OILS
/
frontend
/
flag_def.py
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#!/usr/bin/env python2
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"""Flag_def.py."""
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from __future__ import print_function
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from frontend import args
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from frontend.flag_spec import (FlagSpec, FlagSpecAndMore, _FlagSpecAndMore)
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from frontend import option_def
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#
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# Definitions for builtin_assign
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#
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EXPORT_SPEC = FlagSpec('export_')
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EXPORT_SPEC.ShortFlag('-n')
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EXPORT_SPEC.ShortFlag('-f') # stubbed
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EXPORT_SPEC.ShortFlag('-p')
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READONLY_SPEC = FlagSpec('readonly')
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# TODO: Check the consistency of -a and -A against values, here and below.
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READONLY_SPEC.ShortFlag('-a')
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READONLY_SPEC.ShortFlag('-A')
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READONLY_SPEC.ShortFlag('-p')
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NEW_VAR_SPEC = FlagSpec('new_var')
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# print stuff
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NEW_VAR_SPEC.ShortFlag('-f')
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NEW_VAR_SPEC.ShortFlag('-F')
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NEW_VAR_SPEC.ShortFlag('-p')
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NEW_VAR_SPEC.ShortFlag('-g') # Look up in global scope
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# Options +r +x +n
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NEW_VAR_SPEC.PlusFlag('x') # export
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NEW_VAR_SPEC.PlusFlag('r') # readonly
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NEW_VAR_SPEC.PlusFlag('n') # named ref
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# Common between readonly/declare
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NEW_VAR_SPEC.ShortFlag('-a')
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NEW_VAR_SPEC.ShortFlag('-A')
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NEW_VAR_SPEC.ShortFlag('-i') # no-op for integers
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UNSET_SPEC = FlagSpec('unset')
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UNSET_SPEC.ShortFlag('-v')
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UNSET_SPEC.ShortFlag('-f')
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#UNSET_SPEC.ShortFlag('-z', args.String)
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#
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# Definitions for builtin_meta
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#
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# Unused because there are no flags! Just --.
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EVAL_SPEC = FlagSpec('eval')
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SOURCE_SPEC = FlagSpec('source')
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SOURCE_SPEC.LongFlag('--builtin')
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COMMAND_SPEC = FlagSpec('command')
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COMMAND_SPEC.ShortFlag('-v')
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# COMMAND_SPEC.ShortFlag('-V') # Another verbose mode.
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TYPE_SPEC = FlagSpec('type')
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TYPE_SPEC.ShortFlag('-f')
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TYPE_SPEC.ShortFlag('-t')
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TYPE_SPEC.ShortFlag('-p')
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TYPE_SPEC.ShortFlag('-P')
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#
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# Definitions for builtin_pure
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#
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ALIAS_SPEC = FlagSpec('alias') # no flags yet
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UNALIAS_SPEC = FlagSpec('unalias') # no flags yet
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SHOPT_SPEC = FlagSpec('shopt')
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SHOPT_SPEC.ShortFlag('-s', long_name='--set')
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SHOPT_SPEC.ShortFlag('-u', long_name='--unset')
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SHOPT_SPEC.ShortFlag('-o') # use 'set -o' names
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# TODO: --print could print in a verbose format. (Annoying: codegen conflicts
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# with Python keyword.)
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SHOPT_SPEC.ShortFlag('-p')
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SHOPT_SPEC.ShortFlag('-q') # query option settings
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HASH_SPEC = FlagSpec('hash')
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HASH_SPEC.ShortFlag('-r')
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ECHO_SPEC = FlagSpec('echo')
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ECHO_SPEC.ShortFlag('-e') # no backslash escapes
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ECHO_SPEC.ShortFlag('-n')
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#
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# osh/builtin_printf.py
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#
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PRINTF_SPEC = FlagSpec('printf')
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PRINTF_SPEC.ShortFlag('-v', args.String)
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#
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# osh/builtin_misc.py
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#
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READ_SPEC = FlagSpec('read')
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READ_SPEC.ShortFlag('-r')
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READ_SPEC.ShortFlag('-s') # silent
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READ_SPEC.ShortFlag('-u', args.Int) # file descriptor
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READ_SPEC.ShortFlag('-t', args.Float) # timeout
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READ_SPEC.ShortFlag('-n', args.Int)
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READ_SPEC.ShortFlag('-a', args.String) # name of array to read into
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READ_SPEC.ShortFlag('-d', args.String)
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READ_SPEC.ShortFlag('-p', args.String) # prompt
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# YSH extensions
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READ_SPEC.ShortFlag('-0') # until NUL, like -r -d ''
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READ_SPEC.LongFlag('--all')
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READ_SPEC.LongFlag('--line')
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# don't strip the trailing newline
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READ_SPEC.LongFlag('--with-eol')
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# Decode QSN after reading a line. Note: A QSN string can't have literal
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# newlines or tabs; they must be escaped.
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READ_SPEC.ShortFlag('-q', long_name='--qsn')
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MAPFILE_SPEC = FlagSpec('mapfile')
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MAPFILE_SPEC.ShortFlag('-t')
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CD_SPEC = FlagSpec('cd')
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CD_SPEC.ShortFlag('-L')
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CD_SPEC.ShortFlag('-P')
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PUSHD_SPEC = FlagSpec('pushd')
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POPD_SPEC = FlagSpec('popd')
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DIRS_SPEC = FlagSpec('dirs')
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DIRS_SPEC.ShortFlag('-c')
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DIRS_SPEC.ShortFlag('-l')
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DIRS_SPEC.ShortFlag('-p')
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DIRS_SPEC.ShortFlag('-v')
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PWD_SPEC = FlagSpec('pwd')
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PWD_SPEC.ShortFlag('-L')
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PWD_SPEC.ShortFlag('-P')
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HELP_SPEC = FlagSpec('help')
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#HELP_SPEC.ShortFlag('-i') # show index
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# Note: bash has help -d -m -s, which change the formatting
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HISTORY_SPEC = FlagSpec('history')
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HISTORY_SPEC.ShortFlag('-a')
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HISTORY_SPEC.ShortFlag('-r')
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HISTORY_SPEC.ShortFlag('-c')
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HISTORY_SPEC.ShortFlag('-d', args.Int)
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#
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# osh/builtin_process.py
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#
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EXEC_SPEC = FlagSpec('exec')
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WAIT_SPEC = FlagSpec('wait')
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WAIT_SPEC.ShortFlag('-n')
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TRAP_SPEC = FlagSpec('trap')
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TRAP_SPEC.ShortFlag('-p')
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TRAP_SPEC.ShortFlag('-l')
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JOB_SPEC = FlagSpec('jobs')
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JOB_SPEC.ShortFlag('-l', help='long format')
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JOB_SPEC.ShortFlag('-p', help='prints PID only')
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JOB_SPEC.LongFlag('--debug', help='display debug info')
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#
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# FlagSpecAndMore
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#
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#
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# set and shopt
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#
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def _AddShellOptions(spec):
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# type: (_FlagSpecAndMore) -> None
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"""Shared between 'set' builtin and the shell's own arg parser."""
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spec.InitOptions()
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spec.InitShopt()
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for opt in option_def.All():
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if opt.builtin == 'set':
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spec.Option(opt.short_flag, opt.name)
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# Notes:
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# - shopt option don't need to be registered; we validate elsewhere
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# - 'interactive' Has a cell for internal use, but isn't allowed to be
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# modified.
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MAIN_SPEC = FlagSpecAndMore('main')
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MAIN_SPEC.ShortFlag('-c', args.String,
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quit_parsing_flags=True) # command string
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MAIN_SPEC.LongFlag('--help')
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MAIN_SPEC.LongFlag('--version')
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# --tool ysh-ify, etc.
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# default is ''
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#
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# More ideas for tools
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# undefined-vars - a static analysis pass
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# parse-glob - to debug parsing
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# parse-printf
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MAIN_SPEC.LongFlag('--tool', ['tokens', 'arena', 'syntax-tree', 'ysh-ify',
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'deps', 'cat-em'])
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MAIN_SPEC.ShortFlag('-i') # interactive
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MAIN_SPEC.ShortFlag('-l') # login - currently no-op
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MAIN_SPEC.LongFlag('--login') # login - currently no-op
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MAIN_SPEC.LongFlag('--headless') # accepts ECMD, etc.
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# TODO: -h too
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# the output format when passing -n
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MAIN_SPEC.LongFlag(
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'--ast-format',
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['text', 'abbrev-text', 'html', 'abbrev-html', 'oheap', 'none'],
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default='abbrev-text')
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# Defines completion style.
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MAIN_SPEC.LongFlag('--completion-display', ['minimal', 'nice'], default='nice')
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# TODO: Add option for YSH prompt style? RHS prompt?
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MAIN_SPEC.LongFlag('--completion-demo')
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# $SH -n won't reparse a[x+1] and ``. Note that $SH --tool automatically turns
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# it on.
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# TODO: Do we only need this for the "arena invariant"? e.g. test/arena.sh I
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# think we can REMOVE it if we get rid of the arena.
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MAIN_SPEC.LongFlag('--one-pass-parse')
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MAIN_SPEC.LongFlag('--print-status') # TODO: Replace with a shell hook
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MAIN_SPEC.LongFlag('--debug-file', args.String)
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MAIN_SPEC.LongFlag('--xtrace-to-debug-file')
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# This flag has is named like bash's equivalent. We got rid of --norc because
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# it can simply by --rcfile /dev/null.
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MAIN_SPEC.LongFlag('--rcfile', args.String)
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MAIN_SPEC.LongFlag('--rcdir', args.String)
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MAIN_SPEC.LongFlag('--norc')
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# e.g. to pass data on stdin but pretend that it came from a .hay file
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MAIN_SPEC.LongFlag('--location-str', args.String)
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MAIN_SPEC.LongFlag('--location-start-line', args.Int)
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_AddShellOptions(MAIN_SPEC)
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SET_SPEC = FlagSpecAndMore('set')
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_AddShellOptions(SET_SPEC)
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#
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# Types for completion
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#
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def _DefineCompletionFlags(spec):
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# type: (_FlagSpecAndMore) -> None
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spec.ShortFlag('-F', args.String, help='Complete with this function')
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spec.ShortFlag('-W', args.String, help='Complete with these words')
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spec.ShortFlag('-C', args.String,
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help='Complete with stdout lines of this command')
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spec.ShortFlag(
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'-P',
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args.String,
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help=
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'Prefix is added at the beginning of each possible completion after '
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'all other options have been applied.')
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spec.ShortFlag('-S',
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args.String,
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help='Suffix is appended to each possible completion after '
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'all other options have been applied.')
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spec.ShortFlag('-X',
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args.String,
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help='''
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A glob pattern to further filter the matches. It is applied to the list of
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possible completions generated by the preceding options and arguments, and each
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completion matching filterpat is removed from the list. A leading ! in
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filterpat negates the pattern; in this case, any completion not matching
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filterpat is removed.
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''')
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def _DefineCompletionOptions(spec):
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# type: (_FlagSpecAndMore) -> None
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"""Common -o options for complete and compgen."""
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spec.InitOptions()
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# bashdefault, default, filenames, nospace are used in git
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spec.Option2('bashdefault',
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help='If nothing matches, perform default bash completions')
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spec.Option2(
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'default',
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help="If nothing matches, use readline's default filename completion")
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spec.Option2(
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'filenames',
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help="The completion function generates filenames and should be "
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"post-processed")
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spec.Option2('dirnames',
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help="If nothing matches, perform directory name completion")
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spec.Option2(
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'nospace',
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help="Don't append a space to words completed at the end of the line")
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spec.Option2(
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'plusdirs',
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help="After processing the compspec, attempt directory name completion "
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"and return those matches.")
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def _DefineCompletionActions(spec):
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# type: (_FlagSpecAndMore) -> None
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"""Common -A actions for complete and compgen."""
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# NOTE: git-completion.bash uses -f and -v.
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# My ~/.bashrc on Ubuntu uses -d, -u, -j, -v, -a, -c, -b
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spec.InitActions()
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spec.Action('a', 'alias')
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spec.Action('b', 'binding')
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spec.Action('c', 'command')
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spec.Action('d', 'directory')
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spec.Action('f', 'file')
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spec.Action('j', 'job')
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spec.Action('u', 'user')
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spec.Action('v', 'variable')
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spec.Action(None, 'builtin')
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spec.Action(None, 'function')
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spec.Action(None, 'helptopic') # help
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spec.Action(None, 'setopt') # set -o
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spec.Action(None, 'shopt') # shopt -s
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spec.Action(None, 'signal') # kill -s
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spec.Action(None, 'stopped')
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COMPLETE_SPEC = FlagSpecAndMore('complete')
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_DefineCompletionFlags(COMPLETE_SPEC)
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_DefineCompletionOptions(COMPLETE_SPEC)
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_DefineCompletionActions(COMPLETE_SPEC)
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COMPLETE_SPEC.ShortFlag('-E', help='Define the compspec for an empty line')
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COMPLETE_SPEC.ShortFlag(
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'-D', help='Define the compspec that applies when nothing else matches')
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# I would like this to be less compatible
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# Field name conflicts with 'print' keyword
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#COMPLETE_SPEC.LongFlag(
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# '--print', help='Print spec')
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COMPGEN_SPEC = FlagSpecAndMore('compgen') # for -o and -A
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# TODO: Add -l for COMP_LINE. -p for COMP_POINT ?
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_DefineCompletionFlags(COMPGEN_SPEC)
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_DefineCompletionOptions(COMPGEN_SPEC)
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_DefineCompletionActions(COMPGEN_SPEC)
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COMPOPT_SPEC = FlagSpecAndMore('compopt') # for -o
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_DefineCompletionOptions(COMPOPT_SPEC)
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COMPADJUST_SPEC = FlagSpecAndMore('compadjust')
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COMPADJUST_SPEC.ShortFlag(
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'-n',
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args.String,
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help=
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'Do NOT split by these characters. It omits them from COMP_WORDBREAKS.')
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COMPADJUST_SPEC.ShortFlag('-s',
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help='Treat --foo=bar and --foo bar the same way.')
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COMPEXPORT_SPEC = FlagSpecAndMore('compexport')
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COMPEXPORT_SPEC.ShortFlag(
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'-c', args.String,
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help='Shell string to complete, like sh -c')
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COMPEXPORT_SPEC.LongFlag(
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'--begin', args.Int,
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help='Simulate readline begin index into line buffer')
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| 383 |
COMPEXPORT_SPEC.LongFlag(
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'--end', args.Int,
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help='Simulate readline end index into line buffer')
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# jlines is an array of strings with NO header line
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# TSV8 has a header line. It can have flag descriptions and other data.
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COMPEXPORT_SPEC.LongFlag('--format', ['jlines', 'tsv8'],
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default='jlines',
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help='Output format')
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| 392 |
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| 393 |
#
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| 394 |
# Pure YSH
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| 395 |
#
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| 396 |
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| 397 |
TRY_SPEC = FlagSpec('try_')
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| 398 |
TRY_SPEC.LongFlag('--assign',
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| 399 |
args.String,
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| 400 |
help='Assign status to this variable, and return 0')
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| 401 |
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| 402 |
BOOLSTATUS_SPEC = FlagSpec('boolstatus')
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| 403 |
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| 404 |
# Future directions:
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| 405 |
# run --builtin, run --command, run --proc:
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| 406 |
# to "replace" 'builtin' and # 'command'
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| 407 |
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| 408 |
APPEND_SPEC = FlagSpec('append')
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| 410 |
SHVAR_SPEC = FlagSpec('shvar')
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| 411 |
#SHVAR_SPEC.Flag('-temp', args.String,
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| 412 |
# help='Push a NAME=val binding')
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| 413 |
#SHVAR_SPEC.Flag('-env', args.String,
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| 414 |
# help='Push a NAME=val binding and set the -x flag')
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PP_SPEC = FlagSpec('pp')
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# --verbose?
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| 419 |
FORK_SPEC = FlagSpec('fork')
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| 420 |
FORKWAIT_SPEC = FlagSpec('forkwait')
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| 421 |
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| 422 |
# Might want --list at some point
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| 423 |
MODULE_SPEC = FlagSpec('module')
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| 425 |
RUNPROC_SPEC = FlagSpec('runproc')
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| 426 |
RUNPROC_SPEC.ShortFlag('-h', args.Bool, help='Show all procs')
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| 427 |
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| 428 |
WRITE_SPEC = FlagSpec('write')
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| 429 |
WRITE_SPEC.LongFlag('--sep',
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| 430 |
args.String,
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| 431 |
default='\n',
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| 432 |
help='Characters to separate each argument')
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| 433 |
WRITE_SPEC.LongFlag('--end',
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| 434 |
args.String,
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| 435 |
default='\n',
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| 436 |
help='Characters to terminate the whole invocation')
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| 437 |
WRITE_SPEC.ShortFlag('-n',
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| 438 |
args.Bool,
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| 439 |
help="Omit newline (synonym for -end '')")
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| 440 |
WRITE_SPEC.LongFlag('--j8',
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| 441 |
args.Bool,
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| 442 |
default=False,
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| 443 |
help='Write elements with J8 notation, one per line')
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| 444 |
# TODO: --jlines for conditional j"" prefix? Like maybe_shell_encode()
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| 445 |
|
| 446 |
# TODO: remove this
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| 447 |
WRITE_SPEC.LongFlag('--qsn',
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| 448 |
args.Bool,
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| 449 |
default=False,
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| 450 |
help='Write elements in QSN format')
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| 451 |
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| 452 |
# x means I want \x00
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| 453 |
# u means I want \u{1234}
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| 454 |
# raw is utf-8
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| 455 |
# might also want: maybe?
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| 456 |
WRITE_SPEC.LongFlag('--unicode', ['raw', 'u', 'x'],
|
| 457 |
default='raw',
|
| 458 |
help='Encode QSN with these options. '
|
| 459 |
'x assumes an opaque byte string, while raw and u try to '
|
| 460 |
'decode UTF-8.')
|
| 461 |
|
| 462 |
PUSH_REGISTERS_SPEC = FlagSpec('push-registers')
|
| 463 |
|
| 464 |
FOPEN_SPEC = FlagSpec('fopen')
|
| 465 |
|
| 466 |
#
|
| 467 |
# Tea
|
| 468 |
#
|
| 469 |
|
| 470 |
TEA_MAIN_SPEC = FlagSpec('tea_main')
|
| 471 |
TEA_MAIN_SPEC.ShortFlag('-n', args.Bool) # Parse
|
| 472 |
TEA_MAIN_SPEC.ShortFlag('-c', args.String) # Command snippet
|
| 473 |
TEA_MAIN_SPEC.LongFlag('--translate', args.Bool)
|
| 474 |
|
| 475 |
#
|
| 476 |
# JSON
|
| 477 |
#
|
| 478 |
|
| 479 |
JSON_WRITE_SPEC = FlagSpec('json_write')
|
| 480 |
|
| 481 |
# TODO: --compact is probably better
|
| 482 |
# --pretty=F is like JSON.stringify(d, null, 0)
|
| 483 |
JSON_WRITE_SPEC.LongFlag('--pretty',
|
| 484 |
args.Bool,
|
| 485 |
default=True,
|
| 486 |
help='Whitespace in output (default true)')
|
| 487 |
|
| 488 |
# JSON has the questionable decision of allowing (unpaired) surrogate like
|
| 489 |
# \udc00.
|
| 490 |
# When encoding, we try to catch the error on OUR side, rather than letting it
|
| 491 |
# travel over the wire. But you can disable this.
|
| 492 |
JSON_WRITE_SPEC.LongFlag(
|
| 493 |
'--surrogate-ok',
|
| 494 |
args.Bool,
|
| 495 |
default=False,
|
| 496 |
help='Invalid UTF-8 can be encoded as surrogate like \\udc00')
|
| 497 |
|
| 498 |
JSON_WRITE_SPEC.LongFlag('--indent',
|
| 499 |
args.Int,
|
| 500 |
default=2,
|
| 501 |
help='Indent JSON by this amount')
|
| 502 |
|
| 503 |
JSON_READ_SPEC = FlagSpec('json_read')
|
| 504 |
# yajl has this option
|
| 505 |
JSON_READ_SPEC.LongFlag('--validate',
|
| 506 |
args.Bool,
|
| 507 |
default=True,
|
| 508 |
help='Validate UTF-8')
|