--- /dev/null
+#!/usr/bin/env python
+#############################################################################
+#
+# Copyright 2008 Tungsten Graphics, Inc.
+#
+# This program is free software: you can redistribute it and/or modify it
+# under the terms of the GNU Lesser General Public License as published
+# by the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#############################################################################
+
+
+import sys
+import xml.parsers.expat
+
+
+ELEMENT_START, ELEMENT_END, CHARACTER_DATA, EOF = range(4)
+
+
+class XmlToken:
+
+ def __init__(self, type, name_or_data, attrs = None, line = None, column = None):
+ assert type in (ELEMENT_START, ELEMENT_END, CHARACTER_DATA, EOF)
+ self.type = type
+ self.name_or_data = name_or_data
+ self.attrs = attrs
+ self.line = line
+ self.column = column
+
+ def __str__(self):
+ if self.type == ELEMENT_START:
+ return '<' + self.name_or_data + ' ...>'
+ if self.type == ELEMENT_END:
+ return '</' + self.name_or_data + '>'
+ if self.type == CHARACTER_DATA:
+ return self.name_or_data
+ if self.type == EOF:
+ return 'end of file'
+ assert 0
+
+
+class XmlTokenizer:
+ """Expat based XML tokenizer."""
+
+ def __init__(self, fp, strip = True):
+ self.fp = fp
+ self.tokens = []
+ self.index = 0
+ self.final = False
+ self.strip = strip
+
+ self.parser = xml.parsers.expat.ParserCreate()
+ self.parser.StartElementHandler = self.handle_element_start
+ self.parser.EndElementHandler = self.handle_element_end
+ self.parser.CharacterDataHandler = self.handle_character_data
+
+ def handle_element_start(self, name, attributes):
+ line, column = self.pos()
+ token = XmlToken(ELEMENT_START, name, attributes, line, column)
+ self.tokens.append(token)
+
+ def handle_element_end(self, name):
+ line, column = self.pos()
+ token = XmlToken(ELEMENT_END, name, None, line, column)
+ self.tokens.append(token)
+
+ def handle_character_data(self, data):
+ if self.strip:
+ data = data.strip()
+ if not data:
+ return
+
+ line, column = self.pos()
+ token = XmlToken(CHARACTER_DATA, data, None, line, column)
+ self.tokens.append(token)
+
+ def next(self):
+ size = 16*1024
+ while self.index >= len(self.tokens) and not self.final:
+ self.tokens = []
+ self.index = 0
+ data = self.fp.read(size)
+ self.final = len(data) < size
+ self.parser.Parse(data, self.final)
+ if self.index >= len(self.tokens):
+ line, column = self.pos()
+ token = XmlToken(EOF, None, None, line, column)
+ else:
+ token = self.tokens[self.index]
+ self.index += 1
+ return token
+
+ def pos(self):
+ return self.parser.CurrentLineNumber, self.parser.CurrentColumnNumber
+
+
+class TokenMismatch(Exception):
+
+ def __init__(self, expected, found):
+ self.expected = expected
+ self.found = found
+
+ def __str__(self):
+ return '%u:%u: %s expected, %s found' % (self.found.line, self.found.column, str(self.expected), str(self.found))
+
+
+
+class XmlParser:
+ """Base XML document parser."""
+
+ def __init__(self, fp):
+ self.tokenizer = XmlTokenizer(fp)
+ self.consume()
+
+ def consume(self):
+ self.token = self.tokenizer.next()
+
+ def match_element_start(self, name):
+ return self.token.type == ELEMENT_START and self.token.name_or_data == name
+
+ def match_element_end(self, name):
+ return self.token.type == ELEMENT_END and self.token.name_or_data == name
+
+ def element_start(self, name):
+ while self.token.type == CHARACTER_DATA:
+ self.consume()
+ if self.token.type != ELEMENT_START:
+ raise TokenMismatch(XmlToken(ELEMENT_START, name), self.token)
+ if self.token.name_or_data != name:
+ raise TokenMismatch(XmlToken(ELEMENT_START, name), self.token)
+ attrs = self.token.attrs
+ self.consume()
+ return attrs
+
+ def element_end(self, name):
+ while self.token.type == CHARACTER_DATA:
+ self.consume()
+ if self.token.type != ELEMENT_END:
+ raise TokenMismatch(XmlToken(ELEMENT_END, name), self.token)
+ if self.token.name_or_data != name:
+ raise TokenMismatch(XmlToken(ELEMENT_END, name), self.token)
+ self.consume()
+
+ def character_data(self):
+ if self.token.type == CHARACTER_DATA:
+ data = self.token.name_or_data
+ self.consume()
+ else:
+ data = ''
+ return data
+
+
+class TraceParser(XmlParser):
+
+ def parse(self):
+ self.element_start('trace')
+ while self.token.type != ELEMENT_END:
+ self.parse_call()
+ self.element_end('trace')
+
+ def parse_call(self):
+ attrs = self.element_start('call')
+ name = attrs['name']
+ args = []
+ ret = None
+ while self.token.type == ELEMENT_START:
+ if self.token.name_or_data == 'arg':
+ arg = self.parse_arg()
+ args.append(arg)
+ elif self.token.name_or_data == 'ret':
+ ret = self.parse_ret()
+ else:
+ raise TokenMismatch("<arg ...> or <ret ...>", self.token)
+ self.element_end('call')
+
+ sys.stdout.write(name)
+ sys.stdout.write('(' + ', '.join([name + ' = ' + value for name, value in args]) + ')')
+ if ret is not None:
+ sys.stdout.write(' = ' + ret)
+ sys.stdout.write('\n')
+
+ def parse_arg(self):
+ attrs = self.element_start('arg')
+ name = attrs['name']
+ value = self.parse_value()
+ self.element_end('arg')
+
+ return name, value
+
+ def parse_ret(self):
+ attrs = self.element_start('ret')
+ value = self.parse_value()
+ self.element_end('ret')
+
+ return value
+
+ def parse_value(self):
+ if self.token.type == CHARACTER_DATA:
+ return self.character_data()
+ if self.token.type == ELEMENT_START:
+ if self.token.name_or_data == 'elem':
+ return self.parse_elems()
+ if self.token.name_or_data == 'ref':
+ return self.parse_ref()
+ raise TokenMismatch("<elem ...>, <ref ...>, or text", self.token)
+
+ def parse_elems(self):
+ elems = [self.parse_elem()]
+ while self.token.type != ELEMENT_END:
+ elems.append(self.parse_elem())
+ return '{' + ', '.join([name + ' = ' + value for name, value in elems]) + '}'
+
+ def parse_elem(self):
+ attrs = self.element_start('elem')
+ name = attrs['name']
+ value = self.parse_value()
+ self.element_end('elem')
+
+ return name, value
+
+ def parse_ref(self):
+ attrs = self.element_start('ref')
+ if self.token.type != ELEMENT_END:
+ value = '&' + self.parse_value()
+ else:
+ value = attrs['addr']
+ self.element_end('ref')
+
+ return value
+
+
+def main():
+ for arg in sys.argv[1:]:
+ parser = TraceParser(open(arg, 'rt'))
+ parser.parse()
+
+
+if __name__ == '__main__':
+ main()
projects / apitrace / commitdiff