From efc1cb91507f83a2abdfcc531a1e4b06af9d89b6 Mon Sep 17 00:00:00 2001
From: Sebastian Parborg <darkdefende@gmail.com>
Date: Fri, 17 Jun 2011 00:08:35 +0200
Subject: Worked some more on string replacement

---
 filetypes/makefilecom.py | 124 ++++++++++++++++++++++++++++++++++++++++++-----
 filetypes/makefiles.py   |  15 ++----
 2 files changed, 116 insertions(+), 23 deletions(-)

diff --git a/filetypes/makefilecom.py b/filetypes/makefilecom.py
index 6bfd29b..e361f8c 100644
--- a/filetypes/makefilecom.py
+++ b/filetypes/makefilecom.py
@@ -1,10 +1,22 @@
 from ply import lex
 from ply import yacc
 
-def com_interp(string):
+def expand(lst,variables):
+    newlst = []
+    for item in lst:
+        if isinstance(item, list):
+            strlst = com_interp(item[0],variables)
+            netlst += expand(strlst,variables)
+        else:
+            newlst.append(item)
+
+    return newlst
+
+def com_interp(string,variables):
     tokens = (
             "COMMAND",
             "COMMA",
+            "COL",
             "EQ",
             "TEXT",
             "PERCENT",
@@ -51,6 +63,10 @@ def com_interp(string):
         r","
         return t
 
+     def t_COL(t):
+        r":"
+        return t
+
     def t_TEXT(t):
         r"[^ \n\t:=\\,]+"
         return t
@@ -69,14 +85,100 @@ def com_interp(string):
     #for tok in lexer:
     #    print(tok)
 
-    tokens = 0
+    tokens = []
     for tok in lexer:
-        tokens += 1
-        print("gethere")
-
-    print(tokens)
-    if tokens == 1:
-        print("gapp")
-
-
-com_interp("HELOO")
+        tokens += [tok.value]
+
+    if len(tokens) == 1:
+        if tokens[0] in variables:
+            return variables[tokens[0]]
+        else:
+            return []
+
+    #YACC stuff begins here
+
+    def p_tonewstr(p):
+        """
+        newstr  : getstr EQ TEXT PERCENT TEXT
+                | getstr EQ PERCENT TEXT
+                | getstr EQ TEXT PERCENT
+                | getstr EQ PERCENT
+                | getstr EQ TEXT
+        """
+        newtextlist = []
+        if p[1] == []:
+            p[0] = p[1]
+        elif len(p) == 6:
+            for text in p[1]:
+                newtextlist.append(p[3] + text + p[5])
+            p[0] = newtextlist
+
+        elif len(p) == 5:
+            if p[3] == "%":
+                for text in p[1]:
+                    newtextlist.append(text + p[4])
+                p[0] = newtextlist
+            else:
+                for text in p[1]:
+                    newtextlist.append(p[3] + text)
+                p[0] = newtextlist
+
+        elif p[3] == "%":
+            p[0] = p[1]
+        else:
+            for text in p[1]:
+                newtextlist.append(text + p[3])
+            p[0] = newtextlist
+
+
+    def p_getstr(p):
+        """
+        getstr : TEXT COL TEXT PERCENT TEXT
+               | TEXT COL PERCENT TEXT
+               | TEXT COL TEXT PERCENT
+               | TEXT COL PERCENT
+               | TEXT COL TEXT
+        """
+        if not p[1] in variables:
+            p[0] = []
+        else:
+            textlst = expand(variables[p[1]]): #make sure it's expanded
+            newtextlst = []
+
+            if len(p) == 6:
+                l1 = len(p[3]) #length of str1
+                l2 = len(p[5])
+                for text in textlst
+                    if p[3] == text[0:l1] and p[5] == text[-l2:]:
+                        newtextlst.append(text[l1:-l2])
+
+                p[0] = newtextlst
+
+            elif len(p) == 5:
+                if p[3] == "%":
+                    l1 = len(p[4])
+                    for text in textlst
+                        if p[4] == text[-l1:]
+                            newtextlst.append(text[:-l1])
+
+                    p[0] = newtextlst
+                else:
+                    l1 = len(p[3])
+                    for text in textlst
+                        if p[3] == text[0:l1]
+                            newtextlst.append(text[l1:])
+
+                    p[0] = newtextlst
+            elif p[3] == "%":
+                p[0] = textlst
+            else:
+                l1 = len(p[3])
+                    for text in textlst
+                        if p[3] == text[-l1:]
+                            newtextlst.append(text[:-l1])
+
+                    p[0] = newtextlst
+
+
+
+com_interp("HELOO",{"HELOO":["mupp"]})
diff --git a/filetypes/makefiles.py b/filetypes/makefiles.py
index d87f66f..332d14b 100644
--- a/filetypes/makefiles.py
+++ b/filetypes/makefiles.py
@@ -1,6 +1,6 @@
 from ply import lex
 from ply import yacc
-from makefilecom import com_interp
+from makefilecom import expand
 
 def scanmakefile(makefile):
     tokens = (
@@ -166,6 +166,8 @@ def scanmakefile(makefile):
     ivars = [] #keep track of the immediate variables
     targets = [] #buildtargets, [[target,deps,options],[target2,....
 
+    def p_target(p):
+
     def p_peq(p): #immediate if peq was defined as immediate before else deferred
         """
         end : end PEQ textlst end
@@ -264,17 +266,6 @@ def scanmakefile(makefile):
 #immediate
 #deferred
 
-def expand(lst):
-    newlst = []
-    for item in lst:
-        if isinstance(item, list):
-            newitem = com_interp(item[0])
-        else:
-            newitem = item
-
-        newlst += newitem
-
-    return newlst
 
 file="Makefile2"
 
-- 
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