1. Technical Field
The present invention relates generally to tools for internationalization of software. More particularly, the present invention relates to an improved method, apparatus, and computer program for performing language translation in computer software.
2. Description of Related Art
Java is an object-oriented, compiled, multi-threaded computer language that generates platform-independent executable files.
Java is object-oriented. This means, in the simplest terms, that it allows for the association of member functions or “methods” within data structures. Indeed, all Java programs are made up solely of data structure types known as “classes,” where classes contain both data fields and methods.
Classes may “inherit” characteristics of other classes. When a “descendant” class inherits from another “ancestral” class, it inherits all of the data fields and methods of the ancestral class. In addition, a descendent class may provide its own methods to supplement or take the place of ancestral class methods.
Java is compiled. That means that before a Java program (written as source code) can be executed, it must be processed by a compiler to make an executable form of the program. Executable Java programs are stored in “.class” files, with each “.class” file containing executable object code for a single Java class.
Java is multi-threaded. This means that a single Java program can have several sequences of code executing concurrently. Each of these sequences is known as a thread. Multi-threaded program languages, such as Java, are very useful when writing software such as, for instance, communication software, where it is helpful to allow the software to perform other tasks while waiting for input.
Java produces platform-independent executables. When a Java program is compiled to produce “.class” files, those “.class” files are capable of being executed on any platform having a Java runtime environment. A Java runtime environment is a piece of software that allows a computer to executes Java “.class” files. Java runtime environments are available for many, if not most, commonly used computer platforms today.
There are essentially two kinds of Java runtime environments: interpreters and just-in-time compilers. Interpreters directly interpret the binary code contained in “.class” files and execute instructions corresponding to that binary code as the interpretation process is carried out. Just-in-time compilers, on the other hand, first translate the binary code into native instructions, then execute the native instructions. Native instructions are instructions that are designed to be executed directly by the computer's hardware.
Java's “write once, run anywhere” philosophy extends not only into the realm of platform independence, but also to that of software internationalization, where a principle of “write once, run anywhere in the world” applies. Java was among the first computer language standards to embrace Unicode, a sixteen-bit character set standard that includes not only the twenty-six letters of modern English, but a variety of characters and accented characters used in other languages. The sixteen-bit standard allows a sufficient range of characters (65,536) not only for the inclusion of multiple alphabets, such as Cyrillic and Hebrew, but also for the character sets of languages such as Chinese and Japanese. Chinese does not use an alphabet but relies on the use of thousands of different ideograms; Japanese uses two alphabets in addition to a set of approximately two thousand ideograms.
Java also provides a facility for internationalization known as “Resource Bundles.” Resource bundles are files that store the text messages displayed by a Java program. When a Java program uses resource bundles, it loads its text messages from the resource bundle to be displayed to a user.
By separating text messages from the program code that displays them, it becomes easier to generate versions of a program that display in different languages. To make a German translation of an English original to a program, for instance, one need only create a German resource bundle to be interchanged with the English one. Thus, keeping to Java's “write once, run anywhere” philosophy, the Java program code need only be written and compiled once.
The task of translating a piece of software from one language to another, then, consists of translating the text contained in a resource bundle to produce a replacement resource bundle containing the translation text. Although this scheme is simple from a theoretical and technological standpoint, in practice the task of translating software is more complicated.
It is generally impractical for a software-producing organization to employ a staff of translators for every language at every location in the organization where software is produced. A more practical approach, and one that is generally taken within the industry, is assign the responsibility for software translation to one or more translators in remote locations (often in other countries). In theory, a simple approach to software translation would be to send the resource bundles associated with a product to the translator, have the translator make new resource bundles containing translated text, then have the translator return the new resource bundles.
This approach is error prone, however. The translator, having only the text of the program to look at, is at a loss as to the context in which the text is used. When a translator is given no context in which to understand the text, the translator must make a guess as to which meaning is intended and choose a translation that matches the meaning. For instance, the English word “stop” may be translated into German as “halten,” “anhalten,” “aufhalten,” “aufhören,” “abstellen,” “einstellen,” or “stehenbleiben,” depending on the context. The best a translator can do, having only the word “stop” to translate into German, is to pick a likely candidate, for instance “halten.” Then, at some later time, the translator can view the completed translated software title to check the context.
Because translators are not usually technically trained or familiar with the technical details of the software they are translating, however, viewing the completed title may be unduly difficult for the translator. Many software products today, particularly those intended to be operated over a network, are difficult to set up and operate, particularly for one with little technical background. It is often impractical for a translator working in a remote location from the software developers to have a working copy of the software installed at the translator's location. When this is the case, often the only viable option is to have the translator travel to the software developers' location and “proofread” the translated software under the direction of the developers.
Another problem that a translator may experience is that the translator may not know enough about operating the software to be able to observe all of the necessary textual messages within the context of the program. In such cases, the developers' assistance is also needed to ensure that all messages are displayed in context for translation.
What is needed then, is a method of translating the text of a software product that reduces the necessity of the translator working face-to-face with software developers.
The present invention provides techniques for translating the text displayed by a computer program into another language for international use of the program. These techniques simplify the translation process and reduce the necessity for active software developer or programmer involvement with the translation process.
In one embodiment of the invention, data regarding the context in which text is presented to a user is collected from an executing program. This data and the text itself can be forwarded to a translator, who then uses a context interpreter to recreate the presentation of the text in context, without resorting to the use of the original program. The translator can then edit the resource bundle while having its contents displayed in context on the screen Thus, an accurate translation may be made by a translator without the translator's having a copy of the program installed.
In another embodiment of the invention, a sequence of system events corresponding to user actions during an execution session of a program is recorded. This sequence can be forwarded, along with an executable of the program, to a translator. The translator can then use a scripting shell to “playback” the execution session of the program. During “playback,” the translator may pause the execution of the program and make editorial changes to text on screen using what is known as an “introspective editor.” Thus, a translator may make a translation of a software product without having to know how to operate the software product and without having a software developer or programmer present to demonstrate the software product.
The novel features believed characteristic of the invention are set forth in the appended claims. The invention itself, however, as well as a preferred mode of use, further objectives and advantages thereof, will best be understood by reference to the following detailed description of illustrative embodiments when read in conjunction with the accompanying drawings, wherein:
With reference now to the figures, and in particular with reference to
As
Resource bundle 210B, however, only contains the German text. It does not contain any information about how the text is used within the program, its context.
Program 302 executes in a Java runtime environment on a computer system or other data processing system, such as data processing system 100 in FIG. 1. Monitor process 304 monitors the execution of program 302 to detect when program 302 generates graphical user interface (GUI) features, such as windows, dialog boxes, or menus. Monitor process 304 may execute as a separate executable process from program 302 or as a thread within program 302. Alternatively, monitor process 304 need not be within its own thread or process of execution, but might be implemented as simply a set of functions called by program 302 whenever a GUI feature is generated.
Each time program 302 generates a GUI feature, monitor process 304 generates a context module containing instructions for rendering the GUI feature. This context module is added to a collection of context modules 306. Context modules 306 are then combined with program 302's resource bundles 308 as input to a context interpreter 310, which may be executed on a separate computer and at any time after context modules 306 are generated. Context interpreter 310 uses context modules 306 and resource bundles 308 to reproduce the GUI features originally generated by program 302. The reproduced GUI features are then displayed to a translator on a display device 312.
Context interpreter 310 contains an introspective editor. The introspective editor is a library, that when compiled into an executable program, allows a user to edit GUI features while the program is executing.
When a program compiled with an introspective editor is executing and the user wishes to change the text displayed by the program, the user issues a special keystroke while simultaneously clicking the GUI feature to edit with the mouse. This action brings up a dialog box such as dialog box 604 in
The translator can thus provide input 314 to context interpreter 310 to translate the text of the displayed GUI features. Once the translator has finished translating the GUI features, context interpreter 310 produces new resource bundles 316 containing the translation text.
Constructor function 402 is called when an instance of class “GUIFeature2” 400 is created. Constructor function 402 takes arguments 403 as input. Arguments 403 are the same arguments that would be passed into the constructor function of ancestral class “GUIFeature.” Arguments 403 contain the contextual information necessary to render the GUI feature represented by class “GUIFeature.”
Line 404 contains a call to function “Monitor.log_GUIFeature2,” which takes arguments 403. Function “Monitor.log_GUIFeature2” creates a context module corresponding to the GUI feature being created by constructor function 402 and inserts the contextual data in arguments 403 into the context module. Finally, on line 406, the constructor function of the ancestral class “GUIFeature” is called using the Java keyword “super.” Thus, by creating an instance of class “GUIFeature2” 400, the GUI feature of class “GUIFeature” is generated and the contextual data necessary to generate the GUI feature is stored in a context module.
Dialog box 604 contains fields for editing resource bundle-related information associated with button 602. These fields include the new (replacement) text 606, the particular resource bundle used 608, the resource key 610 for button 602 (which is an internal identification for the GUI feature being edited), and the previous text 612. After editing the fields of dialog box 604 to produce a translation of button 602, the user may use the mouse or keyboard to actuate button 614 to save the translation or button 616 to discard the translation.
Journal process 702 may execute as a separate executable process from program 700 or as a thread within program 700. In such cases, journal process 702 will generally monitor a system queue (associated with the operating system of the computer) to detect system events. Alternatively, journal process 702 need not be within its own thread or process of execution, but might be implemented as simply a set of functions called by program 700 whenever a system event is handled by program 700. GUI-based programs generally include an event handler function for receiving system events. System events may be in an event sequence whenever the event handler function executes.
Each time program 700 handles a system event, journal process 702 logs the system event in an event sequence 704. Event sequence 704, then, becomes a transcript of a user's actions during an execution session of program 700.
Event sequence 704 can then be fed as input into a scripting shell 706. Scripting shell 706 executes an executable 708 of program 700 containing an introspective editor, as described in FIG. 6. Thus, whereas in the embodiment described in
Scripting shell 706 reproduces the same system events (keystrokes, mouse clicks, etc.) that were performed when program 700 was originally executed and event sequence 704 was generated. Scripting shells that reproduce a sequence of system events are well known in the art and are often used to test and debug software. Thus, when scripting shell 706 generates system events while executing executable 708, scripting shell 706 makes executable 708 perform the same tasks and display the same GUI features that program 700 did when originally executed.
Output from executable 708 is displayed on a display device 710. While executable 608 is executing, a user may use an input device 712 such as a mouse or keyboard to direct scripting shell 706 to halt or continue sending system events to executable 708. While scripting shell 706 is halted, the user may use the introspective editor to edit the text in resource bundles 714 associated with program 700, to produce new resource bundles 716 containing the new text.
Screen 804 shows what the user's screen looks like when program 702 or executable 708 is first executed. After scripting shell 706 (from
Similarly, after scripting shell 706 generates event 810, the next event in event sequence 704, screen 808 is replaced with screen 812. This process can continue until scripting shell 706 generates the last event in event sequence 704.
One of ordinary skill in the art will appreciate that although the embodiments described herein make use of the Java programming language and the resource bundle facility in that language, the techniques described herein are applicable to a variety of other programming environments as well. For instance, it is a common practice to use “catalog files” to store text, regardless of the programming language used. Catalog files are files that, like resource bundles, store a series of text messages to be displayed by a program and are interchangeable with other catalog files in different (human) languages.
One of ordinary skill in the art will also appreciate that in some computing environments, such as Microsoft Windows for example, it is common practice to store GUI rendering information (and text as well) in separate files from program source code. These files are called “resource files.” In an alternative embodiment of the present invention, resource files may be used in place of context modules, resource bundles, or both, for editing purposes.
Further, one of ordinary skill in the art will recognize that such text to be viewed in context and translated need not be confined to text displayed within a graphical user interface (GUI). Rather, the text translated using the present invention could include text displayed in a non-graphical environment, or text to be printed or otherwise conveyed to a user. Regardless of whether the text is displayed as part of a GUI, contextual data, such as how the text is arranged on a screen or printed on a page is still present and can still be recorded and used within an embodiment of the present invention.
Moreover, the present invention need not be limited to the translation of text. The present invention is applicable to the editing of computer program text in general. An editor, for instance, could use an embodiment of the present invention to correct grammar and punctuation mistakes in a program's text, rather than make a translation.
It is important to note that while the present invention has been described in the context of a fully functioning data processing system, those of ordinary skill in the art will appreciate that the processes of the present invention are capable of being distributed in the form of a computer readable medium of instructions and a variety of forms and that the present invention applies equally regardless of the particular type of signal bearing media actually used to carry out the distribution. Examples of computer readable media include recordable-type media, such as a floppy disk, a hard disk drive, a RAM, CD-ROMs, DVD-ROMs, and transmission-type media, such as digital and analog communications links, wired or wireless communications links using transmission forms, such as, for example, radio frequency and light wave transmissions. The computer readable media may take the form of coded formats that are decoded for actual use in a particular data processing system.
The description of the present invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention, the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
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