perl mode features

--HG--
branch : pmacs2

application.py

@@ -2,6 +2,7 @@
 import curses, curses.ascii, getpass, os, re, string, sys, termios, time
 import traceback
 from subprocess import Popen, PIPE, STDOUT
+from collections import defaultdict
 
 import buffer, bufferlist, color, completer, keyinput, method, minibuffer, mode
 import util, window
@@ -42,6 +43,7 @@ class Application(object):
 
         # initialize some basic stuff
         # a highlighted_range contains three things: (window, start_p, end_p)
+        self.state              = defaultdict(lambda: {})
         self.config             = {}
         self.highlighted_ranges = [] 
         self.mini_active        = False

mode/perl.py

@@ -1,4 +1,4 @@
-import re, sets, string, sys
+import os, re, sets, string, sys
 import color, commands, completer, context, default, method, mode, regex, tab
 from point import Point
 from lex import Grammar, PatternRule, ContextPatternRule, RegionRule, OverridePatternRule, PatternGroupRule
@@ -91,7 +91,7 @@ class PerlGrammar(Grammar):
 
         # some more basic stuff
         PatternRule(r'package', r"(?<=package )(?:[a-zA-Z_][a-zA-Z_0-9]*::)*[a-zA-Z_][a-zA-Z_0-9]*"),
-        PatternRule(r'sub', r"(?<=sub )[a-zA-Z_][a-zA-Z_0-9]*"),
+        PatternRule(r'sub', r"(?<=sub )(?:[a-zA-Z_][a-zA-Z_0-9]*::)*[a-zA-Z_][a-zA-Z_0-9]*"),
         PatternRule(r'use', r"(?<=use )(?:[a-zA-Z_][a-zA-Z_0-9]*::)*[a-zA-Z_][a-zA-Z_0-9]*"),
         PatternRule(r'require', r"(?<=require )(?:[a-zA-Z_][a-zA-Z_0-9]*::)*[a-zA-Z_][a-zA-Z_0-9]*"),
         PatternRule(r'perl_label', r'[a-zA-Z_][a-zA-Z0-9_]*:(?!:)'),
@@ -487,6 +487,31 @@ class PerlWrapParagraph(method.WrapParagraph):
         else:
             w.set_error("did not detect comment or pod lines")
 
+class PerlOpenModule(method.Method):
+    args = [Argument("module", type=type(""), prompt="Open Perl Module: ")]
+    def _execute(self, w, **vargs):
+        path = w.mode.find_module(vargs['module'])
+        if path:
+            w.application.methods['open-file'].execute(w, filename=path)
+        else:
+            w.set_error("Could not find module %r" % vargs['module'])
+class PerlOpenModuleWord(method.Method):
+    def _execute(self, w, **vargs):
+        word = pkg = w.get_token().string
+        path = None
+        while True:
+            path = w.mode.find_module(pkg)
+            if path:
+                break
+            parent = pkg.rsplit('::')[0]
+            if parent == pkg:
+                break
+            parent = pkg
+        if path:
+            w.application.methods['open-file'].execute(w, filename=path)
+        else:
+            w.set_error("Could not find module related to %r" % pkg)
+
 class PerlFunctionCompleter(completer.Completer):
     def get_candidates(self, s, w=None):
         old_window = w.buffer.method.old_window
@@ -516,9 +541,9 @@ class PerlContext(context.Context):
                 if t.name in m.opentokens and t.string in m.opentags:
                     stack.append(t.string)
                 elif t.name in m.closetokens and t.string in m.closetags:
-                    assert stack[-1] == m.closetags[t.string]
+                    if stack[-1] == m.closetags[t.string]:
                         stack.pop(-1)
-                    if not stack:
+                        if t.string == '}' and not stack:
                             curr = None
 
 class Perl(mode.Fundamental):
@@ -627,7 +652,7 @@ class Perl(mode.Fundamental):
     actions = [PerlSetLib, PerlCheckSyntax, PerlHashCleanup,
                PerlViewModulePerldoc, PerlViewWordPerldoc, PerlWrapParagraph,
                PerlInitFunctions, PerlGotoFunction, PerlWhichFunction,
-               PerlListFunctions]
+               PerlListFunctions, PerlOpenModule, PerlOpenModuleWord]
     completers = {
         'perlfunction': PerlFunctionCompleter(),
     }
@@ -664,6 +689,32 @@ class Perl(mode.Fundamental):
         self.functions = None
         self.funclines = None
 
+    def find_module(self, module):
+        parts = module.split('::')
+        parts[-1] += '.pm'
+        relpath = os.path.join(*parts)
+        path    = None
+        for d in self.get_inc():
+            path2 = os.path.join(d, relpath)
+            if os.path.exists(path2):
+                path = path2
+                break
+        return path
+
+    def get_inc(self):
+        a = self.window.application
+        if 'inc' not in a.state['perl']:
+            perllib = a.config.get('perl.lib')
+            if perllib:
+                cmd = "PERL5LIB=%r perl -e 'print join(\"\\n\", @INC);'" % perllib
+            else:
+                cmd = "perl -e 'print join(\"\\n\", @INC);'"
+            (status, data) = commands.getstatusoutput(cmd)
+            if status != 0:
+                raise Exception, "%r failed" % cmd
+            a.state['perl']['inc'] = data.split('\n')
+        return a.state['perl']['inc']
+
     def get_functions(self):
         return self.context.get_names()
     def get_function_names(self):