mirror of
https://github.com/fish-shell/fish-shell.git
synced 2024-11-23 01:36:39 +08:00
145 lines
4.8 KiB
C++
145 lines
4.8 KiB
C++
/** \file parse_util.h
|
|
|
|
Various mostly unrelated utility functions related to parsing,
|
|
loading and evaluating fish code.
|
|
*/
|
|
|
|
#ifndef FISH_PARSE_UTIL_H
|
|
#define FISH_PARSE_UTIL_H
|
|
|
|
#include "autoload.h"
|
|
#include <wchar.h>
|
|
#include <map>
|
|
#include <set>
|
|
|
|
/**
|
|
Find the beginning and end of the first subshell in the specified string.
|
|
|
|
\param in the string to search for subshells
|
|
\param begin the starting paranthesis of the subshell
|
|
\param end the ending paranthesis of the subshell
|
|
\param flags set this variable to ACCEPT_INCOMPLETE if in tab_completion mode
|
|
\return -1 on syntax error, 0 if no subshells exist and 1 on sucess
|
|
*/
|
|
|
|
int parse_util_locate_cmdsubst( const wchar_t *in,
|
|
wchar_t **begin,
|
|
wchar_t **end,
|
|
int flags );
|
|
|
|
/**
|
|
Find the beginning and end of the command substitution under the
|
|
cursor. If no subshell is found, the entire string is returned. If
|
|
the current command substitution is not ended, i.e. the closing
|
|
parenthesis is missing, then the string from the beginning of the
|
|
substitution to the end of the string is returned.
|
|
|
|
\param buff the string to search for subshells
|
|
\param cursor_pos the position of the cursor
|
|
\param a the start of the searched string
|
|
\param b the end of the searched string
|
|
*/
|
|
void parse_util_cmdsubst_extent( const wchar_t *buff,
|
|
size_t cursor_pos,
|
|
const wchar_t **a,
|
|
const wchar_t **b );
|
|
|
|
/**
|
|
Find the beginning and end of the process definition under the cursor
|
|
|
|
\param buff the string to search for subshells
|
|
\param cursor_pos the position of the cursor
|
|
\param a the start of the searched string
|
|
\param b the end of the searched string
|
|
*/
|
|
void parse_util_process_extent( const wchar_t *buff,
|
|
size_t cursor_pos,
|
|
const wchar_t **a,
|
|
const wchar_t **b );
|
|
|
|
|
|
/**
|
|
Find the beginning and end of the job definition under the cursor
|
|
|
|
\param buff the string to search for subshells
|
|
\param cursor_pos the position of the cursor
|
|
\param a the start of the searched string
|
|
\param b the end of the searched string
|
|
*/
|
|
void parse_util_job_extent( const wchar_t *buff,
|
|
size_t cursor_pos,
|
|
const wchar_t **a,
|
|
const wchar_t **b );
|
|
|
|
/**
|
|
Find the beginning and end of the token under the cursor and the
|
|
token before the current token. Any combination of tok_begin,
|
|
tok_end, prev_begin and prev_end may be null.
|
|
|
|
\param buff the string to search for subshells
|
|
\param cursor_pos the position of the cursor
|
|
\param tok_begin the start of the current token
|
|
\param tok_end the end of the current token
|
|
\param prev_begin the start o the token before the current token
|
|
\param prev_end the end of the token before the current token
|
|
*/
|
|
void parse_util_token_extent( const wchar_t *buff,
|
|
size_t cursor_pos,
|
|
const wchar_t **tok_begin,
|
|
const wchar_t **tok_end,
|
|
const wchar_t **prev_begin,
|
|
const wchar_t **prev_end );
|
|
|
|
|
|
/**
|
|
Get the linenumber at the specified character offset
|
|
*/
|
|
int parse_util_lineno( const wchar_t *str, size_t len );
|
|
|
|
/**
|
|
Calculate the line number of the specified cursor position
|
|
*/
|
|
int parse_util_get_line_from_offset( const wcstring &str, size_t pos );
|
|
|
|
/**
|
|
Get the offset of the first character on the specified line
|
|
*/
|
|
size_t parse_util_get_offset_from_line( const wcstring &str, int line );
|
|
|
|
|
|
/**
|
|
Return the total offset of the buffer for the cursor position nearest to the specified poition
|
|
*/
|
|
size_t parse_util_get_offset( const wcstring &str, int line, long line_offset );
|
|
|
|
/**
|
|
Set the argv environment variable to the specified null-terminated
|
|
array of strings.
|
|
*/
|
|
void parse_util_set_argv( const wchar_t * const *argv, const wcstring_list_t &named_arguments );
|
|
|
|
/**
|
|
Make a duplicate of the specified string, unescape wildcard
|
|
characters but not performing any other character transformation.
|
|
*/
|
|
wchar_t *parse_util_unescape_wildcards( const wchar_t *in );
|
|
|
|
/**
|
|
Calculates information on the parameter at the specified index.
|
|
|
|
\param cmd The command to be analyzed
|
|
\param pos An index in the string which is inside the parameter
|
|
\param quote If not NULL, store the type of quote this parameter has, can be either ', " or \\0, meaning the string is not quoted.
|
|
\param offset If not NULL, get_param will store the offset to the beginning of the parameter.
|
|
\param type If not NULL, get_param will store the token type as returned by tok_last.
|
|
*/
|
|
void parse_util_get_parameter_info( const wcstring &cmd, const size_t pos, wchar_t *quote, size_t *offset, int *type );
|
|
|
|
/**
|
|
Attempts to escape the string 'cmd' using the given quote type, as determined by the quote character. The quote can be a single quote or double quote, or L'\0' to indicate no quoting (and thus escaping should be with backslashes).
|
|
*/
|
|
wcstring parse_util_escape_string_with_quote( const wcstring &cmd, wchar_t quote);
|
|
|
|
|
|
#endif
|