mirror of
https://github.com/fish-shell/fish-shell.git
synced 2024-11-30 06:03:49 +08:00
2159 lines
44 KiB
C
2159 lines
44 KiB
C
/** \file complete.c Functions related to tab-completion.
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These functions are used for storing and retrieving tab-completion data, as well as for performing tab-completion.
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <limits.h>
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#include <string.h>
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#include <wchar.h>
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#include <wctype.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#include <errno.h>
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#include <termios.h>
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#include <ctype.h>
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#include <pwd.h>
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#include <signal.h>
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#include <wchar.h>
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#include "fallback.h"
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#include "util.h"
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#include "tokenizer.h"
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#include "wildcard.h"
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#include "proc.h"
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#include "parser.h"
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#include "function.h"
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#include "complete.h"
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#include "builtin.h"
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#include "env.h"
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#include "exec.h"
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#include "expand.h"
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#include "common.h"
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#include "reader.h"
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#include "history.h"
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#include "intern.h"
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#include "parse_util.h"
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#include "parser_keywords.h"
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#include "halloc.h"
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#include "halloc_util.h"
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#include "wutil.h"
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#include "path.h"
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/*
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Completion description strings, mostly for different types of files, such as sockets, block devices, etc.
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There are a few more completion description strings defined in
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expand.c. Maybe all completion description strings should be defined
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in the same file?
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*/
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/**
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Description for ~USER completion
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*/
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#define COMPLETE_USER_DESC _( L"Home for %ls" )
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/**
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Description for short variables. The value is concatenated to this description
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*/
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#define COMPLETE_VAR_DESC_VAL _( L"Variable: %ls" )
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/**
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The maximum number of commands on which to perform description
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lookup. The lookup process is quite time consuming, so this should
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be set to a pretty low number.
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*/
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#define MAX_CMD_DESC_LOOKUP 10
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/**
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Condition cache value returned from hashtable when this condition
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has not yet been tested. This value is NULL, so that when the hash
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table returns NULL, this wil be seen as an untested condition.
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*/
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#define CC_NOT_TESTED 0
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/**
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Condition cache value returned from hashtable when the condition is
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met. This can be any value, that is a valid pointer, and that is
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different from CC_NOT_TESTED and CC_FALSE.
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*/
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#define CC_TRUE L"true"
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/**
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Condition cache value returned from hashtable when the condition is
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not met. This can be any value, that is a valid pointer, and that
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is different from CC_NOT_TESTED and CC_TRUE.
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*/
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#define CC_FALSE L"false"
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/**
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The special cased translation macro for completions. The empty
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string needs to be special cased, since it can occur, and should
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not be translated. (Gettext returns the version information as the
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response)
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*/
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#ifdef USE_GETTEXT
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#define C_(wstr) ((wcscmp(wstr, L"")==0)?L"":wgettext(wstr))
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#else
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#define C_(string) (string)
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#endif
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/**
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The maximum amount of time that we're willing to spend doing
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username tilde completion. This special limit has been coded in
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because user lookup can be extremely slow in cases of a humongous
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LDAP database. (Google, I'm looking at you)
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*/
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#define MAX_USER_LOOKUP_TIME 0.2
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/**
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Struct describing a completion option entry.
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If short_opt and long_opt are both zero, the comp field must not be
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empty and contains a list of arguments to the command.
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If either short_opt or long_opt are non-zero, they specify a switch
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for the command. If \c comp is also not empty, it contains a list
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of non-switch arguments that may only follow directly after the
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specified switch.
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*/
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typedef struct complete_entry_opt
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{
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/** Short style option */
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wchar_t short_opt;
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/** Long style option */
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const wchar_t *long_opt;
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/** Arguments to the option */
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const wchar_t *comp;
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/** Description of the completion */
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const wchar_t *desc;
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/** Condition under which to use the option */
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const wchar_t *condition;
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/** Must be one of the values SHARED, NO_FILES, NO_COMMON,
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EXCLUSIVE, and determines how completions should be performed
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on the argument after the switch. */
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int result_mode;
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/** True if old style long options are used */
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int old_mode;
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/** Next option in the linked list */
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struct complete_entry_opt *next;
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/** Completion flags */
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int flags;
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}
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complete_entry_opt_t;
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/**
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Struct describing a command completion
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*/
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typedef struct complete_entry
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{
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/** True if command is a path */
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int cmd_type;
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/** Command string */
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const wchar_t *cmd;
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/** String containing all short option characters */
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wchar_t *short_opt_str;
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/** Linked list of all options */
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complete_entry_opt_t *first_option;
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/** Next command completion in the linked list */
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struct complete_entry *next;
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/** True if no other options than the ones supplied are possible */
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int authoritative;
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}
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complete_entry_t;
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/** First node in the linked list of all completion entries */
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static complete_entry_t *first_entry=0;
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/**
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Table of completions conditions that have already been tested and
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the corresponding test results
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*/
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static hash_table_t *condition_cache=0;
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static void complete_free_entry( complete_entry_t *c );
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/**
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Create a new completion entry
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*/
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void completion_allocate( array_list_t *context,
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const wchar_t *comp,
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const wchar_t *desc,
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int flags )
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{
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completion_t *res = halloc( context, sizeof( completion_t) );
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res->completion = halloc_wcsdup( context, comp );
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if( desc )
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res->description = halloc_wcsdup( context, desc );
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if( flags & COMPLETE_AUTO_SPACE )
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{
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int len = wcslen(comp);
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flags = flags & (~COMPLETE_AUTO_SPACE);
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if( ( len > 0 ) && ( wcschr( L"/=@:", comp[ len - 1 ] ) != 0 ) )
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flags |= COMPLETE_NO_SPACE;
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}
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res->flags = flags;
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al_push( context, res );
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}
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/**
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Destroys various structures used for tab-completion and free()s the memory used by them.
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*/
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static void complete_destroy()
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{
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complete_entry_t *i=first_entry, *prev;
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while( i )
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{
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prev = i;
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i=i->next;
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complete_free_entry( prev );
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}
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first_entry = 0;
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parse_util_load_reset( L"fish_complete_path", 0 );
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}
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/**
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The init function for the completion code. Currently, all it really
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does is make sure complete_destroy is called on exit.
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*/
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static void complete_init()
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{
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static int is_init = 0;
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if( !is_init )
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{
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is_init = 1;
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halloc_register_function_void( global_context, &complete_destroy );
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}
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}
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/**
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This command clears the cache of condition tests created by \c condition_test().
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*/
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static void condition_cache_clear()
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{
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if( condition_cache )
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{
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hash_destroy( condition_cache );
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free( condition_cache );
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condition_cache = 0;
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}
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}
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/**
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Test if the specified script returns zero. The result is cached, so
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that if multiple completions use the same condition, it needs only
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be evaluated once. condition_cache_clear must be called after a
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completion run to make sure that there are no stale completions.
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*/
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static int condition_test( const wchar_t *condition )
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{
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const void *test_res;
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if( !condition || !wcslen(condition) )
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{
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// fwprintf( stderr, L"No condition specified\n" );
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return 1;
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}
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if( !condition_cache )
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{
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condition_cache = malloc( sizeof( hash_table_t ) );
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if( !condition_cache )
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{
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DIE_MEM();
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}
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hash_init( condition_cache,
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&hash_wcs_func,
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&hash_wcs_cmp );
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}
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test_res = hash_get( condition_cache, condition );
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if (test_res == CC_NOT_TESTED )
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{
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test_res = exec_subshell( condition, 0 )?CC_FALSE:CC_TRUE;
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hash_put( condition_cache, condition, test_res );
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/*
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Restore previous status information
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*/
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}
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if( wcscmp( test_res, CC_TRUE ) == 0 )
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{
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return 1;
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}
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return 0;
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}
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/**
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Recursively free all complete_entry_opt_t structs and their contents
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*/
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static void complete_free_opt_recursive( complete_entry_opt_t *o )
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{
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if( !o )
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return;
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complete_free_opt_recursive( o->next );
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halloc_free( o );
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}
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/**
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Free a complete_entry_t and its contents
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*/
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static void complete_free_entry( complete_entry_t *c )
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{
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// free( c->cmd );
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free( c->short_opt_str );
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complete_free_opt_recursive( c->first_option );
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free( c );
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}
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/**
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Search for an exactly matching completion entry
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*/
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static complete_entry_t *complete_find_exact_entry( const wchar_t *cmd,
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const int cmd_type )
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{
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complete_entry_t *i;
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for( i=first_entry; i; i=i->next )
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{
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if( ( wcscmp(cmd, i->cmd)==0) && ( cmd_type == i->cmd_type ))
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{
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return i;
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}
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}
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return 0;
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}
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/**
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Locate the specified entry. Create it if it doesn't exist.
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*/
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static complete_entry_t *complete_get_exact_entry( const wchar_t *cmd,
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int cmd_type )
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{
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complete_entry_t *c;
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complete_init();
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c = complete_find_exact_entry( cmd, cmd_type );
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if( c == 0 )
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{
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if( !(c = malloc( sizeof(complete_entry_t) )))
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{
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DIE_MEM();
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}
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c->next = first_entry;
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first_entry = c;
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c->first_option = 0;
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c->cmd = intern( cmd );
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c->cmd_type = cmd_type;
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c->short_opt_str = wcsdup(L"");
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c->authoritative = 1;
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}
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return c;
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}
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void complete_set_authoritative( const wchar_t *cmd,
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int cmd_type,
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int authoritative )
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{
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complete_entry_t *c;
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CHECK( cmd, );
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c = complete_get_exact_entry( cmd, cmd_type );
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c->authoritative = authoritative;
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}
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void complete_add( const wchar_t *cmd,
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int cmd_type,
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wchar_t short_opt,
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const wchar_t *long_opt,
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int old_mode,
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int result_mode,
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const wchar_t *condition,
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const wchar_t *comp,
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const wchar_t *desc,
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int flags )
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{
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complete_entry_t *c;
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complete_entry_opt_t *opt;
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CHECK( cmd, );
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c = complete_get_exact_entry( cmd, cmd_type );
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opt = halloc( 0, sizeof( complete_entry_opt_t ) );
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opt->next = c->first_option;
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c->first_option = opt;
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if( short_opt != L'\0' )
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{
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int len = 1 + ((result_mode & NO_COMMON) != 0);
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c->short_opt_str =
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realloc( c->short_opt_str,
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sizeof(wchar_t)*(wcslen( c->short_opt_str ) + 1 + len) );
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wcsncat( c->short_opt_str,
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&short_opt, 1 );
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if( len == 2 )
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{
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wcscat( c->short_opt_str, L":" );
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}
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}
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opt->short_opt = short_opt;
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opt->result_mode = result_mode;
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opt->old_mode=old_mode;
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opt->comp = comp?halloc_wcsdup(opt, comp):L"";
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opt->condition = condition?halloc_wcsdup(opt, condition):L"";
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opt->long_opt = long_opt?halloc_wcsdup(opt, long_opt):L"" ;
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opt->flags = flags;
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if( desc && wcslen( desc ) )
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{
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opt->desc = halloc_wcsdup( opt, desc );
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}
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else
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{
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opt->desc = L"";
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}
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}
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/**
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Remove all completion options in the specified entry that match the
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specified short / long option strings.
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*/
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static complete_entry_t *complete_remove_entry( complete_entry_t *e,
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wchar_t short_opt,
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const wchar_t *long_opt )
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{
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complete_entry_opt_t *o, *oprev=0, *onext=0;
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if(( short_opt == 0 ) && (long_opt == 0 ) )
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{
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complete_free_opt_recursive( e->first_option );
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e->first_option=0;
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}
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else
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{
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for( o= e->first_option; o; o=onext )
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{
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onext=o->next;
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if( ( short_opt==o->short_opt ) ||
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( wcscmp( long_opt, o->long_opt ) == 0 ) )
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{
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wchar_t *pos;
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/* fwprintf( stderr,
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L"remove option -%lc --%ls\n",
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o->short_opt?o->short_opt:L' ',
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o->long_opt );
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*/
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if( o->short_opt )
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{
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pos = wcschr( e->short_opt_str,
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o->short_opt );
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if( pos )
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{
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wchar_t *pos2 = pos+1;
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while( *pos2 == L':' )
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{
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pos2++;
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}
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memmove( pos,
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pos2,
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sizeof(wchar_t)*wcslen(pos2) );
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}
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}
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if( oprev == 0 )
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{
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e->first_option = o->next;
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}
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else
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{
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oprev->next = o->next;
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}
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free( o );
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}
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else
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{
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oprev = o;
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}
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}
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}
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if( e && (e->first_option == 0) )
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{
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free( e->short_opt_str );
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free( e );
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e=0;
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}
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return e;
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}
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void complete_remove( const wchar_t *cmd,
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int cmd_type,
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wchar_t short_opt,
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const wchar_t *long_opt )
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{
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complete_entry_t *e, *eprev=0, *enext=0;
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CHECK( cmd, );
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for( e = first_entry; e; e=enext )
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{
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enext=e->next;
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if( (cmd_type == e->cmd_type ) &&
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( wcscmp( cmd, e->cmd) == 0 ) )
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{
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e = complete_remove_entry( e, short_opt, long_opt );
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}
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if( e )
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{
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eprev = e;
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}
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else
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{
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if( eprev )
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{
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eprev->next = enext;
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}
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else
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{
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first_entry = enext;
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}
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}
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}
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}
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/**
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Find the full path and commandname from a command string. Both
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pointers are allocated using halloc and will be free'd when\c
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context is halloc_free'd.
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*/
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static void parse_cmd_string( void *context,
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const wchar_t *str,
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wchar_t **pathp,
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wchar_t **cmdp )
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{
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wchar_t *cmd, *path;
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/* Get the path of the command */
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path = path_get_path( context, str );
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if( path == 0 )
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{
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/**
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Use the empty string as the 'path' for commands that can
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not be found.
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*/
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path = halloc_wcsdup( context, L"");
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}
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|
|
/* Make sure the path is not included in the command */
|
|
cmd = wcsrchr( str, L'/' );
|
|
if( cmd != 0 )
|
|
{
|
|
cmd++;
|
|
}
|
|
else
|
|
{
|
|
cmd = (wchar_t *)str;
|
|
}
|
|
|
|
*pathp=path;
|
|
*cmdp=cmd;
|
|
}
|
|
|
|
int complete_is_valid_option( const wchar_t *str,
|
|
const wchar_t *opt,
|
|
array_list_t *errors )
|
|
{
|
|
complete_entry_t *i;
|
|
complete_entry_opt_t *o;
|
|
wchar_t *cmd, *path;
|
|
int found_match = 0;
|
|
int authoritative = 1;
|
|
int opt_found=0;
|
|
hash_table_t gnu_match_hash;
|
|
int is_gnu_opt=0;
|
|
int is_old_opt=0;
|
|
int is_short_opt=0;
|
|
int is_gnu_exact=0;
|
|
int gnu_opt_len=0;
|
|
char *short_validated;
|
|
|
|
void *context;
|
|
|
|
CHECK( str, 0 );
|
|
CHECK( opt, 0 );
|
|
|
|
/*
|
|
Check some generic things like -- and - options.
|
|
*/
|
|
switch( wcslen(opt ) )
|
|
{
|
|
|
|
case 0:
|
|
case 1:
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
case 2:
|
|
{
|
|
if( wcscmp( L"--", opt ) == 0 )
|
|
{
|
|
return 1;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
if( opt[0] != L'-' )
|
|
{
|
|
if( errors )
|
|
{
|
|
al_push( errors, wcsdup(L"Option does not begin with a '-'") );
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
context = halloc( 0, 0 );
|
|
|
|
if( !(short_validated = halloc( context, wcslen( opt ) )))
|
|
{
|
|
DIE_MEM();
|
|
}
|
|
|
|
|
|
|
|
memset( short_validated, 0, wcslen( opt ) );
|
|
|
|
hash_init( &gnu_match_hash,
|
|
&hash_wcs_func,
|
|
&hash_wcs_cmp );
|
|
|
|
is_gnu_opt = opt[1]==L'-';
|
|
if( is_gnu_opt )
|
|
{
|
|
wchar_t *opt_end = wcschr(opt, L'=' );
|
|
if( opt_end )
|
|
{
|
|
gnu_opt_len = (opt_end-opt)-2;
|
|
}
|
|
else
|
|
{
|
|
gnu_opt_len = wcslen(opt)-2;
|
|
}
|
|
}
|
|
|
|
parse_cmd_string( context, str, &path, &cmd );
|
|
|
|
/*
|
|
Make sure completions are loaded for the specified command
|
|
*/
|
|
complete_load( cmd, 0 );
|
|
|
|
for( i=first_entry; i; i=i->next )
|
|
{
|
|
wchar_t *match = i->cmd_type?path:cmd;
|
|
const wchar_t *a;
|
|
|
|
if( !wildcard_match( match, i->cmd ) )
|
|
{
|
|
continue;
|
|
}
|
|
|
|
found_match = 1;
|
|
|
|
if( !i->authoritative )
|
|
{
|
|
authoritative = 0;
|
|
break;
|
|
}
|
|
|
|
|
|
if( is_gnu_opt )
|
|
{
|
|
|
|
for( o = i->first_option; o; o=o->next )
|
|
{
|
|
if( o->old_mode )
|
|
{
|
|
continue;
|
|
}
|
|
|
|
if( wcsncmp( &opt[2], o->long_opt, gnu_opt_len )==0)
|
|
{
|
|
hash_put( &gnu_match_hash, o->long_opt, L"" );
|
|
if( (wcsncmp( &opt[2],
|
|
o->long_opt,
|
|
wcslen( o->long_opt) )==0) )
|
|
{
|
|
is_gnu_exact=1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Check for old style options */
|
|
for( o = i->first_option; o; o=o->next )
|
|
{
|
|
if( !o->old_mode )
|
|
continue;
|
|
|
|
|
|
if( wcscmp( &opt[1], o->long_opt )==0)
|
|
{
|
|
opt_found = 1;
|
|
is_old_opt = 1;
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
if( is_old_opt )
|
|
break;
|
|
|
|
|
|
for( a = &opt[1]; *a; a++ )
|
|
{
|
|
|
|
wchar_t *str_pos = wcschr(i->short_opt_str, *a);
|
|
|
|
if (str_pos )
|
|
{
|
|
if( *(str_pos +1)==L':' )
|
|
{
|
|
/*
|
|
This is a short option with an embedded argument,
|
|
call complete_is_valid_argument on the argument.
|
|
*/
|
|
wchar_t nopt[3];
|
|
nopt[0]=L'-';
|
|
nopt[1]=opt[1];
|
|
nopt[2]=L'\0';
|
|
|
|
short_validated[a-opt] =
|
|
complete_is_valid_argument( str, nopt, &opt[2]);
|
|
}
|
|
else
|
|
{
|
|
short_validated[a-opt]=1;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if( authoritative )
|
|
{
|
|
|
|
if( !is_gnu_opt && !is_old_opt )
|
|
is_short_opt = 1;
|
|
|
|
|
|
if( is_short_opt )
|
|
{
|
|
int j;
|
|
|
|
opt_found=1;
|
|
for( j=1; j<wcslen(opt); j++)
|
|
{
|
|
if ( !short_validated[j])
|
|
{
|
|
if( errors )
|
|
{
|
|
wchar_t str[2];
|
|
str[0] = opt[j];
|
|
str[1]=0;
|
|
al_push( errors,
|
|
wcsdupcat(_( L"Unknown option: " ), L"'", str, L"'" ) );
|
|
}
|
|
|
|
opt_found = 0;
|
|
break;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
if( is_gnu_opt )
|
|
{
|
|
opt_found = is_gnu_exact || (hash_get_count( &gnu_match_hash )==1);
|
|
if( errors && !opt_found )
|
|
{
|
|
if( hash_get_count( &gnu_match_hash )==0)
|
|
{
|
|
al_push( errors,
|
|
wcsdupcat( _(L"Unknown option: "), L"'", opt, L"\'" ) );
|
|
}
|
|
else
|
|
{
|
|
al_push( errors,
|
|
wcsdupcat( _(L"Multiple matches for option: "), L"'", opt, L"\'" ) );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
hash_destroy( &gnu_match_hash );
|
|
|
|
halloc_free( context );
|
|
|
|
return (authoritative && found_match)?opt_found:1;
|
|
}
|
|
|
|
int complete_is_valid_argument( const wchar_t *str,
|
|
const wchar_t *opt,
|
|
const wchar_t *arg )
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
|
|
/**
|
|
Copy any strings in possible_comp which have the specified prefix
|
|
to the list comp_out. The prefix may contain wildcards. The output
|
|
will consist of completion_t structs.
|
|
|
|
There are three ways to specify descriptions for each
|
|
completion. Firstly, if a description has already been added to the
|
|
completion, it is _not_ replaced. Secondly, if the desc_func
|
|
function is specified, use it to determine a dynamic
|
|
completion. Thirdly, if none of the above are available, the desc
|
|
string is used as a description.
|
|
|
|
\param comp_out the destination list
|
|
\param wc_escaped the prefix, possibly containing wildcards. The wildcard should not have been unescaped, i.e. '*' should be used for any string, not the ANY_STRING character.
|
|
\param desc the default description, used for completions with no embedded description. The description _may_ contain a COMPLETE_SEP character, if not, one will be prefixed to it
|
|
\param desc_func the function that generates a description for those completions witout an embedded description
|
|
\param possible_comp the list of possible completions to iterate over
|
|
*/
|
|
|
|
static void complete_strings( array_list_t *comp_out,
|
|
const wchar_t *wc_escaped,
|
|
const wchar_t *desc,
|
|
const wchar_t *(*desc_func)(const wchar_t *),
|
|
array_list_t *possible_comp,
|
|
int flags )
|
|
{
|
|
int i;
|
|
wchar_t *wc, *tmp;
|
|
|
|
tmp = expand_one( 0,
|
|
wcsdup(wc_escaped), EXPAND_SKIP_CMDSUBST | EXPAND_SKIP_WILDCARDS);
|
|
if(!tmp)
|
|
return;
|
|
|
|
wc = parse_util_unescape_wildcards( tmp );
|
|
free(tmp);
|
|
|
|
for( i=0; i<al_get_count( possible_comp ); i++ )
|
|
{
|
|
wchar_t *next_str = (wchar_t *)al_get( possible_comp, i );
|
|
|
|
if( next_str )
|
|
{
|
|
wildcard_complete( next_str, wc, desc, desc_func, comp_out, flags );
|
|
}
|
|
}
|
|
|
|
free( wc );
|
|
}
|
|
|
|
/**
|
|
If command to complete is short enough, substitute
|
|
the description with the whatis information for the executable.
|
|
*/
|
|
static void complete_cmd_desc( const wchar_t *cmd, array_list_t *comp )
|
|
{
|
|
int i;
|
|
const wchar_t *cmd_start;
|
|
int cmd_len;
|
|
wchar_t *lookup_cmd=0;
|
|
array_list_t list;
|
|
hash_table_t lookup;
|
|
wchar_t *esc;
|
|
int skip;
|
|
|
|
if( !cmd )
|
|
return;
|
|
|
|
cmd_start=wcsrchr(cmd, L'/');
|
|
|
|
if( cmd_start )
|
|
cmd_start++;
|
|
else
|
|
cmd_start = cmd;
|
|
|
|
cmd_len = wcslen(cmd_start);
|
|
|
|
/*
|
|
Using apropos with a single-character search term produces far
|
|
to many results - require at least two characters if we don't
|
|
know the location of the whatis-database.
|
|
*/
|
|
if(cmd_len < 2 )
|
|
return;
|
|
|
|
if( wildcard_has( cmd_start, 0 ) )
|
|
{
|
|
return;
|
|
}
|
|
|
|
skip = 1;
|
|
|
|
for( i=0; i<al_get_count( comp ); i++ )
|
|
{
|
|
completion_t *c = (completion_t *)al_get( comp, i );
|
|
|
|
if( !wcslen( c->completion) || (c->completion[wcslen(c->completion)-1] != L'/' ))
|
|
{
|
|
skip = 0;
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
if( skip )
|
|
{
|
|
return;
|
|
}
|
|
|
|
|
|
esc = escape( cmd_start, 1 );
|
|
|
|
lookup_cmd = wcsdupcat( L"__fish_describe_command ", esc );
|
|
free(esc);
|
|
|
|
al_init( &list );
|
|
hash_init( &lookup, &hash_wcs_func, &hash_wcs_cmp );
|
|
|
|
|
|
/*
|
|
First locate a list of possible descriptions using a single
|
|
call to apropos or a direct search if we know the location
|
|
of the whatis database. This can take some time on slower
|
|
systems with a large set of manuals, but it should be ok
|
|
since apropos is only called once.
|
|
*/
|
|
if( exec_subshell( lookup_cmd, &list ) != -1 )
|
|
{
|
|
|
|
/*
|
|
Then discard anything that is not a possible completion and put
|
|
the result into a hashtable with the completion as key and the
|
|
description as value.
|
|
|
|
Should be reasonably fast, since no memory allocations are needed.
|
|
*/
|
|
for( i=0; i<al_get_count( &list); i++ )
|
|
{
|
|
wchar_t *el = (wchar_t *)al_get( &list, i );
|
|
wchar_t *key, *key_end, *val_begin;
|
|
|
|
if( !el )
|
|
continue;
|
|
|
|
key = el+wcslen(cmd_start);
|
|
key_end = wcschr( key, L'\t' );
|
|
|
|
if( !key_end )
|
|
continue;
|
|
|
|
*key_end = 0;
|
|
val_begin = key_end+1;
|
|
|
|
/*
|
|
And once again I make sure the first character is uppercased
|
|
because I like it that way, and I get to decide these
|
|
things.
|
|
*/
|
|
val_begin[0]=towupper(val_begin[0]);
|
|
|
|
hash_put( &lookup, key, val_begin );
|
|
}
|
|
|
|
/*
|
|
Then do a lookup on every completion and if a match is found,
|
|
change to the new description.
|
|
|
|
This needs to do a reallocation for every description added, but
|
|
there shouldn't be that many completions, so it should be ok.
|
|
*/
|
|
for( i=0; i<al_get_count(comp); i++ )
|
|
{
|
|
completion_t *c = (completion_t *)al_get( comp, i );
|
|
const wchar_t *el = c->completion;
|
|
|
|
wchar_t *new_desc;
|
|
|
|
new_desc = (wchar_t *)hash_get( &lookup,
|
|
el );
|
|
|
|
if( new_desc )
|
|
{
|
|
c->description = halloc_wcsdup( comp, new_desc );
|
|
}
|
|
}
|
|
}
|
|
|
|
hash_destroy( &lookup );
|
|
al_foreach( &list,
|
|
&free );
|
|
al_destroy( &list );
|
|
free( lookup_cmd );
|
|
}
|
|
|
|
/**
|
|
Returns a description for the specified function
|
|
*/
|
|
static const wchar_t *complete_function_desc( const wchar_t *fn )
|
|
{
|
|
const wchar_t *res = function_get_desc( fn );
|
|
|
|
if( !res )
|
|
res = function_get_definition( fn );
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
/**
|
|
Complete the specified command name. Search for executables in the
|
|
path, executables defined using an absolute path, functions,
|
|
builtins and directories for implicit cd commands.
|
|
|
|
\param cmd the command string to find completions for
|
|
|
|
\param comp the list to add all completions to
|
|
*/
|
|
static void complete_cmd( const wchar_t *cmd,
|
|
array_list_t *comp,
|
|
int use_function,
|
|
int use_builtin,
|
|
int use_command )
|
|
{
|
|
wchar_t *path;
|
|
wchar_t *path_cpy;
|
|
wchar_t *nxt_path;
|
|
wchar_t *state;
|
|
array_list_t possible_comp;
|
|
wchar_t *nxt_completion;
|
|
|
|
wchar_t *cdpath = env_get(L"CDPATH");
|
|
wchar_t *cdpath_cpy = wcsdup( cdpath?cdpath:L"." );
|
|
|
|
if( (wcschr( cmd, L'/') != 0) || (cmd[0] == L'~' ) )
|
|
{
|
|
|
|
if( use_command )
|
|
{
|
|
|
|
if( expand_string( 0,
|
|
wcsdup(cmd),
|
|
comp,
|
|
ACCEPT_INCOMPLETE | EXECUTABLES_ONLY ) != EXPAND_ERROR )
|
|
{
|
|
complete_cmd_desc( cmd, comp );
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if( use_command )
|
|
{
|
|
|
|
path = env_get(L"PATH");
|
|
if( path )
|
|
{
|
|
|
|
path_cpy = wcsdup( path );
|
|
|
|
for( nxt_path = wcstok( path_cpy, ARRAY_SEP_STR, &state );
|
|
nxt_path != 0;
|
|
nxt_path = wcstok( 0, ARRAY_SEP_STR, &state) )
|
|
{
|
|
int prev_count;
|
|
int i;
|
|
int path_len = wcslen(nxt_path);
|
|
int add_slash;
|
|
|
|
if( !path_len )
|
|
{
|
|
continue;
|
|
}
|
|
|
|
add_slash = nxt_path[path_len-1]!=L'/';
|
|
nxt_completion = wcsdupcat( nxt_path,
|
|
add_slash?L"/":L"",
|
|
cmd );
|
|
if( ! nxt_completion )
|
|
continue;
|
|
|
|
prev_count = al_get_count( comp );
|
|
|
|
if( expand_string( 0,
|
|
nxt_completion,
|
|
comp,
|
|
ACCEPT_INCOMPLETE |
|
|
EXECUTABLES_ONLY ) != EXPAND_ERROR )
|
|
{
|
|
for( i=prev_count; i<al_get_count( comp ); i++ )
|
|
{
|
|
completion_t *c = (completion_t *)al_get( comp, i );
|
|
if(c->flags & COMPLETE_NO_CASE )
|
|
{
|
|
c->completion = halloc_wcsdup( comp, c->completion + path_len + add_slash );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
free( path_cpy );
|
|
complete_cmd_desc( cmd, comp );
|
|
}
|
|
}
|
|
|
|
/*
|
|
These return the original strings - don't free them
|
|
*/
|
|
|
|
al_init( &possible_comp );
|
|
|
|
if( use_function )
|
|
{
|
|
function_get_names( &possible_comp, cmd[0] == L'_' );
|
|
complete_strings( comp, cmd, 0, &complete_function_desc, &possible_comp, 0 );
|
|
}
|
|
|
|
al_truncate( &possible_comp, 0 );
|
|
|
|
if( use_builtin )
|
|
{
|
|
builtin_get_names( &possible_comp );
|
|
complete_strings( comp, cmd, 0, &builtin_get_desc, &possible_comp, 0 );
|
|
}
|
|
al_destroy( &possible_comp );
|
|
|
|
}
|
|
|
|
if( use_builtin || (use_function && function_exists( L"cd") ) )
|
|
{
|
|
/*
|
|
Tab complete implicit cd for directories in CDPATH
|
|
*/
|
|
if( cmd[0] != L'/' && ( wcsncmp( cmd, L"./", 2 )!=0) )
|
|
{
|
|
for( nxt_path = wcstok( cdpath_cpy, ARRAY_SEP_STR, &state );
|
|
nxt_path != 0;
|
|
nxt_path = wcstok( 0, ARRAY_SEP_STR, &state) )
|
|
{
|
|
wchar_t *nxt_completion=
|
|
wcsdupcat( nxt_path,
|
|
(nxt_path[wcslen(nxt_path)-1]==L'/'?L"":L"/"),
|
|
cmd );
|
|
if( ! nxt_completion )
|
|
{
|
|
continue;
|
|
}
|
|
|
|
if( expand_string( 0,
|
|
nxt_completion,
|
|
comp,
|
|
ACCEPT_INCOMPLETE | DIRECTORIES_ONLY ) != EXPAND_ERROR )
|
|
{
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
free( cdpath_cpy );
|
|
}
|
|
|
|
/**
|
|
Evaluate the argument list (as supplied by complete -a) and insert
|
|
any return matching completions. Matching is done using \c
|
|
copy_strings_with_prefix, meaning the completion may contain
|
|
wildcards. Logically, this is not always the right thing to do, but
|
|
I have yet to come up with a case where this matters.
|
|
|
|
\param str The string to complete.
|
|
\param args The list of option arguments to be evaluated.
|
|
\param desc Description of the completion
|
|
\param comp_out The list into which the results will be inserted
|
|
*/
|
|
static void complete_from_args( const wchar_t *str,
|
|
const wchar_t *args,
|
|
const wchar_t *desc,
|
|
array_list_t *comp_out,
|
|
int flags )
|
|
{
|
|
|
|
array_list_t possible_comp;
|
|
|
|
al_init( &possible_comp );
|
|
|
|
proc_push_interactive(0);
|
|
eval_args( args, &possible_comp );
|
|
proc_pop_interactive();
|
|
|
|
complete_strings( comp_out, str, desc, 0, &possible_comp, flags );
|
|
|
|
al_foreach( &possible_comp, &free );
|
|
al_destroy( &possible_comp );
|
|
}
|
|
|
|
/**
|
|
Match against an old style long option
|
|
*/
|
|
static int param_match_old( complete_entry_opt_t *e,
|
|
const wchar_t *optstr )
|
|
{
|
|
return (optstr[0] == L'-') && (wcscmp( e->long_opt, &optstr[1] ) == 0);
|
|
}
|
|
|
|
/**
|
|
Match a parameter
|
|
*/
|
|
static int param_match( const complete_entry_opt_t *e,
|
|
const wchar_t *optstr )
|
|
{
|
|
if( e->short_opt != L'\0' &&
|
|
e->short_opt == optstr[1] )
|
|
return 1;
|
|
|
|
if( !e->old_mode && (wcsncmp( L"--", optstr, 2 ) == 0 ))
|
|
{
|
|
if( wcscmp( e->long_opt, &optstr[2] ) == 0 )
|
|
{
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
Test if a string is an option with an argument, like --color=auto or -I/usr/include
|
|
*/
|
|
static wchar_t *param_match2( const complete_entry_opt_t *e,
|
|
const wchar_t *optstr )
|
|
{
|
|
if( e->short_opt != L'\0' && e->short_opt == optstr[1] )
|
|
return (wchar_t *)&optstr[2];
|
|
if( !e->old_mode && (wcsncmp( L"--", optstr, 2 ) == 0) )
|
|
{
|
|
int len = wcslen( e->long_opt );
|
|
|
|
if( wcsncmp( e->long_opt, &optstr[2],len ) == 0 )
|
|
{
|
|
if( optstr[len+2] == L'=' )
|
|
return (wchar_t *)&optstr[len+3];
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
Tests whether a short option is a viable completion
|
|
*/
|
|
static int short_ok( const wchar_t *arg,
|
|
wchar_t nextopt,
|
|
const wchar_t *allopt )
|
|
{
|
|
const wchar_t *ptr;
|
|
|
|
if( arg[0] != L'-')
|
|
return arg[0] == L'\0';
|
|
if( arg[1] == L'-' )
|
|
return 0;
|
|
|
|
if( wcschr( arg, nextopt ) != 0 )
|
|
return 0;
|
|
|
|
for( ptr = arg+1; *ptr; ptr++ )
|
|
{
|
|
wchar_t *tmp = wcschr( allopt, *ptr );
|
|
/* Unknown option */
|
|
if( tmp == 0 )
|
|
{
|
|
/*fwprintf( stderr, L"Unknown option %lc", *ptr );*/
|
|
|
|
return 0;
|
|
}
|
|
|
|
if( *(tmp+1) == L':' )
|
|
{
|
|
/* fwprintf( stderr, L"Woot %ls", allopt );*/
|
|
return 0;
|
|
}
|
|
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
/**
|
|
This is an event handler triggered when the definition of a
|
|
specifiec function is changed. It automatcally removes the
|
|
specified function.
|
|
|
|
This is to make sure that the function disappears if the file is
|
|
removed or if ti contains a syntax error.
|
|
*/
|
|
static void complete_load_handler( const wchar_t *cmd )
|
|
{
|
|
complete_remove( cmd, COMMAND, 0, 0 );
|
|
}
|
|
|
|
void complete_load( const wchar_t *name, int reload )
|
|
{
|
|
CHECK( name, );
|
|
parse_util_load( name,
|
|
L"fish_complete_path",
|
|
&complete_load_handler,
|
|
reload );
|
|
}
|
|
|
|
/**
|
|
Find completion for the argument str of command cmd_orig with
|
|
previous option popt. Insert results into comp_out. Return 0 if file
|
|
completion should be disabled, 1 otherwise.
|
|
*/
|
|
static int complete_param( const wchar_t *cmd_orig,
|
|
const wchar_t *popt,
|
|
const wchar_t *str,
|
|
int use_switches,
|
|
array_list_t *comp_out )
|
|
{
|
|
complete_entry_t *i;
|
|
complete_entry_opt_t *o;
|
|
|
|
array_list_t matches;
|
|
wchar_t *cmd, *path;
|
|
int use_common=1, use_files=1;
|
|
|
|
void *context = halloc( 0, 0 );
|
|
|
|
parse_cmd_string( context, cmd_orig, &path, &cmd );
|
|
|
|
complete_load( cmd, 1 );
|
|
|
|
al_init( &matches );
|
|
|
|
for( i=first_entry; i; i=i->next )
|
|
{
|
|
wchar_t *match = i->cmd_type?path:cmd;
|
|
|
|
if( ( (!wildcard_match( match, i->cmd ) ) ) )
|
|
{
|
|
continue;
|
|
}
|
|
|
|
use_common=1;
|
|
if( use_switches )
|
|
{
|
|
|
|
if( str[0] == L'-' )
|
|
{
|
|
/* Check if we are entering a combined option and argument
|
|
(like --color=auto or -I/usr/include) */
|
|
for( o = i->first_option; o; o=o->next )
|
|
{
|
|
wchar_t *arg;
|
|
if( (arg=param_match2( o, str ))!=0 && condition_test( o->condition ))
|
|
{
|
|
use_common &= ((o->result_mode & NO_COMMON )==0);
|
|
use_files &= ((o->result_mode & NO_FILES )==0);
|
|
complete_from_args( arg, o->comp, C_(o->desc), comp_out, o->flags );
|
|
}
|
|
|
|
}
|
|
}
|
|
else if( popt[0] == L'-' )
|
|
{
|
|
/* Set to true if we found a matching old-style switch */
|
|
int old_style_match = 0;
|
|
|
|
/*
|
|
If we are using old style long options, check for them
|
|
first
|
|
*/
|
|
for( o = i->first_option; o; o=o->next )
|
|
{
|
|
if( o->old_mode )
|
|
{
|
|
if( param_match_old( o, popt ) && condition_test( o->condition ))
|
|
{
|
|
old_style_match = 1;
|
|
use_common &= ((o->result_mode & NO_COMMON )==0);
|
|
use_files &= ((o->result_mode & NO_FILES )==0);
|
|
complete_from_args( str, o->comp, C_(o->desc), comp_out, o->flags );
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
No old style option matched, or we are not using old
|
|
style options. We check if any short (or gnu style
|
|
options do.
|
|
*/
|
|
if( !old_style_match )
|
|
{
|
|
for( o = i->first_option; o; o=o->next )
|
|
{
|
|
/*
|
|
Gnu-style options with _optional_ arguments must
|
|
be specified as a single token, so that it can
|
|
be differed from a regular argument.
|
|
*/
|
|
if( !o->old_mode && wcslen(o->long_opt) && !(o->result_mode & NO_COMMON) )
|
|
continue;
|
|
|
|
if( param_match( o, popt ) && condition_test( o->condition ))
|
|
{
|
|
use_common &= ((o->result_mode & NO_COMMON )==0);
|
|
use_files &= ((o->result_mode & NO_FILES )==0);
|
|
complete_from_args( str, o->comp, C_(o->desc), comp_out, o->flags );
|
|
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if( use_common )
|
|
{
|
|
|
|
for( o = i->first_option; o; o=o->next )
|
|
{
|
|
/*
|
|
If this entry is for the base command,
|
|
check if any of the arguments match
|
|
*/
|
|
|
|
if( !condition_test( o->condition ))
|
|
continue;
|
|
|
|
|
|
if( (o->short_opt == L'\0' ) && (o->long_opt[0]==L'\0'))
|
|
{
|
|
use_files &= ((o->result_mode & NO_FILES )==0);
|
|
complete_from_args( str, o->comp, C_(o->desc), comp_out, o->flags );
|
|
}
|
|
|
|
if( wcslen(str) > 0 && use_switches )
|
|
{
|
|
/*
|
|
Check if the short style option matches
|
|
*/
|
|
if( o->short_opt != L'\0' &&
|
|
short_ok( str, o->short_opt, i->short_opt_str ) )
|
|
{
|
|
const wchar_t *desc = C_(o->desc );
|
|
wchar_t completion[2];
|
|
completion[0] = o->short_opt;
|
|
completion[1] = 0;
|
|
|
|
completion_allocate( comp_out, completion, desc, 0 );
|
|
|
|
}
|
|
|
|
/*
|
|
Check if the long style option matches
|
|
*/
|
|
if( o->long_opt[0] != L'\0' )
|
|
{
|
|
int match=0, match_no_case=0;
|
|
|
|
string_buffer_t *whole_opt = sb_halloc( context );
|
|
sb_append( whole_opt, o->old_mode?L"-":L"--", o->long_opt, (void *)0 );
|
|
|
|
match = wcsncmp( str, (wchar_t *)whole_opt->buff, wcslen(str) )==0;
|
|
|
|
if( !match )
|
|
{
|
|
match_no_case = wcsncasecmp( str, (wchar_t *)whole_opt->buff, wcslen(str) )==0;
|
|
}
|
|
|
|
if( match || match_no_case )
|
|
{
|
|
int has_arg=0; /* Does this switch have any known arguments */
|
|
int req_arg=0; /* Does this switch _require_ an argument */
|
|
|
|
int offset = 0;
|
|
int flags = 0;
|
|
|
|
|
|
if( match )
|
|
offset = wcslen( str );
|
|
else
|
|
flags = COMPLETE_NO_CASE;
|
|
|
|
has_arg = !!wcslen( o->comp );
|
|
req_arg = (o->result_mode & NO_COMMON );
|
|
|
|
if( !o->old_mode && ( has_arg && !req_arg ) )
|
|
{
|
|
|
|
/*
|
|
Optional arguments to a switch can
|
|
only be handled using the '=', so we
|
|
add it as a completion. By default
|
|
we avoid using '=' and instead rely
|
|
on '--switch switch-arg', since it
|
|
is more commonly supported by
|
|
homebrew getopt-like functions.
|
|
*/
|
|
string_buffer_t completion;
|
|
sb_init( &completion );
|
|
|
|
sb_printf( &completion,
|
|
L"%ls=",
|
|
((wchar_t *)whole_opt->buff)+offset );
|
|
|
|
completion_allocate( comp_out,
|
|
(wchar_t *)completion.buff,
|
|
C_(o->desc),
|
|
flags );
|
|
|
|
sb_destroy( &completion );
|
|
|
|
}
|
|
|
|
completion_allocate( comp_out,
|
|
((wchar_t *)whole_opt->buff) + offset,
|
|
C_(o->desc),
|
|
flags );
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
halloc_free( context );
|
|
|
|
return use_files;
|
|
}
|
|
|
|
/**
|
|
Perform file completion on the specified string
|
|
*/
|
|
static void complete_param_expand( wchar_t *str,
|
|
array_list_t *comp_out,
|
|
int do_file )
|
|
{
|
|
wchar_t *comp_str;
|
|
int flags;
|
|
|
|
if( (wcsncmp( str, L"--", 2 )) == 0 && (comp_str = wcschr(str, L'=' ) ) )
|
|
{
|
|
comp_str++;
|
|
}
|
|
else
|
|
{
|
|
comp_str = str;
|
|
}
|
|
|
|
flags = EXPAND_SKIP_CMDSUBST |
|
|
ACCEPT_INCOMPLETE |
|
|
(do_file?0:EXPAND_SKIP_WILDCARDS);
|
|
|
|
if( expand_string( 0,
|
|
wcsdup(comp_str),
|
|
comp_out,
|
|
flags ) == EXPAND_ERROR )
|
|
{
|
|
debug( 3, L"Error while expanding string '%ls'", comp_str );
|
|
}
|
|
|
|
}
|
|
|
|
|
|
/**
|
|
Complete the specified string as an environment variable
|
|
*/
|
|
static int complete_variable( const wchar_t *whole_var,
|
|
int start_offset,
|
|
array_list_t *comp_list )
|
|
{
|
|
int i;
|
|
const wchar_t *var = &whole_var[start_offset];
|
|
int varlen = wcslen( var );
|
|
int res = 0;
|
|
array_list_t names;
|
|
al_init( &names );
|
|
env_get_names( &names, 0 );
|
|
|
|
for( i=0; i<al_get_count( &names ); i++ )
|
|
{
|
|
wchar_t *name = (wchar_t *)al_get( &names, i );
|
|
int namelen = wcslen( name );
|
|
int match=0, match_no_case=0;
|
|
|
|
if( varlen > namelen )
|
|
continue;
|
|
|
|
match = ( wcsncmp( var, name, varlen) == 0 );
|
|
|
|
if( !match )
|
|
{
|
|
match_no_case = ( wcsncasecmp( var, name, varlen) == 0 );
|
|
}
|
|
|
|
if( match || match_no_case )
|
|
{
|
|
wchar_t *value_unescaped, *value;
|
|
|
|
value_unescaped = env_get( name );
|
|
if( value_unescaped )
|
|
{
|
|
string_buffer_t desc;
|
|
string_buffer_t comp;
|
|
int flags = 0;
|
|
int offset = 0;
|
|
|
|
sb_init( &comp );
|
|
if( match )
|
|
{
|
|
sb_append( &comp, &name[varlen] );
|
|
offset = varlen;
|
|
}
|
|
else
|
|
{
|
|
sb_append_substring( &comp, whole_var, start_offset );
|
|
sb_append( &comp, name );
|
|
flags = COMPLETE_NO_CASE | COMPLETE_DONT_ESCAPE;
|
|
}
|
|
|
|
value = expand_escape_variable( value_unescaped );
|
|
|
|
sb_init( &desc );
|
|
sb_printf( &desc, COMPLETE_VAR_DESC_VAL, value );
|
|
|
|
completion_allocate( comp_list,
|
|
(wchar_t *)comp.buff,
|
|
(wchar_t *)desc.buff,
|
|
flags );
|
|
res =1;
|
|
|
|
free( value );
|
|
sb_destroy( &desc );
|
|
sb_destroy( &comp );
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
al_destroy( &names );
|
|
return res;
|
|
}
|
|
|
|
/**
|
|
Search the specified string for the \$ sign. If found, try to
|
|
complete as an environment variable.
|
|
|
|
\return 0 if unable to complete, 1 otherwise
|
|
*/
|
|
static int try_complete_variable( const wchar_t *cmd,
|
|
array_list_t *comp )
|
|
{
|
|
int len = wcslen( cmd );
|
|
int i;
|
|
|
|
for( i=len-1; i>=0; i-- )
|
|
{
|
|
if( cmd[i] == L'$' )
|
|
{
|
|
/* wprintf( L"Var prefix \'%ls\'\n", &cmd[i+1] );*/
|
|
return complete_variable( cmd, i+1, comp );
|
|
}
|
|
if( !isalnum(cmd[i]) && cmd[i]!=L'_' )
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
Try to complete the specified string as a username. This is used by
|
|
~USER type expansion.
|
|
|
|
\return 0 if unable to complete, 1 otherwise
|
|
*/
|
|
static int try_complete_user( const wchar_t *cmd,
|
|
array_list_t *comp )
|
|
{
|
|
const wchar_t *first_char=cmd;
|
|
int res=0;
|
|
double start_time = timef();
|
|
|
|
if( *first_char ==L'~' && !wcschr(first_char, L'/'))
|
|
{
|
|
const wchar_t *user_name = first_char+1;
|
|
wchar_t *name_end = wcschr( user_name, L'~' );
|
|
if( name_end == 0 )
|
|
{
|
|
struct passwd *pw;
|
|
int name_len = wcslen( user_name );
|
|
|
|
setpwent();
|
|
|
|
while((pw=getpwent()) != 0)
|
|
{
|
|
double current_time = timef();
|
|
wchar_t *pw_name;
|
|
|
|
if( current_time - start_time > 0.2 )
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
pw_name = str2wcs( pw->pw_name );
|
|
|
|
if( pw_name )
|
|
{
|
|
if( wcsncmp( user_name, pw_name, name_len )==0 )
|
|
{
|
|
string_buffer_t desc;
|
|
|
|
sb_init( &desc );
|
|
sb_printf( &desc,
|
|
COMPLETE_USER_DESC,
|
|
pw_name );
|
|
|
|
completion_allocate( comp,
|
|
&pw_name[name_len],
|
|
(wchar_t *)desc.buff,
|
|
COMPLETE_NO_SPACE );
|
|
|
|
res=1;
|
|
|
|
sb_destroy( &desc );
|
|
}
|
|
else if( wcsncasecmp( user_name, pw_name, name_len )==0 )
|
|
{
|
|
string_buffer_t name;
|
|
string_buffer_t desc;
|
|
|
|
sb_init( &name );
|
|
sb_init( &desc );
|
|
sb_printf( &name,
|
|
L"~%ls",
|
|
pw_name );
|
|
sb_printf( &desc,
|
|
COMPLETE_USER_DESC,
|
|
pw_name );
|
|
|
|
completion_allocate( comp,
|
|
(wchar_t *)name.buff,
|
|
(wchar_t *)desc.buff,
|
|
COMPLETE_NO_CASE | COMPLETE_DONT_ESCAPE | COMPLETE_NO_SPACE );
|
|
res=1;
|
|
|
|
sb_destroy( &desc );
|
|
sb_destroy( &name );
|
|
|
|
}
|
|
free( pw_name );
|
|
}
|
|
}
|
|
endpwent();
|
|
}
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
|
|
void complete( const wchar_t *cmd,
|
|
array_list_t *comp )
|
|
{
|
|
wchar_t *tok_begin, *tok_end, *cmdsubst_begin, *cmdsubst_end, *prev_begin, *prev_end;
|
|
wchar_t *buff;
|
|
tokenizer tok;
|
|
wchar_t *current_token=0, *current_command=0, *prev_token=0;
|
|
int on_command=0;
|
|
int pos;
|
|
int done=0;
|
|
int cursor_pos;
|
|
int use_command = 1;
|
|
int use_function = 1;
|
|
int use_builtin = 1;
|
|
int had_ddash = 0;
|
|
|
|
CHECK( cmd, );
|
|
CHECK( comp, );
|
|
|
|
complete_init();
|
|
|
|
// debug( 1, L"Complete '%ls'", cmd );
|
|
|
|
cursor_pos = wcslen(cmd );
|
|
|
|
parse_util_cmdsubst_extent( cmd, cursor_pos, &cmdsubst_begin, &cmdsubst_end );
|
|
parse_util_token_extent( cmd, cursor_pos, &tok_begin, &tok_end, &prev_begin, &prev_end );
|
|
|
|
if( !cmdsubst_begin )
|
|
done=1;
|
|
|
|
/**
|
|
If we are completing a variable name or a tilde expansion user
|
|
name, we do that and return. No need for any other competions.
|
|
*/
|
|
|
|
if( !done )
|
|
{
|
|
if( try_complete_variable( tok_begin, comp ) || try_complete_user( tok_begin, comp ))
|
|
{
|
|
done=1;
|
|
}
|
|
}
|
|
|
|
if( !done )
|
|
{
|
|
pos = cursor_pos-(cmdsubst_begin-cmd);
|
|
|
|
buff = wcsndup( cmdsubst_begin, cmdsubst_end-cmdsubst_begin );
|
|
|
|
if( !buff )
|
|
done=1;
|
|
}
|
|
|
|
if( !done )
|
|
{
|
|
int had_cmd=0;
|
|
int end_loop=0;
|
|
|
|
tok_init( &tok, buff, TOK_ACCEPT_UNFINISHED );
|
|
|
|
while( tok_has_next( &tok) && !end_loop )
|
|
{
|
|
|
|
switch( tok_last_type( &tok ) )
|
|
{
|
|
|
|
case TOK_STRING:
|
|
{
|
|
|
|
wchar_t *ncmd = tok_last( &tok );
|
|
int is_ddash = (wcscmp( ncmd, L"--" ) == 0) && ( (tok_get_pos( &tok )+2) < pos );
|
|
|
|
if( !had_cmd )
|
|
{
|
|
|
|
if( parser_keywords_is_subcommand( ncmd ) )
|
|
{
|
|
if( wcscmp( ncmd, L"builtin" )==0)
|
|
{
|
|
use_function = 0;
|
|
use_command = 0;
|
|
use_builtin = 1;
|
|
}
|
|
else if( wcscmp( ncmd, L"command" )==0)
|
|
{
|
|
use_command = 1;
|
|
use_function = 0;
|
|
use_builtin = 0;
|
|
}
|
|
break;
|
|
}
|
|
|
|
|
|
if( !is_ddash ||
|
|
( (use_command && use_function && use_builtin ) ) )
|
|
{
|
|
int token_end;
|
|
|
|
free( current_command );
|
|
current_command = wcsdup( ncmd );
|
|
|
|
token_end = tok_get_pos( &tok ) + wcslen( ncmd );
|
|
|
|
on_command = (pos <= token_end );
|
|
had_cmd=1;
|
|
}
|
|
|
|
}
|
|
else
|
|
{
|
|
if( is_ddash )
|
|
{
|
|
had_ddash = 1;
|
|
}
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
case TOK_END:
|
|
case TOK_PIPE:
|
|
case TOK_BACKGROUND:
|
|
{
|
|
had_cmd=0;
|
|
had_ddash = 0;
|
|
use_command = 1;
|
|
use_function = 1;
|
|
use_builtin = 1;
|
|
break;
|
|
}
|
|
|
|
case TOK_ERROR:
|
|
{
|
|
end_loop=1;
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
if( tok_get_pos( &tok ) >= pos )
|
|
{
|
|
end_loop=1;
|
|
}
|
|
|
|
tok_next( &tok );
|
|
|
|
}
|
|
|
|
tok_destroy( &tok );
|
|
free( buff );
|
|
|
|
/*
|
|
Get the string to complete
|
|
*/
|
|
|
|
current_token = wcsndup( tok_begin, cursor_pos-(tok_begin-cmd) );
|
|
|
|
prev_token = prev_begin ? wcsndup( prev_begin, prev_end - prev_begin ): wcsdup(L"");
|
|
|
|
// debug( 0, L"on_command: %d, %ls %ls\n", on_command, current_command, current_token );
|
|
|
|
/*
|
|
Check if we are using the 'command' or 'builtin' builtins
|
|
_and_ we are writing a switch instead of a command. In that
|
|
case, complete using the builtins completions, not using a
|
|
subcommand.
|
|
*/
|
|
|
|
if( (on_command || (wcscmp( current_token, L"--" ) == 0 ) ) &&
|
|
(current_token[0] == L'-') &&
|
|
!(use_command && use_function && use_builtin ) )
|
|
{
|
|
free( current_command );
|
|
if( use_command == 0 )
|
|
current_command = wcsdup( L"builtin" );
|
|
else
|
|
current_command = wcsdup( L"command" );
|
|
|
|
had_cmd = 1;
|
|
on_command = 0;
|
|
}
|
|
|
|
/*
|
|
Use command completions if in between commands
|
|
*/
|
|
if( !had_cmd )
|
|
{
|
|
on_command=1;
|
|
}
|
|
|
|
/*
|
|
We don't want these to be null
|
|
*/
|
|
|
|
if( !current_token )
|
|
{
|
|
current_token = wcsdup(L"");
|
|
}
|
|
|
|
if( !current_command )
|
|
{
|
|
current_command = wcsdup(L"");
|
|
}
|
|
|
|
if( !prev_token )
|
|
{
|
|
prev_token = wcsdup(L"");
|
|
}
|
|
|
|
if( current_token && current_command && prev_token )
|
|
{
|
|
if( on_command )
|
|
{
|
|
/* Complete command filename */
|
|
complete_cmd( current_token,
|
|
comp, use_function, use_builtin, use_command );
|
|
}
|
|
else
|
|
{
|
|
int do_file=0;
|
|
|
|
wchar_t *current_command_unescape = unescape( current_command, 0 );
|
|
wchar_t *prev_token_unescape = unescape( prev_token, 0 );
|
|
wchar_t *current_token_unescape = unescape( current_token, UNESCAPE_INCOMPLETE );
|
|
|
|
if( current_token_unescape && prev_token_unescape && current_token_unescape )
|
|
{
|
|
do_file = complete_param( current_command_unescape,
|
|
prev_token_unescape,
|
|
current_token_unescape,
|
|
!had_ddash,
|
|
comp );
|
|
}
|
|
|
|
free( current_command_unescape );
|
|
free( prev_token_unescape );
|
|
free( current_token_unescape );
|
|
|
|
/*
|
|
If we have found no command specific completions at
|
|
all, fall back to using file completions.
|
|
*/
|
|
if( !al_get_count( comp ) )
|
|
do_file = 1;
|
|
|
|
/*
|
|
This function wants the unescaped string
|
|
*/
|
|
complete_param_expand( current_token, comp, do_file );
|
|
}
|
|
}
|
|
}
|
|
|
|
free( current_token );
|
|
free( current_command );
|
|
free( prev_token );
|
|
|
|
condition_cache_clear();
|
|
|
|
|
|
|
|
}
|
|
|
|
/**
|
|
Print the GNU longopt style switch \c opt, and the argument \c
|
|
argument to the specified stringbuffer, but only if arguemnt is
|
|
non-null and longer than 0 characters.
|
|
*/
|
|
static void append_switch( string_buffer_t *out,
|
|
const wchar_t *opt,
|
|
const wchar_t *argument )
|
|
{
|
|
wchar_t *esc;
|
|
|
|
if( !argument || wcscmp( argument, L"") == 0 )
|
|
return;
|
|
|
|
esc = escape( argument, 1 );
|
|
sb_printf( out, L" --%ls %ls", opt, esc );
|
|
free(esc);
|
|
}
|
|
|
|
void complete_print( string_buffer_t *out )
|
|
{
|
|
complete_entry_t *e;
|
|
|
|
CHECK( out, );
|
|
|
|
for( e = first_entry; e; e=e->next )
|
|
{
|
|
complete_entry_opt_t *o;
|
|
for( o= e->first_option; o; o=o->next )
|
|
{
|
|
wchar_t *modestr[] =
|
|
{
|
|
L"",
|
|
L" --no-files",
|
|
L" --require-parameter",
|
|
L" --exclusive"
|
|
}
|
|
;
|
|
|
|
sb_printf( out,
|
|
L"complete%ls",
|
|
modestr[o->result_mode] );
|
|
|
|
append_switch( out,
|
|
e->cmd_type?L"path":L"command",
|
|
e->cmd );
|
|
|
|
|
|
if( o->short_opt != 0 )
|
|
{
|
|
sb_printf( out,
|
|
L" --short-option '%lc'",
|
|
o->short_opt );
|
|
}
|
|
|
|
|
|
append_switch( out,
|
|
o->old_mode?L"old-option":L"long-option",
|
|
o->long_opt );
|
|
|
|
append_switch( out,
|
|
L"description",
|
|
C_(o->desc) );
|
|
|
|
append_switch( out,
|
|
L"arguments",
|
|
o->comp );
|
|
|
|
append_switch( out,
|
|
L"condition",
|
|
o->condition );
|
|
|
|
sb_printf( out, L"\n" );
|
|
}
|
|
}
|
|
}
|
|
|