Read numbers from a specific line in a text file
Matthew Leman
What I want to do is to read each line of the text file separately, then first find a specific string, and if that string is found, read the integer in that line.
Here's what the string looks like:
{
"SmartCursorToggle": true,
"MapEnabled": true,
"InvasionBarMode": 2,
"AutoSave": true,
"AutoPause": false,
"Language": 1,
"PlacementPreview": true,
"GoreVisualsAllowed": true,
"VolumeSound": 1.0,
"VolumeAmbient": 0.75,
"VolumeMusic": 0.75,
"KeyUp": "W",
"KeyDown": "S",
"KeyLeft": "A",
"KeyRight": "D",
"KeyJump": "Space",
"KeyThrowItem": "T",
"KeyInventory": "Escape",
"KeyQuickHeal": "H",
"KeyQuickMana": "J",
"KeyQuickBuff": "B",
"KeyUseHook": "E",
"KeyAutoSelect": "LeftShift",
"KeySmartCursor": "LeftControl",
"KeyMount": "R",
"KeyMapStyle": "Tab",
"KeyFullscreenMap": "M",
"KeyMapZoomIn": "Add",
"KeyMapZoomOut": "Subtract",
"KeyMapAlphaUp": "PageUp",
"KeyMapAlphaDown": "PageDown",
"Fullscreen": false,
"WindowMaximized": false,
"DisplayWidth": 800,
"DisplayHeight": 704,
"GraphicsQuality": 0,
"BackgroundEnabled": true,
"FrameSkip": true,
"LightingMode": 0,
"LightingThreads": 0,
"MouseColorR": 252,
"MouseColorG": 233,
"MouseColorB": 221,
"Parallax": 90.0,
"ShowItemText": true,
"LastLaunchedVersion": 155,
"ClientUUID": "7d49a838-d7db-4e74-8124-92552a429491642949429491609524294916095159563f7c",
"UseSmartCursorForCommonBlocks": false,
"UseSmartAxeAfterSmartPickaxe": false,
"UseSmartWallReplacement": true,
"DisableLeftShiftTrashCan": false,
"HighlightNewItems": true,
"HidePasswords": false,
"ThickMouseEdges": true,
"ThickMouseEdgesPackedColor": 4289397106,
"ReverseUpDownForArmorSetBonuses": false,
"CloudSavingDefault": false
}
These "{" brackets are in the text file.
Suppose I want to find the R value of the mouse color, I put each row into an array of strings, and see if the string at index(i) contains "MouseColorR", how can I get the integer in that row?
Sirwan Afifi
As Stefan mentioned, the best way is to use JSON.NET :
var json = JsonConvert.DeserializeObject<Data>(str);
var value = json.MouseColorR;
stris your json input string.
Data class:
public class Data
{
public bool SmartCursorToggle { get; set; }
public bool MapEnabled { get; set; }
public int InvasionBarMode { get; set; }
public bool AutoSave { get; set; }
public bool AutoPause { get; set; }
public int Language { get; set; }
public bool PlacementPreview { get; set; }
public bool GoreVisualsAllowed { get; set; }
public float VolumeSound { get; set; }
public float VolumeAmbient { get; set; }
public float VolumeMusic { get; set; }
public string KeyUp { get; set; }
public string KeyDown { get; set; }
public string KeyLeft { get; set; }
public string KeyRight { get; set; }
public string KeyJump { get; set; }
public string KeyThrowItem { get; set; }
public string KeyInventory { get; set; }
public string KeyQuickHeal { get; set; }
public string KeyQuickMana { get; set; }
public string KeyQuickBuff { get; set; }
public string KeyUseHook { get; set; }
public string KeyAutoSelect { get; set; }
public string KeySmartCursor { get; set; }
public string KeyMount { get; set; }
public string KeyMapStyle { get; set; }
public string KeyFullscreenMap { get; set; }
public string KeyMapZoomIn { get; set; }
public string KeyMapZoomOut { get; set; }
public string KeyMapAlphaUp { get; set; }
public string KeyMapAlphaDown { get; set; }
public bool Fullscreen { get; set; }
public bool WindowMaximized { get; set; }
public int DisplayWidth { get; set; }
public int DisplayHeight { get; set; }
public int GraphicsQuality { get; set; }
public bool BackgroundEnabled { get; set; }
public bool FrameSkip { get; set; }
public int LightingMode { get; set; }
public int LightingThreads { get; set; }
public int MouseColorR { get; set; }
public int MouseColorG { get; set; }
public int MouseColorB { get; set; }
public float Parallax { get; set; }
public bool ShowItemText { get; set; }
public int LastLaunchedVersion { get; set; }
public string ClientUUID { get; set; }
public bool UseSmartCursorForCommonBlocks { get; set; }
public bool UseSmartAxeAfterSmartPickaxe { get; set; }
public bool UseSmartWallReplacement { get; set; }
public bool DisableLeftShiftTrashCan { get; set; }
public bool HighlightNewItems { get; set; }
public bool HidePasswords { get; set; }
public bool ThickMouseEdges { get; set; }
public long ThickMouseEdgesPackedColor { get; set; }
public bool ReverseUpDownForArmorSetBonuses { get; set; }
public bool CloudSavingDefault { get; set; }
}
Alternatively, if you don't want to use JSON.NET, and just want the value, you can use Regex:
var regex = new Regex("'MouseColorR': (\\d{3})");
Match match = regex.Match(str);
if (match.Success)
{
string v = match.Groups[1].Value;
}