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Code Issues 33 Projects Packages Wiki Activity Actions

.ide Refactor MacroManager by extracting logic to UscFileParser.

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git-svn-id: svn://ultimatepp.org/upp/trunk@11091 f0d560ea-af0d-0410-9eb7-867de7ffcac7
This commit is contained in:
klugier 2017-05-15 21:21:13 +00:00
parent decfea7cdc
commit 4bb4685dd6
7 changed files with 271 additions and 243 deletions
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154
uppsrc/ide/UscFileParser.cpp Normal file
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@ -0,0 +1,154 @@
#include "ide.h"
#define METHOD_NAME "UscFileParser::" << UPP_FUNCTION_NAME << "(): "
UscFileParser::UscFileParser(const String& filePath)
: filePath(filePath)
{}
MacroList UscFileParser::Parse()
{
MacroList ret;
String fileContent = LoadFile(filePath);
if(fileContent.IsEmpty()) {
Logw() << METHOD_NAME << "Following file \"" << filePath << "\" doesn't exist or is empty.";
return ret;
}
try {
CParser parser(fileContent, filePath);
while (!parser.IsEof()) {
String comment = TrimLeft(String(parser.GetSpacePtr(), parser.GetPtr()));
if (!parser.IsId())
return ret;
const char* prototypeBegin = parser.GetPtr();
String id = parser.ReadId();
if(id.IsEqual("fn"))
ReadFunction(parser, comment, prototypeBegin, ret);
else
if(id.IsEqual("macro"))
ReadMacro(parser, comment, prototypeBegin, ret);
else
return ret;
}
}
catch (const CParser::Error& error) {
Logw() << METHOD_NAME << "Parsing file \"" << filePath << "\" failed with error: " << error << ".";
}
return ret;
}
void UscFileParser::ReadFunction(CParser& parser, const String& comment, const char* prototypeBegin, MacroList& list)
{
String fileName = parser.GetFileName();
MacroElement fn(MacroElement::Type::FUNCTION, fileName, parser.GetLine(), comment);
if(!parser.IsId()) {
FindNextElement(parser);
return;
}
fn.name = parser.ReadId();
if(!parser.Char('(')) {
FindNextElement(parser);
return;
}
fn.args = ReadArgs(parser);
FinishRead(parser, prototypeBegin, fn, list);
}
void UscFileParser::ReadMacro(CParser& parser, const String& comment, const char* prototypeBegin, MacroList& list)
{
String fileName = parser.GetFileName();
MacroElement macro(MacroElement::Type::MACRO, fileName, parser.GetLine(), comment);
if(!parser.IsString()) {
FindNextElement(parser);
return;
}
macro.name = String() << (parser.IsString() ? parser.ReadString() : "");
if(parser.Char(':')) {
if(!parser.IsString()) {
FindNextElement(parser);
return;
}
macro.name << " : " << (parser.IsString() ? parser.ReadString() : "");
}
if (!parser.IsChar('{'))
ReadKeyDesc(parser);
FinishRead(parser, prototypeBegin, macro, list);
}
void UscFileParser::FinishRead(CParser& parser, const char* prototypeBegin, MacroElement& element, MacroList& list)
{
const char* bodyBegin = parser.GetPtr();
element.prototype = String(prototypeBegin, bodyBegin);
if (!parser.Char('{')) {
FindNextElement(parser);
return;
}
Upp::SkipBlock(parser);
if(parser.GetSpacePtr() > bodyBegin)
element.code = String(bodyBegin, parser.GetSpacePtr());
list.Add(element);
}
void UscFileParser::FindNextElement(CParser& parser)
{
while(!parser.IsEof() && !parser.IsId("fn") && !parser.IsId("macro"))
parser.SkipTerm();
}
String UscFileParser::ReadArgs(CParser& parser)
{
int level = 1;
parser.Char('(');
String ret = "(";
while(level > 0 && !parser.IsEof()) {
if (parser.Char('('))
level++;
else
if (parser.Char(')'))
level--;
else
ret << parser.GetChar();
}
ret << ")";
return ret;
}
String UscFileParser::ReadKeyDesc(CParser& parser)
{
if(!parser.IsId())
return String();
String ret = parser.ReadId();
while(!parser.IsEof() && parser.Char('+')) {
if(parser.IsId())
ret << "+" << parser.ReadId();
else
if(parser.IsNumber())
ret << "+" << parser.ReadInt();
else
break;
}
return ret;
}