mirror of
https://github.com/python/cpython.git
synced 2025-07-24 11:44:31 +00:00
Change "\," to just "," in function signatures. This is easier to maintain,
works better with LaTeX2HTML, and allows some simplification of the python.sty macros.
This commit is contained in:
parent
c9a4438c16
commit
cce1090d49
129 changed files with 705 additions and 703 deletions
|
@ -1,12 +1,11 @@
|
|||
\section{Standard Module \sectcode{string}}
|
||||
\label{module-string}
|
||||
|
||||
\stmodindex{string}
|
||||
|
||||
This module defines some constants useful for checking character
|
||||
classes and some useful string functions. See the module
|
||||
\code{re} for string functions based on regular expressions.
|
||||
\refstmodindex{re}
|
||||
\module{re}\refstmodindex{re} for string functions based on regular
|
||||
expressions.
|
||||
|
||||
The constants defined in this module are are:
|
||||
|
||||
|
@ -20,16 +19,16 @@ The constants defined in this module are are:
|
|||
\end{datadesc}
|
||||
|
||||
\begin{datadesc}{letters}
|
||||
The concatenation of the strings \code{lowercase} and
|
||||
\code{uppercase} described below.
|
||||
The concatenation of the strings \function{lowercase()} and
|
||||
\function{uppercase()} described below.
|
||||
\end{datadesc}
|
||||
|
||||
\begin{datadesc}{lowercase}
|
||||
A string containing all the characters that are considered lowercase
|
||||
letters. On most systems this is the string
|
||||
\code{'abcdefghijklmnopqrstuvwxyz'}. Do not change its definition ---
|
||||
the effect on the routines \code{upper} and \code{swapcase} is
|
||||
undefined.
|
||||
the effect on the routines \function{upper()} and
|
||||
\function{swapcase()} is undefined.
|
||||
\end{datadesc}
|
||||
|
||||
\begin{datadesc}{octdigits}
|
||||
|
@ -40,16 +39,16 @@ The constants defined in this module are are:
|
|||
A string containing all the characters that are considered uppercase
|
||||
letters. On most systems this is the string
|
||||
\code{'ABCDEFGHIJKLMNOPQRSTUVWXYZ'}. Do not change its definition ---
|
||||
the effect on the routines \code{lower} and \code{swapcase} is
|
||||
undefined.
|
||||
the effect on the routines \function{lower()} and
|
||||
\function{swapcase()} is undefined.
|
||||
\end{datadesc}
|
||||
|
||||
\begin{datadesc}{whitespace}
|
||||
A string containing all characters that are considered whitespace.
|
||||
On most systems this includes the characters space, tab, linefeed,
|
||||
return, formfeed, and vertical tab. Do not change its definition ---
|
||||
the effect on the routines \code{strip} and \code{split} is
|
||||
undefined.
|
||||
the effect on the routines \function{strip()} and \function{split()}
|
||||
is undefined.
|
||||
\end{datadesc}
|
||||
|
||||
The functions defined in this module are:
|
||||
|
@ -60,10 +59,11 @@ The functions defined in this module are:
|
|||
Convert a string to a floating point number. The string must have
|
||||
the standard syntax for a floating point literal in Python, optionally
|
||||
preceded by a sign (\samp{+} or \samp{-}). Note that this behaves
|
||||
identical to the built-in function \code{float()} when passed a string.
|
||||
identical to the built-in function
|
||||
\function{float()}\bifuncindex{float} when passed a string.
|
||||
\end{funcdesc}
|
||||
|
||||
\begin{funcdesc}{atoi}{s\optional{\, base}}
|
||||
\begin{funcdesc}{atoi}{s\optional{, base}}
|
||||
Convert string \var{s} to an integer in the given \var{base}. The
|
||||
string must consist of one or more digits, optionally preceded by a
|
||||
sign (\samp{+} or \samp{-}). The \var{base} defaults to 10. If it is
|
||||
|
@ -72,20 +72,20 @@ string (after stripping the sign): \samp{0x} or \samp{0X} means 16,
|
|||
\samp{0} means 8, anything else means 10. If \var{base} is 16, a
|
||||
leading \samp{0x} or \samp{0X} is always accepted. Note that when
|
||||
invoked without \var{base} or with \var{base} set to 10, this behaves
|
||||
identical to the built-in function \code{int()} when passed a string.
|
||||
identical to the built-in function \function{int()} when passed a string.
|
||||
(Also note: for a more flexible interpretation of numeric literals,
|
||||
use the built-in function \code{eval()}.)
|
||||
\bifuncindex{eval}
|
||||
use the built-in function \function{eval()}\bifuncindex{eval}.)
|
||||
\end{funcdesc}
|
||||
|
||||
\begin{funcdesc}{atol}{s\optional{\, base}}
|
||||
Convert string \var{s} to a long integer in the given \var{base}. The
|
||||
\begin{funcdesc}{atol}{s\optional{, base}}
|
||||
Convert string \var{s} to a long integer in the given \var{base}. The
|
||||
string must consist of one or more digits, optionally preceded by a
|
||||
sign (\samp{+} or \samp{-}). The \var{base} argument has the same
|
||||
meaning as for \code{atoi()}. A trailing \samp{l} or \samp{L} is not
|
||||
allowed, except if the base is 0. Note that when invoked without
|
||||
meaning as for \function{atoi()}. A trailing \samp{l} or \samp{L} is
|
||||
not allowed, except if the base is 0. Note that when invoked without
|
||||
\var{base} or with \var{base} set to 10, this behaves identical to the
|
||||
built-in function \code{long()} when passed a string.
|
||||
built-in function \function{long()}\bifuncindex{long} when passed a
|
||||
string.
|
||||
\end{funcdesc}
|
||||
|
||||
\begin{funcdesc}{capitalize}{word}
|
||||
|
@ -93,13 +93,14 @@ Capitalize the first character of the argument.
|
|||
\end{funcdesc}
|
||||
|
||||
\begin{funcdesc}{capwords}{s}
|
||||
Split the argument into words using \code{split}, capitalize each word
|
||||
using \code{capitalize}, and join the capitalized words using
|
||||
\code{join}. Note that this replaces runs of whitespace characters by
|
||||
a single space, and removes leading and trailing whitespace.
|
||||
Split the argument into words using \function{split()}, capitalize
|
||||
each word using \function{capitalize()}, and join the capitalized
|
||||
words using \function{join()}. Note that this replaces runs of
|
||||
whitespace characters by a single space, and removes leading and
|
||||
trailing whitespace.
|
||||
\end{funcdesc}
|
||||
|
||||
\begin{funcdesc}{expandtabs}{s\, tabsize}
|
||||
\begin{funcdesc}{expandtabs}{s, tabsize}
|
||||
Expand tabs in a string, i.e.\ replace them by one or more spaces,
|
||||
depending on the current column and the given tab size. The column
|
||||
number is reset to zero after each newline occurring in the string.
|
||||
|
@ -107,29 +108,29 @@ This doesn't understand other non-printing characters or escape
|
|||
sequences.
|
||||
\end{funcdesc}
|
||||
|
||||
\begin{funcdesc}{find}{s\, sub\optional{\, start\optional{\,end}}}
|
||||
\begin{funcdesc}{find}{s, sub\optional{, start\optional{,end}}}
|
||||
Return the lowest index in \var{s} where the substring \var{sub} is
|
||||
found such that \var{sub} is wholly contained in
|
||||
\code{\var{s}[\var{start}:\var{end}]}. Return -1 on failure.
|
||||
\code{\var{s}[\var{start}:\var{end}]}. Return \code{-1} on failure.
|
||||
Defaults for \var{start} and \var{end} and interpretation of negative
|
||||
values is the same as for slices.
|
||||
\end{funcdesc}
|
||||
|
||||
\begin{funcdesc}{rfind}{s\, sub\optional{\, start\optional{\,end}}}
|
||||
Like \code{find} but find the highest index.
|
||||
\begin{funcdesc}{rfind}{s, sub\optional{, start\optional{, end}}}
|
||||
Like \function{find()} but find the highest index.
|
||||
\end{funcdesc}
|
||||
|
||||
\begin{funcdesc}{index}{s\, sub\optional{\, start\optional{\,end}}}
|
||||
Like \code{find} but raise \code{ValueError} when the substring is
|
||||
not found.
|
||||
\begin{funcdesc}{index}{s, sub\optional{, start\optional{, end}}}
|
||||
Like \function{find()} but raise \exception{ValueError} when the
|
||||
substring is not found.
|
||||
\end{funcdesc}
|
||||
|
||||
\begin{funcdesc}{rindex}{s\, sub\optional{\, start\optional{\,end}}}
|
||||
Like \code{rfind} but raise \code{ValueError} when the substring is
|
||||
not found.
|
||||
\begin{funcdesc}{rindex}{s, sub\optional{, start\optional{, end}}}
|
||||
Like \function{rfind()} but raise \exception{ValueError} when the
|
||||
substring is not found.
|
||||
\end{funcdesc}
|
||||
|
||||
\begin{funcdesc}{count}{s\, sub\optional{\, start\optional{\,end}}}
|
||||
\begin{funcdesc}{count}{s, sub\optional{, start\optional{, end}}}
|
||||
Return the number of (non-overlapping) occurrences of substring
|
||||
\var{sub} in string \code{\var{s}[\var{start}:\var{end}]}.
|
||||
Defaults for \var{start} and \var{end} and interpretation of negative
|
||||
|
@ -141,13 +142,13 @@ Convert letters to lower case.
|
|||
\end{funcdesc}
|
||||
|
||||
\begin{funcdesc}{maketrans}{from, to}
|
||||
Return a translation table suitable for passing to \code{string.translate}
|
||||
or \code{regex.compile}, that will map each character in \var{from}
|
||||
into the character at the same position in \var{to}; \var{from} and
|
||||
\var{to} must have the same length.
|
||||
Return a translation table suitable for passing to
|
||||
\function{translate()} or \function{regex.compile()}, that will map
|
||||
each character in \var{from} into the character at the same position
|
||||
in \var{to}; \var{from} and \var{to} must have the same length.
|
||||
\end{funcdesc}
|
||||
|
||||
\begin{funcdesc}{split}{s\optional{\, sep\optional{\, maxsplit}}}
|
||||
\begin{funcdesc}{split}{s\optional{, sep\optional{, maxsplit}}}
|
||||
Return a list of the words of the string \var{s}. If the optional
|
||||
second argument \var{sep} is absent or \code{None}, the words are
|
||||
separated by arbitrary strings of whitespace characters (space, tab,
|
||||
|
@ -161,24 +162,24 @@ remainder of the string is returned as the final element of the list
|
|||
(thus, the list will have at most \code{\var{maxsplit}+1} elements).
|
||||
\end{funcdesc}
|
||||
|
||||
\begin{funcdesc}{splitfields}{s\optional{\, sep\optional{\, maxsplit}}}
|
||||
This function behaves identically to \code{split}. (In the past,
|
||||
\code{split} was only used with one argument, while \code{splitfields}
|
||||
was only used with two arguments.)
|
||||
\begin{funcdesc}{splitfields}{s\optional{, sep\optional{, maxsplit}}}
|
||||
This function behaves identically to \function{split()}. (In the
|
||||
past, \function{split()} was only used with one argument, while
|
||||
\function{splitfields()} was only used with two arguments.)
|
||||
\end{funcdesc}
|
||||
|
||||
\begin{funcdesc}{join}{words\optional{\, sep}}
|
||||
\begin{funcdesc}{join}{words\optional{, sep}}
|
||||
Concatenate a list or tuple of words with intervening occurrences of
|
||||
\var{sep}. The default value for \var{sep} is a single space character.
|
||||
It is always true that
|
||||
\code{string.join(string.split(\var{s}, \var{sep}), \var{sep})}
|
||||
\var{sep}. The default value for \var{sep} is a single space
|
||||
character. It is always true that
|
||||
\samp{string.join(string.split(\var{s}, \var{sep}), \var{sep})}
|
||||
equals \var{s}.
|
||||
\end{funcdesc}
|
||||
|
||||
\begin{funcdesc}{joinfields}{words\optional{\, sep}}
|
||||
This function behaves identical to \code{join}. (In the past,
|
||||
\code{join} was only used with one argument, while \code{joinfields}
|
||||
was only used with two arguments.)
|
||||
\begin{funcdesc}{joinfields}{words\optional{, sep}}
|
||||
This function behaves identical to \function{join()}. (In the past,
|
||||
\function{join()} was only used with one argument, while
|
||||
\function{joinfields()} was only used with two arguments.)
|
||||
\end{funcdesc}
|
||||
|
||||
\begin{funcdesc}{lstrip}{s}
|
||||
|
@ -198,19 +199,19 @@ Convert lower case letters to upper case and vice versa.
|
|||
\end{funcdesc}
|
||||
|
||||
\begin{funcdesc}{translate}{s, table\optional{, deletechars}}
|
||||
Delete all characters from \var{s} that are in \var{deletechars} (if present), and
|
||||
then translate the characters using \var{table}, which must be
|
||||
a 256-character string giving the translation for each character
|
||||
value, indexed by its ordinal.
|
||||
Delete all characters from \var{s} that are in \var{deletechars} (if
|
||||
present), and then translate the characters using \var{table}, which
|
||||
must be a 256-character string giving the translation for each
|
||||
character value, indexed by its ordinal.
|
||||
\end{funcdesc}
|
||||
|
||||
\begin{funcdesc}{upper}{s}
|
||||
Convert letters to upper case.
|
||||
\end{funcdesc}
|
||||
|
||||
\begin{funcdesc}{ljust}{s\, width}
|
||||
\funcline{rjust}{s\, width}
|
||||
\funcline{center}{s\, width}
|
||||
\begin{funcdesc}{ljust}{s, width}
|
||||
\funcline{rjust}{s, width}
|
||||
\funcline{center}{s, width}
|
||||
These functions respectively left-justify, right-justify and center a
|
||||
string in a field of given width.
|
||||
They return a string that is at least
|
||||
|
@ -221,7 +222,7 @@ with spaces until the given width on the right, left or both sides.
|
|||
The string is never truncated.
|
||||
\end{funcdesc}
|
||||
|
||||
\begin{funcdesc}{zfill}{s\, width}
|
||||
\begin{funcdesc}{zfill}{s, width}
|
||||
Pad a numeric string on the left with zero digits until the given
|
||||
width is reached. Strings starting with a sign are handled correctly.
|
||||
\end{funcdesc}
|
||||
|
@ -234,10 +235,10 @@ replaced.
|
|||
\end{funcdesc}
|
||||
|
||||
This module is implemented in Python. Much of its functionality has
|
||||
been reimplemented in the built-in module \code{strop}. However, you
|
||||
been reimplemented in the built-in module
|
||||
\module{strop}\refbimodindex{strop}. However, you
|
||||
should \emph{never} import the latter module directly. When
|
||||
\code{string} discovers that \code{strop} exists, it transparently
|
||||
replaces parts of itself with the implementation from \code{strop}.
|
||||
\module{string} discovers that \module{strop} exists, it transparently
|
||||
replaces parts of itself with the implementation from \module{strop}.
|
||||
After initialization, there is \emph{no} overhead in using
|
||||
\code{string} instead of \code{strop}.
|
||||
\refbimodindex{strop}
|
||||
\module{string} instead of \module{strop}.
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue