X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=doc%2Fhtml%2Fman%2Fcurs_variables.3x.html;h=afeca3b21e894698f094f0f5e3f225a305d9be0f;hp=82f9dcfe866fd6caadf1e2a9ddc87305702d5b5e;hb=9193d076200365eeb5ff932acdbbdcc5e452292c;hpb=bca50d0d8592defee6c584fdedd25f4b1a31345b
diff --git a/doc/html/man/curs_variables.3x.html b/doc/html/man/curs_variables.3x.html
index 82f9dcfe..afeca3b2 100644
--- a/doc/html/man/curs_variables.3x.html
+++ b/doc/html/man/curs_variables.3x.html
@@ -1,6 +1,6 @@
@@ -34,7 +34,7 @@
curs_variables 3x
-
+
@@ -101,7 +101,7 @@
This variable holds the number of milliseconds to wait after reading an
escape character, to distinguish between an individual escape character
entered on the keyboard from escape sequences sent by cursor- and func-
- tion-keys (see curses(3x).
+ tion-keys (see curses(3x)).
@@ -119,11 +119,17 @@
This implementation of curses uses a special window curscr to record
its updates to the terminal screen.
+ This is referred to as the "physical screen" in the curs_refresh(3x)
+ and curs_outopts(3x) manual pages.
+
- This implementation of curses uses a special window newscr to hold up-
+ This implementation of curses uses a special window newscr to hold up-
dates to the terminal screen before applying them to curscr.
+ This is referred to as the "virtual screen" in the curs_kernel(3x),
+ curs_refresh(3x) and curs_outopts(3x) manual pages.
+
- ESCDELAY and TABSIZE are extensions, not provided in most other imple-
- mentations of curses.
+ TABSIZE is a feature of SVr4 curses which is not documented by X/Open
+ curses.
+
+ o In SVr4 curses, TABSIZE is initially set from the terminal descrip-
+ tion's init_tabs capability. After that, it can be altered by the
+ applications using SVr4 curses.
+
+ SVr4 curses uses the current value of TABSIZE to compute the posi-
+ tion of tabstops for updating both the virtual screen with add-
+ ch(3x) as well as the physical screen with mvcur(3x).
+
+ o This implementation uses the current value of TABSIZE only for up-
+ dating the virtual screen. It uses the terminal description's it
+ (init_tabs) capability for computing hardware tabs (i.e., tab stops
+ on the physical screen).
+
+ o Other implementations differ. For instance, NetBSD curses allows
+ TABSIZE to be set through an environment variable. This implemen-
+ tation does not.
+
+ NetBSD curses does not support hardware tabs; it uses the init_tabs
+ capability and the TABSIZE variable only for updating the virtual
+ screen.
- ESCDELAY is an extension in AIX curses:
+ ESCDELAY is an extension in AIX curses:
- o In AIX, the units for ESCDELAY are fifths of a millisecond.
+ o In AIX, the units for ESCDELAY are fifths of a millisecond.
- o The default value for AIX's ESCDELAY is 0.1 seconds.
+ o The default value for AIX's ESCDELAY is 0.1 seconds.
- o AIX also enforces a limit of 10,000 seconds for ESCDELAY; this im-
+ o AIX also enforces a limit of 10,000 seconds for ESCDELAY; this im-
plementation currently has no upper limit.
- This implementation has long used ESCDELAY with units of milliseconds,
- making it impossible to be completely compatible with AIX. Likewise,
- most users have either decided to override the value, or rely upon its
+ This implementation has long used ESCDELAY with units of milliseconds,
+ making it impossible to be completely compatible with AIX. Likewise,
+ most users have either decided to override the value, or rely upon its
default value.