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1 | #!/bin/sh |
2 | |
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3 | # Hacks to make it work with Interactive's SysVr3 Version 2.2 |
4 | # doughera@lafvax.lafayette.edu (Andy Dougherty) 3/23/91 |
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5 | # |
6 | # Additional information to make the BSD section work with SunOS 4.0.2 |
7 | # tdinger@East.Sun.COM (Tom Dinger) 4/15/1991 |
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8 | |
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9 | input=$1 |
10 | output=$2 |
11 | tmp=/tmp/f$$ |
12 | |
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13 | plan="unknown" |
14 | |
15 | # Test for BSD 4.3 version. |
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16 | # Also tests for the SunOS 4.0.2 version |
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17 | egrep 'YYSTYPE[ ]*yyv\[ *YYMAXDEPTH *\]; |
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18 | short[ ]*yys\[ *YYMAXDEPTH *\] *; |
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19 | yyps *= *&yys\[ *-1 *\]; |
20 | yypv *= *&yyv\[ *-1 *\]; |
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21 | if *\( *\+\+yyps *>=* *&yys\[ *YYMAXDEPTH *\] *\)' $input >$tmp |
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22 | |
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23 | set `wc -l $tmp` |
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24 | if test "$1" = "5"; then |
25 | plan="bsd43" |
26 | fi |
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27 | |
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28 | if test "$plan" = "unknown"; then |
29 | # Test for ISC 2.2 version. |
30 | egrep 'YYSTYPE[ ]*yyv\[ *YYMAXDEPTH *\]; |
31 | int[ ]*yys\[ *YYMAXDEPTH *\] *; |
32 | yyps *= *&yys\[ *-1 *\]; |
33 | yypv *= *&yyv\[ *-1 *\]; |
34 | if *\( *\+\+yy_ps *>= *&yys\[ *YYMAXDEPTH *\] *\)' $input >$tmp |
35 | |
36 | set `wc -l $tmp` |
37 | if test "$1" = "5"; then |
38 | plan="isc" |
39 | fi |
40 | fi |
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41 | |
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42 | case "$plan" in |
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43 | ################################################################## |
44 | # The SunOS 4.0.2 version has the comparison fixed already. |
45 | # Also added are out of memory checks (makes porting the generated |
46 | # code easier) For most systems, it can't hurt. -- TD |
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47 | "bsd43") |
48 | echo "Patching perly.c to allow dynamic yacc stack allocation" |
49 | echo "Assuming bsd4.3 yaccpar" |
50 | cat >$tmp <<'END' |
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51 | /YYSTYPE[ ]*yyv\[ *YYMAXDEPTH *\];/c\ |
52 | int yymaxdepth = YYMAXDEPTH;\ |
53 | YYSTYPE *yyv; /* where the values are stored */\ |
54 | short *yys;\ |
55 | short *maxyyps; |
56 | |
57 | /short[ ]*yys\[ *YYMAXDEPTH *\] *;/d |
58 | |
59 | /yyps *= *&yys\[ *-1 *\];/d |
60 | |
61 | /yypv *= *&yyv\[ *-1 *\];/c\ |
62 | \ if (!yyv) {\ |
63 | \ yyv = (YYSTYPE*) malloc(yymaxdepth * sizeof(YYSTYPE));\ |
64 | \ yys = (short*) malloc(yymaxdepth * sizeof(short));\ |
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65 | \ if ( !yyv || !yys ) {\ |
66 | \ yyerror( "out of memory" );\ |
67 | \ return(1);\ |
68 | \ }\ |
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69 | \ maxyyps = &yys[yymaxdepth];\ |
70 | \ }\ |
71 | \ yyps = &yys[-1];\ |
72 | \ yypv = &yyv[-1]; |
73 | |
74 | |
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75 | /if *( *\+\+yyps *>=* *&yys\[ *YYMAXDEPTH *\] *)/c\ |
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76 | \ if( ++yyps >= maxyyps ) {\ |
77 | \ int tv = yypv - yyv;\ |
78 | \ int ts = yyps - yys;\ |
79 | \ |
80 | \ yymaxdepth *= 2;\ |
81 | \ yyv = (YYSTYPE*)realloc((char*)yyv,\ |
82 | \ yymaxdepth*sizeof(YYSTYPE));\ |
83 | \ yys = (short*)realloc((char*)yys,\ |
84 | \ yymaxdepth*sizeof(short));\ |
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85 | \ if ( !yyv || !yys ) {\ |
86 | \ yyerror( "yacc stack overflow" );\ |
87 | \ return(1);\ |
88 | \ }\ |
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89 | \ yyps = yys + ts;\ |
90 | \ yypv = yyv + tv;\ |
91 | \ maxyyps = &yys[yymaxdepth];\ |
92 | \ } |
93 | |
94 | /yacc stack overflow.*}/d |
95 | /yacc stack overflow/,/}/d |
96 | END |
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97 | sed -f $tmp <$input >$output ;; |
98 | |
99 | ####################################################### |
100 | "isc") # Interactive Systems 2.2 version |
101 | echo "Patching perly.c to allow dynamic yacc stack allocation" |
102 | echo "Assuming Interactive SysVr3 2.2 yaccpar" |
103 | # Easier to simply put whole script here than to modify the |
104 | # bsd script with sed. |
105 | # Main changes: yaccpar sometimes uses yy_ps and yy_pv |
106 | # which are local register variables. |
107 | # if(++yyps > YYMAXDEPTH) had opening brace on next line. |
108 | # I've kept that brace in along with a call to yyerror if |
109 | # realloc fails. (Actually, I just don't know how to do |
110 | # multi-line matches in sed.) |
111 | cat > $tmp << 'END' |
112 | /YYSTYPE[ ]*yyv\[ *YYMAXDEPTH *\];/c\ |
113 | int yymaxdepth = YYMAXDEPTH;\ |
114 | YYSTYPE *yyv; /* where the values are stored */\ |
115 | int *yys;\ |
116 | int *maxyyps; |
117 | |
118 | /int[ ]*yys\[ *YYMAXDEPTH *\] *;/d |
119 | |
120 | /yyps *= *&yys\[ *-1 *\];/d |
121 | |
122 | /yypv *= *&yyv\[ *-1 *\];/c\ |
123 | \ if (!yyv) {\ |
124 | \ yyv = (YYSTYPE*) malloc(yymaxdepth * sizeof(YYSTYPE));\ |
125 | \ yys = (int*) malloc(yymaxdepth * sizeof(int));\ |
126 | \ maxyyps = &yys[yymaxdepth];\ |
127 | \ }\ |
128 | \ yyps = &yys[-1];\ |
129 | \ yypv = &yyv[-1]; |
130 | |
131 | /if *( *\+\+yy_ps *>= *&yys\[ *YYMAXDEPTH *\] *)/c\ |
132 | \ if( ++yy_ps >= maxyyps ) {\ |
133 | \ int tv = yy_pv - yyv;\ |
134 | \ int ts = yy_ps - yys;\ |
135 | \ |
136 | \ yymaxdepth *= 2;\ |
137 | \ yyv = (YYSTYPE*)realloc((char*)yyv,\ |
138 | \ yymaxdepth*sizeof(YYSTYPE));\ |
139 | \ yys = (int*)realloc((char*)yys,\ |
140 | \ yymaxdepth*sizeof(int));\ |
141 | \ yy_ps = yyps = yys + ts;\ |
142 | \ yy_pv = yypv = yyv + tv;\ |
143 | \ maxyyps = &yys[yymaxdepth];\ |
144 | \ }\ |
145 | \ if (yyv == NULL || yys == NULL) |
146 | END |
147 | sed -f $tmp < $input > $output ;; |
148 | |
149 | ###################################################### |
150 | # Plan still unknown |
151 | *) mv $input $output; |
152 | esac |
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153 | |
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154 | rm -rf $tmp $input |