Interactive mode, bug with looping while parsing some incorrect input corrected.`

devel
Justyna Att Ilczuk 2012-11-04 16:21:51 +01:00
parent e124120121
commit 8dc5802c2b
9 changed files with 93 additions and 31 deletions

18
Sencha-lang/ASTNode.cpp Normal file
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@ -0,0 +1,18 @@
/*
* ASTNode.cpp
*
* Created on: Nov 4, 2012
* Author: attero
*/
#include "ASTNode.h"
ASTNode::ASTNode() {
// TODO Auto-generated constructor stub
}
ASTNode::~ASTNode() {
// TODO Auto-generated destructor stub
}

17
Sencha-lang/ASTNode.h Normal file
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@ -0,0 +1,17 @@
/*
* ASTNode.h
*
* Created on: Nov 4, 2012
* Author: attero
*/
#ifndef ASTNODE_H_
#define ASTNODE_H_
class ASTNode {
public:
ASTNode();
virtual ~ASTNode();
};
#endif /* ASTNODE_H_ */

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@ -1,5 +1,6 @@
main.d: ../main.cpp ../Token.h ../Lexer.h ../Parser.h \ main.d: ../main.cpp ../Token.h ../Lexer.h ../Parser.h \
../Tests/TestLexer.h ../Tests/TestSuite.h ../Tests/minunit.h ../Tests/TestLexer.h ../Tests/TestSuite.h ../Tests/minunit.h \
../Tests/../Lexer.h
../Token.h: ../Token.h:
@ -12,3 +13,5 @@ main.d: ../main.cpp ../Token.h ../Lexer.h ../Parser.h \
../Tests/TestSuite.h: ../Tests/TestSuite.h:
../Tests/minunit.h: ../Tests/minunit.h:
../Tests/../Lexer.h:

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@ -55,34 +55,39 @@ void Parser::interpret()
{ {
expr(); expr();
report(" :=\n"); report(" :=\n");
} }
if(accept(";")) if(accept(";"))
{ {
report("Variable definition\n"); report("Variable definition\n");
continue; continue;
} }
expect("("); if(expect("("))
int argc = 0; {
while(true) int argc = 0;
{ while(tok_value!= ")")
argc++; {
is_type(); argc++;
report("function argument: " + tok_value + "\n"); is_type();
read_next(); report("function argument: " + tok_value + "\n");
if(peek(")")) read_next();
{ if(peek(")"))
break; {
} break;
expect(","); }
expect(",");
}
expect(")");
if(!accept(";"))
{
report("function body:\n");
statement();
}
} }
expect(")"); else expect(";");
if(!accept(";"))
{
report("function body:\n");
statement();
}
} }
else { else {
@ -179,7 +184,7 @@ void Parser::statement()
else else
{ {
expr(); expr();
while(!expect(";")) read_next(); while(!expect(";") && tok_value != "") read_next();
} }
} }

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@ -23,18 +23,14 @@ void test_lexer()
tokens = lexer.parse_line(test_line2); tokens = lexer.parse_line(test_line2);
/*for(int i=0; i< tokens.size(); i++)
{
cout << tokens[i].get_value() << " type: " << tokens[i].get_type() << endl;
}*/
} }
void test_parser() void test_parser()
{ {
vector<string> lines; vector<string> lines;
lines.push_back("def i; bulb; i + 3; string banan = \"kartofel\"; banan = \"banan\"; string kaboom(num how_many_times) { def z; }"); lines.push_back("def i; bulb; i + 3; string banan = \"kartofel\"; banan = \"banan\"; string kaboom(num how_many_times) { def z; }");
lines.push_back("{ i like bananas; string hello = \"hello\"; hello(); }"); lines.push_back("num pun");
lines.push_back("def how_many_trees = 1; how_many_trees + 3 == 2; num cut_tree(num how_many) {return how_many -1;}"); lines.push_back("def how_many_trees = 1; how_many_trees + 3 == 2; num cut_tree(num how_many) {return how_many -1}");
Lexer lexer; Lexer lexer;
vector<Token> tokens; vector<Token> tokens;
for(int i=0; i<lines.size(); i++) for(int i=0; i<lines.size(); i++)
@ -49,15 +45,38 @@ void test_parser()
cout << parser.error_message << endl; cout << parser.error_message << endl;
} }
} }
void interactive()
{
Lexer lexer;
vector<Token> tokens;
string input = "start";
while(input != "end\n")
{
cout << "I'm waiting for your input, Master!\n";
getline(cin, input);
tokens = lexer.parse_line(input);
Parser parser(tokens);
parser.interpret();
cout << parser.report_message;
cout << parser.error_message << endl;
}
}
int main() int main()
{ {
cout << "Hello world!" << endl; cout << "Hello world!" << endl;
TestLexer test_l; TestLexer test_l;
test_l.run_tests(); //test_l.run_tests();
//test_parser(); //test_parser();
//test_lexer(); //test_lexer();
interactive();
return 0; return 0;
} }