# empty input
Code
vt_output("", width = 20, height = 2)$segment
Output
[1] " " " "
# raw input
Code
vt_output(charToRaw("foobar"), width = 20, height = 2)$segment
Output
[1] "foobar " " "
# overflow
Code
vt_output(strrep("1234567890", 2), width = 19, height = 2)$segment
Output
[1] "1234567890123456789" "0 "
# control characters
Code
vt_output("foo\nbar", width = 20, height = 2)$segment
Output
[1] "foo " "bar "
---
Code
vt_output("foobar\rbaz", width = 20, height = 2)$segment
Output
[1] "bazbar " " "
# scroll up
Code
vt_output(strrep("1234567890", 5), width = 20, height = 2)$segment
Output
[1] "12345678901234567890" "1234567890 "
---
Code
vt_output(paste0(1:10, "\n"), width = 10, height = 5)$segment
Output
[1] "7 " "8 " "9 " "10 " " "
# ANSI SGR [ansi]
Code
vt_output("12\033[31m34\033[1m56\033[39m78\033[21m90", width = 20, height = 2)
Output
lineno segmentno segment bold italic underline strikethrough
1 1 1 12 FALSE FALSE FALSE FALSE
2 1 1 34 FALSE FALSE FALSE FALSE
3 1 1 56 TRUE FALSE FALSE FALSE
4 1 1 78 TRUE FALSE FALSE FALSE
5 1 1 90 FALSE FALSE FALSE FALSE
6 2 1 FALSE FALSE FALSE FALSE
blink inverse color background_color link link_params
1 FALSE FALSE <NA> <NA> <NA> <NA>
2 FALSE FALSE 1 <NA> <NA> <NA>
3 FALSE FALSE 1 <NA> <NA> <NA>
4 FALSE FALSE <NA> <NA> <NA> <NA>
5 FALSE FALSE <NA> <NA> <NA> <NA>
6 FALSE FALSE <NA> <NA> <NA> <NA>
---
Code
vt_output(style_bold("I'm bold"), width = 20, height = 2)
Output
lineno segmentno segment bold italic underline strikethrough
1 1 1 I'm bold TRUE FALSE FALSE FALSE
2 1 1 FALSE FALSE FALSE FALSE
3 2 1 FALSE FALSE FALSE FALSE
blink inverse color background_color link link_params
1 FALSE FALSE <NA> <NA> <NA> <NA>
2 FALSE FALSE <NA> <NA> <NA> <NA>
3 FALSE FALSE <NA> <NA> <NA> <NA>
---
Code
vt_output(style_italic("I'm italic"), width = 20, height = 2)
Output
lineno segmentno segment bold italic underline strikethrough
1 1 1 I'm italic FALSE TRUE FALSE FALSE
2 1 1 FALSE FALSE FALSE FALSE
3 2 1 FALSE FALSE FALSE FALSE
blink inverse color background_color link link_params
1 FALSE FALSE <NA> <NA> <NA> <NA>
2 FALSE FALSE <NA> <NA> <NA> <NA>
3 FALSE FALSE <NA> <NA> <NA> <NA>
---
Code
vt_output(style_underline("I'm underlined"), width = 20, height = 2)
Output
lineno segmentno segment bold italic underline strikethrough
1 1 1 I'm underlined FALSE FALSE TRUE FALSE
2 1 1 FALSE FALSE FALSE FALSE
3 2 1 FALSE FALSE FALSE FALSE
blink inverse color background_color link link_params
1 FALSE FALSE <NA> <NA> <NA> <NA>
2 FALSE FALSE <NA> <NA> <NA> <NA>
3 FALSE FALSE <NA> <NA> <NA> <NA>
---
Code
vt_output(style_strikethrough("I'm strikethrough"), width = 20, height = 2)
Output
lineno segmentno segment bold italic underline strikethrough
1 1 1 I'm strikethrough FALSE FALSE FALSE TRUE
2 1 1 FALSE FALSE FALSE FALSE
3 2 1 FALSE FALSE FALSE FALSE
blink inverse color background_color link link_params
1 FALSE FALSE <NA> <NA> <NA> <NA>
2 FALSE FALSE <NA> <NA> <NA> <NA>
3 FALSE FALSE <NA> <NA> <NA> <NA>
---
Code
vt_output(style_inverse("I'm inverse"), width = 20, height = 2)
Output
lineno segmentno segment bold italic underline strikethrough
1 1 1 I'm inverse FALSE FALSE FALSE FALSE
2 1 1 FALSE FALSE FALSE FALSE
3 2 1 FALSE FALSE FALSE FALSE
blink inverse color background_color link link_params
1 FALSE TRUE <NA> <NA> <NA> <NA>
2 FALSE FALSE <NA> <NA> <NA> <NA>
3 FALSE FALSE <NA> <NA> <NA> <NA>
# hyperlinks
Code
link <- style_hyperlink("text", "url")
vt_output(c("pre ", st_from_bel(link), " post"), width = 20, height = 2)
Output
lineno segmentno segment bold italic underline strikethrough
1 1 1 pre FALSE FALSE FALSE FALSE
2 1 1 text FALSE FALSE FALSE FALSE
3 1 1 post FALSE FALSE FALSE FALSE
4 2 1 FALSE FALSE FALSE FALSE
blink inverse color background_color link link_params
1 FALSE FALSE <NA> <NA> <NA> <NA>
2 FALSE FALSE <NA> <NA> url
3 FALSE FALSE <NA> <NA> <NA> <NA>
4 FALSE FALSE <NA> <NA> <NA> <NA>
---
Code
link <- style_hyperlink("text", "url", params = c(f = "x", g = "y"))
vt_output(c("pre ", st_from_bel(link), " post"), width = 20, height = 2)
Output
lineno segmentno segment bold italic underline strikethrough
1 1 1 pre FALSE FALSE FALSE FALSE
2 1 1 text FALSE FALSE FALSE FALSE
3 1 1 post FALSE FALSE FALSE FALSE
4 2 1 FALSE FALSE FALSE FALSE
blink inverse color background_color link link_params
1 FALSE FALSE <NA> <NA> <NA> <NA>
2 FALSE FALSE <NA> <NA> url f = x:g = y
3 FALSE FALSE <NA> <NA> <NA> <NA>
4 FALSE FALSE <NA> <NA> <NA> <NA>
# erase in line
Code
vt_output("foobar\033[3D\033[K", width = 10, height = 2)$segment
Output
[1] "foo " " "
Code
vt_output("foobar\033[3D\033[0K", width = 10, height = 2)$segment
Output
[1] "foo " " "
Code
vt_output("foobar\033[3D\033[1K", width = 10, height = 2)$segment
Output
[1] " ar " " "
Code
vt_output("foobar\033[3D\033[2K", width = 10, height = 2)$segment
Output
[1] " " " "
# erase in screen
Code
vt_output("foo\nfoobar\nfoobar2\033[A\033[4D\033[J", width = 10, height = 4)$
segment
Output
[1] "foo " "foo " " " " "
Code
vt_output("foo\nfoobar\nfoobar2\033[A\033[4D\033[0J", width = 10, height = 4)$
segment
Output
[1] "foo " "foo " " " " "
Code
vt_output("foo\nfoobar\nfoobar2\033[A\033[4D\033[1J", width = 10, height = 4)$
segment
Output
[1] " " " ar " "foobar2 " " "
Code
vt_output("foo\nfoobar\nfoobar2\033[A\033[4D\033[2Jx", width = 10, height = 4)$
segment
Output
[1] " " " x " " " " "
Code
vt_output("foo\nfoobar\nfoobar2\033[A\033[4D\033[3Jx", width = 10, height = 4)$
segment
Output
[1] " " " x " " " " "
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