - Eliminated Table::clean.
This commit is contained in:
Paul Beckingham
parent
25db00e97d
commit
ad9c89b9fb
3 changed files with 41 additions and 147 deletions
151
src/Table.cpp
151
src/Table.cpp
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@ -63,7 +63,6 @@ Table::Table ()
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, mDashedUnderline (false)
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, mTablePadding (0)
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, mTableWidth (0)
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, mSuppressWS (false)
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{
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}
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@ -180,50 +179,23 @@ void Table::addCell (const int row, const int col, const std::string& data)
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{
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unsigned int length = 0;
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if (mSuppressWS)
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if (mCommify.find (col) != mCommify.end ())
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mData.add (row, col, commify (data));
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else
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mData.add (row, col, data);
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// For multi-line cells, find the longest line.
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if (data.find ("\n") != std::string::npos)
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{
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std::string data2;
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if (mCommify.find (col) != mCommify.end ())
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data2 = commify (data);
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else
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data2 = data;
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clean (data2);
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// For multi-line cells, find the longest line.
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if (data2.find ("\n") != std::string::npos)
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{
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length = 0;
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std::vector <std::string> lines;
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split (lines, data2, "\n");
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for (unsigned int i = 0; i < lines.size (); ++i)
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if (lines[i].length () > length)
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length = lines[i].length ();
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}
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else
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length = data2.length ();
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mData.add (row, col, data2);
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length = 0;
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std::vector <std::string> lines;
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split (lines, data, "\n");
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for (unsigned int i = 0; i < lines.size (); ++i)
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if (lines[i].length () > length)
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length = lines[i].length ();
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}
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else
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{
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if (mCommify.find (col) != mCommify.end ())
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mData.add (row, col, commify (data));
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else
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mData.add (row, col, data);
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// For multi-line cells, find the longest line.
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if (data.find ("\n") != std::string::npos)
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{
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length = 0;
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std::vector <std::string> lines;
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split (lines, data, "\n");
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for (unsigned int i = 0; i < lines.size (); ++i)
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if (lines[i].length () > length)
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length = lines[i].length ();
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}
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else
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length = data.length ();
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}
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length = data.length ();
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// Automatically maintain max width.
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mMaxDataWidth[col] = max (mMaxDataWidth[col], (int)length);
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@ -485,28 +457,22 @@ const std::string Table::formatHeader (
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std::string data = mColumns[col];
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Color c = getHeaderUnderline (col);
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int gap = width - strippedLength (data);
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std::string pad = "";
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std::string intraPad = "";
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std::string preJust = "";
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std::string attrOn = "";
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std::string attrOff = "";
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std::string pad = std::string (padding, ' ');
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// TODO When the following is replaced by:
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// std::string postJust = std::string (gap, ' ');
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// two unit tests fail.
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std::string postJust = "";
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for (int i = 0; i < padding; ++i)
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pad += " ";
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// Place the value within the available space - justify.
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int gap = width - data.length ();
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for (int i = 0; i < gap; ++i)
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postJust += " ";
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std::string intraPad = "";
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if (col < (signed) mColumns.size () - 1)
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for (int i = 0; i < getIntraPadding (); ++i)
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intraPad += " ";
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intraPad = std::string (getIntraPadding (), ' ');
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return c.colorize (pad + preJust + data + postJust + pad) + intraPad;
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return c.colorize (pad + data + postJust + pad) + intraPad;
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}
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////////////////////////////////////////////////////////////////////////////////
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@ -533,22 +499,13 @@ const std::string Table::formatHeaderDashedUnderline (
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Color c = getHeaderUnderline (col);
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std::string data = "";
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for (int i = 0; i < width; ++i)
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data += '-';
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std::string pad = "";
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std::string data = std::string (width, '-');
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std::string pad = std::string (padding, ' ');
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std::string intraPad = "";
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std::string attrOn = "";
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std::string attrOff = "";
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for (int i = 0; i < padding; ++i)
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pad += " ";
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// Place the value within the available space - justify.
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if (col < (signed) mColumns.size () - 1)
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for (int i = 0; i < getIntraPadding (); ++i)
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intraPad += " ";
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intraPad = std::string (getIntraPadding (), ' ');
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return c.colorize (pad + data + pad) + intraPad;
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}
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@ -569,15 +526,11 @@ void Table::formatCell (
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just justification = getJustification (row, col);
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std::string data = getCell (row, col);
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std::string pad = "";
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std::string pad = std::string (padding, ' ');
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std::string intraPad = "";
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for (int i = 0; i < padding; ++i)
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pad += " ";
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if (col < (signed) mColumns.size () - 1)
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for (int i = 0; i < getIntraPadding (); ++i)
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intraPad += " ";
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intraPad = std::string (getIntraPadding (), ' ');
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// Break the text into chunks of width characters.
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std::string preJust;
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@ -593,39 +546,26 @@ void Table::formatCell (
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postJust = "";
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if (justification == left)
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for (int i = 0; i < gap; ++i)
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postJust += " ";
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postJust = std::string (gap, ' ');
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else if (justification == right)
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for (int i = 0; i < gap; ++i)
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preJust += " ";
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preJust = std::string (gap, ' ');
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else if (justification == center)
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{
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for (int i = 0; i < gap / 2; ++i)
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preJust += " ";
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for (size_t i = 0; i < gap - preJust.length (); ++i)
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postJust += " ";
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preJust = std::string (gap / 2, ' ');
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postJust = std::string (gap - preJust.length (), ' ');
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}
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lines.push_back (c.colorize (pad + preJust + chunks[chunk] + postJust + pad + intraPad));
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}
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// The blank is used to vertically pad cells that have blank lines.
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pad = "";
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for (int i = 0; i < width; ++i)
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pad += " ";
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pad = std::string (width, ' ');
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blank = c.colorize (pad + intraPad);
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}
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////////////////////////////////////////////////////////////////////////////////
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void Table::suppressWS ()
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{
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mSuppressWS = true;
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}
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////////////////////////////////////////////////////////////////////////////////
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void Table::setDateFormat (const std::string& dateFormat)
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{
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@ -880,31 +820,6 @@ void Table::sort (std::vector <int>& order)
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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void Table::clean (std::string& value)
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{
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size_t start = 0;
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size_t pos;
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while ((pos = value.find ('\t', start)) != std::string::npos)
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{
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value.replace (pos, 1, " ");
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start = pos; // Not pos + 1, because we have a destructive operation, and
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// this is ultimately safer.
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}
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while ((pos = value.find ('\r', start)) != std::string::npos)
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{
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value.replace (pos, 1, " ");
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start = pos;
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}
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while ((pos = value.find ('\n', start)) != std::string::npos)
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{
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value.replace (pos, 1, " ");
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start = pos;
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}
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}
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////////////////////////////////////////////////////////////////////////////////
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const std::string Table::render (int maxrows /* = 0 */, int maxlines /* = 0 */)
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{
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