196 lines
3.3 KiB
HTML
196 lines
3.3 KiB
HTML
<HTML
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><HEAD
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><TITLE
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>Line Draw Characters without VGA Fonts</TITLE
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NAME="GENERATOR"
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CONTENT="Modular DocBook HTML Stylesheet Version 1.7"><LINK
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REL="HOME"
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TITLE="Bash Prompt HOWTO"
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HREF="index.html"><LINK
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TITLE="The Bash Prompt Package"
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HREF="the-bash-prompt-package.html"><LINK
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REL="PREVIOUS"
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TITLE="Changing the Xterm Font"
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HREF="x606.html"><LINK
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TITLE="Loading a Different Prompt"
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HREF="c641.html"></HEAD
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>Bash Prompt HOWTO: </TH
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>Prev</A
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>Chapter 8. The Bash Prompt Package</TD
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><A
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NAME="AEN622"
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>8.4. Line Draw Characters without VGA Fonts</H1
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><P
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>Xterm and rxvt can be switched into line-draw mode on the fly with the
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appropriate escape sequence. You'll need to switch back after you've
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output the characters you wanted or any text following it will be garbled.
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Prompts based on these output codes don't work on the console, instead
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producing the text equivalents. </P
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><P
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>To start a sequence of line draw characters, use an <B
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CLASS="COMMAND"
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>echo
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-e</B
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> and the <B
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CLASS="COMMAND"
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>\033(0</B
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> escape sequence. Most of
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the characters worth using are in the range lower case "a" through "z".
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Terminate the string with another escape sequence,
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<B
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CLASS="COMMAND"
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>\033(B</B
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> . </P
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><P
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>The best method I've found for testing this is shown in the image below:
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use the <B
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CLASS="COMMAND"
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>escgen</B
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> script mentioned earlier in the HOWTO to
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show the 100 to 200 octal range, <B
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CLASS="COMMAND"
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>echo</B
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> the first escape
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sequence, run the <B
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CLASS="COMMAND"
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>escgen</B
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> script for the same range, and
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<B
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CLASS="COMMAND"
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>echo</B
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> the closing escape sequence. The image also shows
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how to use this in a prompt. </P
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><DIV
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CLASS="MEDIAOBJECT"
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><P
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><IMG
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SRC="images/rxvt-line-draw.jpg"><DIV
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CLASS="CAPTION"
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><P
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>Using escape sequences in RXVT (also works in Xterm and RXVT derivatives
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like aterm, which is used here) to produce line draw characters. The
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"escgen" script used above is given earlier in the HOWTO. </P
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></P
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>Prev</A
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>Home</A
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>Next</A
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WIDTH="33%"
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ALIGN="left"
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VALIGN="top"
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>Changing the Xterm Font</TD
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><TD
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WIDTH="34%"
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VALIGN="top"
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>Up</A
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VALIGN="top"
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>Loading a Different Prompt</TD
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> |