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//===-- MICmdArgValFile.cpp -------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//++
// File: MICmdArgValFile.cpp
//
// Overview: CMICmdArgValFile implementation.
//
// Environment: Compilers: Visual C++ 12.
// gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1
// Libraries: See MIReadmetxt.
//
// Copyright: None.
//--
// In-house headers:
#include "MICmdArgValFile.h"
#include "MICmdArgContext.h"
//++ ------------------------------------------------------------------------------------
// Details: CMICmdArgValFile constructor.
// Type: Method.
// Args: None.
// Return: None.
// Throws: None.
//--
CMICmdArgValFile::CMICmdArgValFile(void)
{
}
//++ ------------------------------------------------------------------------------------
// 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(void)
{
}
//++ ------------------------------------------------------------------------------------
// 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 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 MIchar cSpace = ' ';
const MIint nPos = fileNamePath.find(cSpace);
if (nPos != (MIint)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_first_of("/") != std::string::npos);
const bool bHaveBckSlash = (vrFileNamePath.find_first_of("\\") != std::string::npos);
// Look for --someLongOption
MIint nPos = vrFileNamePath.find_first_of("--");
const bool bLong = (nPos == 0);
if (bLong)
return false;
// Look for -f type short parameters
nPos = vrFileNamePath.find_first_of("-");
const bool bShort = (nPos == 0);
if (bShort)
return false;
// Look for i1 i2 i3....
nPos = vrFileNamePath.find_first_of("i");
const bool bFoundI1 = ((nPos == 0) && (::isdigit(vrFileNamePath[1])));
if (bFoundI1)
return false;
const bool bValidChars = IsValidChars(vrFileNamePath);
if (bValidChars || bHavePosSlash || bHaveBckSlash)
return true;
return false;
}
//++ ------------------------------------------------------------------------------------
// 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
{
const MIchar *pPtr = const_cast<MIchar *>(vrText.c_str());
for (MIuint i = 0; i < vrText.length(); i++, pPtr++)
{
const MIchar c = *pPtr;
if (::isalnum((int)c) == 0)
{
if ((c != '.') && (c != '-') && (c != '_'))
return false;
}
}
return true;
}
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