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//===-- 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;
}
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