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| Commit | Line | Data |
|---|---|---|
| 1c1b91d0 PK |
1 | /* Copyright (c) 1979 Regents of the University of California */ |
| 2 | ||
| 31cef89c | 3 | static char sccsid[] = "@(#)string.c 1.1 8/27/80"; |
| 1c1b91d0 PK |
4 | |
| 5 | #include "whoami.h" | |
| 6 | #include "0.h" | |
| 7 | #ifndef PI01 | |
| 8 | #ifndef PXP | |
| 9 | #include "send.h" | |
| 10 | #endif | |
| 11 | #endif | |
| 12 | ||
| 13 | /* | |
| 14 | * STRING SPACE DECLARATIONS | |
| 15 | * | |
| 16 | * Strng is the base of the current | |
| 17 | * string space and strngp the | |
| 18 | * base of the free area therein. | |
| 19 | * Strp is the array of descriptors. | |
| 20 | */ | |
| 21 | #ifndef PI0 | |
| 22 | STATIC char strings[STRINC]; | |
| 23 | STATIC char *strng = strings; | |
| 24 | STATIC char *strngp = strings; | |
| 25 | #else | |
| 26 | char *strng, *strngp; | |
| 27 | #endif | |
| 28 | #ifndef PI01 | |
| 29 | #ifndef PXP | |
| 30 | STATIC char *strp[20]; | |
| 31 | STATIC char **stract strp; | |
| 32 | int strmax; | |
| 33 | #endif | |
| 34 | #endif | |
| 35 | ||
| 36 | #ifndef PI01 | |
| 37 | #ifndef PXP | |
| 38 | #ifndef PI0 | |
| 39 | initstring() | |
| 40 | #else | |
| 41 | initstring(strings) | |
| 42 | char *strings; | |
| 43 | #endif | |
| 44 | { | |
| 45 | ||
| 46 | *stract++ = strings; | |
| 47 | #ifdef PI0 | |
| 48 | strng = strngp = strings; | |
| 49 | #endif | |
| 50 | strmax = STRINC * 2; | |
| 51 | } | |
| 52 | #endif | |
| 53 | #endif | |
| 54 | ||
| 55 | /* | |
| 56 | * Copy a string into the string area. | |
| 57 | */ | |
| 58 | char * | |
| 59 | savestr(cp) | |
| 60 | register char *cp; | |
| 61 | { | |
| 62 | register int i; | |
| 63 | ||
| 64 | i = strlen(cp) + 1; | |
| 65 | if (strngp + i >= strng + STRINC) { | |
| 66 | strngp = malloc(STRINC); | |
| 67 | if (strngp == -1) { | |
| 68 | yerror("Ran out of memory (string)"); | |
| 69 | pexit(DIED); | |
| 70 | } | |
| 71 | #ifndef PI01 | |
| 72 | #ifndef PXP | |
| 73 | *stract++ = strngp; | |
| 74 | strmax =+ STRINC; | |
| 75 | #endif | |
| 76 | #endif | |
| 77 | strng = strngp; | |
| 78 | } | |
| 79 | strcpy(strngp, cp); | |
| 80 | cp = strngp; | |
| 81 | strngp = cp + i; | |
| 82 | #ifdef PI0 | |
| 83 | send(RSTRING, cp); | |
| 84 | #endif | |
| 85 | return (cp); | |
| 86 | } | |
| 87 | ||
| 88 | #ifndef PI1 | |
| 89 | #ifndef PXP | |
| 90 | esavestr(cp) | |
| 91 | char *cp; | |
| 92 | { | |
| 93 | ||
| 94 | #ifdef PI0 | |
| 95 | send(REVENIT); | |
| 96 | #endif | |
| 97 | strngp = ( (char *) ( ( (int) (strngp + 1) ) &~ 1 ) ); | |
| 98 | return (savestr(cp)); | |
| 99 | } | |
| 100 | #endif | |
| 101 | #endif | |
| 102 | ||
| 103 | #ifndef PI01 | |
| 104 | #ifndef PXP | |
| 105 | soffset(cp) | |
| 106 | register char *cp; | |
| 107 | { | |
| 108 | register char **sp; | |
| 109 | register int i; | |
| 110 | ||
| 111 | if (cp == NIL || cp == OCT || cp == HEX) | |
| 112 | return (-cp); | |
| 113 | for (i = STRINC, sp = strp; sp < stract; sp++) { | |
| 114 | if (cp >= *sp && cp < (*sp + STRINC)) | |
| 115 | return (i + (cp - *sp)); | |
| 116 | i =+ STRINC; | |
| 117 | } | |
| 118 | i = nlfund(cp); | |
| 119 | if (i != 0) | |
| 120 | return (i); | |
| 121 | panic("soffset"); | |
| 122 | } | |
| 123 | #ifdef PI1 | |
| 124 | sreloc(i) | |
| 125 | register int i; | |
| 126 | { | |
| 127 | ||
| 128 | if (i == 0 || i == -OCT || i == -HEX) | |
| 129 | return (-i); | |
| 130 | if (i < STRINC) { | |
| 131 | if (i >= INL) | |
| 132 | panic("sreloc INL"); | |
| 133 | i = nl[i].symbol; | |
| 134 | if (i == 0) | |
| 135 | panic("sreloc nl[i]"); | |
| 136 | return (i); | |
| 137 | } | |
| 138 | if (i > strmax || i < 0) | |
| 139 | panic("sreloc"); | |
| 140 | return (strp[(i / STRINC) - 1] + (i % STRINC)); | |
| 141 | } | |
| 142 | ||
| 143 | evenit() | |
| 144 | { | |
| 145 | ||
| 146 | strngp = (strngp + 1) &~ 1; | |
| 147 | } | |
| 148 | #endif | |
| 149 | #endif | |
| 150 | #endif |