@@ -0,0 +1,3 @@ | |||||
[submodule "tests/test_nearley/nearley"] | |||||
path = tests/test_nearley/nearley | |||||
url = https://github.com/kasbah/nearley |
@@ -169,51 +169,6 @@ def create_code_for_nearley_grammar(g, start, builtin_path, folder_path): | |||||
return ''.join(emit_code) | return ''.join(emit_code) | ||||
def test(): | |||||
css_example_grammar = """ | |||||
# http://www.w3.org/TR/css3-color/#colorunits | |||||
@builtin "whitespace.ne" | |||||
@builtin "number.ne" | |||||
@builtin "postprocessors.ne" | |||||
csscolor -> "#" hexdigit hexdigit hexdigit hexdigit hexdigit hexdigit {% | |||||
function(d) { | |||||
return { | |||||
"r": parseInt(d[1]+d[2], 16), | |||||
"g": parseInt(d[3]+d[4], 16), | |||||
"b": parseInt(d[5]+d[6], 16), | |||||
} | |||||
} | |||||
%} | |||||
| "#" hexdigit hexdigit hexdigit {% | |||||
function(d) { | |||||
return { | |||||
"r": parseInt(d[1]+d[1], 16), | |||||
"g": parseInt(d[2]+d[2], 16), | |||||
"b": parseInt(d[3]+d[3], 16), | |||||
} | |||||
} | |||||
%} | |||||
| "rgb" _ "(" _ colnum _ "," _ colnum _ "," _ colnum _ ")" {% $({"r": 4, "g": 8, "b": 12}) %} | |||||
| "hsl" _ "(" _ colnum _ "," _ colnum _ "," _ colnum _ ")" {% $({"h": 4, "s": 8, "l": 12}) %} | |||||
| "rgba" _ "(" _ colnum _ "," _ colnum _ "," _ colnum _ "," _ decimal _ ")" {% $({"r": 4, "g": 8, "b": 12, "a": 16}) %} | |||||
| "hsla" _ "(" _ colnum _ "," _ colnum _ "," _ colnum _ "," _ decimal _ ")" {% $({"h": 4, "s": 8, "l": 12, "a": 16}) %} | |||||
hexdigit -> [a-fA-F0-9] | |||||
colnum -> unsigned_int {% id %} | percentage {% | |||||
function(d) {return Math.floor(d[0]*255); } | |||||
%} | |||||
""" | |||||
code = create_code_for_nearley_grammar(css_example_grammar, 'csscolor', '/home/erez/nearley/builtin', './') | |||||
d = {} | |||||
exec (code, d) | |||||
parse = d['parse'] | |||||
print(parse('#a199ff')) | |||||
print(parse('rgb(255, 70%, 3)')) | |||||
def main(): | def main(): | ||||
if len(sys.argv) < 3: | if len(sys.argv) < 3: | ||||
print("Reads Nearley grammar (with js functions) outputs an equivalent lark parser.") | print("Reads Nearley grammar (with js functions) outputs an equivalent lark parser.") | ||||
@@ -228,4 +183,3 @@ def main(): | |||||
if __name__ == '__main__': | if __name__ == '__main__': | ||||
main() | main() | ||||
# test() |
@@ -5,6 +5,8 @@ import logging | |||||
from .test_trees import TestTrees | from .test_trees import TestTrees | ||||
from .test_nearley.test_nearley import TestNearley | |||||
# from .test_selectors import TestSelectors | # from .test_selectors import TestSelectors | ||||
# from .test_grammars import TestPythonG, TestConfigG | # from .test_grammars import TestPythonG, TestConfigG | ||||
@@ -0,0 +1 @@ | |||||
Subproject commit 0abb6e5feef2f4ebf80d5a0891c1ad709011b1c7 |
@@ -0,0 +1,70 @@ | |||||
from __future__ import absolute_import | |||||
import unittest | |||||
import logging | |||||
import os | |||||
import sys | |||||
logging.basicConfig(level=logging.INFO) | |||||
from lark.tools.nearley import create_code_for_nearley_grammar | |||||
NEARLEY_PATH = os.path.abspath(os.path.join(os.path.dirname(__file__), 'nearley')) | |||||
BUILTIN_PATH = os.path.join(NEARLEY_PATH, 'builtin') | |||||
class TestNearley(unittest.TestCase): | |||||
def test_css(self): | |||||
css_example_grammar = """ | |||||
# http://www.w3.org/TR/css3-color/#colorunits | |||||
@builtin "whitespace.ne" | |||||
@builtin "number.ne" | |||||
@builtin "postprocessors.ne" | |||||
csscolor -> "#" hexdigit hexdigit hexdigit hexdigit hexdigit hexdigit {% | |||||
function(d) { | |||||
return { | |||||
"r": parseInt(d[1]+d[2], 16), | |||||
"g": parseInt(d[3]+d[4], 16), | |||||
"b": parseInt(d[5]+d[6], 16), | |||||
} | |||||
} | |||||
%} | |||||
| "#" hexdigit hexdigit hexdigit {% | |||||
function(d) { | |||||
return { | |||||
"r": parseInt(d[1]+d[1], 16), | |||||
"g": parseInt(d[2]+d[2], 16), | |||||
"b": parseInt(d[3]+d[3], 16), | |||||
} | |||||
} | |||||
%} | |||||
| "rgb" _ "(" _ colnum _ "," _ colnum _ "," _ colnum _ ")" {% $({"r": 4, "g": 8, "b": 12}) %} | |||||
| "hsl" _ "(" _ colnum _ "," _ colnum _ "," _ colnum _ ")" {% $({"h": 4, "s": 8, "l": 12}) %} | |||||
| "rgba" _ "(" _ colnum _ "," _ colnum _ "," _ colnum _ "," _ decimal _ ")" {% $({"r": 4, "g": 8, "b": 12, "a": 16}) %} | |||||
| "hsla" _ "(" _ colnum _ "," _ colnum _ "," _ colnum _ "," _ decimal _ ")" {% $({"h": 4, "s": 8, "l": 12, "a": 16}) %} | |||||
hexdigit -> [a-fA-F0-9] | |||||
colnum -> unsigned_int {% id %} | percentage {% | |||||
function(d) {return Math.floor(d[0]*255); } | |||||
%} | |||||
""" | |||||
code = create_code_for_nearley_grammar(css_example_grammar, 'csscolor', BUILTIN_PATH, './') | |||||
d = {} | |||||
exec (code, d) | |||||
parse = d['parse'] | |||||
c = parse('#a199ff') | |||||
assert c['r'] == 161 | |||||
assert c['g'] == 153 | |||||
assert c['b'] == 255 | |||||
c = parse('rgb(255, 70%, 3)') | |||||
assert c['r'] == 255 | |||||
assert c['g'] == 178 | |||||
assert c['b'] == 3 | |||||
if __name__ == '__main__': | |||||
unittest.main() |