X-Git-Url: http://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=doc%2Fhtml%2Fman%2Fterm.5.html;fp=doc%2Fhtml%2Fman%2Fterm.5.html;h=eaa8b4a232636aecb9c48c12acf95d0c5620a232;hp=60a9d223df7a406bf5347d428bb9fcc54a8c5f3e;hb=5925150381bb42a4d8c7116d62c348a7b84309f3;hpb=42259b594b5dabd37fe2bc294051d2db82e873a2
diff --git a/doc/html/man/term.5.html b/doc/html/man/term.5.html
index 60a9d223..eaa8b4a2 100644
--- a/doc/html/man/term.5.html
+++ b/doc/html/man/term.5.html
@@ -58,37 +58,38 @@
Compiled terminfo descriptions are placed under the directory
- /usr/share/terminfo. Two configurations are supported (when building
- the ncurses libraries):
+ /usr/local/ncurses/lib/terminfo. Two configurations are supported
+ (when building the ncurses libraries):
directory tree
A two-level scheme is used to avoid a linear search of a huge UNIX
- system directory: /usr/share/terminfo/c/name where name is the
- name of the terminal, and c is the first character of name. Thus,
- act4 can be found in the file /usr/share/terminfo/a/act4. Syn-
- onyms for the same terminal are implemented by multiple links to
- the same compiled file.
+ system directory: /usr/local/ncurses/lib/terminfo/c/name where
+ name is the name of the terminal, and c is the first character of
+ name. Thus, act4 can be found in the file
+ /usr/local/ncurses/lib/terminfo/a/act4. Synonyms for the same
+ terminal are implemented by multiple links to the same compiled
+ file.
hashed database
Using Berkeley database, two types of records are stored: the ter-
- minfo data in the same format as stored in a directory tree with
- the terminfo's primary name as a key, and records containing only
+ minfo data in the same format as stored in a directory tree with
+ the terminfo's primary name as a key, and records containing only
aliases pointing to the primary name.
- If built to write hashed databases, ncurses can still read ter-
- minfo databases organized as a directory tree, but cannot write
- entries into the directory tree. It can write (or rewrite)
+ If built to write hashed databases, ncurses can still read ter-
+ minfo databases organized as a directory tree, but cannot write
+ entries into the directory tree. It can write (or rewrite)
entries in the hashed database.
- ncurses distinguishes the two cases in the TERMINFO and TER-
- MINFO_DIRS environment variable by assuming a directory tree for
+ ncurses distinguishes the two cases in the TERMINFO and TER-
+ MINFO_DIRS environment variable by assuming a directory tree for
entries that correspond to an existing directory, and hashed data-
base otherwise.
The format has been chosen so that it will be the same on all hardware.
- An 8 or more bit byte is assumed, but no assumptions about byte order-
+ An 8 or more bit byte is assumed, but no assumptions about byte order-
ing or sign extension are made.
The compiled file is created with the tic program, and read by the rou-
@@ -106,7 +107,7 @@
f) string table.
- The header section begins the file. This section contains six short
+ The header section begins the file. This section contains six short
integers in the format described below. These integers are
(1) the magic number (octal 0432);
@@ -121,32 +122,32 @@
(6) the size, in bytes, of the string table.
- The capabilities in the boolean flags, numbers, and strings sections
+ The capabilities in the boolean flags, numbers, and strings sections
are in the same order as the file <term.h>.
- Short integers are signed, in the range -32768 to 32767. They are
- stored as two 8-bit bytes. The first byte contains the least signifi-
+ Short integers are signed, in the range -32768 to 32767. They are
+ stored as two 8-bit bytes. The first byte contains the least signifi-
cant 8 bits of the value, and the second byte contains the most signif-
icant 8 bits. (Thus, the value represented is 256*second+first.) This
format corresponds to the hardware of the VAX and PDP-11 (that is, lit-
- tle-endian machines). Machines where this does not correspond to the
- hardware must read the integers as two bytes and compute the little-
+ tle-endian machines). Machines where this does not correspond to the
+ hardware must read the integers as two bytes and compute the little-
endian value.
Numbers in a terminal description, whether they are entries in the num-
- bers or strings table, are positive integers. Boolean flags are
- treated as positive one-byte integers. In each case, those positive
- integers represent a terminal capability. The terminal compiler tic
- uses negative integers to handle the cases where a capability is not
+ bers or strings table, are positive integers. Boolean flags are
+ treated as positive one-byte integers. In each case, those positive
+ integers represent a terminal capability. The terminal compiler tic
+ uses negative integers to handle the cases where a capability is not
available:
- o If a capability is absent from this terminal, tic stores a -1 in
+ o If a capability is absent from this terminal, tic stores a -1 in
the corresponding table.
The integer value -1 is represented by two bytes 0377, 0377.
Absent boolean values are represented by the byte 0 (false).
- o If a capability has been canceled from this terminal, tic stores a
+ o 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.
@@ -154,49 +155,49 @@
o Other negative values are illegal.
- The terminal names section comes after the header. It contains the
- first line of the terminfo description, listing the various names for
- the terminal, separated by the "|" character. The terminal names sec-
+ The terminal names section comes after the header. It contains the
+ first line of the terminfo description, listing the various names for
+ the terminal, separated by the "|" character. The terminal names sec-
tion is terminated with an ASCII NUL character.
The boolean flags section has one byte for each flag. Boolean capabil-
ities are either 1 or 0 (true or false) according to whether the termi-
nal supports the given capability or not.
- Between the boolean flags section and the number section, a null byte
- will be inserted, if necessary, to ensure that the number 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
+ Between the boolean flags section and the number section, a null byte
+ will be inserted, if necessary, to ensure that the number 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 numbers section is similar to the boolean flags section. Each
- capability takes up two bytes, and is stored as a little-endian short
+ The numbers section is similar to the boolean flags section. Each
+ capability takes up two bytes, and is stored as a little-endian short
integer.
- The strings section is also similar. Each capability is stored as a
+ The strings section is also similar. Each capability is stored as a
short integer. The capability value is an index into the string table.
The string table is the last section. It contains all of the values of
- string capabilities referenced in the strings section. Each string is
+ string capabilities referenced in the strings section. Each string is
null-terminated. Special characters in ^X or \c notation are stored in
- their interpreted form, not the printing representation. Padding
- information $<nn> and parameter information %x are stored intact in
+ their interpreted form, not the printing representation. Padding
+ information $<nn> and parameter information %x are stored intact in
uninterpreted form.
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
+ 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.
The ncurses libraries and applications support extended terminfo binary
- format, allowing users to define capabilities which are loaded at run-
+ format, allowing users to define capabilities which are loaded at run-
time. This extension is made possible by using the fact that the other
- implementations stop reading the terminfo data when they have reached
- the end of the size given in the header. ncurses checks the size, and
- if it exceeds that due to the predefined data, continues to parse
+ implementations stop reading the terminfo data when they have reached
+ the end of the size given in the header. ncurses checks the size, and
+ if it exceeds that due to the predefined data, continues to parse
according to its own scheme.
First, it reads the extended header (5 short integers):
@@ -211,96 +212,96 @@
(5) size of the extended string table in bytes
- The count- and size-values for the extended string table include the
+ The count- and size-values for the extended string table include the
extended capability names as well as extended capability values.
Using the counts and sizes, ncurses allocates arrays and reads data for
the extended capabilities in the same order as the header information.
- 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
+ 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
finally strings.
- Applications which manipulate terminal data can use the definitions
- described in term_variables(3x) which associate the long capability
+ Applications which manipulate terminal data can use the definitions
+ described in term_variables(3x) which associate the long capability
names with members of a TERMTYPE structure.
On occasion, 16-bit signed integers are not large enough. With ncurses
- 6.1, a new format was introduced by making a few changes to the legacy
+ 6.1, a new format was introduced by making a few changes to the legacy
format:
o a different magic number (octal 01036)
- o changing the type for the number array from signed 16-bit integers
+ o changing the type for the number array from signed 16-bit integers
to signed 32-bit integers.
- To maintain compatibility, the library presents the same data struc-
+ To maintain compatibility, the library presents the same data struc-
tures to direct users of the TERMTYPE structure as in previous formats.
- However, that cannot provide callers with the extended numbers. The
- library uses a similar but hidden data structure TERMTYPE2 to provide
+ However, that cannot provide callers with the extended numbers. The
+ library uses a similar but hidden data structure TERMTYPE2 to provide
data for the terminfo functions.
- Note that it is possible for setupterm to expect a different set of
- capabilities than are actually present in the file. Either the data-
+ Note that it is possible for setupterm to expect a different set of
+ capabilities than are actually present in the file. Either the data-
base may have been updated since setupterm has been recompiled (result-
- ing in extra unrecognized entries in the file) or the program may have
- been recompiled more recently than the database was updated (resulting
- in missing entries). The routine setupterm 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 bool-
+ ing in extra unrecognized entries in the file) or the program may have
+ been recompiled more recently than the database was updated (resulting
+ in missing entries). The routine setupterm 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 bool-
ean, number, and string capabilities.
- X/Open Curses does not specify a format for the terminfo database.
- UNIX System V curses used a directory-tree of binary files, one per
+ X/Open Curses does not specify a format for the terminfo database.
+ UNIX System V curses used a directory-tree of binary files, one per
terminal description.
- Despite the consistent use of little-endian for numbers and the other-
- wise self-describing format, it is not wise to count on portability of
- binary terminfo entries between commercial UNIX versions. The problem
- is that there are at least three versions of terminfo (under HP-UX,
- AIX, and OSF/1) which diverged from System V terminfo after SVr1, and
- have added extension capabilities to the string table that (in the
- binary format) collide with System V and XSI Curses extensions. See
- terminfo(5) for detailed discussion of terminfo source compatibility
+ Despite the consistent use of little-endian for numbers and the other-
+ wise self-describing format, it is not wise to count on portability of
+ binary terminfo entries between commercial UNIX versions. The problem
+ is that there are at least three versions of terminfo (under HP-UX,
+ AIX, and OSF/1) which diverged from System V terminfo after SVr1, and
+ have added extension capabilities to the string table that (in the
+ binary format) collide with System V and XSI Curses extensions. See
+ terminfo(5) for detailed discussion of terminfo source compatibility
issues.
- This implementation is by default compatible with the binary terminfo
- format used by Solaris curses, except in a few less-used details where
- it was found that the latter did not match X/Open Curses. The format
+ This implementation is by default compatible with the binary terminfo
+ format used by Solaris curses, except in a few less-used details where
+ it was found that the latter did not match X/Open Curses. The format
used by the other Unix versions can be matched by building ncurses with
different configuration options.
- The magic number in a binary terminfo file is the first 16-bits (two
- bytes). Besides making it more reliable for the library to check that
- a file is terminfo, utilities such as file also use that to tell what
- the file-format is. System V defined more than one magic number, with
+ The magic number in a binary terminfo file is the first 16-bits (two
+ bytes). Besides making it more reliable for the library to check that
+ a file is terminfo, utilities such as file also use that to tell what
+ the file-format is. System V defined more than one magic number, with
0433, 0435 as screen-dumps (see scr_dump(5)). This implementation uses
- 01036 as a continuation of that sequence, but with a different high-
+ 01036 as a continuation of that sequence, but with a different high-
order byte to avoid confusion.
Direct access to the TERMTYPE structure is provided for legacy applica-
- tions. Portable applications should use the tigetflag and related
+ tions. Portable applications should use the tigetflag and related
functions described in curs_terminfo(3x) for reading terminal capabili-
ties.
- A small number of terminal descriptions use uppercase characters in
- their names. If the underlying filesystem ignores the difference
- between uppercase and lowercase, ncurses represents the "first charac-
+ A small number of terminal descriptions use uppercase characters in
+ their names. If the underlying filesystem ignores the difference
+ between uppercase and lowercase, ncurses represents the "first charac-
ter" of the terminal name used as the intermediate level of a directory
tree in (two-character) hexadecimal form.
@@ -347,22 +348,23 @@
Some limitations:
- o total compiled entries cannot exceed 4096 bytes in the legacy for-
+ o total compiled entries cannot exceed 4096 bytes in the legacy for-
mat.
- o total compiled entries cannot exceed 32768 bytes in the extended
+ o total compiled entries cannot exceed 32768 bytes in the extended
format.
o the name field cannot exceed 128 bytes.
- Compiled entries are limited to 32768 bytes because offsets into the
+ Compiled entries are limited to 32768 bytes because offsets into the
strings table use two-byte integers. The legacy format could have sup-
ported 32768-byte entries, but was limited a virtual memory page's 4096
bytes.
- /usr/share/terminfo/*/* compiled terminal capability data base
+ /usr/local/ncurses/lib/terminfo/*/* compiled terminal capability
+ data base