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  • What class structure allows for a base class and mix/match of subclasses? (Similar to Users w/ roles)

    - by cdeszaq
    I have a set of base characteristics, and then a number of sub-types. Each instance must be one of the sub-types, but can be multiple sub-types at once. The sub-types of each thing can change. In general, I don't care what subtype I have, but sometimes I do care. This is much like a Users-Roles sort of relationship where a User having a particular Role gives the user additional characteristics. Sort of like duck-typing (ie. If my Foo has a Bar, I can treat it like a ThingWithABar.) Straight inheritance doesn't work, since that doesn't allow mix/match of sub-types. (ie. no multi-inheritance). Straight composition doesn't work because I can't switch that up at runtime. How can I model this?

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  • Java: 2-assignments-2-initializations inside for-loop not allowed?

    - by HH
    $ javac MatchTest.java MatchTest.java:7: ')' expected for((int i=-1 && String match="hello"); (i=text.indexOf(match)+1);) ^ MatchTest.java:7: ';' expected for((int i=-1 && String match="hello"); (i=text.indexOf(match)+1);) ^ MatchTest.java:7: ';' expected for((int i=-1 && String match="hello"); (i=text.indexOf(match)+1);) ^ MatchTest.java:7: not a statement for((int i=-1 && String match="hello"); (i=text.indexOf(match)+1);) ^ MatchTest.java:7: illegal start of expression for((int i=-1 && String match="hello"); (i=text.indexOf(match)+1);) ^ 5 errors $ cat MatchTest.java import java.util.*; import java.io.*; public class MatchTest { public static void main(String[] args){ String text = "hello0123456789hello0123456789hello1234567890hello3423243423232"; for((int i=-1 && String match="hello"); (i=text.indexOf(match)+1);) System.out.println(i); } }

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  • What regular expression can I use to match an IP address?

    - by jennifer
    With the following grep syntax I want to match all IP address in a file (from a ksh script) grep '[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}' file The problem: It also matches words (IP) that have more then 4 octets: 1.1.1.1.1 or 192.1.1.1.160 How can I match a valid IP and only IP addresses with 4 octets? I can also use Perl – a one line syntax solution, if grep doesn't work.

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  • How to determine the exact java executable that a running app is using?

    - by kjo
    Suppose I click on a java app's icon, and the app starts normally. How can I find out the path to the java executable that is running the app? Better yet, is there a way to find the exact command-line invocation of java that would have the same effect as double-clicking on the icon? (Note: I'm aware of open -a, and it is definitely not what I'm asking about here. The command-line invocation I'm interested in should begin with java ..., specify a classpath, etc.)

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  • ruby recursive regex

    - by Reed Debaets
    So why is this not working? I'm creating a regex that will match a formula (which is then part of a larger standard description). But I'm stuck here, as it doesn't appear to want to match embedded formulas within a formula. stat = /(Stat3|Stat2|Stat1)/ number_sym = /[0-9]*/ formula_sym = /((target's )?#{stat}|#{number_sym}|N#{number_sym})\%?/ math_sym = /(\+|\-|\*|\/|\%)/ formula = /^\((#{formula}|#{formula_sym}) (#{math_sym} (#{formula}|#{formula_sym}))?\)$/ p "(target's Stat2 * N1%)".match(formula).to_s #matches p "((target's Stat2 * N1%) + 3)".match(formula).to_s #no match p "(Stat1 + ((target's Stat2 * N1%) + 3))".match(formula).to_s #no match

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  • Best way to generate pieces in match-3 games, and then tracking them?

    - by JonLim
    I've been working on a match-3 style game in Actionscript using Flixel, and so far, I've been able to build the core mechanics of the game, including board generation, piece generation, piece swapping and movement, and checking algorithms. However, I am now running into issues with clearing out pieces and letting the above pieces fall down and generating new pieces. The reason I'm running into these issues is that when all of the pieces are generated, the pertinent values (position, sprite ID, and sprite object) are pushed into an array that helps me track everything, all the time. When pieces are moved, I swap the values of the corresponding arrays and life goes on. And that array is the core of my problem: if a row in the middle of the board clears out, ideally, all of the pieces above the cleared pieces should fall down to take their place and new pieces are generated at the top and also fall into place. Except if I try to do that now, all the pieces can fall down, but then I'd have to bump all of their values into the right arrays (oh god my head) and then generate new pieces and fit THOSE into the correct place in the array. Am I overthinking this? Or is there a far better way to track these pieces? Thanks guys!

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  • Compare cells in two different spreadsheets and extract data from one an place it in the other if match found

    - by Fergie
    I need to find a way to compare two spreadsheets and if there is a match on specific cells, pull data from one sheet to another. Say the two spreadsheets contain a value that identifies a piece of equipment: spreadsheet 1 spreadsheet 2 Server Server Serial # 123abc 123abc 123-xx-456 There are of course many, many records/rows in each sheet. I need to look at the first cell in the server column of sheet 1 and then search a range of cells in the sever column of sheet 2 for a match. If there is a match, I need to pull the serial # value from the cell in the matching row an put it into the serial # cell of the matching row in sheet 1 (all of the "serial #" cells in sheet 1 are presently empty.) If that description explaination is too convoluted I can explain by answering any questions you may have. My deadline for this task is Noon tomorrow, 30 Aug 2012. Yes, I got the task today at noon.... I am not an Excel user and just get thrust into it on occassion... Any help would be a huge assist.

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  • Is the size of a struct required to be an exact multiple of the alignment of that struct?

    - by Steve314
    Once again, I'm questioning a longstanding belief. Until today, I believed that the alignment of the following struct would normally be 4 and the size would normally be 5... struct example { int m_Assume_32_Bits; char m_Assume_8_Bit_Bytes; }; Because of this assumption, I have data structure code that uses offsetof to determine the distance in bytes between two adjacent items in an array. Today, I spotted some old code that was using sizeof where it shouldn't, couldn't understand why I hadn't had bugs from it, coded up a unit test - and the test surprised me by passing. A bit of investigation showed that the sizeof the type I used for the test (similar to the struct above) was an exact multiple of the alignment - ie 8 bytes. It had padding after the final member. Here is an example of why I never expected this... struct example2 { example m_Example; char m_Why_Cant_This_Be_At_Offset_6_Bytes; }; A bit of Googling showed examples that make it clear that this padding after the final member is allowed - for example http://en.wikipedia.org/wiki/Data_structure_alignment#Data_structure_padding (the "or at the end of the structure" bit). This is a bit embarrassing, as I recently posted this comment - Use of struct padding (my first comment to that answer). What I can't seem to determine is whether this padding to an exact multiple of the alignment is guaranteed by the C++ standard, or whether it is just something that is permitted and that some (but maybe not all) compilers do. So - is the size of a struct required to be an exact multiple of the alignment of that struct according to the C++ standard? If the C standard makes different guarantees, I'm interested in that too, but the focus is on C++.

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  • How to forward OpenVPN Port to NAT'd XEN domU

    - by John
    I want to install a OpenVPN domU on XEN. Dom0 and domU are running Debian Squeeze, all domU are on a NAT'd privat network 10.0.0.1/24 My VPN-Gate is von 10.0.0.1 and running. How can I make it accessible under the dom0 public IP? I tried forwarding the port using iptables, but without any success. Here is what i did: ~ # iptables -L -n -v Chain INPUT (policy ACCEPT 1397 packets, 118K bytes) pkts bytes target prot opt in out source destination Chain FORWARD (policy ACCEPT 930 packets, 133K bytes) pkts bytes target prot opt in out source destination 0 0 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED PHYSDEV match --physdev-out vif5.0 0 0 ACCEPT udp -- * * 0.0.0.0/0 0.0.0.0/0 PHYSDEV match --physdev-in vif5.0 udp spt:68 dpt:67 0 0 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED PHYSDEV match --physdev-out vif5.0 0 0 ACCEPT all -- * * 10.0.0.1 0.0.0.0/0 PHYSDEV match --physdev-in vif5.0 0 0 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED PHYSDEV match --physdev-out vif3.0 0 0 ACCEPT udp -- * * 0.0.0.0/0 0.0.0.0/0 PHYSDEV match --physdev-in vif3.0 udp spt:68 dpt:67 0 0 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED PHYSDEV match --physdev-out vif3.0 0 0 ACCEPT all -- * * 10.0.0.5 0.0.0.0/0 PHYSDEV match --physdev-in vif3.0 0 0 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED PHYSDEV match --physdev-out vif2.0 0 0 ACCEPT udp -- * * 0.0.0.0/0 0.0.0.0/0 PHYSDEV match --physdev-in vif2.0 udp spt:68 dpt:67 0 0 ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED PHYSDEV match --physdev-out vif2.0 0 0 ACCEPT all -- * * 10.0.0.2 0.0.0.0/0 PHYSDEV match --physdev-in vif2.0 147 8236 ACCEPT tcp -- eth0 * 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:80 13 546 ACCEPT udp -- eth0 * 0.0.0.0/0 0.0.0.0/0 udp dpt:1194 Chain OUTPUT (policy ACCEPT 1000 packets, 99240 bytes) pkts bytes target prot opt in out source destination ~ # iptables -L -t nat -n -v Chain PREROUTING (policy ACCEPT 324 packets, 23925 bytes) pkts bytes target prot opt in out source destination 139 7824 DNAT tcp -- eth0 * 0.0.0.0/0 0.0.0.0/0 tcp dpt:80 to:10.0.0.5:80 1 42 DNAT udp -- * * 0.0.0.0/0 0.0.0.0/0 udp dpt:1194 to:10.0.0.1:1194 Chain POSTROUTING (policy ACCEPT 92 packets, 5030 bytes) pkts bytes target prot opt in out source destination 863 64983 MASQUERADE all -- * eth0 0.0.0.0/0 0.0.0.0/0 0 0 MASQUERADE all -- * eth0 0.0.0.0/0 0.0.0.0/0 0 0 MASQUERADE all -- * eth0 0.0.0.0/0 0.0.0.0/0 Chain OUTPUT (policy ACCEPT 180 packets, 13953 bytes) pkts bytes target prot opt in out source destination

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  • Collection RemoveAll Extension Method

    - by João Angelo
    I had previously posted a RemoveAll extension method for the Dictionary<K,V> class, now it’s time to have one for the Collection<T> class. The signature is the same as in the corresponding method already available in List<T> and the implementation relies on the RemoveAt method to perform the actual removal of each element. Finally, here’s the code: public static class CollectionExtensions { /// <summary> /// Removes from the target collection all elements that match the specified predicate. /// </summary> /// <typeparam name="T">The type of elements in the target collection.</typeparam> /// <param name="collection">The target collection.</param> /// <param name="match">The predicate used to match elements.</param> /// <exception cref="ArgumentNullException"> /// The target collection is a null reference. /// <br />-or-<br /> /// The match predicate is a null reference. /// </exception> /// <returns>Returns the number of elements removed.</returns> public static int RemoveAll<T>(this Collection<T> collection, Predicate<T> match) { if (collection == null) throw new ArgumentNullException("collection"); if (match == null) throw new ArgumentNullException("match"); int count = 0; for (int i = collection.Count - 1; i >= 0; i--) { if (match(collection[i])) { collection.RemoveAt(i); count++; } } return count; } }

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  • How can I easily confirm in Linux that two separate directories have the exact same contents?

    - by Mike B
    CentOS 5.x Mq question seemed similar to this one but I wasn't sure... I have two servers (completely isolated from each other), each with a directory and sub-directories that should have the same exact contents. For example the directory layout could be something like: SERVER A - /opt/foo/foob/1092380298309128301283/123.txt /opt/foo/foob/5094380298309128301283/456.txt /opt/foo/foob/5092380298309128301283/789.txt /opt/foo/foob/1592380298309128301283/abc.txt SERVER B - /opt/foo/foob/1092380298309128301283/123.txt /opt/foo/foob/5094380298309128301283/456.txt /opt/foo/foob/5092380298309128301283/789.txt /opt/foo/foob/1592380298309128301283/abc.txt Ideally I'd like a way to do a recursive check and have something confirm that everything matches. I also want to avoid using any third-party tools. Any ideas?

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  • How can I set my screen resolution to match my TV?

    - by Scott Severance
    I have a computer in my classroom that's connected to an LG smart TV (that's actually not so smart. I wouldn't recommend buying one.). For the touch interface, the TV wants a resolution of 1920x1080 at 60Hz. However, I can't seem to set the computer to that resolution. The display settings only offer 1024x768 and 640x480. The computer dual boots with Windows XP, where widescreen options are available in approximately the required size, but the exact resolution -- or even aspect ratio-- isn't available in XP either. I tried the following command: xrandr -s 1920x1080 -r 60 The response was: Size 1920x1080 not found in available modes Back in the old days, the solution would be to edit xorg.conf. However, since that file no longer exists, and I haven't found up-to-date info, I don't know what else to do. If it helps, this machine will never be connected to a different display, so resolution flexibility isn't important. Here's the output of lshw: *-display:0 description: VGA compatible controller product: 4 Series Chipset Integrated Graphics Controller vendor: Intel Corporation physical id: 2 bus info: pci@0000:00:02.0 version: 03 width: 64 bits clock: 33MHz capabilities: vga_controller bus_master cap_list rom configuration: driver=i915 latency=0 resources: irq:42 memory:fe800000-febfffff memory:d0000000-dfffffff ioport:ecd8(size=8) *-display:1 UNCLAIMED description: Display controller product: 4 Series Chipset Integrated Graphics Controller vendor: Intel Corporation physical id: 2.1 bus info: pci@0000:00:02.1 version: 03 width: 64 bits clock: 33MHz According to the system settings, my graphics driver is unknown and my "experience" is standard. This is 64-bit Ubuntu 12.04 (Precise) Note: There are a number of similar questions to this one, but they didn't include any answers that helped me. Update After posting this question, I noticed one in the sidebar that I hadn't found through search but which appeared to contain the answer. Based on that question, I created the /etc/X11/xorg.conf file below: Section "ServerLayout" Identifier "X.org Configured" Screen 0 "Screen0" 0 0 InputDevice "Mouse0" "CorePointer" InputDevice "Keyboard0" "CoreKeyboard" EndSection Section "Files" ModulePath "/usr/lib/xorg/modules" FontPath "/usr/share/fonts/X11/misc" FontPath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType" FontPath "built-ins" EndSection Section "Module" Load "glx" Load "dri2" Load "dbe" Load "dri" Load "record" Load "extmod" EndSection Section "InputDevice" Identifier "Keyboard0" Driver "kbd" EndSection Section "InputDevice" Identifier "Mouse0" Driver "mouse" Option "Protocol" "auto" Option "Device" "/dev/input/mice" Option "ZAxisMapping" "4 5 6 7" EndSection Section "Monitor" Identifier "Monitor0" VendorName "LG" ModelName "Smart TV" EndSection Section "Device" ### Available Driver options are:- ### Values: <i>: integer, <f>: float, <bool>: "True"/"False", ### <string>: "String", <freq>: "<f> Hz/kHz/MHz", ### <percent>: "<f>%" ### [arg]: arg optional #Option "DRI" # [<bool>] #Option "ColorKey" # <i> #Option "VideoKey" # <i> #Option "FallbackDebug" # [<bool>] #Option "Tiling" # [<bool>] #Option "LinearFramebuffer" # [<bool>] #Option "Shadow" # [<bool>] #Option "SwapbuffersWait" # [<bool>] #Option "TripleBuffer" # [<bool>] #Option "XvMC" # [<bool>] #Option "XvPreferOverlay" # [<bool>] #Option "DebugFlushBatches" # [<bool>] #Option "DebugFlushCaches" # [<bool>] #Option "DebugWait" # [<bool>] #Option "HotPlug" # [<bool>] #Option "RelaxedFencing" # [<bool>] Identifier "Card0" Driver "intel" BusID "PCI:0:2:0" EndSection Section "Screen" Identifier "Screen0" Device "Card0" Monitor "Monitor0" DefaultDepth 24 #SubSection "Display" # Viewport 0 0 # Depth 1 #EndSubSection #SubSection "Display" # Viewport 0 0 # Depth 4 #EndSubSection #SubSection "Display" # Viewport 0 0 # Depth 8 #EndSubSection #SubSection "Display" # Viewport 0 0 # Depth 15 #EndSubSection #SubSection "Display" # Viewport 0 0 # Depth 16 #EndSubSection SubSection "Display" Viewport 0 0 Depth 24 Modes "1024x768" "1920x1080" EndSubSection EndSection According to /var/log/Xorg.0.log, my settings aren't being applied. In fact, I wonder if the config file is even being read. [ 1209.083] (**) intel(0): Depth 24, (--) framebuffer bpp 32 [ 1209.084] (==) intel(0): RGB weight 888 [ 1209.084] (==) intel(0): Default visual is TrueColor [ 1209.084] (II) intel(0): Integrated Graphics Chipset: Intel(R) G41 [ 1209.084] (--) intel(0): Chipset: "G41" [ 1209.084] (**) intel(0): Relaxed fencing enabled [ 1209.084] (**) intel(0): Wait on SwapBuffers? enabled [ 1209.084] (**) intel(0): Triple buffering? enabled [ 1209.084] (**) intel(0): Framebuffer tiled [ 1209.084] (**) intel(0): Pixmaps tiled [ 1209.084] (**) intel(0): 3D buffers tiled [ 1209.084] (**) intel(0): SwapBuffers wait enabled [ 1209.084] (==) intel(0): video overlay key set to 0x101fe [ 1209.172] (II) intel(0): Output VGA1 using monitor section Monitor0 [ 1209.260] (II) intel(0): EDID for output VGA1 [ 1209.260] (II) intel(0): Printing probed modes for output VGA1 [ 1209.260] (II) intel(0): Modeline "1024x768"x60.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz) [ 1209.260] (II) intel(0): Modeline "800x600"x60.3 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz) [ 1209.260] (II) intel(0): Modeline "800x600"x56.2 36.00 800 824 896 1024 600 601 603 625 +hsync +vsync (35.2 kHz) [ 1209.260] (II) intel(0): Modeline "848x480"x60.0 33.75 848 864 976 1088 480 486 494 517 +hsync +vsync (31.0 kHz) [ 1209.260] (II) intel(0): Modeline "640x480"x59.9 25.18 640 656 752 800 480 489 492 525 -hsync -vsync (31.5 kHz) [ 1209.260] (II) intel(0): Output VGA1 connected [ 1209.260] (II) intel(0): Using user preference for initial modes [ 1209.260] (II) intel(0): Output VGA1 using initial mode 1024x768 [ 1209.260] (II) intel(0): Using default gamma of (1.0, 1.0, 1.0) unless otherwise stated. [ 1209.260] (II) intel(0): Kernel page flipping support detected, enabling [ 1209.260] (==) intel(0): DPI set to (96, 96)

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  • .Net Regular expression - how to do an exact match exclusion on a full string?

    - by Nathan Ridley
    I need a .Net regular expression that matches anything OTHER than the exact full string match specified. So basically: ^Index$ ... is the only exclusion I care about. Strings can start with, finish with or contain "Index", but not match exactly. My brain doesn't seem to be working today and I'm failing to work this one out. EDIT The answer MUST be via the pattern itself, as I am passing an argument to a third party library and do not have control over the process other than via the Regex pattern.

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  • Using Sandy 3D AS3, fill the viewport (exact fit) with multiple 3D objects.

    - by Andrew Mullins
    I'm stitching together an image using multiple instances of the sandy.primitive.Box. Each box is 96x91 while the viewport is 960x273 which should make for an exact fit if I layout the boxes in a perfect grid of 10x3. However, I can't seem to get the exact camera fieldOfView. I've tried a couple formulas (one for adjusting the "focal length" and one for adjusting the fov, directly). Both of these formulas produce a fov angle that is too narrow. // focal length (stage.stageHeight/2) / Math.tan(cam.fov / 2 * Math.PI / 180) // field of view 2 * Math.atan2( (stage.stageHeight/2), -cam.z ) * (180 / Math.PI) Another question about the same project: I need to adjust the perspective of each cube so that the image appears to be in 2D space (flat)... Any ideas on the best method for calculating such a "correction"?

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  • How do I fill in data using index, match, etc. in MS Excel?

    - by MorningHacker
    I have data formatted like so. 1, 2, 3, 4, null, null, null A, B, C, D, null, null, null 1, null, null, 4, 5, 6, 7 A, null, null, D, 8, 9, 10 I want to copy the data from row three into the missing "null" cells in row one, because there is a match on cell values one and four upon comparing row one and row three. So far I have the following. =INDEX(A2:AE346, MATCH(A351&F351&G351, A2:A346&F2:F346&G2:G346, 0), 2) Here is a spreadsheet with some sample data so you can test your formulas.

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  • Does RDNS for mail server have to match the mail server hostname exactly?

    - by threecheeseopera
    Typically when setting up a mail server, I create an rDNS record for the mail server IP to match the mail server hostname (ex: mail.example.com). Can I instead set the rDNS ptr to match the parent domain (e.g. example.com), if this server is being used for multiple purposes, and still send mail successfully (i.e. not be classified as spam b/c of mismatched rDNS)? Thanks! EDIT: The article at http://en.wikipedia.org/wiki/Forward_Confirmed_reverse_DNS seems to indicate that it might be more complicated than I had thought. For instance, 1) I did not know that you could have multiple PTR records for a given IP; 2) it appears that as long as each PTR record matches an A record, everything is good (basically nullifying my question). Would you agree?

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  • User Profile modified dates don't match....what is the difference?

    - by Sean Perkins
    This question came up while I was investigating a server that randomly restarted last night. I was looking through the event logs to see if someone manually restarted the system, but nothing was identified. I went to C:\Users and there wasn't a single profile that had a modify date in a couple of years. When went to User Profiles by way of the System Properties window, I found that a handful of accounts logged in as recently as today. Those same names match to C:\Users, but the modify dates do not match. Why is this?

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  • Optimisation <xsl:apply-templates/> for a set of tags.

    - by kalininew
    How it is possible to reduce this record? <xsl:template match="BR"> <br/> </xsl:template> <xsl:template match="B"> <strong><xsl:apply-templates /></strong> </xsl:template> <xsl:template match="STRONG"> <strong><xsl:apply-templates /></strong> </xsl:template> <xsl:template match="I"> <em><xsl:apply-templates /></em> </xsl:template> <xsl:template match="EM"> <em><xsl:apply-templates /></em> </xsl:template> <xsl:template match="OL"> <ol><xsl:apply-templates /></ol> </xsl:template> <xsl:template match="UL"> <ul><xsl:apply-templates /></ul> </xsl:template> <xsl:template match="LI"> <li><xsl:apply-templates /></li> </xsl:template> <xsl:template match="SUB"> <sub><xsl:apply-templates /></sub> </xsl:template> <xsl:template match="SUP"> <sup><xsl:apply-templates /></sup> </xsl:template> <xsl:template match="NOBR"> <nobr><xsl:apply-templates /></nobr> </xsl:template>

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  • I need to remove Java Script tags using regular expressions and JRegex

    - by piotr
    I need to remove all the Java Script tags and the content in between and style tags from the HTML code of web pages.So far I've come up with this expression : "(<[ \r\n\t]script([ \r\n\t]|){1,}([ \r\n\t]|.)?)|(<[ \r\n\t]noscript([ \r\n\t]|){1,}([ \r\n\t]|.)?)|(<[ \r\n\t]style([ \r\n\t]|){1,}([ \r\n\t]|.)?)" I use JRegex library to work with regular expressions. When I test it in any regex tester it works just fine, but once I run my program - it all crashes down with this error report: Exception in thread "Thread-0" java.lang.StackOverflowError at java.util.regex.Pattern$BranchConn.match(Unknown Source) at java.util.regex.Pattern$BmpCharProperty.match(Unknown Source) at java.util.regex.Pattern$Branch.match(Unknown Source) at java.util.regex.Pattern$GroupHead.match(Unknown Source) at java.util.regex.Pattern$LazyLoop.match(Unknown Source) at java.util.regex.Pattern$GroupTail.match(Unknown Source) at java.util.regex.Pattern$BranchConn.match(Unknown Source) at java.util.regex.Pattern$CharProperty.match(Unknown Source) at java.util.regex.Pattern$Branch.match(Unknown Source) at java.util.regex.Pattern$GroupHead.match(Unknown Source) at java.util.regex.Pattern$LazyLoop.match(Unknown Source) .................................. And it keeps on going forever. If anyone can give me an advice on this one - I'll be very grateful.

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  • Render multiple Form instances

    - by vorpyg
    I have a simple application where users are supposed to bet on outcome of a match. A match consists of two teams, a result and a stake. Matches with teams are created in the Django admin, and participants are to fill in result and stake. The form must be generated dynamically, based on the matches in the database. My idea is to have one (Django) Form instance for each match and pass these instances to the template. It works fine when I do it from django shell, but the instances aren't rendered when I load my view. The form looks like this: class SuggestionForm(forms.Form): def __init__(self, *args, **kwargs): try: match = kwargs.pop('match') except KeyError: pass super(SuggestionForm, self).__init__(*args, **kwargs) label = match self.fields['result'] = forms.ChoiceField(label=label, required=True, choices=CHOICES, widget=forms.RadioSelect()) self.fields['stake'] = forms.IntegerField(label='', required=True, max_value=50, min_value=10, initial=10) My (preliminary) view looks like this: def suggestion_form(request): matches = Match.objects.all() form_collection = {} for match in matches: f = SuggestionForm(request.POST or None, match=match) form_collection['match_%s' % match.id] = f return render_to_response('app/suggestion_form.html', { 'forms': form_collection, }, context_instance = RequestContext(request) ) My initial thought was that I could pass the form_collection to the template and the loop throught the collection like this, but id does not work: {% for form in forms %} {% for field in form %} {{ field }} {% endfor %} {% endfor %} (The output is actually the dict keys with added spaces in between each letter - I've no idea why…) It works if I only pass one Form instance to the template and only runs the inner loop. Suggestions are greatly appreciated.

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  • ActionController::RoutingError (No route matches {:action=>"show", :controller=>"users", :id=>nil}):

    - by Matt Bishop
    I have been trying to fix this routing error for a long time. I would appreciate any assistance! This error is preventing me from being able to authenticate. Here is what I am getting in my Heroku logs. app/controllers/authentications_controller.rb:12:in `create' ActionController::RoutingError (No route matches {:action=>"show", :controller=>"users", :id=>nil}) Here is the routes.rb file: Company::Application.routes.draw do resources :profile_individual resources :careers match 'careers' => 'careers#index' match 'about' => 'about#index' constraints(:subdomain => /^$|www/) do devise_for :users resources :authentications, :identities #, :beta_invitations resources :users do resources :invitations, :controller => 'UserInvitation' do post :upload, :on => :collection get :email_template, :on => :collection get :plaintext_template, :on => :collection get :facebook_invitation, :on => :collection end member do get :summary get :recruits get :friends_events get :events_near_me get :recent_activity get :impact get :campaigns end end resources :password_resets do get 'password_reset' => 'password_resets#show', :as => 'password_reset' end resources :events, :only => [:new, :index, :create] resources :organizations, :only => [:index, :create] resources :orders do post :ipn, :on => :member resource :payment do member do post :relay_response get :receipt end end resource :paypal_integration do member do get :authorize get :cancel post :finalize end end end match '/users/:id/impact/money/:d' => 'users#impact_money_graph', :constraints => {:d => /\d+{4}_\d+{2}-\d+{2}/}, :as => :user_impact_money match '/users/:id/impact/money' => 'users#impact_money_graph', :as => :user_impact_money match '/users/:id/impact/recruits/:d' => 'users#impact_recruits_graph', :constraints => {:d => /\d+{4}_\d+{2}-\d+{2}/}, :as => :user_impact_recruits match '/users/:id/impact/recruits' => 'users#impact_recruits_graph', :as => :user_impact_recruits match '/auth/failure' => 'authentications#failure' match '/auth/:provider/callback' => 'authentications#create' match '/auth/:provider/callback' => 'authentications#show', :controller => 'users', :as => :login match '/logout' => 'authentications#destroy', :as => :logout match '/login' => 'authentications#new', :as => :login match "/join_team/:id" => "team_members#join", :as => :join_team match "/rsvp/:id" => "rsvps#show", :as => :rsvp match "/signup" => 'authentications#signup', :as => :signup match "/beacon/:id.gif" => "email_beacons#show", :as => :email_beacon root :to => "homes#show" match '/corporate_giving' => "homes#corporate_giving" end constraints(Subdomain) do resource :organization, :path => "/", :only => [:edit, :update] do member do get :org_photos_videos get :org_recent_activity end end resources :events, :except => [:index] do post :publish, :on => :member resource :supporter_invite resource :team_management do post :mailer, :on => :member end resource :team_member do post :invite, :on => :member end resource :rsvp do put :make_order, :on => :collection get :make_order, :on => :collection end resources :invites do post :upload, :on => :collection end resources :ticket_tiers, :team_members end match "/events" => redirect("/") root :to => "organizations#show" end namespace :admin do resources :stats resources :organizations resources :campaigns do resources :rewards resources :contents put :header, :action => 'header_update' end resources :users do member do post :grant_access post :revoke_access end end resources :nonprofits do member do put :approve put :revoke end end end resources :campaigns do get :find_charities, :on => :collection get :how_many_charities, :on => :collection member do post :join get :join post :header, :action => 'header_creation' put :header, :action => 'header_update' end resources :rewards resources :contents resource :donations do resource :paypal_integration, :controller => 'donations' do member do get :authorize get :cancel post :finalize end end end end match '/campaigns/:id/graph/:d' => 'campaigns#graph', :constraints => {:d => /\d+{4}_\d+ {2}-\d+{2}/}, :as => :graph_campaign match '/campaigns/:id/graph' => 'campaigns#graph', :as => :graph_campaign resources :business_campaigns, :controller => 'campaigns' resources :businesses do put :logo, :on => :collection, :action => 'upload_logo' member do get :summary get :recruits get :friends_events get :events_near_me get :recent_activity get :impact get :campaigns end end resources :nonprofit_campaigns, :controller => 'campaigns' resources :nonprofits do put :logo, :on => :collection, :action => 'upload_logo' member do get :summary get :recruits get :friends_events get :events_near_me get :recent_activity get :impact get :campaigns get :supporting_campaigns end end resources :publicities match '/campaigns/:campaign_id/rewards/:id' => 'campaigns#reward', :via => :get match "/robots.txt" => "application#robots_txt" match "/beta_invitations" => redirect('/') resource :sitemap resources :referrals end Here is my authentications_controller.rb file class AuthenticationsController < ApplicationController skip_before_filter :require_beta_access before_filter :redirect_to_profile_if_logged_in, :only => [:create, :new] layout :resolve_layout def create omniauth = request.env["omniauth.auth"] authentication = Authentication.find_by_provider_and_uid(omniauth['provider'], omniauth['uid']) if authentication && authentication.user.present? sign_in(:user, authentication.user) redirect_to session[:redirect_to] || user_path(current_user, :subdomain => nil) elsif current_user current_user.authentications.create!(:provider => omniauth['provider'], :uid => omniauth['uid']) redirect_to session[:redirect_to] || user_path(current_user, :subdomain => nil) else user = User.new user.apply_omniauth(omniauth) logger.debug "=======================auth=============================" logger.debug session[:referrer_token] logger.debug "========================================================" if session[:referrer_token] publicity = Publicity.find_by_token(session[:referrer_token]) user.invited_by = publicity user.recruited_by = publicity end if user.save sign_in(user) unless session[:redirect_to] session[:referrer_token] = nil end redirect_to session[:redirect_to] || user_path(current_user, :subdomain => nil) #redirect_to session[:redirect_to] || campaigns_url(:tc => request.env['omniauth.params']['tc']) #tc is for AB testing else session[:omniauth] = omniauth.except('extra') redirect_to signup_path end end end def failure flash[:error] = "Please check your email and password and try again" redirect_to login_path end def destroy reset_session redirect_to root_path end def signup # end private def redirect_to_profile_if_logged_in redirect_to user_path(current_user.permalink) if current_user end def resolve_layout case action_name when "new", "signup" "authentication" else "selfcontained" end end end I am adding my appplication_controller.rb too: class ApplicationController < ActionController::Base #Wrote by George for beta users -before_filter :require_beta_access before_filter :save_referrer_token protect_from_forgery helper_method :organization_admin?, :team_member?, :profile_url, :current_profile def set_headers # Set our headers here end def save_referrer_token #session.delete(:referrer_token) if params[:ref] publicity = Publicity.find_by_token(params[:ref]) logger.debug "========================================================" logger.debug current_profile.nil? logger.debug publicity.creator logger.debug current_profile logger.debug current_profile != publicity.creator session[:referrer_token] = params[:ref] if current_profile.nil? or publicity.creator != current_profile logger.debug session[:referrer_token] logger.debug "========================================================" end end def robots_txt robots = File.read(Rails.root + "public/robots.#{Rails.env}.txt") render :text => robots, :layout => false, :content_type => "text/plain" end def load_organization @organization = Organization.find_by_permalink(request.subdomain) raise ActiveRecord::RecordNotFound if @organization.nil? end def require_user unless current_user session[:redirect_to] = request.url redirect_to login_url(:host => request.domain) end end def require_beta_access if !current_user redirect_to root_url(:host => request.domain) elsif !current_user.beta_access? redirect_to new_beta_invitation_url(:host => request.domain) end end def require_organization_admin unless organization_admin? redirect_to root_url(:subdomain => @organization.permalink) end end def team_member? if current_user && @event.team_memberships.where(:user_id => current_user.id).count != 0 true end end def organization_admin? if current_user && current_user.beta_access? && @organization && @organization.memberships.where(:user_id => current_user.id, :role => 'admin').count != 0 true end end def profile_url(profile, opt = nil) if profile == current_user user_url(profile, :host => opt[:host]) elsif profile.is_a? BusinessProfile business_url(profile) elsif profile.is_a? NonprofitProfile nonprofit_url(profile) end end def set_current_profile(profile) session[:current_profile] = profile end def current_user @current_user ||= User.find_by_auth_token!(cookies[:auth_token]) if cookies[:auth_token] end def current_profile #if session session[:current_profile] || current_user #else # nil #end end IGIVEMORE_HTML5_OPTIOINS = { :style => 'z-index: 0;',:width => '290', :height => '200', :frameborder => '0', :url_params => {:wmode=>"opaque"} } def campaign_header_body(camp, opt = IGIVEMORE_HTML5_OPTIOINS) if camp.header_type == Campaign::HEADER_YOUTUBE youtube_html5(camp.header_url, opt).html_safe elsif camp.header_type == Campaign::HEADER_IMAGE "<img src=\"#{camp.header_url}\" width=\"#{opt[:width]}\" height=\"#{opt[:height]}\"/>'".html_safe else "Unsupported Type!!" end end def youtube_html5(url, opt) begin video = YouTubeIt::Client.new.video_by(url) video.embed_html5(opt).gsub(/http:\/\//,"https://") rescue => e "<div style='color:red; width:290px; height:100px; padding-top:100px'>Given Video URL has problem.</div>" end end end

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