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zsh/Functions/Zle/insert-unicode-char
2005-08-18 16:45:28 +00:00

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# Accented characters. Inputs two keys: first the code for the accent, then
# the base character being accented. Note that all input characters are
# ASCII. For best results zsh should have been built with support for
# multibyte characters (--enable-multibyte).
#
# Outputs the character converted from Unicode into the local representation.
# (The conversion is done within the shell, using whatever facilities
# the C library provides.)
#
# When used as a zle widget, the character is inserted at the cursor
# position. With a numeric argument, preview in status line; outside zle,
# print character (and newline) to standard output.
#
# The set of accented characters is reasonably complete up to U+0180, the
# set of special characters less so. However, it mostly gives up at that
# point. Adding new Unicode characters is easy, however. Please send any
# additions to zsh-workers@sunsite.dk .
#
# Some of the accent codes are a little more obscure than others.
# Only the base character changes for upper case: A with circle is "o A".
# ` Grave
# ' Acute
# d Double acute
# ^ Circumflex
# ~ Tilde
# " Diaeresis (Umlaut)
# o Circle
# e Ligatures ending in e or E: e A gives AE, e o gives oe, etc.
# j Ligatures ending in j or J: ij or IJ
# c Cedilla
# / Stroke through character
# - Macron. (A horizonal bar over the letter.)
# u Breve. (A shallow dish shape over the letter.)
# . Dot above
# : Middle dot
# g Ogonek. (A little forward facing hook at the bottom right
# of the character. The "g" stands for "Ogonek" but another
# mnemonic is that g has a squiggle below the line.)
# v Caron. (A little v over the letter.)
# s s s = Eszett (lower case only)
# h Icelandic (or Runic) edh (h d) or thorn (h t)
# m Mathematical: not (m \), multiply (m *), divide (m /), degree (m o),
# +/- (m +), superscripts 1, 2, 3 (m 1 etc.), micro (m u), quarter (m q),
# half (m h), three quarters (m t)
# p Punctuation (and currency etc.): soft space (p _), inverted ! (p !),
# cent (p C), pound sign (p l) (think lira, librum), currency (p $),
# yen (p y), broken bar (p |), section (p s), lonely diaeresis (p "),
# copyright (p C), Spanish feminine marker (p f), left guillemet (p
# <), soft hyphen (p h), registered trade mark (p R), lonely macron (p
# -), lonely acute (p '), Pilcrow (paragraph) (p p), middle dot (p :),
# lonely cedilla (p c), Spanish masculine marker (p m), right
# guillemet (p >), inverted ? (p ?), Euro sign (p e).
#
emulate -LR zsh
setopt cbases extendedglob printeightbit
local accent basechar ochar error
if [[ -n $WIDGET ]]; then
error=(zle -M)
else
error=print
fi
if (( ${+zsh_accented_chars} == 0 )); then
# The associative array zsh_accent_chars is indexed by the
# accent. The values are sets of character / Unicode pairs for
# the character with the given accent. The Unicode value is
# a hex index with no base discriminator; essentially a UCS-4 index
# with the leading zeroes suppressed.
typeset -gA zsh_accented_chars
# grave
accent=\`
zsh_accented_chars[$accent]="\
A C0 E C8 I CC O D2 U D9 a E0 e E8 i EC o F2 u F9 N 1F8 n 1F9 \
"
# acute
accent=\'
zsh_accented_chars[$accent]="\
A C1 E C9 I CD O D3 U DA Y DD a E1 e E9 i EC o F3 u FA y FD C 106 c 107 \
L 139 l 13A N 143 n 144 R 154 r 155 S 15A s 15B Z 179 z 17A \
"
# double acute
accent=d
zsh_accented_chars[$accent]="\
O 150 o 151 U 170 u 171\
"
# circumflex
accent=\^
zsh_accented_chars[$accent]="\
A C2 E CA I CE O D4 U DB a E2 e EA i EE o F4 u FB C 108 c 109 G 11C g 11d \
H 124 h 125 J 134 j 135 S 15C s 15D W 174 w 175 Y 176 y 177 \
"
# tilde
accent=\~
zsh_accented_chars[$accent]="\
A C3 E CB N D1 O D5 a E3 n F1 o F5 I 128 i 129 U 168 u 169 \
"
# diaeresis / Umlaut
accent=\"
zsh_accented_chars[$accent]="\
A C4 I CF O D6 U DC a E4 e EB i EF o F6 u FC y FF Y 178 \
"
# ring above
accent=o
zsh_accented_chars[$accent]="\
A C5 a E5 U 16E u 16F \
"
# ligature with e or E
accent=e
zsh_accented_chars[$accent]="\
A C6 a E6 O 152 o 153 \
"
# ligature with j or J
accent=j
zsh_accented_chars[$accent]="\
I 132 i 133\
"
# cedilla
accent=c
zsh_accented_chars[$accent]="\
C C7 c E7 G 122 g 123 K 136 k 137 L 13B l 13C N 145 n 146 R 156 r 157 \
S 15E s 15F T 162 t 163 \
"
# stroke through
accent=/
zsh_accented_chars[$accent]="\
O D8 o F8 D 110 d 111 H 126 h 127 L 141 l 142 T 166 t 167 b 180 \
"
# macron
accent=-
zsh_accented_chars[$accent]="\
A 100 a 101 E 112 e 113 I 12a i 12b O 14C o 14D U 16A u 16B \
"
# breve
accent=u
zsh_accented_chars[$accent]="\
A 102 a 103 E 114 e 115 G 11E g 11F I 12C i 12D O 14E o 14F U 16C u 16D \
"
# dot above
accent=.
zsh_accented_chars[$accent]="\
C 10A c 10b E 116 e 117 G 120 g 121 I 130 i 131 Z 17B z 17C \
"
# middle dot
accent=:
zsh_accented_chars[$accent]="\
L 13F l 140 \
"
# ogonek
accent=g
zsh_accented_chars[$accent]="\
A 104 a 105 E 118 e 119 I 12E i 12F U 172 u 173 \
"
# caron
accent=v
zsh_accented_chars[$accent]="\
C 10C c 10D D 10E d 10F E 11A e 11B L 13D l 13E N 147 n 148 R 158 r 159 \
S 160 s 161 T 164 t 165 Z 17D z 17E \
"
# eszett
accent=s
zsh_accented_chars[$accent]="\
s DF \
"
# edh or thorn
accent=h
zsh_accented_chars[$accent]="\
D D0 d F0 t FE \
"
# mathematical
accent=m
zsh_accented_chars[$accent]="\
\\ AC o B0 * D7 / F7 + B1 2 B2 3 B3 u B5 1 B9 q BC h BD t BE\
"
# punctuation and currency
accent=p
zsh_accented_chars[$accent]="\
_ A0 ! A1 C A2 l A3 $ A4 y A5 | A6 s A7 \" A8 C A9 f AA < AB \
h AD R AE - AF ' B4 p B6 : B7 c B8 m BA > BB ? BF e 20AC \
"
fi
read -k accent || return 1
if [[ -z $zsh_accented_chars[$accent] ]]; then
$error "No accented characters with accent: $accent"
return 1
fi
local -A charmap
charmap=(${=zsh_accented_chars[$accent]})
read -k basechar
if [[ -z $charmap[$basechar] ]]; then
$error "Accent $accent not available with character $basechar"
return 1
fi
if [[ -z $WIDGET ]]; then
[[ -t 1 ]] && print
print "\U${(l.8..0.)charmap[$basechar]}"
else
ochar="$(print -n "\U${(l.8..0.)charmap[$basechar]}")"
if (( ${+NUMERIC} )); then
$error "Character ${(l.8..0.)charmap[$basechar]}: $ochar"
else
LBUFFER+=$ochar
fi
fi