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a1f4113705
* Improve ropes module Improve wording Update runnableExamples Add index bound check for `[]` Minor format changes * Update tests/stdlib/tropes.nim Run on C & JS target Test in VM Add tests for `[]`
103 lines
1.9 KiB
Nim
103 lines
1.9 KiB
Nim
discard """
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targets: "c js"
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"""
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import std/ropes
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template main() =
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block:
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let r: Rope = nil
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doAssert r[0] == '\0'
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doAssert $r == ""
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block:
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var
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r1 = rope("Hello, ")
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r2 = rope("Nim-Lang")
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let r = r1 & r2
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let s = $r
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doAssert s == "Hello, Nim-Lang"
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for i in 0 ..< r.len:
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doAssert r[i] == s[i]
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doAssert r[66] == '\0'
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block:
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let r = rope("Hello, Nim-Lang")
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let s = $r
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doAssert s == "Hello, Nim-Lang"
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for i in 0 ..< r.len:
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doAssert r[i] == s[i]
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doAssert r[66] == '\0'
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block:
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var r: Rope
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r.add rope("Nim ")
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r.add rope("is ")
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r.add rope("a ")
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r.add rope("great ")
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r.add rope("language")
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let s = $r
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doAssert s == "Nim is a great language"
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for i in 0 ..< r.len:
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doAssert r[i] == s[i]
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doAssert r[66] == '\0'
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block:
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var r: Rope
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r.add rope("My Conquest")
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r.add rope(" is ")
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r.add rope("the Sea of Stars")
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let s = $r
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doAssert s == "My Conquest is the Sea of Stars"
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for i in 0 ..< r.len:
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doAssert r[i] == s[i]
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doAssert r[66] == '\0'
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block:
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var r: Rope
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r.add rope("My Conquest")
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r.add rope(" is ")
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r.add rope("the Sea of Stars")
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doAssert $r == "My Conquest is the Sea of Stars"
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var i: int
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for item in r:
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doAssert r[i] == item
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inc i
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doAssert r[66] == '\0'
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block:
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let r1 = "$1 $2 $3" % [rope("Nim"), rope("is"), rope("a great language")]
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doAssert $r1 == "Nim is a great language"
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let r2 = "$# $# $#" % [rope("Nim"), rope("is"), rope("a great language")]
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doAssert $r2 == "Nim is a great language"
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block: # `[]`
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let r1 = rope("Hello, Nim!")
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doAssert r1[-2] == '\0'
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doAssert r1[0] == 'H'
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doAssert r1[7] == 'N'
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doAssert r1[22] == '\0'
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let r2 = rope("Hello") & rope(", Nim!")
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doAssert r2[-2] == '\0'
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doAssert r2[0] == 'H'
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doAssert r2[7] == 'N'
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doAssert r2[22] == '\0'
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static: main()
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main()
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