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VI: Display origin for VT100 is (1,1), not (0,0)

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This commit is contained in:
Gregory Nutt 2014-01-20 19:32:30 -06:00
parent eefd9df8f5
commit 5f43b6c815
2 changed files with 16 additions and 5 deletions
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11
system/vi/.gitignore vendored Normal file
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@ -0,0 +1,11 @@
/Make.dep
/.depend
/.built
/*.asm
/*.rel
/*.lst
/*.sym
/*.adb
/*.lib
/*.src
/*.obj

10
system/vi/vi.c
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@ -572,9 +572,9 @@ static void vi_setcursor(FAR struct vi_s *vi, uint16_t row, uint16_t column)
vivdbg("row=%d column=%d\n", row, column);
/* Format the cursor position command */
/* Format the cursor position command. The origin is (1,1). */
len = snprintf(buffer, 16, g_fmtcursorpos, row, column);
len = snprintf(buffer, 16, g_fmtcursorpos, row + 1, column + 1);
/* Send the VT100 CURSORPOS command */
@ -1557,7 +1557,7 @@ static void vi_showtext(FAR struct vi_s *vi)
/* If there was not enough text to fill the display, clear the
* remaining lines (except for any possible error line at the
& bottom of the display).
* bottom of the display).
*/
for (; row < endrow; row++)
@ -1676,7 +1676,7 @@ static off_t vi_cursorleft(FAR struct vi_s *vi, off_t curpos, int ncolumns)
vivdbg("curpos=%ld ncolumns=%d\n", curpos, ncolumns);
for (remaining = ncolumns < 1 ? 1 : ncolumns;
for (remaining = (ncolumns < 1 ? 1 : ncolumns);
curpos > 0 && remaining > 0 && vi->text[curpos] != '\n';
curpos--, remaining--);
@ -1699,7 +1699,7 @@ static off_t vi_cursorright(FAR struct vi_s *vi, off_t curpos, int ncolumns)
vivdbg("curpos=%ld ncolumns=%d\n", curpos, ncolumns);
for (remaining = ncolumns < 1 ? 1 : ncolumns;
for (remaining = (ncolumns < 1 ? 1 : ncolumns);
curpos < vi->textsize && remaining > 0 && vi->text[curpos] != '\n';
curpos++, remaining--);