|
1
|
|
###########################################################################/**
|
|
2
|
|
# @RdocClass RspShSourceCodeFactory
|
|
3
|
|
#
|
|
4
|
|
# @title "The RspShSourceCodeFactory class"
|
|
5
|
|
#
|
|
6
|
|
# \description{
|
|
7
|
|
# @classhierarchy
|
|
8
|
|
#
|
|
9
|
|
# An RspShSourceCodeFactory is an @see "RspSourceCodeFactory" for
|
|
10
|
|
# the shell ('sh') script language.
|
|
11
|
|
# }
|
|
12
|
|
#
|
|
13
|
|
# @synopsis
|
|
14
|
|
#
|
|
15
|
|
# \arguments{
|
|
16
|
|
# \item{...}{Not used.}
|
|
17
|
|
# }
|
|
18
|
|
#
|
|
19
|
|
# \section{Fields and Methods}{
|
|
20
|
|
# @allmethods
|
|
21
|
|
# }
|
|
22
|
|
#
|
|
23
|
|
# @author
|
|
24
|
|
#
|
|
25
|
|
# @keyword internal
|
|
26
|
|
#*/###########################################################################
|
|
27
|
|
setConstructorS3("RspShSourceCodeFactory", function(...) {
|
|
28
|
1
|
extend(RspSourceCodeFactory("sh"), "RspShSourceCodeFactory")
|
|
29
|
|
})
|
|
30
|
|
|
|
31
|
|
|
|
32
|
|
|
|
33
|
|
setMethodS3("exprToCode", "RspShSourceCodeFactory", function(object, expr, ..., index=NA) {
|
|
34
|
|
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
35
|
|
# Local function
|
|
36
|
|
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
37
|
0
|
escapeRspText <- function(text) {
|
|
38
|
0
|
text <- deparse(text)
|
|
39
|
0
|
text <- substring(text, first=2L, last=nchar(text)-1L)
|
|
40
|
|
## SHELL: Escape backticks
|
|
41
|
0
|
text <- sapply(text, FUN=function(s) {
|
|
42
|
0
|
gsub("`", "\\`", s, fixed = TRUE)
|
|
43
|
|
})
|
|
44
|
|
## SHELL: Escape dollar signs
|
|
45
|
0
|
text <- sapply(text, FUN=function(s) {
|
|
46
|
0
|
gsub("$", "\\$", s, fixed = TRUE)
|
|
47
|
|
})
|
|
48
|
0
|
text
|
|
49
|
0
|
} # escapeRspText()
|
|
50
|
|
|
|
51
|
0
|
makeCode <- function(code, echo=FALSE, include=FALSE, ...) {
|
|
52
|
0
|
code <- unlist(strsplit(code, split="\n", fixed=TRUE), use.names=FALSE)
|
|
53
|
0
|
codeT <- trim(code)
|
|
54
|
|
|
|
55
|
0
|
n <- length(code)
|
|
56
|
0
|
codeE <- sapply(code, FUN=escapeRspText)
|
|
57
|
0
|
codeE <- sprintf("printf \"%s\"", codeE)
|
|
58
|
0
|
suffixR <- rep(" 2> /dev/null", times=n)
|
|
59
|
0
|
codeR <- sprintf("%s%s", codeT, suffixR)
|
|
60
|
0
|
if (include) {
|
|
61
|
|
# Output the last out
|
|
62
|
0
|
codeR[n] <- sprintf("printf \"%s\"", code[n])
|
|
63
|
|
}
|
|
64
|
|
|
|
65
|
0
|
codeS <- matrix(c(codeE, codeR), nrow=2L, byrow=TRUE)
|
|
66
|
0
|
rownames(codeS) <- c("echo", "include")
|
|
67
|
|
|
|
68
|
0
|
if (echo && !include) {
|
|
69
|
0
|
code <- codeS[1L,,drop=TRUE]
|
|
70
|
0
|
} else if (echo && include) {
|
|
71
|
0
|
code <- codeS
|
|
72
|
0
|
} else if (!echo && include) {
|
|
73
|
0
|
code <- codeS[2L,,drop=TRUE]
|
|
74
|
0
|
} else if (!echo && !include) {
|
|
75
|
0
|
code <- codeS[2L,,drop=TRUE]
|
|
76
|
|
}
|
|
77
|
|
|
|
78
|
0
|
code
|
|
79
|
0
|
} # makeCode()
|
|
80
|
|
|
|
81
|
|
|
|
82
|
|
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
83
|
|
# Validate arguments
|
|
84
|
|
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
85
|
|
# Argument 'expr':
|
|
86
|
0
|
reqClasses <- c("RspText", "RspExpression")
|
|
87
|
0
|
if (!inherits(expr, reqClasses)) {
|
|
88
|
0
|
throw("Argument 'expr' must be of class RspText or RspExpression: ", class(expr)[1L])
|
|
89
|
|
}
|
|
90
|
|
|
|
91
|
|
|
|
92
|
|
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
93
|
|
# RspText => echo "<text>"
|
|
94
|
|
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
95
|
0
|
if (inherits(expr, "RspText")) {
|
|
96
|
0
|
text <- getContent(expr)
|
|
97
|
|
|
|
98
|
0
|
code <- NULL
|
|
99
|
0
|
while (nchar(text) > 0L) {
|
|
100
|
0
|
textT <- substring(text, first=1L, last=1024L)
|
|
101
|
0
|
textT <- escapeRspText(textT)
|
|
102
|
0
|
codeT <- sprintf("printf \"%s\"", textT)
|
|
103
|
0
|
code <- c(code, codeT)
|
|
104
|
0
|
text <- substring(text, first=1025L)
|
|
105
|
|
}
|
|
106
|
0
|
if (is.null(code)) {
|
|
107
|
0
|
code <- "printf \"\\n\""
|
|
108
|
|
}
|
|
109
|
|
|
|
110
|
0
|
return(code)
|
|
111
|
|
}
|
|
112
|
|
|
|
113
|
|
|
|
114
|
|
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
115
|
|
# RspCodeChunk => ...
|
|
116
|
|
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
117
|
0
|
if (inherits(expr, "RspCodeChunk")) {
|
|
118
|
0
|
code <- makeCode(getCode(expr), echo=getEcho(expr), include=getInclude(expr))
|
|
119
|
0
|
return(code)
|
|
120
|
|
}
|
|
121
|
|
|
|
122
|
|
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
123
|
|
# RspCode => <code>
|
|
124
|
|
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
125
|
0
|
if (inherits(expr, "RspCode")) {
|
|
126
|
0
|
code <- makeCode(getCode(expr), echo=getEcho(expr), include=FALSE)
|
|
127
|
0
|
return(code)
|
|
128
|
|
}
|
|
129
|
|
|
|
130
|
|
|
|
131
|
|
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
132
|
|
# RspComment => [void]
|
|
133
|
|
# - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
|
|
134
|
0
|
if (inherits(expr, "RspComment")) {
|
|
135
|
0
|
return("")
|
|
136
|
|
}
|
|
137
|
|
|
|
138
|
|
|
|
139
|
0
|
throw(sprintf("Unknown class of RSP expression (#%d): %s", index, class(expr)[1L]))
|
|
140
|
|
}, protected=TRUE) # exprToCode()
|
HenrikBengtsson