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Implement Regular Expression split and update Text.split to the new API (#6116)

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Re-implement split on top of Truffle regex.
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GregoryTravis 2023-03-30 09:05:30 -04:00 committed by GitHub
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6 changed files with 236 additions and 127 deletions
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7
CHANGELOG.md
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@ -366,8 +366,10 @@
- [Aligned names of columns created by column operations.][5850]
- [Improved `cross_tab`. Renamed `fill_missing` and `is_missing` to
`fill_nothing` and `is_nothing`. Added `fill_empty`.][5863]
- [Removed many regex compile flags from `replace`; added `only_first`
flag.][5959]
- [Removed many regex compile flags from `replace`; added `only_first` and
`use_regex` flag.][5959]
- [Removed many regex compile flags from `split`; added `only_first` and
`use_regex` flag.][6116]
[debug-shortcuts]:
https://github.com/enso-org/enso/blob/develop/app/gui/docs/product/shortcuts.md#debug
@ -556,6 +558,7 @@
[5917]: https://github.com/enso-org/enso/pull/5917
[5705]: https://github.com/enso-org/enso/pull/5705
[5959]: https://github.com/enso-org/enso/pull/5959
[6116]: https://github.com/enso-org/enso/pull/6116
#### Enso Compiler

1
distribution/lib/Standard/Base/0.0.0-dev/src/Data/Index_Sub_Range.enso
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@ -115,6 +115,7 @@ invert_range_selection ranges length needs_sorting =
merged.
Empty subranges are discarded.
sort_and_merge_ranges : Vector Range -> Vector Range
sort_and_merge_ranges ranges =
sorted = ranges.filter (range-> range.is_empty.not) . sort on=(.start)
if sorted.is_empty then [] else

54
distribution/lib/Standard/Base/0.0.0-dev/src/Data/Text/Extensions.enso
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@ -15,13 +15,11 @@ import project.Data.Text.Location.Location
import project.Data.Text.Matching_Mode.Matching_Mode
import project.Data.Text.Regex.Match.Match
import project.Data.Text.Regex.Regex_Mode.Regex_Mode
import project.Data.Text.Regex_Matcher.Regex_Matcher
import project.Data.Text.Regex_2
import project.Data.Text.Regex_2.Regex_Syntax_Error
import project.Data.Text.Span.Span
import project.Data.Text.Span.Utf_16_Span
import project.Data.Text.Text
import project.Data.Text.Text_Matcher.Text_Matcher
import project.Data.Text.Text_Sub_Range.Codepoint_Ranges
import project.Data.Text.Text_Sub_Range.Text_Sub_Range
import project.Data.Vector.Vector
@ -237,7 +235,7 @@ Text.find self pattern=".*" case_sensitivity=Case_Sensitivity.Sensitive =
Helpers.regex_assume_default_locale case_sensitivity <|
case_insensitive = case_sensitivity.is_case_insensitive_in_memory
compiled_pattern = Regex_2.compile pattern case_insensitive=case_insensitive
compiled_pattern.if_not_error <| compiled_pattern.match self
compiled_pattern.match self
## Finds all the matches of the regular expression `pattern` in `self`,
returning a Vector. If not found, will be an empty Vector.
@ -265,7 +263,7 @@ Text.find_all self pattern=".*" case_sensitivity=Case_Sensitivity.Sensitive =
Helpers.regex_assume_default_locale case_sensitivity <|
case_insensitive = case_sensitivity.is_case_insensitive_in_memory
compiled_pattern = Regex_2.compile pattern case_insensitive=case_insensitive
compiled_pattern.if_not_error <| compiled_pattern.match_all self
compiled_pattern.match_all self
## ALIAS Check Matches
@ -296,7 +294,7 @@ Text.match self pattern=".*" case_sensitivity=Case_Sensitivity.Sensitive =
Helpers.regex_assume_default_locale case_sensitivity <|
case_insensitive = case_sensitivity.is_case_insensitive_in_memory
compiled_pattern = Regex_2.compile pattern case_insensitive=case_insensitive
compiled_pattern.if_not_error <| compiled_pattern.matches self
compiled_pattern.matches self
## ALIAS Split Text
@ -305,34 +303,34 @@ Text.match self pattern=".*" case_sensitivity=Case_Sensitivity.Sensitive =
Arguments:
- delimiter: The pattern used to split the text.
- matcher: If a `Text_Matcher`, the text is compared using case-sensitivity
rules specified in the matcher. If a `Regex_Matcher`, the term is used as a
regular expression and matched using the associated options.
- case_sensitivity: Specifies if the text values should be compared case
sensitively. The values are compared case sensitively by default.
- only_first: If true, only replace the first match.
- use_regex: If true, the term is used as a regular expression.
> Example
Split the text on any occurrence of the separator `"::"`.
example_split =
text = "Namespace::package::package::Type"
text.split "::" == ["Namespace", "package", "package", "Type"]
text = "Namespace::package::package::Type"
text.split "::" == ["Namespace", "package", "package", "Type"]
> Example
Split the text on a regex pattern.
"abc--def==>ghi".split "[-=>]+" Regex_Matcher.Value == ["abc", "def", "ghi"]
"abc--def==>ghi".split "[-=>]+" use_regex=True == ["abc", "def", "ghi"]
> Example
Split the text on any whitespace.
'abc def\tghi'.split '\\s+' Regex_Matcher.Value == ["abc", "def", "ghi"]
Text.split : Text -> (Text_Matcher | Regex_Matcher) -> Vector Text
Text.split self delimiter="," matcher=Text_Matcher.Case_Sensitive = if delimiter.is_empty then Error.throw (Illegal_Argument.Error "The delimiter cannot be empty.") else
case matcher of
_ : Text_Matcher ->
delimiters = Vector.from_polyglot_array <| case matcher of
Text_Matcher.Case_Sensitive ->
'abc def\tghi'.split '\\s+' use_regex=True == ["abc", "def", "ghi"]
Text.split : Text -> Case_Sensitivity -> Boolean -> Boolean -> Vector Text | Illegal_Argument
Text.split self delimiter="," case_sensitivity=Case_Sensitivity.Sensitive only_first=False use_regex=False = if delimiter.is_empty then Error.throw (Illegal_Argument.Error "The delimiter cannot be empty.") else
case use_regex of
False ->
delimiters = Vector.from_polyglot_array <| case case_sensitivity of
Case_Sensitivity.Sensitive ->
Text_Utils.span_of_all self delimiter
Text_Matcher.Case_Insensitive locale ->
Case_Sensitivity.Insensitive locale ->
Text_Utils.span_of_all_case_insensitive self delimiter locale.java_locale
Vector.new delimiters.length+1 i->
start = if i == 0 then 0 else
@ -340,9 +338,11 @@ Text.split self delimiter="," matcher=Text_Matcher.Case_Sensitive = if delimiter
end = if i == delimiters.length then (Text_Utils.char_length self) else
delimiters.at i . codeunit_start
Text_Utils.substring self start end
_ : Regex_Matcher ->
compiled_pattern = matcher.compile delimiter
compiled_pattern.split self mode=Regex_Mode.All
True ->
Helpers.regex_assume_default_locale case_sensitivity <|
case_insensitive = case_sensitivity.is_case_insensitive_in_memory
compiled_pattern = Regex_2.compile delimiter case_insensitive=case_insensitive
compiled_pattern.split self only_first
## ALIAS Replace Text
Perform a text or regex replace.
@ -360,9 +360,8 @@ Text.split self delimiter="," matcher=Text_Matcher.Case_Sensitive = if delimiter
Arguments:
- term: The string or regex to find.
- replacement: The text to replace matches with.
- case_insensitive: Enables or disables case-insensitive matching. Case
insensitive matching behaves as if it normalises the case of all input
text before matching on it.
- case_sensitivity: Specifies if the text values should be compared case
sensitively.
- only_first: If True, only replace the first match.
- use_regex: If true, the term is used as a regular expression.
@ -438,8 +437,7 @@ Text.replace self term replacement case_sensitivity=Case_Sensitivity.Sensitive o
Helpers.regex_assume_default_locale case_sensitivity <|
case_insensitive = case_sensitivity.is_case_insensitive_in_memory
compiled_pattern = Regex_2.compile term case_insensitive=case_insensitive
compiled_pattern.if_not_error <|
compiled_pattern.replace self replacement only_first
compiled_pattern.replace self replacement only_first
## ALIAS Get Words

96
distribution/lib/Standard/Base/0.0.0-dev/src/Data/Text/Regex/Pattern_2.enso
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@ -17,6 +17,7 @@ import project.Nothing.Nothing
import project.Polyglot.Polyglot
from project.Data.Boolean import Boolean, True, False
from project.Data.Index_Sub_Range import sort_and_merge_ranges
polyglot java import org.enso.base.Replacer_Cache
polyglot java import org.enso.base.Text_Utils
@ -66,7 +67,7 @@ type Pattern_2
go it = case it.next of
Match_Iterator_Value.Next _ match next_it ->
builder.append match
go next_it
@Tail_Call go next_it
Match_Iterator_Value.Last _ -> Nothing
go it
builder.to_vector
@ -93,6 +94,79 @@ type Pattern_2
find_all self input =
self.match_all input . map match_to_group_maybe
## ADVANCED
Splits the `input` text based on the pattern described by `self`.
Arguments:
- input: The text to split based on the pattern described by `self`.
- only_first: If True, only split at the first occurrence.
This method will _always_ return a vector. If no splits take place, the
vector will contain a single element (equal to the original string).
> Example
Split on the first instance of the pattern.
pattern = Regex_2.compile "cd"
input = "abcdefcdghij"
texts = pattern.split input only_first=True
texts . should_equal ["ab", "efcdghij"]
> Example
Split on the all instances of the pattern in the input.
pattern = Regex_2.compile "a"
input = "bacadaeaf"
texts = pattern.split input
texts . should_equal ["b", "c", "d", "e", "f"]
> Example
Returns the original text if there are no matches.
pattern = Regex_2.compile "aa"
input = "abcdefghij"
texts = pattern.split input
texts . should_equal ["abcdefghij"]
split : Text -> Boolean -> Vector Text
split self input only_first=False =
builder = Vector.new_builder
it = Match_Iterator.new self input
go next = case next of
Match_Iterator_Value.Next filler _ next_it ->
builder.append filler.text
next = if only_first then next_it.early_exit else next_it.next
@Tail_Call go next
Match_Iterator_Value.Last filler ->
builder.append filler.text
go it.next
builder.to_vector
## ADVANCED
Takes an input string and returns all the matches as a `Vector Text`.
If the pattern contains marked groups, the values are concatenated
together; otherwise the whole match is returned.
Arguments:
- input: The text to tokenize.
> Example
Split to blocks of 3 characters.
Regex_2.compile '...' . tokenize 'ABCDEF' == ['ABC','DEF']
> Example
Split to blocks of 3 characters taking first and third letters.
Regex_2.compile '(.).(.)' . tokenize 'ABCDEF' == ['AC','DF']
> Example
Split a text on any white space.
Regex_2.compile '(\S+)(?:\s+|$)' . tokenize 'Hello Big\r\nWide\tWorld\nGoodbye!'
== ['Hello','Big','Wide','World','Goodbye!']
tokenize : Text -> Vector Text
tokenize self input =
self.match_all input . map (build_tokenization_output_from_match self _)
## ADVANCED
Replace all occurrences of the pattern described by `self` in the `input`
@ -150,7 +224,6 @@ type Pattern_2
pattern = Regex_2.compile "([a-z]+)"
pattern.replace "foo bar, baz" "[$1]" == "[foo] [bar], [baz]"
replace : Text -> Text -> Boolean -> Text
replace self input replacement only_first=False =
it = Match_Iterator.new self input
@ -329,3 +402,22 @@ read_group_map polyglot_map name =
match_to_group_maybe : Match_2 | Nothing -> Text | Nothing
match_to_group_maybe match =
if match.is_nothing then Nothing else match.text 0
## PRIVATE
Build an output string from a Match_2 resulting from `tokenize`.
See `tokenize`.
build_tokenization_output_from_match : Pattern_2 -> Match_2 -> Text
build_tokenization_output_from_match pattern match =
if pattern.group_count == 1 then match.text 0 else
# Extract the ranges of the spans of all capturing groups
group_numbers = 1.up_to pattern.group_count
spans = group_numbers.map n-> match.span n
ranges = spans.map span-> case span of Span.Value range _ -> range
# Eliminate nested capturing groups by sorting and merging the ranges.
top_level_ranges = sort_and_merge_ranges ranges
# Reconstruct `Spans` from the synthesized `Ranges`, and concatenate.
text_all = case spans.at 0 of Span.Value _ text -> text
top_level_spans = top_level_ranges.map range-> Span.Value range text_all
top_level_spans.map (.text) . join

118
test/Tests/src/Data/Text/Regex_2_Spec.enso
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@ -8,6 +8,7 @@ import Standard.Base.Data.Text.Regex_2
import Standard.Base.Data.Text.Regex_2.No_Such_Group
import Standard.Base.Data.Text.Regex_2.Regex_Syntax_Error
import Standard.Base.Errors.Illegal_Argument.Illegal_Argument
import Standard.Base.IO
from Standard.Base.Data.Text.Regex.Replacer import get_lru_size, replacer_cache_lookup
@ -17,6 +18,13 @@ import Standard.Test.Extensions
polyglot java import org.enso.base.Replacer_Cache
spec =
Test.group "gmt" <|
Test.specify "asdf" <|
IO.println <| Regex_2.compile 's\u{301}' . replace 'sśs\u{301}' '-'
IO.println <| Regex_2.compile 'a\u{301}' . match_all "aááêe xêy"
#Regex_2.compile 'a\u{301}+' . tokenize "aááêe xêy" . should_equal ["ááê", "ê"]
Regex_2.compile 'a\u{301}+' . tokenize 'aa\u{301}a\u{301}êe xêy' . should_equal ['a\u{301}', 'a\u{301}']
Test.group "Compile" <|
Test.specify "should be able to be compiled" <|
pattern = Regex_2.compile "(?<dots>..)" case_insensitive=True
@ -136,55 +144,77 @@ spec =
pattern = Regex_2.compile ""
pattern.find_all "ABC" . should_fail_with Illegal_Argument
##
Test.group "The default regex engine's Pattern.split" <|
engine = Default_Engine.new
Test.group "Pattern_2.split" <|
Test.specify "should be able to `split` on the first instance of the pattern" <|
pattern = Regex_2.compile "cd"
input = "abcdefcdghij"
texts = pattern.split input only_first=True
texts . should_equal ["ab", "efcdghij"]
Test.specify "should be able to `split` on the first instance of the pattern" <|
pattern = engine.compile "cd" []
input = "abcdefghij"
match = pattern.split input mode=Matching_Mode.First
match.length . should_equal 2
match.at 0 . should_equal "ab"
match.at 1 . should_equal "efghij"
Test.specify "should return the original text if there are no matches in first mode" <|
pattern = Regex_2.compile "aa"
input = "abcdefghij"
texts = pattern.split input only_first=True
texts . should_equal ["abcdefghij"]
Test.specify "should return the original text if there are no matches in first mode" <|
pattern = engine.compile "(aa)" []
input = "abcdefghij"
match = pattern.split input mode=Matching_Mode.First
match . should_equal ["abcdefghij"]
Test.specify "should return the original text if there are no matches in all mode" <|
pattern = Regex_2.compile "aa"
input = "abcdefghij"
texts = pattern.split input
texts . should_equal ["abcdefghij"]
Test.specify "should be able to `split` on at most N instances of the pattern in the input" <|
pattern = engine.compile "a" []
input = "bacadaeaf"
match = pattern.split input mode=3
match.length . should_equal 4
match.at 0 . should_equal "b"
match.at 1 . should_equal "c"
match.at 2 . should_equal "d"
match.at 3 . should_equal "eaf"
Test.specify "should be able to `split` on the all instances of the pattern in the input" <|
pattern = Regex_2.compile "a"
pattern.split "bacadaeaf" . should_equal ["b", "c", "d", "e", "f"]
pattern.split "baab" . should_equal ["b", "", "b"]
pattern.split "aaa" . should_equal ["", "", "", ""]
pattern.split "" . should_equal [""]
pattern.split "a" . should_equal ["", ""]
pattern.split "abaca" . should_equal ["", "b", "c", ""]
Test.specify "should `split` on fewer than N instances when there are fewer than N in the input" <|
pattern = engine.compile "a" []
input = "bacadaeaf"
match = pattern.split input mode=10
match.length . should_equal 5
match.at 0 . should_equal "b"
match.at 1 . should_equal "c"
match.at 2 . should_equal "d"
match.at 3 . should_equal "e"
match.at 4 . should_equal "f"
Test.specify "should split without normalization" <|
pattern = Regex_2.compile "s"
pattern.split 'aśsśs\u{301}śb' . should_equal ['aś', 'ś', '\u{301}śb']
Test.specify "should be able to `split` on the all instances of the pattern in the input" <|
pattern = engine.compile "(a)" []
input = "bacadaeaf"
match = pattern.split input mode=Regex_Mode.All
match.length . should_equal 5
match.at 0 . should_equal "b"
match.at 1 . should_equal "c"
match.at 2 . should_equal "d"
match.at 3 . should_equal "e"
match.at 4 . should_equal "f"
Test.group "Pattern_2.tokenize" <|
Test.specify "can tokenize simple regexes without capturing groups"
Regex_2.compile "[a-z]+" . tokenize "1-800-regex-yes" . should_equal ["regex", "yes"]
Regex_2.compile "[a-z]+" case_insensitive=True . tokenize "1-800-REGEX-YES" . should_equal ["REGEX", "YES"]
Regex_2.compile "\d\d" . tokenize "12 hi345 67r890r" . should_equal ["12", "34", "67", "89"]
Test.specify "can tokenize regexes with capturing groups"
Regex_2.compile "(\d\d)\d" . tokenize "12 hi345 67r890r" . should_equal ["34", "89"]
Regex_2.compile "[a-z]+(\d+)" . tokenize "xy blink182 !!matchbox20 foo" . should_equal ["182", "20"]
Regex_2.compile "[a-z]+(\d*)" . tokenize "xy blink182 !!matchbox20 foo" . should_equal ["", "182", "20", ""]
Test.specify "ignores non-capturing groups"
Regex_2.compile "(?:(\d\d)\d)" . tokenize "12 hi345 67r890r" . should_equal ["34", "89"]
Regex_2.compile "(\d\d)(?:\d)" . tokenize "12 hi345 67r890r" . should_equal ["34", "89"]
Regex_2.compile "(?:[a-z]+)(\d+)" . tokenize "xy blink182 !!matchbox20 foo" . should_equal ["182", "20"]
Test.specify "ignores nested groups"
Regex_2.compile "(\d(\d))\d" . tokenize "12 hi345 67r890r" . should_equal ["34", "89"]
Regex_2.compile "[a-z]+((\d)\d*)" . tokenize "xy blink182 !!matchbox20 foo" . should_equal ["182", "20"]
Regex_2.compile "\d(\d(\d\d)\d)\d" . tokenize "012345678901" . should_equal ["1234", "7890"]
Test.specify "handles unicode" <|
Regex_2.compile "[áê]+" . tokenize "aááêe xêy" . should_equal ["ááê", "ê"]
#fail
#Regex_2.compile '[a\u{301}e\u{301}]+' . tokenize 'aááêe xêy' . should_equal ['a\u{301}a\u{301}e\u{301}', 'e\u{301}']
#Regex_2.compile '(?:a\u{301})+' . tokenize 'aááêe xêy' . should_equal ['a\u{301}a\u{301}']
#Regex_2.compile 'a\u{301}' . tokenize 'aááêe xêy' . should_equal ['a\u{301}', 'a\u{301}']
# Wrong
Regex_2.compile 'a\u{301}+' . tokenize 'aa\u{301}a\u{301}êe xêy' . should_equal ['a\u{301}', 'a\u{301}']
# Fails
Regex_2.compile '(?:a\u{301})+' . tokenize 'aa\u{301}a\u{301}êe xêy' . should_equal ['a\u{301}', 'a\u{301}']
# fails
#Regex_2.compile "a\u{301}+" . tokenize "aááêe xêy" . should_equal ["ááê", "ê"]
Regex_2.compile "x([áê]+)y" . tokenize "xáy xêy" . should_equal ["á", "ê"]
Test.specify "examples are correct" <|
Regex_2.compile "..." . tokenize "ABCDEF" . should_equal ["ABC","DEF"]
Regex_2.compile "(.).(.)" . tokenize "ABCDEF" . should_equal ["AC","DF"]
Regex_2.compile "(\S+)(?:\s+|$)" . tokenize 'Hello Big\r\nWide\tWorld\nGoodbye!' . should_equal ["Hello","Big","Wide","World","Goodbye!"]
Test.group "Pattern_2.replace" <|
Test.specify "should be able to `replace` the first instance of the pattern in the input" <|

87
test/Tests/src/Data/Text_Spec.enso
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@ -242,30 +242,42 @@ spec =
'abc'.split '' . should_fail_with Illegal_Argument
Test.specify "should be able to split the text on arbitrary text sequence, case-insensitively" <|
matcher = Text_Matcher.Case_Insensitive
"AbCdABCDabDCba" . split "ab" matcher . should_equal ["", "Cd", "CD", "DCba"]
"abc".split "d" matcher . should_equal ["abc"]
"AAA".split "a" matcher . should_equal ["", "", "", ""]
"baB".split "b" matcher . should_equal ["", "a", ""]
"".split "a" matcher . should_equal [""]
'aŚbS\u{301}c'.split 'ś' matcher . should_equal ['a', 'b', 'c']
'abc'.split '' matcher . should_fail_with Illegal_Argument
"AbCdABCDabDCba" . split "ab" case_sensitivity=Case_Sensitivity.Insensitive . should_equal ["", "Cd", "CD", "DCba"]
"abc".split "d" case_sensitivity=Case_Sensitivity.Insensitive . should_equal ["abc"]
"AAA".split "a" case_sensitivity=Case_Sensitivity.Insensitive . should_equal ["", "", "", ""]
"baB".split "b" case_sensitivity=Case_Sensitivity.Insensitive . should_equal ["", "a", ""]
"".split "a" case_sensitivity=Case_Sensitivity.Insensitive . should_equal [""]
'aŚbS\u{301}c'.split 'ś' case_sensitivity=Case_Sensitivity.Insensitive . should_equal ['a', 'b', 'c']
'abc'.split '' case_sensitivity=Case_Sensitivity.Insensitive . should_fail_with Illegal_Argument
Test.specify "should be able to split the text on Regex patterns" <|
"cababdabe" . split "ab" (Regex_Matcher.Value case_sensitivity=Case_Sensitivity.Sensitive) . should_equal ["c", "", "d", "e"]
"cababdabe" . split "(ab)+" (Regex_Matcher.Value case_sensitivity=Case_Sensitivity.Sensitive) . should_equal ["c", "d", "e"]
"abc" . split "[a-z]" (Regex_Matcher.Value case_sensitivity=Case_Sensitivity.Sensitive) . should_equal ["", "", "", ""]
"abc--def==>ghi".split "[-=>]+" (Regex_Matcher.Value case_sensitivity=Case_Sensitivity.Sensitive) == ["abc", "def", "ghi"]
"abc".split "." (Regex_Matcher.Value case_sensitivity=Case_Sensitivity.Sensitive) . should_equal ["", "", "", ""]
"abc".split "d" (Regex_Matcher.Value case_sensitivity=Case_Sensitivity.Sensitive) . should_equal ["abc"]
".a.".split "\." (Regex_Matcher.Value case_sensitivity=Case_Sensitivity.Sensitive) . should_equal ["", "a", ""]
"".split "a" (Regex_Matcher.Value case_sensitivity=Case_Sensitivity.Sensitive) . should_equal [""]
'aśbs\u{301}c'.split 'ś' (Regex_Matcher.Value case_sensitivity=Case_Sensitivity.Sensitive) . should_equal ['a', 'b', 'c']
'abc'.split '' (Regex_Matcher.Value case_sensitivity=Case_Sensitivity.Sensitive) . should_fail_with Illegal_Argument
"cababdabe" . split "ab" use_regex=True . should_equal ["c", "", "d", "e"]
"cababdabe" . split "(ab)+" use_regex=True . should_equal ["c", "d", "e"]
"abc" . split "[a-z]" use_regex=True . should_equal ["", "", "", ""]
"abc--def==>ghi".split "[-=>]+" use_regex=True == ["abc", "def", "ghi"]
"abc".split "." use_regex=True . should_equal ["", "", "", ""]
"abc".split "d" use_regex=True . should_equal ["abc"]
".a.".split "\." use_regex=True . should_equal ["", "a", ""]
"".split "a" use_regex=True . should_equal [""]
'abc'.split '' use_regex=True . should_fail_with Illegal_Argument
Test.specify "should be able to split the text on Regex patterns, case-insensitively" <|
"CAbaBDaBe" . split "ab" use_regex=True case_sensitivity=Case_Sensitivity.Insensitive . should_equal ["C", "", "D", "e"]
"caBAbdAbe" . split "(ab)+" use_regex=True case_sensitivity=Case_Sensitivity.Insensitive . should_equal ["c", "d", "e"]
"ABc" . split "[a-z]" use_regex=True case_sensitivity=Case_Sensitivity.Insensitive . should_equal ["", "", "", ""]
Test.specify "regex and non-regex `split` handle accented grapheme splitting differently" <|
'aśbs\u{301}c'.split 'ś' use_regex=True . should_equal ['a', 'bs\u{301}c']
'aśbs\u{301}c'.split 'ś' . should_equal ['a', 'b', 'c']
Test.specify "should be able to split the text on UTF-8 whitespace" <|
utf_8_whitespace.split "\s+" (Regex_Matcher.Value case_sensitivity=Case_Sensitivity.Sensitive) . should_equal utf_8_whitespace_split
'abc def\tghi'.split '\\s+' (Regex_Matcher.Value case_sensitivity=Case_Sensitivity.Sensitive) . should_equal ["abc", "def", "ghi"]
utf_8_whitespace.split "\s+" use_regex=True . should_equal utf_8_whitespace_split
'abc def\tghi'.split '\\s+' use_regex=True . should_equal ["abc", "def", "ghi"]
Test.specify "exmples should be correct" <|
"Namespace::package::package::Type".split "::" . should_equal ["Namespace", "package", "package", "Type"]
"abc--def==>ghi".split "[-=>]+" use_regex=True . should_equal ["abc", "def", "ghi"]
'abc def\tghi'.split '\\s+' use_regex=True . should_equal ["abc", "def", "ghi"]
Test.specify "should convert any type to text automatically and using provided methods" <|
t = Auto.Value (Manual.Value 123) . to_text
@ -1363,53 +1375,26 @@ spec =
Test.group "Regex splitting" <|
Test.specify "should be possible on text" <|
splits = "abcde".split "[bd]" Regex_Matcher.Value
splits = "abcde".split "[bd]" use_regex=True
splits.length . should_equal 3
splits.at 0 . should_equal "a"
splits.at 1 . should_equal "c"
splits.at 2 . should_equal "e"
Test.specify "should be possible on unicode text" <|
match = "Korean: 건반 (hangul)".split " " Regex_Matcher.Value
match = "Korean: 건반 (hangul)".split " " use_regex=True
match.length . should_equal 3
match.at 0 . should_equal "Korean:"
match.at 1 . should_equal "건반"
match.at 2 . should_equal "(hangul)"
Test.specify "should be possible in ascii mode" <|
splits = "İiİ".split "\w" (Regex_Matcher.Value match_ascii=True)
splits.length . should_equal 2
splits.at 0 . should_equal "İ"
splits.at 1 . should_equal "İ"
Test.specify "should be possible in case-insensitive mode" <|
splits = "abaBa".split "b" (Regex_Matcher.Value case_sensitivity=Case_Sensitivity.Insensitive)
splits = "abaBa".split "b" use_regex=True case_sensitivity=Case_Sensitivity.Insensitive
splits.length . should_equal 3
splits.at 0 . should_equal "a"
splits.at 1 . should_equal "a"
splits.at 2 . should_equal "a"
Test.specify "should be possible in dot_matches_newline mode" <|
splits = 'ab\nabcd'.split "b." (Regex_Matcher.Value dot_matches_newline=True)
splits.length . should_equal 3
splits.at 0 . should_equal "a"
splits.at 1 . should_equal "a"
splits.at 2 . should_equal "d"
Test.specify "should be possible in multiline mode" <|
text = """
Foo
bar
match = text.split "$" (Regex_Matcher.Value multiline=True)
match.length . should_equal 3
Test.specify "should be possible in comments mode" <|
splits = "abcde".split "[bd] # Split on the letters `b` and `d`" (Regex_Matcher.Value comments=True)
splits.length . should_equal 3
splits.at 0 . should_equal "a"
splits.at 1 . should_equal "c"
splits.at 2 . should_equal "e"
Test.group "Text.replace" <|
Test.specify "should work as in examples" <|
'aaa'.replace 'aa' 'b' . should_equal 'ba'
@ -1486,7 +1471,7 @@ spec =
"Korean: 건반".replace "건반" "keyboard" . should_equal "Korean: keyboard"
Test.specify "regex and non-regex replace handle accented grapheme splitting differently" <|
Test.specify "regex and non-regex `replace` handle accented grapheme splitting differently" <|
'sśs\u{301}' . replace 's' 'O' . should_equal 'Ośs\u{301}'
'sśs\u{301}' . replace 's' 'O' use_regex=True . should_equal 'OśO\u{301}'