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diff --git a/Build/source/texk/dvisvgm/dvisvgm-1.0.3/src/PageSize.cpp b/Build/source/texk/dvisvgm/dvisvgm-1.0.3/src/PageSize.cpp
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+/*************************************************************************
+** PageSize.cpp **
+** **
+** This file is part of dvisvgm -- the DVI to SVG converter **
+** Copyright (C) 2005-2010 Martin Gieseking <martin.gieseking@uos.de> **
+** **
+** This program is free software; you can redistribute it and/or **
+** modify it under the terms of the GNU General Public License as **
+** published by the Free Software Foundation; either version 3 of **
+** the License, or (at your option) any later version. **
+** **
+** This program is distributed in the hope that it will be useful, but **
+** WITHOUT ANY WARRANTY; without even the implied warranty of **
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the **
+** GNU General Public License for more details. **
+** **
+** You should have received a copy of the GNU General Public License **
+** along with this program; if not, see <http://www.gnu.org/licenses/>. **
+*************************************************************************/
+
+#include <algorithm>
+#include <cctype>
+#include <cmath>
+#include <sstream>
+#include "PageSize.h"
+
+using namespace std;
+
+// make sure tolower is a function (and not a macro)
+// so that 'transform' can be applied
+static int my_tolower (int c) {
+ return tolower(c);
+}
+
+
+/** Computes width and height of ISO/DIN An in millimeters.
+ * @param[in] n the A level (e.g. n=4 => DIN A4)
+ * @param[out] width contains the page width when function returns
+ * @param[out] height contains the page height when function returns */
+static void computeASize (int n, double &width, double &height) {
+ double sqrt2 = sqrt(2.0);
+ height = floor(1189.0/pow(sqrt2, n)+0.5);
+ width = floor(height/sqrt2+0.5);
+}
+
+
+/** Computes width and height of ISO/DIN Bn in millimeters.
+ * @param[in] n the B level (e.g. n=4 => DIN B4)
+ * @param[out] width contains the page width when function returns
+ * @param[out] height contains the page height when function returns */
+static void computeBSize (int n, double &width, double &height) {
+ double w, h;
+ computeASize(n, width, height);
+ computeASize(n-1, w, h);
+ width = floor(sqrt(width * w)+0.5);
+ height = floor(sqrt(height * h)+0.5);
+}
+
+
+/** Computes width and height of ISO/DIN Cn in millimeters.
+ * @param[in] n the C level (e.g. n=4 => DIN C4)
+ * @param[out] width contains the page width when function returns
+ * @param[out] height contains the page height when function returns */
+static void computeCSize (int n, double &width, double &height) {
+ double w, h;
+ computeASize(n, width, height);
+ computeBSize(n, w, h);
+ width = floor(sqrt(width * w)+0.5);
+ height = floor(sqrt(height * h)+0.5);
+}
+
+
+/** Computes width and height of ISO/DIN Dn in millimeters.
+ * @param[in] n the D level (e.g. n=4 => DIN D4)
+ * @param[out] width contains the page width when function returns
+ * @param[out] height contains the page height when function returns */
+static void computeDSize (int n, double &width, double &height) {
+ double w, h;
+ computeASize(n, width, height);
+ computeBSize(n+1, w, h);
+ width = floor(sqrt(width * w)+0.5);
+ height = floor(sqrt(height * h)+0.5);
+}
+
+
+/** Constructs a PageSize object of given size.
+ * @param[in] name specifies the page size, e.g. "A4" or "letter" */
+PageSize::PageSize (string name) : width(0), height(0) {
+ resize(name);
+}
+
+
+void PageSize::resize (double w, double h) {
+ width = w;
+ height = h;
+}
+
+void PageSize::resize (string name) {
+ if (name.length() < 2)
+ throw PageSizeException("unknown page format: "+name);
+
+ transform(name.begin(), name.end(), name.begin(), my_tolower);
+ // extract optional suffix
+ size_t pos = name.rfind("-");
+ bool landscape = false;
+ if (pos != string::npos) {
+ string suffix = name.substr(pos);
+ name = name.substr(0, pos);
+ if (suffix == "-l" || suffix == "-landscape")
+ landscape = true;
+ else if (suffix != "-p" && suffix != "-portrait")
+ throw PageSizeException("invalid page format suffix: " + suffix);
+ }
+
+ if (name == "invoice") {
+ width = 140;
+ height = 216;
+ }
+ else if (name == "executive") {
+ width = 184;
+ height = 267;
+ }
+ else if (name == "legal") {
+ width = 216;
+ height = 356;
+ }
+ else if (name == "letter") {
+ width = 216;
+ height = 279;
+ }
+ else if (name == "ledger") {
+ width = 279;
+ height = 432;
+ }
+ else if (isdigit(name[1]) && name.length() < 5) { // limit length of number to prevent arithmetic errors
+ istringstream iss(name.substr(1));
+ int n;
+ iss >> n;
+ switch (name[0]) {
+ case 'a' : computeASize(n, width, height); break;
+ case 'b' : computeBSize(n, width, height); break;
+ case 'c' : computeCSize(n, width, height); break;
+ case 'd' : computeDSize(n, width, height); break;
+ default : throw PageSizeException("invalid page format: "+name);
+ }
+ }
+ if (width == 0 || height == 0)
+ throw PageSizeException("unknown page format: "+name);
+ if (landscape)
+ swap(width, height);
+
+ const double ptpmm = 72.27/25.4; // TeX points per millimeter (72.27pt = 1in = 25.4mm)
+ width *= ptpmm;
+ height *= ptpmm;
+}
+