Remove Encode::Tcl::Extended, suggested by
[p5sagit/p5-mst-13.2.git] / perly.fixer
CommitLineData
fe14fcc3 1#!/bin/sh
2
a0d0e21e 3# Fix up yacc output to allow dynamic allocation. Since perly.c
4# is now provided with the perl source, this should not be necessary.
7b57b0ea 5#
a0d0e21e 6# However, if the user wishes to use byacc, or wishes to try another
7# compiler compiler (e.g. bison or yacc), this script will get run.
25c49cb6 8# See makefile run_byacc target for more details.
a0d0e21e 9#
25c49cb6 10# Currently, only byacc version 1.8 is fully supported.
a0d0e21e 11#
35c8bce7 12# Hacks to make it work with Interactive's SysVr3 Version 2.2
13# doughera@lafvax.lafayette.edu (Andy Dougherty) 3/23/91
9ef589d8 14#
15# Additional information to make the BSD section work with SunOS 4.0.2
16# tdinger@East.Sun.COM (Tom Dinger) 4/15/1991
7b57b0ea 17#
18# Also edit some practices gcc -Wall finds questionable.
19#
35c8bce7 20
2b21cd67 21gnupatch=patch
22. config.sh
23
fe14fcc3 24input=$1
25output=$2
26tmp=/tmp/f$$
27
dae2d13f 28inputh=`echo $input|sed 's:\.c$:.h:'`
29if grep '^#ifdef PERL_CORE' $inputh; then
30 : never mind
31else
32 echo "#ifdef PERL_CORE" > $tmp
33 sed -e 's:^typedef union {:#endif /* PERL_CORE */\
34\
35typedef union {:' $inputh >> $tmp
36 mv -f $tmp $inputh
37fi
38
a0d0e21e 39if grep 'yaccpar 1.8 (Berkeley)' $input >/dev/null 2>&1; then
93a17b20 40 cp $input $output
09bef843 41 # Don't expect the diff to do everything -- do some by hand
e262e9be 42 if test -f perly_c.diff; then
2b21cd67 43 $gnupatch -F3 $output <perly_c.diff
09bef843 44 sed -e '/^[ ]*printf("yydebug:/s/printf(/PerlIO_printf(Perl_debug_log, /' \
45 -e '/^#line /s/"y[.]tab[.]c"/"perly.c"/' \
46 -e '/\[\] *= *[{]/s/^/static /' \
47 -e '/^static static/s/^static //' \
48 -e '/^#define.WORD/,/^#define.ARROW/d' \
49 -e '/^int.yydebug/,/^#define.yystacksize/d' \
7b57b0ea 50 -e 's/^yyerrlab:$//' \
51 -e 's/^ goto yyerrlab;//' \
52 -e 's/^yynewerror:$//' \
53 -e 's/^ goto yynewerror;//' \
54 -e 's|^static char yysccsid\(.*\)|/* static char yysccsid\1 */|' \
09bef843 55 < $output > $tmp && mv -f $tmp $output || exit 1
a0d0e21e 56 rm -rf $input
09bef843 57 echo "If you need to debug perly.c, you need to fix up the #line"
58 echo "directives yourself."
a0d0e21e 59 fi
93a17b20 60 exit
a0d0e21e 61elif grep 'yaccpar 1.9 (Berkeley)' $input >/dev/null 2>&1; then
62 if test -f perly.c.dif9; then
2b21cd67 63 $gnupatch -F3 $output <perly.c.dif9
09bef843 64 sed -e '/^[ ]*printf("yydebug:/s/printf(/PerlIO_printf(Perl_debug_log, /' \
65 -e '/^#line /s/"y[.]tab[.]c"/"perly.c"/' \
66 -e '/\[\] *= *[{]/s/^/static /' \
67 -e '/^static static/s/^static //' \
68 -e '/^#define.WORD/,/^#define.ARROW/d' \
69 -e '/^int.yydebug/,/^#define.yystacksize/d' \
7b57b0ea 70 -e 's/^yyerrlab:$//' \
71 -e 's/^ goto yyerrlab;//' \
72 -e 's/^yynewerror:$//' \
73 -e 's/^ goto yynewerror;//' \
74 -e 's|^static char yysccsid\(.*\)|/* static char yysccsid\1 */|' \
09bef843 75 < $output > $tmp && mv -f $tmp $output || exit 1
a0d0e21e 76 rm -rf $input
09bef843 77 echo "If you need to debug perly.c, you need to fix up the #line"
78 echo "directives yourself."
a0d0e21e 79 exit 0
80 else
81 echo "Diffs from byacc-1.9 are not available."
82 echo "If you wish to proceed anyway, do"
83 echo "cp $input $output"
84 echo "cp y.tab.h perly.h"
85 echo "and re-run make. Otherwise, I will use the old perly.c"
86 touch perly.c
87 # Exit with error status to stop make.
88 exit 1
89 fi
93a17b20 90fi
91
35c8bce7 92plan="unknown"
93
25c49cb6 94echo ""
95echo "Warning: the yacc you have used is not directly supported by perl."
96echo "The perly.fixer script will attempt to make some changes to the generated"
97echo "file. The changes may be incomplete and that might lead to problems later"
98echo "(especially with complex scripts). You may need to apply the changes"
e262e9be 99echo "embedded in perl.fixer (and/or perly_c.dif*) by hand."
25c49cb6 100echo ""
101
102# Below, we check for various characteristic yaccpar outputs.
a0d0e21e 103
35c8bce7 104# Test for BSD 4.3 version.
9ef589d8 105# Also tests for the SunOS 4.0.2 version
fe14fcc3 106egrep 'YYSTYPE[ ]*yyv\[ *YYMAXDEPTH *\];
35c8bce7 107short[ ]*yys\[ *YYMAXDEPTH *\] *;
fe14fcc3 108yyps *= *&yys\[ *-1 *\];
109yypv *= *&yyv\[ *-1 *\];
a0d0e21e 110if *\( *\+\+yyps *>=* *&yys\[ *YYMAXDEPTH *\] *\)' $input >$tmp 2>/dev/null
35c8bce7 111
fe14fcc3 112set `wc -l $tmp`
35c8bce7 113if test "$1" = "5"; then
114 plan="bsd43"
115fi
fe14fcc3 116
35c8bce7 117if test "$plan" = "unknown"; then
a0d0e21e 118 # Test for ISC 2.2 version (probably generic SysVr3).
35c8bce7 119egrep 'YYSTYPE[ ]*yyv\[ *YYMAXDEPTH *\];
120int[ ]*yys\[ *YYMAXDEPTH *\] *;
121yyps *= *&yys\[ *-1 *\];
122yypv *= *&yyv\[ *-1 *\];
a0d0e21e 123if *\( *\+\+yy_ps *>= *&yys\[ *YYMAXDEPTH *\] *\)' $input >$tmp 2>/dev/null
35c8bce7 124
125 set `wc -l $tmp`
126 if test "$1" = "5"; then
127 plan="isc"
128 fi
129fi
fe14fcc3 130
25c49cb6 131# ------
132
35c8bce7 133case "$plan" in
9ef589d8 134 ##################################################################
135 # The SunOS 4.0.2 version has the comparison fixed already.
136 # Also added are out of memory checks (makes porting the generated
137 # code easier) For most systems, it can't hurt. -- TD
35c8bce7 138 "bsd43")
09bef843 139 echo "Attempting to patch perly.c to allow dynamic yacc stack allocation"
35c8bce7 140 echo "Assuming bsd4.3 yaccpar"
141 cat >$tmp <<'END'
fe14fcc3 142/YYSTYPE[ ]*yyv\[ *YYMAXDEPTH *\];/c\
143int yymaxdepth = YYMAXDEPTH;\
144YYSTYPE *yyv; /* where the values are stored */\
145short *yys;\
146short *maxyyps;
147
148/short[ ]*yys\[ *YYMAXDEPTH *\] *;/d
149
150/yyps *= *&yys\[ *-1 *\];/d
151
152/yypv *= *&yyv\[ *-1 *\];/c\
153\ if (!yyv) {\
8c52afec 154\ New(73, yyv, yymaxdepth, YYSTYPE);\
155\ New(73, yys, yymaxdepth, short);\
9ef589d8 156\ if ( !yyv || !yys ) {\
157\ yyerror( "out of memory" );\
158\ return(1);\
159\ }\
fe14fcc3 160\ maxyyps = &yys[yymaxdepth];\
161\ }\
162\ yyps = &yys[-1];\
163\ yypv = &yyv[-1];
164
165
9ef589d8 166/if *( *\+\+yyps *>=* *&yys\[ *YYMAXDEPTH *\] *)/c\
fe14fcc3 167\ if( ++yyps >= maxyyps ) {\
168\ int tv = yypv - yyv;\
169\ int ts = yyps - yys;\
170\
171\ yymaxdepth *= 2;\
8c52afec 172\ Renew(yyv, yymaxdepth, YYSTYPE);\
173\ Renew(yys, yymaxdepth, short);\
9ef589d8 174\ if ( !yyv || !yys ) {\
175\ yyerror( "yacc stack overflow" );\
176\ return(1);\
177\ }\
fe14fcc3 178\ yyps = yys + ts;\
179\ yypv = yyv + tv;\
180\ maxyyps = &yys[yymaxdepth];\
181\ }
182
183/yacc stack overflow.*}/d
184/yacc stack overflow/,/}/d
185END
25c49cb6 186 if sed -f $tmp <$input >$output
187 then echo "The edit seems to have been applied okay."
188 else echo "The edit seems to have failed!"
189 fi
190 ;;
35c8bce7 191
192 #######################################################
193 "isc") # Interactive Systems 2.2 version
09bef843 194 echo "Attempting to patch perly.c to allow dynamic yacc stack allocation"
35c8bce7 195 echo "Assuming Interactive SysVr3 2.2 yaccpar"
196 # Easier to simply put whole script here than to modify the
197 # bsd script with sed.
198 # Main changes: yaccpar sometimes uses yy_ps and yy_pv
199 # which are local register variables.
200 # if(++yyps > YYMAXDEPTH) had opening brace on next line.
201 # I've kept that brace in along with a call to yyerror if
202 # realloc fails. (Actually, I just don't know how to do
203 # multi-line matches in sed.)
204 cat > $tmp << 'END'
205/YYSTYPE[ ]*yyv\[ *YYMAXDEPTH *\];/c\
206int yymaxdepth = YYMAXDEPTH;\
207YYSTYPE *yyv; /* where the values are stored */\
208int *yys;\
209int *maxyyps;
210
211/int[ ]*yys\[ *YYMAXDEPTH *\] *;/d
212
213/yyps *= *&yys\[ *-1 *\];/d
214
215/yypv *= *&yyv\[ *-1 *\];/c\
216\ if (!yyv) {\
8c52afec 217\ New(73, yyv, yymaxdepth, YYSTYPE);\
218\ New(73, yys, yymaxdepth, int);\
35c8bce7 219\ maxyyps = &yys[yymaxdepth];\
220\ }\
221\ yyps = &yys[-1];\
222\ yypv = &yyv[-1];
223
224/if *( *\+\+yy_ps *>= *&yys\[ *YYMAXDEPTH *\] *)/c\
225\ if( ++yy_ps >= maxyyps ) {\
226\ int tv = yy_pv - yyv;\
227\ int ts = yy_ps - yys;\
228\
229\ yymaxdepth *= 2;\
8c52afec 230\ Renew(yyv, yymaxdepth, YYSTYPE);\
231\ Renew(yys, yymaxdepth, int);\
35c8bce7 232\ yy_ps = yyps = yys + ts;\
233\ yy_pv = yypv = yyv + tv;\
234\ maxyyps = &yys[yymaxdepth];\
235\ }\
236\ if (yyv == NULL || yys == NULL)
237END
25c49cb6 238 if sed -f $tmp < $input > $output
239 then echo "The edit seems to have been applied okay."
240 else echo "The edit seems to have failed!"
241 fi
242 ;;
35c8bce7 243
244 ######################################################
245 # Plan still unknown
25c49cb6 246 *)
247 echo "Unable to patch perly.c to allow dynamic yacc stack allocation (plan=$plan)"
248 # just do minimal change to write $output from $input
249 sed -e 's/Received token/ *** Received token/' $input >$output
250 ;;
35c8bce7 251esac
fe14fcc3 252
25c49cb6 253echo ""
fe14fcc3 254rm -rf $tmp $input