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89b9e22f9a
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101 Commits

Author SHA1 Message Date
Ethan Slattery
89b9e22f9a add pre and post text options 
add variables, assignment functions, and printing for text before and after the argument lists.
 2020-01-02 14:15:44 -08:00
Zhihao Yuan
7c57e1e852
Record used names with copies of string_view 2020-01-02 02:19:09 -06:00
Zhihao Yuan
03a0ce831d
Simplify Argument exposition-only constructors 
Although they are public, they are not meant for end-users
to use, so we can change its interface to use less sfinae.
 2020-01-02 02:19:08 -06:00
Zhihao Yuan
e6c6c9b31c
Get arguments in optional<T> with .present<T>() 
fixes: p-ranav/argparse#66
 2019-12-01 02:14:13 -06:00
Zhihao Yuan
e8a44d289d
Parse floating-point numbers in .scan 
fixes: p-ranav/argparse#63
 2019-11-26 00:11:21 -06:00
Zhihao Yuan
426a5dbb76
Parse integers in the .scan fluent interface 2019-11-25 23:45:55 -06:00
Zhihao Yuan
ea2f16d264
Upgrade and describe supported toolchains 2019-11-25 17:23:28 -06:00
Zhihao Yuan
964790cf3c
Determine negative numeric values with a grammar 
Two differences that diverge from the existing behavior:

  1. Leading zeros are not allowed for integers.  Negative
     octal numbers such as `-066` are not meant to be treated
     as positional arguments, but existing code recognize them
     as decimal numbers.  Note that negative floating-point
     numbers with leading zeros (`-003.`) are unambiguous and
     are recognized.
  2. Inf and NaN are not recognized.  This is because options
     like `-inf` is indistinguishable from a compound argument
     that meant to be a shorthand for `-i -n -f`.

fixes: p-ranav/argparse#55
 2019-11-24 00:31:05 -06:00
Zhihao Yuan
77f3bd9b8d
Default --help to print help and exit 
The change also fixes a rare bug introduced in 9007958:
when there are duplicated keys, insert_or_update overrides
previously inserted ones, emplace doesn't.

fixes: p-ranav/argparse#59
 2019-11-22 16:54:58 -06:00
Zhihao Yuan
36003197c7
Fix print_help for printing nothing 2019-11-22 15:33:15 -06:00
Pranav Srinivas Kumar
c707bcc1c4 Closes #56 2019-11-21 10:25:41 -06:00
Zhihao Yuan
991df83d97
Support capturing remaining() arguments 
This kind of argument works as if having the "remaining" nargs,
inspired by Python's `argparse.REMAINDER`.

This change also reduces the size of `Argument` by 8 bytes.

See also: https://docs.python.org/2/library/argparse.html#nargs

fixes: p-ranav/argparse#17
 2019-11-20 17:47:20 -06:00
Zhihao Yuan
f7dae0d93d
Refactor some uses of SFINAE into constexpr-if 2019-11-17 20:17:27 -06:00
Zhihao Yuan
93ddf85a7b
Factor out any_cast_container 2019-11-17 20:05:25 -06:00
Zhihao Yuan
3177f544f5
Default value is not a container of std::any 2019-11-17 19:11:09 -06:00
Zhihao Yuan
4c5ded8c84
Constrain Argument constructor better 
Without this change, std::allocator can construct Argument
 2019-11-17 18:55:52 -06:00
Zhihao Yuan
556d935491
Suppress MSVC warnings and a Codacy warning 2019-11-17 13:42:28 -06:00
Zhihao Yuan
8201a18568
Fix various issues in Argument constructor 
Before this change:

1. When the input is built-in string literal or cv-`char*`,
   `is_optional` constructs temporary `std::string` while
   `mNames` initializer is also constructing `std::string`
   due to the use of `std::initializer_list`.
2. When the input is `std::string_view`, doesn't compile.
3. When the input is `std::string`, `mNames` initializer
   moves `args`.  If argument name is longer than
   `std::string`'s SSO buffer, bad thing will happen because
   `is_optional` will be accessing `args` in moved-from
   states.

Because of the use of `strtol` which expects nul-terminated
input, `is_*` series functions must take `std::string`.  This
restriction may be removed after AppleClang adds `<charconv>`.
But for now, it complicates the patch.  My solution is to
create an array prvalue still, but use a array reference
rather than `std::initializer_list` to refer to it, so that
the code in delegated constructor can keep using fold
expressions after the necessary `std::string` objects being
created.
 2019-11-17 01:51:36 -06:00
Zhihao Yuan
7dd6655a9e
Avoid extra copy made by initializer_list 2019-11-17 01:51:36 -06:00
Zhihao Yuan
56c041707a
Use string_view in getter interface 2019-11-17 01:51:31 -06:00
Zhihao Yuan
f7fe9cf439
Remove unused space in Argument structure 2019-11-16 21:51:01 -06:00
Zhihao Yuan
daeca099e2
Remove undesired access control 2019-11-16 21:45:18 -06:00
Zhihao Yuan
955e1e1e6c
Simplify code with four-legged std::equal 2019-11-16 21:26:49 -06:00
Zhihao Yuan
50c91a0bcc
Clang-format the code 2019-11-16 21:17:53 -06:00
Zhihao Yuan
f84f17d719
Give ArgumentParser value semantics 
fixes: p-ranav/argparse#50
 2019-11-16 15:15:54 -06:00
Zhihao Yuan
9007958c1f
Index arguments without storing their names twice 2019-11-16 14:35:35 -06:00
Zhihao Yuan
3f949fc3f1
Stop sharing argument values with parent parsers 
See also: p-ranav/argparse#50
 2019-11-16 14:33:00 -06:00
Zhihao Yuan
2208ec5b2d
Remove unused copy of parent parsers 2019-11-16 01:51:47 -06:00
Zhihao Yuan
f6e686b69c
Bind extra arguments to actions 
closes: p-ranav/argparse#38
 2019-11-14 01:30:04 -06:00
Zhihao Yuan
dc227448f6
Allow actions that return void 
closes: p-ranav/argparse#39
 2019-11-13 12:54:07 -06:00
Pranav Srinivas Kumar
bda0866320
Merge pull request #44 from lichray/help-stream 
Help stream
 2019-11-13 08:36:58 -06:00
Zhihao Yuan
c6cc306ec8
Remove the undocumented PARSE_ARGS macro 
closes: p-ranav/argparse#41
 2019-11-13 03:00:42 -06:00
Zhihao Yuan
dc74051832
Deprecate print_help() 
closes: p-ranav/argparse#40
 2019-11-13 02:40:15 -06:00
Zhihao Yuan
9d66976421
Print ArgumentParser help with stream insertion 2019-11-13 02:17:28 -06:00
mu001999
dd528a1d70 Add name for anonymous namespace 2019-09-01 21:16:59 +08:00
Pranav Srinivas Kumar
a9bc1c9a4a Closes #28 2019-08-17 17:56:29 -05:00
Pranav Srinivas Kumar
cb04248cfa Updated formatting 2019-08-17 17:01:04 -05:00
Pranav Srinivas Kumar
aba9b10101
Merge pull request #32 from wtdcode/remove-newlines 
Remove extra new lines
 2019-08-06 08:49:01 -05:00
Mio
4712288086 Change the format of required arguments 2019-08-06 20:52:31 +08:00
Mio
39c720e6c0 Add a mIsRquired field 2019-08-06 20:48:51 +08:00
Mio
7cb710f404 Remove extra new lines 2019-08-06 20:41:24 +08:00
Pranav Srinivas Kumar
73f6aa7538 Fixes Issue #24 2019-06-06 21:24:32 -04:00
Pranav Srinivas Kumar
af650392e7 Fixes Issue #22 - Tested w/ Visual Studio 2019 2019-06-05 09:13:51 -04:00
Stephan van Veen
6d46876f5c Do some cleanup in print_help 2019-05-25 20:07:24 +02:00
Stephan van Veen
67e535e171 Move print_help logic into Argument 2019-05-25 20:01:04 +02:00
Stephan van Veen
34d259d892 Sort names on argument construction 2019-05-25 09:49:00 +02:00
Stephan van Veen
d960a41e96 Use local iterator instead of member counter 2019-05-20 22:21:57 +02:00
Stephan van Veen
f2e0bd0de1 Iterate over map instead of both lists 2019-05-20 22:21:57 +02:00
Stephan van Veen
62c2be634a Remove argc argv version of parse_args_internal 2019-05-20 22:21:57 +02:00
Stephan van Veen
9e7b80034e Throw exception in case of unknown argument 2019-05-20 22:21:57 +02:00