add script for dumping poolitems values

Change-Id: Ifad071ebc17c6c4d0f8d498264070f78c14d9bd3
Reviewed-on: https://gerrit.libreoffice.org/29406Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
Tested-by: Noel Grandin <noel.grandin@collabora.co.uk>

bin/dump-poolitems-values.py

+#!/usr/bin/python
+
+
+# Produce a dump of name->constant of the poolitem values, to make interpreting things in the debugger easier
+#
+
+import subprocess
+import sys
+
+macroNameToValue = dict()
+macroNameToOriginalLine = dict()
+
+
+def extractMacroValue(macroValue):
+    if isinstance(macroValue, int):
+        return macroValue
+    elif macroValue.isdigit():
+        return int(macroValue)
+    elif macroValue[0:2] == "0x":
+        return int(macroValue, 16)
+    elif macroValue.find("+") != -1:
+        tokens = macroValue.split("+")
+        tokens1 = tokens[0].strip()
+        tokens2 = tokens[1].strip()
+        return extractMacroValue(tokens1) + extractMacroValue(tokens2)
+    elif macroValue.find("-") != -1:
+        tokens = macroValue.split("-")
+        tokens1 = tokens[0].strip()
+        tokens2 = tokens[1].strip()
+        return extractMacroValue(tokens1) - extractMacroValue(tokens2)
+    rv = extractMacroValue(macroNameToValue[macroValue])
+    macroNameToValue[macroValue] = rv
+    return rv
+
+
+a = subprocess.Popen("cpp -E -dD -Iinclude/ include/editeng/eeitem.hxx", stdout=subprocess.PIPE, shell=True)
+
+with a.stdout as txt:
+    for line in txt:
+        line = line.strip()
+        originalLine = line
+        if not line.startswith("#define "): continue        
+        # strip the '#define' off the front
+        idx1 = line.find(" ")
+        line = line[idx1 : len(line)].strip()
+        # extract the name
+        idx1 = line.find(" ")
+        if (idx1 == -1): continue
+        macroName = line[0 : idx1].strip()
+        line = line[idx1 : len(line)].strip()
+        # ignore internal stuff
+        if macroName.startswith("_"): continue
+        # strip any trailing comments
+        idx1 = line.find("//")
+        if (idx1 != -1):
+            line = line[0 : idx1].strip()
+        idx1 = line.find("/*")
+        if (idx1 != -1):
+            line = line[0 : idx1].strip()
+        if len(line) == 0: continue
+        # strip brackets
+        if line[0] == "(": line = line[1:]
+        if line[len(line)-1] == ")": line = line[0:len(line)-1]
+        macroValue = line.strip()
+        # ignore macros that #define strings, not interested in those
+        if (macroValue.find("\"") != -1): continue
+        # ignore the multiline macros
+        if (macroValue.find("\\") != -1): continue
+        # check for redefinitions
+        if macroNameToValue.has_key(macroName):
+            print "Redefinition:\n\t",  macroNameToOriginalLine[macroName], "\n\t" , originalLine
+        else:
+            macroNameToValue[macroName] = macroValue
+            macroNameToOriginalLine[macroName] = originalLine
+
+# decode the constants into their numeric values recursively
+macroValueToName = dict()
+for macroName in macroNameToValue:
+    macroValue = macroNameToValue[macroName]
+    try:
+        macroValue = extractMacroValue(macroName)
+        macroValueToName[macroValue] = macroName
+    except KeyError:
+        print "warning: could not decode macro ", macroName
+
+for macroValue in sorted(macroValueToName):
+    macroName = macroValueToName[macroValue]
+    print repr(macroNameToValue[macroName]).rjust(5), " ", macroName
+        
+        
+