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==$T.REX==
This is the '''$T.REX''' (REXX) program which is used by many other REXX programs to display error or informational message(s),
<br>some of the options
:* in color(s) (if supported)
:* highlights (in color) parts (up to 8 unique parts) of the text (if supported)
:* write text to a file
:* breaks the text into multiple lines
:* adds indentation
:* justifies the text: left/right/center/justify (
:* add blank lines before and/or after the displaying of text
:* boxing (around) the text
:* add spacing around the text inside the box
:* only showing specific lines of the text messages
:* suppressing specific lines of the text messages
:* translation of certain characters in the text
:* allowing other characters to be used for blanks
:* repeating a text
:* allows remarks in the text
:* writes the message, waits for a confirmation to proceed
:* delaying (waiting) after the text is displayed
:* showing a scale and/or a ruler above/below the text message(s)
:* supports hex/dec/bit strings
:* changing the case of the text
:* reverses the text
:* inverts the bits for certain characters
:* sounds alarm (beeps) after the text is displayed (if supported)
:* displays the text in reverse video (if supported)
:* displays the text in (big) block letters
:* clear the screen after or before the displaying of text
:* allows user-define option character, the default is '''.''' (period)
:* and many other options
<br>The help for the '''$T''' REXX program is included here ──► [[$T.HEL]].▼
▲
<br><br>The '''$T''' REXX program makes use of '''$ERR''' REXX program which is used to display error messages (via '''$T''').
<br>The '''$ERR''' REXX program is included here ──► [[$ERR.REX]].
<br><br>The '''$T''' REXX program makes use of '''LINESIZE''' BIF which returns the terminals width (linesize).
<br>Some REXXes
<br><br>The '''$T''' REXX program makes use of '''SCRSIZE''' BIF which returns the terminals width (linesize) and depth.
<br>Some REXXes
<br><br>The '''$T''' REXX program makes use of '''DELAY''' BIF which delays (sleeps) for a specified amount of seconds.
<br>Some REXXes
<br><br>The '''$T''' REXX program makes use of '''SOUND''' BIF which produces sounds via the PC speaker.
<br>Some REXXes
<br><br>REXX programs not included are '''$H''' which shows '''help''' and other documentation.
<lang rexx>/*REXX*/ trace off /* There be many dragons below. */
Line 912 ⟶ 914:
sw: if ?.linesize=='' then ?.linesize=linesize(); return ?.linesize
syntax: !sigl=sigl; call er 13,!fid(2) !fid(3) !sigl !cal() condition('D') sourceline(!sigl)
wit: call dsay arg(1); call wr arg(1); return</lang>
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