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authorDan Sinclair <dsinclair@chromium.org>2017-01-18 12:47:24 -0500
committerChromium commit bot <commit-bot@chromium.org>2017-01-18 18:06:19 +0000
commit19c209de418a10f7d5c157cdda38e9308bfa5503 (patch)
tree5c5428d219f74cd02f8d36adc4e33c2e1b97f81a /xfa/fde/css/cfde_cssvaluelistparser.cpp
parentbe591066c781850caf13d2b7a7070c6da4eda467 (diff)
downloadpdfium-19c209de418a10f7d5c157cdda38e9308bfa5503.tar.xz
Split CFDE_CSSPrimitiveValue apart
This CL splits the CFDE_CSSPrimitiveValue class into individual classes per value type. This moves the numeric itypes out of the FDE_CSSPrimitiveType list and creates a new CFDE_CSSNumberType list. Change-Id: I6f55e9e3509de7ff1e82dcf018a1f1c472565e54 Reviewed-on: https://pdfium-review.googlesource.com/2250 Commit-Queue: dsinclair <dsinclair@chromium.org> Reviewed-by: Tom Sepez <tsepez@chromium.org>
Diffstat (limited to 'xfa/fde/css/cfde_cssvaluelistparser.cpp')
-rw-r--r--xfa/fde/css/cfde_cssvaluelistparser.cpp116
1 files changed, 116 insertions, 0 deletions
diff --git a/xfa/fde/css/cfde_cssvaluelistparser.cpp b/xfa/fde/css/cfde_cssvaluelistparser.cpp
new file mode 100644
index 0000000000..3c204b0d2b
--- /dev/null
+++ b/xfa/fde/css/cfde_cssvaluelistparser.cpp
@@ -0,0 +1,116 @@
+// Copyright 2017 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "xfa/fde/css/cfde_cssvaluelistparser.h"
+
+CFDE_CSSValueListParser::CFDE_CSSValueListParser(const FX_WCHAR* psz,
+ int32_t iLen,
+ FX_WCHAR separator)
+ : m_Separator(separator), m_pCur(psz), m_pEnd(psz + iLen) {
+ ASSERT(psz && iLen > 0);
+}
+
+bool CFDE_CSSValueListParser::NextValue(FDE_CSSPrimitiveType& eType,
+ const FX_WCHAR*& pStart,
+ int32_t& iLength) {
+ while (m_pCur < m_pEnd && (*m_pCur <= ' ' || *m_pCur == m_Separator)) {
+ ++m_pCur;
+ }
+ if (m_pCur >= m_pEnd) {
+ return false;
+ }
+ eType = FDE_CSSPrimitiveType::Unknown;
+ pStart = m_pCur;
+ iLength = 0;
+ FX_WCHAR wch = *m_pCur;
+ if (wch == '#') {
+ iLength = SkipTo(' ');
+ if (iLength == 4 || iLength == 7) {
+ eType = FDE_CSSPrimitiveType::RGB;
+ }
+ } else if ((wch >= '0' && wch <= '9') || wch == '.' || wch == '-' ||
+ wch == '+') {
+ while (m_pCur < m_pEnd && (*m_pCur > ' ' && *m_pCur != m_Separator)) {
+ ++m_pCur;
+ }
+ iLength = m_pCur - pStart;
+ if (iLength > 0) {
+ eType = FDE_CSSPrimitiveType::Number;
+ }
+ } else if (wch == '\"' || wch == '\'') {
+ pStart++;
+ iLength = SkipTo(wch) - 1;
+ m_pCur++;
+ eType = FDE_CSSPrimitiveType::String;
+ } else if (m_pEnd - m_pCur > 5 && m_pCur[3] == '(') {
+ if (FXSYS_wcsnicmp(L"url", m_pCur, 3) == 0) {
+ wch = m_pCur[4];
+ if (wch == '\"' || wch == '\'') {
+ pStart += 5;
+ iLength = SkipTo(wch) - 6;
+ m_pCur += 2;
+ } else {
+ pStart += 4;
+ iLength = SkipTo(')') - 4;
+ m_pCur++;
+ }
+ eType = FDE_CSSPrimitiveType::String;
+ } else if (FXSYS_wcsnicmp(L"rgb", m_pCur, 3) == 0) {
+ iLength = SkipTo(')') + 1;
+ m_pCur++;
+ eType = FDE_CSSPrimitiveType::RGB;
+ }
+ } else {
+ iLength = SkipTo(m_Separator, true, true);
+ eType = FDE_CSSPrimitiveType::String;
+ }
+ return m_pCur <= m_pEnd && iLength > 0;
+}
+int32_t CFDE_CSSValueListParser::SkipTo(FX_WCHAR wch,
+ bool bWSSeparator,
+ bool bBrContinue) {
+ const FX_WCHAR* pStart = m_pCur;
+ if (!bBrContinue) {
+ if (bWSSeparator) {
+ while ((++m_pCur < m_pEnd) && (*m_pCur != wch) && (*m_pCur > ' ')) {
+ continue;
+ }
+ } else {
+ while (++m_pCur < m_pEnd && *m_pCur != wch) {
+ continue;
+ }
+ }
+
+ } else {
+ int32_t iBracketCount = 0;
+ if (bWSSeparator) {
+ while ((m_pCur < m_pEnd) && (*m_pCur != wch) && (*m_pCur > ' ')) {
+ if (*m_pCur == '(') {
+ iBracketCount++;
+ } else if (*m_pCur == ')') {
+ iBracketCount--;
+ }
+ m_pCur++;
+ }
+ } else {
+ while (m_pCur < m_pEnd && *m_pCur != wch) {
+ if (*m_pCur == '(') {
+ iBracketCount++;
+ } else if (*m_pCur == ')') {
+ iBracketCount--;
+ }
+ m_pCur++;
+ }
+ }
+ while (iBracketCount > 0 && m_pCur < m_pEnd) {
+ if (*m_pCur == ')') {
+ iBracketCount--;
+ }
+ m_pCur++;
+ }
+ }
+ return m_pCur - pStart;
+}