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introduce some new methods

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* ext/strscan/strscan.c: new method StringScanner#beginning_of_line? (alias #bol?)
* ext/strscan/strscan.c: new method StringScanner#concat and #<<.
* ext/strscan/strscan.c: StringScanner#new(str) does not duplicate nor freeze STR (allow destructive modification).
* test/strscan/test_stringscanner.rb: test new methods above.
* test/strscan/test_stringscanner.rb: test destructive string modification.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@5201 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
aamine 2003-12-16 15:18:11 +00:00
parent ff9f067f89
commit 6ef31af2d1
3 changed files with 173 additions and 41 deletions
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93
test/strscan/test_stringscanner.rb
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@ -5,14 +5,11 @@
require 'strscan'
require 'test/unit'
class TestStringScanner < Test::Unit::TestCase
def test_s_new
s = StringScanner.new('test string')
assert_instance_of StringScanner, s
assert_equal false, s.eos?
assert_equal true, s.string.frozen?
assert_equal false, s.tainted?
str = 'test string'
@ -21,7 +18,6 @@ class TestStringScanner < Test::Unit::TestCase
assert_instance_of StringScanner, s
assert_equal false, s.eos?
assert_same str, s.string
assert_equal true, s.string.frozen?
assert_equal true, s.string.tainted?
str = 'test string'
@ -30,8 +26,8 @@ class TestStringScanner < Test::Unit::TestCase
assert_equal true, s.string.tainted?
end
if VERSION >= '1.7.0'
UNINIT_ERROR = ArgumentError
def test_s_allocate
s = StringScanner.allocate
assert_equal '#<StringScanner (uninitialized)>', s.inspect.sub(/StringScanner_C/, 'StringScanner')
@ -42,7 +38,6 @@ if VERSION >= '1.7.0'
assert_nothing_raised(UNINIT_ERROR) { s.eos? }
assert_equal false, s.eos?
end
end
def test_s_mustc
assert_nothing_raised(NotImplementedError) {
@ -70,6 +65,9 @@ end
s.get_byte
assert_equal '#<StringScanner 1/11 "t" @ "est s...">', s.inspect.sub(/StringScanner_C/, 'StringScanner')
assert_equal true, s.inspect.tainted?
s = StringScanner.new("\n")
assert_equal '#<StringScanner 0/1 @ "\n">', s.inspect
end
def test_eos?
@ -85,6 +83,51 @@ end
assert_equal true, s.eos?
s.scan(/\w+/)
assert_equal true, s.eos?
s = StringScanner.new('test')
s.scan(/te/)
s.string.replace ''
assert_equal true, s.eos?
end
def test_bol?
s = StringScanner.new("a\nbbb\n\ncccc\nddd\r\neee")
assert_equal true, s.bol?
assert_equal true, s.bol?
s.scan(/a/)
assert_equal false, s.bol?
assert_equal false, s.bol?
s.scan(/\n/)
assert_equal true, s.bol?
s.scan(/b/)
assert_equal false, s.bol?
s.scan(/b/)
assert_equal false, s.bol?
s.scan(/b/)
assert_equal false, s.bol?
s.scan(/\n/)
assert_equal true, s.bol?
s.unscan
assert_equal false, s.bol?
s.scan(/\n/)
s.scan(/\n/)
assert_equal true, s.bol?
s.scan(/c+\n/)
assert_equal true, s.bol?
s.scan(/d+\r\n/)
assert_equal true, s.bol?
s.scan(/e+/)
assert_equal false, s.bol?
end
def test_string
s = StringScanner.new('test')
assert_equal 'test', s.string
s.string = 'a'
assert_equal 'a', s.string
s.scan(/a/)
s.string = 'b'
assert_equal 0, s.pos
end
def test_pos
@ -98,6 +141,19 @@ end
assert_equal 11, s.pos
end
def test_concat
s = StringScanner.new('a')
s.scan(/a/)
s.concat 'b'
assert_equal false, s.eos?
assert_equal 'b', s.scan(/b/)
assert_equal true, s.eos?
s.concat 'c'
assert_equal false, s.eos?
assert_equal 'c', s.scan(/c/)
assert_equal true, s.eos?
end
def test_scan
s = StringScanner.new('stra strb strc', true)
tmp = s.scan(/\w+/)
@ -139,6 +195,15 @@ end
assert_nil s.scan(/\w+/)
assert_nil s.scan(/\w+/)
s = StringScanner.new('test')
s.scan(/te/)
# This assumes #string does not duplicate string,
# but it is implementation specific issue.
# DO NOT RELY ON THIS FEATURE.
s.string.replace ''
# unspecified: assert_equal 2, s.pos
assert_equal nil, s.scan(/test/)
end
def test_skip
@ -151,6 +216,11 @@ end
assert_nil s.skip(/\w+/)
assert_nil s.skip(/\s+/)
assert_equal true, s.eos?
s = StringScanner.new('test')
s.scan(/te/)
s.string.replace ''
assert_equal nil, s.skip(/./)
end
def test_getch
@ -175,6 +245,11 @@ end
assert_equal "\244\242", s.getch
assert_nil s.getch
$KCODE = 'NONE'
s = StringScanner.new('test')
s.scan(/te/)
s.string.replace ''
assert_equal nil, s.getch
end
def test_get_byte
@ -201,6 +276,11 @@ end
assert_equal "\242", s.get_byte
assert_nil s.get_byte
$KCODE = 'NONE'
s = StringScanner.new('test')
s.scan(/te/)
s.string.replace ''
assert_equal nil, s.get_byte
end
def test_matched
@ -392,5 +472,4 @@ end
s.reset
assert_equal 0, s.pos
end
end