src/ash/mktokens

   1 #!/bin/sh -
   2 #       $NetBSD: mktokens,v 1.10 2003/08/22 11:22:23 agc Exp $
   3 #
   4 # Copyright (c) 1991, 1993
   5 #       The Regents of the University of California.  All rights reserved.
   6 #
   7 # This code is derived from software contributed to Berkeley by
   8 # Kenneth Almquist.
   9 #
  10 # Redistribution and use in source and binary forms, with or without
  11 # modification, are permitted provided that the following conditions
  12 # are met:
  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. Neither the name of the University nor the names of its contributors
  19 #    may be used to endorse or promote products derived from this software
  20 #    without specific prior written permission.
  21 #
  22 # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25 # ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32 # SUCH DAMAGE.
  33 #
  34 #       @(#)mktokens    8.1 (Berkeley) 5/31/93
  35
  36 # The following is a list of tokens.  The second column is nonzero if the
  37 # token marks the end of a list.  The third column is the name to print in
  38 # error messages.
  39
  40 if [ -z "$TMPDIR" ]; then
  41     TMPDIR="/tmp"
  42     export TMPDIR
  43 fi
  44 F="$TMPDIR/ka$$"
  45 echo $F
  46 cat > $F <<\!
  47 TEOF    1       end of file
  48 TNL     0       newline
  49 TSEMI   0       ";"
  50 TBACKGND 0      "&"
  51 TAND    0       "&&"
  52 TOR     0       "||"
  53 TPIPE   0       "|"
  54 TLP     0       "("
  55 TRP     1       ")"
  56 TENDCASE 1      ";;"
  57 TENDBQUOTE 1    "`"
  58 TREDIR  0       redirection
  59 TWORD   0       word
  60 TIF     0       "if"
  61 TTHEN   1       "then"
  62 TELSE   1       "else"
  63 TELIF   1       "elif"
  64 TFI     1       "fi"
  65 TWHILE  0       "while"
  66 TUNTIL  0       "until"
  67 TFOR    0       "for"
  68 TDO     1       "do"
  69 TDONE   1       "done"
  70 TBEGIN  0       "{"
  71 TEND    1       "}"
  72 TCASE   0       "case"
  73 TESAC   1       "esac"
  74 TNOT    0       "!"
  75 !
  76 nl=`wc -l $F`
  77 exec > token.h
  78 awk '{print "#define " $1 " " NR-1}' $F
  79 echo '
  80 /* Array indicating which tokens mark the end of a list */
  81 const char tokendlist[] = {'
  82 awk '{print "\t" $2 ","}' $F
  83 echo '};
  84
  85 const char *const tokname[] = {'
  86 sed -e 's/"/\\"/g' \
  87     -e 's/[^     ]*[     ][      ]*[^    ]*[     ][      ]*\(.*\)/      "\1",/' \
  88     $F
  89 echo '};
  90 '
  91 sed 's/"//g' $F | awk '
  92 /TIF/{print "#define KWDOFFSET " NR-1; print "";
  93       print "const char *const parsekwd[] = {"}
  94 /TIF/,/neverfound/{print "      \"" $3 "\","}'
  95 echo '  0
  96 };'
  97
  98 rm $F