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35 lines
1.2 KiB
Bash
35 lines
1.2 KiB
Bash
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#!/bin/bash
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#
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# generate lexer files from flex input files.
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set -eu
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TMPFILE=_flex_tmp.c
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OUTFILE=lexyy.c
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flex -o $TMPFILE pars0lex.l
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# AIX needs its includes done in a certain order, so include "univ.i" first
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# to be sure we get it right.
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echo '#include "univ.i"' > $OUTFILE
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# flex assigns a pointer to an int in one place without a cast, resulting in
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# a warning on Win64. Add the cast. Also define some symbols as static.
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sed -e '
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s/'"$TMPFILE"'/'"$OUTFILE"'/;
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s/\(int offset = \)\((yy_c_buf_p) - (yytext_ptr)\);/\1(int)(\2);/;
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s/\(void yy\(restart\|_\(delete\|flush\)_buffer\)\)/static \1/;
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s/\(void yy_switch_to_buffer\)/__attribute__((unused)) static \1/;
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s/\(void yy\(push\|pop\)_buffer_state\)/__attribute__((unused)) static \1/;
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s/\(YY_BUFFER_STATE yy_create_buffer\)/static \1/;
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s/\(\(int\|void\) yy[gs]et_\)/__attribute__((unused)) static \1/;
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s/\(void \*\?yy\(\(re\)\?alloc\|free\)\)/static \1/;
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s/\(extern \)\?\(int yy\(leng\|lineno\|_flex_debug\)\)/static \2/;
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s/\(int yylex_destroy\)/__attribute__((unused)) static \1/;
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s/\(extern \)\?\(int yylex \)/UNIV_INTERN \2/;
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s/^\(\(FILE\|char\) *\* *yyget\)/__attribute__((unused)) static \1/;
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s/^\(extern \)\?\(\(FILE\|char\) *\* *yy\)/static \2/;
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' < $TMPFILE >> $OUTFILE
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rm $TMPFILE
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