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chktrcmp.py
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#!/usr/bin/env python
#
# Check trace components in FreeType 2 source.
# Author: suzuki toshiya, 2009
#
# This code is explicitly into the public domain.
import sys
import os
import re
SRC_FILE_LIST = []
USED_COMPONENT = {}
KNOWN_COMPONENT = {}
SRC_FILE_DIRS = [ "src" ]
TRACE_DEF_FILES = [ "include/freetype/internal/fttrace.h" ]
# --------------------------------------------------------------
# Parse command line options
#
for i in range( 1, len( sys.argv ) ):
if sys.argv[i].startswith( "--help" ):
print "Usage: %s [option]" % sys.argv[0]
print "Search used-but-defined and defined-but-not-used trace_XXX macros"
print ""
print " --help:"
print " Show this help"
print ""
print " --src-dirs=dir1:dir2:..."
print " Specify the directories of C source files to be checked"
print " Default is %s" % ":".join( SRC_FILE_DIRS )
print ""
print " --def-files=file1:file2:..."
print " Specify the header files including FT_TRACE_DEF()"
print " Default is %s" % ":".join( TRACE_DEF_FILES )
print ""
exit(0)
if sys.argv[i].startswith( "--src-dirs=" ):
SRC_FILE_DIRS = sys.argv[i].replace( "--src-dirs=", "", 1 ).split( ":" )
elif sys.argv[i].startswith( "--def-files=" ):
TRACE_DEF_FILES = sys.argv[i].replace( "--def-files=", "", 1 ).split( ":" )
# --------------------------------------------------------------
# Scan C source and header files using trace macros.
#
c_pathname_pat = re.compile( '^.*\.[ch]$', re.IGNORECASE )
trace_use_pat = re.compile( '^[ \t]*#define[ \t]+FT_COMPONENT[ \t]+trace_' )
for d in SRC_FILE_DIRS:
for ( p, dlst, flst ) in os.walk( d ):
for f in flst:
if c_pathname_pat.match( f ) != None:
src_pathname = os.path.join( p, f )
line_num = 0
for src_line in open( src_pathname, 'r' ):
line_num = line_num + 1
src_line = src_line.strip()
if trace_use_pat.match( src_line ) != None:
component_name = trace_use_pat.sub( '', src_line )
if component_name in USED_COMPONENT:
USED_COMPONENT[component_name].append( "%s:%d" % ( src_pathname, line_num ) )
else:
USED_COMPONENT[component_name] = [ "%s:%d" % ( src_pathname, line_num ) ]
# --------------------------------------------------------------
# Scan header file(s) defining trace macros.
#
trace_def_pat_opn = re.compile( '^.*FT_TRACE_DEF[ \t]*\([ \t]*' )
trace_def_pat_cls = re.compile( '[ \t\)].*$' )
for f in TRACE_DEF_FILES:
line_num = 0
for hdr_line in open( f, 'r' ):
line_num = line_num + 1
hdr_line = hdr_line.strip()
if trace_def_pat_opn.match( hdr_line ) != None:
component_name = trace_def_pat_opn.sub( '', hdr_line )
component_name = trace_def_pat_cls.sub( '', component_name )
if component_name in KNOWN_COMPONENT:
print "trace component %s is defined twice, see %s and fttrace.h:%d" % \
( component_name, KNOWN_COMPONENT[component_name], line_num )
else:
KNOWN_COMPONENT[component_name] = "%s:%d" % \
( os.path.basename( f ), line_num )
# --------------------------------------------------------------
# Compare the used and defined trace macros.
#
print "# Trace component used in the implementations but not defined in fttrace.h."
cmpnt = USED_COMPONENT.keys()
cmpnt.sort()
for c in cmpnt:
if c not in KNOWN_COMPONENT:
print "Trace component %s (used in %s) is not defined." % ( c, ", ".join( USED_COMPONENT[c] ) )
print "# Trace component is defined but not used in the implementations."
cmpnt = KNOWN_COMPONENT.keys()
cmpnt.sort()
for c in cmpnt:
if c not in USED_COMPONENT:
if c != "any":
print "Trace component %s (defined in %s) is not used." % ( c, KNOWN_COMPONENT[c] )

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