1 files changed, 178 insertions, 0 deletions
diff --git a/contrib/llvm-project/lldb/tools/lldb-mi/MICmdArgValFile.cpp b/contrib/llvm-project/lldb/tools/lldb-mi/MICmdArgValFile.cpp
new file mode 100644
index 000000000000..7171b0fa8f18
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+++ b/contrib/llvm-project/lldb/tools/lldb-mi/MICmdArgValFile.cpp
@@ -0,0 +1,178 @@
+//===-- MICmdArgValFile.cpp -------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+// In-house headers:
+#include "MICmdArgValFile.h"
+#include "MICmdArgContext.h"
+
+//++
+// Details: CMICmdArgValFile constructor.
+// Type:    Method.
+// Args:    None.
+// Return:  None.
+// Throws:  None.
+//--
+CMICmdArgValFile::CMICmdArgValFile() {}
+
+//++
+// Details: CMICmdArgValFile constructor.
+// Type:    Method.
+// Args:    vrArgName       - (R) Argument's name to search by.
+//          vbMandatory     - (R) True = Yes must be present, false = optional
+//          argument.
+//          vbHandleByCmd   - (R) True = Command processes *this option, false =
+//          not handled.
+// Return:  None.
+// Throws:  None.
+//--
+CMICmdArgValFile::CMICmdArgValFile(const CMIUtilString &vrArgName,
+                                   const bool vbMandatory,
+                                   const bool vbHandleByCmd)
+    : CMICmdArgValBaseTemplate(vrArgName, vbMandatory, vbHandleByCmd) {}
+
+//++
+// Details: CMICmdArgValFile destructor.
+// Type:    Overridden.
+// Args:    None.
+// Return:  None.
+// Throws:  None.
+//--
+CMICmdArgValFile::~CMICmdArgValFile() {}
+
+//++
+// Details: Parse the command's argument options string and try to extract the
+// value *this
+//          argument is looking for.
+// Type:    Overridden.
+// Args:    vwArgContext    - (R) The command's argument options string.
+// Return:  MIstatus::success - Functional succeeded.
+//          MIstatus::failure - Functional failed.
+// Throws:  None.
+//--
+bool CMICmdArgValFile::Validate(CMICmdArgContext &vwArgContext) {
+  if (vwArgContext.IsEmpty())
+    return m_bMandatory ? MIstatus::failure : MIstatus::success;
+
+  // The GDB/MI spec suggests there is only parameter
+
+  if (vwArgContext.GetNumberArgsPresent() == 1) {
+    const CMIUtilString &rFile(vwArgContext.GetArgsLeftToParse());
+    if (IsFilePath(rFile)) {
+      m_bFound = true;
+      m_bValid = true;
+      m_argValue = rFile.Trim('"');
+      vwArgContext.RemoveArg(rFile);
+      return MIstatus::success;
+    } else
+      return MIstatus::failure;
+  }
+
+  // In reality there are more than one option,  if so the file option
+  // is the last one (don't handle that here - find the best looking one)
+  const CMIUtilString::VecString_t vecOptions(vwArgContext.GetArgs());
+  CMIUtilString::VecString_t::const_iterator it = vecOptions.begin();
+  while (it != vecOptions.end()) {
+    const CMIUtilString &rTxt(*it);
+    if (IsFilePath(rTxt)) {
+      m_bFound = true;
+
+      if (vwArgContext.RemoveArg(rTxt)) {
+        m_bValid = true;
+        m_argValue = rTxt.Trim('"');
+        return MIstatus::success;
+      } else
+        return MIstatus::success;
+    }
+
+    // Next
+    ++it;
+  }
+
+  return MIstatus::failure;
+}
+
+//++
+// Details: Given some text extract the file name path from it. If a space is
+// found in
+//          path done return the path surrounded in quotes.
+// Type:    Method.
+// Args:    vrTxt   - (R) The text to extract the file name path from.
+// Return:  CMIUtilString - File name and or path.
+// Throws:  None.
+//--
+CMIUtilString
+CMICmdArgValFile::GetFileNamePath(const CMIUtilString &vrTxt) const {
+  CMIUtilString fileNamePath(vrTxt);
+
+  // Look for a space in the path
+  const char cSpace = ' ';
+  const size_t nPos = fileNamePath.find(cSpace);
+  if (nPos != std::string::npos)
+    fileNamePath = CMIUtilString::Format("\"%s\"", fileNamePath.c_str());
+
+  return fileNamePath;
+}
+
+//++
+// Details: Examine the string and determine if it is a valid file name path.
+// Type:    Method.
+// Args:    vrFileNamePath  - (R) File's name and directory path.
+// Return:  bool -  True = yes valid file path, false = no.
+// Throws:  None.
+//--
+bool CMICmdArgValFile::IsFilePath(const CMIUtilString &vrFileNamePath) const {
+  if (vrFileNamePath.empty())
+    return false;
+
+  const bool bHavePosSlash = (vrFileNamePath.find('/') != std::string::npos);
+  const bool bHaveBckSlash = (vrFileNamePath.find('\\') != std::string::npos);
+
+  // Look for --someLongOption
+  size_t nPos = vrFileNamePath.find("--");
+  const bool bLong = (nPos == 0);
+  if (bLong)
+    return false;
+
+  // Look for -f type short parameters
+  nPos = vrFileNamePath.find('-');
+  const bool bShort = (nPos == 0);
+  if (bShort)
+    return false;
+
+  // Look for i1 i2 i3....
+  nPos = vrFileNamePath.find('i');
+  const bool bFoundI1 = ((nPos == 0) && (::isdigit(vrFileNamePath[1])));
+  if (bFoundI1)
+    return false;
+
+  const bool bValidChars = IsValidChars(vrFileNamePath);
+  return bValidChars || bHavePosSlash || bHaveBckSlash;
+}
+
+//++
+// Details: Determine if the path contains valid characters for a file path.
+// Letters can be
+//          either upper or lower case.
+// Type:    Method.
+// Args:    vrText  - (R) The text data to examine.
+// Return:  bool - True = yes valid, false = one or more chars is valid.
+// Throws:  None.
+//--
+bool CMICmdArgValFile::IsValidChars(const CMIUtilString &vrText) const {
+  static CMIUtilString s_strSpecialCharacters(".'\"`@#$%^&*()_+-={}[]| ");
+  const char *pPtr = vrText.c_str();
+  for (MIuint i = 0; i < vrText.length(); i++, pPtr++) {
+    const char c = *pPtr;
+    if (::isalnum((int)c) == 0) {
+      if (s_strSpecialCharacters.find(c) == CMIUtilString::npos)
+        return false;
+    }
+  }
+
+  return true;
+}