15. 用于字符串操作库的 Boost 软件包
STRINGS boost 模块为 STRINGS 实现了一系列辅助宏和函数。
所有函数和符号都在 “strings_boost” 模块中，请使用 require 访问该模块。
require daslib/strings_boost
15.1. 分割和连接
- split(text: string const implicit; delim: string const implicit)
split returns array<string>
argument |
argument type |
|---|---|
text |
string const implicit |
delim |
string const implicit |
Split string given delimiter.
- split_by_chars(text: string const implicit; delim: string const implicit)
split_by_chars returns array<string>
argument |
argument type |
|---|---|
text |
string const implicit |
delim |
string const implicit |
Split string given set of delimiters (string treated as characters).
- join(it: auto const; separator: string const implicit)
join returns auto
argument |
argument type |
|---|---|
it |
auto const |
separator |
string const implicit |
Join mulitiple strings with delimiter.
- join(iterable: array<auto(TT)> const; separator: string const; blk: block<(var writer:StringBuilderWriter;elem:TT const):void> const)
join returns string
argument |
argument type |
|---|---|
iterable |
array<auto(TT)> const |
separator |
string const |
blk |
block<(writer: strings::StringBuilderWriter ;elem:TT const):void> const |
Join mulitiple strings with delimiter.
- join(iterable: iterator<auto(TT)> const; separator: string const; blk: block<(var writer:StringBuilderWriter;elem:TT const):void> const)
join returns string
argument |
argument type |
|---|---|
iterable |
iterator<auto(TT)> const |
separator |
string const |
blk |
block<(writer: strings::StringBuilderWriter ;elem:TT const):void> const |
Join mulitiple strings with delimiter.
- join(iterable: auto(TT) const[]; separator: string const; blk: block<(var writer:StringBuilderWriter;elem:TT const):void> const)
join returns string
argument |
argument type |
|---|---|
iterable |
auto(TT) const[-1] |
separator |
string const |
blk |
block<(writer: strings::StringBuilderWriter ;elem:TT const):void> const |
Join mulitiple strings with delimiter.
- split(text: string const implicit; delim: string const implicit; blk: block<(arg:array<string> const#):auto> const)
split returns auto
argument |
argument type |
|---|---|
text |
string const implicit |
delim |
string const implicit |
blk |
block<(arg:array<string> const#):auto> const |
Split string given delimiter.
- split_by_chars(text: string const implicit; delim: string const implicit; blk: block<(arg:array<string> const#):auto> const)
split_by_chars returns auto
argument |
argument type |
|---|---|
text |
string const implicit |
delim |
string const implicit |
blk |
block<(arg:array<string> const#):auto> const |
Split string given set of delimiters (string treated as characters).
15.2. Formatting
- wide(text: string const implicit; width: int const)
wide returns string
argument |
argument type |
|---|---|
text |
string const implicit |
width |
int const |
Pad string with ` ` character to make it certain width.
15.3. Queries and comparisons
- is_character_at(foo: array<uint8> const implicit; idx: int const; ch: int const)
is_character_at returns auto
argument |
argument type |
|---|---|
foo |
array<uint8> const implicit |
idx |
int const |
ch |
int const |
Returns true if specific character is at specific string position.
- eq(a: string const implicit; b: das_string const)
eq returns auto
argument |
argument type |
|---|---|
a |
string const implicit |
b |
builtin::das_string const |
Compares das_string and string. True if equal.
- eq(b: das_string const; a: string const implicit)
eq returns auto
argument |
argument type |
|---|---|
b |
builtin::das_string const |
a |
string const implicit |
Compares das_string and string. True if equal.
15.4. Replace
- replace_multiple(source: string const; replaces: array<tuple<text:string;replacement:string>> const)
replace_multiple returns string const
argument |
argument type |
|---|---|
source |
string const |
replaces |
array<tuple<text:string;replacement:string>> const |
Replace multiple substrings in string.
15.5. Levenshtein distance
- levenshtein_distance(s: string const implicit; t: string const implicit)
levenshtein_distance returns int
argument |
argument type |
|---|---|
s |
string const implicit |
t |
string const implicit |
Returns Levenshtein distance between two strings.
- levenshtein_distance_fast(s: string const implicit; t: string const implicit)
levenshtein_distance_fast returns int
argument |
argument type |
|---|---|
s |
string const implicit |
t |
string const implicit |
Returns Levenshtein distance between two strings, fast implementation.
15.6. Character traits
- is_hex(ch: int const)
is_hex returns bool
argument |
argument type |
|---|---|
ch |
int const |
Returns true if character is hex digit.
- is_tab_or_space(ch: int const)
is_tab_or_space returns bool
argument |
argument type |
|---|---|
ch |
int const |
Returns true if character is tab or space.