Merge pull request #14 from patxoca/issue-11

Fix issue 11

3 files changed, 56 insertions, 1 deletions

diff --git a/tests/test_parser.py b/tests/test_parser.py
index 3153415..b6ab468 100644
--- a/tests/test_parser.py
+++ b/tests/test_parser.py
@@ -918,6 +918,10 @@ def test_lookup(instruction, cycles, parser_table):
     assert entry["cycles"] == cycles, "Failed: {} expected '{}' != found '{}'".format(instruction, cycles, entry["cycles"])
 
 
+##########################################################################
+# _extract_mnemonic                                                      #
+##########################################################################
+
 @pytest.mark.parametrize("line,operator", (
     ("foo: LD A, 1 ; load accumulator", "LD"),
     ("foo: CALL 0xABCD", "CALL"),
@@ -935,3 +939,22 @@ def test_extract_mnemonic(line, operator):
 
 def test_extract_mnemonic_normalizes_operator():
     assert Parser._extract_mnemonic("call 0xabcd") == "CALL"
+
+
+##########################################################################
+# _remove_label                                                          #
+##########################################################################
+
+@pytest.mark.parametrize("line,expected", (
+    ("foo: ld A, 1 ; load accumulator", "ld A, 1 ; load accumulator"),
+    ("foo: CALL 0xABCD", "CALL 0xABCD"),
+    ("foo: EI", "EI"),
+    ("LD A, 1 ; load accumulator", "LD A, 1 ; load accumulator"),
+    ("call 0xABCE", "call 0xABCE"),
+    ("EI", "EI"),
+    ("foo: ; some label", None),
+    ("foo:", None),
+    ("; some comment", None),
+))
+def test_remove_label(line, expected):
+    assert Parser._remove_label(line) == expected
diff --git a/tests/test_z80count.py b/tests/test_z80count.py
new file mode 100644
index 0000000..85a9084
--- /dev/null
+++ b/tests/test_z80count.py
@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+
+import pytest
+
+from z80count.z80count import Parser
+from z80count.z80count import z80count
+
+
+@pytest.mark.parametrize("line,expected", (
+    ("PLY_InterruptionOn: call PLY_Init",
+     "PLY_InterruptionOn: call PLY_Init ; [17]\n"),
+    ("$PLY_Interruption.On: call PLY_Init",
+     "$PLY_Interruption.On: call PLY_Init ; [17]\n"),
+    ("PLY_ReplayFrequency:\tld de,0",
+     "PLY_ReplayFrequency:\tld de,0 ; [10]\n"),
+
+))
+def test_issue_11(line, expected):
+    parser = Parser()
+    output, _ = z80count(line, parser, total=0, subt=False,
+                         no_update=True, column=1, use_tabs=False,
+                         tab_width=4, debug=False)
+    assert output == expected
diff --git a/z80count/z80count.py b/z80count/z80count.py
index a5b1fce..abfa48f 100644
--- a/z80count/z80count.py
+++ b/z80count/z80count.py
@@ -186,13 +186,14 @@ class Parser(object):
     """Simple parser based on a table of regexes."""
 
     # [label:] OPERATOR [OPERANDS] [; comment]
-    _LINE_RE = re.compile(r"^([\w]+:)?\s*(?P<operator>\w+)(\s+.*)?$")
+    _LINE_RE = re.compile(r"^([$.\w]+:)?\s*(?P<operator>\w+)(?P<rest>\s+.*)?$")
 
     def __init__(self):
         self._table = self._load_table()
 
     def lookup(self, line):
         mnemo = self._extract_mnemonic(line)
+        line = self._remove_label(line)
         if mnemo is None or mnemo not in self._table:
             return None
         for entry in self._table[mnemo]:
@@ -226,6 +227,14 @@ class Parser(object):
             return match.group("operator").upper()
         return None
 
+    @classmethod
+    def _remove_label(cls, line):
+        match = cls._LINE_RE.match(line)
+        if match:
+            rest = match.group("rest") or ""
+            return match.group("operator") + rest
+        return None
+
     @staticmethod
     def _init_entry(entry):
         entry["cregex"] = re.compile(r"^\s*" + entry["regex"] + r"\s*(;.*)?$", re.I)