我有一些像这样的代码，我想用PHP以数组格式阅读它。
"Vehicle"
{
"WheelsPerAxle" "2"
"Body"
{
"CounterTorqueFactor" "0.9"
"MassCenterOverride" "0 -3 13"
"MassOverride" "1467"
"AddGravity" "0.7"
"MaxAngularVelocity" "720"
}
"Engine"
{
"HorsePower" "301"
"MaxRPM" "4200"
"MaxSpeed" "95"
"MaxReverseSpeed" "28"
"AutobrakeSpeedGain" "1.1"
"AutobrakeSpeedFactor" "3"
"Autotransmission" "0"
"AxleRatio" "4.56"
"Gear" "3.2"
"Gear" "2.4"
"Gear" "1.5"
"Gear" "1"
"Gear" "0.84"
"ShiftUpRPM" "3800"
"ShiftDownRPM" "1600"
}
"Steering"
{
"DegreesSlow" "40"
"DegreesFast" "12"
"DegreesBoost" "11"
"FastDampen" "0"
"SteeringExponent" "1.4"
"SlowCarSpeed" "12"
"FastCarSpeed" "60"
"SlowSteeringRate" "3"
"FastSteeringRate" "2"
"SteeringRestRateSlow" "3"
"SteeringRestRateFast" "2"
"TurnThrottleReduceSlow" "0.01"
"TurnThrottleReduceFast" "0.6"
"BrakeSteeringRateFactor" "3"
"ThrottleSteeringRestRateFactor" "2"
"BoostSteeringRestRateFactor" "1.7"
"BoostSteeringRateFactor" "1.7"
"PowerSlideAccel" "250"
"SkidAllowed" "1"
"DustCloud" "1"
}
"Axle"
{
"Wheel"
{
"Radius" "15"
"Mass" "270"
"Inertia" "0"
"Damping" "0.3"
"RotDamping" "0.2"
"Material" "jeeptire"
"SkidMaterial" "slidingrubbertire"
"BrakeMaterial" "brakingrubbertire"
}
"Suspension"
{
"SpringConstant" "90"
"SpringDamping" "0.5"
"StabilizerConstant" "0"
"SpringDampingCompression" "7"
"MaxBodyForce" "10"
}
"TorqueFactor" "0.95"
"BrakeFactor" "0.4"
}
"Axle"
{
"Wheel"
{
"Radius" "15"
"Mass" "230"
"Inertia" "0"
"Damping" "0"
"RotDamping" "0"
"Material" "jeeptire"
"SkidMaterial" "slidingrubbertire"
"BrakeMaterial" "brakingrubbertire"
}
"Suspension"
{
"SpringConstant" "70"
"SpringDamping" "0.5"
"StabilizerConstant" "0"
"SpringDampingCompression" "7"
"MaxBodyForce" "15"
}
"TorqueFactor" "0"
"BrakeFactor" "0.6"
}
}
"Vehicle_Sounds"
{
"Gear"
{
"Max_Speed" "0.06"
"Speed_Approach_Factor" "1"
}
"Gear"
{
"Max_Speed" "0.25"
"Speed_Approach_Factor" "0.08"
}
"Gear"
{
"Max_Speed" "0.35"
"Speed_Approach_Factor" "0.05"
}
"Gear"
{
"Max_Speed" "0.55"
"Speed_Approach_Factor" "0.035"
}
"Gear"
{
"Max_Speed" "1"
"Speed_Approach_Factor" "0.01"
}
"State"
{
"Name" "SS_SHUTDOWN_WATER"
"Sound" "atv_stall_in_water"
"Min_Time" "0"
}
"State"
{
"Name" "SS_GEAR_2_RESUME"
"Sound" "vehicles\tdmcars\focusrs\third.wav"
"Min_Time" "0.5"
}
"State"
{
"Name" "SS_START_WATER"
"Sound" "atv_start_in_water"
"Min_Time" "0"
}
"State"
{
"Name" "SS_GEAR_3_RESUME"
"Sound" "vehicles\tdmcars\focusrs\fourth_cruise.wav"
"Min_Time" "0.5"
}
"State"
{
"Name" "SS_REVERSE"
"Sound" "vehicles\tdmcars\focusrs\rev.wav"
"Min_Time" "0.5"
}
"State"
{
"Name" "SS_IDLE"
"Sound" "vehicles\tdmcars\focusrs\idle.wav"
"Min_Time" "0"
}
"State"
{
"Name" "SS_GEAR_1_RESUME"
"Sound" "vehicles\tdmcars\focusrs\first.wav"
"Min_Time" "0.5"
}
"State"
{
"Name" "SS_GEAR_4"
"Sound" "vehicles\tdmcars\focusrs\fourth_cruise.wav"
"Min_Time" "0.5"
}
"State"
{
"Name" "SS_GEAR_1"
"Sound" "vehicles\tdmcars\focusrs\first.wav"
"Min_Time" "0.5"
}
"State"
{
"Name" "SS_SLOWDOWN_HIGHSPEED"
"Sound" "vehicles\tdmcars\focusrs\throttle_off.wav"
"Min_Time" "0"
}
"State"
{
"Name" "SS_SHUTDOWN"
"Sound" "vehicles\tdmcars\slsamg\engineoff.mp3"
"Min_Time" "0"
}
"State"
{
"Name" "SS_START_IDLE"
"Sound" "vehicles\tdmcars\slsamg\enginestart.mp3"
"Min_Time" "0.3"
}
"State"
{
"Name" "SS_GEAR_4_RESUME"
"Sound" "vehicles\tdmcars\focusrs\fourth_cruise.wav"
"Min_Time" "0.5"
}
"State"
{
"Name" "SS_GEAR_3"
"Sound" "vehicles\tdmcars\focusrs\third.wav"
"Min_Time" "0.5"
}
"State"
{
"Name" "SS_GEAR_0_RESUME"
"Sound" "vehicles\tdmcars\focusrs\first.wav"
"Min_Time" "0.75"
}
"State"
{
"Name" "SS_GEAR_0"
"Sound" "vehicles\tdmcars\focusrs\idle.wav"
"Min_Time" "0.08"
}
"State"
{
"Name" "SS_GEAR_2"
"Sound" "vehicles\tdmcars\focusrs\second.wav"
"Min_Time" "0.5"
}
"State"
{
"Name" "SS_SLOWDOWN"
"Sound" "vehicles\tdmcars\focusrs\idle.wav"
"Min_Time" "0"
}
"CrashSound"
{
"Min_Speed" "350"
"Min_Speed_Change" "250"
"Sound" "atv_impact_medium"
"Gear_Limit" "1"
}
"CrashSound"
{
"Min_Speed" "450"
"Min_Speed_Change" "350"
"Sound" "atv_impact_heavy"
"Gear_Limit" "0"
}
"Skid_LowFriction" ""
"Skid_NormalFriction" ""
"Skid_HighFriction" ""
}
我不知道应该如何开始
键总是一样的
有人可以给我一个关于如何解析这样一个文件的提示吗？
提前致谢
答案 0 :(得分：0)
看起来你应该为这种格式编写自己的解析器。你可以尝试找一个解析器生成器来从一些中间语法生成一个解析器，或者你可以从头开始编写它。我认为从头开始编写它是可行的。
我已经给了它一个镜头并为你实现了一个演示解析器，解析器只是你需要的一部分。评论应该解释得足以让你开始。
您需要特别注意的是，当您开始处理花括号时，您需要递归调用。祝你好运！
<?php
// simple demo parser that will parse tokens surrounded by " from a file that
// only contains whitespace in the form of spaces or newlines aside from these
// tokens
// For example something like this:
/*
"hello"
"this"
"is"
"a"
"Test"
"10.9"
*/
// parse a token from the string
// assume opening " has already been encountered
// note the pass by reference!
function parse_token($textData, &$index, &$token) {
$token = "";
$length = strlen($textData);
while ($index < $length) {
// get next character
$char = $textData{$index};
// increment for next round
// do this here because we want to increment before breaking
// out of the loop
$index++;
// anything that is not " is part of the token
if ("\"" != $char) {
$token .= $char;
} else {
break;
}
}
}
// main function to do the parsing
// note the pass by reference!
function do_parse($textData, &$index, &$output) {
$output = [];
$char = NULL;
$length = strlen($textData);
$token = NULL;
while ($index < $length) {
// get next character
$char = $textData{$index};
// if we encounter an opening "
if ("\"" == $char) {
// parse the rest as a token, and store it in our output array
$output[] = parse_token($textData, ++$index, $token);
} else if (" " == $char || "\n" == $char) {
// skip whitespace, go on to next char
$index++;
} else {
throw new Exception('unexpected character ' . $char);
}
}
}
// read file into string
$data = file_get_contents ("data.txt");
// perform actual parsing
$index = 0;
do_parse($data, $index, $parsed);
// print result
print_r($parsed);
答案 1 :(得分：-1)