php dependency parser plugin

wakatime/languages/php.py

@@ -0,0 +1,66 @@
+# -*- coding: utf-8 -*-
+"""
+    wakatime.languages.php
+    ~~~~~~~~~~~~~~~~~~~~~~
+
+    Parse dependencies from PHP code.
+
+    :copyright: (c) 2014 Alan Hamlett.
+    :license: BSD, see LICENSE for more details.
+"""
+
+from . import TokenParser
+from ..compat import u
+
+
+class PhpParser(TokenParser):
+    state = None
+    parens = 0
+
+    def parse(self, tokens=[]):
+        if not tokens and not self.tokens:
+            self.tokens = self._extract_tokens()
+        for index, token, content in self.tokens:
+            self._process_token(token, content)
+        return self.dependencies
+
+    def _process_token(self, token, content):
+        if u(token).split('.')[-1] == 'Keyword':
+            self._process_keyword(token, content)
+        elif u(token) == 'Token.Literal.String.Single' or u(token) == 'Token.Literal.String.Double':
+            self._process_literal_string(token, content)
+        elif u(token).split('.')[-1] == 'Punctuation':
+            self._process_punctuation(token, content)
+        elif u(token).split('.')[-1] == 'Text':
+            self._process_text(token, content)
+        else:
+            self._process_other(token, content)
+
+    def _process_keyword(self, token, content):
+        if content == 'include' or content == 'include_once' or content == 'require' or content == 'require_once':
+            self.state = 'include'
+        else:
+            self.state = None
+
+    def _process_literal_string(self, token, content):
+        if self.state == 'include':
+            if content != '"':
+                content = content.strip()
+                if u(token) == 'Token.Literal.String.Single':
+                    content = content.strip("'")
+                self.append(content, truncate=False)
+                self.state = None
+
+    def _process_punctuation(self, token, content):
+        if content == '(':
+            self.parens += 1
+        elif content == ')':
+            self.parens -= 1
+        else:
+            self.state = None
+
+    def _process_text(self, token, content):
+        pass
+
+    def _process_other(self, token, content):
+        self.state = None