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Integrate clear screen detection into isaltscreen - scroll - scrollbackbuffer p… |
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git clone git://git.suckless.org/scroll |
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Log |
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README |
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LICENSE |
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--- |
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commit 63f16494898a219a41fe5538a86af21b827bdb11 |
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parent 54ac69d9a563d71dc9fba77c1b231e015842908a |
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Author: Jochen Sprickerhof <[email protected]> |
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Date: Tue, 14 Apr 2020 23:32:48 +0200 |
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Integrate clear screen detection into isaltscreen |
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Diffstat: |
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M scroll.c | 18 +++++++++--------- |
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1 file changed, 9 insertions(+), 9 deletions(-) |
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--- |
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diff --git a/scroll.c b/scroll.c |
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@@ -197,9 +197,9 @@ strelen(const char *buf, size_t size) |
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return len; |
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} |
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-/* detect alternative screen switching */ |
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+/* detect alternative screen switching and clear screen */ |
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bool |
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-isaltscreen(char c) |
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+scipesc(char c) |
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{ |
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static enum {CHAR, BREK, ESC} state = CHAR; |
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static char buf[BUFSIZ]; |
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@@ -238,6 +238,10 @@ isaltscreen(char c) |
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strcmp(buf, "?1047l") == 0 || |
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strcmp(buf, "?47l" ) == 0) |
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altscreen = false; |
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+ |
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+ /* don't save clear screen esc sequences in log */ |
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+ if (strcmp(buf, "H\033[2J") == 0) |
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+ return true; |
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} |
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break; |
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} |
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@@ -518,15 +522,11 @@ main(int argc, char *argv[]) |
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if (write(STDOUT_FILENO, input, n) == -1) |
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die("write:"); |
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- /* don't save clear screen esc sequences in log */ |
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- /* TODO: may need to check if it wasn't read in one st… |
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- if (strcmp("\033[H\033[2J", input) == 0) |
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- continue; |
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- |
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/* iterate over the input buffer */ |
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for (char *c = input; n-- > 0; c++) { |
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- /* don't save lines from alternative screen */ |
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- if (isaltscreen(*c)) |
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+ /* don't save alternative screen and */ |
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+ /* clear screen esc sequences to scrollback */ |
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+ if (scipesc(*c)) |
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continue; |
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if (*c == '\n') { |
