class Traverse(unittest.TestCase): def setUp(self): self.lex = SvelLexer() self.lex.build() self.lexer = self.lex.get_lexer() self.parser = svelYacc.getParser() def test_hello(self): ast = self.parser.parse(Testsuite.hello_world, lexer=self.lexer) code = SvelTraverse(ast).get_code_and_errors() print code def test_comments(self): ast = self.parser.parse(Testsuite.comments, lexer =self.lexer) code = SvelTraverse(ast).get_code_and_errors() print code def test_empty(self): ast = self.parser.parse(Testsuite.empty, lexer = self.lexer) code = SvelTraverse(ast).get_code_and_errors() print code def test_assignments(self): ast = self.parser.parse(Testsuite.assignments, lexer = self.lexer) code = SvelTraverse(ast).get_code_and_errors() print code def test_boolean(self): ast = self.parser.parse(Testsuite.expressions_boolean, lexer = self.lexer) code = SvelTraverse(ast).get_code_and_errors() print code
def setUp(self): self.lex = SvelLexer() self.lex.build() self.lexer = self.lex.get_lexer() self.parser = svelYacc.getParser()
class Traverse(unittest.TestCase): def setUp(self): self.lex = SvelLexer() self.lex.build() self.lexer = self.lex.get_lexer() self.parser = svelYacc.getParser() def test_hello(self): ast = self.parser.parse(Testsuite.hello_world, lexer=self.lexer) code = SvelTraverse(ast).get_code_and_errors() print code def test_comments(self): ast = self.parser.parse(Testsuite.comments, lexer =self.lexer) code = SvelTraverse(ast).get_code_and_errors() print code def test_empty(self): ast = self.parser.parse(Testsuite.empty, lexer = self.lexer) code = SvelTraverse(ast).get_code_and_errors() print code def test_assignments(self): ast = self.parser.parse(Testsuite.assignments, lexer = self.lexer) code = SvelTraverse(ast).get_code_and_errors() print code def test_boolean(self): ast = self.parser.parse(Testsuite.expressions_boolean, lexer = self.lexer) code = SvelTraverse(ast).get_code_and_errors() print code def test_relational(self): ast = self.parser.parse(Testsuite.expressions_relational, lexer = self.lexer) code = SvelTraverse(ast).get_code_and_errors() print code def test_math(self): ast = self.parser.parse(Testsuite.expressions_math, lexer = self.lexer) code = SvelTraverse(ast).get_code_and_errors() print code def test_while(self): ast = self.parser.parse(Testsuite.loops_while, lexer = self.lexer) code = SvelTraverse(ast).get_code_and_errors() print code def test_for(self): ast = self.parser.parse(Testsuite.loops_for, lexer = self.lexer) code = SvelTraverse(ast).get_code_and_errors() print code def test_flow(self): ast = self.parser.parse(Testsuite.flow, lexer = self.lexer) code = SvelTraverse(ast).get_code_and_errors() print code def test_array(self): ast = self.parser.parse(Testsuite.array, lexer = self.lexer) code = SvelTraverse(ast).get_code_and_errors() print code def test_files(self): ast = self.parser.parse(Testsuite.files, lexer = self.lexer) code = SvelTraverse(ast).get_code_and_errors() print code def test_input_output(self): ast = self.parser.parse(Testsuite.input_output, lexer = self.lexer) code = SvelTraverse(ast).get_code_and_errors() print code
# get to lib for svelLex file
import os, sys
lib_path = os.path.join('../lib')
sys.path.append(lib_path)
# get to ply
lib_path = os.path.join('../lib/ply-3.4')
sys.path.append(lib_path)
# import SvelLexer class
from svelLex import SvelLexer
# instantiate and build lexer
svel = SvelLexer()
svel.build()
# provide some data
data = '''
//tests Hello.java
boolean helloWorldTest() {
file helloFile = "../Hello.java";
funct helloMain = {main, (j_String[]), helloFile};
input in = ();
output out = "Hello World!";
return helloMain.assert(in, out);
}
main() {
if(helloWorldTest()) {
print "Hello World passed!";
import os, sys
lib_path = os.path.join('../lib')
sys.path.append(lib_path)
# get to ply
lib_path = os.path.join('../lib/ply-3.4')
sys.path.append(lib_path)
# import lexer class
from svelLex import SvelLexer
# import parser
import svelYacc
# get and build lexer
svel = SvelLexer()
svel.build()
# get parser
parser = svelYacc.getParser()
# provide some data
data = '''
//tests Hello.java
boolean helloWorldTest() {
file helloFile = "../Hello.java";
funct helloMain = {__main__, (j_String[]), helloFile};
input in = ();
output out = "Hello World!";
return helloMain.assert(in, out);
# set the name of the compiled code file
# e.g. if they compiled helloworld.svel, they'll get helloworld.py
output_filename = input_filename + ".py"
if(os.path.isfile(output_filename)):
sys.exit("Error: Refusing to overwrite " + output_filename + "\nPlease either delete it or rename your source file")
# try to open source code
try:
source_code = open(input_file).read()
except IOERROR, e:
sys.exit(e)
# get and build lexer; errorlog=lex.NullLogger() removes PLY warnings
svel = SvelLexer()
svel.build(errorlog=lex.NullLogger())
# get parser; errorlog=yacc.NullLogger() removes PLY warnings
parser = svelYacc.getParser(errorlog=yacc.NullLogger())
# parse the data into an abstract syntax tree
ast = parser.parse(source_code, lexer=svel.get_lexer())
# walk the tree and get the compiled code
if verbose == None:
compiled_code, errors = SvelTraverse(ast).get_code_and_errors()
else:
print ast
compiled_code, errors = SvelTraverse(ast, verbose=True).get_code_and_errors()
# if arg3 = -d
class Yacc(unittest.TestCase): def setUp(self): self.lex = SvelLexer() self.lex.build() self.lexer = self.lex.get_lexer() self.parser = svelYacc.getParser() def test_hello(self): code = self.parser.parse(Testsuite.hello_world) print code def test_comments(self): code = self.parser.parse(Testsuite.comments) print code def test_empty(self): code = self.parser.parse(Testsuite.empty) print code def test_assingments(self): code = self.parser.parse(Testsuite.assignments) print code def test_boolean(self): code = self.parser.parse(Testsuite.expressions_boolean) print code def test_relational(self): code = self.parser.parse(Testsuite.expressions_relational) print code def test_math(self): code = self.parser.parse(Testsuite.expressions_math) print code def test_while(self): code = self.parser.parse(Testsuite.loops_while) print code def test_for(self): code = self.parser.parse(Testsuite.loops_for) print code def test_flow(self): code = self.parser.parse(Testsuite.flow) print code def test_array(self): code = self.parser.parse(Testsuite.array) print code def test_files(self): code = self.parser.parse(Testsuite.files) print code def test_input_output(self): code = self.parser.parse(Testsuite.input_output) print code
def p_empty(p):
'empty :'
pass
def p_error(p):
# we should throw compiler error in this case
if p == None:
print "Syntax error at last token."
else:
print "Syntax error around line number \n %d : %s " % (p.lineno, p.value)
if __name__ == '__main__':
# get and build lexer
svel = SvelLexer()
svel.build()
parser = getParser()
# loop to get user input
while True:
# print prompt and gather input
try:
line = raw_input("Enter a string to parse\n")
# if Ctrl-D, exit
except EOFError:
break
# otherwise, tokenize the string