sort_controllers.py

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Author : Philipp Wiesemann
Date : 2015-06-21 17:33:46
Hash : 0e45984f
Message : Fixed crash if initialization of EGL failed but was tried again later. The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().

src/joystick/sort_controllers.py

#!/usr/bin/env python
#
# Script to sort the game controller database entries in SDL_gamecontroller.c

import re


filename = "SDL_gamecontrollerdb.h"
input = open(filename)
output = open(filename + ".new", "w")
parsing_controllers = False
controllers = []
controller_guids = {}
split_pattern = re.compile(r'([^"]*")([^,]*,)([^,]*,)([^"]*)(".*)')

def save_controller(line):
    global controllers
    match = split_pattern.match(line)
    entry = [ match.group(1), match.group(2), match.group(3) ]
    bindings = sorted(match.group(4).split(","))
    if (bindings[0] == ""):
        bindings.pop(0)
    entry.extend(",".join(bindings) + ",")
    entry.append(match.group(5))
    controllers.append(entry)

def write_controllers():
    global controllers
    global controller_guids
    for entry in sorted(controllers, key=lambda entry: entry[2]):
        line = "".join(entry) + "\n"
        if not line.endswith(",\n") and not line.endswith("*/\n"):
            print("Warning: '%s' is missing a comma at the end of the line" % (line))
        if (entry[1] in controller_guids):
            print("Warning: entry '%s' is duplicate of entry '%s'" % (entry[2], controller_guids[entry[1]][2]))
        controller_guids[entry[1]] = entry

        output.write(line)
    controllers = []
    controller_guids = {}

for line in input:
    if (parsing_controllers):
        if (line.startswith("{")):
            output.write(line)
        elif (line.startswith("    NULL")):
            parsing_controllers = False
            write_controllers()
            output.write(line)
        elif (line.startswith("#if")):
            print("Parsing " + line.strip())
            output.write(line)
        elif (line.startswith("#endif")):
            write_controllers()
            output.write(line)
        else:
            save_controller(line)
    else:
        if (line.startswith("static const char *s_ControllerMappings")):
            parsing_controllers = True

        output.write(line)

output.close()
print("Finished writing %s.new" % filename)

kc3-lang/SDL/src/joystick/sort_controllers.py

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kc3-lang/SDL /src/joystick/sort_controllers.py