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656 lines
20 KiB
656 lines
20 KiB
/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
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file Copyright.txt or https://cmake.org/licensing for details. */
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#include "cmOutputConverter.h"
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#include "cmAlgorithms.h"
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#include "cmSystemTools.h"
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#include <algorithm>
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#include <assert.h>
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#include <ctype.h>
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#include <set>
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#include <sstream>
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cmOutputConverter::cmOutputConverter(cmState::Snapshot snapshot)
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: StateSnapshot(snapshot)
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, LinkScriptShell(false)
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{
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assert(this->StateSnapshot.IsValid());
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}
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std::string cmOutputConverter::ConvertToOutputForExisting(
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const std::string& remote, OutputFormat format) const
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{
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// If this is a windows shell, the result has a space, and the path
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// already exists, we can use a short-path to reference it without a
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// space.
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if (this->GetState()->UseWindowsShell() &&
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remote.find(' ') != std::string::npos &&
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cmSystemTools::FileExists(remote.c_str())) {
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std::string tmp;
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if (cmSystemTools::GetShortPath(remote, tmp)) {
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return this->ConvertToOutputFormat(tmp, format);
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}
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}
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// Otherwise, perform standard conversion.
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return this->ConvertToOutputFormat(remote, format);
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}
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std::string cmOutputConverter::ConvertToOutputFormat(const std::string& source,
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OutputFormat output) const
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{
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std::string result = source;
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// Convert it to an output path.
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if (output == SHELL || output == WATCOMQUOTE) {
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result = this->ConvertDirectorySeparatorsForShell(source);
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result = this->EscapeForShell(result, true, false, output == WATCOMQUOTE);
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} else if (output == RESPONSE) {
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result = this->EscapeForShell(result, false, false, false);
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}
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return result;
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}
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std::string cmOutputConverter::ConvertDirectorySeparatorsForShell(
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const std::string& source) const
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{
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std::string result = source;
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// For the MSYS shell convert drive letters to posix paths, so
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// that c:/some/path becomes /c/some/path. This is needed to
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// avoid problems with the shell path translation.
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if (this->GetState()->UseMSYSShell() && !this->LinkScriptShell) {
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if (result.size() > 2 && result[1] == ':') {
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result[1] = result[0];
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result[0] = '/';
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}
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}
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if (this->GetState()->UseWindowsShell()) {
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std::replace(result.begin(), result.end(), '/', '\\');
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}
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return result;
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}
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static bool cmOutputConverterNotAbove(const char* a, const char* b)
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{
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return (cmSystemTools::ComparePath(a, b) ||
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cmSystemTools::IsSubDirectory(a, b));
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}
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std::string cmOutputConverter::ConvertToRelativePath(
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const std::vector<std::string>& local, const std::string& in_remote,
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bool force) const
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{
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std::string local_path = cmSystemTools::JoinPath(local);
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return force ? this->ForceToRelativePath(local_path, in_remote)
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: this->ConvertToRelativePath(local_path, in_remote);
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}
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std::string cmOutputConverter::ConvertToRelativePath(
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std::string const& local_path, std::string const& remote_path) const
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{
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// The paths should never be quoted.
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assert(local_path[0] != '\"');
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assert(remote_path[0] != '\"');
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// The local path should never have a trailing slash.
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assert(local_path.empty() || local_path[local_path.size() - 1] != '/');
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// If the path is already relative then just return the path.
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if (!cmSystemTools::FileIsFullPath(remote_path.c_str())) {
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return remote_path;
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}
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// Skip conversion if the path and local are not both in the source
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// or both in the binary tree.
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if (!((cmOutputConverterNotAbove(
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local_path.c_str(),
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this->StateSnapshot.GetDirectory().GetRelativePathTopBinary()) &&
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cmOutputConverterNotAbove(
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remote_path.c_str(),
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this->StateSnapshot.GetDirectory().GetRelativePathTopBinary())) ||
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(cmOutputConverterNotAbove(
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local_path.c_str(),
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this->StateSnapshot.GetDirectory().GetRelativePathTopSource()) &&
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cmOutputConverterNotAbove(
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remote_path.c_str(),
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this->StateSnapshot.GetDirectory().GetRelativePathTopSource())))) {
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return remote_path;
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}
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return this->ForceToRelativePath(local_path, remote_path);
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}
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std::string cmOutputConverter::ForceToRelativePath(
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std::string const& local_path, std::string const& remote_path)
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{
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// The paths should never be quoted.
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assert(local_path[0] != '\"');
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assert(remote_path[0] != '\"');
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// The local path should never have a trailing slash.
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assert(local_path.empty() || local_path[local_path.size() - 1] != '/');
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// If the path is already relative then just return the path.
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if (!cmSystemTools::FileIsFullPath(remote_path.c_str())) {
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return remote_path;
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}
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// Identify the longest shared path component between the remote
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// path and the local path.
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std::vector<std::string> local;
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cmSystemTools::SplitPath(local_path, local);
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std::vector<std::string> remote;
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cmSystemTools::SplitPath(remote_path, remote);
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unsigned int common = 0;
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while (common < remote.size() && common < local.size() &&
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cmSystemTools::ComparePath(remote[common], local[common])) {
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++common;
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}
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// If no part of the path is in common then return the full path.
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if (common == 0) {
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return remote_path;
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}
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// If the entire path is in common then just return a ".".
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if (common == remote.size() && common == local.size()) {
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return ".";
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}
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// If the entire path is in common except for a trailing slash then
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// just return a "./".
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if (common + 1 == remote.size() && remote[common].empty() &&
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common == local.size()) {
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return "./";
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}
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// Construct the relative path.
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std::string relative;
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// First add enough ../ to get up to the level of the shared portion
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// of the path. Leave off the trailing slash. Note that the last
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// component of local will never be empty because local should never
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// have a trailing slash.
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for (unsigned int i = common; i < local.size(); ++i) {
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relative += "..";
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if (i < local.size() - 1) {
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relative += "/";
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}
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}
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// Now add the portion of the destination path that is not included
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// in the shared portion of the path. Add a slash the first time
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// only if there was already something in the path. If there was a
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// trailing slash in the input then the last iteration of the loop
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// will add a slash followed by an empty string which will preserve
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// the trailing slash in the output.
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if (!relative.empty() && !remote.empty()) {
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relative += "/";
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}
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relative += cmJoin(cmMakeRange(remote).advance(common), "/");
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// Finally return the path.
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return relative;
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}
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static bool cmOutputConverterIsShellOperator(const std::string& str)
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{
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static std::set<std::string> shellOperators;
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if (shellOperators.empty()) {
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shellOperators.insert("<");
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shellOperators.insert(">");
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shellOperators.insert("<<");
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shellOperators.insert(">>");
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shellOperators.insert("|");
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shellOperators.insert("||");
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shellOperators.insert("&&");
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shellOperators.insert("&>");
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shellOperators.insert("1>");
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shellOperators.insert("2>");
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shellOperators.insert("2>&1");
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shellOperators.insert("1>&2");
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}
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return shellOperators.count(str) > 0;
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}
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std::string cmOutputConverter::EscapeForShell(const std::string& str,
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bool makeVars, bool forEcho,
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bool useWatcomQuote) const
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{
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// Do not escape shell operators.
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if (cmOutputConverterIsShellOperator(str)) {
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return str;
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}
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// Compute the flags for the target shell environment.
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int flags = 0;
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if (this->GetState()->UseWindowsVSIDE()) {
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flags |= Shell_Flag_VSIDE;
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} else if (!this->LinkScriptShell) {
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flags |= Shell_Flag_Make;
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}
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if (makeVars) {
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flags |= Shell_Flag_AllowMakeVariables;
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}
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if (forEcho) {
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flags |= Shell_Flag_EchoWindows;
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}
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if (useWatcomQuote) {
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flags |= Shell_Flag_WatcomQuote;
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}
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if (this->GetState()->UseWatcomWMake()) {
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flags |= Shell_Flag_WatcomWMake;
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}
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if (this->GetState()->UseMinGWMake()) {
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flags |= Shell_Flag_MinGWMake;
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}
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if (this->GetState()->UseNMake()) {
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flags |= Shell_Flag_NMake;
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}
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return this->GetState()->UseWindowsShell()
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? Shell_GetArgumentForWindows(str.c_str(), flags)
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: Shell_GetArgumentForUnix(str.c_str(), flags);
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}
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std::string cmOutputConverter::EscapeForCMake(const std::string& str)
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{
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// Always double-quote the argument to take care of most escapes.
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std::string result = "\"";
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for (const char* c = str.c_str(); *c; ++c) {
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if (*c == '"') {
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// Escape the double quote to avoid ending the argument.
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result += "\\\"";
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} else if (*c == '$') {
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// Escape the dollar to avoid expanding variables.
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result += "\\$";
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} else if (*c == '\\') {
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// Escape the backslash to avoid other escapes.
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result += "\\\\";
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} else {
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// Other characters will be parsed correctly.
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result += *c;
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}
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}
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result += "\"";
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return result;
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}
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std::string cmOutputConverter::EscapeWindowsShellArgument(const char* arg,
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int shell_flags)
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{
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return Shell_GetArgumentForWindows(arg, shell_flags);
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}
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cmOutputConverter::FortranFormat cmOutputConverter::GetFortranFormat(
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const char* value)
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{
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FortranFormat format = FortranFormatNone;
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if (value && *value) {
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std::vector<std::string> fmt;
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cmSystemTools::ExpandListArgument(value, fmt);
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for (std::vector<std::string>::iterator fi = fmt.begin(); fi != fmt.end();
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++fi) {
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if (*fi == "FIXED") {
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format = FortranFormatFixed;
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}
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if (*fi == "FREE") {
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format = FortranFormatFree;
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}
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}
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}
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return format;
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}
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void cmOutputConverter::SetLinkScriptShell(bool linkScriptShell)
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{
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this->LinkScriptShell = linkScriptShell;
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}
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cmState* cmOutputConverter::GetState() const
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{
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return this->StateSnapshot.GetState();
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}
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/*
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Notes:
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Make variable replacements open a can of worms. Sometimes they should
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be quoted and sometimes not. Sometimes their replacement values are
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already quoted.
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VS variables cause problems. In order to pass the referenced value
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with spaces the reference must be quoted. If the variable value ends
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in a backslash then it will escape the ending quote! In order to make
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the ending backslash appear we need this:
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"$(InputDir)\"
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However if there is not a trailing backslash then this will put a
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quote in the value so we need:
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"$(InputDir)"
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Make variable references are platform specific so we should probably
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just NOT quote them and let the listfile author deal with it.
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*/
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/*
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TODO: For windows echo:
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To display a pipe (|) or redirection character (< or >) when using the
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echo command, use a caret character immediately before the pipe or
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redirection character (for example, ^>, ^<, or ^| ). If you need to
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use the caret character itself (^), use two in a row (^^).
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*/
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int cmOutputConverter::Shell__CharIsWhitespace(char c)
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{
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return ((c == ' ') || (c == '\t'));
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}
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int cmOutputConverter::Shell__CharNeedsQuotesOnUnix(char c)
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{
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return ((c == '\'') || (c == '`') || (c == ';') || (c == '#') ||
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(c == '&') || (c == '$') || (c == '(') || (c == ')') || (c == '~') ||
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(c == '<') || (c == '>') || (c == '|') || (c == '*') || (c == '^') ||
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(c == '\\'));
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}
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int cmOutputConverter::Shell__CharNeedsQuotesOnWindows(char c)
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{
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return ((c == '\'') || (c == '#') || (c == '&') || (c == '<') ||
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(c == '>') || (c == '|') || (c == '^'));
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}
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int cmOutputConverter::Shell__CharNeedsQuotes(char c, int isUnix, int flags)
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{
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/* On Windows the built-in command shell echo never needs quotes. */
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if (!isUnix && (flags & Shell_Flag_EchoWindows)) {
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return 0;
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}
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/* On all platforms quotes are needed to preserve whitespace. */
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if (Shell__CharIsWhitespace(c)) {
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return 1;
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}
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if (isUnix) {
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/* On UNIX several special characters need quotes to preserve them. */
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if (Shell__CharNeedsQuotesOnUnix(c)) {
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return 1;
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}
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} else {
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/* On Windows several special characters need quotes to preserve them. */
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if (Shell__CharNeedsQuotesOnWindows(c)) {
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return 1;
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}
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}
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return 0;
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}
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int cmOutputConverter::Shell__CharIsMakeVariableName(char c)
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{
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return c && (c == '_' || isalpha(((int)c)));
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}
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const char* cmOutputConverter::Shell__SkipMakeVariables(const char* c)
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{
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while (*c == '$' && *(c + 1) == '(') {
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const char* skip = c + 2;
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while (Shell__CharIsMakeVariableName(*skip)) {
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++skip;
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}
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if (*skip == ')') {
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c = skip + 1;
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} else {
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break;
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}
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}
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return c;
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}
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/*
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Allowing make variable replacements opens a can of worms. Sometimes
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they should be quoted and sometimes not. Sometimes their replacement
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values are already quoted or contain escapes.
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Some Visual Studio variables cause problems. In order to pass the
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referenced value with spaces the reference must be quoted. If the
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variable value ends in a backslash then it will escape the ending
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quote! In order to make the ending backslash appear we need this:
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"$(InputDir)\"
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However if there is not a trailing backslash then this will put a
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quote in the value so we need:
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"$(InputDir)"
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This macro decides whether we quote an argument just because it
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contains a make variable reference. This should be replaced with a
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flag later when we understand applications of this better.
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*/
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#define KWSYS_SYSTEM_SHELL_QUOTE_MAKE_VARIABLES 0
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int cmOutputConverter::Shell__ArgumentNeedsQuotes(const char* in, int isUnix,
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int flags)
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{
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/* The empty string needs quotes. */
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if (!*in) {
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return 1;
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}
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/* Scan the string for characters that require quoting. */
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{
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const char* c;
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for (c = in; *c; ++c) {
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/* Look for $(MAKEVAR) syntax if requested. */
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if (flags & Shell_Flag_AllowMakeVariables) {
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#if KWSYS_SYSTEM_SHELL_QUOTE_MAKE_VARIABLES
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const char* skip = Shell__SkipMakeVariables(c);
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if (skip != c) {
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/* We need to quote make variable references to preserve the
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string with contents substituted in its place. */
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return 1;
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}
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#else
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/* Skip over the make variable references if any are present. */
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c = Shell__SkipMakeVariables(c);
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/* Stop if we have reached the end of the string. */
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if (!*c) {
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break;
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}
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#endif
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}
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/* Check whether this character needs quotes. */
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if (Shell__CharNeedsQuotes(*c, isUnix, flags)) {
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return 1;
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}
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}
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}
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/* On Windows some single character arguments need quotes. */
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if (!isUnix && *in && !*(in + 1)) {
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char c = *in;
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if ((c == '?') || (c == '&') || (c == '^') || (c == '|') || (c == '#')) {
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return 1;
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}
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}
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return 0;
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}
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std::string cmOutputConverter::Shell__GetArgument(const char* in, int isUnix,
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int flags)
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{
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std::ostringstream out;
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/* String iterator. */
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const char* c;
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/* Keep track of how many backslashes have been encountered in a row. */
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int windows_backslashes = 0;
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/* Whether the argument must be quoted. */
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int needQuotes = Shell__ArgumentNeedsQuotes(in, isUnix, flags);
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if (needQuotes) {
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/* Add the opening quote for this argument. */
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if (flags & Shell_Flag_WatcomQuote) {
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if (isUnix) {
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out << '"';
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}
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out << '\'';
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} else {
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out << '"';
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}
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}
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/* Scan the string for characters that require escaping or quoting. */
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for (c = in; *c; ++c) {
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/* Look for $(MAKEVAR) syntax if requested. */
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if (flags & Shell_Flag_AllowMakeVariables) {
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const char* skip = Shell__SkipMakeVariables(c);
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if (skip != c) {
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/* Copy to the end of the make variable references. */
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while (c != skip) {
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out << *c++;
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}
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/* The make variable reference eliminates any escaping needed
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for preceding backslashes. */
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windows_backslashes = 0;
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/* Stop if we have reached the end of the string. */
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if (!*c) {
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break;
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}
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}
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}
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/* Check whether this character needs escaping for the shell. */
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if (isUnix) {
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/* On Unix a few special characters need escaping even inside a
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|
quoted argument. */
|
|
if (*c == '\\' || *c == '"' || *c == '`' || *c == '$') {
|
|
/* This character needs a backslash to escape it. */
|
|
out << '\\';
|
|
}
|
|
} else if (flags & Shell_Flag_EchoWindows) {
|
|
/* On Windows the built-in command shell echo never needs escaping. */
|
|
} else {
|
|
/* On Windows only backslashes and double-quotes need escaping. */
|
|
if (*c == '\\') {
|
|
/* Found a backslash. It may need to be escaped later. */
|
|
++windows_backslashes;
|
|
} else if (*c == '"') {
|
|
/* Found a double-quote. Escape all immediately preceding
|
|
backslashes. */
|
|
while (windows_backslashes > 0) {
|
|
--windows_backslashes;
|
|
out << '\\';
|
|
}
|
|
|
|
/* Add the backslash to escape the double-quote. */
|
|
out << '\\';
|
|
} else {
|
|
/* We encountered a normal character. This eliminates any
|
|
escaping needed for preceding backslashes. */
|
|
windows_backslashes = 0;
|
|
}
|
|
}
|
|
|
|
/* Check whether this character needs escaping for a make tool. */
|
|
if (*c == '$') {
|
|
if (flags & Shell_Flag_Make) {
|
|
/* In Makefiles a dollar is written $$. The make tool will
|
|
replace it with just $ before passing it to the shell. */
|
|
out << "$$";
|
|
} else if (flags & Shell_Flag_VSIDE) {
|
|
/* In a VS IDE a dollar is written "$". If this is written in
|
|
an un-quoted argument it starts a quoted segment, inserts
|
|
the $ and ends the segment. If it is written in a quoted
|
|
argument it ends quoting, inserts the $ and restarts
|
|
quoting. Either way the $ is isolated from surrounding
|
|
text to avoid looking like a variable reference. */
|
|
out << "\"$\"";
|
|
} else {
|
|
/* Otherwise a dollar is written just $. */
|
|
out << '$';
|
|
}
|
|
} else if (*c == '#') {
|
|
if ((flags & Shell_Flag_Make) && (flags & Shell_Flag_WatcomWMake)) {
|
|
/* In Watcom WMake makefiles a pound is written $#. The make
|
|
tool will replace it with just # before passing it to the
|
|
shell. */
|
|
out << "$#";
|
|
} else {
|
|
/* Otherwise a pound is written just #. */
|
|
out << '#';
|
|
}
|
|
} else if (*c == '%') {
|
|
if ((flags & Shell_Flag_VSIDE) ||
|
|
((flags & Shell_Flag_Make) &&
|
|
((flags & Shell_Flag_MinGWMake) || (flags & Shell_Flag_NMake)))) {
|
|
/* In the VS IDE, NMake, or MinGW make a percent is written %%. */
|
|
out << "%%";
|
|
} else {
|
|
/* Otherwise a percent is written just %. */
|
|
out << '%';
|
|
}
|
|
} else if (*c == ';') {
|
|
if (flags & Shell_Flag_VSIDE) {
|
|
/* In a VS IDE a semicolon is written ";". If this is written
|
|
in an un-quoted argument it starts a quoted segment,
|
|
inserts the ; and ends the segment. If it is written in a
|
|
quoted argument it ends quoting, inserts the ; and restarts
|
|
quoting. Either way the ; is isolated. */
|
|
out << "\";\"";
|
|
} else {
|
|
/* Otherwise a semicolon is written just ;. */
|
|
out << ';';
|
|
}
|
|
} else {
|
|
/* Store this character. */
|
|
out << *c;
|
|
}
|
|
}
|
|
|
|
if (needQuotes) {
|
|
/* Add enough backslashes to escape any trailing ones. */
|
|
while (windows_backslashes > 0) {
|
|
--windows_backslashes;
|
|
out << '\\';
|
|
}
|
|
|
|
/* Add the closing quote for this argument. */
|
|
if (flags & Shell_Flag_WatcomQuote) {
|
|
out << '\'';
|
|
if (isUnix) {
|
|
out << '"';
|
|
}
|
|
} else {
|
|
out << '"';
|
|
}
|
|
}
|
|
|
|
return out.str();
|
|
}
|
|
|
|
std::string cmOutputConverter::Shell_GetArgumentForWindows(const char* in,
|
|
int flags)
|
|
{
|
|
return Shell__GetArgument(in, 0, flags);
|
|
}
|
|
|
|
std::string cmOutputConverter::Shell_GetArgumentForUnix(const char* in,
|
|
int flags)
|
|
{
|
|
return Shell__GetArgument(in, 1, flags);
|
|
}
|