v2.9.0 (2016-07-01)

Documentation

• Completions:
  • fixes some errors in the completion docs (9b359bf0)
  • adds documentation for completion scripts (c6c519e4)

Features

• Completions:
  • one can now generate a bash completions script at compile time! (e75b6c7b, closes #376)
  • completions now include aliases to subcommands, including all subcommand options (0ab9f840, closes #556)
  • completions now continue completing even after first completion (18fc2e5b)
  • allows matching on possible values in options (89cc2026, closes #557)

Bug Fixes

• AllowLeadingHyphen: fixes an issue where isn't ignored like it should be with this setting (96c24c9a, closes #558)

v2.8.0 (2016-06-30)

Features

• Arg: adds new setting Arg::require_delimiter which requires val delimiter to parse multiple values (920b5595)

Bug Fixes

• Declare term::Winsize as repr(C) (5d663d90)

Documentation

• Arg: adds docs for (49af4e38)

v2.7.1 (2016-06-29)

Bug Fixes

• Options:
  • options with multiple values and using delimiters no longer parse additional values after a trailing space (cdc500bd)
  • using options with multiple values and with an = no longer parse args after the trailing space as values (290f61d0)

v2.7.0 (2016-06-28)

Documentation

• fix typos (43b3d40b)
• ArgGroup: vastly improves ArgGroup docs by adding better examples (9e5f4f5d, closes #534)

Features

• ArgGroup: one can now specify groups which require AT LEAST one of the args (33689acc, closes #533)

Bug Fixes

• App: using App::print_help now prints the same as would have been printed by --help or the like (e84cc018, closes #536)
• Help:
  • prevents invoking help help and displaying incorrect help message (e3d2893f, closes #538)
  • subcommand help messages requested via help now correctly match --help (08ad1cff, closes #539)

Improvements

• ArgGroup: Add multiple ArgGroups per Arg (902e182f, closes #426)
• Usage Strings: [FLAGS] and [ARGS] are no longer blindly added to usage strings (9b2e45b1, closes #537)
• arg_enum!: allows using meta items like repr(C) with arg_enum!s (edf9b233, closes #543)

v2.6.0 (2016-06-14)

Improvements

• removes extra newline from help output (86e61d19)
• allows printing version to any io::Write object (921f5f79)
• removes extra newline when printing version (7e2e2cbb)
• Aliases: improves readability of asliases in help messages (ca511de7, closes #526, #529)
• Usage Strings: improves the default usage string when only a single positional arg is present (ec86f2da, closes #518)

Features

• Help: allows wrapping at specified term width (Even on Windows!) (1761dc0d, closes #451)
• Settings:
  • adds new setting to stop delimiting values with -- or TrailingVarArg (fc3e0f5a, closes #511)
  • one can now set an AppSetting which is propogated down through child subcommands (e2341835, closes #519)
• Subcommands: adds support for visible aliases (7b10e7f8, closes #522)

Bug Fixes

• fixes bug where args are printed out of order with templates (05abb534)
• fixes bug where one can't override version or help flags (90d7d6a2, closes #514)
• fixes issue where before_help wasn't printed (b3faff60)
• Help: App::before_help and App::after_help now correctly wrap (1f4da767, closes #516)
• Settings: fixes bug where new color settings couldn't be converted from strs (706a7c11)
• Subcommands: subcommands with aliases now display help of the aliased subcommand (5354d14b, closes #521)
• Windows: fixes a failing windows build (01e7dfd6)
• YAML: adds missing YAML methods for App and Arg (e468faf3, closes #528)

v2.5.2 (2016-05-31)

Improvements

• removes extra newline from help output (86e61d19)
• allows printing version to any io::Write object (921f5f79)
• removes extra newline when printing version (7e2e2cbb)

Bug Fixes

• fixes bug where args are printed out of order with templates (3935431d)
• fixes bug where one can't override version or help flags (90d7d6a2, closes #514)
• fixes issue where before_help wasn't printed (b3faff60)

Documentation

• inter-links all types and pages (3312893d, closes #505)
• makes all publicly available types viewable in docs (52ca6505)

v2.5.1 (2016-05-11)

Bug Fixes

• Subcommand Aliases: fixes lifetime issue when setting multiple aliases at once (ac42f6cf0)

v2.5.0 (2016-05-10)

Improvements

• SubCommand Aliases: adds feature to yaml configs too (69592195)

Features

• SubCommands: adds support for subcommand aliases (66b4dea6, closes #469)

v2.4.3 (2016-05-10)

Bug Fixes

• Usage Strings:
  • now properly dedups args that are also in groups (3ca0947c, closes #498)
  • removes duplicate groups from usage strings (f574fb8a)

Improvements

• Groups: formats positional args in groups in a better way (fef11154)
• Help:
  • moves positionals to standard <> formatting (03dfe5ce)
  • default help subcommand string has been shortened (5b7fe8e4, closes #494)

v2.4.3 (2016-05-10)

• Ghost Release

v2.4.3 (2016-05-10)

• Ghost Release

v2.4.0 (2016-05-02)

Features

• Help: adds support for displaying info before help message (29fbfa3b)
• Required: adds allowing args that are required unless certain args are present (af1f7916)

Documentation

• hides formatting from docs (cb708093)
• required_unless: adds docs and examples for required_unless (ca727b52)

Bug Fixes

• Required Args: fixes issue where missing required args are sometimes duplicatd in error messages (3beebd81, closes #492)

v2.3.0 (2016-04-18)

Improvements

• macros.rs: Added write_nspaces macro (a new version of write_spaces) (9d757e86)
• parser.rs:
  • Provide a way to create a usage string without the USAGE: title (a91d378b)
  • Make Parser's create_usage public allowing to have function outside the parser to generate the help (d51945f8)
  • Expose Parser's flags, opts and positionals argument as iterators (9b23e7ee)
• src/args: Exposes argument display order by introducing a new Trait (1321630e)
• srs/args: Added longest_filter to AnyArg trait (65b3f667)

Features

• Authors Macro: adds a crate_authors macro (38fb59ab, closes #447)
• HELP:
  • implements optional colored help messages (abc8f669, closes #483)
  • Add a Templated Help system. (81e121ed)

Bug Fixes

• HELP: Adjust Help to semantic changes introduced in 6933b84 (8d23806b)

v2.2.6 (2016-04-11)

Bug Fixes

• Arg Groups: fixes bug where arg name isn't printed properly (3019a685, closes #476)

v2.2.5 (2016-04-03)

Bug Fixes

• Empty Values: fixes bug where empty values weren't stored (885d166f, closes #470)
• Help Message: fixes bug where arg name is printed twice (71acf1d5, closes #472)

v2.2.4 (2016-03-30)

Bug Fixes

• fixes compiling with debug cargo feature (d4b55450)
• Empty Values: fixes bug where empty values weren't stored (885d166f, closes #470)

v2.2.3 (2016-03-28)

Bug Fixes

• Help Subcommand: fixes issue where help and version flags weren't properly displayed (205b07bf, closes #466)

v2.2.2 (2016-03-27)

Bug Fixes

• Help Message: fixes bug with wrapping in the middle of a unicode sequence (05365ddc, closes #456)
• Usage Strings: fixes small bug where -- would appear needlessly in usage strings (6933b849, closes #461)

2.2.1 (2016-03-16)

Features

• Help Message: wraps and aligns the help message of subcommands (813d75d0, closes #452)

Bug Fixes

• Help Message: fixes a bug where small terminal sizes causing a loop (1d73b035, closes #453)

v2.2.0 (2016-03-15)

Features

• Help Message: can auto wrap and aligning help text to term width (e36af026, closes #428)
• Help Subcommand: adds support passing additional subcommands to help subcommand (2c12757b, closes #416)
• Opts and Flags: adds support for custom ordering in help messages (9803b51e)
• Settings: adds support for automatically deriving custom display order of args (ad86e433, closes #444)
• Subcommands: adds support for custom ordering in help messages (7d2a2ed4, closes #442)

Bug Fixes

• From Usage: fixes a bug where adding empty lines werent ignored (c5c58c86)

Documentation

• Groups: explains required ArgGroups better (4ff0205b, closes #439)

v2.1.2 (2016-02-24)

Bug Fixes

• Nightly: fixes failing nightly build (d752c170, closes #434)

v2.1.1 (2016-02-19)

Documentation

• AppSettings: clarifies that AppSettings do not propagate (3c8db0e9, closes #429)
• Arg Examples: adds better examples (1e79cccc)

Improvements

• Help: adds setting for next line help by arg (066df748, closes #427)

v2.1.0 (2016-02-10)

Features

• Defult Values: adds support for default values in args (73211952, closes #418)

Documentation

• Default Values: adds better examples and notes for default values (9facd74f)

v2.0.6 (2016-02-09)

Improvements

• Positional Arguments: now displays value name if appropriate (f0a99916, closes #420)

v2.0.5 (2016-02-05)

Bug Fixes

• Multiple Values: fixes bug where number_of_values wasnt respected (72c387da)

v2.0.4 (2016-02-04)

Bug Fixes

• adds support for building ArgGroups from standalone YAML (fcbc7e12)
• Stop lonely hyphens from causing panic (85b11468, closes #410)
• AppSettings: fixes bug where subcmds didn't receive parent ver (a62e4527)

v2.0.3 (2016-02-02)

Improvements

• values: adds support for up to u64::max values per arg (c7abf7d7)
• occurrences: Allow for more than 256 occurrences of an argument. (3731ddb3)

Features

• AppSettings: adds HidePossibleValuesInHelp to skip writing those values (cdee7a0e)

Bug Fixes

• value_t_or_exit: fixes typo which causes value_t_or_exit to return a Result (ee96baff)

v2.0.2 (2016-01-31)

Improvements

• arg_enum: enum declared with arg_enum returns [&'static str; #] instead of Vec (9c4b8a1a)

Bug Fixes

• clap_app! should be gated by unstable, not nightly feature (0c8b84af)
• SubCommands: fixed where subcmds weren't recognized after mult args (c19c17a8, closes #405)
• Usage Parser: fixes a bug where literal single quotes weren't allowed in help strings (0bcc7120, closes #406)

v2.0.1 (2016-01-30)

Bug Fixes

• fixes cargo features to NOT require nightly with unstable features (dcbcc60c, closes #402)

v2.0.0 (2016-01-28)

Improvements

• From Usage: vastly improves the usage parser (fa3a2f86, closes #350)

Features

• adds support for external subcommands (177fe5cc, closes #372)
• adds support values with a leading hyphen (e4d429b9, closes #385)
• adds support for turning off the value delimiter (508db850, closes #352)
• adds support changing the value delimiter (dafeae8a, closes #353)
• adds support for comma separated values (e69da6af, closes #348)
• adds support with options with optional values (4555736c, closes #367)
• UTF-8: adds support for invalid utf8 in values (c5c59dec, closes #269)
• v2: implementing the base of 2.x (a3536054)

Bug Fixes

• fixes nightly build with new lints (17599195)
• fixes Windows build for 2x release (674c9b48, closes #392)
• fixes yaml build for 2x base (adceae64)

Documentation

• updates examples for 2x release (1303b360, closes #394)
• updates examples for 2x release (0a011f31, closes #394)
• updates documentation for v2 release (8d51724e)
• updating docs for 2x release (576d0e0e)
• README.md:
  • updates readme for v2 release (acaba01a, closes #393)
  • fix typo and make documentation conspicuous (07b9f614)

BREAKING CHANGES

• Fewer liftimes! Yay!
• App<'a, 'b, 'c, 'd, 'e, 'f> => App<'a, 'b>
• Arg<'a, 'b, 'c, 'd, 'e, 'f> => Arg<'a, 'b>
• ArgMatches<'a, 'b> => ArgMatches<'a>
• Simply Renamed
• App::arg_group => App::group
• App::arg_groups => App::groups
• ArgGroup::add => ArgGroup::arg
• ArgGroup::add_all => ArgGroup::args
• ClapError => Error
• struct field ClapError::error_type => Error::kind
• ClapResult => Result
• ClapErrorType => ErrorKind
• Removed Deprecated Functions and Methods
• App::subcommands_negate_reqs
• App::subcommand_required
• App::arg_required_else_help
• App::global_version(bool)
• App::versionless_subcommands
• App::unified_help_messages
• App::wait_on_error
• App::subcommand_required_else_help
• SubCommand::new
• App::error_on_no_subcommand
• Arg::new
• Arg::mutually_excludes
• Arg::mutually_excludes_all
• Arg::mutually_overrides_with
• simple_enum!
• Renamed Error Variants
• InvalidUnicode => InvalidUtf8
• InvalidArgument => UnknownArgument
• Usage Parser
• Value names can now be specified inline, i.e. -o, --option <FILE> <FILE2> 'some option which takes two files'
• There is now a priority of order to determine the name - This is perhaps the biggest breaking change. See the documentation for full details. Prior to this change, the value name took precedence. Ensure your args are using the proper names (i.e. typically the long or short and NOT the value name) throughout the code
• ArgMatches::values_of returns an Values now which implements Iterator (should not break any code)
• crate_version! returns &'static str instead of String
• Using the clap_app! macro requires compiling with the unstable feature because the syntax could change slightly in the future

v1.5.5 (2016-01-04)

Bug Fixes

• fixes an issue where invalid short args didn't cause an error (c9bf7e44)
• prints the name in version and help instead of binary name (8f3817f6, closes #368)
• fixes an intentional panic issue discovered via clippy (ea83a3d4)

v1.5.4 (2015-12-18)

Examples

• 17_yaml: conditinonally compile 17_yaml example (575de089)

Improvements

• clippy improvements (99cdebc2)

Bug Fixes

• errors: return correct error type in WrongNumValues error builder (5ba8ba9d)
• ArgRequiredElseHelp setting now takes precedence over missing required args (faad83fb, closes #362)

v1.5.3 (2015-11-20)

Bug Fixes

• Errors: fixes some instances when errors are missing a final newline (c4d2b171)

v1.5.2 (2015-11-14)

Bug Fixes

• Errors: fixes a compiling bug when built on Windows or without the color feature (a35f7634)

v1.5.1 (2015-11-13)

Bug Fixes

• Required Args: fixes a bug where required args are not correctly accounted for (f03b88a9, closes #343)

v1.5.0 (2015-11-13)

Bug Fixes

• fixes a bug with required positional args in usage strings (c6858f78)

Documentation

• FAQ: updates readme with slight changes to FAQ (a4ef0fab)

Improvements

• massive errors overhaul (cdc29175)
• ArgMatcher: huge refactor and deduplication of code (8988853f)
• Errors: errors have been vastly improved (e59bc0c1)
• Traits: refactoring some configuration into traits (5800cdec)

Performance

• App:
  • more BTreeMap->Vec, Opts and SubCmds (bc4495b3)
  • changes flags BTreeMap->Vec (d357640f)
  • removed unneeded BTreeMap (78971fd6)
  • changes BTreeMap to VecMap in some instances (64b921d0)
  • removed excess clones (ec0089d4)

v1.4.7 (2015-11-03)

Documentation

• Clarify behavior of Arg::multiple with options. (434f497a)
• Fix typos and improve grammar. (c1f66b5d)

Bug Fixes

• Error Status: fixes bug where --help and --version return non-zero exit code (89b51fdf)

v1.4.6 (2015-10-29)

Features

• allows parsing without a binary name for daemons and interactive CLIs (aff89d57, closes #318)

Bug Fixes

• Errors: tones down quoting in some error messages (34ce59ed, closes #309)
• Help and Version: only builds help and version once (e3be87cf)
• Option Args: fixes bug with args and multiple values (c9a9548a, closes #323)
• POSIX Overrides: fixes bug where required args are overridden (40ed2b50)
• Safe Matches: using ‘safe’ forms of the get_matches family no longer exit the process (c47025dc, closes #256)
• Versionless SubCommands: fixes a bug where the -V flag was needlessly built (27df8b9d, closes #329)

Documentation

• adds comparison in readme (1a8bf31e, closes #325)

v1.4.5 (2015-10-06)

Bug Fixes

• fixes crash on invalid arg error (c78ce128)

v1.4.4 (2015-10-06)

Documentation

• clean up some formatting (b7df92d7)
• move the crate-level docs to top of the lib.rs file (d7233bf1)
• changes doc comments to rustdoc comments (34b601be)
• fixes panic in 14_groups example (945b00a0, closes #295)
• avoid suggesting star dependencies. (d33228f4)
• Rustdoc: adds portions of the readme to main rustdoc page (6f9ee181, closes #293)

Bug Fixes

• grammar error in some conflicting option errors (e73b07e1)
• Unified Help: sorts both flags and options as a unified category (2a223dad)
• Usage: fixes a bug where required args aren't filtered properly (72b453dc, closes #277)
• Usage Strings: fixes a bug ordering of elements in usage strings (aaf0d6fe, closes #298)

Features

• supports -aValue style options (0e3733e4)
• Trailing VarArg: adds opt-in setting for final arg being vararg (27018b18, closes #278)

v1.4.3 (2015-09-30)

Features

• allows accessing arg values by group name (c92a4b9e)

Documentation

• use links to examples instead of plain text (bb4fe237)

Bug Fixes

• Help Message: required args no longer double list in usage (1412e639, closes #277)
• Possible Values: possible value validation is restored (f121ae74, closes #287)

v1.4.2 (2015-09-23)

Bug Fixes

• Conflicts: fixes bug with conflicts not removing required args (e17fcec5, closes #271)

v1.4.1 (2015-09-22)

Examples

• add clap_app quick example (4ba6249c)

Features

• Unicode: allows non-panicing on invalid unicode characters (c5bf7ddc)

Documentation

• properly names Examples section for rustdoc (87ba5445)
• fixes various typos and spelling (f85640f9)
• Arg: unhides fields of the Arg struct (931aea88)

Bug Fixes

• flush the buffer in App::print_version() (cbc42a37)
• Macro benchmarks (13712da1)

v1.4.0 (2015-09-09)

Features

• allows printing help message by library consumers (56b95f32)
• allows defining hidden args and subcmds (2cab4d03, closes #231)
• Builder macro to assist with App/Arg/Group/SubCommand building (443841b0)
• Errors: allows consumers to write to stderr and exit on error (1e6403b6)

v1.3.2 (2015-09-08)

Documentation

• fixed ErrorKind docs (dd057843)
• ErrorKind: changed examples content (b9ca2616)

Bug Fixes

• fixes a bug where the help subcommand wasn't overridable (94003db4)

Features

• adds abiltiy not consume self when parsing matches and/or exit on help (94003db4)
• App: Added ability for users to handle errors themselves (934e6fbb)

v1.3.1 (2015-09-04)

Examples

• 17_yaml: fixed example (9b848622)

Performance

• changes ArgGroup HashSets to Vec (3cb4a48e)
• changes BTreeSet for Vec in some instances (baab2e3f)

v1.3.0 (2015-09-01)

Features

• YAML: allows building a CLI from YAML files (86cf4c45)
• ArgGroups: adds support for building ArgGroups from yaml (ecf88665)
• Subcommands: adds support for subcommands from yaml (e415cf78)

Documentation

• YAML: adds examples for using YAML to build a CLI (ab41d7f3)
• Args from YAML: fixes doc examples (19b348a1)
• Examples: adds better usage examples instead of having unused variables (8cbacd88)

Examples

• Add AppSettings example (12705079)

Bug Fixes

• Unified Help Messages: fixes a crash from this setting and no opts (169ffec1, closes #210)

v1.2.5 (2015-08-27)

Examples

• add custom validator example (b9997d1f)
• fix indentation (d4f1b740)

Features

• Args: allows opts and args to define a name for help and usage msgs (ad962ec4)

v1.2.4 (2015-08-26)

Bug Fixes

• Possible Values: fixes a bug where suggestions arent made when using --long=value format (3d5e9a6c, closes #192)

v1.2.3 (2015-08-24)

Bug Fixes

• App, Args: fixed subcommand reqs negation (b41afa8c, closes #188)

v1.2.2 (2015-08-23)

Bug Fixes

• fixed confusing error message, also added test for it (fc7a31a7)
• App: fixed requirmets overriding (9c135eb7)

v1.2.1 (2015-08-20)

Documentation

• README.md: updates for new features (16cf9245)

Features

• implements posix compatible conflicts for long args (8c2d48ac)
• added overrides to support conflicts in POSIX compatible manner (0b916a00)
• Args: allows defining POSIX compatible argument conflicts (d715646e)

Bug Fixes

• fixed links in cargo and license buttons (6d9837ad)

Performance

• Args and Apps: changes HashSet->Vec in some instances for increased performance (d0c3b379)

v1.2.0 (2015-08-15)

Bug Fixes

• fixed misspell and enum name (7df170d7)
• fixed use for clap crate (dc3ada73)

Documentation

• updates docs for new features (03496547)
• fixed docs for previous changes (ade36778)

Improvements

• AppSettings: adds ability to add multiple settings at once (4a00e251)

Features

• Replace application level settings with enum variants (618dc4e2)
• Args: allows for custom argument value validations to be defined (84ae2ddb, closes #170)

v1.1.6 (2015-08-01)

Bug Fixes

• fixes two bugs in App when printing newlines in help and subcommands required error (d63c0136)

v1.1.5 (2015-07-29)

Performance

• removes some unneeded allocations (93e915df)

v1.1.4 (2015-07-20)

Improvements

• Usage Strings displays a [--] when it may be helpful (86c3be85)

Bug Fixes

• Macros fixes a typo in a macro generated error message (c9195c5f)
• Type Errors fixes formatting of error output when failed type parsing (fe5d95c6)

v1.1.3 (2015-07-18)

Documentation

• updates README.md to include lack of color support on Windows (52f81e17)

Bug Fixes

• fixes formatting bug which prevented compiling on windows (9cb5dceb, closes #163)

v1.1.2 (2015-07-17)

Bug Fixes

• fixes a bug when parsing multiple {n} newlines inside help strings (6d214b54)

v1.1.1 (2015-07-17)

Bug Fixes

• fixes a logic bug and allows setting Arg::number_of_values() < 2 (42b6d1fc, closes #161)

v1.1.0 (2015-07-16)

Features

• allows creating unified help messages, a la docopt or getopts (52bcd892, closes #158)
• allows stating all subcommands should not have --version flags (336c476f, closes #156)
• allows setting version number to auto-propagate through subcommands (bc66d3c6, closes #157)

Improvements

• Help Strings properly aligns and handles newlines in long help strings (f9800a29, closes #145)

Performance

• Help Messages big performance improvements when printing help messages (52bcd892)

Documentation

• updates readme with new features (8232f7bb)
• fix incorrect code example for App::subcommand_required (8889689d)

v1.0.3 (2015-07-11)

Improvements

• Errors writes errors to stderr (cc76ab8c, closes #154)

Documentation

• README.md updates example help message to new format (0aca29bd)

v1.0.2 (2015-07-09)

Improvements

• Usage re-orders optional arguments and required to natural standard (dc7e1fce, closes #147)

v1.0.1 (2015-07-08)

Bug Fixes

• allows empty values when using --long='' syntax (083f82d3, closes #151)

v1.0.0 (2015-07-08)

Documentation

• README.md adds new features to what's new list (938f7f01)
• README.md use with_name for subcommands (28b7e316)

Features

• args can now be parsed from arbitrary locations, not just std::env::args() (75312528)

v1.0.0-beta (2015-06-30)

Features

• allows waiting for user input on error (d0da3bdd, closes #140)
• Help allows one to fully override the auto-generated help message (26d5ae3e, closes #141)

Documentation

• adds “whats new” section to readme (ff149a29)

Improvements

• removes deprecated functions in prep for 1.0 (274484df)

v0.11.0 (2015-06-17) - BREAKING CHANGE

Documentation

• updates docs to new version flag defaults (ebf442eb)

Features

• Help and Version default short for version is now -V but can be overridden (only breaks manual documentation) (BREAKING CHANGE eb1d9320)

v0.10.5 (2015-06-06)

Bug Fixes

• Global Args global arguments propogate fully now (1f377960, closes #137)

v0.10.4 (2015-06-06)

Bug Fixes

• Global Args global arguments propogate fully now (8f2c0160, closes #137)

v0.10.3 (2015-05-31)

Bug Fixes

• Global Args fixes a bug where globals only transfer to one subcommand (a37842ee, closes #135)

v0.10.2 (2015-05-30)

Improvements

• Binary Names allows users to override the system determined bin name (2191fe94, closes #134)

Documentation

• adds contributing guidelines (6f76bd0a)

v0.10.1 (2015-05-26)

Features

• can now specify that an app or subcommand should display help on no args or subcommands (29ca7b2f, closes #133)

v0.10.0 (2015-05-23)

Features

• Global Args allows args that propagate down to child commands (2bcc6137, closes #131)

Improvements

• Colors implements more structured colored output (d6c3ed54, closes #129)

Deprecations

• SubCommand/App several methods and functions for stable release (28b73855)

Documentation

• updates for deprecations and new features (743eefe8)

v0.9.2 (2015-05-20)

Bug Fixes

• help allows parent requirements to be ignored with help and version (52218cc1, closes #124)

v0.9.1 (2015-05-18)

Bug Fixes

• help fixes a bug where requirements are included as program name in help and version (08ba3f25)

v0.9.0 (2015-05-17)

Improvements

• usage usage strings now include parent command requirements (dd8f21c7, closes #125)
• args allows consumer of clap to decide if empty values are allowed or not (ab4ec609, closes #122)

Features

• subcommands
  • allows optionally specifying that no subcommand is an error (7554f238, closes #126)
  • subcommands can optionally negate parent requirements (4a4229f5, closes #123)

v0.8.6 (2015-05-17)

Bug Fixes

• args - can now be parsed as a value for an argument (bc12e78e, closes #121)

v0.8.5 (2015-05-15)

Bug Fixes

• macros makes macro errors consistent with others (0c264a8c, closes #118)

Features

• macros
  • arg_enum! and simple_enum! provide a Vec<&str> of variant names (30fa87ba, closes #119)
  • arg_enum! and simple_enum! auto-implement Display (d1219f0d, closes #120)

v0.8.4 (2015-05-12)

Bug Fixes

• suggestions --help and --version now get suggestions (d2b3b1fa, closes #116)

v0.8.3 (2015-05-10)

Bug Fixes

• usage groups unfold their members in usage strings (55d15582, closes #114)

Performance

• usage removes unneeded allocations (fd53cd18)

v0.8.2 (2015-05-08)

Bug Fixes

• usage strings positional arguments are presented in index order (eb0e374e, closes #112)

v0.8.1 (2015-05-06)

Bug Fixes

• subcommands stops parsing multiple values when subcommands are found (fc79017e, closes #109)

Improvements

• color reduces color in error messages (aab44cca, closes #110)
• suggestions adds suggested arguments to usage strings (99447414)

v0.8.0 (2015-05-06)

Bug Fixes

• did-you-mean for review (0535cfb0)
• Positional positionals were ignored if they matched a subcmd, even after ‘--’ (90e7b081)
• help fixes bug where space between arg and help is too long (632fb115)

Features

• from_usage adds ability to add value names or num of vals in usage string (3d581976, closes #98)
• did-you-mean
  • gate it behind ‘suggestions’ (c0e38351)
  • for possible values (1cc2deb2)
  • for long flags (i.e. --long) (52a0b850)
  • for subcommands (06e869b5)
• Flags adds sugestions functionality (8745071c)
• errors colorizes output red on error (f8b26b13)

Improvements

• arg_enum allows ascii case insensitivity for enum variants (b249f965, closes #104)
• clap-test simplified make test invocation (d17dcb29)

Documentation

• README adds details about optional and new features (960389de)
• clap fix typos caught by codespell (8891d929)
• from_usage explains new usage strings with multiple values (05476fc6)

v0.7.6 (2015-05-05)

Improvements

• Options adds number of values to options in help/usage (c1c993c4)

Features

• from_usage adds ability to add value names or num of vals in usage string (ad55748c, closes #98)

Bug Fixes

• MultipleValues properly distinguishes between multiple values and multiple occurrences (dd2a7564, closes #99)
• help fixes tab alignment with multiple values (847001ff)

Documentation

• from_usage explains new usage strings with multiple values (5a3a42df)

v0.7.5 (2015-05-04)

Bug Fixes

• Options fixes bug where options with no value don't error out (a1fb94be)

v0.7.4 (2015-05-03)

Bug Fixes

• Options fixes a bug where option arguments in succession get their values skipped (f66334d0)

v0.7.3 (2015-05-03)

Bug Fixes

• RequiredValues fixes a bug where missing values are parsed as missing arguments (93c4a723)

Improvements

• ErrorMessages improves error messages and corrections (a29c3983)
• ArgGroups improves requirement and confliction support for groups (c236dc5f)

v0.7.2 (2015-05-03)

Bug Fixes

• RequiredArgs fixes bug where required-by-default arguments are not listed in usage (12aea961, closes #96)

v0.7.1 (2015-05-01)

Bug Fixes

• MultipleValues stops evaluating values if the max or exact number of values was reached (86d92c9f)

v0.7.0 (2015-04-30) - BREAKING CHANGE

Bug Fixes

• from_usage removes bug where usage strings have no help text (ad4e5451, closes #83)

Features

• MultipleValues
  • add support for minimum and maximum number of values (53f6b8c9)
  • adds support limited number and named values (ae09f05e)
  • implement shorthand for options with multiple values (6669f0a9)
• arg allow other types besides Vec for multiple value settings (BREAKING CHANGE 0cc2f698, closes #87)
• usage implement smart usage strings on errors (d77048ef, closes #88)

v0.6.9 (2015-04-29)

Bug Fixes

• from_usage removes bug where usage strings have no help text (ad4e5451, closes #83)

0.6.8 (2015-04-27)

Bug Fixes

• help change long help --long=long -> --long (1e25abfc)
• RequiredArgs required by default args should no longer be required when their exclusions are present (4bb4c3cc)

Features

• ArgGroups add ability to create arg groups (09eb4d98)

v0.6.7 (2015-04-22)

Bug Fixes

• from_usage fix bug causing args to not be required (b76129e9)

Features

• apps add ability to display additional help info after auto-gen'ed help msg (65cc259e)

v0.6.6 (2015-04-19)

Bug Fixes

• from_usage tabs and spaces should be treated equally (4fd44181)

Features

• macros.rs add macro to get version from Cargo.toml (c630969a)

v0.6.5 (2015-04-19)

Bug Fixes

• macros.rs fix use statements for trait impls (86e4075e)

v0.6.4 (2015-04-17)

Features

• macros add ability to create enums pub or priv with derives (2c499f80)

v0.6.3 (2015-04-16)

Features

• macros add macro to create custom enums to use as types (fb672aff)

v0.6.2 (2015-04-14)

Features

• macros
  • add ability to get mutliple typed values or exit (0b87251f)
  • add ability to get a typed multiple values (e243fe38)
  • add convenience macro to get a typed value or exit (4b7cd3ea)
  • add convenience macro to get a typed value (8752700f)

v0.6.1 (2015-04-13)

Bug Fixes

• from_usage trim all whitespace before parsing (91d29045)

v0.6.0 (2015-04-13)

Bug Fixes

• tests fix failing doc tests (3710cd69)

Features

• app add support for building args from usage strings (d5d48bcf)
• args add ability to create basic arguments from a usage string (ab409a8f)

v0.5.14 (2015-04-10)

Bug Fixes

• usage
  • remove unneeded space (51372789)
  • remove warning about unused variables (ba817b9d)

Features

• usage add ability to get usage string for subcommands too (3636afc4)

v0.5.13 (2015-04-09)

Features

• SubCommands add method to get name and subcommand matches together (64e53928)
• ArgMatches add method to get default usage string (02462150)

v0.5.12 (2015-04-08)

Features

• help sort arguments by name so as to not display a random order (f4b2bf57)

v0.5.11 (2015-04-08)

Bug Fixes

• flags fix bug not allowing users to specify -v or -h (90e72cff)

v0.5.10 (2015-04-08)

Bug Fixes

• help fix spacing when option argument has not long version (ca17fa49)

v0.5.9 (2015-04-08)

Bug Fixes

• positional args all previous positional args become required when a latter one is required (c14c3f31, closes #50)
• clap remove unstable features for Rust 1.0 (9abdb438)
• args improve error messages for arguments with mutual exclusions (18dbcf37, closes #51)

v0.5.8 (2015-04-08)

Bug Fixes

• option args fix bug in getting the wrong number of occurrences for options (82ad6ad7)
• help fix formatting for option arguments with no long (e8691004)
• flags add assertion to catch flags with specific value sets (a0a2a40f, closes #52)
• args improve error messages for arguments with mutual exclusions (bff945fc, closes #51)
• tests add missing .takes_value(true) to option2 (bdb0e88f)
• positional args all previous positional args become required when a latter one is required (343d47dc, closes #50)

v0.5.7 (2015-04-08)

Bug Fixes

• args fix bug in arguments who are required and mutually exclusive (6ceb88a5)

v0.5.6 (2015-04-08)

Bug Fixes

• help fix formatting of help and usage (28691b52)

v0.5.5 (2015-04-08)

Bug Fixes

• help fix formatting of help for flags and options (6ec10115)

v0.5.4 (2015-04-08)

Features

• help add ‘...’ to indicate multiple values supported (297ddba7)

v0.5.3 (2015-04-08)

Features

• positionals
  • add assertions for positional args with multiple vals (b7fa72d4)
  • add support for multiple values (80784009)

v0.5.2 (2015-04-08)

Bug Fixes

• apps allow use of hyphens in application and subcommand names (da549dcb)

v0.5.1 (2015-04-08)

Bug Fixes

• args determine if the only arguments allowed are also required (0a09eb36)

v0.5.0 (2015-04-08)

Features

• args add support for a specific set of allowed values on options or positional arguments (270eb889)

v0.4.18 (2015-04-08)

Bug Fixes

• usage display required args in usage, even if only required by others (1b7316d4)

Features

• subcommands properly list subcommands in help and usage (4ee02344)

v0.4.17 (2015-04-08)

Bug Fixes

• tests remove cargo test from claptests makefile (1cf73817)

v0.4.16 (2015-04-08)

Bug Fixes

• option fix bug with option occurrence values (9af52e93)
• tests fix testing script bug and formatting (d8f03a55)

Features

• arg allow lifetimes other than 'static in arguments (9e8c1fb9)