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- Added support for inherent pointer types (typedefs of arrays)

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- Added a debug class variable to enable parser debugging.
This commit is contained in:
Jack Jansen 2002-04-12 13:21:49 +00:00
parent da70485694
commit ededa90f67
1 changed files with 34 additions and 0 deletions
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34
Tools/bgen/bgen/scantools.py
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@ -32,6 +32,9 @@ Error = "scantools.Error"
class Scanner: class Scanner:
# Set to 1 in subclass to debug your scanner patterns.
debug = 0
def __init__(self, input = None, output = None, defsoutput = None): def __init__(self, input = None, output = None, defsoutput = None):
self.initsilent() self.initsilent()
self.initblacklists() self.initblacklists()
@ -119,6 +122,7 @@ if missing: raise "Missing Types"
def initrepairinstructions(self): def initrepairinstructions(self):
self.repairinstructions = self.makerepairinstructions() self.repairinstructions = self.makerepairinstructions()
self.inherentpointertypes = self.makeinherentpointertypes()
def makerepairinstructions(self): def makerepairinstructions(self):
"""Parse the repair file into repair instructions. """Parse the repair file into repair instructions.
@ -211,6 +215,9 @@ if missing: raise "Missing Types"
list.append((fpat, patterns, replacements)) list.append((fpat, patterns, replacements))
return list return list
def makeinherentpointertypes(self):
return []
def openrepairfile(self, filename = "REPAIR"): def openrepairfile(self, filename = "REPAIR"):
try: try:
return open(filename, "r") return open(filename, "r")
@ -395,14 +402,24 @@ if missing: raise "Missing Types"
while 1: while 1:
try: line = self.getline() try: line = self.getline()
except EOFError: break except EOFError: break
if self.debug:
self.report("LINE: %s" % `line`)
if self.comment1.match(line) >= 0: if self.comment1.match(line) >= 0:
line = self.comment1.group('rest') line = self.comment1.group('rest')
if self.debug:
self.report("\tafter comment1: %s" % `line`)
while self.comment2.match(line) >= 0: while self.comment2.match(line) >= 0:
line = self.comment2.group('rest1')+self.comment2.group('rest2') line = self.comment2.group('rest1')+self.comment2.group('rest2')
if self.debug:
self.report("\tafter comment2: %s" % `line`)
if self.defsfile and self.sym.match(line) >= 0: if self.defsfile and self.sym.match(line) >= 0:
if self.debug:
self.report("\tmatches sym.")
self.dosymdef() self.dosymdef()
continue continue
if self.head.match(line) >= 0: if self.head.match(line) >= 0:
if self.debug:
self.report("\tmatches head.")
self.dofuncspec() self.dofuncspec()
continue continue
except EOFError: except EOFError:
@ -411,6 +428,8 @@ if missing: raise "Missing Types"
def dosymdef(self): def dosymdef(self):
name, defn = self.sym.group('name', 'defn') name, defn = self.sym.group('name', 'defn')
if self.debug:
self.report("\tsym: name=%s, defn=%s" % (`name`, `defn`))
if not name in self.blacklistnames: if not name in self.blacklistnames:
self.defsfile.write("%s = %s\n" % (name, defn)) self.defsfile.write("%s = %s\n" % (name, defn))
else: else:
@ -421,16 +440,29 @@ if missing: raise "Missing Types"
raw = self.line raw = self.line
while self.tail.search(raw) < 0: while self.tail.search(raw) < 0:
line = self.getline() line = self.getline()
if self.debug:
self.report("* CONTINUATION LINE: %s" % `line`)
if self.comment1.match(line) >= 0: if self.comment1.match(line) >= 0:
line = self.comment1.group('rest') line = self.comment1.group('rest')
if self.debug:
self.report("\tafter comment1: %s" % `line`)
while self.comment2.match(line) >= 0: while self.comment2.match(line) >= 0:
line = self.comment2.group('rest1')+self.comment2.group('rest2') line = self.comment2.group('rest1')+self.comment2.group('rest2')
if self.debug:
self.report("\tafter comment1: %s" % `line`)
raw = raw + line raw = raw + line
if self.debug:
self.report("* WHOLE LINE: %s" % `raw`)
self.processrawspec(raw) self.processrawspec(raw)
def processrawspec(self, raw): def processrawspec(self, raw):
if self.whole.search(raw) < 0: if self.whole.search(raw) < 0:
self.report("Bad raw spec: %s", `raw`) self.report("Bad raw spec: %s", `raw`)
if self.debug:
if self.type.search(raw) < 0:
self.report("(Type already doesn't match)")
else:
self.report("(Type matched: %s)" % `self.type.group('type')`)
return return
type, name, args = self.whole.group('type', 'name', 'args') type, name, args = self.whole.group('type', 'name', 'args')
type = regsub.gsub("\*", " ptr", type) type = regsub.gsub("\*", " ptr", type)
@ -486,6 +518,8 @@ if missing: raise "Missing Types"
elif type[-4:] == "_ptr": elif type[-4:] == "_ptr":
type = type[:-4] type = type[:-4]
mode = "OutMode" mode = "OutMode"
elif type in self.inherentpointertypes:
mode = "OutMode"
if type[-4:] == "_far": if type[-4:] == "_far":
type = type[:-4] type = type[:-4]
return type, name, mode return type, name, mode