1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
|
NAME <- "text"
source(file.path('_helper', 'init.R'))
# - simple wrap
txt1 <- c(
"humpty dumpty sat on a wall and had a big fall",
"humpty sat on a wall and dumped a big fall"
)
res1 <- diffobj:::wrap(txt1, 10, TRUE, sgr.supported=TRUE)
identical(
gsub(" *$", "", vapply(res1, paste0, character(1L), collapse="")), txt1
)
all.equal(lapply(res1, nchar), list(rep(10L, 5L), rep(10L, 5L)))
txt2 <- "hello world!"
identical(
unlist(diffobj:::wrap(txt2, nchar(txt2), TRUE, sgr.supported=TRUE)),
txt2
)
identical(
paste0(
unlist(diffobj:::wrap(txt2, nchar(txt2) / 2, TRUE, sgr.supported=TRUE)),
collapse=""
),
txt2
)
# - wrap with escape sequences
txt3 <- c(
paste0(
"humpty dumpty ", crayon::style("sat on a wall", "red"),
" and had a big fall",
crayon::style(
crayon::style(
"humpty sat on a wall and dumped a big fall",
"green"
),
"bgRed"
), "woohoo"
),
paste0(
crayon::style("hello ", "inverse"), "beautiful ",
crayon::style("world", "blue")
)
)
res3 <- diffobj:::wrap(txt3, 10, TRUE, sgr.supported=TRUE)
identical(
crayon::strip_style(
gsub(" *$", "", vapply(res3, paste0, character(1L), collapse=""))
),
crayon::strip_style(txt3)
)
all.equal(
lapply(res3, crayon::col_nchar),
list(rep(10L, 10L), rep(10L, 3L))
)
# - strip hz whitespace
options(crayon.enabled=FALSE)
all.equal(
diffobj:::strip_hz_control("a\tb", stops=4L, sgr.supported=TRUE), "a b")
all.equal(
diffobj:::strip_hz_control("ab\t", stops=4L, sgr.supported=TRUE), "ab ")
all.equal(
diffobj:::strip_hz_control("a\tb\t", stops=4L, sgr.supported=TRUE), "a b ")
all.equal(
diffobj:::strip_hz_control("\ta\tb\t", stops=4L, sgr.supported=TRUE),
" a b "
)
all.equal(
diffobj:::strip_hz_control("\ta\tb\t", stops=c(2L, 4L), sgr.supported=TRUE),
" a b "
)
all.equal(
diffobj:::strip_hz_control(
c("ab\t", "\ta\tb\t"), sgr.supported=TRUE, stops=4L
),
c("ab ", " a b ")
)
# recall that nchar("\033") == 1
all.equal(
diffobj:::strip_hz_control(
"\033[31ma\t\033[39mhello\tb", stops=10L, sgr.supported=FALSE
),
"\033[31ma \033[39mhello b"
)
all.equal(
diffobj:::strip_hz_control(
"\033[31ma\t\033[39mhello\tb", stops=10L, sgr.supported=TRUE
),
"\033[31ma\033[39m \033[31m\033[39mhello \033[31m\033[39mb"
)
# carriage returns
all.equal(
diffobj:::strip_hz_control("hellothere\rHELLO", sgr.supported=TRUE),
"HELLOthere"
)
all.equal(
diffobj:::strip_hz_control(
c("hellothere\rHELLO", "000\r12345678\rabcdef\rABC"), sgr.supported=TRUE
),
c("HELLOthere", "ABCdef78")
)
all.equal(
diffobj:::strip_hz_control("hellothere\r", sgr.supported=TRUE),
"hellothere"
)
all.equal(
diffobj:::strip_hz_control(character(), sgr.supported=TRUE), character()
)
# newlines
all.equal(
diffobj:::strip_hz_control(c("a", "", "\n", "a\nb"), sgr.supported=TRUE),
c("a", "", "", "a", "b")
)
# with colors
options(crayon.enabled=TRUE)
all.equal(
crayon::strip_style(
diffobj:::strip_hz_control(
"\033[31ma\t\033[39mhello\tb", stops=10L, sgr.supported=TRUE)
),
"a hello b"
)
test.chr <- paste0(
crayon::red(crayon::`%+%`("000", crayon::bgBlue("\r12345678"))),
"\rabcdef", crayon::green("\rABC")
)
# visually inspect these
# cat("\n")
# cat(test.chr, sep="\n")
res <- diffobj:::strip_hz_control(test.chr, sgr.supported=TRUE)
# cat(res, sep="\n")
all.equal(crayon::strip_style(res), "ABCdef78")
# Mix tabs and carriage returns, visual inspection assumes terminal tab
# stops at 8L; note output not exactly the same since it seems tabs don't
# ovewrite prior screen state whereas spaces do
test.chr.2 <- paste0(
crayon::red(crayon::`%+%`("000", crayon::bgBlue("\r123\t456\t78"))),
"\rab\tcd f", crayon::green("\rABC")
)
# cat("\n")
# cat(test.chr.2, sep="\n")
res.2 <- diffobj:::strip_hz_control(test.chr.2, stops=8L, sgr.supported=TRUE)
# cat(res.2, sep="\n")
all.equal(crayon::strip_style(res.2), "ABC cd f 78")
# multi line
test.chr.3 <- c(test.chr, test.chr.2)
# cat("\n")
res.3 <- diffobj:::strip_hz_control(test.chr.3, sgr.supported=TRUE)
# cat(res.3, sep="\n")
# cat(test.chr.3, sep="\n")
all.equal(crayon::strip_style(res.3), c("ABCdef78", "ABC cd f 78"))
|
