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21662: new zle widget insert-unicode-char
This commit is contained in:
Peter Stephenson
parent
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commit
e987416cdd
@ -1,5 +1,8 @@
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2005-08-18 Peter Stephenson <pws@csr.com>
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* 21662: Doc/Zsh/contrib.yo, Functions/Zle/insert-unicode-char:
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compose and insert a Unicode character using two-key codes.
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* 21661: Src/glob.c: variable in 21655 shouldn't be static.
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2005-08-18 Peter Stephenson <pws@pwstephenson.fsnet.co.uk>
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@ -668,6 +668,112 @@ into the command line.
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example(bindkey '^Xf' insert-files)
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)
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tindex(insert-unicode-char)
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item(tt(insert-unicode-char))(
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This function allows you to compose Unicode characters to be inserted
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into the command line. The command is followed by two keys (there is
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no prompt), of which the first indicates the type of accent or special
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character, and the second indicates the base character. Both input
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characters are always from the ASCII character set. For best results
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zsh should have been built with support for multibyte characters
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(configured with tt(--enable-multibyte)).
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The character is converted from Unicode into the local representation and
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inserted into the command line at the cursor position.
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(The conversion is done within the shell, using whatever facilities
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the C library provides.) With a numeric argument, the character and its
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code are previewed in the status line
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The function may be run outside zle in which case it prints the character
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(together with a newline) to standard output. Input is still read from
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keystrokes.
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The set of accented characters is reasonably complete up to U+0180, the
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set of special characters less so. However, it mostly gives up at that
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point. Adding new Unicode characters is easy, however. Please send any
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additions to tt(zsh-workers@sunsite.dk).
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The codes for the first character are as follows:
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startsitem()
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sitem(tt(`))(
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Grave accent.
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)
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sitem(tt('))(
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Acute accent.
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)
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sitem(tt(d))(
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Double acute accent (only supported on a few letters).
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)
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sitem(tt(^))(
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Circumflex.
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)
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sitem(tt(~))(
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Tilde.
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)
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sitem(tt("))(
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Diaeresis (Umlaut).
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)
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sitem(tt(o))(
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Circle over the base character.
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)
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sitem(tt(e))(
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Ligatures ending in e or E: tt(e A) gives AE, tt(e o) gives oe, etc.
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)
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sitem(tt(j))(
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Ligatures ending in j or J: ij or IJ.
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)
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sitem(tt(c))(
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Cedilla.
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)
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sitem(tt(/))(
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Stroke through the base character.
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)
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sitem(tt(-))(
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Macron. (A horizonal bar over the base character.)
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)
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sitem(tt(u))(
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Breve. (A shallow dish shape over the base character.)
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)
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sitem(tt(.))(
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Dot above the base character
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)
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sitem(tt(:))(
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A dot in the middle plane of the base character
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)
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sitem(tt(g))(
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Ogonek. (A little forward facing hook at the bottom right
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of the character. The "g" stands for "Ogonek" but another
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mnemonic is that g has a squiggle below the line.)
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)
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sitem(tt(v))(
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Caron. (A little v over the letter.)
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)
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sitem(tt(s))(
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Used only as tt(s s), a german Eszett or "scharfes S" ligature.
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)
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sitem(tt(h))(
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Icelandic (or Runic) edh (tt(h d)) or thorn (tt(h t)).
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)
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sitem(tt(m))(
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Various mathematical characters: not (tt(m \)), multiply (tt(m *)), divide
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(tt(m /)), degree (tt(m o)), +/- (tt(m +)), superscripts 1, 2, 3 (tt(m 1),
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etc.), micro (tt(m u)), quarter (tt(m q)), half (tt(m h)), three quarters
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(tt(m t)).
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)
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sitem(tt(p))(
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Various punctuation and currency characters (any non-mathematical symbol
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that is not part of a word): soft space (tt(p _)), inverted ! (tt(p !)),
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cent (tt(p C)), pound sign (tt(p l)) (think lira, librum), currency (tt(p
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$)), yen (tt(p y)), broken bar (tt(p |)), section sign (tt(p s)), lonely
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diaeresis (tt(p ")), copyright sign (tt(p C)), Spanish feminine marker
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(tt(p f)), left guillemet (tt(p <)), soft hyphen (tt(p h)), registered
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trade mark (tt(p R)), lonely macron (tt(p -)), lonely acute (tt(p ')),
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Pilcrow (paragraph) sign (tt(p p)), middle dot (tt(p :)),
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lonely cedilla (tt(p c)), Spanish masculine marker (tt(p m)), right
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guillemet (tt(p >)), inverted ? (tt(p ?)), Euro sign (tt(p e)).
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)
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endsitem()
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)
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tindex(narrow-to-region)
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tindex(narrow-to-region-invisible)
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xitem(tt(narrow-to-region [ -p) var(pre) tt(] [ -P) var(post) tt(]))
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214
Functions/Zle/insert-unicode-char
Normal file
214
Functions/Zle/insert-unicode-char
Normal file
@ -0,0 +1,214 @@
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# Accented characters. Inputs two keys: first the code for the accent, then
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# the base character being accented. Note that all input characters are
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# ASCII. For best results zsh should have been built with support for
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# multibyte characters (--enable-multibyte).
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#
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# Outputs the character converted from Unicode into the local representation.
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# (The conversion is done within the shell, using whatever facilities
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# the C library provides.)
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#
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# When used as a zle widget, the character is inserted at the cursor
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# position. With a numeric argument, preview in status line; outside zle,
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# print character (and newline) to standard output.
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#
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# The set of accented characters is reasonably complete up to U+0180, the
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# set of special characters less so. However, it mostly gives up at that
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# point. Adding new Unicode characters is easy, however. Please send any
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# additions to zsh-workers@sunsite.dk .
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#
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# Some of the accent codes are a little more obscure than others.
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# Only the base character changes for upper case: A with circle is "o A".
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# ` Grave
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# ' Acute
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# d Double acute
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# ^ Circumflex
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# ~ Tilde
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# " Diaeresis (Umlaut)
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# o Circle
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# e Ligatures ending in e or E: e A gives AE, e o gives oe, etc.
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# j Ligatures ending in j or J: ij or IJ
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# c Cedilla
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# / Stroke through character
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# - Macron. (A horizonal bar over the letter.)
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# u Breve. (A shallow dish shape over the letter.)
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# . Dot above
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# : Middle dot
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# g Ogonek. (A little forward facing hook at the bottom right
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# of the character. The "g" stands for "Ogonek" but another
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# mnemonic is that g has a squiggle below the line.)
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# v Caron. (A little v over the letter.)
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# s s s = Eszett (lower case only)
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# h Icelandic (or Runic) edh (h d) or thorn (h t)
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# m Mathematical: not (m \), multiply (m *), divide (m /), degree (m o),
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# +/- (m +), superscripts 1, 2, 3 (m 1 etc.), micro (m u), quarter (m q),
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# half (m h), three quarters (m t)
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# p Punctuation (and currency etc.): soft space (p _), inverted ! (p !),
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# cent (p C), pound sign (p l) (think lira, librum), currency (p $),
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# yen (p y), broken bar (p |), section (p s), lonely diaeresis (p "),
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# copyright (p C), Spanish feminine marker (p f), left guillemet (p
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# <), soft hyphen (p h), registered trade mark (p R), lonely macron (p
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# -), lonely acute (p '), Pilcrow (paragraph) (p p), middle dot (p :),
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# lonely cedilla (p c), Spanish masculine marker (p m), right
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# guillemet (p >), inverted ? (p ?), Euro sign (p e).
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#
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emulate -LR zsh
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setopt cbases extendedglob printeightbit
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local accent basechar ochar error
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if [[ -n $WIDGET ]]; then
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error=(zle -M)
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else
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error=print
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fi
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if (( ${+zsh_accented_chars} == 0 )); then
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# The associative array zsh_accent_chars is indexed by the
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# accent. The values are sets of character / Unicode pairs for
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# the character with the given accent. The Unicode value is
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# a hex index with no base discriminator; essentially a UCS-4 index
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# with the leading zeroes suppressed.
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typeset -gA zsh_accented_chars
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# grave
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accent=\`
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zsh_accented_chars[$accent]="\
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A C0 E C8 I CC O D2 U D9 a E0 e E8 i EC o F2 u F9 N 1F8 n 1F9 \
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"
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# acute
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accent=\'
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zsh_accented_chars[$accent]="\
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A C1 E C9 I CD O D3 U DA Y DD a E1 e E9 i EC o F3 u FA y FD C 106 c 107 \
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L 139 l 13A N 143 n 144 R 154 r 155 S 15A s 15B Z 179 z 17A \
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"
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# double acute
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accent=d
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zsh_accented_chars[$accent]="\
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O 150 o 151 U 170 u 171\
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"
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# circumflex
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accent=\^
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zsh_accented_chars[$accent]="\
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A C2 E CA I CE O D4 U DB a E2 e EA i EE o F4 u FB C 108 c 109 G 11C g 11d \
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H 124 h 125 J 134 j 135 S 15C s 15D W 174 w 175 Y 176 y 177 \
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"
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# tilde
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accent=\~
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zsh_accented_chars[$accent]="\
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A C3 E CB N D1 O D5 a E3 n F1 o F5 I 128 i 129 U 168 u 169 \
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"
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# diaeresis / Umlaut
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accent=\"
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zsh_accented_chars[$accent]="\
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A C4 I CF O D6 U DC a E4 e EB i EF o F6 u FC y FF Y 178 \
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"
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# ring above
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accent=o
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zsh_accented_chars[$accent]="\
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A C5 a E5 U 16E u 16F \
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"
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# ligature with e or E
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accent=e
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zsh_accented_chars[$accent]="\
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A C6 a E6 O 152 o 153 \
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"
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# ligature with j or J
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accent=j
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zsh_accented_chars[$accent]="\
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I 132 i 133\
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"
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# cedilla
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accent=c
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zsh_accented_chars[$accent]="\
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C C7 c E7 G 122 g 123 K 136 k 137 L 13B l 13C N 145 n 146 R 156 r 157 \
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S 15E s 15F T 162 t 163 \
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"
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# stroke through
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accent=/
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zsh_accented_chars[$accent]="\
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O D8 o F8 D 110 d 111 H 126 h 127 L 141 l 142 T 166 t 167 b 180 \
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"
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# macron
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accent=-
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zsh_accented_chars[$accent]="\
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A 100 a 101 E 112 e 113 I 12a i 12b O 14C o 14D U 16A u 16B \
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"
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# breve
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accent=u
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zsh_accented_chars[$accent]="\
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A 102 a 103 E 114 e 115 G 11E g 11F I 12C i 12D O 14E o 14F U 16C u 16D \
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"
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# dot above
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accent=.
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zsh_accented_chars[$accent]="\
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C 10A c 10b E 116 e 117 G 120 g 121 I 130 i 131 Z 17B z 17C \
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"
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# middle dot
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accent=:
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zsh_accented_chars[$accent]="\
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L 13F l 140 \
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"
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# ogonek
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accent=g
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zsh_accented_chars[$accent]="\
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A 104 a 105 E 118 e 119 I 12E i 12F U 172 u 173 \
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"
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# caron
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accent=v
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zsh_accented_chars[$accent]="\
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C 10C c 10D D 10E d 10F E 11A e 11B L 13D l 13E N 147 n 148 R 158 r 159 \
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S 160 s 161 T 164 t 165 Z 17D z 17E \
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"
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# eszett
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accent=s
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zsh_accented_chars[$accent]="\
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s DF \
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"
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# edh or thorn
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accent=h
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zsh_accented_chars[$accent]="\
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D D0 d F0 t FE \
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"
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# mathematical
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accent=m
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zsh_accented_chars[$accent]="\
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\\ AC o B0 * D7 / F7 + B1 2 B2 3 B3 u B5 1 B9 q BC h BD t BE\
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"
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# punctuation and currency
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accent=p
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zsh_accented_chars[$accent]="\
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_ A0 ! A1 C A2 l A3 $ A4 y A5 | A6 s A7 \" A8 C A9 f AA < AB \
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h AD R AE - AF ' B4 p B6 : B7 c B8 m BA > BB ? BF e 20AC \
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"
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fi
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read -k accent || return 1
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if [[ -z $zsh_accented_chars[$accent] ]]; then
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$error "No accented characters with accent: $accent"
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return 1
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fi
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local -A charmap
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charmap=(${=zsh_accented_chars[$accent]})
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read -k basechar
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if [[ -z $charmap[$basechar] ]]; then
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$error "Accent $accent not available with character $basechar"
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return 1
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fi
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if [[ -z $WIDGET ]]; then
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[[ -t 1 ]] && print
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print "\U${(l.8..0.)charmap[$basechar]}"
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else
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ochar="$(print -n "\U${(l.8..0.)charmap[$basechar]}")"
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if (( ${+NUMERIC} )); then
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$error "Character ${(l.8..0.)charmap[$basechar]}: $ochar"
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else
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LBUFFER+=$ochar
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fi
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fi
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