option::PrintUsageImplementation Struct Reference

#include <optionparser.h>

Classes
struct	FunctionWriter
struct	IStringWriter
class	LinePartIterator
class	LineWrapper
struct	OStreamWriter
struct	StreamWriter
struct	SyscallWriter
struct	TemporaryWriter

Static Public Member Functions
static void	upmax (int &i1, int i2)
static void	indent (IStringWriter &write, int &x, int want_x)
static bool	isWideChar (unsigned ch)
	Returns true if ch is the unicode code point of a wide character. More...
static void	printUsage (IStringWriter &write, const Descriptor usage[], int width=80, int last_column_min_percent=50, int last_column_own_line_max_percent=75)

Detailed Description

Definition at line 1724 of file optionparser.h.

Member Function Documentation

static void option::PrintUsageImplementation::indent ( IStringWriter &  write, int &  x, int  want_x  )

inlinestatic

Definition at line 1867 of file optionparser.h.

References write().

Referenced by option::PrintUsageImplementation::LineWrapper::flush(), printUsage(), and option::PrintUsageImplementation::LineWrapper::write_one_line().

static bool option::PrintUsageImplementation::isWideChar ( unsigned  ch )

inlinestatic

Returns true if ch is the unicode code point of a wide character.

Note

The following character ranges are treated as wide

* 1100..115F
* 2329..232A  (just 2 characters!)
* 2E80..A4C6  except for 303F
* A960..A97C
* AC00..D7FB
* F900..FAFF
* FE10..FE6B
* FF01..FF60
* FFE0..FFE6
* 1B000......
* 

Definition at line 1903 of file optionparser.h.

Referenced by option::PrintUsageImplementation::LineWrapper::process(), and option::PrintUsageImplementation::LinePartIterator::update_length().

static void option::PrintUsageImplementation::printUsage ( IStringWriter &  write, const Descriptor  usage[], int  width = 80, int  last_column_min_percent = 50, int  last_column_own_line_max_percent = 75  )

inlinestatic

We don't let rows that don't use table separators ( or ) influence the width of column 0. This allows the user to interject section headers or explanatory paragraphs that do not participate in the table layout.

If lastcolumn == 0 we must disable print_last_column_on_own_line because otherwise 2 copies of the last (and only) column would be output. Actually this is just defensive programming. It is currently not possible that lastcolumn==0 and print_last_column_on_own_line==true at the same time, because lastcolumn==0 => tabstop[lastcolumn] == 0 => rightwidth==width => rightwidth>=last_column_min_width (unless someone passes a bullshit value >100 for last_column_min_percent) => the above if condition is false => print_last_column_on_own_line==false

an interjection that doesn't contain or

NOTE: This code block is not necessarily executed for each line, because some rows may have fewer columns.

Definition at line 2447 of file optionparser.h.

References option::PrintUsageImplementation::LinePartIterator::column(), option::PrintUsageImplementation::LinePartIterator::data(), option::PrintUsageImplementation::LineWrapper::flush(), indent(), option::PrintUsageImplementation::LinePartIterator::length(), option::PrintUsageImplementation::LinePartIterator::line(), option::PrintUsageImplementation::LinePartIterator::next(), option::PrintUsageImplementation::LinePartIterator::nextRow(), option::PrintUsageImplementation::LinePartIterator::nextTable(), option::PrintUsageImplementation::LineWrapper::process(), option::PrintUsageImplementation::LinePartIterator::restartRow(), option::PrintUsageImplementation::LinePartIterator::restartTable(), option::PrintUsageImplementation::LinePartIterator::screenLength(), upmax(), and write().

Referenced by option::printUsage().

static void option::PrintUsageImplementation::upmax ( int &  i1, int  i2  )

inlinestatic

Definition at line 1851 of file optionparser.h.

Referenced by option::PrintUsageImplementation::LinePartIterator::next(), and printUsage().

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The documentation for this struct was generated from the following file:

• casa/code/stdcasa/optionparser.h