ivan ivan3bx
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| var tesseract = require('node-tesseract'); | |
| var options = { | |
| l: 'eng', | |
| psm: 1 | |
| }; | |
| tesseract.process('/home/tesseract/IMG_4918.jpg', options, function(err, text) { | |
| if (err) { | |
| console.error(err); |
ivan3bx
/ ws_example.go
Created
January 9, 2016 17:24
Simple 'echo' server with golang.org/x/net/websocket
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| package main | |
| import ( | |
| "fmt" | |
| "io" | |
| "net/http" | |
| "reflect" | |
| "golang.org/x/net/websocket" | |
| ) |
ivan3bx
/ GestureRecognizerExample.swift
Last active
August 29, 2015 14:22
Q&D example of UIPanGestureRecognizer in Swift, dragging a square around
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| class ViewController: UIViewController { | |
| @IBOutlet weak var square: UIView! | |
| var squareMidpoint:CGPoint = CGPointZero | |
| @IBAction func handlePan(recognizer: UIPanGestureRecognizer) { | |
| let hitInRect = CGRectContainsPoint(square.frame, recognizer.locationInView(self.view)) | |
| let isMoving = (squareMidpoint != CGPointZero) | |
ivan3bx
/ randomTimer.swift
Created
May 2, 2015 19:34
Some throwaway code that invalidates an NSTimer, and create a new one for a pseudo-random timeout.
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| self.timer.invalidate() | |
| let value = ((Float((random()&1000)) / 100) % 5) + 0.4 | |
| let rndTimeout = NSTimeInterval(value) | |
| self.timer = NSTimer.scheduledTimerWithTimeInterval(rndTimeout, target: self, selector: Selector("showActivity:"), userInfo: nil, repeats: true) |
ivan3bx
/ ansi_color_output.swift
Created
December 7, 2014 23:01
ANSI color sequence example in Swift (Unicode)
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| let escape = "\u{001B}[" | |
| let none = escape + "0m" | |
| let red = escape + "0;31m" | |
| let green = escape + "0;32m" | |
| let yellow = escape + "0;33m" | |
| println("\(red)Everything \(green)or \(yellow)nothing\(none).") |
ivan3bx
/ url_handler.swift
Created
November 24, 2014 06:45
NXOAuth2 handler using AppleScript to open Safari
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| func createAuthHandler() -> NXOAuth2PreparedAuthorizationURLHandler { | |
| return { (url: NSURL!) -> Void in | |
| let sourceScript = "tell application \"Safari\"\n" | |
| + " open location \"\(url.absoluteString!)\"\n" | |
| + " activate\n" | |
| + "end tell\n" | |
| var err : NSDictionary? | |
| let script = NSAppleScript(source: sourceScript)! | |
| if script.compileAndReturnError(&err) { |
ivan3bx
/ detect_quote_header.rb
Created
June 10, 2014 03:59
grabbing the last 200 characters preceeding a 'blockquote'
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| # | |
| # Brute force method of grabbing 200 characters preceeding first <blockquote> element | |
| # | |
| p = Post.last | |
| parts = p.split_as_html | |
| root = Nokogiri::HTML.fragment(parts.first.raw_content) | |
| bq = root.search('blockquote')[1] | |
| test_string = root.inner_html[(root.inner_html.index(bq.to_html) - 200)...(root.inner_html.index(bq.to_html))] | |
| # ">\n<br><br><div class=\"gmail_quote\">On Tue, Jun 29, 2014 at 11:19 AM, John Smith <span dir=\"ltr\">< |
ivan3bx
/ NSTextViewDelegate_textchange.m
Created
April 15, 2014 05:36
Just a snippet of code for detecting a possible match. This seems inefficient for just single-character matches..
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| - (void)textDidChange:(NSNotification *)aNotification | |
| { | |
| NSTextView *textView = self.detailTextView; | |
| NSString *contents = textView.textStorage.string; | |
| NSRange selectionRange = textView.selectedRange; | |
| if (selectionRange.length == 0 && contents.length > 0) { | |
| NSString *possibleMatch = [contents substringWithRange:NSMakeRange(selectionRange.location - 1, 1)]; | |
| if ([possibleMatch isEqualToString:@"{"]) { | |
| [textView complete:nil]; |
ivan3bx
/ filter_by_artwork.m
Created
January 27, 2014 07:09
Forced to use @autoreleasepool in order to avoid memory leak in MPMediaItemArtwork.
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| NSMutableArray *albumIDs = [[NSMutableArray alloc] initWithCapacity:1000]; | |
| for (MPMediaItemCollection *collection in items) { | |
| @autoreleasepool { | |
| MPMediaItem *props = collection.representativeItem; | |
| NSString *albumTitle = [props valueForProperty:MPMediaItemPropertyAlbumTitle]; | |
| NSString *artistName = [props valueForProperty:MPMediaItemPropertyAlbumArtist]; | |
| MPMediaItemArtwork *artwork = [props valueForProperty:MPMediaItemPropertyArtwork]; |
ivan3bx
/ read_schema.m
Last active
December 30, 2015 16:19
Get the current schema out of a SQLite database..
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| - (NSString *)schemaFor:(NSString *)dbFile | |
| { | |
| sqlite3 *db; | |
| NSString *query = @"select name, sql from sqlite_master where type = 'table'"; | |
| NSString *result; | |
| if (sqlite3_open([dbFile UTF8String], &db) == SQLITE_OK) { | |
| sqlite3_stmt *stmt; | |
| if (sqlite3_prepare_v2(db, [query UTF8String], -1, &stmt, NULL) == SQLITE_OK) { | |
| if (sqlite3_step(stmt) == SQLITE_ROW) { |