CMake/Source/cmCommandArgumentParserHelp...

322 lines
8.4 KiB
C++
Raw Normal View History

/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
2005-06-08 18:41:05 +04:00
Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
2005-06-08 18:41:05 +04:00
This software is distributed WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the License for more information.
============================================================================*/
2005-06-08 18:41:05 +04:00
#include "cmCommandArgumentParserHelper.h"
#include "cmMakefile.h"
#include "cmOutputConverter.h"
#include "cmState.h"
#include "cmSystemTools.h"
2005-06-08 18:41:05 +04:00
#include "cmCommandArgumentLexer.h"
int cmCommandArgument_yyparse(yyscan_t yyscanner);
//
2005-06-08 18:41:05 +04:00
cmCommandArgumentParserHelper::cmCommandArgumentParserHelper()
{
this->WarnUninitialized = false;
2010-09-01 19:24:20 +04:00
this->CheckSystemVars = false;
2006-03-15 19:02:08 +03:00
this->FileLine = -1;
2016-06-27 23:44:16 +03:00
this->FileName = CM_NULLPTR;
this->RemoveEmpty = true;
2006-03-15 19:02:08 +03:00
this->EmptyVariable[0] = 0;
strcpy(this->DCURLYVariable, "${");
strcpy(this->RCURLYVariable, "}");
strcpy(this->ATVariable, "@");
2006-03-15 19:02:08 +03:00
strcpy(this->DOLLARVariable, "$");
strcpy(this->LCURLYVariable, "{");
strcpy(this->BSLASHVariable, "\\");
2006-03-15 19:02:08 +03:00
this->NoEscapeMode = false;
this->ReplaceAtSyntax = false;
2005-06-08 18:41:05 +04:00
}
cmCommandArgumentParserHelper::~cmCommandArgumentParserHelper()
{
this->CleanupParser();
}
void cmCommandArgumentParserHelper::SetLineFile(long line, const char* file)
{
2006-03-15 19:02:08 +03:00
this->FileLine = line;
this->FileName = file;
2005-06-08 18:41:05 +04:00
}
char* cmCommandArgumentParserHelper::AddString(const std::string& str)
2005-06-08 18:41:05 +04:00
{
if (str.empty()) {
2006-03-15 19:02:08 +03:00
return this->EmptyVariable;
}
char* stVal = new char[str.size() + 1];
strcpy(stVal, str.c_str());
2006-03-15 19:02:08 +03:00
this->Variables.push_back(stVal);
2005-06-14 23:49:30 +04:00
return stVal;
2005-06-08 18:41:05 +04:00
}
char* cmCommandArgumentParserHelper::ExpandSpecialVariable(const char* key,
2006-05-10 22:15:15 +04:00
const char* var)
2005-06-08 18:41:05 +04:00
{
if (!key) {
2005-06-08 18:41:05 +04:00
return this->ExpandVariable(var);
}
if (!var) {
return this->EmptyVariable;
}
if (strcmp(key, "ENV") == 0) {
char* ptr = getenv(var);
if (ptr) {
if (this->EscapeQuotes) {
return this->AddString(cmSystemTools::EscapeQuotes(ptr));
} else {
2005-06-08 18:41:05 +04:00
return ptr;
}
}
return this->EmptyVariable;
}
if (strcmp(key, "CACHE") == 0) {
if (const char* c =
this->Makefile->GetState()->GetInitializedCacheValue(var)) {
if (this->EscapeQuotes) {
return this->AddString(cmSystemTools::EscapeQuotes(c));
} else {
return this->AddString(c);
}
}
return this->EmptyVariable;
}
std::ostringstream e;
e << "Syntax $" << key << "{} is not supported. "
<< "Only ${}, $ENV{}, and $CACHE{} are allowed.";
this->SetError(e.str());
2016-06-27 23:44:16 +03:00
return CM_NULLPTR;
2005-06-08 18:41:05 +04:00
}
char* cmCommandArgumentParserHelper::ExpandVariable(const char* var)
2005-06-08 18:41:05 +04:00
{
if (!var) {
2016-06-27 23:44:16 +03:00
return CM_NULLPTR;
}
if (this->FileLine >= 0 && strcmp(var, "CMAKE_CURRENT_LIST_LINE") == 0) {
std::ostringstream ostr;
2006-03-15 19:02:08 +03:00
ostr << this->FileLine;
return this->AddString(ostr.str());
}
2006-03-15 19:02:08 +03:00
const char* value = this->Makefile->GetDefinition(var);
if (!value && !this->RemoveEmpty) {
// check to see if we need to print a warning
// if strict mode is on and the variable has
// not been "cleared"/initialized with a set(foo ) call
if (this->WarnUninitialized && !this->Makefile->VariableInitialized(var)) {
if (this->CheckSystemVars ||
2010-09-16 19:49:58 +04:00
cmSystemTools::IsSubDirectory(this->FileName,
this->Makefile->GetHomeDirectory()) ||
cmSystemTools::IsSubDirectory(
this->FileName, this->Makefile->GetHomeOutputDirectory())) {
std::ostringstream msg;
2010-12-08 00:38:25 +03:00
msg << "uninitialized variable \'" << var << "\'";
this->Makefile->IssueMessage(cmake::AUTHOR_WARNING, msg.str());
}
}
2016-06-27 23:44:16 +03:00
return CM_NULLPTR;
}
if (this->EscapeQuotes && value) {
return this->AddString(cmSystemTools::EscapeQuotes(value));
}
return this->AddString(value ? value : "");
2005-06-08 18:41:05 +04:00
}
char* cmCommandArgumentParserHelper::ExpandVariableForAt(const char* var)
{
if (this->ReplaceAtSyntax) {
// try to expand the variable
char* ret = this->ExpandVariable(var);
// if the return was 0 and we want to replace empty strings
// then return an empty string
if (!ret && this->RemoveEmpty) {
return this->AddString("");
}
// if the ret was not 0, then return it
if (ret) {
return ret;
}
}
// at this point we want to put it back because of one of these cases:
// - this->ReplaceAtSyntax is false
// - this->ReplaceAtSyntax is true, but this->RemoveEmpty is false,
// and the variable was not defined
std::string ref = "@";
ref += var;
ref += "@";
return this->AddString(ref);
}
2005-06-13 18:11:44 +04:00
char* cmCommandArgumentParserHelper::CombineUnions(char* in1, char* in2)
2005-06-08 18:41:05 +04:00
{
if (!in1) {
2005-06-13 18:11:44 +04:00
return in2;
} else if (!in2) {
2005-06-13 18:11:44 +04:00
return in1;
}
size_t len = strlen(in1) + strlen(in2) + 1;
char* out = new char[len];
2005-06-13 18:11:44 +04:00
strcpy(out, in1);
strcat(out, in2);
2006-03-15 19:02:08 +03:00
this->Variables.push_back(out);
2005-06-14 23:49:30 +04:00
return out;
2005-06-08 18:41:05 +04:00
}
void cmCommandArgumentParserHelper::AllocateParserType(
cmCommandArgumentParserHelper::ParserType* pt, const char* str, int len)
2005-06-08 18:41:05 +04:00
{
2016-06-27 23:44:16 +03:00
pt->str = CM_NULLPTR;
if (len == 0) {
2006-07-26 19:46:22 +04:00
len = static_cast<int>(strlen(str));
}
if (len == 0) {
2005-06-08 18:41:05 +04:00
return;
}
pt->str = new char[len + 1];
2005-06-08 18:41:05 +04:00
strncpy(pt->str, str, len);
pt->str[len] = 0;
2006-03-15 19:02:08 +03:00
this->Variables.push_back(pt->str);
2005-06-08 18:41:05 +04:00
}
bool cmCommandArgumentParserHelper::HandleEscapeSymbol(
cmCommandArgumentParserHelper::ParserType* pt, char symbol)
{
switch (symbol) {
case '\\':
case '"':
case ' ':
case '#':
case '(':
case ')':
case '$':
case '@':
case '^':
this->AllocateParserType(pt, &symbol, 1);
break;
case ';':
this->AllocateParserType(pt, "\\;", 2);
break;
case 't':
this->AllocateParserType(pt, "\t", 1);
break;
case 'n':
this->AllocateParserType(pt, "\n", 1);
break;
case 'r':
this->AllocateParserType(pt, "\r", 1);
break;
case '0':
this->AllocateParserType(pt, "\0", 1);
break;
default: {
std::ostringstream e;
e << "Invalid escape sequence \\" << symbol;
this->SetError(e.str());
}
return false;
}
return true;
}
void cmCommandArgument_SetupEscapes(yyscan_t yyscanner, bool noEscapes);
2005-06-08 18:41:05 +04:00
int cmCommandArgumentParserHelper::ParseString(const char* str, int verb)
{
if (!str) {
2005-06-08 18:41:05 +04:00
return 0;
}
2005-06-08 18:41:05 +04:00
this->Verbose = verb;
this->InputBuffer = str;
this->InputBufferPos = 0;
this->CurrentLine = 0;
2006-03-15 19:02:08 +03:00
this->Result = "";
2005-06-08 18:41:05 +04:00
yyscan_t yyscanner;
cmCommandArgument_yylex_init(&yyscanner);
cmCommandArgument_yyset_extra(this, yyscanner);
cmCommandArgument_SetupEscapes(yyscanner, this->NoEscapeMode);
2005-06-08 18:41:05 +04:00
int res = cmCommandArgument_yyparse(yyscanner);
cmCommandArgument_yylex_destroy(yyscanner);
if (res != 0) {
2005-06-08 18:41:05 +04:00
return 0;
}
2005-06-08 18:41:05 +04:00
this->CleanupParser();
if (Verbose) {
std::cerr << "Expanding [" << str << "] produced: [" << this->Result << "]"
<< std::endl;
}
2005-06-08 18:41:05 +04:00
return 1;
}
void cmCommandArgumentParserHelper::CleanupParser()
{
2005-06-14 23:49:30 +04:00
std::vector<char*>::iterator sit;
for (sit = this->Variables.begin(); sit != this->Variables.end(); ++sit) {
delete[] * sit;
}
2006-03-15 19:02:08 +03:00
this->Variables.erase(this->Variables.begin(), this->Variables.end());
2005-06-08 18:41:05 +04:00
}
int cmCommandArgumentParserHelper::LexInput(char* buf, int maxlen)
{
if (maxlen < 1) {
2005-06-08 18:41:05 +04:00
return 0;
}
if (this->InputBufferPos < this->InputBuffer.size()) {
buf[0] = this->InputBuffer[this->InputBufferPos++];
if (buf[0] == '\n') {
this->CurrentLine++;
2005-06-08 18:41:05 +04:00
}
return (1);
} else {
2005-06-08 18:41:05 +04:00
buf[0] = '\n';
return (0);
}
2005-06-08 18:41:05 +04:00
}
2005-06-14 23:49:30 +04:00
2005-06-08 18:41:05 +04:00
void cmCommandArgumentParserHelper::Error(const char* str)
{
unsigned long pos = static_cast<unsigned long>(this->InputBufferPos);
std::ostringstream ostr;
2005-06-13 18:00:59 +04:00
ostr << str << " (" << pos << ")";
this->SetError(ostr.str());
2005-06-08 18:41:05 +04:00
}
void cmCommandArgumentParserHelper::SetMakefile(const cmMakefile* mf)
{
2006-03-15 19:02:08 +03:00
this->Makefile = mf;
this->WarnUninitialized = mf->GetCMakeInstance()->GetWarnUninitialized();
2010-09-01 19:24:20 +04:00
this->CheckSystemVars = mf->GetCMakeInstance()->GetCheckSystemVars();
2005-06-08 18:41:05 +04:00
}
void cmCommandArgumentParserHelper::SetResult(const char* value)
{
if (!value) {
2006-03-15 19:02:08 +03:00
this->Result = "";
2005-06-08 18:41:05 +04:00
return;
}
2006-03-15 19:02:08 +03:00
this->Result = value;
2005-06-08 18:41:05 +04:00
}
void cmCommandArgumentParserHelper::SetError(std::string const& msg)
{
// Keep only the first error.
if (this->ErrorString.empty()) {
this->ErrorString = msg;
}
}