summary refs log tree commit diff
path: root/Completion/Base/Completer/_expand
blob: 4bb9ab777ece4e14fe44a8e713ec4c8773cf3231 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
#autoload

# This completer function is intended to be used as the first completer
# function and allows one to say more explicitly when and how the word
# from the line should be expanded than expand-or-complete.
# This function will allow other completer functions to be called if
# the expansions done produce no result or do not change the original
# word from the line.

setopt localoptions nonomatch

[[ _matcher_num -gt 1 ]] && return 1

local exp word sort expr expl subd suf=" " force opt asp tmp opre pre epre
local continue=0

(( $# )) &&
    while getopts gsco opt; do
      force="$force$opt"
    done

if [[ "$funcstack[2]" = _prefix ]]; then
  word="$IPREFIX$PREFIX$SUFFIX"
else
  word="$IPREFIX$PREFIX$SUFFIX$ISUFFIX"
fi

[[ "$word" = *\$(|\{[^\}]#) ||
   ( "$word" = *\$[a-zA-Z0-9_]## && $+parameters[${word##*\$}] -eq 0 ) ]] &&
    return 1

### I'm not sure about the pattern to use in the following test.
# It once was:
#  [[ "$word" = (\~*/|\$(|[=~#^+])[a-zA-Z0-9_\[\]]##[^a-zA-Z0-9_\[\]]|\$\{*\}?)[^\$\{\}\(\)\<\>?^*#~]# ]] &&

zstyle -T ":completion:${curcontext}:" suffix &&
  [[ "$word" = (\~*/*|*\$(|[=~#^+])[a-zA-Z0-9_\[\]]##[^a-zA-Z0-9_\[\]]|*\$\{*\}?) &&
     "${(e)word}" != (#s)(*[^\\]|)[][^*?\(\)\<\>\{\}\|]* ]] &&
  return 1

zstyle -s ":completion:${curcontext}:" accept-exact tmp ||
    [[ ! -o recexact ]] || tmp=1

if [[ "$tmp" != (yes|true|on|1) ]]; then
  { [[ "$word" = \~(|[-+]) ||
       ( "$word" = \~[-+][1-9]## && $word[3,-1] -le $#dirstack ) ]] && return 1 }
  { [[ ( "$word" = \~* && ${#userdirs[(I)${word[2,-1]}*]}+${#nameddirs[(I)${word[2,-1]}*]} -gt 1 ) ||
       ( "$word" = *\$[a-zA-Z0-9_]## && 
         ${#parameters[(I)${word##*\$}*]} -ne 1 ) ]] && continue=1 }
  [[ continue -eq 1 && "$tmp" != continue ]] && return 1
fi

# In exp we will collect the expansions.

exp=("$word")

# First try substitution. That weird thing spanning multiple lines
# changes quoted spaces, tabs, and newlines into spaces and protects
# this function from aborting on parse errors in the expansion.

if [[ "$force" = *s* ]] ||
   zstyle -T ":completion:${curcontext}:" substitute; then

###  We once used this:
###
###  [[ ! -o ignorebraces && "${#${exp}//[^\{]}" = "${#${exp}//[^\}]}" ]] &&
###      eval exp\=\( ${${(q)exp}:gs/\\{/\{/:gs/\\}/\}/} \) 2>/dev/null
###
###  instead of the following loop to expand braces.  But that made
###  parameter expressions such as ${foo} be expanded like brace
###  expansions, too (and with braceccl set...).

   if [[ ! -o ignorebraces && "${#${exp}//[^\{]}" = "${#${exp}//[^\}]}" ]]; then
     local otmp

     tmp=${(q)word}
     while [[ $#tmp != $#otmp ]]; do
       otmp=$tmp
       tmp=${tmp//(#b)\\\$\\\{(([^\{\}]|\\\\{|\\\\})#)([^\\])\\\}/\\$\\\\{${match[1]}${match[3]}\\\\}}
     done
     eval exp\=\( ${tmp:gs/\\{/\{/:gs/\\}/\}/} \) 2>/dev/null
   fi

###  There's a bug: spaces resulting from brace expansion are quoted in
###  the following expression, too.  We don't want that, but I have no
###  idea how to fix it.

  eval 'exp=( ${${(e)exp//\\[ 	
]/ }//(#b)([ 	
])/\\$match[1]} )' 2>/dev/null
else
  exp=( ${exp:s/\\\$/\$} )
fi

# If the array is empty, store the original string again.

[[ -z "$exp" ]] && exp=("$word")

subd=("$exp[@]")

# Now try globbing.

[[ "$force" = *g* ]] || zstyle -T ":completion:${curcontext}:" glob &&
    eval 'exp=( ${~exp//(#b)\\[ 	
]/$match[1]} ); exp=( ${(q)exp} )' 2>/dev/null

### Don't remember why we once used this instead of the (q) above.
#    eval 'exp=( ${~exp} ); exp=( ${exp//(#b)([][()|*?^#~<>\\=])/\\${match[1]}} )' 2>/dev/null

# If we don't have any expansions or only one and that is the same
# as the original string, we let other completers run.

(( $#exp )) || exp=("$subd[@]")

[[ $#exp -eq 1 && "${exp[1]//\\}" = "${word//\\}"(|\(N\)) ]] && return 1

# With subst-globs-only we bail out if there were no glob expansions,
# regardless of any substitutions

{ [[ "$force" = *o* ]] ||
  zstyle -t ":completion:${curcontext}:" subst-globs-only } &&
  [[ "$subd" = "$exp"(|\(N\)) ]] &&  return 1

zstyle -s ":completion:${curcontext}:" keep-prefix tmp || tmp=changed

if [[ "$word" = (\~*/*|*\$*/*) && "$tmp" = (yes|true|on|1|changed) ]]; then
  if [[ "$word" = *\$* ]]; then
    opre="${(M)word##*\$[^/]##/}"
  else
    opre="${word%%/*}"
  fi
  eval 'epre=( ${(e)~opre} )' 2> /dev/null

  if [[ -n "$epre" && $#epre -eq 1 ]]; then
    pre="${(q)epre[1]}"
    [[ ( "$tmp" != changed || $#exp -gt 1 ||
       "${opre}${exp[1]#${pre}}" != "$word" ) && "${exp[1]}" = $pre* ]] &&
       exp=( ${opre}${^exp#${pre}} )
  fi
  [[ $#exp -eq 1 && "$exp[1]" = "$word" ]] && return 1
fi

# Now add as matches whatever the user requested.

zstyle -s ":completion:${curcontext}:" sort sort

[[ "$sort" = (yes|true|1|on) ]] && exp=( "${(@o)exp}" )

if zstyle -s ":completion:${curcontext}:" add-space tmp; then
  if [[ "$tmp" != *subst* || "$word" != *\$* || "$exp[1]" = *\$* ]]; then
    [[ "$tmp" = *file* ]] && asp=file
    [[ "$tmp" = *(yes|true|1|on|subst)* ]] && asp="yes$asp"
  fi
else
  asp=file
fi

# If there is only one expansion, add a suitable suffix

if (( $#exp == 1 )); then
  if [[ -d ${exp[1]/${opre}/${pre}} && "$exp[1]" != */ ]]; then
    suf=/
  elif [[ "$asp" = yes* ||
          ( "$asp" = *file && -f "${exp[1]/${opre}/${pre}}" ) ]]; then
    suf=' '
  else
    suf=
  fi
fi

if [[ -z "$compstate[insert]" ]] ;then
  if [[ "$sort" = menu ]]; then
    _description expansions expl expansions "o:$word"
  else
    _description -V expansions expl expansions "o:$word"
  fi

  compadd "$expl[@]" -UQ -qS "$suf" -a exp
else
  _tags all-expansions expansions original

  if [[ $#exp -gt 1 ]] && _requested expansions; then
    local i j normal space dir

    if [[ "$sort" = menu ]]; then
      _description expansions expl expansions "o:$word"
    else
      _description -V expansions expl expansions "o:$word"
    fi
    normal=()
    space=()
    dir=()

    for i in "$exp[@]"; do
      j="${i/${opre}/${pre}}"
      if [[ -d "$j" && "$i" != */ ]]; then
        dir=( "$dir[@]" "$i" )
      elif [[ "$asp" = yes* || ( "$asp" = *file && -f "$j" ) ]]; then
        space=( "$space[@]" "$i" )
      else
	normal=( "$normal[@]" "$i" )
      fi
    done
    (( $#dir ))    && compadd "$expl[@]" -UQ -qS/ -a dir
    (( $#space ))  && compadd "$expl[@]" -UQ -qS " " -a space
    (( $#normal )) && compadd "$expl[@]" -UQ -qS "" -a normal
  fi
  if _requested all-expansions expl 'all expansions'; then
    local disp dstr

    if [[ "${#${exp}}" -ge COLUMNS ]]; then
      disp=( -ld dstr )
      dstr=( "${(r:COLUMNS-5:)exp} ..." )
    else
      disp=()
    fi
    [[ -o multios ]] && exp=($exp[1] $compstate[redirect]${^exp[2,-1]})
    compadd "$disp[@]" "$expl[@]" -UQ -qS "$suf" - "$exp"
  fi

  _requested original expl original && compadd "$expl[@]" -UQ - "$word"

  compstate[insert]=menu
fi

return continue