0915509c52
(operators all come first, then TWORD, then keywords), and switch from using TIF to define KWDOFFSET to using TWORD (the barrier, rather than the token that happens to be first after it.)
100 lines
3.0 KiB
Bash
100 lines
3.0 KiB
Bash
#!/bin/sh -
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# $NetBSD: mktokens,v 1.14 2017/07/26 03:46:54 kre Exp $
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#
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# Copyright (c) 1991, 1993
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# The Regents of the University of California. All rights reserved.
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#
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# This code is derived from software contributed to Berkeley by
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# Kenneth Almquist.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. Neither the name of the University nor the names of its contributors
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# may be used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# @(#)mktokens 8.1 (Berkeley) 5/31/93
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: ${AWK:=awk}
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: ${SED:=sed}
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# The following is a list of tokens. The second column is nonzero if the
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# token marks the end of a list. The third column is the name to print in
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# error messages.
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# Note that all the keyword tokens come after TWORD, and all the others
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# come before it. We rely upon that relationship - keep it!
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cat > /tmp/ka$$ <<\!
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TEOF 1 end of file
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TNL 0 newline
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TSEMI 0 ";"
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TBACKGND 0 "&"
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TAND 0 "&&"
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TOR 0 "||"
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TPIPE 0 "|"
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TLP 0 "("
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TRP 1 ")"
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TENDCASE 1 ";;"
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TCASEFALL 1 ";&"
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TENDBQUOTE 1 "`"
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TREDIR 0 redirection
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TWORD 0 word
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TIF 0 "if"
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TTHEN 1 "then"
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TELSE 1 "else"
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TELIF 1 "elif"
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TFI 1 "fi"
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TWHILE 0 "while"
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TUNTIL 0 "until"
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TFOR 0 "for"
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TDO 1 "do"
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TDONE 1 "done"
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TBEGIN 0 "{"
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TEND 1 "}"
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TCASE 0 "case"
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TESAC 1 "esac"
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TNOT 0 "!"
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!
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nl=`wc -l /tmp/ka$$`
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exec > token.h
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${AWK} '{print "#define " $1 " " NR-1}' /tmp/ka$$
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echo '
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/* Array indicating which tokens mark the end of a list */
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const char tokendlist[] = {'
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${AWK} '{print "\t" $2 ","}' /tmp/ka$$
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echo '};
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const char *const tokname[] = {'
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${SED} -e 's/"/\\"/g' \
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-e 's/[^ ]*[ ][ ]*[^ ]*[ ][ ]*\(.*\)/ "\1",/' \
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/tmp/ka$$
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echo '};
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'
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${SED} 's/"//g' /tmp/ka$$ | ${AWK} '
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/TWORD/{print "#define KWDOFFSET " NR; print "";
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print "const char *const parsekwd[] = {"}
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/TIF/,/neverfound/{print " \"" $3 "\","}'
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echo ' 0
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};'
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rm /tmp/ka$$
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