https://github.com/DavidSpickett created https://github.com/llvm/llvm-project/pull/143385
I can't find a proper source for this but many materials say that ANSI rows and columns start at 1 not 0. https://www2.math.upenn.edu/~kazdan/210/computer/ansi.html is as good as I can get: <row> is a number from 1 through 25 that specifies the row to which the cursor is to be moved. <col> is a number from 1 through 80 that specifies the column to which the cursor is to be moved. 0 does work in Windows terminal and Linux terminals, but we might as well be correct and it's one less thing to reason about when auditing this code. >From what I read, some terminals correct 0 back to 1 and some treat 0 as a >missing argument, which also defaults to 1. >From 7316a626d2934737a0b4a6a284357882e221e0b6 Mon Sep 17 00:00:00 2001 From: David Spickett <david.spick...@linaro.org> Date: Mon, 9 Jun 2025 14:50:29 +0000 Subject: [PATCH] [lldb] Use 1 based row and column for statusline I can't find a proper source for this but many materials say that ANSI rows and columns start at 1 not 0. https://www2.math.upenn.edu/~kazdan/210/computer/ansi.html is as good as I can get: <row> is a number from 1 through 25 that specifies the row to which the cursor is to be moved. <col> is a number from 1 through 80 that specifies the column to which the cursor is to be moved. 0 does work in Windows terminal and Linux terminals, but we might as well be correct. >From what I read, some terminals correct 0 back to 1 and some treat 0 as a missing argument, which also defaults to 1. --- lldb/source/Core/Statusline.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lldb/source/Core/Statusline.cpp b/lldb/source/Core/Statusline.cpp index 52f6134123b76..8a8640805cac0 100644 --- a/lldb/source/Core/Statusline.cpp +++ b/lldb/source/Core/Statusline.cpp @@ -24,8 +24,8 @@ #define ANSI_SAVE_CURSOR ESCAPE "7" #define ANSI_RESTORE_CURSOR ESCAPE "8" #define ANSI_CLEAR_BELOW ESCAPE "[J" -#define ANSI_SET_SCROLL_ROWS ESCAPE "[0;%ur" -#define ANSI_TO_START_OF_ROW ESCAPE "[%u;0f" +#define ANSI_SET_SCROLL_ROWS ESCAPE "[1;%ur" +#define ANSI_TO_START_OF_ROW ESCAPE "[%u;1f" #define ANSI_REVERSE_VIDEO ESCAPE "[7m" #define ANSI_UP_ROWS ESCAPE "[%dA" _______________________________________________ lldb-commits mailing list lldb-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
