source: trunk/third/ispell/tryaffix.X @ 22599

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1!!POUNDBANG!!
2#
3# $Id: tryaffix.X,v 1.1.1.2 2007-02-01 19:50:19 ghudson Exp $
4#
5# Copyright 1987-1989, 1992, 1993, 1999, 2001, 2005, Geoff Kuenning,
6# Claremont, CA
7# All rights reserved.
8#
9# Redistribution and use in source and binary forms, with or without
10# modification, are permitted provided that the following conditions
11# are met:
12#
13# 1. Redistributions of source code must retain the above copyright
14#    notice, this list of conditions and the following disclaimer.
15# 2. Redistributions in binary form must reproduce the above copyright
16#    notice, this list of conditions and the following disclaimer in the
17#    documentation and/or other materials provided with the distribution.
18# 3. All modifications to the source code must be clearly marked as
19#    such.  Binary redistributions based on modified source code
20#    must be clearly marked as modified versions in the documentation
21#    and/or other materials provided with the distribution.
22# 4. The code that causes the 'ispell -v' command to display a prominent
23#    link to the official ispell Web site may not be removed.
24# 5. The name of Geoff Kuenning may not be used to endorse or promote
25#    products derived from this software without specific prior
26#    written permission.
27#
28# THIS SOFTWARE IS PROVIDED BY GEOFF KUENNING AND CONTRIBUTORS ``AS IS'' AND
29# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
30# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
31# ARE DISCLAIMED.  IN NO EVENT SHALL GEOFF KUENNING OR CONTRIBUTORS BE LIABLE
32# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
34# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
35# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
36# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
37# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
38# SUCH DAMAGE.
39#
40# Try out affixes to see if they produce valid roots
41#
42# Usage:
43#
44#       tryaffix [-p | -s] [-c] dict-file affix[+addition] ...
45#
46#       The -p and -s flags specify whether prefixes or suffixes
47#       are being tried;  if neither is specified, suffixes are assumed.
48#
49#       If the -c flag is given, statistics on the various affixes are given:
50#       a count of words it potentially applies to, and an estimate of the
51#       number of dictionary bytes the flag would save.  The estimate will
52#       be high if the flag generates words that are currently generated
53#       by other flags.
54#
55#       The dictionary file, dict-file, must already be expanded and sorted,
56#       and things will work best if uppercase has been folded to lower with
57#       'tr'.
58#
59#       The "affixes" are things to be stripped from the dictionary
60#       file to produce trial roots:  for English, "con" and "ing"
61#       are examples.  The "additions" are letters that would have
62#       been stripped off the root before adding the affix.  For
63#       example, the affix "ing" strips "e" for words ending in "e"
64#       (as in "like --> liking") so we might run:
65#
66#           tryaffix ing ing+e
67#
68#       to cover both cases.
69#
70# $Log: not supported by cvs2svn $
71# Revision 1.13  2005/04/27 01:18:35  geoff
72# Fix a typo in a comment.  Work around idiotic POSIX incompatibilities
73# in sort.  Add secure temp-file handling.
74#
75# Revision 1.12  2005/04/14 14:40:13  geoff
76# Use /tmp as the default temp directory
77#
78# Revision 1.11  2005/04/14 14:38:23  geoff
79# Update license.  Protect against modernized (i.e., incompatible) and
80# internationalized sort commands.
81#
82# Revision 1.10  2001/09/06 00:30:29  geoff
83# Changes from Eli Zaretskii to support DJGPP compilation.
84#
85# Revision 1.9  2001/07/25 21:51:47  geoff
86# Minor license update.
87#
88# Revision 1.8  2001/07/23 20:24:04  geoff
89# Update the copyright and the license.
90#
91# Revision 1.7  1999/01/07 01:57:48  geoff
92# Update the copyright.
93#
94# Revision 1.6  1994/01/25  07:12:18  geoff
95# Get rid of all old RCS log lines in preparation for the 3.1 release.
96#
97#
98
99USAGE='tryaffix [-p | -s] [-c] dict-file affix[+addition] ...'
100counts=no
101pre=
102suf='$'
103while :
104do
105    case "$1" in
106        -p)
107            pre='^'
108            suf=
109            ;;
110        -s)
111            pre=
112            suf='$'
113            ;;
114        -c)
115            counts=yes
116            ;;
117        -*)
118            echo "$USAGE" 1>&2
119            exit 1
120            ;;
121        *)
122            break
123            ;;
124    esac
125    shift
126done
127dict="$1"
128shift
129if [ ! -r "$dict" ]
130then
131    echo "Can't read $dict" 1>&2
132    echo "$USAGE" 1>&2
133    exit 1
134elif [ $# -eq 0 ]
135then
136    echo "$USAGE" 1>&2
137    exit 1
138fi
139while [ $# -ne 0 ]
140do
141    case "$1" in
142        *+*)
143            affix=`expr "$1" : '\(.*\)+'`
144            addition=`expr "$1" : '.*+\(.*\)'`
145            sedscript="s/$pre$affix$suf/$addition/p"
146            ;;
147        *)
148            sedscript="s/$pre$1$suf//p"
149            ;;
150    esac
151    if [ "$counts" = no ]
152    then
153        echo ===== "$1" =====
154        sed -n -e "$sedscript" "$dict" | comm -12 - "$dict"
155    else
156        echo "$1" \
157          `sed -n -e "$sedscript" "$dict" | comm -12 - "$dict" | wc -lc`
158    fi
159    shift
160done
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