* sale, use or other dealings in this Software without prior written *
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- * @Id: term.5,v 1.69 2023/12/23 16:08:25 tom Exp @
+ * @Id: term.5,v 1.70 2023/12/30 21:36:32 tom Exp @
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-<TITLE>term 5 2023-12-23 ncurses 6.4 File formats</TITLE>
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-<H1 class="no-header">term 5 2023-12-23 ncurses 6.4 File formats</H1>
+<H1 class="no-header">term 5 2023-12-30 ncurses 6.4 File formats</H1>
<PRE>
<STRONG><A HREF="term.5.html">term(5)</A></STRONG> File formats <STRONG><A HREF="term.5.html">term(5)</A></STRONG>
b) <EM>terminal</EM> <EM>names</EM>,
- c) <EM>boolean</EM> <EM>flags</EM>,
+ c) <EM>Boolean</EM> <EM>flags</EM>,
d) <EM>numbers</EM>,
(2) the size, in bytes, of the <EM>terminal</EM> <EM>names</EM> section;
- (3) the number of bytes in the <EM>boolean</EM> <EM>flags</EM> section;
+ (3) the number of bytes in the <EM>Boolean</EM> <EM>flags</EM> section;
(4) the number of short integers in the <EM>numbers</EM> section;
(6) the size, in bytes, of the <EM>string</EM> <EM>table</EM>.
- The capabilities in the <EM>boolean</EM> <EM>flags</EM>, <EM>numbers</EM>, and <EM>strings</EM> sections
+ The capabilities in the <EM>Boolean</EM> <EM>flags</EM>, <EM>numbers</EM>, and <EM>strings</EM> sections
are in the same order as the file <term.h>.
Short integers are signed, in the range -32768 to 32767. They are
the corresponding table.
The integer value -1 is represented by two bytes 0377, 0377.
- Absent boolean values are represented by the byte 0 (false).
+ Absent Boolean values are represented by the byte 0 (false).
<STRONG>o</STRONG> If a capability has been canceled from this terminal, tic stores a
-2 in the corresponding table.
The integer value -2 is represented by two bytes 0377, 0376.
- The boolean value -2 is represented by the byte 0376.
+ The Boolean value -2 is represented by the byte 0376.
<STRONG>o</STRONG> Other negative values are illegal.
the terminal, separated by the "|" character. The <EM>terminal</EM> <EM>names</EM>
section is terminated with an ASCII NUL character.
- The <EM>boolean</EM> <EM>flags</EM> section has one byte for each flag. Boolean
+ The <EM>Boolean</EM> <EM>flags</EM> section has one byte for each flag. Boolean
capabilities are either 1 or 0 (true or false) according to whether the
terminal supports the given capability or not.
- Between the <EM>boolean</EM> <EM>flags</EM> section and the <EM>number</EM> section, a null byte
+ Between the <EM>Boolean</EM> <EM>flags</EM> section and the <EM>number</EM> section, a null byte
will be inserted, if necessary, to ensure that the <EM>number</EM> section
begins on an even byte This is a relic of the PDP-11's word-addressed
architecture, originally designed to avoid traps induced by addressing
a word on an odd byte boundary. All short integers are aligned on a
short word boundary.
- The <EM>numbers</EM> section is similar to the <EM>boolean</EM> <EM>flags</EM> section. Each
+ The <EM>numbers</EM> section is similar to the <EM>Boolean</EM> <EM>flags</EM> section. Each
capability takes up two bytes, and is stored as a little-endian short
integer.
The previous section describes the conventional terminfo binary format.
With some minor variations of the offsets (see PORTABILITY), the same
binary format is used in all modern Unix systems. Each system uses a
- predefined set of boolean, number or string capabilities.
+ predefined set of Boolean, number or string capabilities.
The <EM>ncurses</EM> libraries and applications support extended terminfo binary
format, allowing users to define capabilities which are loaded at
First, it reads the extended header (5 short integers):
- (1) count of extended boolean capabilities
+ (1) count of extended Boolean capabilities
(2) count of extended numeric capabilities
The extended string table contains values for string capabilities.
After the end of these values, it contains the names for each of the
- extended capabilities in order, e.g., booleans, then numbers and
+ extended capabilities in order, e.g., Booleans, then numbers and
finally strings.
By storing terminal descriptions in this way, <EM>ncurses</EM> is able to
(resulting in missing entries). The routine <STRONG>setupterm</STRONG> must be prepared
for both possibilities - this is why the numbers and sizes are
included. Also, new capabilities must always be added at the end of
- the lists of boolean, number, and string capabilities.
+ the lists of Boolean, number, and string capabilities.
</PRE><H3><a name="h3-Binary-Format">Binary Format</a></H3><PRE>
-ncurses 6.4 2023-12-
23 <STRONG><A HREF="term.5.html">term(5)</A></STRONG>
+ncurses 6.4 2023-12-
30 <STRONG><A HREF="term.5.html">term(5)</A></STRONG>
</PRE>
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