string_utils.cpp File Reference

#include "string_utils.h"
#include "exception_utils.h"
#include "invariant.h"
#include <algorithm>
#include <cctype>
#include <iomanip>

Include dependency graph for string_utils.cpp:

Go to the source code of this file.

Functions
std::string	strip_string (const std::string &s)
	Remove all whitespace characters from either end of a string.
void	split_string (const std::string &s, char delim, std::vector< std::string > &result, bool strip, bool remove_empty)
void	split_string (const std::string &s, char delim, std::string &left, std::string &right, bool strip)
std::vector< std::string >	split_string (const std::string &s, char delim, bool strip, bool remove_empty)
	Given a string s, split into a sequence of substrings when separated by specified delimiter.
std::string	trim_from_last_delimiter (const std::string &s, const char delim)
std::string	escape (const std::string &s)
	Generic escaping of strings; this is not meant to be a particular programming language.
std::string	escape_non_alnum (const std::string &to_escape)
	Replace non-alphanumeric characters with _xx escapes, where xx are hex digits.
std::string	capitalize (const std::string &str)
std::string	wrap_line (const std::string &line, const std::size_t left_margin, const std::size_t width)
	Wrap line at spaces to not extend past the right margin, and include given padding with spaces to the left.
std::string	wrap_line (std::string::const_iterator left, std::string::const_iterator right, const std::size_t left_margin, const std::size_t width)
	Wrap line at spaces to not extend past the right margin, and include given padding with spaces to the left.

Function Documentation

capitalize()

std::string capitalize

(

const std::string &

str

)

Definition at line 175 of file string_utils.cpp.

escape()

std::string escape

(

const std::string &

s

)

Generic escaping of strings; this is not meant to be a particular programming language.

Definition at line 138 of file string_utils.cpp.

escape_non_alnum()

std::string escape_non_alnum

(

const std::string &

to_escape

)

Replace non-alphanumeric characters with _xx escapes, where xx are hex digits.

Underscores are replaced by __.

Parameters

to_escape

string to escape

Returns

string with non-alphanumeric characters escaped

Definition at line 153 of file string_utils.cpp.

split_string() [1/3]

std::vector< std::string > split_string	(	const std::string &	s,
		char	delim,
		bool	strip = false,
		bool	remove_empty = false )

Given a string s, split into a sequence of substrings when separated by specified delimiter.

Parameters

s	The string to split up
delim	The character to use as the delimiter
strip	If true, strip_string will be used on each element, removing whitespace from the beginning and end of each element
remove_empty	If true, all empty-string elements will be removed. This is applied after strip so whitespace only elements will be removed if both are set to true.

Definition at line 116 of file string_utils.cpp.

split_string() [2/3]

void split_string	(	const std::string &	s,
		char	delim,
		std::string &	left,
		std::string &	right,
		bool	strip )

Definition at line 91 of file string_utils.cpp.

split_string() [3/3]

void split_string	(	const std::string &	s,
		char	delim,
		std::vector< std::string > &	result,
		bool	strip,
		bool	remove_empty )

Definition at line 39 of file string_utils.cpp.

strip_string()

std::string strip_string

(

const std::string &

s

)

Remove all whitespace characters from either end of a string.

Whitespace in the middle of the string is left unchanged

Parameters

s	the string to strip

Returns

The stripped string

Definition at line 21 of file string_utils.cpp.

trim_from_last_delimiter()

std::string trim_from_last_delimiter	(	const std::string &	s,
		const char	delim )

Definition at line 127 of file string_utils.cpp.

wrap_line() [1/2]

std::string wrap_line	(	const std::string &	line,
		const std::size_t	left_margin = 0,
		const std::size_t	width = 80 )

Wrap line at spaces to not extend past the right margin, and include given padding with spaces to the left.

The given string should not contain any newlines.

Parameters

line	line to wrap, should not contain newlines
left_margin	each line will be padded to the left with left_margin spaces
width	width of the resulting text, i.e., right margin

Returns

resulting string such that each line has length less or equal to width, and each line includes left_margin spaces to the left; if the given line cannot be wrapped (i.e., it cannot be broken up at spaces such that every resulting line fits within the margin), the given line is returned unchanged

Definition at line 184 of file string_utils.cpp.

wrap_line() [2/2]

std::string wrap_line	(	const std::string::const_iterator	left,
		const std::string::const_iterator	right,
		const std::size_t	left_margin = 0,
		const std::size_t	width = 80 )

Wrap line at spaces to not extend past the right margin, and include given padding with spaces to the left.

The given string should not contain any newlines.

Parameters

left	iterator to beginning of string
right	iterator to end of string
left_margin	each line will be padded to the left with left_margin spaces
width	width of the resulting text, i.e., right margin

Returns

resulting string such that each line has length less or equal to width, and each line includes left_margin spaces to the left; if the given line cannot be wrapped (i.e., it cannot be broken up at spaces such that every resulting line fits within the margin), the given line is returned unchanged

Definition at line 192 of file string_utils.cpp.