Hindi sessions run on the Windows 2000 and Windows XP operating systems. Select the Indic language group while installing Windows. After installation, you can change the language group to Indic:
The following browsers are supported for Hindi enablement of Host On-Demand:
The IBM Java 2 Plug-in (JRE1.3) and Sun Java 2 Plug-in (JRE1.4) are supported for Hindi enablement of Host On-Demand.
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Sun Java 2 Plug-in (JRE1.3) is not currently supported because the plug-in is not composing Hindi Unicode characters. |
To use the IBM Java 2 Plug-in (JRE1.3) with supported versions of Netscape and Internet Explorer, do the following:
To use the Sun Java 2 Plug-in (JRE1.4) with supported versions of Netscape and Internet Explorer, do the following:
Host On-Demand uses Monospaced Devanagari font for a Hindi session on Windows 2000 and XP. To install Monospaced Devanagari font on the client:
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The key font alias may not exist in your system. Use the following steps to create a font alias:
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To configure a workstation for Hindi, set the appropriate code page:
To modify a workstation configuration for Hindi:
To switch the keyboard between Hindi and Latin, use the following key combinations:
| Default key mapping | Language |
|---|---|
| Ctrl+N | Hindi |
| Ctrl+L | Latin |
If the keyboard is in Hindi language shift, the indicator HI appears on the Operator Information Area (OIA).
Cut, copy and paste are supported on Hindi display mode. You can copy and cut text using the keyboard. When using keyboard functions (Shift+arrow key) for marking text, the trimming rectangle appears at the Hindi cursor position.
For Hindi, when you transfer files between the PC and the host, select 1137 Hindi for the Host Code Page.
Because Hindi language is supported only in Unicode, the ASCII transfer option does not apply to Hindi file transfer. Use the Unicode transfer option to transfer a file in TEXT mode. When the session has the Hindi code page, the transfer option Unicode is the default for TEXT mode transfer.
Transfer PC files in Unicode format. If you do not use Unicode format to transfer a PC file, the following error message can appear:
ECL0146 Error while reading from the local file system.
A cluster is a single character on the screen that internally might be represented by more than one character. Two or more individual characters in Hindi can combine to form or compose a glyph or cluster. The number of characters in a cluster varies.
In order to find the number of characters in a cluster, Unicode Ligation and ISCII rules will be used. The 15 Unicode Ligation rules defined by the Unicode Consortium can be found in the book The Unicode Standard Version 3.0 by the Unicode Consortium, published by Addison Wesley Publishing Company.
Other than the Unicode rules, Indian Script Code for Information Interchange(ISCII) rules also identify a cluster. The ISCII rules are as follows:
Rule 1: Letter I(\u0907) + Nukta(\u093C)forms Letter Vocalic L(\u090C)
Rule 2: Vowel Sign Vocalic R(\u0943) + Sign Nukta(\u093c) forms Vowel Sign Vocalic Rr(\u0944)
Rule 3: Candrabindu(\u0901) + Sign Nukta(\u093c) forms Om(\u0950)
Rule 4: Letter Vocalic R(\u090b) + Sign Nukta(\u093c) forms Letter Vocalic Rr(\u0960)
Rule 5: Letter Ii(\u0908) + Sign Nukta(\u093c) forms Letter Vocalic LI(\u0961)
Rule 6: Vowel Sign I(\u093f) + Sign Nukta(\u093c) forms Vowel Sign VocalicL(\u0962)
Rule 7: Vowel Sign Ii(\u0940) + Sign Nukta(\u093c) forms Vowel Sign Vocalic LI(\u0963)
Rule 8: Danda(\u0964) + Sign Nukta(\u093c) forms Sign Avagraha(\u093d)
Rule 9: Consonant+Halant(\u094d)+Halant(\u094d)+Consonant forms Consonant + Halant(\u094d) + ZWNJ + Consonant
Rule 10: Consonant+Halant(\u094d)+Nukta(\u093c)+Consonant forms Consonant + Halant(\u094d) + ZWJ + Consonant
Also based on the ISCII rules, the Host On-Demand Hindi enablement allows a maximum of five consonants to form a cluster. If a cluster contains more than five consonants, only the first five consonants are treated as a cluster. The remaining characters form a separate cluster based on the five-consonant rule.
The arrow, Backspace, Delete, and Insert keys have some special behaviors in Hindi sessions because of the formation of clusters.
Some of the terms used to describe these behaviors include:
A single glyph or cluster can correspond to a single character or to a number of characters. To understand clusters and their formation, refer to Understanding Hindi clusters.
To move the cursor from one glyph or cluster to another on the screen using the left and right arrow keys, position the cursor at the beginning or end of a cluster, depending on the key pressed. These positions are known as boundary positions. Cluster support is available for Hindi for the first time in Host On-Demand, Version 6.0.
You type three characters: Devanagari letter KA, Devanagari sign Virama, and Devanagari letter SSHA. These three characters form a single glyph Devanagari letter K.SSHA. If the cursor is positioned after this glyph and you want to move the cursor to the character before the Devanagari letter K.SSHA, you need to press the left arrow only once.
Place the cursor at the end of a cluster and press the Backspace key once to remove only a single Unicode character (a code point), not the entire cluster.
You type three characters: Devanagari letter KA, Devanagari sign Virama, and Devanagari letter SSHA. These three characters form a single glyph Devanagari letter K.SSHA. Place the cursor at the end of the cluster and press the backspace key once to delete the Devanagari letter SSHA, not the entire cluster.
Place the cursor on a cluster and press the Delete key to delete the entire cluster instead of a single Unicode character (a code point).
Enter the Devanagari letter KA followed Devanagari vowel sign I. The glyph corresponding to Devanagari vowel sign I is displayed before the glyph corresponding to Devanagari Letter KA. When you press the Delete key, the Hindi cluster formed by the combination of Devanagari vowel sign I and Devanagari letter KA is deleted from the screen.
In another example, type three characters: Devanagari letter KA, Devanagari sign Virama, and Devanagari letter SSHA. These three characters form a single glyph Devanagari letter K.SSHA. Reach the glyph Devanagari letter K.SSHA by pressing the right arrow key and when the cursor reaches Devanagari letter K.SSHA, press the Delete key. The entire Devanagari cluster K.SSHA is deleted.
The Insert key enables inserting characters between clusters but not within clusters.
YType three characters: Devanagari letter KA, Devanagari sign Virama, and Devanagari letter SSHA. These three characters form a single glyph Devanagari letter K.SSHA. You can either insert characters before the entire Devanagari cluster K.SSHA or after it, but you cannot insert characters within the cluster.
To support Hindi sessions with an IBM Java 2 plug-in, use the Windows Plug-in, Java 2 Technology Edition, Version 1.3.1 SP2, which is shipped with Host On-Demand 7.