sh/mktokens

   1 #!/bin/sh -
   2
   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 # 4. 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 # $FreeBSD$
  36
  37 # The following is a list of tokens.  The second column is nonzero if the
  38 # token marks the end of a list.  The third column is the name to print in
  39 # error messages.
  40
  41 temp=`/usr/bin/mktemp -t ka`
  42 cat > $temp <<\!
  43 TEOF    1       end of file
  44 TNL     0       newline
  45 TSEMI   0       ";"
  46 TBACKGND 0      "&"
  47 TAND    0       "&&"
  48 TOR     0       "||"
  49 TPIPE   0       "|"
  50 TLP     0       "("
  51 TRP     1       ")"
  52 TENDCASE 1      ";;"
  53 TFALLTHRU 1     ";&"
  54 TREDIR  0       redirection
  55 TWORD   0       word
  56 TIF     0       "if"
  57 TTHEN   1       "then"
  58 TELSE   1       "else"
  59 TELIF   1       "elif"
  60 TFI     1       "fi"
  61 TWHILE  0       "while"
  62 TUNTIL  0       "until"
  63 TFOR    0       "for"
  64 TDO     1       "do"
  65 TDONE   1       "done"
  66 TBEGIN  0       "{"
  67 TEND    1       "}"
  68 TCASE   0       "case"
  69 TESAC   1       "esac"
  70 TNOT    0       "!"
  71 !
  72 nl=`wc -l $temp`
  73 exec > token.h
  74 awk '{print "#define " $1 " " NR-1}' $temp
  75 echo '
  76 /* Array indicating which tokens mark the end of a list */
  77 static const char tokendlist[] = {'
  78 awk '{print "\t" $2 ","}' $temp
  79 echo '};
  80
  81 static const char *const tokname[] = {'
  82 sed -e 's/"/\\"/g' \
  83     -e 's/[^     ]*[     ][      ]*[^    ]*[     ][      ]*\(.*\)/      "\1",/' \
  84     $temp
  85 echo '};
  86 '
  87 sed 's/"//g' $temp | awk '
  88 /TIF/{print "#define KWDOFFSET " NR-1; print ""; print "const char *const parsekwd[] = {"}
  89 /TIF/,/neverfound/{print "      \"" $3 "\","}'
  90 echo '  0
  91 };'
  92
  93 rm $temp