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https://github.com/Mercury-Language/mercury.git
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2a792e12b3
Estimated hours taken: 60 Branches: main Added a new module, regex, as a companion to lex. The new module provides functionality for converting conventional Unix-style regular expressions into regexps for use with lex and a number of search and search-and-replace functions for strings. The new functionality has been tested fairly thoroughly (and led to several bugs in lex being identified and fixed.) NEWS: Reported new additions. extras/lex/README: Now just points the reader to README.lex and README.regex. extras/lex/README.lex: extras/lex/README.regex: Added. Brief introductions to the two libraries. extras/lex/lex.automata.m: extras/lex/lex.buf.m: extras/lex/lex.convert_NFA_to_DFA.m: extras/lex/lex.regexp.m: Trivial formatting changes. extras/lex/lex.lexeme.m: Removed the parameter on inst compiled_lexeme. extras/lex/lex.m: Various formatting changes. Added pred offset_from_start/3 which can be used to identify the `current' point in the input stream with respect to lexing. Added pred read_char/3 which can be used to read the `next' char from the input stream without doing any lexing. Added a field init_winner_func to the lexer_instance type. This is used to resolve a bug whereby regular expressions that match the empty string were not being spotted at the start of the input stream. Solved some bugs whereby an exception was incorrectly thrown in some circumstance when the end of the input stream was reached. extras/lex/regex.m: Added. This file defines the functions for converting Unix-style regular expression strings into regexps for use with lex and into regexes for use with the string search(-and-replace) predicates defined in this module. extras/lex/Mmakefile: Improved the installation instructions and included a check target. extras/lex/tests: extras/lex/tests/Mmakefile: extras/lex/tests/test_regex: extras/lex/tests/test_regex.in: extras/lex/tests/test_regex.exp: Added a test suite. extras/lex/tests/cmp_regex_gawk: This program looks for differences in behaviour between gawk and regex. extras/lex/samples/demo.m: Moved to lex_demo.m extras/lex/samples/lex_demo.m: Was demo.m; slightly changed to include a match for unexpected characters. extras/lex/samples/regex_demo.m: Added. extras/lex/samples/Mmakefile: Updated.
919 lines
31 KiB
Plaintext
919 lines
31 KiB
Plaintext
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* Matching against "a"
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> "abracadabra"
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all matches : [{"a", 0, 1}, {"a", 3, 1}, {"a", 5, 1}, {"a", 7, 1}, {"a", 10, 1}]
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replace_first with `<>' : "<>bracadabra"
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replace_all with `<>' : "<>br<>c<>d<>br<>"
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change_first to `<&>' : "<a>bracadabra"
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change_all to `<&>' : "<a>br<a>c<a>d<a>br<a>"
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left_match : {"a", 0, 1}
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right_match : {"a", 10, 1}
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first_match : {"a", 0, 1}
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> "xabracadabra"
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all matches : [{"a", 1, 1}, {"a", 4, 1}, {"a", 6, 1}, {"a", 8, 1}, {"a", 11, 1}]
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replace_first with `<>' : "x<>bracadabra"
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replace_all with `<>' : "x<>br<>c<>d<>br<>"
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change_first to `<&>' : "x<a>bracadabra"
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change_all to `<&>' : "x<a>br<a>c<a>d<a>br<a>"
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right_match : {"a", 11, 1}
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first_match : {"a", 1, 1}
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> "abracadabrax"
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all matches : [{"a", 0, 1}, {"a", 3, 1}, {"a", 5, 1}, {"a", 7, 1}, {"a", 10, 1}]
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replace_first with `<>' : "<>bracadabrax"
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replace_all with `<>' : "<>br<>c<>d<>br<>x"
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change_first to `<&>' : "<a>bracadabrax"
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change_all to `<&>' : "<a>br<a>c<a>d<a>br<a>x"
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left_match : {"a", 0, 1}
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first_match : {"a", 0, 1}
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> "foo"
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all matches : []
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* Matching against "ab"
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> "abracadabra"
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all matches : [{"ab", 0, 2}, {"ab", 7, 2}]
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replace_first with `<>' : "<>racadabra"
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replace_all with `<>' : "<>racad<>ra"
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change_first to `<&>' : "<ab>racadabra"
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change_all to `<&>' : "<ab>racad<ab>ra"
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left_match : {"ab", 0, 2}
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first_match : {"ab", 0, 2}
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> "xabracadabra"
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all matches : [{"ab", 1, 2}, {"ab", 8, 2}]
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replace_first with `<>' : "x<>racadabra"
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replace_all with `<>' : "x<>racad<>ra"
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change_first to `<&>' : "x<ab>racadabra"
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change_all to `<&>' : "x<ab>racad<ab>ra"
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first_match : {"ab", 1, 2}
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> "abracadabrax"
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all matches : [{"ab", 0, 2}, {"ab", 7, 2}]
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replace_first with `<>' : "<>racadabrax"
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replace_all with `<>' : "<>racad<>rax"
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change_first to `<&>' : "<ab>racadabrax"
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change_all to `<&>' : "<ab>racad<ab>rax"
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left_match : {"ab", 0, 2}
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first_match : {"ab", 0, 2}
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> "foo"
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all matches : []
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* Matching against "ab|ad"
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> "abracadabra"
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all matches : [{"ab", 0, 2}, {"ad", 5, 2}, {"ab", 7, 2}]
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replace_first with `<>' : "<>racadabra"
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replace_all with `<>' : "<>rac<><>ra"
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change_first to `<&>' : "<ab>racadabra"
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change_all to `<&>' : "<ab>rac<ad><ab>ra"
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left_match : {"ab", 0, 2}
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first_match : {"ab", 0, 2}
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> "xabracadabra"
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all matches : [{"ab", 1, 2}, {"ad", 6, 2}, {"ab", 8, 2}]
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replace_first with `<>' : "x<>racadabra"
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replace_all with `<>' : "x<>rac<><>ra"
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change_first to `<&>' : "x<ab>racadabra"
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change_all to `<&>' : "x<ab>rac<ad><ab>ra"
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first_match : {"ab", 1, 2}
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> "abracadabrax"
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all matches : [{"ab", 0, 2}, {"ad", 5, 2}, {"ab", 7, 2}]
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replace_first with `<>' : "<>racadabrax"
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replace_all with `<>' : "<>rac<><>rax"
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change_first to `<&>' : "<ab>racadabrax"
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change_all to `<&>' : "<ab>rac<ad><ab>rax"
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left_match : {"ab", 0, 2}
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first_match : {"ab", 0, 2}
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> "foo"
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all matches : []
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* Matching against "a*"
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> "aardvark"
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all matches : [{"aa", 0, 2}, {"", 3, 0}, {"", 4, 0}, {"a", 5, 1}, {"", 7, 0}, {"", 8, 0}]
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replace_first with `<>' : "<>rdvark"
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replace_all with `<>' : "<>r<>d<>v<>r<>k<>"
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change_first to `<&>' : "<aa>rdvark"
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change_all to `<&>' : "<aa>r<>d<>v<a>r<>k<>"
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left_match : {"aa", 0, 2}
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right_match : {"", 8, 0}
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first_match : {"aa", 0, 2}
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> "xaardvark"
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all matches : [{"", 0, 0}, {"aa", 1, 2}, {"", 4, 0}, {"", 5, 0}, {"a", 6, 1}, {"", 8, 0}, {"", 9, 0}]
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replace_first with `<>' : "<>xaardvark"
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replace_all with `<>' : "<>x<>r<>d<>v<>r<>k<>"
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change_first to `<&>' : "<>xaardvark"
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change_all to `<&>' : "<>x<aa>r<>d<>v<a>r<>k<>"
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left_match : {"", 0, 0}
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right_match : {"", 9, 0}
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first_match : {"", 0, 0}
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> "aardvarkx"
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all matches : [{"aa", 0, 2}, {"", 3, 0}, {"", 4, 0}, {"a", 5, 1}, {"", 7, 0}, {"", 8, 0}, {"", 9, 0}]
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replace_first with `<>' : "<>rdvarkx"
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replace_all with `<>' : "<>r<>d<>v<>r<>k<>x<>"
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change_first to `<&>' : "<aa>rdvarkx"
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change_all to `<&>' : "<aa>r<>d<>v<a>r<>k<>x<>"
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left_match : {"aa", 0, 2}
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right_match : {"", 9, 0}
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first_match : {"aa", 0, 2}
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> "foo"
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all matches : [{"", 0, 0}, {"", 1, 0}, {"", 2, 0}, {"", 3, 0}]
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replace_first with `<>' : "<>foo"
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replace_all with `<>' : "<>f<>o<>o<>"
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change_first to `<&>' : "<>foo"
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change_all to `<&>' : "<>f<>o<>o<>"
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left_match : {"", 0, 0}
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right_match : {"", 3, 0}
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first_match : {"", 0, 0}
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* Matching against "aa*"
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> "aardvark"
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all matches : [{"aa", 0, 2}, {"a", 5, 1}]
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replace_first with `<>' : "<>rdvark"
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replace_all with `<>' : "<>rdv<>rk"
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change_first to `<&>' : "<aa>rdvark"
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change_all to `<&>' : "<aa>rdv<a>rk"
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left_match : {"aa", 0, 2}
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first_match : {"aa", 0, 2}
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> "xaardvark"
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all matches : [{"aa", 1, 2}, {"a", 6, 1}]
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replace_first with `<>' : "x<>rdvark"
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replace_all with `<>' : "x<>rdv<>rk"
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change_first to `<&>' : "x<aa>rdvark"
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change_all to `<&>' : "x<aa>rdv<a>rk"
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first_match : {"aa", 1, 2}
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> "aardvarkx"
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all matches : [{"aa", 0, 2}, {"a", 5, 1}]
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replace_first with `<>' : "<>rdvarkx"
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replace_all with `<>' : "<>rdv<>rkx"
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change_first to `<&>' : "<aa>rdvarkx"
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change_all to `<&>' : "<aa>rdv<a>rkx"
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left_match : {"aa", 0, 2}
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first_match : {"aa", 0, 2}
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> "foo"
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all matches : []
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* Matching against "a+"
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> "aardvark"
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all matches : [{"aa", 0, 2}, {"a", 5, 1}]
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replace_first with `<>' : "<>rdvark"
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replace_all with `<>' : "<>rdv<>rk"
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change_first to `<&>' : "<aa>rdvark"
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change_all to `<&>' : "<aa>rdv<a>rk"
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left_match : {"aa", 0, 2}
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first_match : {"aa", 0, 2}
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> "xaardvark"
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all matches : [{"aa", 1, 2}, {"a", 6, 1}]
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replace_first with `<>' : "x<>rdvark"
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replace_all with `<>' : "x<>rdv<>rk"
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change_first to `<&>' : "x<aa>rdvark"
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change_all to `<&>' : "x<aa>rdv<a>rk"
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first_match : {"aa", 1, 2}
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> "aardvarkx"
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all matches : [{"aa", 0, 2}, {"a", 5, 1}]
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replace_first with `<>' : "<>rdvarkx"
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replace_all with `<>' : "<>rdv<>rkx"
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change_first to `<&>' : "<aa>rdvarkx"
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change_all to `<&>' : "<aa>rdv<a>rkx"
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left_match : {"aa", 0, 2}
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first_match : {"aa", 0, 2}
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> "foo"
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all matches : []
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* Matching against "aa+"
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> "aardvark"
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all matches : [{"aa", 0, 2}]
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replace_first with `<>' : "<>rdvark"
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replace_all with `<>' : "<>rdvark"
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change_first to `<&>' : "<aa>rdvark"
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change_all to `<&>' : "<aa>rdvark"
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left_match : {"aa", 0, 2}
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first_match : {"aa", 0, 2}
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> "xaardvark"
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all matches : [{"aa", 1, 2}]
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replace_first with `<>' : "x<>rdvark"
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replace_all with `<>' : "x<>rdvark"
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change_first to `<&>' : "x<aa>rdvark"
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change_all to `<&>' : "x<aa>rdvark"
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first_match : {"aa", 1, 2}
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> "aardvarkx"
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all matches : [{"aa", 0, 2}]
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replace_first with `<>' : "<>rdvarkx"
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replace_all with `<>' : "<>rdvarkx"
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change_first to `<&>' : "<aa>rdvarkx"
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change_all to `<&>' : "<aa>rdvarkx"
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left_match : {"aa", 0, 2}
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first_match : {"aa", 0, 2}
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> "foo"
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all matches : []
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* Matching against "a?"
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> "aardvark"
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all matches : [{"a", 0, 1}, {"a", 1, 1}, {"", 3, 0}, {"", 4, 0}, {"a", 5, 1}, {"", 7, 0}, {"", 8, 0}]
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replace_first with `<>' : "<>ardvark"
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replace_all with `<>' : "<><>r<>d<>v<>r<>k<>"
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change_first to `<&>' : "<a>ardvark"
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change_all to `<&>' : "<a><a>r<>d<>v<a>r<>k<>"
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left_match : {"a", 0, 1}
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right_match : {"", 8, 0}
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first_match : {"a", 0, 1}
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> "xaardvark"
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all matches : [{"", 0, 0}, {"a", 1, 1}, {"a", 2, 1}, {"", 4, 0}, {"", 5, 0}, {"a", 6, 1}, {"", 8, 0}, {"", 9, 0}]
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replace_first with `<>' : "<>xaardvark"
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replace_all with `<>' : "<>x<><>r<>d<>v<>r<>k<>"
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change_first to `<&>' : "<>xaardvark"
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change_all to `<&>' : "<>x<a><a>r<>d<>v<a>r<>k<>"
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left_match : {"", 0, 0}
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right_match : {"", 9, 0}
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first_match : {"", 0, 0}
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> "aardvarkx"
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all matches : [{"a", 0, 1}, {"a", 1, 1}, {"", 3, 0}, {"", 4, 0}, {"a", 5, 1}, {"", 7, 0}, {"", 8, 0}, {"", 9, 0}]
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replace_first with `<>' : "<>ardvarkx"
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replace_all with `<>' : "<><>r<>d<>v<>r<>k<>x<>"
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change_first to `<&>' : "<a>ardvarkx"
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change_all to `<&>' : "<a><a>r<>d<>v<a>r<>k<>x<>"
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left_match : {"a", 0, 1}
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right_match : {"", 9, 0}
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first_match : {"a", 0, 1}
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> "foo"
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all matches : [{"", 0, 0}, {"", 1, 0}, {"", 2, 0}, {"", 3, 0}]
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replace_first with `<>' : "<>foo"
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replace_all with `<>' : "<>f<>o<>o<>"
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change_first to `<&>' : "<>foo"
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change_all to `<&>' : "<>f<>o<>o<>"
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left_match : {"", 0, 0}
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right_match : {"", 3, 0}
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first_match : {"", 0, 0}
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* Matching against "aa?"
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> "aardvark"
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all matches : [{"aa", 0, 2}, {"a", 5, 1}]
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replace_first with `<>' : "<>rdvark"
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replace_all with `<>' : "<>rdv<>rk"
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change_first to `<&>' : "<aa>rdvark"
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change_all to `<&>' : "<aa>rdv<a>rk"
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left_match : {"aa", 0, 2}
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first_match : {"aa", 0, 2}
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> "xaardvark"
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all matches : [{"aa", 1, 2}, {"a", 6, 1}]
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replace_first with `<>' : "x<>rdvark"
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replace_all with `<>' : "x<>rdv<>rk"
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change_first to `<&>' : "x<aa>rdvark"
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change_all to `<&>' : "x<aa>rdv<a>rk"
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first_match : {"aa", 1, 2}
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> "aardvarkx"
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all matches : [{"aa", 0, 2}, {"a", 5, 1}]
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replace_first with `<>' : "<>rdvarkx"
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replace_all with `<>' : "<>rdv<>rkx"
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change_first to `<&>' : "<aa>rdvarkx"
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change_all to `<&>' : "<aa>rdv<a>rkx"
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left_match : {"aa", 0, 2}
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first_match : {"aa", 0, 2}
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> "foo"
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all matches : []
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* Matching against "(ab|ad)+"
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> "abracadabra"
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all matches : [{"ab", 0, 2}, {"adab", 5, 4}]
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replace_first with `<>' : "<>racadabra"
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replace_all with `<>' : "<>rac<>ra"
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change_first to `<&>' : "<ab>racadabra"
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change_all to `<&>' : "<ab>rac<adab>ra"
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left_match : {"ab", 0, 2}
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first_match : {"ab", 0, 2}
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> "xabracadabra"
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all matches : [{"ab", 1, 2}, {"adab", 6, 4}]
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replace_first with `<>' : "x<>racadabra"
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replace_all with `<>' : "x<>rac<>ra"
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change_first to `<&>' : "x<ab>racadabra"
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change_all to `<&>' : "x<ab>rac<adab>ra"
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first_match : {"ab", 1, 2}
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> "abracadabrax"
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all matches : [{"ab", 0, 2}, {"adab", 5, 4}]
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replace_first with `<>' : "<>racadabrax"
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replace_all with `<>' : "<>rac<>rax"
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change_first to `<&>' : "<ab>racadabrax"
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change_all to `<&>' : "<ab>rac<adab>rax"
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left_match : {"ab", 0, 2}
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first_match : {"ab", 0, 2}
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> "foo"
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all matches : []
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* Matching against "[abcd]"
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> "abracadabra"
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all matches : [{"a", 0, 1}, {"b", 1, 1}, {"a", 3, 1}, {"c", 4, 1}, {"a", 5, 1}, {"d", 6, 1}, {"a", 7, 1}, {"b", 8, 1}, {"a", 10, 1}]
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replace_first with `<>' : "<>bracadabra"
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replace_all with `<>' : "<><>r<><><><><><>r<>"
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change_first to `<&>' : "<a>bracadabra"
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change_all to `<&>' : "<a><b>r<a><c><a><d><a><b>r<a>"
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left_match : {"a", 0, 1}
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right_match : {"a", 10, 1}
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first_match : {"a", 0, 1}
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> "xabracadabra"
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all matches : [{"a", 1, 1}, {"b", 2, 1}, {"a", 4, 1}, {"c", 5, 1}, {"a", 6, 1}, {"d", 7, 1}, {"a", 8, 1}, {"b", 9, 1}, {"a", 11, 1}]
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replace_first with `<>' : "x<>bracadabra"
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replace_all with `<>' : "x<><>r<><><><><><>r<>"
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change_first to `<&>' : "x<a>bracadabra"
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change_all to `<&>' : "x<a><b>r<a><c><a><d><a><b>r<a>"
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right_match : {"a", 11, 1}
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first_match : {"a", 1, 1}
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> "abracadabrax"
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all matches : [{"a", 0, 1}, {"b", 1, 1}, {"a", 3, 1}, {"c", 4, 1}, {"a", 5, 1}, {"d", 6, 1}, {"a", 7, 1}, {"b", 8, 1}, {"a", 10, 1}]
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replace_first with `<>' : "<>bracadabrax"
|
|
replace_all with `<>' : "<><>r<><><><><><>r<>x"
|
|
change_first to `<&>' : "<a>bracadabrax"
|
|
change_all to `<&>' : "<a><b>r<a><c><a><d><a><b>r<a>x"
|
|
left_match : {"a", 0, 1}
|
|
first_match : {"a", 0, 1}
|
|
|
|
> "foo"
|
|
all matches : []
|
|
|
|
|
|
* Matching against "[ab-d]"
|
|
|
|
> "abracadabra"
|
|
all matches : [{"a", 0, 1}, {"b", 1, 1}, {"a", 3, 1}, {"c", 4, 1}, {"a", 5, 1}, {"d", 6, 1}, {"a", 7, 1}, {"b", 8, 1}, {"a", 10, 1}]
|
|
replace_first with `<>' : "<>bracadabra"
|
|
replace_all with `<>' : "<><>r<><><><><><>r<>"
|
|
change_first to `<&>' : "<a>bracadabra"
|
|
change_all to `<&>' : "<a><b>r<a><c><a><d><a><b>r<a>"
|
|
left_match : {"a", 0, 1}
|
|
right_match : {"a", 10, 1}
|
|
first_match : {"a", 0, 1}
|
|
|
|
> "xabracadabra"
|
|
all matches : [{"a", 1, 1}, {"b", 2, 1}, {"a", 4, 1}, {"c", 5, 1}, {"a", 6, 1}, {"d", 7, 1}, {"a", 8, 1}, {"b", 9, 1}, {"a", 11, 1}]
|
|
replace_first with `<>' : "x<>bracadabra"
|
|
replace_all with `<>' : "x<><>r<><><><><><>r<>"
|
|
change_first to `<&>' : "x<a>bracadabra"
|
|
change_all to `<&>' : "x<a><b>r<a><c><a><d><a><b>r<a>"
|
|
right_match : {"a", 11, 1}
|
|
first_match : {"a", 1, 1}
|
|
|
|
> "abracadabrax"
|
|
all matches : [{"a", 0, 1}, {"b", 1, 1}, {"a", 3, 1}, {"c", 4, 1}, {"a", 5, 1}, {"d", 6, 1}, {"a", 7, 1}, {"b", 8, 1}, {"a", 10, 1}]
|
|
replace_first with `<>' : "<>bracadabrax"
|
|
replace_all with `<>' : "<><>r<><><><><><>r<>x"
|
|
change_first to `<&>' : "<a>bracadabrax"
|
|
change_all to `<&>' : "<a><b>r<a><c><a><d><a><b>r<a>x"
|
|
left_match : {"a", 0, 1}
|
|
first_match : {"a", 0, 1}
|
|
|
|
> "foo"
|
|
all matches : []
|
|
|
|
|
|
* Matching against "[]]"
|
|
|
|
> "]foo["
|
|
all matches : [{"]", 0, 1}]
|
|
replace_first with `<>' : "<>foo["
|
|
replace_all with `<>' : "<>foo["
|
|
change_first to `<&>' : "<]>foo["
|
|
change_all to `<&>' : "<]>foo["
|
|
left_match : {"]", 0, 1}
|
|
first_match : {"]", 0, 1}
|
|
|
|
> "[foo]"
|
|
all matches : [{"]", 4, 1}]
|
|
replace_first with `<>' : "[foo<>"
|
|
replace_all with `<>' : "[foo<>"
|
|
change_first to `<&>' : "[foo<]>"
|
|
change_all to `<&>' : "[foo<]>"
|
|
right_match : {"]", 4, 1}
|
|
first_match : {"]", 4, 1}
|
|
|
|
> "foo"
|
|
all matches : []
|
|
|
|
|
|
* Matching against "[[-]]"
|
|
|
|
> "]foo["
|
|
all matches : [{"]", 0, 1}, {"[", 4, 1}]
|
|
replace_first with `<>' : "<>foo["
|
|
replace_all with `<>' : "<>foo<>"
|
|
change_first to `<&>' : "<]>foo["
|
|
change_all to `<&>' : "<]>foo<[>"
|
|
left_match : {"]", 0, 1}
|
|
right_match : {"[", 4, 1}
|
|
first_match : {"]", 0, 1}
|
|
|
|
> "[foo]"
|
|
all matches : [{"[", 0, 1}, {"]", 4, 1}]
|
|
replace_first with `<>' : "<>foo]"
|
|
replace_all with `<>' : "<>foo<>"
|
|
change_first to `<&>' : "<[>foo]"
|
|
change_all to `<&>' : "<[>foo<]>"
|
|
left_match : {"[", 0, 1}
|
|
right_match : {"]", 4, 1}
|
|
first_match : {"[", 0, 1}
|
|
|
|
> "foo"
|
|
all matches : []
|
|
|
|
|
|
* Matching against "\["
|
|
|
|
> "]foo["
|
|
all matches : [{"[", 4, 1}]
|
|
replace_first with `<>' : "]foo<>"
|
|
replace_all with `<>' : "]foo<>"
|
|
change_first to `<&>' : "]foo<[>"
|
|
change_all to `<&>' : "]foo<[>"
|
|
right_match : {"[", 4, 1}
|
|
first_match : {"[", 4, 1}
|
|
|
|
> "[foo]"
|
|
all matches : [{"[", 0, 1}]
|
|
replace_first with `<>' : "<>foo]"
|
|
replace_all with `<>' : "<>foo]"
|
|
change_first to `<&>' : "<[>foo]"
|
|
change_all to `<&>' : "<[>foo]"
|
|
left_match : {"[", 0, 1}
|
|
first_match : {"[", 0, 1}
|
|
|
|
> "foo"
|
|
all matches : []
|
|
|
|
|
|
* Matching against "[^abcd]"
|
|
|
|
> "abracadabra"
|
|
all matches : [{"r", 2, 1}, {"r", 9, 1}]
|
|
replace_first with `<>' : "ab<>acadabra"
|
|
replace_all with `<>' : "ab<>acadab<>a"
|
|
change_first to `<&>' : "ab<r>acadabra"
|
|
change_all to `<&>' : "ab<r>acadab<r>a"
|
|
first_match : {"r", 2, 1}
|
|
|
|
> "xabracadabra"
|
|
all matches : [{"x", 0, 1}, {"r", 3, 1}, {"r", 10, 1}]
|
|
replace_first with `<>' : "<>abracadabra"
|
|
replace_all with `<>' : "<>ab<>acadab<>a"
|
|
change_first to `<&>' : "<x>abracadabra"
|
|
change_all to `<&>' : "<x>ab<r>acadab<r>a"
|
|
left_match : {"x", 0, 1}
|
|
first_match : {"x", 0, 1}
|
|
|
|
> "abracadabrax"
|
|
all matches : [{"r", 2, 1}, {"r", 9, 1}, {"x", 11, 1}]
|
|
replace_first with `<>' : "ab<>acadabrax"
|
|
replace_all with `<>' : "ab<>acadab<>a<>"
|
|
change_first to `<&>' : "ab<r>acadabrax"
|
|
change_all to `<&>' : "ab<r>acadab<r>a<x>"
|
|
right_match : {"x", 11, 1}
|
|
first_match : {"r", 2, 1}
|
|
|
|
> "foo"
|
|
all matches : [{"f", 0, 1}, {"o", 1, 1}, {"o", 2, 1}]
|
|
replace_first with `<>' : "<>oo"
|
|
replace_all with `<>' : "<><><>"
|
|
change_first to `<&>' : "<f>oo"
|
|
change_all to `<&>' : "<f><o><o>"
|
|
left_match : {"f", 0, 1}
|
|
right_match : {"o", 2, 1}
|
|
first_match : {"f", 0, 1}
|
|
|
|
|
|
* Matching against "[^ab-d]"
|
|
|
|
> "abracadabra"
|
|
all matches : [{"r", 2, 1}, {"r", 9, 1}]
|
|
replace_first with `<>' : "ab<>acadabra"
|
|
replace_all with `<>' : "ab<>acadab<>a"
|
|
change_first to `<&>' : "ab<r>acadabra"
|
|
change_all to `<&>' : "ab<r>acadab<r>a"
|
|
first_match : {"r", 2, 1}
|
|
|
|
> "xabracadabra"
|
|
all matches : [{"x", 0, 1}, {"r", 3, 1}, {"r", 10, 1}]
|
|
replace_first with `<>' : "<>abracadabra"
|
|
replace_all with `<>' : "<>ab<>acadab<>a"
|
|
change_first to `<&>' : "<x>abracadabra"
|
|
change_all to `<&>' : "<x>ab<r>acadab<r>a"
|
|
left_match : {"x", 0, 1}
|
|
first_match : {"x", 0, 1}
|
|
|
|
> "abracadabrax"
|
|
all matches : [{"r", 2, 1}, {"r", 9, 1}, {"x", 11, 1}]
|
|
replace_first with `<>' : "ab<>acadabrax"
|
|
replace_all with `<>' : "ab<>acadab<>a<>"
|
|
change_first to `<&>' : "ab<r>acadabrax"
|
|
change_all to `<&>' : "ab<r>acadab<r>a<x>"
|
|
right_match : {"x", 11, 1}
|
|
first_match : {"r", 2, 1}
|
|
|
|
> "foo"
|
|
all matches : [{"f", 0, 1}, {"o", 1, 1}, {"o", 2, 1}]
|
|
replace_first with `<>' : "<>oo"
|
|
replace_all with `<>' : "<><><>"
|
|
change_first to `<&>' : "<f>oo"
|
|
change_all to `<&>' : "<f><o><o>"
|
|
left_match : {"f", 0, 1}
|
|
right_match : {"o", 2, 1}
|
|
first_match : {"f", 0, 1}
|
|
|
|
|
|
* Matching against "[^]]"
|
|
|
|
> "]foo["
|
|
all matches : [{"f", 1, 1}, {"o", 2, 1}, {"o", 3, 1}, {"[", 4, 1}]
|
|
replace_first with `<>' : "]<>oo["
|
|
replace_all with `<>' : "]<><><><>"
|
|
change_first to `<&>' : "]<f>oo["
|
|
change_all to `<&>' : "]<f><o><o><[>"
|
|
right_match : {"[", 4, 1}
|
|
first_match : {"f", 1, 1}
|
|
|
|
> "[foo]"
|
|
all matches : [{"[", 0, 1}, {"f", 1, 1}, {"o", 2, 1}, {"o", 3, 1}]
|
|
replace_first with `<>' : "<>foo]"
|
|
replace_all with `<>' : "<><><><>]"
|
|
change_first to `<&>' : "<[>foo]"
|
|
change_all to `<&>' : "<[><f><o><o>]"
|
|
left_match : {"[", 0, 1}
|
|
first_match : {"[", 0, 1}
|
|
|
|
> "foo"
|
|
all matches : [{"f", 0, 1}, {"o", 1, 1}, {"o", 2, 1}]
|
|
replace_first with `<>' : "<>oo"
|
|
replace_all with `<>' : "<><><>"
|
|
change_first to `<&>' : "<f>oo"
|
|
change_all to `<&>' : "<f><o><o>"
|
|
left_match : {"f", 0, 1}
|
|
right_match : {"o", 2, 1}
|
|
first_match : {"f", 0, 1}
|
|
|
|
|
|
* Matching against "[^[-]]"
|
|
|
|
> "]foo["
|
|
all matches : [{"f", 1, 1}, {"o", 2, 1}, {"o", 3, 1}]
|
|
replace_first with `<>' : "]<>oo["
|
|
replace_all with `<>' : "]<><><>["
|
|
change_first to `<&>' : "]<f>oo["
|
|
change_all to `<&>' : "]<f><o><o>["
|
|
first_match : {"f", 1, 1}
|
|
|
|
> "[foo]"
|
|
all matches : [{"f", 1, 1}, {"o", 2, 1}, {"o", 3, 1}]
|
|
replace_first with `<>' : "[<>oo]"
|
|
replace_all with `<>' : "[<><><>]"
|
|
change_first to `<&>' : "[<f>oo]"
|
|
change_all to `<&>' : "[<f><o><o>]"
|
|
first_match : {"f", 1, 1}
|
|
|
|
> "foo"
|
|
all matches : [{"f", 0, 1}, {"o", 1, 1}, {"o", 2, 1}]
|
|
replace_first with `<>' : "<>oo"
|
|
replace_all with `<>' : "<><><>"
|
|
change_first to `<&>' : "<f>oo"
|
|
change_all to `<&>' : "<f><o><o>"
|
|
left_match : {"f", 0, 1}
|
|
right_match : {"o", 2, 1}
|
|
first_match : {"f", 0, 1}
|
|
|
|
|
|
* Matching against ".*"
|
|
|
|
> "abracadabra"
|
|
all matches : [{"abracadabra", 0, 11}]
|
|
replace_first with `<>' : "<>"
|
|
replace_all with `<>' : "<>"
|
|
change_first to `<&>' : "<abracadabra>"
|
|
change_all to `<&>' : "<abracadabra>"
|
|
exact_match
|
|
left_match : {"abracadabra", 0, 11}
|
|
right_match : {"abracadabra", 0, 11}
|
|
first_match : {"abracadabra", 0, 11}
|
|
|
|
> "xabracadabra"
|
|
all matches : [{"xabracadabra", 0, 12}]
|
|
replace_first with `<>' : "<>"
|
|
replace_all with `<>' : "<>"
|
|
change_first to `<&>' : "<xabracadabra>"
|
|
change_all to `<&>' : "<xabracadabra>"
|
|
exact_match
|
|
left_match : {"xabracadabra", 0, 12}
|
|
right_match : {"xabracadabra", 0, 12}
|
|
first_match : {"xabracadabra", 0, 12}
|
|
|
|
> "abracadabrax"
|
|
all matches : [{"abracadabrax", 0, 12}]
|
|
replace_first with `<>' : "<>"
|
|
replace_all with `<>' : "<>"
|
|
change_first to `<&>' : "<abracadabrax>"
|
|
change_all to `<&>' : "<abracadabrax>"
|
|
exact_match
|
|
left_match : {"abracadabrax", 0, 12}
|
|
right_match : {"abracadabrax", 0, 12}
|
|
first_match : {"abracadabrax", 0, 12}
|
|
|
|
> "foo"
|
|
all matches : [{"foo", 0, 3}]
|
|
replace_first with `<>' : "<>"
|
|
replace_all with `<>' : "<>"
|
|
change_first to `<&>' : "<foo>"
|
|
change_all to `<&>' : "<foo>"
|
|
exact_match
|
|
left_match : {"foo", 0, 3}
|
|
right_match : {"foo", 0, 3}
|
|
first_match : {"foo", 0, 3}
|
|
|
|
|
|
* Matching against "."
|
|
|
|
> "abracadabra"
|
|
all matches : [{"a", 0, 1}, {"b", 1, 1}, {"r", 2, 1}, {"a", 3, 1}, {"c", 4, 1}, {"a", 5, 1}, {"d", 6, 1}, {"a", 7, 1}, {"b", 8, 1}, {"r", 9, 1}, {"a", 10, 1}]
|
|
replace_first with `<>' : "<>bracadabra"
|
|
replace_all with `<>' : "<><><><><><><><><><><>"
|
|
change_first to `<&>' : "<a>bracadabra"
|
|
change_all to `<&>' : "<a><b><r><a><c><a><d><a><b><r><a>"
|
|
left_match : {"a", 0, 1}
|
|
right_match : {"a", 10, 1}
|
|
first_match : {"a", 0, 1}
|
|
|
|
> "xabracadabra"
|
|
all matches : [{"x", 0, 1}, {"a", 1, 1}, {"b", 2, 1}, {"r", 3, 1}, {"a", 4, 1}, {"c", 5, 1}, {"a", 6, 1}, {"d", 7, 1}, {"a", 8, 1}, {"b", 9, 1}, {"r", 10, 1}, {"a", 11, 1}]
|
|
replace_first with `<>' : "<>abracadabra"
|
|
replace_all with `<>' : "<><><><><><><><><><><><>"
|
|
change_first to `<&>' : "<x>abracadabra"
|
|
change_all to `<&>' : "<x><a><b><r><a><c><a><d><a><b><r><a>"
|
|
left_match : {"x", 0, 1}
|
|
right_match : {"a", 11, 1}
|
|
first_match : {"x", 0, 1}
|
|
|
|
> "abracadabrax"
|
|
all matches : [{"a", 0, 1}, {"b", 1, 1}, {"r", 2, 1}, {"a", 3, 1}, {"c", 4, 1}, {"a", 5, 1}, {"d", 6, 1}, {"a", 7, 1}, {"b", 8, 1}, {"r", 9, 1}, {"a", 10, 1}, {"x", 11, 1}]
|
|
replace_first with `<>' : "<>bracadabrax"
|
|
replace_all with `<>' : "<><><><><><><><><><><><>"
|
|
change_first to `<&>' : "<a>bracadabrax"
|
|
change_all to `<&>' : "<a><b><r><a><c><a><d><a><b><r><a><x>"
|
|
left_match : {"a", 0, 1}
|
|
right_match : {"x", 11, 1}
|
|
first_match : {"a", 0, 1}
|
|
|
|
> "foo"
|
|
all matches : [{"f", 0, 1}, {"o", 1, 1}, {"o", 2, 1}]
|
|
replace_first with `<>' : "<>oo"
|
|
replace_all with `<>' : "<><><>"
|
|
change_first to `<&>' : "<f>oo"
|
|
change_all to `<&>' : "<f><o><o>"
|
|
left_match : {"f", 0, 1}
|
|
right_match : {"o", 2, 1}
|
|
first_match : {"f", 0, 1}
|
|
|
|
|
|
* Matching against "a|b"
|
|
|
|
> "abracadabra"
|
|
all matches : [{"a", 0, 1}, {"b", 1, 1}, {"a", 3, 1}, {"a", 5, 1}, {"a", 7, 1}, {"b", 8, 1}, {"a", 10, 1}]
|
|
replace_first with `<>' : "<>bracadabra"
|
|
replace_all with `<>' : "<><>r<>c<>d<><>r<>"
|
|
change_first to `<&>' : "<a>bracadabra"
|
|
change_all to `<&>' : "<a><b>r<a>c<a>d<a><b>r<a>"
|
|
left_match : {"a", 0, 1}
|
|
right_match : {"a", 10, 1}
|
|
first_match : {"a", 0, 1}
|
|
|
|
> "xabracadabra"
|
|
all matches : [{"a", 1, 1}, {"b", 2, 1}, {"a", 4, 1}, {"a", 6, 1}, {"a", 8, 1}, {"b", 9, 1}, {"a", 11, 1}]
|
|
replace_first with `<>' : "x<>bracadabra"
|
|
replace_all with `<>' : "x<><>r<>c<>d<><>r<>"
|
|
change_first to `<&>' : "x<a>bracadabra"
|
|
change_all to `<&>' : "x<a><b>r<a>c<a>d<a><b>r<a>"
|
|
right_match : {"a", 11, 1}
|
|
first_match : {"a", 1, 1}
|
|
|
|
> "abracadabrax"
|
|
all matches : [{"a", 0, 1}, {"b", 1, 1}, {"a", 3, 1}, {"a", 5, 1}, {"a", 7, 1}, {"b", 8, 1}, {"a", 10, 1}]
|
|
replace_first with `<>' : "<>bracadabrax"
|
|
replace_all with `<>' : "<><>r<>c<>d<><>r<>x"
|
|
change_first to `<&>' : "<a>bracadabrax"
|
|
change_all to `<&>' : "<a><b>r<a>c<a>d<a><b>r<a>x"
|
|
left_match : {"a", 0, 1}
|
|
first_match : {"a", 0, 1}
|
|
|
|
> "foo"
|
|
all matches : []
|
|
|
|
|
|
* Matching against "(a|b)"
|
|
|
|
> "abracadabra"
|
|
all matches : [{"a", 0, 1}, {"b", 1, 1}, {"a", 3, 1}, {"a", 5, 1}, {"a", 7, 1}, {"b", 8, 1}, {"a", 10, 1}]
|
|
replace_first with `<>' : "<>bracadabra"
|
|
replace_all with `<>' : "<><>r<>c<>d<><>r<>"
|
|
change_first to `<&>' : "<a>bracadabra"
|
|
change_all to `<&>' : "<a><b>r<a>c<a>d<a><b>r<a>"
|
|
left_match : {"a", 0, 1}
|
|
right_match : {"a", 10, 1}
|
|
first_match : {"a", 0, 1}
|
|
|
|
> "xabracadabra"
|
|
all matches : [{"a", 1, 1}, {"b", 2, 1}, {"a", 4, 1}, {"a", 6, 1}, {"a", 8, 1}, {"b", 9, 1}, {"a", 11, 1}]
|
|
replace_first with `<>' : "x<>bracadabra"
|
|
replace_all with `<>' : "x<><>r<>c<>d<><>r<>"
|
|
change_first to `<&>' : "x<a>bracadabra"
|
|
change_all to `<&>' : "x<a><b>r<a>c<a>d<a><b>r<a>"
|
|
right_match : {"a", 11, 1}
|
|
first_match : {"a", 1, 1}
|
|
|
|
> "abracadabrax"
|
|
all matches : [{"a", 0, 1}, {"b", 1, 1}, {"a", 3, 1}, {"a", 5, 1}, {"a", 7, 1}, {"b", 8, 1}, {"a", 10, 1}]
|
|
replace_first with `<>' : "<>bracadabrax"
|
|
replace_all with `<>' : "<><>r<>c<>d<><>r<>x"
|
|
change_first to `<&>' : "<a>bracadabrax"
|
|
change_all to `<&>' : "<a><b>r<a>c<a>d<a><b>r<a>x"
|
|
left_match : {"a", 0, 1}
|
|
first_match : {"a", 0, 1}
|
|
|
|
> "foo"
|
|
all matches : []
|
|
|
|
|
|
* Matching against "a|(b|c)"
|
|
|
|
> "abracadabra"
|
|
all matches : [{"a", 0, 1}, {"b", 1, 1}, {"a", 3, 1}, {"c", 4, 1}, {"a", 5, 1}, {"a", 7, 1}, {"b", 8, 1}, {"a", 10, 1}]
|
|
replace_first with `<>' : "<>bracadabra"
|
|
replace_all with `<>' : "<><>r<><><>d<><>r<>"
|
|
change_first to `<&>' : "<a>bracadabra"
|
|
change_all to `<&>' : "<a><b>r<a><c><a>d<a><b>r<a>"
|
|
left_match : {"a", 0, 1}
|
|
right_match : {"a", 10, 1}
|
|
first_match : {"a", 0, 1}
|
|
|
|
> "xabracadabra"
|
|
all matches : [{"a", 1, 1}, {"b", 2, 1}, {"a", 4, 1}, {"c", 5, 1}, {"a", 6, 1}, {"a", 8, 1}, {"b", 9, 1}, {"a", 11, 1}]
|
|
replace_first with `<>' : "x<>bracadabra"
|
|
replace_all with `<>' : "x<><>r<><><>d<><>r<>"
|
|
change_first to `<&>' : "x<a>bracadabra"
|
|
change_all to `<&>' : "x<a><b>r<a><c><a>d<a><b>r<a>"
|
|
right_match : {"a", 11, 1}
|
|
first_match : {"a", 1, 1}
|
|
|
|
> "abracadabrax"
|
|
all matches : [{"a", 0, 1}, {"b", 1, 1}, {"a", 3, 1}, {"c", 4, 1}, {"a", 5, 1}, {"a", 7, 1}, {"b", 8, 1}, {"a", 10, 1}]
|
|
replace_first with `<>' : "<>bracadabrax"
|
|
replace_all with `<>' : "<><>r<><><>d<><>r<>x"
|
|
change_first to `<&>' : "<a>bracadabrax"
|
|
change_all to `<&>' : "<a><b>r<a><c><a>d<a><b>r<a>x"
|
|
left_match : {"a", 0, 1}
|
|
first_match : {"a", 0, 1}
|
|
|
|
> "foo"
|
|
all matches : []
|
|
|
|
|
|
* Matching against "(a|(b|c))"
|
|
|
|
> "abracadabra"
|
|
all matches : [{"a", 0, 1}, {"b", 1, 1}, {"a", 3, 1}, {"c", 4, 1}, {"a", 5, 1}, {"a", 7, 1}, {"b", 8, 1}, {"a", 10, 1}]
|
|
replace_first with `<>' : "<>bracadabra"
|
|
replace_all with `<>' : "<><>r<><><>d<><>r<>"
|
|
change_first to `<&>' : "<a>bracadabra"
|
|
change_all to `<&>' : "<a><b>r<a><c><a>d<a><b>r<a>"
|
|
left_match : {"a", 0, 1}
|
|
right_match : {"a", 10, 1}
|
|
first_match : {"a", 0, 1}
|
|
|
|
> "xabracadabra"
|
|
all matches : [{"a", 1, 1}, {"b", 2, 1}, {"a", 4, 1}, {"c", 5, 1}, {"a", 6, 1}, {"a", 8, 1}, {"b", 9, 1}, {"a", 11, 1}]
|
|
replace_first with `<>' : "x<>bracadabra"
|
|
replace_all with `<>' : "x<><>r<><><>d<><>r<>"
|
|
change_first to `<&>' : "x<a>bracadabra"
|
|
change_all to `<&>' : "x<a><b>r<a><c><a>d<a><b>r<a>"
|
|
right_match : {"a", 11, 1}
|
|
first_match : {"a", 1, 1}
|
|
|
|
> "abracadabrax"
|
|
all matches : [{"a", 0, 1}, {"b", 1, 1}, {"a", 3, 1}, {"c", 4, 1}, {"a", 5, 1}, {"a", 7, 1}, {"b", 8, 1}, {"a", 10, 1}]
|
|
replace_first with `<>' : "<>bracadabrax"
|
|
replace_all with `<>' : "<><>r<><><>d<><>r<>x"
|
|
change_first to `<&>' : "<a>bracadabrax"
|
|
change_all to `<&>' : "<a><b>r<a><c><a>d<a><b>r<a>x"
|
|
left_match : {"a", 0, 1}
|
|
first_match : {"a", 0, 1}
|
|
|
|
> "foo"
|
|
all matches : []
|
|
|
|
|
|
* Matching against "a|b+"
|
|
|
|
> "abbracadabra"
|
|
all matches : [{"a", 0, 1}, {"bb", 1, 2}, {"a", 4, 1}, {"a", 6, 1}, {"a", 8, 1}, {"b", 9, 1}, {"a", 11, 1}]
|
|
replace_first with `<>' : "<>bbracadabra"
|
|
replace_all with `<>' : "<><>r<>c<>d<><>r<>"
|
|
change_first to `<&>' : "<a>bbracadabra"
|
|
change_all to `<&>' : "<a><bb>r<a>c<a>d<a><b>r<a>"
|
|
left_match : {"a", 0, 1}
|
|
right_match : {"a", 11, 1}
|
|
first_match : {"a", 0, 1}
|
|
|
|
> "xabbracadabra"
|
|
all matches : [{"a", 1, 1}, {"bb", 2, 2}, {"a", 5, 1}, {"a", 7, 1}, {"a", 9, 1}, {"b", 10, 1}, {"a", 12, 1}]
|
|
replace_first with `<>' : "x<>bbracadabra"
|
|
replace_all with `<>' : "x<><>r<>c<>d<><>r<>"
|
|
change_first to `<&>' : "x<a>bbracadabra"
|
|
change_all to `<&>' : "x<a><bb>r<a>c<a>d<a><b>r<a>"
|
|
right_match : {"a", 12, 1}
|
|
first_match : {"a", 1, 1}
|
|
|
|
> "abbracadabrax"
|
|
all matches : [{"a", 0, 1}, {"bb", 1, 2}, {"a", 4, 1}, {"a", 6, 1}, {"a", 8, 1}, {"b", 9, 1}, {"a", 11, 1}]
|
|
replace_first with `<>' : "<>bbracadabrax"
|
|
replace_all with `<>' : "<><>r<>c<>d<><>r<>x"
|
|
change_first to `<&>' : "<a>bbracadabrax"
|
|
change_all to `<&>' : "<a><bb>r<a>c<a>d<a><b>r<a>x"
|
|
left_match : {"a", 0, 1}
|
|
first_match : {"a", 0, 1}
|
|
|
|
> "foo"
|
|
all matches : []
|
|
|
|
|
|
* Matching against "a+|b"
|
|
|
|
> "abbraacadabra"
|
|
all matches : [{"a", 0, 1}, {"b", 1, 1}, {"b", 2, 1}, {"aa", 4, 2}, {"a", 7, 1}, {"a", 9, 1}, {"b", 10, 1}, {"a", 12, 1}]
|
|
replace_first with `<>' : "<>bbraacadabra"
|
|
replace_all with `<>' : "<><><>r<>c<>d<><>r<>"
|
|
change_first to `<&>' : "<a>bbraacadabra"
|
|
change_all to `<&>' : "<a><b><b>r<aa>c<a>d<a><b>r<a>"
|
|
left_match : {"a", 0, 1}
|
|
right_match : {"a", 12, 1}
|
|
first_match : {"a", 0, 1}
|
|
|
|
> "xabbraacadabra"
|
|
all matches : [{"a", 1, 1}, {"b", 2, 1}, {"b", 3, 1}, {"aa", 5, 2}, {"a", 8, 1}, {"a", 10, 1}, {"b", 11, 1}, {"a", 13, 1}]
|
|
replace_first with `<>' : "x<>bbraacadabra"
|
|
replace_all with `<>' : "x<><><>r<>c<>d<><>r<>"
|
|
change_first to `<&>' : "x<a>bbraacadabra"
|
|
change_all to `<&>' : "x<a><b><b>r<aa>c<a>d<a><b>r<a>"
|
|
right_match : {"a", 13, 1}
|
|
first_match : {"a", 1, 1}
|
|
|
|
> "abbraacadabrax"
|
|
all matches : [{"a", 0, 1}, {"b", 1, 1}, {"b", 2, 1}, {"aa", 4, 2}, {"a", 7, 1}, {"a", 9, 1}, {"b", 10, 1}, {"a", 12, 1}]
|
|
replace_first with `<>' : "<>bbraacadabrax"
|
|
replace_all with `<>' : "<><><>r<>c<>d<><>r<>x"
|
|
change_first to `<&>' : "<a>bbraacadabrax"
|
|
change_all to `<&>' : "<a><b><b>r<aa>c<a>d<a><b>r<a>x"
|
|
left_match : {"a", 0, 1}
|
|
first_match : {"a", 0, 1}
|
|
|
|
> "foo"
|
|
all matches : []
|