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Eelco Dolstra 976df480c9 Add a primop for regular expression pattern matching 
The function ‘builtins.match’ takes a POSIX extended regular
expression and an arbitrary string. It returns ‘null’ if the string
does not match the regular expression. Otherwise, it returns a list
containing substring matches corresponding to parenthesis groups in
the regex. The regex must match the entire string (i.e. there is an
implied "^<pat>$" around the regex).  For example:

  match "foo" "foobar" => null
  match "foo" "foo" => []
  match "f(o+)(.*)" "foooobar" => ["oooo" "bar"]
  match "(.*/)?([^/]*)" "/dir/file.nix" => ["/dir/" "file.nix"]
  match "(.*/)?([^/]*)" "file.nix" => [null "file.nix"]

The following example finds all regular files with extension .nix or
.patch underneath the current directory:

  let

    findFiles = pat: dir: concatLists (mapAttrsToList (name: type:
      if type == "directory" then
        findFiles pat (dir + "/" + name)
      else if type == "regular" && match pat name != null then
        [(dir + "/" + name)]
      else []) (readDir dir));

  in findFiles ".*\\.(nix|patch)" (toString ./.)
2014-11-25 11:47:06 +01:00
..
dir1 * Add a Nix expression search path feature. Paths between angle 2011-08-06 16:05:24 +00:00
dir2 * Add a Nix expression search path feature. Paths between angle 2011-08-06 16:05:24 +00:00
dir3 * Add a Nix expression search path feature. Paths between angle 2011-08-06 16:05:24 +00:00
dir4 * Add a Nix expression search path feature. Paths between angle 2011-08-06 16:05:24 +00:00
readDir Add test for readDir primop 2014-10-03 22:32:11 +02:00
eval-fail-abort.nix
eval-fail-antiquoted-path.nix Add a regression test for correct path antiquotation behavior 2013-10-16 23:29:11 +02:00
eval-fail-assert.nix
eval-fail-bad-antiquote-1.nix Add a test for type correctness of antiquotes 2013-10-17 00:51:07 +02:00
eval-fail-bad-antiquote-2.nix Add a test for type correctness of antiquotes 2013-10-17 00:51:07 +02:00
eval-fail-bad-antiquote-3.nix Add a test for type correctness of antiquotes 2013-10-17 00:51:07 +02:00
eval-fail-blackhole.nix
eval-fail-deepseq.nix Add ‘deepSeq’ primop 2014-09-22 16:05:00 +02:00
eval-fail-missing-arg.nix
eval-fail-remove.nix
eval-fail-scope-5.nix
eval-fail-seq.nix Add ‘seq’ primop 2014-09-22 16:05:00 +02:00
eval-fail-substring.nix
eval-fail-to-path.nix
eval-fail-undeclared-arg.nix
eval-okay-arithmetic.exp Let the ordering operators also work on strings 2013-08-02 18:53:02 +02:00
eval-okay-arithmetic.nix Test some more primops 2014-02-26 19:08:44 +01:00
eval-okay-attrnames.exp
eval-okay-attrnames.nix Add primop ‘attrValues’ 2014-10-04 16:41:24 +02:00
eval-okay-attrs.exp
eval-okay-attrs.nix
eval-okay-attrs2.exp
eval-okay-attrs2.nix
eval-okay-attrs3.exp
eval-okay-attrs3.nix
eval-okay-attrs4.exp
eval-okay-attrs4.nix
eval-okay-attrs5.exp
eval-okay-attrs5.nix Allow dashes in identifiers 2012-09-27 15:49:20 -04:00
eval-okay-autoargs.exp
eval-okay-autoargs.flags
eval-okay-autoargs.nix Fix typos, especially those that end up in the Nix manual 2013-08-26 11:15:22 +02:00
eval-okay-builtins.exp
eval-okay-builtins.nix
eval-okay-callable-attrs.exp Add functors (callable attribute sets). 2014-11-15 16:12:05 -05:00
eval-okay-callable-attrs.nix Add functors (callable attribute sets). 2014-11-15 16:12:05 -05:00
eval-okay-catattrs.exp Add primop ‘catAttrs’ 2014-10-04 18:15:03 +02:00
eval-okay-catattrs.nix Add primop ‘catAttrs’ 2014-10-04 18:15:03 +02:00
eval-okay-closure.exp.xml
eval-okay-closure.nix
eval-okay-concat.exp
eval-okay-concat.nix
eval-okay-context.exp
eval-okay-context.nix == operator: Ignore string context 2014-06-10 14:02:56 +02:00
eval-okay-curpos.exp Add a symbol __curPos that expands to the current source location 2013-11-18 20:16:02 +01:00
eval-okay-curpos.nix Add a symbol __curPos that expands to the current source location 2013-11-18 20:16:02 +01:00
eval-okay-deepseq.exp Add ‘deepSeq’ primop 2014-09-22 16:05:00 +02:00
eval-okay-deepseq.nix Add ‘deepSeq’ primop 2014-09-22 16:05:00 +02:00
eval-okay-delayed-with-inherit.exp Simplify inherited attribute handling 2013-08-26 11:31:56 +02:00
eval-okay-delayed-with-inherit.nix Simplify inherited attribute handling 2013-08-26 11:31:56 +02:00
eval-okay-delayed-with.exp Test the delayed with a bit more 2013-07-31 13:12:35 +02:00
eval-okay-delayed-with.nix Test the delayed with a bit more 2013-07-31 13:12:35 +02:00
eval-okay-dynamic-attrs-2.exp Fold dynamic binds handling into addAttr 2013-12-31 17:57:10 -05:00
eval-okay-dynamic-attrs-2.nix Fold dynamic binds handling into addAttr 2013-12-31 17:57:10 -05:00
eval-okay-dynamic-attrs-bare.exp Allow "bare" dynamic attrs 2014-01-14 14:00:15 +01:00
eval-okay-dynamic-attrs-bare.nix Allow "bare" dynamic attrs 2014-01-14 14:00:15 +01:00
eval-okay-dynamic-attrs.exp Dynamic attrs 2013-12-31 20:59:49 +00:00
eval-okay-dynamic-attrs.nix Dynamic attrs 2013-12-31 20:59:49 +00:00
eval-okay-elem.exp Test some more primops 2014-02-26 19:08:44 +01:00
eval-okay-elem.nix Test some more primops 2014-02-26 19:08:44 +01:00
eval-okay-empty-args.exp
eval-okay-empty-args.nix
eval-okay-eq-derivations.exp * Add a test case for comparing derivations. 2012-01-19 22:10:24 +00:00
eval-okay-eq-derivations.nix * Add a test case for comparing derivations. 2012-01-19 22:10:24 +00:00
eval-okay-eq.exp.disabled
eval-okay-eq.nix
eval-okay-filter.exp Test some more primops 2014-02-26 19:08:44 +01:00
eval-okay-filter.nix Test some more primops 2014-02-26 19:08:44 +01:00
eval-okay-flatten.exp
eval-okay-flatten.nix
eval-okay-fromjson.exp Add builtin function ‘fromJSON’ 2014-07-04 13:34:15 +02:00
eval-okay-fromjson.nix Add builtin function ‘fromJSON’ 2014-07-04 13:34:15 +02:00
eval-okay-functionargs.exp.xml
eval-okay-functionargs.nix
eval-okay-getattrpos.exp Add a primop unsafeGetAttrPos to return the position of an attribute 2013-11-18 22:22:35 +01:00
eval-okay-getattrpos.nix Add a primop unsafeGetAttrPos to return the position of an attribute 2013-11-18 22:22:35 +01:00
eval-okay-getenv.exp
eval-okay-getenv.nix
eval-okay-hash.exp Rename "hash" to "hashString" and handle SHA-1 2013-02-08 19:36:23 +01:00
eval-okay-hash.nix Rename "hash" to "hashString" and handle SHA-1 2013-02-08 19:36:23 +01:00
eval-okay-if.exp
eval-okay-if.nix
eval-okay-import.exp Add primop ‘scopedImport’ 2014-05-26 14:26:29 +02:00
eval-okay-import.nix Add primop ‘scopedImport’ 2014-05-26 14:26:29 +02:00
eval-okay-ind-string.exp
eval-okay-ind-string.nix
eval-okay-let.exp
eval-okay-let.nix
eval-okay-list.exp
eval-okay-list.nix
eval-okay-listtoattrs.exp
eval-okay-listtoattrs.nix
eval-okay-logic.exp
eval-okay-logic.nix
eval-okay-map.exp
eval-okay-map.nix
eval-okay-new-let.exp
eval-okay-new-let.nix
eval-okay-null-dynamic-attrs.exp If a dynamic attribute name evaluates to null, remove it from the set 2014-03-10 10:14:50 +01:00
eval-okay-null-dynamic-attrs.nix If a dynamic attribute name evaluates to null, remove it from the set 2014-03-10 10:14:50 +01:00
eval-okay-overrides.exp
eval-okay-overrides.nix
eval-okay-pathexists.exp
eval-okay-pathexists.nix
eval-okay-patterns.exp
eval-okay-patterns.nix
eval-okay-readDir.exp Add test for readDir primop 2014-10-03 22:32:11 +02:00
eval-okay-readDir.nix Add test for readDir primop 2014-10-03 22:32:11 +02:00
eval-okay-readfile.exp
eval-okay-readfile.nix
eval-okay-redefine-builtin.exp Add the ExprBuiltin Expr type to the AST 2013-12-31 17:45:47 +00:00
eval-okay-redefine-builtin.nix Add the ExprBuiltin Expr type to the AST 2013-12-31 17:45:47 +00:00
eval-okay-regex-match.exp Add a primop for regular expression pattern matching 2014-11-25 11:47:06 +01:00
eval-okay-regex-match.nix Add a primop for regular expression pattern matching 2014-11-25 11:47:06 +01:00
eval-okay-remove.exp
eval-okay-remove.nix
eval-okay-scope-1.exp
eval-okay-scope-1.nix
eval-okay-scope-2.exp
eval-okay-scope-2.nix
eval-okay-scope-3.exp
eval-okay-scope-3.nix
eval-okay-scope-4.exp
eval-okay-scope-4.nix
eval-okay-scope-6.exp
eval-okay-scope-6.nix
eval-okay-scope-7.exp
eval-okay-scope-7.nix
eval-okay-search-path.exp Fix test 2014-05-29 19:04:27 +02:00
eval-okay-search-path.flags * Allow redirections in search path entries. E.g. if you have a 2011-08-06 17:48:57 +00:00
eval-okay-search-path.nix Rename nixPath to __nixPath 2014-07-30 11:28:39 +02:00
eval-okay-seq.exp Add ‘seq’ primop 2014-09-22 16:05:00 +02:00
eval-okay-seq.nix Add ‘seq’ primop 2014-09-22 16:05:00 +02:00
eval-okay-string.exp
eval-okay-string.nix
eval-okay-strings-as-attrs-names.exp
eval-okay-strings-as-attrs-names.nix
eval-okay-substring.exp
eval-okay-substring.nix
eval-okay-tail-call-1.exp-disabled Disable the tail call test 2014-01-06 11:32:22 +01:00
eval-okay-tail-call-1.nix Add a test to check that tail calls run in bounded stack space 2013-11-12 12:34:22 +01:00
eval-okay-tojson.exp Add a toJSON primop 2013-11-19 00:04:11 +01:00
eval-okay-tojson.nix Add a toJSON primop 2013-11-19 00:04:11 +01:00
eval-okay-toxml.exp
eval-okay-toxml.nix
eval-okay-toxml2.exp
eval-okay-toxml2.nix
eval-okay-tryeval.exp
eval-okay-tryeval.nix
eval-okay-types.exp Test some more primops 2014-02-26 19:08:44 +01:00
eval-okay-types.nix Test some more primops 2014-02-26 19:08:44 +01:00
eval-okay-versions.exp
eval-okay-versions.nix
eval-okay-with.exp
eval-okay-with.nix
eval-okay-xml.exp.xml
eval-okay-xml.nix
imported.nix Add primop ‘scopedImport’ 2014-05-26 14:26:29 +02:00
imported2.nix Add primop ‘scopedImport’ 2014-05-26 14:26:29 +02:00
lib.nix Test some more primops 2014-02-26 19:08:44 +01:00
parse-fail-dup-attrs-1.nix
parse-fail-dup-attrs-2.nix
parse-fail-dup-attrs-3.nix
parse-fail-dup-attrs-4.nix
parse-fail-dup-attrs-6.nix
parse-fail-dup-attrs-7.nix
parse-fail-dup-formals.nix
parse-fail-patterns-1.nix
parse-fail-regression-20060610.nix
parse-fail-undef-var-2.nix
parse-fail-undef-var.nix
parse-okay-1.nix
parse-okay-crlf.nix
parse-okay-dup-attrs-5.nix
parse-okay-regression-20041027.nix
parse-okay-subversion.nix
parse-okay-url.nix