52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
/*****************************************************************************
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EchoIt()
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This function displays a character in it's printable form, either
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as CH, ^CH, or [CH].
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*****************************************************************************/
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#include "zport.h" /* define portability identifiers */
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#include "tecoc.h" /* define general identifiers */
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#include "defext.h" /* define external global identifiers */
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#include "dchars.h" /* define identifiers for characters */
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VVOID EchoIt(Charac)
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unsigned char Charac;
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{
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if (Charac > USCHAR && Charac < DELETE) { /* displayable? */
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ZDspCh(Charac);
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} else if (Charac & '\200') { /* eighth bit set? */
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if (EtFlag & ET_EIGHTBIT) { /* term can display */
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ZDspCh(Charac);
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} else {
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ZDspCh('['); /* display as [ch] */
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MakDBf((LONG)Charac,16);
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*DBfPtr++ = ']';
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ZDspBf(DBfBeg, DBfPtr-DBfBeg);
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}
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} else {
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switch (Charac) {
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case BAKSPC:
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case TABCHR:
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case LINEFD:
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case CRETRN:
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ZDspCh(Charac);
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break;
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case ESCAPE:
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ZDspCh('$');
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break;
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case FORMFD:
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ZDspCh('\r');
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/* fall through to VRTTAB */
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case VRTTAB:
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ZDspBf("\n\n\n\n", 4);
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break;
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case DELETE:
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break;
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case CTRL_G:
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ZDspCh(CTRL_G);
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/* fall through to default case */
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default: /* display as ^ch */
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ZDspCh('^');
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ZDspCh(Charac | '\100');
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}
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}
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}
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