1 files changed, 145 insertions, 0 deletions
diff --git a/starmath/source/mathmlattr.cxx b/starmath/source/mathmlattr.cxx
new file mode 100644
index 000000000..5e3f09df9
--- /dev/null
+++ b/starmath/source/mathmlattr.cxx
@@ -0,0 +1,145 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include "mathmlattr.hxx"
+
+#include <unordered_map>
+
+static sal_Int32 ParseMathMLUnsignedNumber(const OUString &rStr, Fraction& rUN)
+{
+    auto nLen = rStr.getLength();
+    sal_Int32 nDecimalPoint = -1;
+    sal_Int32 nIdx;
+    for (nIdx = 0; nIdx < nLen; nIdx++)
+    {
+        auto cD = rStr[nIdx];
+        if (cD == u'.')
+        {
+            if (nDecimalPoint >= 0)
+                return -1;
+            nDecimalPoint = nIdx;
+            continue;
+        }
+        if (cD < u'0' || u'9' < cD)
+            break;
+    }
+    if (nIdx == 0 || (nIdx == 1 && nDecimalPoint == 0))
+        return -1;
+
+    rUN = Fraction(rStr.copy(0, nIdx).toDouble());
+
+    return nIdx;
+}
+
+static sal_Int32 ParseMathMLNumber(const OUString &rStr, Fraction& rN)
+{
+    if (rStr.isEmpty())
+        return -1;
+    bool bNegative = (rStr[0] == '-');
+    sal_Int32 nOffset = bNegative ? 1 : 0;
+    auto nIdx = ParseMathMLUnsignedNumber(rStr.copy(nOffset), rN);
+    if (nIdx <= 0 || !rN.IsValid())
+        return -1;
+    if (bNegative)
+        rN *= -1;
+    return nOffset + nIdx;
+}
+
+sal_Int32 ParseMathMLAttributeLengthValue(const OUString &rStr, MathMLAttributeLengthValue& rV)
+{
+    auto nIdx = ParseMathMLNumber(rStr, rV.aNumber);
+    if (nIdx <= 0)
+        return -1;
+    OUString sRest = rStr.copy(nIdx);
+    if (sRest.isEmpty())
+    {
+        rV.eUnit = MathMLLengthUnit::None;
+        return nIdx;
+    }
+    if (sRest.startsWith("em"))
+    {
+        rV.eUnit = MathMLLengthUnit::Em;
+        return nIdx + 2;
+    }
+    if (sRest.startsWith("ex"))
+    {
+        rV.eUnit = MathMLLengthUnit::Ex;
+        return nIdx + 2;
+    }
+    if (sRest.startsWith("px"))
+    {
+        rV.eUnit = MathMLLengthUnit::Px;
+        return nIdx + 2;
+    }
+    if (sRest.startsWith("in"))
+    {
+        rV.eUnit = MathMLLengthUnit::In;
+        return nIdx + 2;
+    }
+    if (sRest.startsWith("cm"))
+    {
+        rV.eUnit = MathMLLengthUnit::Cm;
+        return nIdx + 2;
+    }
+    if (sRest.startsWith("mm"))
+    {
+        rV.eUnit = MathMLLengthUnit::Mm;
+        return nIdx + 2;
+    }
+    if (sRest.startsWith("pt"))
+    {
+        rV.eUnit = MathMLLengthUnit::Pt;
+        return nIdx + 2;
+    }
+    if (sRest.startsWith("pc"))
+    {
+        rV.eUnit = MathMLLengthUnit::Pc;
+        return nIdx + 2;
+    }
+    if (sRest[0] == u'%')
+    {
+        rV.eUnit = MathMLLengthUnit::Percent;
+        return nIdx + 2;
+    }
+    return nIdx;
+}
+
+bool GetMathMLMathvariantValue(const OUString &rStr, MathMLMathvariantValue& rV)
+{
+    static const std::unordered_map<OUString, MathMLMathvariantValue> aMap{
+        {"normal", MathMLMathvariantValue::Normal},
+        {"bold", MathMLMathvariantValue::Bold},
+        {"italic", MathMLMathvariantValue::Italic},
+        {"bold-italic", MathMLMathvariantValue::BoldItalic},
+        {"double-struck", MathMLMathvariantValue::DoubleStruck},
+        {"bold-fraktur", MathMLMathvariantValue::BoldFraktur},
+        {"script", MathMLMathvariantValue::Script},
+        {"bold-script", MathMLMathvariantValue::BoldScript},
+        {"fraktur", MathMLMathvariantValue::Fraktur},
+        {"sans-serif", MathMLMathvariantValue::SansSerif},
+        {"bold-sans-serif", MathMLMathvariantValue::BoldSansSerif},
+        {"sans-serif-italic", MathMLMathvariantValue::SansSerifItalic},
+        {"sans-serif-bold-italic", MathMLMathvariantValue::SansSerifBoldItalic},
+        {"monospace", MathMLMathvariantValue::Monospace},
+        {"initial", MathMLMathvariantValue::Initial},
+        {"tailed", MathMLMathvariantValue::Tailed},
+        {"looped", MathMLMathvariantValue::Looped},
+        {"stretched", MathMLMathvariantValue::Stretched}
+    };
+
+    auto it = aMap.find(rStr);
+    if (it != aMap.end())
+    {
+        rV = it->second;
+        return true;
+    }
+    return false;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */